Pin WASM / packed SIMD tests to nightly-2022-01-17 (#1204)

Author: alamb

.github/workflows/rust.yml

@@ -131,7 +131,8 @@ jobs:
  strategy:
  matrix:
  arch: [amd64]
- rust: [nightly]
+ # pin nightly until https://github.com/rust-lang/packed_simd/pull/341 is resolved
+ rust: [nightly-2022-01-17]
  container:
  image: ${{ matrix.arch }}/rust
  env:
@@ -345,7 +346,8 @@ jobs:
  strategy:
  matrix:
  arch: [amd64]
- rust: [nightly]
+ # pin nightly until https://github.com/rust-lang/packed_simd/pull/341 is resolved
+ rust: [nightly-2022-01-17]
  container:
  image: ${{ matrix.arch }}/rust
  env: