error[E0107]: struct takes 2 lifetime arguments but 3 lifetime arguments were supplied
  --> $DIR/noisy-follow-up-erro.rs:12:30
   |
LL |     fn boom(&self, foo: &mut Foo<'_, '_, 'a>) -> Result<(), &'a ()> {
   |                              ^^^       ---- help: remove the lifetime argument
   |                              |
   |                              expected 2 lifetime arguments
   |
note: struct defined here, with 2 lifetime parameters: `'c`, `'d`
  --> $DIR/noisy-follow-up-erro.rs:1:8
   |
LL | struct Foo<'c, 'd>(&'c (), &'d ());
   |        ^^^ --  --

error[E0621]: explicit lifetime required in the type of `foo`
  --> $DIR/noisy-follow-up-erro.rs:14:9
   |
LL |     fn boom(&self, foo: &mut Foo<'_, '_, 'a>) -> Result<(), &'a ()> {
   |                         -------------------- help: add explicit lifetime `'a` to the type of `foo`: `&mut Foo<'_, 'a>`
LL |
LL |         self.bar().map_err(|()| foo.acc(self))?;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ lifetime `'a` required

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0107, E0621.
For more information about an error, try `rustc --explain E0107`.