lib/compiler/build_runner.zig |   1 -
 lib/std/Io.zig                |   9 ++
 lib/std/Io/Threaded.zig       | 257 ++++++++++++++++++++++++++++++--
 lib/std/Io/test.zig           |  11 ++
 lib/std/Random.zig            |   4 +-
 lib/std/crypto.zig            |  11 --
 lib/std/crypto/tlcsprng.zig   | 169 ---------------------
 lib/std/posix.zig             | 101 -------------
 lib/std/std.zig               |   6 -
 9 files changed, 263 insertions(+), 306 deletions(-)