create mode 100644 src/result.hpp
 create mode 100644 std/event/fs.zig
 create mode 100644 std/event/rwlock.zig
 create mode 100644 std/event/rwlocked.zig
 create mode 100644 std/mutex.zig
 create mode 100644 std/rb.zig
 create mode 100644 test/cases/bugs/1277.zig