error[E0308]: mismatched types
  --> $DIR/variance-btree-invariant-types.rs:16:5
   |
LL |     v //~ ERROR mismatched types
   |     ^ lifetime mismatch
   |
   = note: expected type `std::collections::btree_map::IterMut<'_, &'new (), _>`
              found type `std::collections::btree_map::IterMut<'_, &'static (), _>`
note: the lifetime 'new as defined on the function body at 15:21...
  --> $DIR/variance-btree-invariant-types.rs:15:21
   |
LL | fn iter_cov_key<'a, 'new>(v: IterMut<'a, &'static (), ()>) -> IterMut<'a, &'new (), ()> {
   |                     ^^^^
   = note: ...does not necessarily outlive the static lifetime

error[E0308]: mismatched types
  --> $DIR/variance-btree-invariant-types.rs:19:5
   |
LL |     v //~ ERROR mismatched types
   |     ^ lifetime mismatch
   |
   = note: expected type `std::collections::btree_map::IterMut<'_, _, &'new ()>`
              found type `std::collections::btree_map::IterMut<'_, _, &'static ()>`
note: the lifetime 'new as defined on the function body at 18:21...
  --> $DIR/variance-btree-invariant-types.rs:18:21
   |
LL | fn iter_cov_val<'a, 'new>(v: IterMut<'a, (), &'static ()>) -> IterMut<'a, (), &'new ()> {
   |                     ^^^^
   = note: ...does not necessarily outlive the static lifetime

error[E0308]: mismatched types
  --> $DIR/variance-btree-invariant-types.rs:22:5
   |
LL |     v //~ ERROR mismatched types
   |     ^ lifetime mismatch
   |
   = note: expected type `std::collections::btree_map::IterMut<'_, &'static (), _>`
              found type `std::collections::btree_map::IterMut<'_, &'new (), _>`
note: the lifetime 'new as defined on the function body at 21:24...
  --> $DIR/variance-btree-invariant-types.rs:21:24
   |
LL | fn iter_contra_key<'a, 'new>(v: IterMut<'a, &'new (), ()>) -> IterMut<'a, &'static (), ()> {
   |                        ^^^^
   = note: ...does not necessarily outlive the static lifetime

error[E0308]: mismatched types
  --> $DIR/variance-btree-invariant-types.rs:25:5
   |
LL |     v //~ ERROR mismatched types
   |     ^ lifetime mismatch
   |
   = note: expected type `std::collections::btree_map::IterMut<'_, _, &'static ()>`
              found type `std::collections::btree_map::IterMut<'_, _, &'new ()>`
note: the lifetime 'new as defined on the function body at 24:24...
  --> $DIR/variance-btree-invariant-types.rs:24:24
   |
LL | fn iter_contra_val<'a, 'new>(v: IterMut<'a, (), &'new ()>) -> IterMut<'a, (), &'static ()> {
   |                        ^^^^
   = note: ...does not necessarily outlive the static lifetime

error[E0308]: mismatched types
  --> $DIR/variance-btree-invariant-types.rs:30:5
   |
LL |     v //~ ERROR mismatched types
   |     ^ lifetime mismatch
   |
   = note: expected type `std::collections::btree_map::OccupiedEntry<'_, &'new (), _>`
              found type `std::collections::btree_map::OccupiedEntry<'_, &'static (), _>`
note: the lifetime 'new as defined on the function body at 28:20...
  --> $DIR/variance-btree-invariant-types.rs:28:20
   |
LL | fn occ_cov_key<'a, 'new>(v: OccupiedEntry<'a, &'static (), ()>)
   |                    ^^^^
   = note: ...does not necessarily outlive the static lifetime

error[E0308]: mismatched types
  --> $DIR/variance-btree-invariant-types.rs:34:5
   |
LL |     v //~ ERROR mismatched types
   |     ^ lifetime mismatch
   |
   = note: expected type `std::collections::btree_map::OccupiedEntry<'_, _, &'new ()>`
              found type `std::collections::btree_map::OccupiedEntry<'_, _, &'static ()>`
note: the lifetime 'new as defined on the function body at 32:20...
  --> $DIR/variance-btree-invariant-types.rs:32:20
   |
LL | fn occ_cov_val<'a, 'new>(v: OccupiedEntry<'a, (), &'static ()>)
   |                    ^^^^
   = note: ...does not necessarily outlive the static lifetime

error[E0308]: mismatched types
  --> $DIR/variance-btree-invariant-types.rs:38:5
   |
LL |     v //~ ERROR mismatched types
   |     ^ lifetime mismatch
   |
   = note: expected type `std::collections::btree_map::OccupiedEntry<'_, &'static (), _>`
              found type `std::collections::btree_map::OccupiedEntry<'_, &'new (), _>`
note: the lifetime 'new as defined on the function body at 36:23...
  --> $DIR/variance-btree-invariant-types.rs:36:23
   |
LL | fn occ_contra_key<'a, 'new>(v: OccupiedEntry<'a, &'new (), ()>)
   |                       ^^^^
   = note: ...does not necessarily outlive the static lifetime

error[E0308]: mismatched types
  --> $DIR/variance-btree-invariant-types.rs:42:5
   |
LL |     v //~ ERROR mismatched types
   |     ^ lifetime mismatch
   |
   = note: expected type `std::collections::btree_map::OccupiedEntry<'_, _, &'static ()>`
              found type `std::collections::btree_map::OccupiedEntry<'_, _, &'new ()>`
note: the lifetime 'new as defined on the function body at 40:23...
  --> $DIR/variance-btree-invariant-types.rs:40:23
   |
LL | fn occ_contra_val<'a, 'new>(v: OccupiedEntry<'a, (), &'new ()>)
   |                       ^^^^
   = note: ...does not necessarily outlive the static lifetime

error[E0308]: mismatched types
  --> $DIR/variance-btree-invariant-types.rs:47:5
   |
LL |     v //~ ERROR mismatched types
   |     ^ lifetime mismatch
   |
   = note: expected type `std::collections::btree_map::VacantEntry<'_, &'new (), _>`
              found type `std::collections::btree_map::VacantEntry<'_, &'static (), _>`
note: the lifetime 'new as defined on the function body at 45:20...
  --> $DIR/variance-btree-invariant-types.rs:45:20
   |
LL | fn vac_cov_key<'a, 'new>(v: VacantEntry<'a, &'static (), ()>)
   |                    ^^^^
   = note: ...does not necessarily outlive the static lifetime

error[E0308]: mismatched types
  --> $DIR/variance-btree-invariant-types.rs:51:5
   |
LL |     v //~ ERROR mismatched types
   |     ^ lifetime mismatch
   |
   = note: expected type `std::collections::btree_map::VacantEntry<'_, _, &'new ()>`
              found type `std::collections::btree_map::VacantEntry<'_, _, &'static ()>`
note: the lifetime 'new as defined on the function body at 49:20...
  --> $DIR/variance-btree-invariant-types.rs:49:20
   |
LL | fn vac_cov_val<'a, 'new>(v: VacantEntry<'a, (), &'static ()>)
   |                    ^^^^
   = note: ...does not necessarily outlive the static lifetime

error[E0308]: mismatched types
  --> $DIR/variance-btree-invariant-types.rs:55:5
   |
LL |     v //~ ERROR mismatched types
   |     ^ lifetime mismatch
   |
   = note: expected type `std::collections::btree_map::VacantEntry<'_, &'static (), _>`
              found type `std::collections::btree_map::VacantEntry<'_, &'new (), _>`
note: the lifetime 'new as defined on the function body at 53:23...
  --> $DIR/variance-btree-invariant-types.rs:53:23
   |
LL | fn vac_contra_key<'a, 'new>(v: VacantEntry<'a, &'new (), ()>)
   |                       ^^^^
   = note: ...does not necessarily outlive the static lifetime

error[E0308]: mismatched types
  --> $DIR/variance-btree-invariant-types.rs:59:5
   |
LL |     v //~ ERROR mismatched types
   |     ^ lifetime mismatch
   |
   = note: expected type `std::collections::btree_map::VacantEntry<'_, _, &'static ()>`
              found type `std::collections::btree_map::VacantEntry<'_, _, &'new ()>`
note: the lifetime 'new as defined on the function body at 57:23...
  --> $DIR/variance-btree-invariant-types.rs:57:23
   |
LL | fn vac_contra_val<'a, 'new>(v: VacantEntry<'a, (), &'new ()>)
   |                       ^^^^
   = note: ...does not necessarily outlive the static lifetime

error: aborting due to 12 previous errors

For more information about this error, try `rustc --explain E0308`.