chore: downgrade to Rust 1.69 (denoland#19407)

.github/workflows/ci.generate.ts

@@ -5,7 +5,7 @@ import * as yaml from "https://deno.land/[email protected]/encoding/yaml.ts";
 // Bump this number when you want to purge the cache.
 // Note: the tools/release/01_bump_crate_versions.ts script will update this version
 // automatically via regex, so ensure that this line maintains this format.
-const cacheVersion = 34;
+const cacheVersion = 35;
 
 const Runners = (() => {
  const ubuntuRunner = "ubuntu-22.04";
@@ -24,16 +24,16 @@ const prCacheKeyPrefix =
  `${cacheVersion}-cargo-target-\${{ matrix.os }}-\${{ matrix.profile }}-\${{ matrix.job }}-`;
 
 const installPkgsCommand =
- "sudo apt-get install --no-install-recommends debootstrap clang-16 lld-16";
+ "sudo apt-get install --no-install-recommends debootstrap clang-15 lld-15";
 const sysRootStep = {
  name: "Set up incremental LTO and sysroot build",
  run: `# Avoid running man-db triggers, which sometimes takes several minutes
 # to complete.
 sudo apt-get remove --purge -y man-db
 
-# Install clang-16, lld-16, and debootstrap.
-echo "deb http:https://apt.llvm.org/jammy/ llvm-toolchain-jammy-16 main" |
- sudo dd of=/etc/apt/sources.list.d/llvm-toolchain-jammy-16.list
+# Install clang-15, lld-15, and debootstrap.
+echo "deb http:https://apt.llvm.org/jammy/ llvm-toolchain-jammy-15 main" |
+ sudo dd of=/etc/apt/sources.list.d/llvm-toolchain-jammy-15.list
 curl https://apt.llvm.org/llvm-snapshot.gpg.key |
  gpg --dearmor |
 sudo dd of=/etc/apt/trusted.gpg.d/llvm-snapshot.gpg
@@ -70,8 +70,8 @@ CARGO_PROFILE_RELEASE_INCREMENTAL=false
 CARGO_PROFILE_RELEASE_LTO=false
 RUSTFLAGS<<__1
  -C linker-plugin-lto=true
- -C linker=clang-16
- -C link-arg=-fuse-ld=lld-16
+ -C linker=clang-15
+ -C link-arg=-fuse-ld=lld-15
  -C link-arg=--sysroot=/sysroot
  -C link-arg=-ldl
  -C link-arg=-Wl,--allow-shlib-undefined
@@ -81,16 +81,16 @@ RUSTFLAGS<<__1
 __1
 RUSTDOCFLAGS<<__1
  -C linker-plugin-lto=true
- -C linker=clang-16
- -C link-arg=-fuse-ld=lld-16
+ -C linker=clang-15
+ -C link-arg=-fuse-ld=lld-15
  -C link-arg=--sysroot=/sysroot
  -C link-arg=-ldl
  -C link-arg=-Wl,--allow-shlib-undefined
  -C link-arg=-Wl,--thinlto-cache-dir=$(pwd)/target/release/lto-cache
  -C link-arg=-Wl,--thinlto-cache-policy,cache_size_bytes=700m
  \${{ env.RUSTFLAGS }}
 __1
-CC=clang-16
+CC=clang-15
 CFLAGS=-flto=thin --sysroot=/sysroot
 __0`,
 };

.github/workflows/ci.yml

@@ -210,15 +210,15 @@ jobs:
  # to complete.
  sudo apt-get remove --purge -y man-db
 
- # Install clang-16, lld-16, and debootstrap.
- echo "deb http:https://apt.llvm.org/jammy/ llvm-toolchain-jammy-16 main" |
- sudo dd of=/etc/apt/sources.list.d/llvm-toolchain-jammy-16.list
+ # Install clang-15, lld-15, and debootstrap.
+ echo "deb http:https://apt.llvm.org/jammy/ llvm-toolchain-jammy-15 main" |
+ sudo dd of=/etc/apt/sources.list.d/llvm-toolchain-jammy-15.list
  curl https://apt.llvm.org/llvm-snapshot.gpg.key |
  gpg --dearmor |
  sudo dd of=/etc/apt/trusted.gpg.d/llvm-snapshot.gpg
  sudo apt-get update
  # this was unreliable sometimes, so try again if it fails
- sudo apt-get install --no-install-recommends debootstrap clang-16 lld-16 || echo 'Failed. Trying again.' && sudo apt-get clean && sudo apt-get update && sudo apt-get install --no-install-recommends debootstrap clang-16 lld-16
+ sudo apt-get install --no-install-recommends debootstrap clang-15 lld-15 || echo 'Failed. Trying again.' && sudo apt-get clean && sudo apt-get update && sudo apt-get install --no-install-recommends debootstrap clang-15 lld-15
 
  # Create ubuntu-16.04 sysroot environment, which is used to avoid
  # depending on a very recent version of glibc.
@@ -249,8 +249,8 @@ jobs:
  CARGO_PROFILE_RELEASE_LTO=false
  RUSTFLAGS<<__1
  -C linker-plugin-lto=true
- -C linker=clang-16
- -C link-arg=-fuse-ld=lld-16
+ -C linker=clang-15
+ -C link-arg=-fuse-ld=lld-15
  -C link-arg=--sysroot=/sysroot
  -C link-arg=-ldl
  -C link-arg=-Wl,--allow-shlib-undefined
@@ -260,16 +260,16 @@ jobs:
  __1
  RUSTDOCFLAGS<<__1
  -C linker-plugin-lto=true
- -C linker=clang-16
- -C link-arg=-fuse-ld=lld-16
+ -C linker=clang-15
+ -C link-arg=-fuse-ld=lld-15
  -C link-arg=--sysroot=/sysroot
  -C link-arg=-ldl
  -C link-arg=-Wl,--allow-shlib-undefined
  -C link-arg=-Wl,--thinlto-cache-dir=$(pwd)/target/release/lto-cache
  -C link-arg=-Wl,--thinlto-cache-policy,cache_size_bytes=700m
  ${{ env.RUSTFLAGS }}
  __1
- CC=clang-16
+ CC=clang-15
  CFLAGS=-flto=thin --sysroot=/sysroot
  __0
  - name: Log versions
@@ -293,7 +293,7 @@ jobs:
  ~/.cargo/registry/index
  ~/.cargo/registry/cache
  ~/.cargo/git/db
- key: '34-cargo-home-${{ matrix.os }}-${{ hashFiles(''Cargo.lock'') }}'
+ key: '35-cargo-home-${{ matrix.os }}-${{ hashFiles(''Cargo.lock'') }}'
  if: '!(github.event_name == ''pull_request'' && matrix.skip_pr)'
  - name: Restore cache build output (PR)
  uses: actions/cache/restore@v3
@@ -305,7 +305,7 @@ jobs:
  !./target/*/*.zip
  !./target/*/*.tar.gz
  key: never_saved
- restore-keys: '34-cargo-target-${{ matrix.os }}-${{ matrix.profile }}-${{ matrix.job }}-'
+ restore-keys: '35-cargo-target-${{ matrix.os }}-${{ matrix.profile }}-${{ matrix.job }}-'
  - name: Apply and update mtime cache
  if: '!(github.event_name == ''pull_request'' && matrix.skip_pr) && (!startsWith(github.ref, ''refs/tags/''))'
  uses: ./.github/mtime_cache
@@ -589,7 +589,7 @@ jobs:
  !./target/*/gn_out
  !./target/*/*.zip
  !./target/*/*.tar.gz
- key: '34-cargo-target-${{ matrix.os }}-${{ matrix.profile }}-${{ matrix.job }}-${{ github.sha }}'
+ key: '35-cargo-target-${{ matrix.os }}-${{ matrix.profile }}-${{ matrix.job }}-${{ github.sha }}'
  publish-canary:
  name: publish canary
  runs-on: ubuntu-22.04

ext/ffi/Cargo.toml

@@ -17,7 +17,8 @@ path = "lib.rs"
 deno_core.workspace = true
 dlopen.workspace = true
 dynasmrt = "1.2.3"
-libffi = "3.2.0"
+libffi = "=3.1.0"
+libffi-sys = "=2.1.0" # temporary pin for downgrade to Rust 1.69
 serde.workspace = true
 serde-value = "0.7"
 serde_json = "1.0"

rust-toolchain.toml

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "1.70.0"
+channel = "1.69.0"
 components = ["rustfmt", "clippy"]