error: unsupported operation: can't call foreign function: __rust_alloc
  --> $DIR/no_global_allocator.rs:LL:CC
   |
LL |         __rust_alloc(1, 1);
   |         ^^^^^^^^^^^^^^^^^^ can't call foreign function: __rust_alloc
   |
   = help: this is likely not a bug in the program; it indicates that the program performed an operation that the interpreter does not support
   = note: BACKTRACE:
   = note: inside `start` at $DIR/no_global_allocator.rs:LL:CC

error: aborting due to previous error