Bump minimum required rust version

.travis.yml

@@ -20,15 +20,15 @@ matrix:
 
     # Minimum Rust supported channel.
     - os: linux
-      rust: 1.24.0
+      rust: 1.26.0
       env: TARGET=x86_64-unknown-linux-gnu
     - os: linux
-      rust: 1.24.0
+      rust: 1.26.0
       env:
         - TARGET=x86_64-unknown-linux-musl
         - CC_x86_64_unknown_linux_musl=/usr/bin/musl-gcc
     - os: osx
-      rust: 1.24.0
+      rust: 1.26.0
       env: TARGET=x86_64-apple-darwin
 
     # Code formatting check

README.md

@@ -114,7 +114,7 @@ brew install bat
 
 ### From source
 
-If you want to build to compile `bat` from source, you need Rust 1.24 or
+If you want to build to compile `bat` from source, you need Rust 1.26 or
 higher. You can then use `cargo` to build everything:
 
 ```bash