warning: the feature `effects` is incomplete and may not be safe to use and/or cause compiler crashes --> $DIR/trait-default-body-stability.rs:4:30 | LL | #![feature(const_trait_impl, effects)] | ^^^^^^^ | = note: see issue #102090 for more information = note: `#[warn(incomplete_features)]` on by default error: const `impl` for trait `Try` which is not marked with `#[const_trait]` --> $DIR/trait-default-body-stability.rs:18:12 | LL | impl const Try for T { | ^^^ | = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const` = note: adding a non-const method body in the future would be a breaking change error: const `impl` for trait `FromResidual` which is not marked with `#[const_trait]` --> $DIR/trait-default-body-stability.rs:33:12 | LL | impl const FromResidual for T { | ^^^^^^^^^^^^ | = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const` = note: adding a non-const method body in the future would be a breaking change error[E0207]: the const parameter `host` is not constrained by the impl trait, self type, or predicates --> $DIR/trait-default-body-stability.rs:18:6 | LL | impl const Try for T { | ^^^^^ unconstrained const parameter | = note: expressions using a const parameter must map each value to a distinct output value = note: proving the result of expressions other than the parameter are unique is not supported error[E0207]: the const parameter `host` is not constrained by the impl trait, self type, or predicates --> $DIR/trait-default-body-stability.rs:33:6 | LL | impl const FromResidual for T { | ^^^^^ unconstrained const parameter | = note: expressions using a const parameter must map each value to a distinct output value = note: proving the result of expressions other than the parameter are unique is not supported error[E0284]: type annotations needed --> $DIR/trait-default-body-stability.rs:33:6 | LL | impl const FromResidual for T { | ^^^^^ cannot infer the value of the constant `_` | note: required for `T` to implement `Try` --> $DIR/trait-default-body-stability.rs:18:12 | LL | impl const Try for T { | ----- ^^^ ^ | | | unsatisfied trait bound introduced here error[E0284]: type annotations needed --> $DIR/trait-default-body-stability.rs:44:9 | LL | T? | ^^ cannot infer the value of the constant `_` | note: required for `T` to implement `Try` --> $DIR/trait-default-body-stability.rs:18:12 | LL | impl const Try for T { | ----- ^^^ ^ | | | unsatisfied trait bound introduced here error[E0284]: type annotations needed --> $DIR/trait-default-body-stability.rs:44:9 | LL | T? | ^^ cannot infer the value of the constant `_` | note: required for `T` to implement `FromResidual` --> $DIR/trait-default-body-stability.rs:33:12 | LL | impl const FromResidual for T { | ----- ^^^^^^^^^^^^ ^ | | | unsatisfied trait bound introduced here error[E0284]: type annotations needed --> $DIR/trait-default-body-stability.rs:44:9 | LL | T? | ^^ cannot infer the value of the constant `_` | note: required for `T` to implement `Try` --> $DIR/trait-default-body-stability.rs:18:12 | LL | impl const Try for T { | ----- ^^^ ^ | | | unsatisfied trait bound introduced here = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` error[E0284]: type annotations needed --> $DIR/trait-default-body-stability.rs:44:9 | LL | T? | ^^ cannot infer the value of the constant `_` | note: required for `T` to implement `FromResidual` --> $DIR/trait-default-body-stability.rs:33:12 | LL | impl const FromResidual for T { | ----- ^^^^^^^^^^^^ ^ | | | unsatisfied trait bound introduced here = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` error[E0284]: type annotations needed --> $DIR/trait-default-body-stability.rs:44:9 | LL | T? | ^^ cannot infer the value of the constant `_` | note: required for `T` to implement `Try` --> $DIR/trait-default-body-stability.rs:18:12 | LL | impl const Try for T { | ----- ^^^ ^ | | | unsatisfied trait bound introduced here = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` error: aborting due to 10 previous errors; 1 warning emitted Some errors have detailed explanations: E0207, E0284. For more information about an error, try `rustc --explain E0207`.