rustc-1.39.0 Build 6100717

This rust prebuilt is only intended to help roll us forwards to 1.40,
and so does not include an update to the Android.bp file to use the new
prebuilts or build a new sysroot.

As rustc-1.38.0 is was not used to build Android, we remove it at the
same time.

Bug: 146571186
Change-Id: If1ed218db1283ab4be5fb33c1896542d818a7af8
2094 files changed
tree: db8d9d386281105eae391b3915227b3f26737a21
  1. bootstrap/
  2. darwin-x86/
  3. linux-x86/