error[E0277]: the trait bound `Self: std::marker::Copy` is not satisfied
  --> $DIR/defaults-unsound-62211-2.rs:21:18
   |
LL | trait UncheckedCopy: Sized {
   | -------------------------- required by `UncheckedCopy`
...
LL |     type Output: Copy
   |                  ^^^^ the trait `std::marker::Copy` is not implemented for `Self`
   |
help: consider further restricting `Self`
   |
LL | trait UncheckedCopy: Sized + std::marker::Copy {
   |                            ^^^^^^^^^^^^^^^^^^^

error[E0277]: cannot add-assign `&'static str` to `Self`
  --> $DIR/defaults-unsound-62211-2.rs:25:7
   |
LL | trait UncheckedCopy: Sized {
   | -------------------------- required by `UncheckedCopy`
...
LL |     + AddAssign<&'static str>
   |       ^^^^^^^^^^^^^^^^^^^^^^^ no implementation for `Self += &'static str`
   |
help: consider further restricting `Self`
   |
LL | trait UncheckedCopy: Sized + std::ops::AddAssign<&'static str> {
   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0277]: the trait bound `Self: std::ops::Deref` is not satisfied
  --> $DIR/defaults-unsound-62211-2.rs:23:7
   |
LL | trait UncheckedCopy: Sized {
   | -------------------------- required by `UncheckedCopy`
...
LL |     + Deref<Target = str>
   |       ^^^^^^^^^^^^^^^^^^^ the trait `std::ops::Deref` is not implemented for `Self`
   |
help: consider further restricting `Self`
   |
LL | trait UncheckedCopy: Sized + std::ops::Deref {
   |                            ^^^^^^^^^^^^^^^^^

error[E0277]: `Self` doesn't implement `std::fmt::Display`
  --> $DIR/defaults-unsound-62211-2.rs:28:7
   |
LL | trait UncheckedCopy: Sized {
   | -------------------------- required by `UncheckedCopy`
...
LL |     + Display = Self;
   |       ^^^^^^^ `Self` cannot be formatted with the default formatter
   |
   = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
help: consider further restricting `Self`
   |
LL | trait UncheckedCopy: Sized + std::fmt::Display {
   |                            ^^^^^^^^^^^^^^^^^^^

error[E0277]: `T` doesn't implement `std::fmt::Display`
  --> $DIR/defaults-unsound-62211-2.rs:41:9
   |
LL | trait UncheckedCopy: Sized {
   |       ------------- required by a bound in this
...
LL |     + Display = Self;
   |       ------- required by this bound in `UncheckedCopy`
...
LL | impl<T> UncheckedCopy for T {}
   |         ^^^^^^^^^^^^^ `T` cannot be formatted with the default formatter
   |
   = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
help: consider restricting type parameter `T`
   |
LL | impl<T: std::fmt::Display> UncheckedCopy for T {}
   |       ^^^^^^^^^^^^^^^^^^^

error[E0277]: the trait bound `T: std::ops::Deref` is not satisfied
  --> $DIR/defaults-unsound-62211-2.rs:41:9
   |
LL | trait UncheckedCopy: Sized {
   |       ------------- required by a bound in this
...
LL |     + Deref<Target = str>
   |       ------------------- required by this bound in `UncheckedCopy`
...
LL | impl<T> UncheckedCopy for T {}
   |         ^^^^^^^^^^^^^ the trait `std::ops::Deref` is not implemented for `T`
   |
help: consider restricting type parameter `T`
   |
LL | impl<T: std::ops::Deref> UncheckedCopy for T {}
   |       ^^^^^^^^^^^^^^^^^

error[E0277]: cannot add-assign `&'static str` to `T`
  --> $DIR/defaults-unsound-62211-2.rs:41:9
   |
LL | trait UncheckedCopy: Sized {
   |       ------------- required by a bound in this
...
LL |     + AddAssign<&'static str>
   |       ----------------------- required by this bound in `UncheckedCopy`
...
LL | impl<T> UncheckedCopy for T {}
   |         ^^^^^^^^^^^^^ no implementation for `T += &'static str`
   |
help: consider restricting type parameter `T`
   |
LL | impl<T: std::ops::AddAssign<&'static str>> UncheckedCopy for T {}
   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0277]: the trait bound `T: std::marker::Copy` is not satisfied
  --> $DIR/defaults-unsound-62211-2.rs:41:9
   |
LL | trait UncheckedCopy: Sized {
   |       ------------- required by a bound in this
...
LL |     type Output: Copy
   |                  ---- required by this bound in `UncheckedCopy`
...
LL | impl<T> UncheckedCopy for T {}
   |         ^^^^^^^^^^^^^ the trait `std::marker::Copy` is not implemented for `T`
   |
help: consider restricting type parameter `T`
   |
LL | impl<T: std::marker::Copy> UncheckedCopy for T {}
   |       ^^^^^^^^^^^^^^^^^^^

error: aborting due to 8 previous errors

For more information about this error, try `rustc --explain E0277`.