error[E0433]: failed to resolve: use of undeclared crate or module `nope` --> $DIR/conflicting-impl-with-err.rs:4:11 | LL | impl From for Error { | ^^^^ use of undeclared crate or module `nope` error[E0433]: failed to resolve: use of undeclared crate or module `nope` --> $DIR/conflicting-impl-with-err.rs:5:16 | LL | fn from(_: nope::Thing) -> Self { | ^^^^ use of undeclared crate or module `nope` error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0433`.