feat: added style check to CI && rustfmt.toml

.github/workflows/main.yml

@@ -36,6 +36,11 @@ jobs:
         uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ matrix.toolchain }}
+          components: rustfmt
+
+      - name: Style check
+        if: matrix.toolchain == 'nightly'
+        run: cargo fmt --all --check
 
       - name: Cargo build
         run: cargo build --verbose

benches/bench.rs

@@ -3,8 +3,10 @@
 
 extern crate test;
 
-use self::test::Bencher;
-use smallvec::{ExtendFromSlice, smallvec, SmallVec};
+use {
+    self::test::Bencher,
+    smallvec::{smallvec, ExtendFromSlice, SmallVec},
+};
 
 const VEC_SIZE: usize = 16;
 const SPILLED_SIZE: usize = 100;

rustfmt.toml

@@ -0,0 +1,4 @@
+wrap_comments = true
+imports_granularity = "Preserve"
+group_imports = "One"
+format_code_in_doc_comments = true

src/arbitrary.rs

@@ -1,5 +1,7 @@
-use crate::{Array, SmallVec};
-use arbitrary::{Arbitrary, Unstructured};
+use {
+    crate::{Array, SmallVec},
+    arbitrary::{Arbitrary, Unstructured},
+};
 
 impl<'a, A: Array> Arbitrary<'a> for SmallVec<A>
 where