error: missing angle brackets in associated item path --> $DIR/issue-89388.rs:5:24 | LL | let _ = option.map([_]::to_vec); | ^^^ | help: types that don't start with an identifier need to be surrounded with angle brackets in qualified paths | LL | let _ = option.map(<[_]>::to_vec); | + + error: aborting due to 1 previous error