src/tools/clippy/tests/ui/panic.stderr

error: you probably are missing some parameter in your format string
  --> $DIR/panic.rs:5:16
   |
LL |         panic!("{}");
   |                ^^^^
   |
   = note: `-D clippy::panic-params` implied by `-D warnings`

error: you probably are missing some parameter in your format string
  --> $DIR/panic.rs:7:16
   |
LL |         panic!("{:?}");
   |                ^^^^^^

error: you probably are missing some parameter in your format string
  --> $DIR/panic.rs:9:23
   |
LL |         assert!(true, "here be missing values: {}");
   |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: you probably are missing some parameter in your format string
  --> $DIR/panic.rs:12:12
   |
LL |     panic!("{{{this}}}");
   |            ^^^^^^^^^^^^

error: aborting due to 4 previous errors