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error[E0391]: cycle detected when simplifying constant for the type system `Tr::A`
--> $DIR/defaults-cyclic-fail.rs:5:5
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LL | const A: u8 = Self::B;
| ^^^^^^^^^^^
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note: ...which requires const-evaluating + checking `Tr::A`...
--> $DIR/defaults-cyclic-fail.rs:5:19
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LL | const A: u8 = Self::B;
| ^^^^^^^
note: ...which requires simplifying constant for the type system `Tr::B`...
--> $DIR/defaults-cyclic-fail.rs:8:5
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LL | const B: u8 = Self::A;
| ^^^^^^^^^^^
note: ...which requires const-evaluating + checking `Tr::B`...
--> $DIR/defaults-cyclic-fail.rs:8:19
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LL | const B: u8 = Self::A;
| ^^^^^^^
= note: ...which again requires simplifying constant for the type system `Tr::A`, completing the cycle
note: cycle used when const-evaluating + checking `main::promoted[1]`
--> $DIR/defaults-cyclic-fail.rs:16:16
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LL | assert_eq!(<() as Tr>::A, 0);
| ^^^^^^^^^^^^^
= 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`.
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