ci: Only pin time version on MSRV

Fixes failures

Author: Techcable

.github/workflows/test.yml

@@ -29,9 +29,10 @@ jobs:
       fail-fast: false # Even if one job fails we still want to see the other ones
       matrix:
         # 1.63 is MSRV. Keep in sync with Cargo.toml
+        # NOTE: Currently need to pin a specific `time` version for MSRV
         rust: [1.63, stable, nightly]
         # NOTE: Features to test must be specified manually. They are applied to all versions separately.
-       #
+      #
         # This has the advantage of being more flexible and thorough
         # This has the disadvantage of being more verbose
         #
@@ -53,10 +54,14 @@ jobs:
           key: ${{ runner.os }}-cargo-${{ matrix.rust }}
           restore-keys: |
             ${{ runner.os }}-cargo-
+      - run: cargo update
+      # Pin a time version with a compatible MSRV
+      - name: Pin time version
+        if: ${{ matrix.rust != 'nightly' && matrix.rust != 'stable' }}
+        run: |
+          cargo update --package time --precise 0.3.20
       # NOTE: We only run `cargo test`. No need for a separate `cargo check`
       - name: Test
         run: |
-          # Pin a time version with a compatible MSRV
-          cargo update --package time --precise 0.3.20
-          cargo test --locked --verbose --features "${{ matrix.features }}"
+          cargo test --all --verbose --locked --features "${{ matrix.features }}"