rust-lang · chriskrycho · Oct 8, 2024 · Sep 26, 2024 · Sep 26, 2024 · Sep 26, 2024
diff --git a/2018-edition/src/ch17-00-oop.md b/2018-edition/src/ch17-00-oop.md
@@ -3,8 +3,8 @@
 The 2018 edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch17-00-oop.html) instead.
+version of the book](../ch18-00-oop.html) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust
-1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch17-00-oop.html).
+1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch17-00-oop.html).
diff --git a/2018-edition/src/ch17-01-what-is-oo.md b/2018-edition/src/ch17-01-what-is-oo.md
@@ -3,8 +3,8 @@
 The 2018 edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch17-01-what-is-oo.html) instead.
+version of the book](../ch18-01-what-is-oo.html) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust
-1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch17-01-what-is-oo.html).
+1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch17-01-what-is-oo.html).
diff --git a/2018-edition/src/ch17-02-trait-objects.md b/2018-edition/src/ch17-02-trait-objects.md
@@ -3,8 +3,8 @@
 The 2018 edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch17-02-trait-objects.html) instead.
+version of the book](../ch18-02-trait-objects.html) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust
-1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch17-02-trait-objects.html).
+1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch17-02-trait-objects.html).
diff --git a/2018-edition/src/ch17-03-oo-design-patterns.md b/2018-edition/src/ch17-03-oo-design-patterns.md
@@ -3,7 +3,7 @@
 The 2018 edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch18-03-oo-design-patterns.html) instead.
+version of the book](../ch19-03-oo-design-patterns.html) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust

diff --git a/2018-edition/src/ch18-00-patterns.md b/2018-edition/src/ch18-00-patterns.md
@@ -3,8 +3,8 @@
 The 2018 edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch18-00-patterns.html) instead.
+version of the book](../ch19-00-patterns.html) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust
-1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch18-00-patterns.html).
+1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch18-00-patterns.html).
diff --git a/2018-edition/src/ch18-01-all-the-places-for-patterns.md b/2018-edition/src/ch18-01-all-the-places-for-patterns.md
@@ -3,8 +3,8 @@
 The 2018 edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch18-01-all-the-places-for-patterns.html) instead.
+version of the book](../ch19-01-all-the-places-for-patterns.html) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust
-1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch18-01-all-the-places-for-patterns.html).
+1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch18-01-all-the-places-for-patterns.html).
diff --git a/2018-edition/src/ch18-02-refutability.md b/2018-edition/src/ch18-02-refutability.md
@@ -3,8 +3,8 @@
 The 2018 edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch18-02-refutability.html) instead.
+version of the book](../ch19-02-refutability.html) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust
-1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch18-02-refutability.html).
+1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch18-02-refutability.html).
diff --git a/2018-edition/src/ch18-03-pattern-syntax.md b/2018-edition/src/ch18-03-pattern-syntax.md
@@ -3,8 +3,8 @@
 The 2018 edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch18-03-pattern-syntax.html) instead.
+version of the book](../ch19-03-pattern-syntax.html) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust
-1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch18-03-pattern-syntax.html).
+1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch18-03-pattern-syntax.html).
diff --git a/2018-edition/src/ch19-00-advanced-features.md b/2018-edition/src/ch19-00-advanced-features.md
@@ -3,8 +3,8 @@
 The 2018 edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch19-00-advanced-features.html) instead.
+version of the book](../ch20-00-advanced-features.html) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust
-1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch19-00-advanced-features.html).
+1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch19-00-advanced-features.html).
diff --git a/2018-edition/src/ch19-01-unsafe-rust.md b/2018-edition/src/ch19-01-unsafe-rust.md
@@ -3,8 +3,8 @@
 The 2018 edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch19-01-unsafe-rust.html) instead.
+version of the book](../ch20-01-unsafe-rust.html) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust
-1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch19-01-unsafe-rust.html).
+1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch19-01-unsafe-rust.html).
diff --git a/2018-edition/src/ch19-03-advanced-traits.md b/2018-edition/src/ch19-03-advanced-traits.md
@@ -3,8 +3,8 @@
 The 2018 edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch19-03-advanced-traits.html) instead.
+version of the book](../ch20-03-advanced-traits.html) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust
-1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch19-03-advanced-traits.html).
+1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch19-03-advanced-traits.html).
diff --git a/2018-edition/src/ch19-04-advanced-types.md b/2018-edition/src/ch19-04-advanced-types.md
@@ -3,8 +3,8 @@
 The 2018 edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch19-04-advanced-types.html) instead.
+version of the book](../ch20-04-advanced-types.html) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust
-1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch19-04-advanced-types.html).
+1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch19-04-advanced-types.html).
diff --git a/2018-edition/src/ch19-05-advanced-functions-and-closures.md b/2018-edition/src/ch19-05-advanced-functions-and-closures.md
@@ -3,8 +3,8 @@
 The 2018 edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch19-05-advanced-functions-and-closures.html) instead.
+version of the book](../ch20-05-advanced-functions-and-closures.html) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust
-1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch19-05-advanced-functions-and-closures.html).
+1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch19-05-advanced-functions-and-closures.html).
diff --git a/2018-edition/src/ch19-06-macros.md b/2018-edition/src/ch19-06-macros.md
@@ -3,8 +3,8 @@
 The 2018 edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch19-06-macros.html) instead.
+version of the book](../ch20-06-macros.html) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust
-1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch19-06-macros.html).
+1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch19-06-macros.html).
diff --git a/2018-edition/src/ch20-00-final-project-a-web-server.md b/2018-edition/src/ch20-00-final-project-a-web-server.md
@@ -3,8 +3,8 @@
 The 2018 edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch20-00-final-project-a-web-server.html) instead.
+version of the book](../ch21-00-final-project-a-web-server.html) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust
-1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch20-00-final-project-a-web-server.html).
+1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch20-00-final-project-a-web-server.html).
diff --git a/2018-edition/src/ch20-01-single-threaded.md b/2018-edition/src/ch20-01-single-threaded.md
@@ -3,8 +3,8 @@
 The 2018 edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch20-01-single-threaded.html) instead.
+version of the book](../ch21-01-single-threaded.html) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust
-1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch20-01-single-threaded.html).
+1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch20-01-single-threaded.html).
diff --git a/2018-edition/src/ch20-02-multithreaded.md b/2018-edition/src/ch20-02-multithreaded.md
@@ -3,8 +3,8 @@
 The 2018 edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch20-02-multithreaded.html) instead.
+version of the book](../ch21-02-multithreaded.html) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust
-1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch20-02-multithreaded.html).
+1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch20-02-multithreaded.html).
diff --git a/2018-edition/src/ch20-03-graceful-shutdown-and-cleanup.md b/2018-edition/src/ch20-03-graceful-shutdown-and-cleanup.md
@@ -3,8 +3,8 @@
 The 2018 edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch20-03-graceful-shutdown-and-cleanup.html) instead.
+version of the book](../ch21-03-graceful-shutdown-and-cleanup.html) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust
-1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch20-03-graceful-shutdown-and-cleanup.html).
+1.30](https://doc.rust-lang.org/1.30.0/book/2018-edition/ch20-03-graceful-shutdown-and-cleanup.html).
diff --git a/first-edition/src/associated-types.md b/first-edition/src/associated-types.md
@@ -3,7 +3,7 @@
 The first edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch19-03-advanced-traits.html#specifying-placeholder-types-in-trait-definitions-with-associated-types) instead.
+version of the book](../ch20-03-advanced-traits.html#specifying-placeholder-types-in-trait-definitions-with-associated-types) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust

diff --git a/first-edition/src/const-and-static.md b/first-edition/src/const-and-static.md
@@ -3,7 +3,7 @@
 The first edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch19-01-unsafe-rust.html#accessing-or-modifying-a-mutable-static-variable) instead.
+version of the book](../ch20-01-unsafe-rust.html#accessing-or-modifying-a-mutable-static-variable) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust

diff --git a/first-edition/src/ffi.md b/first-edition/src/ffi.md
@@ -3,7 +3,7 @@
 The first edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch19-01-unsafe-rust.html#calling-rust-functions-from-other-languages) instead.
+version of the book](../ch20-01-unsafe-rust.html#calling-rust-functions-from-other-languages) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust

diff --git a/first-edition/src/macros.md b/first-edition/src/macros.md
@@ -3,7 +3,7 @@
 The first edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch19-06-macros.html) instead.
+version of the book](../ch20-06-macros.html) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust

diff --git a/first-edition/src/operators-and-overloading.md b/first-edition/src/operators-and-overloading.md
@@ -3,7 +3,7 @@
 The first edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch19-03-advanced-traits.html#default-generic-type-parameters-and-operator-overloading) instead.
+version of the book](../ch20-03-advanced-traits.html#default-generic-type-parameters-and-operator-overloading) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust

diff --git a/first-edition/src/patterns.md b/first-edition/src/patterns.md
@@ -3,7 +3,7 @@
 The first edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch18-03-pattern-syntax.html) instead.
+version of the book](../ch19-03-pattern-syntax.html) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust

diff --git a/first-edition/src/procedural-macros.md b/first-edition/src/procedural-macros.md
@@ -3,7 +3,7 @@
 The first edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch19-06-macros.html?highlight=procedural#procedural-macros-for-generating-code-from-attributes) instead.
+version of the book](../ch20-06-macros.html?highlight=procedural#procedural-macros-for-generating-code-from-attributes) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust

diff --git a/first-edition/src/raw-pointers.md b/first-edition/src/raw-pointers.md
@@ -3,7 +3,7 @@
 The first edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch19-01-unsafe-rust.html#dereferencing-a-raw-pointer) instead.
+version of the book](../ch20-01-unsafe-rust.html#dereferencing-a-raw-pointer) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust

diff --git a/first-edition/src/trait-objects.md b/first-edition/src/trait-objects.md
@@ -3,7 +3,7 @@
 The first edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch17-02-trait-objects.html) instead.
+version of the book](../ch18-02-trait-objects.html) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust

diff --git a/first-edition/src/type-aliases.md b/first-edition/src/type-aliases.md
@@ -3,7 +3,7 @@
 The first edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch19-04-advanced-types.html#creating-type-synonyms-with-type-aliases) instead.
+version of the book](../ch20-04-advanced-types.html#creating-type-synonyms-with-type-aliases) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust

diff --git a/first-edition/src/unsafe.md b/first-edition/src/unsafe.md
@@ -3,7 +3,7 @@
 The first edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch19-01-unsafe-rust.html) instead.
+version of the book](../ch20-01-unsafe-rust.html) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust

diff --git a/first-edition/src/unsized-types.md b/first-edition/src/unsized-types.md
@@ -3,7 +3,7 @@
 The first edition of the book is no longer distributed with Rust's documentation.
 
 If you came here via a link or web search, you may want to check out [the current
-version of the book](../ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait) instead.
+version of the book](../ch20-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait) instead.
 
 If you have an internet connection, you can [find a copy distributed with
 Rust

diff --git a/listings/ch17-oop/listing-17-01/Cargo.lock → listings/ch18-oop/listing-18-01/Cargo.lock b/listings/ch17-oop/listing-17-01/Cargo.lock → listings/ch18-oop/listing-18-01/Cargo.lock
diff --git a/listings/ch17-oop/listing-17-01/Cargo.toml → listings/ch18-oop/listing-18-01/Cargo.toml b/listings/ch17-oop/listing-17-01/Cargo.toml → listings/ch18-oop/listing-18-01/Cargo.toml
diff --git a/listings/ch17-oop/listing-17-01/src/lib.rs → listings/ch18-oop/listing-18-01/src/lib.rs b/listings/ch17-oop/listing-17-01/src/lib.rs → listings/ch18-oop/listing-18-01/src/lib.rs
diff --git a/listings/ch17-oop/listing-17-02/Cargo.lock → listings/ch18-oop/listing-18-02/Cargo.lock b/listings/ch17-oop/listing-17-02/Cargo.lock → listings/ch18-oop/listing-18-02/Cargo.lock
diff --git a/listings/ch17-oop/listing-17-02/Cargo.toml → listings/ch18-oop/listing-18-02/Cargo.toml b/listings/ch17-oop/listing-17-02/Cargo.toml → listings/ch18-oop/listing-18-02/Cargo.toml
diff --git a/listings/ch17-oop/listing-17-02/src/lib.rs → listings/ch18-oop/listing-18-02/src/lib.rs b/listings/ch17-oop/listing-17-02/src/lib.rs → listings/ch18-oop/listing-18-02/src/lib.rs
diff --git a/listings/ch17-oop/listing-17-03/Cargo.lock → listings/ch18-oop/listing-18-03/Cargo.lock b/listings/ch17-oop/listing-17-03/Cargo.lock → listings/ch18-oop/listing-18-03/Cargo.lock
diff --git a/listings/ch17-oop/listing-17-03/Cargo.toml → listings/ch18-oop/listing-18-03/Cargo.toml b/listings/ch17-oop/listing-17-03/Cargo.toml → listings/ch18-oop/listing-18-03/Cargo.toml
diff --git a/listings/ch17-oop/listing-17-03/src/lib.rs → listings/ch18-oop/listing-18-03/src/lib.rs b/listings/ch17-oop/listing-17-03/src/lib.rs → listings/ch18-oop/listing-18-03/src/lib.rs
diff --git a/listings/ch17-oop/listing-17-04/Cargo.lock → listings/ch18-oop/listing-18-04/Cargo.lock b/listings/ch17-oop/listing-17-04/Cargo.lock → listings/ch18-oop/listing-18-04/Cargo.lock
diff --git a/listings/ch17-oop/listing-17-04/Cargo.toml → listings/ch18-oop/listing-18-04/Cargo.toml b/listings/ch17-oop/listing-17-04/Cargo.toml → listings/ch18-oop/listing-18-04/Cargo.toml
diff --git a/listings/ch17-oop/listing-17-04/src/lib.rs → listings/ch18-oop/listing-18-04/src/lib.rs b/listings/ch17-oop/listing-17-04/src/lib.rs → listings/ch18-oop/listing-18-04/src/lib.rs
diff --git a/listings/ch17-oop/listing-17-05/Cargo.lock → listings/ch18-oop/listing-18-05/Cargo.lock b/listings/ch17-oop/listing-17-05/Cargo.lock → listings/ch18-oop/listing-18-05/Cargo.lock
diff --git a/listings/ch17-oop/listing-17-05/Cargo.toml → listings/ch18-oop/listing-18-05/Cargo.toml b/listings/ch17-oop/listing-17-05/Cargo.toml → listings/ch18-oop/listing-18-05/Cargo.toml
diff --git a/listings/ch17-oop/listing-17-05/src/lib.rs → listings/ch18-oop/listing-18-05/src/lib.rs b/listings/ch17-oop/listing-17-05/src/lib.rs → listings/ch18-oop/listing-18-05/src/lib.rs
diff --git a/listings/ch17-oop/listing-17-06/Cargo.lock → listings/ch18-oop/listing-18-06/Cargo.lock b/listings/ch17-oop/listing-17-06/Cargo.lock → listings/ch18-oop/listing-18-06/Cargo.lock
diff --git a/listings/ch17-oop/listing-17-06/Cargo.toml → listings/ch18-oop/listing-18-06/Cargo.toml b/listings/ch17-oop/listing-17-06/Cargo.toml → listings/ch18-oop/listing-18-06/Cargo.toml
diff --git a/listings/ch17-oop/listing-17-06/src/lib.rs → listings/ch18-oop/listing-18-06/src/lib.rs b/listings/ch17-oop/listing-17-06/src/lib.rs → listings/ch18-oop/listing-18-06/src/lib.rs
diff --git a/listings/ch17-oop/listing-17-07/Cargo.lock → listings/ch18-oop/listing-18-07/Cargo.lock b/listings/ch17-oop/listing-17-07/Cargo.lock → listings/ch18-oop/listing-18-07/Cargo.lock
diff --git a/listings/ch17-oop/listing-17-07/Cargo.toml → listings/ch18-oop/listing-18-07/Cargo.toml b/listings/ch17-oop/listing-17-07/Cargo.toml → listings/ch18-oop/listing-18-07/Cargo.toml
diff --git a/listings/ch17-oop/listing-17-07/src/lib.rs → listings/ch18-oop/listing-18-07/src/lib.rs b/listings/ch17-oop/listing-17-07/src/lib.rs → listings/ch18-oop/listing-18-07/src/lib.rs
diff --git a/listings/ch17-oop/listing-17-08/Cargo.lock → listings/ch18-oop/listing-18-08/Cargo.lock b/listings/ch17-oop/listing-17-08/Cargo.lock → listings/ch18-oop/listing-18-08/Cargo.lock
diff --git a/listings/ch17-oop/listing-17-08/Cargo.toml → listings/ch18-oop/listing-18-08/Cargo.toml b/listings/ch17-oop/listing-17-08/Cargo.toml → listings/ch18-oop/listing-18-08/Cargo.toml
diff --git a/listings/ch17-oop/listing-17-08/src/lib.rs → listings/ch18-oop/listing-18-08/src/lib.rs b/listings/ch17-oop/listing-17-08/src/lib.rs → listings/ch18-oop/listing-18-08/src/lib.rs
diff --git a/listings/ch17-oop/listing-17-08/src/main.rs → listings/ch18-oop/listing-18-08/src/main.rs b/listings/ch17-oop/listing-17-08/src/main.rs → listings/ch18-oop/listing-18-08/src/main.rs
diff --git a/listings/ch17-oop/listing-17-09/Cargo.lock → listings/ch18-oop/listing-18-09/Cargo.lock b/listings/ch17-oop/listing-17-09/Cargo.lock → listings/ch18-oop/listing-18-09/Cargo.lock
diff --git a/listings/ch17-oop/listing-17-09/Cargo.toml → listings/ch18-oop/listing-18-09/Cargo.toml b/listings/ch17-oop/listing-17-09/Cargo.toml → listings/ch18-oop/listing-18-09/Cargo.toml
diff --git a/listings/ch17-oop/listing-17-09/src/lib.rs → listings/ch18-oop/listing-18-09/src/lib.rs b/listings/ch17-oop/listing-17-09/src/lib.rs → listings/ch18-oop/listing-18-09/src/lib.rs
diff --git a/listings/ch17-oop/listing-17-09/src/main.rs → listings/ch18-oop/listing-18-09/src/main.rs b/listings/ch17-oop/listing-17-09/src/main.rs → listings/ch18-oop/listing-18-09/src/main.rs
diff --git a/listings/ch17-oop/listing-17-10/Cargo.lock → listings/ch18-oop/listing-18-10/Cargo.lock b/listings/ch17-oop/listing-17-10/Cargo.lock → listings/ch18-oop/listing-18-10/Cargo.lock
diff --git a/listings/ch17-oop/listing-17-10/Cargo.toml → listings/ch18-oop/listing-18-10/Cargo.toml b/listings/ch17-oop/listing-17-10/Cargo.toml → listings/ch18-oop/listing-18-10/Cargo.toml
diff --git a/listings/ch17-oop/listing-17-10/output.txt → listings/ch18-oop/listing-18-10/output.txt b/listings/ch17-oop/listing-17-10/output.txt → listings/ch18-oop/listing-18-10/output.txt
diff --git a/listings/ch17-oop/listing-17-10/src/lib.rs → listings/ch18-oop/listing-18-10/src/lib.rs b/listings/ch17-oop/listing-17-10/src/lib.rs → listings/ch18-oop/listing-18-10/src/lib.rs
diff --git a/listings/ch17-oop/listing-17-10/src/main.rs → listings/ch18-oop/listing-18-10/src/main.rs b/listings/ch17-oop/listing-17-10/src/main.rs → listings/ch18-oop/listing-18-10/src/main.rs
diff --git a/listings/ch17-oop/listing-17-11/Cargo.lock → listings/ch18-oop/listing-18-11/Cargo.lock b/listings/ch17-oop/listing-17-11/Cargo.lock → listings/ch18-oop/listing-18-11/Cargo.lock
diff --git a/listings/ch17-oop/listing-17-11/Cargo.toml → listings/ch18-oop/listing-18-11/Cargo.toml b/listings/ch17-oop/listing-17-11/Cargo.toml → listings/ch18-oop/listing-18-11/Cargo.toml
diff --git a/listings/ch17-oop/listing-17-11/src/main.rs → listings/ch18-oop/listing-18-11/src/main.rs b/listings/ch17-oop/listing-17-11/src/main.rs → listings/ch18-oop/listing-18-11/src/main.rs
diff --git a/listings/ch17-oop/listing-17-12/Cargo.lock → listings/ch18-oop/listing-18-12/Cargo.lock b/listings/ch17-oop/listing-17-12/Cargo.lock → listings/ch18-oop/listing-18-12/Cargo.lock
diff --git a/listings/ch17-oop/listing-17-12/Cargo.toml → listings/ch18-oop/listing-18-12/Cargo.toml b/listings/ch17-oop/listing-17-12/Cargo.toml → listings/ch18-oop/listing-18-12/Cargo.toml
diff --git a/listings/ch17-oop/listing-17-12/src/lib.rs → listings/ch18-oop/listing-18-12/src/lib.rs b/listings/ch17-oop/listing-17-12/src/lib.rs → listings/ch18-oop/listing-18-12/src/lib.rs
diff --git a/listings/ch17-oop/listing-17-12/src/main.rs → listings/ch18-oop/listing-18-12/src/main.rs b/listings/ch17-oop/listing-17-12/src/main.rs → listings/ch18-oop/listing-18-12/src/main.rs
diff --git a/listings/ch17-oop/listing-17-13/Cargo.lock → listings/ch18-oop/listing-18-13/Cargo.lock b/listings/ch17-oop/listing-17-13/Cargo.lock → listings/ch18-oop/listing-18-13/Cargo.lock
diff --git a/listings/ch17-oop/listing-17-13/Cargo.toml → listings/ch18-oop/listing-18-13/Cargo.toml b/listings/ch17-oop/listing-17-13/Cargo.toml → listings/ch18-oop/listing-18-13/Cargo.toml
diff --git a/listings/ch17-oop/listing-17-13/src/lib.rs → listings/ch18-oop/listing-18-13/src/lib.rs b/listings/ch17-oop/listing-17-13/src/lib.rs → listings/ch18-oop/listing-18-13/src/lib.rs
diff --git a/listings/ch17-oop/listing-17-13/src/main.rs → listings/ch18-oop/listing-18-13/src/main.rs b/listings/ch17-oop/listing-17-13/src/main.rs → listings/ch18-oop/listing-18-13/src/main.rs
diff --git a/listings/ch17-oop/listing-17-14/Cargo.lock → listings/ch18-oop/listing-18-14/Cargo.lock b/listings/ch17-oop/listing-17-14/Cargo.lock → listings/ch18-oop/listing-18-14/Cargo.lock
diff --git a/listings/ch17-oop/listing-17-14/Cargo.toml → listings/ch18-oop/listing-18-14/Cargo.toml b/listings/ch17-oop/listing-17-14/Cargo.toml → listings/ch18-oop/listing-18-14/Cargo.toml
diff --git a/listings/ch17-oop/listing-17-14/src/lib.rs → listings/ch18-oop/listing-18-14/src/lib.rs b/listings/ch17-oop/listing-17-14/src/lib.rs → listings/ch18-oop/listing-18-14/src/lib.rs
diff --git a/listings/ch17-oop/listing-17-14/src/main.rs → listings/ch18-oop/listing-18-14/src/main.rs b/listings/ch17-oop/listing-17-14/src/main.rs → listings/ch18-oop/listing-18-14/src/main.rs
diff --git a/listings/ch17-oop/listing-17-15/Cargo.lock → listings/ch18-oop/listing-18-15/Cargo.lock b/listings/ch17-oop/listing-17-15/Cargo.lock → listings/ch18-oop/listing-18-15/Cargo.lock
diff --git a/listings/ch17-oop/listing-17-15/Cargo.toml → listings/ch18-oop/listing-18-15/Cargo.toml b/listings/ch17-oop/listing-17-15/Cargo.toml → listings/ch18-oop/listing-18-15/Cargo.toml
diff --git a/listings/ch17-oop/listing-17-15/src/lib.rs → listings/ch18-oop/listing-18-15/src/lib.rs b/listings/ch17-oop/listing-17-15/src/lib.rs → listings/ch18-oop/listing-18-15/src/lib.rs
diff --git a/listings/ch17-oop/listing-17-15/src/main.rs → listings/ch18-oop/listing-18-15/src/main.rs b/listings/ch17-oop/listing-17-15/src/main.rs → listings/ch18-oop/listing-18-15/src/main.rs
diff --git a/listings/ch17-oop/listing-17-16/Cargo.lock → listings/ch18-oop/listing-18-16/Cargo.lock b/listings/ch17-oop/listing-17-16/Cargo.lock → listings/ch18-oop/listing-18-16/Cargo.lock
diff --git a/listings/ch17-oop/listing-17-16/Cargo.toml → listings/ch18-oop/listing-18-16/Cargo.toml b/listings/ch17-oop/listing-17-16/Cargo.toml → listings/ch18-oop/listing-18-16/Cargo.toml
diff --git a/listings/ch17-oop/listing-17-16/src/lib.rs → listings/ch18-oop/listing-18-16/src/lib.rs b/listings/ch17-oop/listing-17-16/src/lib.rs → listings/ch18-oop/listing-18-16/src/lib.rs
diff --git a/listings/ch17-oop/listing-17-16/src/main.rs → listings/ch18-oop/listing-18-16/src/main.rs b/listings/ch17-oop/listing-17-16/src/main.rs → listings/ch18-oop/listing-18-16/src/main.rs
diff --git a/listings/ch17-oop/listing-17-17/Cargo.lock → listings/ch18-oop/listing-18-17/Cargo.lock b/listings/ch17-oop/listing-17-17/Cargo.lock → listings/ch18-oop/listing-18-17/Cargo.lock
diff --git a/listings/ch17-oop/listing-17-17/Cargo.toml → listings/ch18-oop/listing-18-17/Cargo.toml b/listings/ch17-oop/listing-17-17/Cargo.toml → listings/ch18-oop/listing-18-17/Cargo.toml
diff --git a/listings/ch17-oop/listing-17-17/src/lib.rs → listings/ch18-oop/listing-18-17/src/lib.rs b/listings/ch17-oop/listing-17-17/src/lib.rs → listings/ch18-oop/listing-18-17/src/lib.rs
diff --git a/listings/ch17-oop/listing-17-17/src/main.rs → listings/ch18-oop/listing-18-17/src/main.rs b/listings/ch17-oop/listing-17-17/src/main.rs → listings/ch18-oop/listing-18-17/src/main.rs
diff --git a/listings/ch17-oop/listing-17-18/Cargo.lock → listings/ch18-oop/listing-18-18/Cargo.lock b/listings/ch17-oop/listing-17-18/Cargo.lock → listings/ch18-oop/listing-18-18/Cargo.lock
diff --git a/listings/ch17-oop/listing-17-18/Cargo.toml → listings/ch18-oop/listing-18-18/Cargo.toml b/listings/ch17-oop/listing-17-18/Cargo.toml → listings/ch18-oop/listing-18-18/Cargo.toml
diff --git a/listings/ch17-oop/listing-17-18/src/lib.rs → listings/ch18-oop/listing-18-18/src/lib.rs b/listings/ch17-oop/listing-17-18/src/lib.rs → listings/ch18-oop/listing-18-18/src/lib.rs
diff --git a/listings/ch17-oop/listing-17-18/src/main.rs → listings/ch18-oop/listing-18-18/src/main.rs b/listings/ch17-oop/listing-17-18/src/main.rs → listings/ch18-oop/listing-18-18/src/main.rs
diff --git a/listings/ch17-oop/listing-17-19/Cargo.lock → listings/ch18-oop/listing-18-19/Cargo.lock b/listings/ch17-oop/listing-17-19/Cargo.lock → listings/ch18-oop/listing-18-19/Cargo.lock
diff --git a/listings/ch17-oop/listing-17-19/Cargo.toml → listings/ch18-oop/listing-18-19/Cargo.toml b/listings/ch17-oop/listing-17-19/Cargo.toml → listings/ch18-oop/listing-18-19/Cargo.toml
diff --git a/listings/ch17-oop/listing-17-19/src/lib.rs → listings/ch18-oop/listing-18-19/src/lib.rs b/listings/ch17-oop/listing-17-19/src/lib.rs → listings/ch18-oop/listing-18-19/src/lib.rs
diff --git a/listings/ch17-oop/listing-17-20/Cargo.lock → listings/ch18-oop/listing-18-20/Cargo.lock b/listings/ch17-oop/listing-17-20/Cargo.lock → listings/ch18-oop/listing-18-20/Cargo.lock
diff --git a/listings/ch17-oop/listing-17-20/Cargo.toml → listings/ch18-oop/listing-18-20/Cargo.toml b/listings/ch17-oop/listing-17-20/Cargo.toml → listings/ch18-oop/listing-18-20/Cargo.toml
diff --git a/listings/ch17-oop/listing-17-20/src/lib.rs → listings/ch18-oop/listing-18-20/src/lib.rs b/listings/ch17-oop/listing-17-20/src/lib.rs → listings/ch18-oop/listing-18-20/src/lib.rs
diff --git a/listings/ch17-oop/listing-17-21/Cargo.lock → listings/ch18-oop/listing-18-21/Cargo.lock b/listings/ch17-oop/listing-17-21/Cargo.lock → listings/ch18-oop/listing-18-21/Cargo.lock
diff --git a/listings/ch17-oop/listing-17-21/Cargo.toml → listings/ch18-oop/listing-18-21/Cargo.toml b/listings/ch17-oop/listing-17-21/Cargo.toml → listings/ch18-oop/listing-18-21/Cargo.toml
diff --git a/listings/ch17-oop/listing-17-21/src/lib.rs → listings/ch18-oop/listing-18-21/src/lib.rs b/listings/ch17-oop/listing-17-21/src/lib.rs → listings/ch18-oop/listing-18-21/src/lib.rs
diff --git a/listings/ch17-oop/listing-17-21/src/main.rs → listings/ch18-oop/listing-18-21/src/main.rs b/listings/ch17-oop/listing-17-21/src/main.rs → listings/ch18-oop/listing-18-21/src/main.rs
diff --git a/...rns-and-matching/listing-18-01/Cargo.lock → ...rns-and-matching/listing-19-01/Cargo.lock b/...rns-and-matching/listing-18-01/Cargo.lock → ...rns-and-matching/listing-19-01/Cargo.lock
diff --git a/...rns-and-matching/listing-18-01/Cargo.toml → ...rns-and-matching/listing-19-01/Cargo.toml b/...rns-and-matching/listing-18-01/Cargo.toml → ...rns-and-matching/listing-19-01/Cargo.toml
diff --git a/...ns-and-matching/listing-18-01/src/main.rs → ...ns-and-matching/listing-19-01/src/main.rs b/...ns-and-matching/listing-18-01/src/main.rs → ...ns-and-matching/listing-19-01/src/main.rs
diff --git a/...rns-and-matching/listing-18-02/Cargo.lock → ...rns-and-matching/listing-19-02/Cargo.lock b/...rns-and-matching/listing-18-02/Cargo.lock → ...rns-and-matching/listing-19-02/Cargo.lock
diff --git a/...rns-and-matching/listing-18-02/Cargo.toml → ...rns-and-matching/listing-19-02/Cargo.toml b/...rns-and-matching/listing-18-02/Cargo.toml → ...rns-and-matching/listing-19-02/Cargo.toml
diff --git a/...ns-and-matching/listing-18-02/src/main.rs → ...ns-and-matching/listing-19-02/src/main.rs b/...ns-and-matching/listing-18-02/src/main.rs → ...ns-and-matching/listing-19-02/src/main.rs
diff --git a/...rns-and-matching/listing-18-03/Cargo.lock → ...rns-and-matching/listing-19-03/Cargo.lock b/...rns-and-matching/listing-18-03/Cargo.lock → ...rns-and-matching/listing-19-03/Cargo.lock
diff --git a/...rns-and-matching/listing-18-03/Cargo.toml → ...rns-and-matching/listing-19-03/Cargo.toml b/...rns-and-matching/listing-18-03/Cargo.toml → ...rns-and-matching/listing-19-03/Cargo.toml
diff --git a/...rns-and-matching/listing-18-03/output.txt → ...rns-and-matching/listing-19-03/output.txt b/...rns-and-matching/listing-18-03/output.txt → ...rns-and-matching/listing-19-03/output.txt
diff --git a/...ns-and-matching/listing-18-03/src/main.rs → ...ns-and-matching/listing-19-03/src/main.rs b/...ns-and-matching/listing-18-03/src/main.rs → ...ns-and-matching/listing-19-03/src/main.rs
diff --git a/...rns-and-matching/listing-18-04/Cargo.lock → ...rns-and-matching/listing-19-04/Cargo.lock b/...rns-and-matching/listing-18-04/Cargo.lock → ...rns-and-matching/listing-19-04/Cargo.lock
diff --git a/...rns-and-matching/listing-18-04/Cargo.toml → ...rns-and-matching/listing-19-04/Cargo.toml b/...rns-and-matching/listing-18-04/Cargo.toml → ...rns-and-matching/listing-19-04/Cargo.toml
diff --git a/...ns-and-matching/listing-18-04/src/main.rs → ...ns-and-matching/listing-19-04/src/main.rs b/...ns-and-matching/listing-18-04/src/main.rs → ...ns-and-matching/listing-19-04/src/main.rs
diff --git a/...rns-and-matching/listing-18-05/Cargo.lock → ...rns-and-matching/listing-19-05/Cargo.lock b/...rns-and-matching/listing-18-05/Cargo.lock → ...rns-and-matching/listing-19-05/Cargo.lock
diff --git a/...rns-and-matching/listing-18-05/Cargo.toml → ...rns-and-matching/listing-19-05/Cargo.toml b/...rns-and-matching/listing-18-05/Cargo.toml → ...rns-and-matching/listing-19-05/Cargo.toml
diff --git a/...rns-and-matching/listing-18-05/output.txt → ...rns-and-matching/listing-19-05/output.txt b/...rns-and-matching/listing-18-05/output.txt → ...rns-and-matching/listing-19-05/output.txt
diff --git a/...ns-and-matching/listing-18-05/src/main.rs → ...ns-and-matching/listing-19-05/src/main.rs b/...ns-and-matching/listing-18-05/src/main.rs → ...ns-and-matching/listing-19-05/src/main.rs
diff --git a/...rns-and-matching/listing-18-06/Cargo.lock → ...rns-and-matching/listing-19-06/Cargo.lock b/...rns-and-matching/listing-18-06/Cargo.lock → ...rns-and-matching/listing-19-06/Cargo.lock
diff --git a/...rns-and-matching/listing-18-06/Cargo.toml → ...rns-and-matching/listing-19-06/Cargo.toml b/...rns-and-matching/listing-18-06/Cargo.toml → ...rns-and-matching/listing-19-06/Cargo.toml
diff --git a/...ns-and-matching/listing-18-06/src/main.rs → ...ns-and-matching/listing-19-06/src/main.rs b/...ns-and-matching/listing-18-06/src/main.rs → ...ns-and-matching/listing-19-06/src/main.rs
diff --git a/...rns-and-matching/listing-18-07/Cargo.lock → ...rns-and-matching/listing-19-07/Cargo.lock b/...rns-and-matching/listing-18-07/Cargo.lock → ...rns-and-matching/listing-19-07/Cargo.lock
diff --git a/...rns-and-matching/listing-18-07/Cargo.toml → ...rns-and-matching/listing-19-07/Cargo.toml b/...rns-and-matching/listing-18-07/Cargo.toml → ...rns-and-matching/listing-19-07/Cargo.toml
diff --git a/...ns-and-matching/listing-18-07/src/main.rs → ...ns-and-matching/listing-19-07/src/main.rs b/...ns-and-matching/listing-18-07/src/main.rs → ...ns-and-matching/listing-19-07/src/main.rs
diff --git a/...rns-and-matching/listing-18-08/Cargo.lock → ...rns-and-matching/listing-19-08/Cargo.lock b/...rns-and-matching/listing-18-08/Cargo.lock → ...rns-and-matching/listing-19-08/Cargo.lock
diff --git a/...rns-and-matching/listing-18-08/Cargo.toml → ...rns-and-matching/listing-19-08/Cargo.toml b/...rns-and-matching/listing-18-08/Cargo.toml → ...rns-and-matching/listing-19-08/Cargo.toml
diff --git a/...rns-and-matching/listing-18-08/output.txt → ...rns-and-matching/listing-19-08/output.txt b/...rns-and-matching/listing-18-08/output.txt → ...rns-and-matching/listing-19-08/output.txt
@@ -7,7 +7,7 @@ error[E0005]: refutable pattern in local binding
   |         ^^^^^^^ pattern `None` not covered
   |
   = note: `let` bindings require an "irrefutable pattern", like a `struct` or an `enum` with only one variant
-  = note: for more information, visit https://doc.rust-lang.org/book/ch18-02-refutability.html
+  = note: for more information, visit https://doc.rust-lang.org/book/ch19-02-refutability.html
   = note: the matched value is of type `Option<i32>`
 help: you might want to use `let else` to handle the variant that isn't matched
   |

diff --git a/...ns-and-matching/listing-18-08/src/main.rs → ...ns-and-matching/listing-19-08/src/main.rs b/...ns-and-matching/listing-18-08/src/main.rs → ...ns-and-matching/listing-19-08/src/main.rs
diff --git a/...rns-and-matching/listing-18-09/Cargo.lock → ...rns-and-matching/listing-19-09/Cargo.lock b/...rns-and-matching/listing-18-09/Cargo.lock → ...rns-and-matching/listing-19-09/Cargo.lock
diff --git a/...rns-and-matching/listing-18-09/Cargo.toml → ...rns-and-matching/listing-19-09/Cargo.toml b/...rns-and-matching/listing-18-09/Cargo.toml → ...rns-and-matching/listing-19-09/Cargo.toml
diff --git a/...ns-and-matching/listing-18-09/src/main.rs → ...ns-and-matching/listing-19-09/src/main.rs b/...ns-and-matching/listing-18-09/src/main.rs → ...ns-and-matching/listing-19-09/src/main.rs
diff --git a/...rns-and-matching/listing-18-10/Cargo.lock → ...rns-and-matching/listing-19-10/Cargo.lock b/...rns-and-matching/listing-18-10/Cargo.lock → ...rns-and-matching/listing-19-10/Cargo.lock
diff --git a/...rns-and-matching/listing-18-10/Cargo.toml → ...rns-and-matching/listing-19-10/Cargo.toml b/...rns-and-matching/listing-18-10/Cargo.toml → ...rns-and-matching/listing-19-10/Cargo.toml
diff --git a/...rns-and-matching/listing-18-10/output.txt → ...rns-and-matching/listing-19-10/output.txt b/...rns-and-matching/listing-18-10/output.txt → ...rns-and-matching/listing-19-10/output.txt
diff --git a/...ns-and-matching/listing-18-10/src/main.rs → ...ns-and-matching/listing-19-10/src/main.rs b/...ns-and-matching/listing-18-10/src/main.rs → ...ns-and-matching/listing-19-10/src/main.rs
diff --git a/...rns-and-matching/listing-18-11/Cargo.lock → ...rns-and-matching/listing-19-11/Cargo.lock b/...rns-and-matching/listing-18-11/Cargo.lock → ...rns-and-matching/listing-19-11/Cargo.lock
diff --git a/...rns-and-matching/listing-18-11/Cargo.toml → ...rns-and-matching/listing-19-11/Cargo.toml b/...rns-and-matching/listing-18-11/Cargo.toml → ...rns-and-matching/listing-19-11/Cargo.toml
diff --git a/...ns-and-matching/listing-18-11/src/main.rs → ...ns-and-matching/listing-19-11/src/main.rs b/...ns-and-matching/listing-18-11/src/main.rs → ...ns-and-matching/listing-19-11/src/main.rs
diff --git a/...rns-and-matching/listing-18-12/Cargo.lock → ...rns-and-matching/listing-19-12/Cargo.lock b/...rns-and-matching/listing-18-12/Cargo.lock → ...rns-and-matching/listing-19-12/Cargo.lock
diff --git a/...rns-and-matching/listing-18-12/Cargo.toml → ...rns-and-matching/listing-19-12/Cargo.toml b/...rns-and-matching/listing-18-12/Cargo.toml → ...rns-and-matching/listing-19-12/Cargo.toml
diff --git a/...ns-and-matching/listing-18-12/src/main.rs → ...ns-and-matching/listing-19-12/src/main.rs b/...ns-and-matching/listing-18-12/src/main.rs → ...ns-and-matching/listing-19-12/src/main.rs
diff --git a/...rns-and-matching/listing-18-13/Cargo.lock → ...rns-and-matching/listing-19-13/Cargo.lock b/...rns-and-matching/listing-18-13/Cargo.lock → ...rns-and-matching/listing-19-13/Cargo.lock
diff --git a/...rns-and-matching/listing-18-13/Cargo.toml → ...rns-and-matching/listing-19-13/Cargo.toml b/...rns-and-matching/listing-18-13/Cargo.toml → ...rns-and-matching/listing-19-13/Cargo.toml
diff --git a/...ns-and-matching/listing-18-13/src/main.rs → ...ns-and-matching/listing-19-13/src/main.rs b/...ns-and-matching/listing-18-13/src/main.rs → ...ns-and-matching/listing-19-13/src/main.rs
diff --git a/...rns-and-matching/listing-18-14/Cargo.lock → ...rns-and-matching/listing-19-14/Cargo.lock b/...rns-and-matching/listing-18-14/Cargo.lock → ...rns-and-matching/listing-19-14/Cargo.lock
diff --git a/...rns-and-matching/listing-18-14/Cargo.toml → ...rns-and-matching/listing-19-14/Cargo.toml b/...rns-and-matching/listing-18-14/Cargo.toml → ...rns-and-matching/listing-19-14/Cargo.toml
diff --git a/...ns-and-matching/listing-18-14/src/main.rs → ...ns-and-matching/listing-19-14/src/main.rs b/...ns-and-matching/listing-18-14/src/main.rs → ...ns-and-matching/listing-19-14/src/main.rs
diff --git a/...rns-and-matching/listing-18-15/Cargo.lock → ...rns-and-matching/listing-19-15/Cargo.lock b/...rns-and-matching/listing-18-15/Cargo.lock → ...rns-and-matching/listing-19-15/Cargo.lock
diff --git a/...rns-and-matching/listing-18-15/Cargo.toml → ...rns-and-matching/listing-19-15/Cargo.toml b/...rns-and-matching/listing-18-15/Cargo.toml → ...rns-and-matching/listing-19-15/Cargo.toml
diff --git a/...ns-and-matching/listing-18-15/src/main.rs → ...ns-and-matching/listing-19-15/src/main.rs b/...ns-and-matching/listing-18-15/src/main.rs → ...ns-and-matching/listing-19-15/src/main.rs
diff --git a/...rns-and-matching/listing-18-16/Cargo.lock → ...rns-and-matching/listing-19-16/Cargo.lock b/...rns-and-matching/listing-18-16/Cargo.lock → ...rns-and-matching/listing-19-16/Cargo.lock
diff --git a/...rns-and-matching/listing-18-16/Cargo.toml → ...rns-and-matching/listing-19-16/Cargo.toml b/...rns-and-matching/listing-18-16/Cargo.toml → ...rns-and-matching/listing-19-16/Cargo.toml
diff --git a/...ns-and-matching/listing-18-16/src/main.rs → ...ns-and-matching/listing-19-16/src/main.rs b/...ns-and-matching/listing-18-16/src/main.rs → ...ns-and-matching/listing-19-16/src/main.rs
diff --git a/...rns-and-matching/listing-18-17/Cargo.lock → ...rns-and-matching/listing-19-17/Cargo.lock b/...rns-and-matching/listing-18-17/Cargo.lock → ...rns-and-matching/listing-19-17/Cargo.lock
diff --git a/...rns-and-matching/listing-18-17/Cargo.toml → ...rns-and-matching/listing-19-17/Cargo.toml b/...rns-and-matching/listing-18-17/Cargo.toml → ...rns-and-matching/listing-19-17/Cargo.toml
diff --git a/...ns-and-matching/listing-18-17/src/main.rs → ...ns-and-matching/listing-19-17/src/main.rs b/...ns-and-matching/listing-18-17/src/main.rs → ...ns-and-matching/listing-19-17/src/main.rs
diff --git a/...rns-and-matching/listing-18-18/Cargo.lock → ...rns-and-matching/listing-19-18/Cargo.lock b/...rns-and-matching/listing-18-18/Cargo.lock → ...rns-and-matching/listing-19-18/Cargo.lock
diff --git a/...rns-and-matching/listing-18-18/Cargo.toml → ...rns-and-matching/listing-19-18/Cargo.toml b/...rns-and-matching/listing-18-18/Cargo.toml → ...rns-and-matching/listing-19-18/Cargo.toml
diff --git a/...ns-and-matching/listing-18-18/src/main.rs → ...ns-and-matching/listing-19-18/src/main.rs b/...ns-and-matching/listing-18-18/src/main.rs → ...ns-and-matching/listing-19-18/src/main.rs
diff --git a/...rns-and-matching/listing-18-19/Cargo.lock → ...rns-and-matching/listing-19-19/Cargo.lock b/...rns-and-matching/listing-18-19/Cargo.lock → ...rns-and-matching/listing-19-19/Cargo.lock
diff --git a/...rns-and-matching/listing-18-19/Cargo.toml → ...rns-and-matching/listing-19-19/Cargo.toml b/...rns-and-matching/listing-18-19/Cargo.toml → ...rns-and-matching/listing-19-19/Cargo.toml
diff --git a/...ns-and-matching/listing-18-19/src/main.rs → ...ns-and-matching/listing-19-19/src/main.rs b/...ns-and-matching/listing-18-19/src/main.rs → ...ns-and-matching/listing-19-19/src/main.rs
diff --git a/...rns-and-matching/listing-18-20/Cargo.lock → ...rns-and-matching/listing-19-20/Cargo.lock b/...rns-and-matching/listing-18-20/Cargo.lock → ...rns-and-matching/listing-19-20/Cargo.lock
diff --git a/...rns-and-matching/listing-18-20/Cargo.toml → ...rns-and-matching/listing-19-20/Cargo.toml b/...rns-and-matching/listing-18-20/Cargo.toml → ...rns-and-matching/listing-19-20/Cargo.toml
diff --git a/...ns-and-matching/listing-18-20/src/main.rs → ...ns-and-matching/listing-19-20/src/main.rs b/...ns-and-matching/listing-18-20/src/main.rs → ...ns-and-matching/listing-19-20/src/main.rs
diff --git a/...rns-and-matching/listing-18-21/Cargo.lock → ...rns-and-matching/listing-19-21/Cargo.lock b/...rns-and-matching/listing-18-21/Cargo.lock → ...rns-and-matching/listing-19-21/Cargo.lock
diff --git a/...rns-and-matching/listing-18-21/Cargo.toml → ...rns-and-matching/listing-19-21/Cargo.toml b/...rns-and-matching/listing-18-21/Cargo.toml → ...rns-and-matching/listing-19-21/Cargo.toml
diff --git a/...ns-and-matching/listing-18-21/src/main.rs → ...ns-and-matching/listing-19-21/src/main.rs b/...ns-and-matching/listing-18-21/src/main.rs → ...ns-and-matching/listing-19-21/src/main.rs
diff --git a/...rns-and-matching/listing-18-22/Cargo.lock → ...rns-and-matching/listing-19-22/Cargo.lock b/...rns-and-matching/listing-18-22/Cargo.lock → ...rns-and-matching/listing-19-22/Cargo.lock
diff --git a/...rns-and-matching/listing-18-22/Cargo.toml → ...rns-and-matching/listing-19-22/Cargo.toml b/...rns-and-matching/listing-18-22/Cargo.toml → ...rns-and-matching/listing-19-22/Cargo.toml
diff --git a/...ns-and-matching/listing-18-22/src/main.rs → ...ns-and-matching/listing-19-22/src/main.rs b/...ns-and-matching/listing-18-22/src/main.rs → ...ns-and-matching/listing-19-22/src/main.rs
diff --git a/...rns-and-matching/listing-18-23/Cargo.lock → ...rns-and-matching/listing-19-23/Cargo.lock b/...rns-and-matching/listing-18-23/Cargo.lock → ...rns-and-matching/listing-19-23/Cargo.lock
diff --git a/...rns-and-matching/listing-18-23/Cargo.toml → ...rns-and-matching/listing-19-23/Cargo.toml b/...rns-and-matching/listing-18-23/Cargo.toml → ...rns-and-matching/listing-19-23/Cargo.toml
diff --git a/...ns-and-matching/listing-18-23/src/main.rs → ...ns-and-matching/listing-19-23/src/main.rs b/...ns-and-matching/listing-18-23/src/main.rs → ...ns-and-matching/listing-19-23/src/main.rs
diff --git a/...rns-and-matching/listing-18-24/Cargo.lock → ...rns-and-matching/listing-19-24/Cargo.lock b/...rns-and-matching/listing-18-24/Cargo.lock → ...rns-and-matching/listing-19-24/Cargo.lock
diff --git a/...rns-and-matching/listing-18-24/Cargo.toml → ...rns-and-matching/listing-19-24/Cargo.toml b/...rns-and-matching/listing-18-24/Cargo.toml → ...rns-and-matching/listing-19-24/Cargo.toml
diff --git a/...ns-and-matching/listing-18-24/src/main.rs → ...ns-and-matching/listing-19-24/src/main.rs b/...ns-and-matching/listing-18-24/src/main.rs → ...ns-and-matching/listing-19-24/src/main.rs
diff --git a/...rns-and-matching/listing-18-25/Cargo.lock → ...rns-and-matching/listing-19-25/Cargo.lock b/...rns-and-matching/listing-18-25/Cargo.lock → ...rns-and-matching/listing-19-25/Cargo.lock
diff --git a/...rns-and-matching/listing-18-25/Cargo.toml → ...rns-and-matching/listing-19-25/Cargo.toml b/...rns-and-matching/listing-18-25/Cargo.toml → ...rns-and-matching/listing-19-25/Cargo.toml
diff --git a/...rns-and-matching/listing-18-25/output.txt → ...rns-and-matching/listing-19-25/output.txt b/...rns-and-matching/listing-18-25/output.txt → ...rns-and-matching/listing-19-25/output.txt
diff --git a/...and-matching/listing-18-25/rustfmt-ignore → ...and-matching/listing-19-25/rustfmt-ignore b/...and-matching/listing-18-25/rustfmt-ignore → ...and-matching/listing-19-25/rustfmt-ignore
diff --git a/...ns-and-matching/listing-18-25/src/main.rs → ...ns-and-matching/listing-19-25/src/main.rs b/...ns-and-matching/listing-18-25/src/main.rs → ...ns-and-matching/listing-19-25/src/main.rs
diff --git a/...rns-and-matching/listing-18-26/Cargo.lock → ...rns-and-matching/listing-19-26/Cargo.lock b/...rns-and-matching/listing-18-26/Cargo.lock → ...rns-and-matching/listing-19-26/Cargo.lock
diff --git a/...rns-and-matching/listing-18-26/Cargo.toml → ...rns-and-matching/listing-19-26/Cargo.toml b/...rns-and-matching/listing-18-26/Cargo.toml → ...rns-and-matching/listing-19-26/Cargo.toml
diff --git a/...ns-and-matching/listing-18-26/src/main.rs → ...ns-and-matching/listing-19-26/src/main.rs b/...ns-and-matching/listing-18-26/src/main.rs → ...ns-and-matching/listing-19-26/src/main.rs
diff --git a/...rns-and-matching/listing-18-27/Cargo.lock → ...rns-and-matching/listing-19-27/Cargo.lock b/...rns-and-matching/listing-18-27/Cargo.lock → ...rns-and-matching/listing-19-27/Cargo.lock
diff --git a/...rns-and-matching/listing-18-27/Cargo.toml → ...rns-and-matching/listing-19-27/Cargo.toml b/...rns-and-matching/listing-18-27/Cargo.toml → ...rns-and-matching/listing-19-27/Cargo.toml
diff --git a/...ns-and-matching/listing-18-27/src/main.rs → ...ns-and-matching/listing-19-27/src/main.rs b/...ns-and-matching/listing-18-27/src/main.rs → ...ns-and-matching/listing-19-27/src/main.rs
diff --git a/...rns-and-matching/listing-18-28/Cargo.lock → ...rns-and-matching/listing-19-28/Cargo.lock b/...rns-and-matching/listing-18-28/Cargo.lock → ...rns-and-matching/listing-19-28/Cargo.lock
diff --git a/...rns-and-matching/listing-18-28/Cargo.toml → ...rns-and-matching/listing-19-28/Cargo.toml b/...rns-and-matching/listing-18-28/Cargo.toml → ...rns-and-matching/listing-19-28/Cargo.toml
diff --git a/...ns-and-matching/listing-18-28/src/main.rs → ...ns-and-matching/listing-19-28/src/main.rs b/...ns-and-matching/listing-18-28/src/main.rs → ...ns-and-matching/listing-19-28/src/main.rs
diff --git a/...rns-and-matching/listing-18-29/Cargo.lock → ...rns-and-matching/listing-19-29/Cargo.lock b/...rns-and-matching/listing-18-29/Cargo.lock → ...rns-and-matching/listing-19-29/Cargo.lock
diff --git a/...rns-and-matching/listing-18-29/Cargo.toml → ...rns-and-matching/listing-19-29/Cargo.toml b/...rns-and-matching/listing-18-29/Cargo.toml → ...rns-and-matching/listing-19-29/Cargo.toml
diff --git a/...ns-and-matching/listing-18-29/src/main.rs → ...ns-and-matching/listing-19-29/src/main.rs b/...ns-and-matching/listing-18-29/src/main.rs → ...ns-and-matching/listing-19-29/src/main.rs
diff --git a/...atching/no-listing-01-literals/Cargo.lock → ...atching/no-listing-01-literals/Cargo.lock b/...atching/no-listing-01-literals/Cargo.lock → ...atching/no-listing-01-literals/Cargo.lock
diff --git a/...atching/no-listing-01-literals/Cargo.toml → ...atching/no-listing-01-literals/Cargo.toml b/...atching/no-listing-01-literals/Cargo.toml → ...atching/no-listing-01-literals/Cargo.toml
diff --git a/...tching/no-listing-01-literals/src/main.rs → ...tching/no-listing-01-literals/src/main.rs b/...tching/no-listing-01-literals/src/main.rs → ...tching/no-listing-01-literals/src/main.rs
diff --git a/...o-listing-02-multiple-patterns/Cargo.lock → ...o-listing-02-multiple-patterns/Cargo.lock b/...o-listing-02-multiple-patterns/Cargo.lock → ...o-listing-02-multiple-patterns/Cargo.lock
diff --git a/...o-listing-02-multiple-patterns/Cargo.toml → ...o-listing-02-multiple-patterns/Cargo.toml b/...o-listing-02-multiple-patterns/Cargo.toml → ...o-listing-02-multiple-patterns/Cargo.toml
diff --git a/...-listing-02-multiple-patterns/src/main.rs → ...-listing-02-multiple-patterns/src/main.rs b/...-listing-02-multiple-patterns/src/main.rs → ...-listing-02-multiple-patterns/src/main.rs
diff --git a/...-matching/no-listing-03-ranges/Cargo.lock → ...-matching/no-listing-03-ranges/Cargo.lock b/...-matching/no-listing-03-ranges/Cargo.lock → ...-matching/no-listing-03-ranges/Cargo.lock
diff --git a/...-matching/no-listing-03-ranges/Cargo.toml → ...-matching/no-listing-03-ranges/Cargo.toml b/...-matching/no-listing-03-ranges/Cargo.toml → ...-matching/no-listing-03-ranges/Cargo.toml
diff --git a/...matching/no-listing-03-ranges/src/main.rs → ...matching/no-listing-03-ranges/src/main.rs b/...matching/no-listing-03-ranges/src/main.rs → ...matching/no-listing-03-ranges/src/main.rs
diff --git a/...g/no-listing-04-ranges-of-char/Cargo.lock → ...g/no-listing-04-ranges-of-char/Cargo.lock b/...g/no-listing-04-ranges-of-char/Cargo.lock → ...g/no-listing-04-ranges-of-char/Cargo.lock
diff --git a/...g/no-listing-04-ranges-of-char/Cargo.toml → ...g/no-listing-04-ranges-of-char/Cargo.toml b/...g/no-listing-04-ranges-of-char/Cargo.toml → ...g/no-listing-04-ranges-of-char/Cargo.toml
diff --git a/.../no-listing-04-ranges-of-char/src/main.rs → .../no-listing-04-ranges-of-char/src/main.rs b/.../no-listing-04-ranges-of-char/src/main.rs → .../no-listing-04-ranges-of-char/src/main.rs
diff --git a/...structuring-structs-and-tuples/Cargo.lock → ...structuring-structs-and-tuples/Cargo.lock b/...structuring-structs-and-tuples/Cargo.lock → ...structuring-structs-and-tuples/Cargo.lock
diff --git a/...structuring-structs-and-tuples/Cargo.toml → ...structuring-structs-and-tuples/Cargo.toml b/...structuring-structs-and-tuples/Cargo.toml → ...structuring-structs-and-tuples/Cargo.toml
diff --git a/...tructuring-structs-and-tuples/src/main.rs → ...tructuring-structs-and-tuples/src/main.rs b/...tructuring-structs-and-tuples/src/main.rs → ...tructuring-structs-and-tuples/src/main.rs
diff --git a/...dvanced-features/listing-19-01/Cargo.lock → ...dvanced-features/listing-20-01/Cargo.lock b/...dvanced-features/listing-19-01/Cargo.lock → ...dvanced-features/listing-20-01/Cargo.lock
diff --git a/...dvanced-features/listing-19-01/Cargo.toml → ...dvanced-features/listing-20-01/Cargo.toml b/...dvanced-features/listing-19-01/Cargo.toml → ...dvanced-features/listing-20-01/Cargo.toml
diff --git a/...vanced-features/listing-19-01/src/main.rs → ...vanced-features/listing-20-01/src/main.rs b/...vanced-features/listing-19-01/src/main.rs → ...vanced-features/listing-20-01/src/main.rs
diff --git a/...dvanced-features/listing-19-02/Cargo.lock → ...dvanced-features/listing-20-02/Cargo.lock b/...dvanced-features/listing-19-02/Cargo.lock → ...dvanced-features/listing-20-02/Cargo.lock
diff --git a/...dvanced-features/listing-19-02/Cargo.toml → ...dvanced-features/listing-20-02/Cargo.toml b/...dvanced-features/listing-19-02/Cargo.toml → ...dvanced-features/listing-20-02/Cargo.toml
diff --git a/...vanced-features/listing-19-02/src/main.rs → ...vanced-features/listing-20-02/src/main.rs b/...vanced-features/listing-19-02/src/main.rs → ...vanced-features/listing-20-02/src/main.rs
diff --git a/...dvanced-features/listing-19-03/Cargo.lock → ...dvanced-features/listing-20-03/Cargo.lock b/...dvanced-features/listing-19-03/Cargo.lock → ...dvanced-features/listing-20-03/Cargo.lock
diff --git a/...dvanced-features/listing-19-03/Cargo.toml → ...dvanced-features/listing-20-03/Cargo.toml b/...dvanced-features/listing-19-03/Cargo.toml → ...dvanced-features/listing-20-03/Cargo.toml
diff --git a/...vanced-features/listing-19-03/src/main.rs → ...vanced-features/listing-20-03/src/main.rs b/...vanced-features/listing-19-03/src/main.rs → ...vanced-features/listing-20-03/src/main.rs
diff --git a/...dvanced-features/listing-19-04/Cargo.lock → ...dvanced-features/listing-20-04/Cargo.lock b/...dvanced-features/listing-19-04/Cargo.lock → ...dvanced-features/listing-20-04/Cargo.lock
diff --git a/...dvanced-features/listing-19-04/Cargo.toml → ...dvanced-features/listing-20-04/Cargo.toml b/...dvanced-features/listing-19-04/Cargo.toml → ...dvanced-features/listing-20-04/Cargo.toml
diff --git a/...vanced-features/listing-19-04/src/main.rs → ...vanced-features/listing-20-04/src/main.rs b/...vanced-features/listing-19-04/src/main.rs → ...vanced-features/listing-20-04/src/main.rs
diff --git a/...dvanced-features/listing-19-05/Cargo.lock → ...dvanced-features/listing-20-05/Cargo.lock b/...dvanced-features/listing-19-05/Cargo.lock → ...dvanced-features/listing-20-05/Cargo.lock
diff --git a/...dvanced-features/listing-19-05/Cargo.toml → ...dvanced-features/listing-20-05/Cargo.toml b/...dvanced-features/listing-19-05/Cargo.toml → ...dvanced-features/listing-20-05/Cargo.toml
diff --git a/...dvanced-features/listing-19-05/output.txt → ...dvanced-features/listing-20-05/output.txt b/...dvanced-features/listing-19-05/output.txt → ...dvanced-features/listing-20-05/output.txt
diff --git a/...vanced-features/listing-19-05/src/main.rs → ...vanced-features/listing-20-05/src/main.rs b/...vanced-features/listing-19-05/src/main.rs → ...vanced-features/listing-20-05/src/main.rs
diff --git a/...dvanced-features/listing-19-06/Cargo.lock → ...dvanced-features/listing-20-06/Cargo.lock b/...dvanced-features/listing-19-06/Cargo.lock → ...dvanced-features/listing-20-06/Cargo.lock
diff --git a/...dvanced-features/listing-19-06/Cargo.toml → ...dvanced-features/listing-20-06/Cargo.toml b/...dvanced-features/listing-19-06/Cargo.toml → ...dvanced-features/listing-20-06/Cargo.toml
diff --git a/...vanced-features/listing-19-06/src/main.rs → ...vanced-features/listing-20-06/src/main.rs b/...vanced-features/listing-19-06/src/main.rs → ...vanced-features/listing-20-06/src/main.rs
diff --git a/...dvanced-features/listing-19-07/Cargo.lock → ...dvanced-features/listing-20-07/Cargo.lock b/...dvanced-features/listing-19-07/Cargo.lock → ...dvanced-features/listing-20-07/Cargo.lock
diff --git a/...dvanced-features/listing-19-07/Cargo.toml → ...dvanced-features/listing-20-07/Cargo.toml b/...dvanced-features/listing-19-07/Cargo.toml → ...dvanced-features/listing-20-07/Cargo.toml
diff --git a/...vanced-features/listing-19-07/src/main.rs → ...vanced-features/listing-20-07/src/main.rs b/...vanced-features/listing-19-07/src/main.rs → ...vanced-features/listing-20-07/src/main.rs
diff --git a/...dvanced-features/listing-19-08/Cargo.lock → ...dvanced-features/listing-20-08/Cargo.lock b/...dvanced-features/listing-19-08/Cargo.lock → ...dvanced-features/listing-20-08/Cargo.lock
diff --git a/...dvanced-features/listing-19-08/Cargo.toml → ...dvanced-features/listing-20-08/Cargo.toml b/...dvanced-features/listing-19-08/Cargo.toml → ...dvanced-features/listing-20-08/Cargo.toml
diff --git a/...vanced-features/listing-19-08/src/main.rs → ...vanced-features/listing-20-08/src/main.rs b/...vanced-features/listing-19-08/src/main.rs → ...vanced-features/listing-20-08/src/main.rs
diff --git a/...dvanced-features/listing-19-09/Cargo.lock → ...dvanced-features/listing-20-09/Cargo.lock b/...dvanced-features/listing-19-09/Cargo.lock → ...dvanced-features/listing-20-09/Cargo.lock
diff --git a/...dvanced-features/listing-19-09/Cargo.toml → ...dvanced-features/listing-20-09/Cargo.toml b/...dvanced-features/listing-19-09/Cargo.toml → ...dvanced-features/listing-20-09/Cargo.toml
diff --git a/...vanced-features/listing-19-09/src/main.rs → ...vanced-features/listing-20-09/src/main.rs b/...vanced-features/listing-19-09/src/main.rs → ...vanced-features/listing-20-09/src/main.rs
diff --git a/...dvanced-features/listing-19-10/Cargo.lock → ...dvanced-features/listing-20-10/Cargo.lock b/...dvanced-features/listing-19-10/Cargo.lock → ...dvanced-features/listing-20-10/Cargo.lock
diff --git a/...dvanced-features/listing-19-10/Cargo.toml → ...dvanced-features/listing-20-10/Cargo.toml b/...dvanced-features/listing-19-10/Cargo.toml → ...dvanced-features/listing-20-10/Cargo.toml
diff --git a/...vanced-features/listing-19-10/src/main.rs → ...vanced-features/listing-20-10/src/main.rs b/...vanced-features/listing-19-10/src/main.rs → ...vanced-features/listing-20-10/src/main.rs
diff --git a/...dvanced-features/listing-19-11/Cargo.lock → ...dvanced-features/listing-20-11/Cargo.lock b/...dvanced-features/listing-19-11/Cargo.lock → ...dvanced-features/listing-20-11/Cargo.lock
diff --git a/...dvanced-features/listing-19-11/Cargo.toml → ...dvanced-features/listing-20-11/Cargo.toml b/...dvanced-features/listing-19-11/Cargo.toml → ...dvanced-features/listing-20-11/Cargo.toml
diff --git a/...vanced-features/listing-19-11/src/main.rs → ...vanced-features/listing-20-11/src/main.rs b/...vanced-features/listing-19-11/src/main.rs → ...vanced-features/listing-20-11/src/main.rs
diff --git a/...dvanced-features/listing-19-12/Cargo.lock → ...dvanced-features/listing-20-12/Cargo.lock b/...dvanced-features/listing-19-12/Cargo.lock → ...dvanced-features/listing-20-12/Cargo.lock
diff --git a/...dvanced-features/listing-19-12/Cargo.toml → ...dvanced-features/listing-20-12/Cargo.toml b/...dvanced-features/listing-19-12/Cargo.toml → ...dvanced-features/listing-20-12/Cargo.toml
diff --git a/...dvanced-features/listing-19-12/src/lib.rs → ...dvanced-features/listing-20-12/src/lib.rs b/...dvanced-features/listing-19-12/src/lib.rs → ...dvanced-features/listing-20-12/src/lib.rs
diff --git a/...dvanced-features/listing-19-13/Cargo.lock → ...dvanced-features/listing-20-13/Cargo.lock b/...dvanced-features/listing-19-13/Cargo.lock → ...dvanced-features/listing-20-13/Cargo.lock
diff --git a/...dvanced-features/listing-19-13/Cargo.toml → ...dvanced-features/listing-20-13/Cargo.toml b/...dvanced-features/listing-19-13/Cargo.toml → ...dvanced-features/listing-20-13/Cargo.toml
diff --git a/...dvanced-features/listing-19-13/src/lib.rs → ...dvanced-features/listing-20-13/src/lib.rs b/...dvanced-features/listing-19-13/src/lib.rs → ...dvanced-features/listing-20-13/src/lib.rs
diff --git a/...dvanced-features/listing-19-14/Cargo.lock → ...dvanced-features/listing-20-14/Cargo.lock b/...dvanced-features/listing-19-14/Cargo.lock → ...dvanced-features/listing-20-14/Cargo.lock
diff --git a/...dvanced-features/listing-19-14/Cargo.toml → ...dvanced-features/listing-20-14/Cargo.toml b/...dvanced-features/listing-19-14/Cargo.toml → ...dvanced-features/listing-20-14/Cargo.toml
diff --git a/...vanced-features/listing-19-14/src/main.rs → ...vanced-features/listing-20-14/src/main.rs b/...vanced-features/listing-19-14/src/main.rs → ...vanced-features/listing-20-14/src/main.rs
diff --git a/...dvanced-features/listing-19-15/Cargo.lock → ...dvanced-features/listing-20-15/Cargo.lock b/...dvanced-features/listing-19-15/Cargo.lock → ...dvanced-features/listing-20-15/Cargo.lock
diff --git a/...dvanced-features/listing-19-15/Cargo.toml → ...dvanced-features/listing-20-15/Cargo.toml b/...dvanced-features/listing-19-15/Cargo.toml → ...dvanced-features/listing-20-15/Cargo.toml
diff --git a/...dvanced-features/listing-19-15/src/lib.rs → ...dvanced-features/listing-20-15/src/lib.rs b/...dvanced-features/listing-19-15/src/lib.rs → ...dvanced-features/listing-20-15/src/lib.rs
diff --git a/...dvanced-features/listing-19-16/Cargo.lock → ...dvanced-features/listing-20-16/Cargo.lock b/...dvanced-features/listing-19-16/Cargo.lock → ...dvanced-features/listing-20-16/Cargo.lock
diff --git a/...dvanced-features/listing-19-16/Cargo.toml → ...dvanced-features/listing-20-16/Cargo.toml b/...dvanced-features/listing-19-16/Cargo.toml → ...dvanced-features/listing-20-16/Cargo.toml
diff --git a/...vanced-features/listing-19-16/src/main.rs → ...vanced-features/listing-20-16/src/main.rs b/...vanced-features/listing-19-16/src/main.rs → ...vanced-features/listing-20-16/src/main.rs
diff --git a/...dvanced-features/listing-19-17/Cargo.lock → ...dvanced-features/listing-20-17/Cargo.lock b/...dvanced-features/listing-19-17/Cargo.lock → ...dvanced-features/listing-20-17/Cargo.lock
diff --git a/...dvanced-features/listing-19-17/Cargo.toml → ...dvanced-features/listing-20-17/Cargo.toml b/...dvanced-features/listing-19-17/Cargo.toml → ...dvanced-features/listing-20-17/Cargo.toml
diff --git a/...vanced-features/listing-19-17/src/main.rs → ...vanced-features/listing-20-17/src/main.rs b/...vanced-features/listing-19-17/src/main.rs → ...vanced-features/listing-20-17/src/main.rs
diff --git a/...dvanced-features/listing-19-18/Cargo.lock → ...dvanced-features/listing-20-18/Cargo.lock b/...dvanced-features/listing-19-18/Cargo.lock → ...dvanced-features/listing-20-18/Cargo.lock
diff --git a/...dvanced-features/listing-19-18/Cargo.toml → ...dvanced-features/listing-20-18/Cargo.toml b/...dvanced-features/listing-19-18/Cargo.toml → ...dvanced-features/listing-20-18/Cargo.toml
diff --git a/...dvanced-features/listing-19-18/output.txt → ...dvanced-features/listing-20-18/output.txt b/...dvanced-features/listing-19-18/output.txt → ...dvanced-features/listing-20-18/output.txt
diff --git a/...vanced-features/listing-19-18/src/main.rs → ...vanced-features/listing-20-18/src/main.rs b/...vanced-features/listing-19-18/src/main.rs → ...vanced-features/listing-20-18/src/main.rs
diff --git a/...dvanced-features/listing-19-19/Cargo.lock → ...dvanced-features/listing-20-19/Cargo.lock b/...dvanced-features/listing-19-19/Cargo.lock → ...dvanced-features/listing-20-19/Cargo.lock
diff --git a/...dvanced-features/listing-19-19/Cargo.toml → ...dvanced-features/listing-20-19/Cargo.toml b/...dvanced-features/listing-19-19/Cargo.toml → ...dvanced-features/listing-20-19/Cargo.toml
diff --git a/...dvanced-features/listing-19-19/output.txt → ...dvanced-features/listing-20-19/output.txt b/...dvanced-features/listing-19-19/output.txt → ...dvanced-features/listing-20-19/output.txt
diff --git a/...vanced-features/listing-19-19/src/main.rs → ...vanced-features/listing-20-19/src/main.rs b/...vanced-features/listing-19-19/src/main.rs → ...vanced-features/listing-20-19/src/main.rs
diff --git a/...dvanced-features/listing-19-20/Cargo.lock → ...dvanced-features/listing-20-20/Cargo.lock b/...dvanced-features/listing-19-20/Cargo.lock → ...dvanced-features/listing-20-20/Cargo.lock
diff --git a/...dvanced-features/listing-19-20/Cargo.toml → ...dvanced-features/listing-20-20/Cargo.toml b/...dvanced-features/listing-19-20/Cargo.toml → ...dvanced-features/listing-20-20/Cargo.toml
diff --git a/...dvanced-features/listing-19-20/output.txt → ...dvanced-features/listing-20-20/output.txt b/...dvanced-features/listing-19-20/output.txt → ...dvanced-features/listing-20-20/output.txt
diff --git a/...vanced-features/listing-19-20/src/main.rs → ...vanced-features/listing-20-20/src/main.rs b/...vanced-features/listing-19-20/src/main.rs → ...vanced-features/listing-20-20/src/main.rs
diff --git a/...dvanced-features/listing-19-21/Cargo.lock → ...dvanced-features/listing-20-21/Cargo.lock b/...dvanced-features/listing-19-21/Cargo.lock → ...dvanced-features/listing-20-21/Cargo.lock
diff --git a/...dvanced-features/listing-19-21/Cargo.toml → ...dvanced-features/listing-20-21/Cargo.toml b/...dvanced-features/listing-19-21/Cargo.toml → ...dvanced-features/listing-20-21/Cargo.toml
diff --git a/...dvanced-features/listing-19-21/output.txt → ...dvanced-features/listing-20-21/output.txt b/...dvanced-features/listing-19-21/output.txt → ...dvanced-features/listing-20-21/output.txt
diff --git a/...vanced-features/listing-19-21/src/main.rs → ...vanced-features/listing-20-21/src/main.rs b/...vanced-features/listing-19-21/src/main.rs → ...vanced-features/listing-20-21/src/main.rs
diff --git a/...dvanced-features/listing-19-22/Cargo.lock → ...dvanced-features/listing-20-22/Cargo.lock b/...dvanced-features/listing-19-22/Cargo.lock → ...dvanced-features/listing-20-22/Cargo.lock
diff --git a/...dvanced-features/listing-19-22/Cargo.toml → ...dvanced-features/listing-20-22/Cargo.toml b/...dvanced-features/listing-19-22/Cargo.toml → ...dvanced-features/listing-20-22/Cargo.toml
diff --git a/...vanced-features/listing-19-22/src/main.rs → ...vanced-features/listing-20-22/src/main.rs b/...vanced-features/listing-19-22/src/main.rs → ...vanced-features/listing-20-22/src/main.rs
diff --git a/...dvanced-features/listing-19-23/Cargo.lock → ...dvanced-features/listing-20-23/Cargo.lock b/...dvanced-features/listing-19-23/Cargo.lock → ...dvanced-features/listing-20-23/Cargo.lock
diff --git a/...dvanced-features/listing-19-23/Cargo.toml → ...dvanced-features/listing-20-23/Cargo.toml b/...dvanced-features/listing-19-23/Cargo.toml → ...dvanced-features/listing-20-23/Cargo.toml
diff --git a/...vanced-features/listing-19-23/src/main.rs → ...vanced-features/listing-20-23/src/main.rs b/...vanced-features/listing-19-23/src/main.rs → ...vanced-features/listing-20-23/src/main.rs
diff --git a/...dvanced-features/listing-19-24/Cargo.lock → ...dvanced-features/listing-20-24/Cargo.lock b/...dvanced-features/listing-19-24/Cargo.lock → ...dvanced-features/listing-20-24/Cargo.lock
diff --git a/...dvanced-features/listing-19-24/Cargo.toml → ...dvanced-features/listing-20-24/Cargo.toml b/...dvanced-features/listing-19-24/Cargo.toml → ...dvanced-features/listing-20-24/Cargo.toml
diff --git a/...vanced-features/listing-19-24/src/main.rs → ...vanced-features/listing-20-24/src/main.rs b/...vanced-features/listing-19-24/src/main.rs → ...vanced-features/listing-20-24/src/main.rs
diff --git a/...dvanced-features/listing-19-25/Cargo.lock → ...dvanced-features/listing-20-25/Cargo.lock b/...dvanced-features/listing-19-25/Cargo.lock → ...dvanced-features/listing-20-25/Cargo.lock
diff --git a/...dvanced-features/listing-19-25/Cargo.toml → ...dvanced-features/listing-20-25/Cargo.toml b/...dvanced-features/listing-19-25/Cargo.toml → ...dvanced-features/listing-20-25/Cargo.toml
diff --git a/...vanced-features/listing-19-25/src/main.rs → ...vanced-features/listing-20-25/src/main.rs b/...vanced-features/listing-19-25/src/main.rs → ...vanced-features/listing-20-25/src/main.rs
diff --git a/...dvanced-features/listing-19-27/Cargo.lock → ...dvanced-features/listing-20-27/Cargo.lock b/...dvanced-features/listing-19-27/Cargo.lock → ...dvanced-features/listing-20-27/Cargo.lock
diff --git a/...dvanced-features/listing-19-27/Cargo.toml → ...dvanced-features/listing-20-27/Cargo.toml b/...dvanced-features/listing-19-27/Cargo.toml → ...dvanced-features/listing-20-27/Cargo.toml
diff --git a/...vanced-features/listing-19-27/src/main.rs → ...vanced-features/listing-20-27/src/main.rs b/...vanced-features/listing-19-27/src/main.rs → ...vanced-features/listing-20-27/src/main.rs
diff --git a/...dvanced-features/listing-19-28/Cargo.lock → ...dvanced-features/listing-20-28/Cargo.lock b/...dvanced-features/listing-19-28/Cargo.lock → ...dvanced-features/listing-20-28/Cargo.lock
diff --git a/...dvanced-features/listing-19-28/Cargo.toml → ...dvanced-features/listing-20-28/Cargo.toml b/...dvanced-features/listing-19-28/Cargo.toml → ...dvanced-features/listing-20-28/Cargo.toml
diff --git a/...dvanced-features/listing-19-28/src/lib.rs → ...dvanced-features/listing-20-28/src/lib.rs b/...dvanced-features/listing-19-28/src/lib.rs → ...dvanced-features/listing-20-28/src/lib.rs
diff --git a/...dvanced-features/listing-19-30/Cargo.lock → ...dvanced-features/listing-20-30/Cargo.lock b/...dvanced-features/listing-19-30/Cargo.lock → ...dvanced-features/listing-20-30/Cargo.lock