try fixing macos ci (#882)

* bump rust msrv to 1.75

* bump CI rust to 1.75

* remove big-endian tests

.github/workflows/ci.yml

@@ -39,14 +39,13 @@ jobs:
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: 1.74.0
+          toolchain: 1.75.0
           override: true
 
       - name: Rust Cache
         uses: Swatinem/rust-cache@82a92a6e8fbeee089604da2575dc567ae9ddeaab # v2.7.5
 
       - run: rustup target add wasm32-unknown-unknown
-      - run: rustup target add mips64-unknown-linux-muslabi64
 
       - name: Test no-default-features
         uses: actions-rs/cargo@v1
@@ -117,14 +116,6 @@ jobs:
           command: test
           args: -p bounded-collections --all-features
 
-      - name: Test uint on bigendian
-        if: runner.os == 'Linux'
-        uses: actions-rs/cargo@v1
-        with:
-          use-cross: true
-          command: test
-          args: -p uint --target=mips64-unknown-linux-muslabi64
-
   test_windows:
     name: Test Windows
     runs-on: windows-latest
@@ -144,7 +135,6 @@ jobs:
           command: test
           args: --workspace --exclude kvdb-rocksdb
 
-
   fmt:
     name: Rustfmt
     runs-on: ubuntu-latest

bounded-collections/Cargo.toml

@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 homepage = "https://github.com/paritytech/parity-common"
 description = "Bounded types and their supporting traits"
 edition = "2021"
-rust-version = "1.60.0"
+rust-version = "1.75.0"
 
 [dependencies]
 serde = { version = "1.0.101", default-features = false, optional = true, features=["alloc", "derive"] }