Test MSRV with --all-features

.github/workflows/ci.yml

@@ -14,16 +14,12 @@ jobs:
           - nightly
         include:
           - rust: 1.65.0
-            test_features: ""
             allow_failure: false
           - rust: stable
-            test_features: "--all-features"
             allow_failure: false
           - rust: beta
-            test_features: "--all-features"
             allow_failure: false
           - rust: nightly
-            test_features: "--all-features"
             allow_failure: true
       fail-fast: false
     steps:
@@ -38,7 +34,7 @@ jobs:
         continue-on-error: ${{ matrix.allow_failure }}
         working-directory: ./schemars
       - name: Run tests
-        run: cargo test --verbose ${{ matrix.test_features }} --no-fail-fast
+        run: cargo test --verbose --all-features --no-fail-fast
         continue-on-error: ${{ matrix.allow_failure }}
         working-directory: ./schemars
       - name: Run derive tests

schemars/tests/indexmap.rs

@@ -1,5 +1,5 @@
 mod util;
-use std::hash::RandomState;
+use std::collections::hash_map::RandomState;
 
 use indexmap2::{IndexMap, IndexSet};
 use schemars::JsonSchema;