error[E0277]: the trait bound `NonConstImpl: ~const ConstDefaultFn` is not satisfied
  --> $DIR/const-default-method-bodies.rs:24:18
   |
LL |     NonConstImpl.a();
   |                  ^^^ the trait `~const ConstDefaultFn` is not implemented for `NonConstImpl`
   |
note: the trait `ConstDefaultFn` is implemented for `NonConstImpl`, but that implementation is not `const`
  --> $DIR/const-default-method-bodies.rs:24:18
   |
LL |     NonConstImpl.a();
   |                  ^^^

error[E0015]: cannot call non-const fn `<NonConstImpl as ConstDefaultFn>::a` in constant functions
  --> $DIR/const-default-method-bodies.rs:24:18
   |
LL |     NonConstImpl.a();
   |                  ^^^
   |
   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0015, E0277.
For more information about an error, try `rustc --explain E0015`.