error[E0433]: failed to resolve: use of undeclared crate or module `env` --> $DIR/builtin-prelude-no-accidents.rs:5:5 | LL | env::current_dir; | ^^^ use of undeclared crate or module `env` error[E0433]: failed to resolve: use of undeclared crate or module `vec` --> $DIR/builtin-prelude-no-accidents.rs:7:14 | LL | type B = vec::Vec; | ^^^ | | | use of undeclared crate or module `vec` | help: a struct with a similar name exists (notice the capitalization): `Vec` error[E0433]: failed to resolve: use of undeclared crate or module `panic` --> $DIR/builtin-prelude-no-accidents.rs:6:14 | LL | type A = panic::PanicInfo; | ^^^^^ use of undeclared crate or module `panic` error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0433`.