error[E0403]: the name `N` is already used for a generic parameter in this item's generic parameters --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:11:18 | LL | trait Trait { | - first use of `N` ... LL | fn fnc(&self) -> Trait { | ^ already used error[E0425]: cannot find value `bar` in this scope --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:1:30 | LL | trait Trait { | ^^^ not found in this scope error[E0423]: expected value, found builtin type `u32` --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:11:29 | LL | fn fnc(&self) -> Trait { | ^^^ not a value error[E0425]: cannot find value `bar` in this scope --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:23:9 | LL | bar | ^^^ not found in this scope warning: trait objects without an explicit `dyn` are deprecated --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:1:22 | LL | trait Trait { | ^^^^^ | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see = note: `#[warn(bare_trait_objects)]` on by default help: if this is a dyn-compatible trait, use `dyn` | LL | trait Trait { | +++ error[E0391]: cycle detected when computing type of `Trait::N` --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:1:22 | LL | trait Trait { | ^^^^^ | = note: ...which immediately requires computing type of `Trait::N` again note: cycle used when computing explicit predicates of trait `Trait` --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:1:1 | LL | trait Trait { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information error: defaults for const parameters are only allowed in `struct`, `enum`, `type`, or `trait` definitions --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:11:12 | LL | fn fnc(&self) -> Trait { | ^^^^^^^^^^^^^^^^^^^^ warning: trait objects without an explicit `dyn` are deprecated --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:11:21 | LL | fn fnc(&self) -> Trait { | ^^^^^ | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see help: if this is a dyn-compatible trait, use `dyn` | LL | fn fnc(&self) -> Trait { | +++ warning: trait objects without an explicit `dyn` are deprecated --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:11:44 | LL | fn fnc(&self) -> Trait { | ^^^^^ | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see help: if this is a dyn-compatible trait, use `dyn` | LL | fn fnc(&self) -> dyn Trait { | +++ warning: trait objects without an explicit `dyn` are deprecated --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:1:22 | LL | trait Trait { | ^^^^^ | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` help: if this is a dyn-compatible trait, use `dyn` | LL | trait Trait { | +++ error[E0038]: the trait `Trait` cannot be made into an object --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:1:22 | LL | trait Trait { | ^^^^^ `Trait` cannot be made into an object | note: for a trait to be "dyn-compatible" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:11:8 | LL | trait Trait { | ----- this trait cannot be made into an object... ... LL | fn fnc(&self) -> Trait { | ^^^ ...because method `fnc` has generic type parameters = help: consider moving `fnc` to another trait error[E0038]: the trait `Trait` cannot be made into an object --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:1:13 | LL | trait Trait { | ^^^^^^^^^^^^^^^^^^^^ `Trait` cannot be made into an object | note: for a trait to be "dyn-compatible" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:11:8 | LL | trait Trait { | ----- this trait cannot be made into an object... ... LL | fn fnc(&self) -> Trait { | ^^^ ...because method `fnc` has generic type parameters = help: consider moving `fnc` to another trait error: associated item referring to unboxed trait object for its own trait --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:11:44 | LL | trait Trait { | ----- in this trait ... LL | fn fnc(&self) -> Trait { | ^^^^^ | help: you might have meant to use `Self` to refer to the implementing type | LL | fn fnc(&self) -> Self { | ~~~~ warning: trait objects without an explicit `dyn` are deprecated --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:11:21 | LL | fn fnc(&self) -> Trait { | ^^^^^ | = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` help: if this is a dyn-compatible trait, use `dyn` | LL | fn fnc(&self) -> Trait { | +++ error[E0038]: the trait `Trait` cannot be made into an object --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:11:21 | LL | fn fnc(&self) -> Trait { | ^^^^^ `Trait` cannot be made into an object | note: for a trait to be "dyn-compatible" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:11:8 | LL | trait Trait { | ----- this trait cannot be made into an object... ... LL | fn fnc(&self) -> Trait { | ^^^ ...because method `fnc` has generic type parameters = help: consider moving `fnc` to another trait error[E0038]: the trait `Trait` cannot be made into an object --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:1:13 | LL | trait Trait { | ^^^^^^^^^^^^^^^^^^^^ `Trait` cannot be made into an object | note: for a trait to be "dyn-compatible" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit --> $DIR/ice-hir-wf-check-anon-const-issue-122199.rs:11:8 | LL | trait Trait { | ----- this trait cannot be made into an object... ... LL | fn fnc(&self) -> Trait { | ^^^ ...because method `fnc` has generic type parameters = help: consider moving `fnc` to another trait = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` error: aborting due to 11 previous errors; 5 warnings emitted Some errors have detailed explanations: E0038, E0391, E0403, E0423, E0425. For more information about an error, try `rustc --explain E0038`.