Initial Darwin Rust Toolchain 1.37.0

Unlike, the Linux toolchain, the darwin toolchain is being established
using a prebuilt downloaded from rust-lang.org.

The tarball rust-1.37.0-x86_64-apple-darwin.tar.gz with hash
b2310c97ffb964f253c4088c8d29865f876a49da2a45305493af5b5c7a3ca73d
was retrieved and installed into the 1.37.0 directory via

./install.sh --destdir=../1.37.0 --prefix=/ \
  --components=rustc,cargo,rust-std-x86_64-apple-darwin

Future versions of the Darwin toolchain will be built on Android
infrastructure chaining forwards from this one.

Bug: 140571190
Change-Id: Ic32879ffd6542d17308e37aa018a353f486d3362
229 files changed
tree: 740d407f1fec7f0341a9e3a4df502c082a9e3e17
  1. bootstrap/
  2. darwin-x86/
  3. linux-x86/