Exclude pre-1.60 crates from workspace (#1380)

Pre-1.60 crates can't be used in workspaces with other crates that use
namespaced/weak features.

This commit places all MSRV 1.60+ crates into `members` and moves the
ones with earlier MSRVs into `exclude`.

.github/workflows/async-signature.yml

@@ -39,10 +39,9 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: RustCrypto/actions/cargo-cache@master
-      - uses: dtolnay/rust-toolchain@master
-        with:
-          toolchain: nightly
+      - uses: dtolnay/rust-toolchain@nightly
+      - run: cargo update -Z minimal-versions
+      - uses: dtolnay/rust-toolchain@stable
       - uses: RustCrypto/actions/cargo-hack-install@master
       - run: rm ../../Cargo.toml
-      - run: cargo update -Z minimal-versions
       - run: cargo hack test --release --feature-powerset

.github/workflows/crypto.yml

@@ -67,14 +67,3 @@ jobs:
       - run: cargo test --no-default-features --release
       - run: cargo test --release
       - run: cargo test --all-features --release
-
-  clippy:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - uses: RustCrypto/actions/cargo-cache@master
-      - uses: dtolnay/rust-toolchain@master
-        with:
-          toolchain: 1.65.0
-          components: clippy
-      - run: cargo clippy --all --all-features -- -D warnings

.github/workflows/universal-hash.yml

@@ -34,8 +34,6 @@ jobs:
         with:
           toolchain: ${{ matrix.rust }}
           targets: ${{ matrix.target }}
-      # Isolate this crate from workspace which is otherwise MSRV 1.56 due to 2021 edition crates
-      - run: rm ../Cargo.toml
       - run: cargo build --no-default-features --release --target ${{ matrix.target }}
 
   minimal-versions:
@@ -56,8 +54,6 @@ jobs:
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ matrix.rust }}
-      # Isolate this crate from workspace which is otherwise MSRV 1.56 due to 2021 edition crates
-      - run: rm ../Cargo.toml
       - run: cargo check --all-features
       - run: cargo test --no-default-features --release
       - run: cargo test --release