Format with rustfmt (#389)

* Format with rustfmt

* Add rustfmt check to CI

tests/test_buf_mut.rs

@@ -1,10 +1,10 @@
 #![deny(warnings, rust_2018_idioms)]
 
-use bytes::{BufMut, BytesMut};
 #[cfg(feature = "std")]
 use bytes::buf::IoSliceMut;
-use core::usize;
+use bytes::{BufMut, BytesMut};
 use core::fmt::Write;
+use core::usize;
 
 #[test]
 fn test_vec_as_mut_buf() {

tests/test_bytes.rs

@@ -1,6 +1,6 @@
 #![deny(warnings, rust_2018_idioms)]
 
-use bytes::{Bytes, BytesMut, Buf, BufMut};
+use bytes::{Buf, BufMut, Bytes, BytesMut};
 
 use std::usize;
 
@@ -44,7 +44,6 @@ fn test_layout() {
         mem::size_of::<Option<BytesMut>>(),
         "BytesMut should be same size as Option<BytesMut>",
     );
-
 }
 
 #[test]
@@ -87,13 +86,11 @@ fn fmt_write() {
     write!(a, "{}", &s[..64]).unwrap();
     assert_eq!(a, s[..64].as_bytes());
 
-
     let mut b = BytesMut::with_capacity(64);
     write!(b, "{}", &s[..32]).unwrap();
     write!(b, "{}", &s[32..64]).unwrap();
     assert_eq!(b, s[..64].as_bytes());
 
-
     let mut c = BytesMut::with_capacity(64);
     write!(c, "{}", s).unwrap();
     assert_eq!(c, s[..].as_bytes());
@@ -305,11 +302,13 @@ fn split_off_to_at_gt_len() {
 
     assert!(panic::catch_unwind(move || {
         let _ = make_bytes().split_to(5);
-    }).is_err());
+    })
+    .is_err());
 
     assert!(panic::catch_unwind(move || {
         let _ = make_bytes().split_off(5);
-    }).is_err());
+    })
+    .is_err());
 }
 
 #[test]
@@ -864,7 +863,6 @@ fn slice_ref_works() {
     test_slice_ref(&bytes, 9, 9, b"");
 }
 
-
 #[test]
 fn slice_ref_empty() {
     let bytes = Bytes::from(&b""[..]);

tests/test_bytes_vec_alloc.rs

@@ -39,7 +39,11 @@ unsafe impl GlobalAlloc for Ledger {
             let off_ptr = (ptr as *mut usize).offset(-1);
             let orig_size = off_ptr.read();
             if orig_size != layout.size() {
-                panic!("bad dealloc: alloc size was {}, dealloc size is {}", orig_size, layout.size());
+                panic!(
+                    "bad dealloc: alloc size was {}, dealloc size is {}",
+                    orig_size,
+                    layout.size()
+                );
             }
 
             let new_layout = match Layout::from_size_align(layout.size() + USIZE_SIZE, 1) {

tests/test_chain.rs

@@ -1,7 +1,7 @@
 #![deny(warnings, rust_2018_idioms)]
 
-use bytes::{Buf, BufMut, Bytes};
 use bytes::buf::{BufExt, BufMutExt};
+use bytes::{Buf, BufMut, Bytes};
 #[cfg(feature = "std")]
 use std::io::IoSlice;
 

tests/test_iter.rs

@@ -11,7 +11,6 @@ fn iter_len() {
     assert_eq!(iter.len(), 11);
 }
 
-
 #[test]
 fn empty_iter_len() {
     let buf = Bytes::from_static(b"");

tests/test_reader.rs

@@ -3,7 +3,7 @@
 
 use std::io::{BufRead, Read};
 
-use bytes::buf::{BufExt};
+use bytes::buf::BufExt;
 
 #[test]
 fn read() {

tests/test_serde.rs

@@ -1,7 +1,7 @@
 #![cfg(feature = "serde")]
 #![deny(warnings, rust_2018_idioms)]
 
-use serde_test::{Token, assert_tokens};
+use serde_test::{assert_tokens, Token};
 
 #[test]
 fn test_ser_de_empty() {