error: `Foo` import is ambiguous
  --> $DIR/block-scoped-shadow.rs:21:9
   |
LL | enum Foo { A, B }
   | ----------------- can refer to `self::Foo`
...
LL |     enum Foo {}
   |     ----------- shadowed by block-scoped `Foo`
LL |     use Foo::*;
   |         ^^^
   |
   = help: write `self::Foo` explicitly instead
   = note: relative `use` paths enabled by `#![feature(uniform_paths)]`

error: `std` import is ambiguous
  --> $DIR/block-scoped-shadow.rs:28:9
   |
LL | struct std;
   | ----------- can refer to `self::std`
...
LL |     enum std {}
   |     ----------- shadowed by block-scoped `std`
LL |     use std as foo;
   |         ^^^ can refer to external crate `::std`
   |
   = help: write `::std` or `self::std` explicitly instead
   = note: relative `use` paths enabled by `#![feature(uniform_paths)]`

error: `std` import is ambiguous
  --> $DIR/block-scoped-shadow.rs:28:9
   |
LL | struct std;
   | ----------- can refer to `self::std`
...
LL |     fn std() {}
   |     ----------- shadowed by block-scoped `std`
LL |     enum std {}
LL |     use std as foo;
   |         ^^^
   |
   = help: write `self::std` explicitly instead
   = note: relative `use` paths enabled by `#![feature(uniform_paths)]`

error: aborting due to 3 previous errors