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error: expected type, found `<[_]>::into_vec(#[rustc_box] ::alloc::boxed::Box::new([0, 1]))`
--> $DIR/issue-47666.rs:3:25
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LL | let _ = Option:Some(vec![0, 1]);
| - ^^^^^^^^^^
| | |
| | expected type
| | in this macro invocation
| | this macro call doesn't expand to a type
| help: maybe write a path separator here: `::`
|
= note: `#![feature(type_ascription)]` lets you annotate an expression with a type: `<expr>: <type>`
= note: this error originates in the macro `$crate::__rust_force_expr` which comes from the expansion of the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to previous error
|