warning: unused import: `displaydoc::Display`
  --> $DIR/without.rs:20:5
   |
20 | use displaydoc::Display;
   |     ^^^^^^^^^^^^^^^^^^^
   |
   = note: `#[warn(unused_imports)]` on by default

error[E0277]: `FakeType` doesn't implement `std::fmt::Display`
  --> $DIR/without.rs:25:37
   |
25 | static_assertions::assert_impl_all!(FakeType: core::fmt::Display);
   |                                     ^^^^^^^^ `FakeType` cannot be formatted with the default formatter
   |
   = help: the trait `std::fmt::Display` is not implemented for `FakeType`
   = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
note: required by a bound in `assert_impl_all`
  --> $DIR/without.rs:25:1
   |
25 | static_assertions::assert_impl_all!(FakeType: core::fmt::Display);
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `assert_impl_all`
   = note: this error originates in the macro `static_assertions::assert_impl_all` (in Nightly builds, run with -Z macro-backtrace for more info)