The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/platform/crosvm/+/2200604d9c101888df658f9483290a13952c6b1c

commit 2200604d9c101888df658f9483290a13952c6b1c
Author: Daniel Prilik <prilik@google.com>
Date: Fri Jan 18 04:20:50 2019

remove rand crate

the few uses of rand::thread_rng() have been replaced with either
prngs or reads from /dev/urandom. the implementations are under
the `rand_ish` minicrate.

`protoc-rust` depends on `tempdir`, which relies on rand, so
`tempdir` has been patched with a rewritten version that does not
have rand as a dependency.

BUG= chromium:921795 
TEST=cargo test --features plugin

Change-Id: I6f1c7d7a1aeef4dd55ac71e58294d16c291b8871
Reviewed-on: https://chromium-review.googlesource.com/1409705
Commit-Ready: Daniel Prilik <prilik@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Zach Reizner <zachr@chromium.org>

[modify] https://crrev.com/2200604d9c101888df658f9483290a13952c6b1c/src/main.rs
[modify] https://crrev.com/2200604d9c101888df658f9483290a13952c6b1c/src/linux.rs
[add] https://crrev.com/2200604d9c101888df658f9483290a13952c6b1c/tempdir/src/lib.rs
[add] https://crrev.com/2200604d9c101888df658f9483290a13952c6b1c/tempdir/Cargo.toml
[modify] https://crrev.com/2200604d9c101888df658f9483290a13952c6b1c/Cargo.lock
[modify] https://crrev.com/2200604d9c101888df658f9483290a13952c6b1c/Cargo.toml
[add] https://crrev.com/2200604d9c101888df658f9483290a13952c6b1c/rand_ish/src/lib.rs
[add] https://crrev.com/2200604d9c101888df658f9483290a13952c6b1c/rand_ish/Cargo.toml
[modify] https://crrev.com/2200604d9c101888df658f9483290a13952c6b1c/tests/plugins.rs