1 files changed, 105 insertions, 0 deletions
diff --git a/tests/ui/feature-gates/feature-gate-unboxed-closures-manual-impls.stderr b/tests/ui/feature-gates/feature-gate-unboxed-closures-manual-impls.stderr
new file mode 100644
index 000000000..f647380ef
--- /dev/null
+++ b/tests/ui/feature-gates/feature-gate-unboxed-closures-manual-impls.stderr
@@ -0,0 +1,105 @@
+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 <https://github.com/rust-lang/rust/issues/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 <https://github.com/rust-lang/rust/issues/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 <https://github.com/rust-lang/rust/issues/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 <https://github.com/rust-lang/rust/issues/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 <https://github.com/rust-lang/rust/issues/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
+
+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 <https://github.com/rust-lang/rust/issues/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 <https://github.com/rust-lang/rust/issues/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`.