error[E0505]: cannot move out of `b` because it is borrowed
  --> $DIR/issue-27282-move-match-input-into-guard.rs:26:16
   |
LL |        match b {
   |   _____-
   |  |_____|
   | ||
LL | ||         &mut false => {},
LL | ||         _ if { (|| { let bar = b; *bar = false; })();
   | ||                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ move out of `b` occurs here
LL | ||                      //~^ ERROR cannot move out of `b` because it is borrowed [E0505]
...  ||
LL | ||         _ => panic!("surely we could never get here, since rustc warns it is unreachable."),
LL | ||     }
   | ||     -
   | ||_____|
   | |______borrow of `b` occurs here
   |        borrow later used here

error[E0382]: use of moved value: `*b`
  --> $DIR/issue-27282-move-match-input-into-guard.rs:29:14
   |
LL |         _ if { (|| { let bar = b; *bar = false; })();
   |                ----------------------------------- value moved here
...
LL |         &mut true => { println!("You might think we should get here"); },
   |              ^^^^ value used here after move

error: aborting due to 2 previous errors

Some errors occurred: E0382, E0505.
For more information about an error, try `rustc --explain E0382`.