Update Rust syntax to c1d64297f0.
Update Rust syntax to 18099fe085.
Update Rust syntax files to 66abb92a47.
Update Rust syntax to b50b162884.
Update Rust syntax to c9eed5742e15e8c6ee24376970623a246477b8f0.
Merge branch 'master' into plugins

* master:
  Update Rust syntax to c9eed5742e15e8c6ee24376970623a246477b8f0.
  Update Rust syntax to b50b162884.
  Update Rust syntax files to 66abb92a47.
  Update Rust syntax to 18099fe085.
  Update Rust syntax to c1d64297f0.