1 files changed, 99 insertions, 0 deletions
diff --git a/tests/ui/rfc-2632-const-trait-impl/const-drop-fail.precise.stderr b/tests/ui/rfc-2632-const-trait-impl/const-drop-fail.precise.stderr
new file mode 100644
index 000000000..796c0d388
--- /dev/null
+++ b/tests/ui/rfc-2632-const-trait-impl/const-drop-fail.precise.stderr
@@ -0,0 +1,99 @@
+error[E0277]: can't drop `NonTrivialDrop` in const contexts
+  --> $DIR/const-drop-fail.rs:44:5
+   |
+LL |         const _: () = check($exp);
+   |                       ----- required by a bound introduced by this call
+...
+LL |     NonTrivialDrop,
+   |     ^^^^^^^^^^^^^^ the trait `~const Destruct` is not implemented for `NonTrivialDrop`
+   |
+   = note: the trait bound `NonTrivialDrop: ~const Destruct` is not satisfied
+note: required by a bound in `check`
+  --> $DIR/const-drop-fail.rs:35:19
+   |
+LL | const fn check<T: ~const Destruct>(_: T) {}
+   |                   ^^^^^^^^^^^^^^^ required by this bound in `check`
+help: consider borrowing here
+   |
+LL |     &NonTrivialDrop,
+   |     +
+LL |     &mut NonTrivialDrop,
+   |     ++++
+
+error[E0277]: can't drop `NonTrivialDrop` in const contexts
+  --> $DIR/const-drop-fail.rs:46:5
+   |
+LL |         const _: () = check($exp);
+   |                       ----- required by a bound introduced by this call
+...
+LL |     ConstImplWithDropGlue(NonTrivialDrop),
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ within `ConstImplWithDropGlue`, the trait `~const Destruct` is not implemented for `NonTrivialDrop`
+   |
+note: the trait `Destruct` is implemented for `NonTrivialDrop`, but that implementation is not `const`
+  --> $DIR/const-drop-fail.rs:46:5
+   |
+LL |     ConstImplWithDropGlue(NonTrivialDrop),
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: required because it appears within the type `ConstImplWithDropGlue`
+  --> $DIR/const-drop-fail.rs:16:8
+   |
+LL | struct ConstImplWithDropGlue(NonTrivialDrop);
+   |        ^^^^^^^^^^^^^^^^^^^^^
+note: required by a bound in `check`
+  --> $DIR/const-drop-fail.rs:35:19
+   |
+LL | const fn check<T: ~const Destruct>(_: T) {}
+   |                   ^^^^^^^^^^^^^^^ required by this bound in `check`
+
+error[E0277]: the trait bound `NonTrivialDrop: ~const A` is not satisfied
+  --> $DIR/const-drop-fail.rs:48:47
+   |
+LL |     ConstDropImplWithBounds::<NonTrivialDrop>(PhantomData),
+   |     ----------------------------------------- ^^^^^^^^^^^ the trait `~const A` is not implemented for `NonTrivialDrop`
+   |     |
+   |     required by a bound introduced by this call
+   |
+note: the trait `A` is implemented for `NonTrivialDrop`, but that implementation is not `const`
+  --> $DIR/const-drop-fail.rs:48:47
+   |
+LL |     ConstDropImplWithBounds::<NonTrivialDrop>(PhantomData),
+   |                                               ^^^^^^^^^^^
+note: required by a bound in `ConstDropImplWithBounds`
+  --> $DIR/const-drop-fail.rs:27:35
+   |
+LL | struct ConstDropImplWithBounds<T: ~const A>(PhantomData<T>);
+   |                                   ^^^^^^^^ required by this bound in `ConstDropImplWithBounds`
+
+error[E0277]: the trait bound `NonTrivialDrop: ~const A` is not satisfied
+  --> $DIR/const-drop-fail.rs:48:5
+   |
+LL |     ConstDropImplWithBounds::<NonTrivialDrop>(PhantomData),
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `~const A` is not implemented for `NonTrivialDrop`
+   |
+note: the trait `A` is implemented for `NonTrivialDrop`, but that implementation is not `const`
+  --> $DIR/const-drop-fail.rs:48:5
+   |
+LL |     ConstDropImplWithBounds::<NonTrivialDrop>(PhantomData),
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: required by a bound in `ConstDropImplWithBounds`
+  --> $DIR/const-drop-fail.rs:27:35
+   |
+LL | struct ConstDropImplWithBounds<T: ~const A>(PhantomData<T>);
+   |                                   ^^^^^^^^ required by this bound in `ConstDropImplWithBounds`
+
+error[E0367]: `Drop` impl requires `T: ~const A` but the struct it is implemented for does not
+  --> $DIR/const-drop-fail.rs:55:9
+   |
+LL | impl<T: ~const A> const Drop for ConstDropImplWithNonConstBounds<T> {
+   |         ^^^^^^^^
+   |
+note: the implementor must specify the same requirement
+  --> $DIR/const-drop-fail.rs:53:1
+   |
+LL | struct ConstDropImplWithNonConstBounds<T: A>(PhantomData<T>);
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: aborting due to 5 previous errors
+
+Some errors have detailed explanations: E0277, E0367.
+For more information about an error, try `rustc --explain E0277`.