error[E0599]: no variant named `B` found for enum `S`
  --> $DIR/enum-variant-not-found.rs:9:12
   |
LL | enum S {
   | ------ variant `B` not found here
...
LL |         S::B {} => {},
   |            ^
   |
help: there is a variant with a similar name
   |
LL -         S::B {} => {},
LL +         S::A {} => {},
   |

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0599`.