trailing comma
trailing comma

Should have actually ran rustfmt on it, rather than attempting to fix it manually
aidancully/rust,graydon/rust,aidancully/rust,aidancully/rust,graydon/rust,aidancully/rust,aidancully/rust,graydon/rust,graydon/rust,graydon/rust,graydon/rust,aidancully/rust