error: symbol-name(_RNvXINICsCRATE_HASH_11issue_75326s_0pppEINtB<REF>_3FooppENtB<REF>_9Iterator24nextB<REF>_)
  --> $DIR/issue-75326.rs:41:5
   |
LL |     #[rustc_symbol_name]
   |     ^^^^^^^^^^^^^^^^^^^^

error: demangling(<issue_75326[e8e253d78520f2a2]::Foo<_, _> as issue_75326[e8e253d78520f2a2]::Iterator2>::next)
  --> $DIR/issue-75326.rs:41:5
   |
LL |     #[rustc_symbol_name]
   |     ^^^^^^^^^^^^^^^^^^^^

error: demangling-alt(<issue_75326::Foo<_, _> as issue_75326::Iterator2>::next)
  --> $DIR/issue-75326.rs:41:5
   |
LL |     #[rustc_symbol_name]
   |     ^^^^^^^^^^^^^^^^^^^^

error: aborting due to 3 previous errors