Introduce Clippy Github Actions

.github/workflows/clippy.yml

@@ -0,0 +1,41 @@
+name: Clippy
+
+on: [push, pull_request]
+
+jobs:
+  linux-clippy:
+   name: Linux
+   runs-on: ubuntu-latest
+   steps:
+     - name: Checkout
+       uses: actions/checkout@v1
+     - name: Install Toolchain
+       uses: actions-rs/toolchain@v1
+       with:
+         components: clippy
+         override: true
+         profile: minimal
+         toolchain: 1.32.0
+     - name: Run `cargo clippy`
+       uses: actions-rs/cargo@v1
+       with:
+         command: clippy
+         args: --features "serde slog std v1 v3 v4 v5" -- -D warnings
+  windows-clippy:
+   name: Windows
+   runs-on: windows-latest
+   steps:
+     - name: Checkout
+       uses: actions/checkout@v1
+     - name: Install Toolchain
+       uses: actions-rs/toolchain@v1
+       with:
+         components: clippy
+         override: true
+         profile: minimal
+         toolchain: 1.32.0
+     - name: Run `cargo clippy`
+       uses: actions-rs/cargo@v1
+       with:
+         command: clippy
+         args: --features "guid serde slog std v1 v3 v4 v5" -- -D warnings

.travis.yml

@@ -34,12 +34,10 @@ matrix:
       - cargo web build --features "v5 wasm-bindgen"
   - rust: stable
     env:
-    - LABEL="clippy + wasm"
+    - LABEL="wasm"
     before_script:
-    - rustup component add clippy-preview
     - rustup target add wasm32-unknown-unknown
     script:
-    - cargo clippy --features "v1 v3 v4 v5 slog"
     - cargo build --target wasm32-unknown-unknown --features "v3 wasm-bindgen"
     - cargo build --target wasm32-unknown-unknown --features "v4 wasm-bindgen"
     - cargo build --target wasm32-unknown-unknown --features "v5 wasm-bindgen"

src/adapter/mod.rs

@@ -138,6 +138,7 @@ const HYPHEN_POSITIONS: [usize; 4] = [8, 13, 18, 23];
 /// The `start` parameter allows writing a prefix (such as
 /// "urn:uuid:") to the buffer that's included in the final encoded
 /// UUID.
+#[allow(clippy::needless_range_loop)]
 fn encode<'a>(
     full_buffer: &'a mut [u8],
     start: usize,

src/builder/mod.rs

@@ -467,8 +467,6 @@ impl Builder {
     ///
     /// [`Uuid`]: struct.Uuid.html
     pub fn build(&mut self) -> Uuid {
-        let uuid = Uuid::from_bytes(self.0);
-
-        uuid
+        Uuid::from_bytes(self.0)
     }
 }

src/parser/error.rs

@@ -4,6 +4,7 @@ use crate::std::fmt;
 ///
 /// [`Uuid`]: ../struct.Uuid.html
 #[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)]
+#[allow(clippy::enum_variant_names)]
 pub(crate) enum Error {
     /// Invalid character in the [`Uuid`] string.
     ///

src/parser/mod.rs

@@ -33,7 +33,7 @@ fn len_matches_any(len: usize, crits: &[usize]) -> bool {
 /// (inclusive).
 #[allow(dead_code)]
 fn len_matches_range(len: usize, min: usize, max: usize) -> bool {
-    for crit in min..(max + 1) {
+    for crit in min..=max {
         if len == crit {
             return true;
         }

src/v1.rs

@@ -77,7 +77,8 @@ impl Timestamp {
         let counter = context.generate_sequence(seconds, subsec_nanos);
         let ticks = UUID_TICKS_BETWEEN_EPOCHS
             + seconds * 10_000_000
-            + (subsec_nanos as u64 / 100);
+            + u64::from(subsec_nanos) / 100;
+
         Timestamp { ticks, counter }
     }
 
@@ -99,10 +100,10 @@ impl Timestamp {
     /// thus the maximum precision represented by the fractional nanoseconds
     /// value is less than its unit size (100 ns vs. 1 ns).
     pub const fn to_unix(&self) -> (u64, u32) {
-        let unix_ticks = self.ticks - UUID_TICKS_BETWEEN_EPOCHS;
         (
-            unix_ticks / 10_000_000,
-            (unix_ticks % 10_000_000) as u32 * 100,
+            (self.ticks - UUID_TICKS_BETWEEN_EPOCHS) / 10_000_000,
+            ((self.ticks - UUID_TICKS_BETWEEN_EPOCHS) % 10_000_000) as u32
+                * 100,
         )
     }