|  | error[E0391]: cycle detected when computing the implied predicates of `T1` | 
|  | --> $DIR/infinite-trait-alias-recursion.rs:3:12 | 
|  | | | 
|  | LL | trait T1 = T2; | 
|  | |            ^^ | 
|  | | | 
|  | note: ...which requires computing the implied predicates of `T2`... | 
|  | --> $DIR/infinite-trait-alias-recursion.rs:6:12 | 
|  | | | 
|  | LL | trait T2 = T3; | 
|  | |            ^^ | 
|  | note: ...which requires computing the implied predicates of `T3`... | 
|  | --> $DIR/infinite-trait-alias-recursion.rs:8:12 | 
|  | | | 
|  | LL | trait T3 = T1 + T3; | 
|  | |            ^^ | 
|  | = note: ...which again requires computing the implied predicates of `T1`, completing the cycle | 
|  | = note: trait aliases cannot be recursive | 
|  | note: cycle used when checking that `T1` is well-formed | 
|  | --> $DIR/infinite-trait-alias-recursion.rs:3:1 | 
|  | | | 
|  | LL | trait T1 = T2; | 
|  | | ^^^^^^^^ | 
|  | = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information | 
|  |  | 
|  | error: aborting due to 1 previous error | 
|  |  | 
|  | For more information about this error, try `rustc --explain E0391`. |