Replace the unmaintained memmap crate with memmap2 (#300)

Cargo.toml

@@ -1,7 +1,10 @@
 [package]
 name = "object"
 version = "0.24.0"
-authors = ["Nick Fitzgerald <fitzgen@gmail.com>", "Philip Craig <philipjcraig@gmail.com>"]
+authors = [
+    "Nick Fitzgerald <fitzgen@gmail.com>",
+    "Philip Craig <philipjcraig@gmail.com>",
+]
 edition = "2018"
 exclude = ["/.coveralls.yml", "/.travis.yml"]
 keywords = ["object", "elf", "mach-o", "pe", "coff"]
@@ -26,7 +29,7 @@ compiler_builtins = { version = '0.1.2', optional = true }
 alloc = { version = '1.0.0', optional = true, package = 'rustc-std-workspace-alloc' }
 
 [dev-dependencies]
-memmap = "0.7"
+memmap2 = "0.2.2"
 
 [features]
 #=======================================

examples/ar.rs

@@ -20,7 +20,7 @@ fn main() {
             return;
         }
     };
-    let file = match unsafe { memmap::Mmap::map(&file) } {
+    let file = match unsafe { memmap2::Mmap::map(&file) } {
         Ok(mmap) => mmap,
         Err(err) => {
             println!("Failed to map file '{}': {}", file_path, err,);

examples/nm.rs

@@ -25,7 +25,7 @@ fn main() {
                 continue;
             }
         };
-        let file = match unsafe { memmap::Mmap::map(&file) } {
+        let file = match unsafe { memmap2::Mmap::map(&file) } {
             Ok(mmap) => mmap,
             Err(err) => {
                 println!("Failed to map file '{}': {}", file_path, err,);

examples/objcopy.rs

@@ -24,7 +24,7 @@ fn main() {
             process::exit(1);
         }
     };
-    let in_file = match unsafe { memmap::Mmap::map(&in_file) } {
+    let in_file = match unsafe { memmap2::Mmap::map(&in_file) } {
         Ok(mmap) => mmap,
         Err(err) => {
             eprintln!("Failed to map file '{}': {}", in_file_path, err,);

examples/objdump.rs

@@ -23,7 +23,7 @@ fn main() {
                 continue;
             }
         };
-        let file = match unsafe { memmap::Mmap::map(&file) } {
+        let file = match unsafe { memmap2::Mmap::map(&file) } {
             Ok(mmap) => mmap,
             Err(err) => {
                 println!("Failed to map file '{}': {}", file_path, err,);

examples/objectmap.rs

@@ -19,7 +19,7 @@ fn main() {
             process::exit(1);
         }
     };
-    let file = match unsafe { memmap::Mmap::map(&file) } {
+    let file = match unsafe { memmap2::Mmap::map(&file) } {
         Ok(mmap) => mmap,
         Err(err) => {
             println!("Failed to map file '{}': {}", file_path, err,);

examples/readobj.rs

@@ -27,7 +27,7 @@ fn main() {
                 continue;
             }
         };
-        let file = match unsafe { memmap::Mmap::map(&file) } {
+        let file = match unsafe { memmap2::Mmap::map(&file) } {
             Ok(mmap) => mmap,
             Err(err) => {
                 println!("Failed to map file '{}': {}", file_path, err);