error: you probably are missing some parameter in your format string
 --> $DIR/panic.rs:8:16
  |
8 |         panic!("{}");
  |                ^^^^
  |
  = note: `-D panic-params` implied by `-D warnings`

error: you probably are missing some parameter in your format string
  --> $DIR/panic.rs:10:16
   |
10 |         panic!("{:?}");
   |                ^^^^^^

error: you probably are missing some parameter in your format string
  --> $DIR/panic.rs:12:23
   |
12 |         assert!(true, "here be missing values: {}");
   |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: you probably are missing some parameter in your format string
  --> $DIR/panic.rs:15:12
   |
15 |     panic!("{{{this}}}");
   |            ^^^^^^^^^^^^

error: `unimplemented` should not be present in production code
  --> $DIR/panic.rs:57:5
   |
57 |     unimplemented!();
   |     ^^^^^^^^^^^^^^^^^
   |
   = note: `-D unimplemented` implied by `-D warnings`
   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)

error: aborting due to 5 previous errors