fix nightly CI

.github/workflows/ci.yml

@@ -26,6 +26,24 @@ jobs:
  - name: Generate documentation
  run: cargo doc --all
 
+ doc-nightly:
+ runs-on: ubuntu-latest
+
+ steps:
+ - name: Checkout
+ uses: actions/checkout@v2
+
+ - name: Cache setup
+ uses: ./.github/actions/cache-setup
+
+ - name: Install cargo-deadlinks
+ run: which deadlinks || cargo install cargo-deadlinks
+
+ - name: Generate documentation
+ run: |
+ rustup install nightly
+ cargo +nightly doc --all
+
  # temporarily disabled.
  # - name: Validate links
  # run: cargo deadlinks --dir target/doc/glommio
@@ -54,8 +72,9 @@ jobs:
  uses: ./.github/actions/cache-setup
 
  - name: Build all targets on the nigthly channel
- run: cargo +nightly build --all --all-targets --features=nightly
-
+ run: >
+ rustup install nightly;
+ cargo +nightly build --all --all-targets --features=nightly
 
  test:
  runs-on: ubuntu-latest
@@ -100,6 +119,7 @@ jobs:
  rustup install nightly
  rustup component add rustfmt --toolchain nightly-x86_64-unknown-linux-gnu
  rustup install 1.58
+ cargo install cargo-sort
  rustup show
  cargo +nightly test --features=nightly -- --test-threads=`nproc`
  EOF