error[E0277]: the size for values of type `str` cannot be known at compilation time --> $DIR/trivial-bounds-leak.rs:12:25 | LL | fn cant_return_str() -> str { | ^^^ doesn't have a size known at compile-time | = help: the trait `Sized` is not implemented for `str` = note: the return type of a function must have a statically known size error[E0599]: no method named `test` found for type `i32` in the current scope --> $DIR/trivial-bounds-leak.rs:24:10 | LL | 3i32.test(); | ^^^^ method not found in `i32` | = help: items from traits can only be used if the trait is implemented and in scope note: `Foo` defines an item `test`, perhaps you need to implement it --> $DIR/trivial-bounds-leak.rs:4:1 | LL | pub trait Foo { | ^^^^^^^^^^^^^ error[E0277]: the trait bound `i32: Foo` is not satisfied --> $DIR/trivial-bounds-leak.rs:25:15 | LL | Foo::test(&4i32); | --------- ^^^^^ the trait `Foo` is not implemented for `i32` | | | required by a bound introduced by this call | help: this trait has no implementations, consider adding one --> $DIR/trivial-bounds-leak.rs:4:1 | LL | pub trait Foo { | ^^^^^^^^^^^^^ error[E0277]: the trait bound `i32: Foo` is not satisfied --> $DIR/trivial-bounds-leak.rs:26:22 | LL | generic_function(5i32); | ---------------- ^^^^ the trait `Foo` is not implemented for `i32` | | | required by a bound introduced by this call | help: this trait has no implementations, consider adding one --> $DIR/trivial-bounds-leak.rs:4:1 | LL | pub trait Foo { | ^^^^^^^^^^^^^ note: required by a bound in `generic_function` --> $DIR/trivial-bounds-leak.rs:29:24 | LL | fn generic_function(t: T) {} | ^^^ required by this bound in `generic_function` error: aborting due to 4 previous errors Some errors have detailed explanations: E0277, E0599. For more information about an error, try `rustc --explain E0277`.