Auto merge of rust-lang#119229 - mati865:update-mingw-toolchain, r=<try>

Update mingw-w64 + GNU toolchain

Let's see if it works.

Author: bors

.github/workflows/ci.yml

@@ -579,10 +579,13 @@ jobs:
     strategy:
       matrix:
         include:
-          - name: dist-x86_64-linux
+          - name: i686-mingw
             env:
-              CODEGEN_BACKENDS: "llvm,cranelift"
-            os: ubuntu-20.04-16core-64gb
+              RUST_CONFIGURE_ARGS: "--build=i686-pc-windows-gnu"
+              SCRIPT: make ci-mingw
+              NO_DOWNLOAD_CI_LLVM: 1
+              CUSTOM_MINGW: 1
+            os: windows-2019-8core-32gb
     timeout-minutes: 600
     runs-on: "${{ matrix.os }}"
     steps:

src/ci/github-actions/ci.yml

@@ -732,12 +732,15 @@ jobs:
     strategy:
       matrix:
         include:
-          - &dist-x86_64-linux
-            name: dist-x86_64-linux
+          - name: i686-mingw
             env:
-              CODEGEN_BACKENDS: llvm,cranelift
-            <<: *job-linux-16c
-
+              RUST_CONFIGURE_ARGS: --build=i686-pc-windows-gnu
+              SCRIPT: make ci-mingw
+              # We are intentionally allowing an old toolchain on this builder (and that's
+              # incompatible with LLVM downloads today).
+              NO_DOWNLOAD_CI_LLVM: 1
+              CUSTOM_MINGW: 1
+            <<: *job-windows-8c
 
   master:
     name: master

src/ci/scripts/install-mingw.sh

@@ -9,8 +9,8 @@ IFS=$'\n\t'
 
 source "$(cd "$(dirname "$0")" && pwd)/../shared.sh"
 
-MINGW_ARCHIVE_32="i686-12.2.0-release-posix-dwarf-rt_v10-rev0.7z"
-MINGW_ARCHIVE_64="x86_64-12.2.0-release-posix-seh-rt_v10-rev0.7z"
+MINGW_ARCHIVE_32="i686-w64-mingw32.tar.zst"
+MINGW_ARCHIVE_64="x86_64-w64-mingw32.tar.zst"
 
 if isWindows; then
     case "${CI_JOB_NAME}" in
@@ -44,10 +44,10 @@ if isWindows; then
             mingw-w64-$arch-python # the python package is actually for python3
         ciCommandAddPath "$(ciCheckoutPath)/msys2/mingw${bits}/bin"
     else
-        mingw_dir="mingw${bits}"
-
-        curl -o mingw.7z "${MIRRORS_BASE}/${mingw_archive}"
-        7z x -y mingw.7z > /dev/null
-        ciCommandAddPath "$(pwd)/${mingw_dir}/bin"
+        url="https://github.com/mati865/mingw-build/releases/download/v0"
+        curl -L -o mingw.tar.zst "${url}/${mingw_archive}"
+        tar -xf mingw.tar.zst
+        ciCommandAddPath "$(pwd)/${arch}-w64-mingw32/bin"
+        ciCommandAddPath "$(pwd)/${arch}-w64-mingw32/${arch}-w64-mingw32/bin"
     fi
 fi