From 854ef3852b9fc2ab676569357e240e8f8dbf361f Mon Sep 17 00:00:00 2001
From: Marshall Pierce <575695+marshallpierce@users.noreply.github.com>
Date: Sun, 27 Nov 2022 09:37:55 -0700
Subject: [PATCH] Update MSRV and criterion

---
 .circleci/config.yml | 2 +-
 Cargo.toml           | 5 +++--
 README.md            | 2 +-
 RELEASE-NOTES.md     | 2 +-
 clippy.toml          | 2 +-
 5 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 1a0c76f..fa98f9c 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -14,7 +14,7 @@ workflows:
                 # be easier on the CI hosts since presumably those fat lower layers will already be cached, and
                 # therefore faster than a minimal, customized alpine.
                 # MSRV
-                'rust:1.51.0'
+                'rust:1.57.0'
               ]
               # a hacky scheme to work around CircleCI's inability to deal with mutable docker tags, forcing us to
               # get a nightly or stable toolchain via rustup instead of a mutable docker tag
diff --git a/Cargo.toml b/Cargo.toml
index 9592b7c..06fdd5c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,15 +10,16 @@ keywords = ["base64", "utf8", "encode", "decode", "no_std"]
 categories = ["encoding"]
 license = "MIT OR Apache-2.0"
 edition = "2018"
-rust-version = "1.51.0"
+rust-version = "1.57.0"
 
 [[bench]]
 name = "benchmarks"
 harness = false
 
 [dev-dependencies]
-criterion = "0.3.5"
+criterion = "0.4.0"
 rand = { version = "0.8.5", features = ["small_rng"] }
+# clap 4 would require 1.60
 structopt = "0.3.26"
 # test fixtures for engine tests
 rstest = "0.12.0"
diff --git a/README.md b/README.md
index f48a201..b6cf608 100644
--- a/README.md
+++ b/README.md
@@ -45,7 +45,7 @@ If you have a `Read` (e.g. reading a file or network socket), there are various
 
 ## Rust version compatibility
 
-The minimum required Rust version is 1.51.0.
+The minimum required Rust version is 1.57.0.
 
 # Contributing
 
diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md
index eaf84dc..7d8f04f 100644
--- a/RELEASE-NOTES.md
+++ b/RELEASE-NOTES.md
@@ -2,7 +2,7 @@
 
 ## Next
 
-- MSRV is now 1.51.0 to keep up with `criterion`
+- Update MSRV to 1.57.0
 
 ## 0.20.0-alpha.1
 
diff --git a/clippy.toml b/clippy.toml
index 434e968..23b32c1 100644
--- a/clippy.toml
+++ b/clippy.toml
@@ -1 +1 @@
-msrv = "1.51.0"
+msrv = "1.57.0"