error[E0391]: cycle detected when simplifying constant for the type system `TRAIT_REF_BAR`
  --> $DIR/issue-24949-assoc-const-static-recursion-trait.rs:7:1
   |
LL | const TRAIT_REF_BAR: u32 = <GlobalTraitRef>::BAR;
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
note: ...which requires simplifying constant for the type system `TRAIT_REF_BAR`...
  --> $DIR/issue-24949-assoc-const-static-recursion-trait.rs:7:1
   |
LL | const TRAIT_REF_BAR: u32 = <GlobalTraitRef>::BAR;
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: ...which requires const-evaluating + checking `TRAIT_REF_BAR`...
  --> $DIR/issue-24949-assoc-const-static-recursion-trait.rs:7:1
   |
LL | const TRAIT_REF_BAR: u32 = <GlobalTraitRef>::BAR;
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   = note: ...which requires normalizing `<GlobalTraitRef as Foo>::BAR`...
note: ...which requires simplifying constant for the type system `<impl at $DIR/issue-24949-assoc-const-static-recursion-trait.rs:11:1: 13:2>::BAR`...
  --> $DIR/issue-24949-assoc-const-static-recursion-trait.rs:12:5
   |
LL |     const BAR: u32 = TRAIT_REF_BAR;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: ...which requires simplifying constant for the type system `<impl at $DIR/issue-24949-assoc-const-static-recursion-trait.rs:11:1: 13:2>::BAR`...
  --> $DIR/issue-24949-assoc-const-static-recursion-trait.rs:12:5
   |
LL |     const BAR: u32 = TRAIT_REF_BAR;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: ...which requires const-evaluating + checking `<impl at $DIR/issue-24949-assoc-const-static-recursion-trait.rs:11:1: 13:2>::BAR`...
  --> $DIR/issue-24949-assoc-const-static-recursion-trait.rs:12:5
   |
LL |     const BAR: u32 = TRAIT_REF_BAR;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: ...which requires caching mir of `<impl at $DIR/issue-24949-assoc-const-static-recursion-trait.rs:11:1: 13:2>::BAR` for CTFE...
  --> $DIR/issue-24949-assoc-const-static-recursion-trait.rs:12:5
   |
LL |     const BAR: u32 = TRAIT_REF_BAR;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   = note: ...which requires normalizing `TRAIT_REF_BAR`...
   = note: ...which again requires simplifying constant for the type system `TRAIT_REF_BAR`, completing the cycle
   = note: cycle used when running analysis passes on this crate

error: aborting due to previous error

For more information about this error, try `rustc --explain E0391`.