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error[E0080]: could not evaluate static initializer
  --> $DIR/write-to-static-mut-in-static.rs:2:33
   |
LL | pub static mut B: () = unsafe { A = 1; };
   |                                 ^^^^^ modifying a static's initial value from another static's initializer

error[E0391]: cycle detected when const-evaluating + checking `C`
  --> $DIR/write-to-static-mut-in-static.rs:5:1
   |
LL | pub static mut C: u32 = unsafe { C = 1; 0 };
   | ^^^^^^^^^^^^^^^^^^^^^
   |
note: ...which requires const-evaluating + checking `C`...
  --> $DIR/write-to-static-mut-in-static.rs:5:34
   |
LL | pub static mut C: u32 = unsafe { C = 1; 0 };
   |                                  ^^^^^
   = note: ...which again requires const-evaluating + checking `C`, completing the cycle
note: cycle used when linting top-level module
  --> $DIR/write-to-static-mut-in-static.rs:1:1
   |
LL | / pub static mut A: u32 = 0;
LL | | pub static mut B: () = unsafe { A = 1; };
LL | |
LL | |
...  |
LL | |
LL | | fn main() {}
   | |____________^
   = 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 2 previous errors

Some errors have detailed explanations: E0080, E0391.
For more information about an error, try `rustc --explain E0080`.