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+error[E0005]: refutable pattern in local binding: `Bar` and `Baz` not covered
+ --> $DIR/issue-31561.rs:8:9
+ |
+LL | let Thing::Foo(y) = Thing::Foo(1);
+ | ^^^^^^^^^^^^^ patterns `Bar` and `Baz` not covered
+ |
+ = note: `let` bindings require an "irrefutable pattern", like a `struct` or an `enum` with only one variant
+ = note: for more information, visit https://doc.rust-lang.org/book/ch18-02-refutability.html
+note: `Thing` defined here
+ --> $DIR/issue-31561.rs:3:5
+ |
+LL | enum Thing {
+ | -----
+LL | Foo(u8),
+LL | Bar,
+ | ^^^ not covered
+LL | Baz
+ | ^^^ not covered
+ = note: the matched value is of type `Thing`
+help: you might want to use `if let` to ignore the variants that aren't matched
+ |
+LL | let y = if let Thing::Foo(y) = Thing::Foo(1) { y } else { todo!() };
+ | ++++++++++ ++++++++++++++++++++++
+help: alternatively, on nightly, you might want to use `#![feature(let_else)]` to handle the variants that aren't matched
+ |
+LL | let Thing::Foo(y) = Thing::Foo(1) else { todo!() };
+ | ++++++++++++++++
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0005`.