error[E0308]: mismatched types --> $DIR/field-access.rs:20:12 | LL | Fst, | --- unit variant defined here ... LL | if let B::Fst = a {}; | ^^^^^^ - this expression has type `A` | | | expected struct `A`, found enum `B` | help: you might have meant to use field `b` whose type is `B` | LL | if let B::Fst = a.b {}; | ~~~ error[E0308]: mismatched types --> $DIR/field-access.rs:25:9 | LL | Fst, | --- unit variant defined here ... LL | match a { | - this expression has type `A` ... LL | B::Fst => (), | ^^^^^^ expected struct `A`, found enum `B` | help: you might have meant to use field `b` whose type is `B` | LL | match a.b { | ~~~ error[E0308]: mismatched types --> $DIR/field-access.rs:26:9 | LL | Snd, | --- unit variant defined here ... LL | match a { | - this expression has type `A` ... LL | B::Snd => (), | ^^^^^^ expected struct `A`, found enum `B` | help: you might have meant to use field `b` whose type is `B` | LL | match a.b { | ~~~ error[E0308]: mismatched types --> $DIR/field-access.rs:32:9 | LL | match foo { | --- this expression has type `Foo` LL | LL | 1u32 => (), | ^^^^ expected union `Foo`, found `u32` | help: you might have meant to use field `bar` whose type is `u32` | LL | match unsafe { foo.bar } { | ~~~~~~~~~~~~~~~~~~ error: aborting due to 4 previous errors For more information about this error, try `rustc --explain E0308`.