Update minimum Rust version to 1.27

.travis.yml

@@ -29,18 +29,18 @@ matrix:
         - TARGET=aarch64-unknown-linux-gnu
         - CC_aarch64-unknown-linux-gnu=/usr/bin/aarch64-linux-gnu-gcc-4.8
         - CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER=aarch64-linux-gnu-gcc-4.8
-        
+
     # Minimum Rust supported channel.
     - os: linux
-      rust: 1.26.0
+      rust: 1.27.0
       env: TARGET=x86_64-unknown-linux-gnu
     - os: linux
-      rust: 1.26.0
+      rust: 1.27.0
       env:
         - TARGET=x86_64-unknown-linux-musl
         - CC_x86_64_unknown_linux_musl=/usr/bin/musl-gcc
     - os: osx
-      rust: 1.26.0
+      rust: 1.27.0
       env: TARGET=x86_64-apple-darwin
 
     # Code formatting check

Cargo.toml

@@ -47,4 +47,4 @@ features = []
 tempdir = "0.3"
 
 [build-dependencies]
-clap = "2.32"
+clap = "2.32"

README.md

@@ -173,7 +173,7 @@ releases page.
 
 ### From source
 
-If you want to build `bat` from source, you need Rust 1.26 or
+If you want to build `bat` from source, you need Rust 1.27 or
 higher. You can then use `cargo` to build everything:
 
 ```bash