error[E0658]: rust-call ABI is subject to change --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:12:12 | LL | extern "rust-call" fn call(self, args: ()) -> () {} | ^^^^^^^^^^^ | = note: see issue #29625 for more information = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable error[E0658]: rust-call ABI is subject to change --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:19:12 | LL | extern "rust-call" fn call_once(self, args: ()) -> () {} | ^^^^^^^^^^^ | = note: see issue #29625 for more information = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable error[E0658]: rust-call ABI is subject to change --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:26:12 | LL | extern "rust-call" fn call_mut(&self, args: ()) -> () {} | ^^^^^^^^^^^ | = note: see issue #29625 for more information = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable error[E0658]: rust-call ABI is subject to change --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:33:12 | LL | extern "rust-call" fn call_once(&self, args: ()) -> () {} | ^^^^^^^^^^^ | = note: see issue #29625 for more information = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable error[E0658]: the precise format of `Fn`-family traits' type parameters is subject to change --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:9:6 | LL | impl Fn<()> for Foo { | ^^^^^^ | = note: see issue #29625 for more information = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable error[E0183]: manual implementations of `Fn` are experimental --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:9:6 | LL | impl Fn<()> for Foo { | ^^^^^^ manual implementations of `Fn` are experimental | = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable error[E0183]: manual implementations of `FnOnce` are experimental --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:16:6 | LL | impl FnOnce() for Foo1 { | ^^^^^^^^ manual implementations of `FnOnce` are experimental | = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable error[E0229]: associated type bindings are not allowed here --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:16:6 | LL | impl FnOnce() for Foo1 { | ^^^^^^^^ associated type not allowed here | help: parenthesized trait syntax expands to `FnOnce<(), Output=()>` --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:16:6 | LL | impl FnOnce() for Foo1 { | ^^^^^^^^ error[E0658]: the precise format of `Fn`-family traits' type parameters is subject to change --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:23:6 | LL | impl FnMut<()> for Bar { | ^^^^^^^^^ | = note: see issue #29625 for more information = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable error[E0183]: manual implementations of `FnMut` are experimental --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:23:6 | LL | impl FnMut<()> for Bar { | ^^^^^^^^^ manual implementations of `FnMut` are experimental | = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable error[E0658]: the precise format of `Fn`-family traits' type parameters is subject to change --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:30:6 | LL | impl FnOnce<()> for Baz { | ^^^^^^^^^^ | = note: see issue #29625 for more information = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable error[E0183]: manual implementations of `FnOnce` are experimental --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:30:6 | LL | impl FnOnce<()> for Baz { | ^^^^^^^^^^ manual implementations of `FnOnce` are experimental | = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable error: aborting due to 12 previous errors Some errors have detailed explanations: E0183, E0229, E0658. For more information about an error, try `rustc --explain E0183`.