546         let checked_cstr = CStr::from_bytes_with_nul(good_bytes).unwrap();  in test_cstr_to_str()
547         let checked_str = checked_cstr.to_str().unwrap();  in test_cstr_to_str()
555         let checked_cstr = CStr::from_bytes_with_nul(bad_bytes).unwrap();  in test_cstr_to_str_panic()
556         checked_cstr.to_str().unwrap();  in test_cstr_to_str_panic()
562         let checked_cstr = CStr::from_bytes_with_nul(good_bytes).unwrap();  in test_cstr_as_str_unchecked()
569         let hello_world = CStr::from_bytes_with_nul(b"hello, world!\0").unwrap();  in test_cstr_display()
571         let non_printables = CStr::from_bytes_with_nul(b"\x01\x09\x0a\0").unwrap();  in test_cstr_display()
573         let non_ascii = CStr::from_bytes_with_nul(b"d\xe9j\xe0 vu\0").unwrap();  in test_cstr_display()
575         let good_bytes = CStr::from_bytes_with_nul(b"\xf0\x9f\xa6\x80\0").unwrap();  in test_cstr_display()
586         let cstr = CStr::from_bytes_with_nul(&bytes).unwrap();  in test_cstr_display_all_bytes()
592         let hello_world = CStr::from_bytes_with_nul(b"hello, world!\0").unwrap();  in test_cstr_debug()
594         let non_printables = CStr::from_bytes_with_nul(b"\x01\x09\x0a\0").unwrap();  in test_cstr_debug()
596         let non_ascii = CStr::from_bytes_with_nul(b"d\xe9j\xe0 vu\0").unwrap();  in test_cstr_debug()
598         let good_bytes = CStr::from_bytes_with_nul(b"\xf0\x9f\xa6\x80\0").unwrap();  in test_cstr_debug()