v0.8: Prepare for the next release

.github/workflows/ci.yml

@@ -30,9 +30,9 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - rust: '1.38'
+          - rust: '1.61'
             os: ubuntu-latest
-          - rust: '1.38'
+          - rust: '1.61'
             os: windows-latest
           - rust: stable
             os: ubuntu-latest
@@ -54,10 +54,10 @@ jobs:
           # Test 32-bit target that does not have AtomicU64/AtomicI64.
           - rust: nightly
             os: ubuntu-latest
-            target: mips-unknown-linux-gnu
+            target: armv5te-unknown-linux-gnueabi
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Rust
         # --no-self-update is necessary because the windows environment cannot self-update rustup.exe.
         run: rustup update ${{ matrix.rust }} --no-self-update && rustup default ${{ matrix.rust }}
@@ -75,11 +75,11 @@ jobs:
       fail-fast: false
       matrix:
         rust:
-          - '1.38'
+          - '1.61'
           - nightly
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Rust
         run: rustup update ${{ matrix.rust }} && rustup default ${{ matrix.rust }}
       - name: Install cargo-hack
@@ -91,7 +91,7 @@ jobs:
   dependencies:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Rust
         run: rustup update nightly && rustup default nightly
       - name: Install cargo-hack
@@ -108,9 +108,9 @@ jobs:
       contents: write
       pull-requests: write
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Rust
-        run: rustup update nightly && rustup default nightly
+        run: rustup update stable
       - run: ci/no_atomic.sh
       - run: git add -N . && git diff --exit-code
         if: github.repository_owner != 'crossbeam-rs' || github.event_name != 'schedule'
@@ -141,7 +141,7 @@ jobs:
   rustfmt:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Rust
         run: rustup update stable
       - name: rustfmt
@@ -153,7 +153,7 @@ jobs:
   # clippy:
   #   runs-on: ubuntu-latest
   #   steps:
-  #     - uses: actions/checkout@v3
+  #     - uses: actions/checkout@v4
   #     - name: Install Rust
   #       run: rustup update stable
   #     - name: clippy
@@ -163,7 +163,7 @@ jobs:
   miri:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Rust
         run: rustup toolchain install nightly --component miri && rustup default nightly
       - name: miri
@@ -173,7 +173,7 @@ jobs:
   san:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Rust
         run: rustup update nightly && rustup default nightly
       - name: Run sanitizers
@@ -183,7 +183,7 @@ jobs:
   loom:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Rust
         run: rustup update stable
       - name: loom
@@ -193,7 +193,7 @@ jobs:
   docs:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Rust
         run: rustup update nightly && rustup default nightly
       - name: docs
@@ -202,7 +202,7 @@ jobs:
   shellcheck:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install shellcheck
         uses: taiki-e/install-action@shellcheck
       - run: shellcheck $(git ls-files '*.sh')

.github/workflows/release.yml

@@ -18,7 +18,7 @@ jobs:
     if: github.repository_owner == 'crossbeam-rs'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: taiki-e/create-gh-release-action@v1
         with:
           prefix: crossbeam(-[a-z]+)?

Cargo.toml

@@ -6,7 +6,7 @@ name = "crossbeam"
 # - Create "crossbeam-X.Y.Z" git tag
 version = "0.8.2"
 edition = "2018"
-rust-version = "1.38"
+rust-version = "1.61"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/crossbeam-rs/crossbeam"
 homepage = "https://github.com/crossbeam-rs/crossbeam"
@@ -44,31 +44,31 @@ nightly = ["crossbeam-epoch/nightly", "crossbeam-utils/nightly", "crossbeam-queu
 cfg-if = "1"
 
 [dependencies.crossbeam-channel]
-version = "0.5"
+version = "0.5.9"
 path = "./crossbeam-channel"
 default-features = false
 optional = true
 
 [dependencies.crossbeam-deque]
-version = "0.8"
+version = "0.8.4"
 path = "./crossbeam-deque"
 default-features = false
 optional = true
 
 [dependencies.crossbeam-epoch]
-version = "0.9.5"
+version = "0.9.16"
 path = "./crossbeam-epoch"
 default-features = false
 optional = true
 
 [dependencies.crossbeam-queue]
-version = "0.3.2"
+version = "0.3.9"
 path = "./crossbeam-queue"
 default-features = false
 optional = true
 
 [dependencies.crossbeam-utils]
-version = "0.8.5"
+version = "0.8.17"
 path = "./crossbeam-utils"
 default-features = false
 

README.md

@@ -8,7 +8,7 @@ https://github.com/crossbeam-rs/crossbeam#license)
 https://crates.io/crates/crossbeam)
 [![Documentation](https://docs.rs/crossbeam/badge.svg)](
 https://docs.rs/crossbeam)
-[![Rust 1.38+](https://img.shields.io/badge/rust-1.38+-lightgray.svg)](
+[![Rust 1.61+](https://img.shields.io/badge/rust-1.61+-lightgray.svg)](
 https://www.rust-lang.org)
 [![chat](https://img.shields.io/discord/569610676205781012.svg?logo=discord)](https://discord.com/invite/JXYwgWZ)
 
@@ -94,7 +94,7 @@ crossbeam = "0.8"
 
 Crossbeam supports stable Rust releases going back at least six months,
 and every time the minimum supported Rust version is increased, a new minor
-version is released. Currently, the minimum supported Rust version is 1.38.
+version is released. Currently, the minimum supported Rust version is 1.61.
 
 ## Contributing
 

ci/no_atomic.sh

@@ -10,30 +10,26 @@ cd "$(dirname "$0")"/..
 
 file="no_atomic.rs"
 
-no_atomic_cas=()
-no_atomic_64=()
 no_atomic=()
-for target in $(rustc --print target-list); do
-    target_spec=$(rustc --print target-spec-json -Z unstable-options --target "${target}")
+for target_spec in $(RUSTC_BOOTSTRAP=1 rustc +stable -Z unstable-options --print all-target-specs-json | jq -c '. | to_entries | .[]'); do
+    target=$(jq <<<"${target_spec}" -r '.key')
+    target_spec=$(jq <<<"${target_spec}" -c '.value')
     res=$(jq <<<"${target_spec}" -r 'select(."atomic-cas" == false)')
     [[ -z "${res}" ]] || no_atomic_cas+=("${target}")
     max_atomic_width=$(jq <<<"${target_spec}" -r '."max-atomic-width"')
     min_atomic_width=$(jq <<<"${target_spec}" -r '."min-atomic-width"')
     case "${max_atomic_width}" in
+        # `"max-atomic-width" == 0` means that atomic is not supported at all.
+        # We do not have a cfg for targets with {8,16}-bit atomic only, so
+        # for now we treat them the same as targets that do not support atomic.
+        0) no_atomic+=("${target}") ;;
         # It is not clear exactly what `"max-atomic-width" == null` means, but they
         # actually seem to have the same max-atomic-width as the target-pointer-width.
         # The targets currently included in this group are "mipsel-sony-psp",
         # "thumbv4t-none-eabi", "thumbv6m-none-eabi", all of which are
         # `"target-pointer-width" == "32"`, so assuming them `"max-atomic-width" == 32`
         # for now.
-        32 | null) no_atomic_64+=("${target}") ;;
-        # `"max-atomic-width" == 0` means that atomic is not supported at all.
-        0)
-            no_atomic_64+=("${target}")
-            no_atomic+=("${target}")
-            ;;
-        64 | 128) ;;
-        # There is no `"max-atomic-width" == 16` or `"max-atomic-width" == 8` targets.
+        null | 8 | 16 | 32 | 64 | 128) ;;
         *) exit 1 ;;
     esac
     case "${min_atomic_width}" in
@@ -46,24 +42,6 @@ cat >"${file}" <<EOF
 // This file is @generated by $(basename "$0").
 // It is not intended for manual editing.
 
-const NO_ATOMIC_CAS: &[&str] = &[
-EOF
-for target in "${no_atomic_cas[@]}"; do
-    echo "    \"${target}\"," >>"${file}"
-done
-cat >>"${file}" <<EOF
-];
-
-#[allow(dead_code)] // Only crossbeam-utils uses this.
-const NO_ATOMIC_64: &[&str] = &[
-EOF
-for target in "${no_atomic_64[@]}"; do
-    echo "    \"${target}\"," >>"${file}"
-done
-cat >>"${file}" <<EOF
-];
-
-#[allow(dead_code)] // Only crossbeam-utils uses this.
 const NO_ATOMIC: &[&str] = &[
 EOF
 for target in "${no_atomic[@]}"; do

crossbeam-channel/CHANGELOG.md

@@ -1,3 +1,7 @@
+# Version 0.5.9
+
+- Bump the minimum supported Rust version to 1.61. (#1037)
+
 # Version 0.5.8
 
 - Fix race condition in unbounded channel. (#972)

crossbeam-channel/Cargo.toml

@@ -4,9 +4,9 @@ name = "crossbeam-channel"
 # - Update CHANGELOG.md
 # - Update README.md
 # - Create "crossbeam-channel-X.Y.Z" git tag
-version = "0.5.8"
+version = "0.5.9"
 edition = "2018"
-rust-version = "1.38"
+rust-version = "1.61"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/crossbeam-rs/crossbeam"
 homepage = "https://github.com/crossbeam-rs/crossbeam/tree/master/crossbeam-channel"
@@ -27,7 +27,7 @@ std = ["crossbeam-utils/std"]
 cfg-if = "1"
 
 [dependencies.crossbeam-utils]
-version = "0.8"
+version = "0.8.17"
 path = "../crossbeam-utils"
 default-features = false
 optional = true

crossbeam-channel/README.md

@@ -8,7 +8,7 @@ https://github.com/crossbeam-rs/crossbeam/tree/master/crossbeam-channel#license)
 https://crates.io/crates/crossbeam-channel)
 [![Documentation](https://docs.rs/crossbeam-channel/badge.svg)](
 https://docs.rs/crossbeam-channel)
-[![Rust 1.38+](https://img.shields.io/badge/rust-1.38+-lightgray.svg)](
+[![Rust 1.61+](https://img.shields.io/badge/rust-1.61+-lightgray.svg)](
 https://www.rust-lang.org)
 [![chat](https://img.shields.io/discord/569610676205781012.svg?logo=discord)](https://discord.com/invite/JXYwgWZ)
 
@@ -48,7 +48,7 @@ crossbeam-channel = "0.5"
 
 Crossbeam Channel supports stable Rust releases going back at least six months,
 and every time the minimum supported Rust version is increased, a new minor
-version is released. Currently, the minimum supported Rust version is 1.38.
+version is released. Currently, the minimum supported Rust version is 1.61.
 
 ## License
 

crossbeam-deque/CHANGELOG.md

@@ -1,3 +1,7 @@
+# Version 0.8.4
+
+- Bump the minimum supported Rust version to 1.61. (#1037)
+
 # Version 0.8.3
 
 - Add `Stealer::{steal_batch_with_limit, steal_batch_with_limit_and_pop}` methods. (#903)

crossbeam-deque/Cargo.toml

@@ -4,9 +4,9 @@ name = "crossbeam-deque"
 # - Update CHANGELOG.md
 # - Update README.md
 # - Create "crossbeam-deque-X.Y.Z" git tag
-version = "0.8.3"
+version = "0.8.4"
 edition = "2018"
-rust-version = "1.38"
+rust-version = "1.61"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/crossbeam-rs/crossbeam"
 homepage = "https://github.com/crossbeam-rs/crossbeam/tree/master/crossbeam-deque"
@@ -27,13 +27,13 @@ std = ["crossbeam-epoch/std", "crossbeam-utils/std"]
 cfg-if = "1"
 
 [dependencies.crossbeam-epoch]
-version = "0.9"
+version = "0.9.16"
 path = "../crossbeam-epoch"
 default-features = false
 optional = true
 
 [dependencies.crossbeam-utils]
-version = "0.8"
+version = "0.8.17"
 path = "../crossbeam-utils"
 default-features = false
 optional = true

crossbeam-deque/README.md

@@ -8,7 +8,7 @@ https://github.com/crossbeam-rs/crossbeam/tree/master/crossbeam-deque#license)
 https://crates.io/crates/crossbeam-deque)
 [![Documentation](https://docs.rs/crossbeam-deque/badge.svg)](
 https://docs.rs/crossbeam-deque)
-[![Rust 1.38+](https://img.shields.io/badge/rust-1.38+-lightgray.svg)](
+[![Rust 1.61+](https://img.shields.io/badge/rust-1.61+-lightgray.svg)](
 https://www.rust-lang.org)
 [![chat](https://img.shields.io/discord/569610676205781012.svg?logo=discord)](https://discord.com/invite/JXYwgWZ)
 
@@ -28,7 +28,7 @@ crossbeam-deque = "0.8"
 
 Crossbeam Deque supports stable Rust releases going back at least six months,
 and every time the minimum supported Rust version is increased, a new minor
-version is released. Currently, the minimum supported Rust version is 1.38.
+version is released. Currently, the minimum supported Rust version is 1.61.
 
 ## License
 

crossbeam-deque/src/deque.rs

@@ -80,10 +80,7 @@ impl<T> Buffer<T> {
 
 impl<T> Clone for Buffer<T> {
     fn clone(&self) -> Buffer<T> {
-        Buffer {
-            ptr: self.ptr,
-            cap: self.cap,
-        }
+        *self
     }
 }
 

crossbeam-epoch/CHANGELOG.md

@@ -1,3 +1,11 @@
+# Version 0.9.16
+
+- Bump the minimum supported Rust version to 1.61. (#1037)
+- Improve support for targets without atomic CAS. (#1037)
+- Remove build script. (#1037)
+- Remove dependency on `scopeguard`. (#1045)
+- Update `loom` dependency to 0.7.
+
 # Version 0.9.15
 
 - Update `memoffset` to 0.9. (#981)