1 error[E0658]: rust-call ABI is subject to change
2 --> $DIR/feature-gate-unboxed-closures.rs:10:12
4 LL | extern "rust-call" fn call_once(self, (a, b): (u32, u32)) -> u32 {
7 = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
8 = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable
10 error[E0658]: the precise format of `Fn`-family traits' type parameters is subject to change
11 --> $DIR/feature-gate-unboxed-closures.rs:5:6
13 LL | impl FnOnce<(u32, u32)> for Test {
14 | ^^^^^^^^^^^^^^^^^^ help: use parenthetical notation instead: `FnOnce(u32, u32) -> ()`
16 = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
17 = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable
19 error[E0183]: manual implementations of `FnOnce` are experimental
20 --> $DIR/feature-gate-unboxed-closures.rs:5:1
22 LL | impl FnOnce<(u32, u32)> for Test {
23 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ manual implementations of `FnOnce` are experimental
25 = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable
27 error: aborting due to 3 previous errors
29 Some errors have detailed explanations: E0183, E0658.
30 For more information about an error, try `rustc --explain E0183`.