error: invalid `struct` delimiters or `fn` call arguments --> $DIR/issue-111416.rs:2:14 | LL | let my = monad_bind(mx, T: Try); | ^^^^^^^^^^^^^^^^^^^^^^ | help: if `monad_bind` is a struct, use braces as delimiters | LL | let my = monad_bind { mx, T: Try }; | ~ ~ help: if `monad_bind` is a function, use the arguments directly | LL - let my = monad_bind(mx, T: Try); LL + let my = monad_bind(mx, Try); | error: aborting due to previous error