Raise MSRV to 1.60

`std::io::ErrorKind` implements `std::fmt::Display` since Rust 1.60.

Author: LehMaxence

.github/bors.toml

@@ -4,5 +4,5 @@ required_approvals = 1
 status = [
   "CI (stable, x86_64-unknown-linux-gnu)",
   "CI (stable, armv7-unknown-linux-gnueabihf)",
-  "CI (1.59.0, x86_64-unknown-linux-gnu)",
+  "CI (1.60.0, x86_64-unknown-linux-gnu)",
 ]

.github/workflows/ci.yml

@@ -21,7 +21,7 @@ jobs:
 
         include:
           # Test MSRV
-          - rust: 1.59.0
+          - rust: 1.60.0
             TARGET: x86_64-unknown-linux-gnu
 
           # Test nightly but don't fail

README.md

@@ -29,7 +29,7 @@ With `default-features = false` you can enable the features `gpio_cdev`, `gpio_s
 
 ## Minimum Supported Rust Version (MSRV)
 
-This crate is guaranteed to compile on stable Rust 1.59.0 and up. It *might*
+This crate is guaranteed to compile on stable Rust 1.60.0 and up. It *might*
 compile with older versions but that may change in any new patch release.
 
 ## License