Update Rust toolchain and fix new clippy issues (#64)

warning: single-character string constant used as pattern.

.github/workflows/ci.yml

@@ -7,31 +7,31 @@ env:
 jobs:
  build_and_test:
  runs-on: ubuntu-20.04
- container: rnestler/archlinux-rust:1.58.0
+ container: rnestler/archlinux-rust:1.60.0
  steps:
  - uses: actions/checkout@v2
  - run: cargo build
  - run: cargo test
 
  lint:
  runs-on: ubuntu-20.04
- container: rnestler/archlinux-rust:1.58.0
+ container: rnestler/archlinux-rust:1.60.0
  steps:
  - uses: actions/checkout@v2
  - run: rustup component add clippy
  - run: cargo clippy --all-targets --all-features -- -D warnings
 
  fmt:
  runs-on: ubuntu-20.04
- container: rnestler/archlinux-rust:1.58.0
+ container: rnestler/archlinux-rust:1.60.0
  steps:
  - uses: actions/checkout@v2
  - run: rustup component add rustfmt
  - run: cargo fmt -- --check
 
  audit:
  runs-on: ubuntu-20.04
- container: rnestler/archlinux-rust:1.58.0
+ container: rnestler/archlinux-rust:1.60.0
  steps:
  - uses: actions/checkout@v2
  - run: pacman --noconfirm -Sy cargo-audit

src/main.rs

@@ -53,7 +53,7 @@ impl PackageInfo {
  }
  version += remaining;
 
- Some(version.replace("-", "."))
+ Some(version.replace('-', "."))
  }
 
  /// Return a string representing the "time ago" when this package was
@@ -99,12 +99,12 @@ impl KernelInfo {
  // if the last part is text it is a kernel variant
  if last_part.chars().all(char::is_alphabetic) {
  Some(KernelInfo {
- version: uname_output[0..last_dash].replace("-", "."),
+ version: uname_output[0..last_dash].replace('-', "."),
  variant: Some(last_part.to_string()),
  })
  } else {
  Some(KernelInfo {
- version: uname_output.replace("-", "."),
+ version: uname_output.replace('-', "."),
  variant: None,
  })
  }