error[E0532]: expected a pattern, found a function call --> $DIR/vec-macro-in-pattern.rs:7:14 | LL | Some(vec![43]) => {} | ^^^^^^^^ not a tuple struct or tuple variant | = note: function calls are not allowed in patterns: = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0658]: usage of qualified paths in this context is experimental --> $DIR/vec-macro-in-pattern.rs:7:14 | LL | Some(vec![43]) => {} | ^^^^^^^^ | = note: see issue #86935 for more information = help: add `#![feature(more_qualified_paths)]` to the crate attributes to enable = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0164]: expected tuple struct or tuple variant, found associated function `<[_]>::into_vec` --> $DIR/vec-macro-in-pattern.rs:7:14 | LL | Some(vec![43]) => {} | ^^^^^^^^ `fn` calls are not allowed in patterns | = help: for more information, visit https://doc.rust-lang.org/book/ch19-00-patterns.html = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to 3 previous errors Some errors have detailed explanations: E0164, E0532, E0658. For more information about an error, try `rustc --explain E0164`.