Work around rustup bustage in mach bootstrap (servo/servo#35795) (#27)

Author: delan

macos13/init.sh

@@ -43,6 +43,10 @@ export PATH=$HOME/.local/bin:$PATH
 
 if ! [ -e /Volumes/a/init/built_servo_once_successfully ]; then
     cd /Volumes/a/a/servo/servo
+
+    # Install the Rust toolchain, for checkouts without servo#35795
+    rustup show active-toolchain || rustup toolchain install
+
     ./mach bootstrap --force
     # Build the same way as a typical macOS libservo job, to allow for incremental builds.
     cargo build -p libservo --all-targets --release --target-dir target/libservo

ubuntu2204-wpt/init.sh

@@ -9,9 +9,9 @@ if ! dpkg -s "$@" > /dev/null 2>&1; then
     apt install -y "$@"
 fi
 
-# Install rustup and Rust 1.80.1
+# Install rustup and the latest Rust
 if ! [ -e /root/.rustup ]; then
-    /init/rustup-init.sh --default-toolchain 1.80.1 -y --quiet
+    /init/rustup-init.sh -y --quiet
 fi
 
 # ~/.cargo/env requires HOME to be set
@@ -47,6 +47,10 @@ export PATH=$HOME/.local/bin:$PATH
 
 if ! [ -e /init/built_servo_once_successfully ]; then
     cd /a/servo/servo
+
+    # Install the Rust toolchain, for checkouts without servo#35795
+    rustup show active-toolchain || rustup toolchain install
+
     ./mach bootstrap --force
     # Build the same way as a typical Linux build job, to allow for incremental builds.
     export CARGO_LOG=cargo::core::compiler::fingerprint=info

ubuntu2204/init.sh

@@ -9,9 +9,9 @@ if ! dpkg -s "$@" > /dev/null 2>&1; then
     apt install -y "$@"
 fi
 
-# Install rustup and Rust 1.80.1
+# Install rustup and the latest Rust
 if ! [ -e /root/.rustup ]; then
-    /init/rustup-init.sh --default-toolchain 1.80.1 -y --quiet
+    /init/rustup-init.sh -y --quiet
 fi
 
 # ~/.cargo/env requires HOME to be set
@@ -43,6 +43,10 @@ export PATH=$HOME/.local/bin:$PATH
 
 if ! [ -e /init/built_servo_once_successfully ]; then
     cd /a/servo/servo
+
+    # Install the Rust toolchain, for checkouts without servo#35795
+    rustup show active-toolchain || rustup toolchain install
+
     ./mach bootstrap --force
     # Build the same way as a typical Linux libservo job, to allow for incremental builds.
     cargo build -p libservo --all-targets --release --target-dir target/libservo

windows10/init.ps1

@@ -35,9 +35,9 @@ if (!(Test-Path C:\Users\Administrator\.local\bin\uv.exe)) {
     . C:\init\install-uv.ps1
 }
 
-# Install rustup and Rust 1.80.1
+# Install rustup and the latest Rust
 if (!(Test-Path C:\Users\Administrator\.rustup)) {
-    C:\init\rustup-init.exe --default-toolchain 1.80.1 -y --quiet
+    C:\init\rustup-init.exe -y --quiet
 }
 
 # Install .NET 4.8 for Chocolatey

windows10/warm.ps1

@@ -15,6 +15,12 @@ git reset --hard
 choco install -y support\windows\chocolatey.config
 . C:\init\refreshenv.ps1
 
+# Install the Rust toolchain, for checkouts without servo#35795
+rustup show active-toolchain
+if ($LASTEXITCODE -ne 0) {
+    rustup toolchain install
+}
+
 .\mach bootstrap --skip-platform
 
 # Save a copy of the environment variables that can break incremental builds, for debugging.