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+error[E0391]: cycle detected when computing the super predicates of `T1`
+ --> $DIR/infinite-trait-alias-recursion.rs:3:1
+ |
+LL | trait T1 = T2;
+ | ^^^^^^^^
+ |
+note: ...which requires computing the super traits of `T1`...
+ --> $DIR/infinite-trait-alias-recursion.rs:3:12
+ |
+LL | trait T1 = T2;
+ | ^^
+note: ...which requires computing the super predicates of `T2`...
+ --> $DIR/infinite-trait-alias-recursion.rs:6:1
+ |
+LL | trait T2 = T3;
+ | ^^^^^^^^
+note: ...which requires computing the super traits of `T2`...
+ --> $DIR/infinite-trait-alias-recursion.rs:6:12
+ |
+LL | trait T2 = T3;
+ | ^^
+note: ...which requires computing the super predicates of `T3`...
+ --> $DIR/infinite-trait-alias-recursion.rs:8:1
+ |
+LL | trait T3 = T1 + T3;
+ | ^^^^^^^^
+note: ...which requires computing the super traits of `T3`...
+ --> $DIR/infinite-trait-alias-recursion.rs:8:12
+ |
+LL | trait T3 = T1 + T3;
+ | ^^
+ = note: ...which again requires computing the super predicates of `T1`, completing the cycle
+ = note: trait aliases cannot be recursive
+note: cycle used when collecting item types in top-level module
+ --> $DIR/infinite-trait-alias-recursion.rs:3:1
+ |
+LL | trait T1 = T2;
+ | ^^^^^^^^^^^^^^
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0391`.