error: unsupported operation: creating allocation with alignment ALIGN exceeding rustc's maximum supported value
  --> tests/fail/alloc/unsupported_big_alignment.rs:LL:CC
   |
LL |         __rust_alloc(1, 1 << 30);
   |         ^^^^^^^^^^^^^^^^^^^^^^^^ unsupported operation occurred here
   |
   = help: this is likely not a bug in the program; it indicates that the program performed an operation that Miri does not support
   = note: BACKTRACE:
   = note: inside `main` at tests/fail/alloc/unsupported_big_alignment.rs:LL:CC

note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace

error: aborting due to 1 previous error