error: unexpected `1` after identifier
  --> $DIR/recovery-allowed.rs:5:23
   |
LL | please_recover! { not 1 }
   |                       ^
   |
help: use `!` to perform bitwise not
   |
LL - please_recover! { not 1 }
LL + please_recover! { !1 }
   |

error: aborting due to 1 previous error