1 error[E0391]: cycle detected when computing the supertraits of `T1`
2 --> $DIR/issue-12511.rs:1:12
7 note: ...which requires computing the supertraits of `T2`...
8 --> $DIR/issue-12511.rs:5:12
12 = note: ...which again requires computing the supertraits of `T1`, completing the cycle
14 error: aborting due to previous error
16 For more information about this error, try `rustc --explain E0391`.