tests/ui/extenv/extenv-not-defined-default.stderr

   1 error: environment variable `CARGO__HOPEFULLY_NOT_DEFINED__` not defined at compile time
   2   --> $DIR/extenv-not-defined-default.rs:2:5
   3    |
   4 LL |     env!("CARGO__HOPEFULLY_NOT_DEFINED__");
   5    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   6    |
   7    = help: Cargo sets build script variables at run time. Use `std::env::var("CARGO__HOPEFULLY_NOT_DEFINED__")` instead
   8    = note: this error originates in the macro `env` (in Nightly builds, run with -Z macro-backtrace for more info)
   9
  10 error: aborting due to previous error
  11