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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:13 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:13 +0000
commit218caa410aa38c29984be31a5229b9fa717560ee (patch)
treec54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/object-safety/issue-19538.stderr
parentReleasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff)
downloadrustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz
rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+error[E0038]: the trait `Bar` cannot be made into an object
+ --> $DIR/issue-19538.rs:17:15
+ |
+LL | let test: &mut dyn Bar = &mut thing;
+ | ^^^^^^^^^^^^ `Bar` cannot be made into an object
+ |
+note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
+ --> $DIR/issue-19538.rs:2:8
+ |
+LL | fn foo<T>(&self, val: T);
+ | ^^^ ...because method `foo` has generic type parameters
+...
+LL | trait Bar: Foo { }
+ | --- this trait cannot be made into an object...
+ = help: consider moving `foo` to another trait
+
+error[E0038]: the trait `Bar` cannot be made into an object
+ --> $DIR/issue-19538.rs:17:30
+ |
+LL | let test: &mut dyn Bar = &mut thing;
+ | ^^^^^^^^^^ `Bar` cannot be made into an object
+ |
+note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
+ --> $DIR/issue-19538.rs:2:8
+ |
+LL | fn foo<T>(&self, val: T);
+ | ^^^ ...because method `foo` has generic type parameters
+...
+LL | trait Bar: Foo { }
+ | --- this trait cannot be made into an object...
+ = help: consider moving `foo` to another trait
+ = note: required for `&mut Thing` to implement `CoerceUnsized<&mut dyn Bar>`
+ = note: required by cast to type `&mut dyn Bar`
+
+error: aborting due to 2 previous errors
+
+For more information about this error, try `rustc --explain E0038`.