error: the following explicit lifetimes could be elided: 'a, 's
  --> tests/ui/crashes/ice-15666.rs:5:11
   |
LL | impl<'de, 'a, 's> Trait<'de> for UnitVariantAccess<'a, 'de, 's> {}
   |           ^^  ^^                                   ^^       ^^
   |
   = note: `-D clippy::elidable-lifetime-names` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::elidable_lifetime_names)]`
help: elide the lifetimes
   |
LL - impl<'de, 'a, 's> Trait<'de> for UnitVariantAccess<'a, 'de, 's> {}
LL + impl<'de> Trait<'de> for UnitVariantAccess<'_, 'de, '_> {}
   |

error: aborting due to 1 previous error