error: using `#![feature(effects)]` without enabling next trait solver globally | = note: the next trait solver must be enabled globally for the effects feature to work correctly = help: use `-Znext-solver` to enable error: const `impl` for trait `FromResidual` which is not marked with `#[const_trait]` --> $DIR/const-try.rs:16:12 | LL | impl const FromResidual for TryMe { | ^^^^^^^^^^^^^^^^^^^ | = 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 `Try` which is not marked with `#[const_trait]` --> $DIR/const-try.rs:22:12 | LL | impl const Try for TryMe { | ^^^ | = 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: aborting due to 3 previous errors