src/test/ui/issues/issue-34373.stderr

   1 error[E0391]: cycle detected when computing type of `Foo::T`
   2   --> $DIR/issue-34373.rs:7:30
   3    |
   4 LL | pub struct Foo<T = Box<Trait<DefaultFoo>>>;
   5    |                              ^^^^^^^^^^
   6    |
   7 note: ...which requires expanding type alias `DefaultFoo`...
   8   --> $DIR/issue-34373.rs:8:19
   9    |
  10 LL | type DefaultFoo = Foo;
  11    |                   ^^^
  12    = note: ...which again requires computing type of `Foo::T`, completing the cycle
  13 note: cycle used when collecting item types in top-level module
  14   --> $DIR/issue-34373.rs:1:1
  15    |
  16 LL | / #![allow(warnings)]
  17 LL | |
  18 LL | | trait Trait<T> {
  19 LL | |     fn foo(_: T) {}
  20 ...  |
  21 LL | | fn main() {
  22 LL | | }
  23    | |_^
  24
  25 error: aborting due to previous error
  26
  27 For more information about this error, try `rustc --explain E0391`.