Bug 1772035 - Add cargo-vet toolchains. r=firefox-build-system-reviewers,andi

We won't need all of them immediately, but while we're here, we might as
well produce them all.

Differential Revision: https://phabricator.services.mozilla.com/D147820

taskcluster/ci/fetch/toolchains.yml

@@ -658,3 +658,10 @@ aflplusplus-4.0:
         type: git
         repo: https://github.com/AFLplusplus/AFLplusplus
         revision: ba3c7bfe40f9b17a691958e3525828385127ad25
+
+cargo-vet:
+    description: cargo-vet source
+    fetch:
+        type: git
+        repo: https://github.com/bholley/cargo-vet
+        revision: 1d5cd771cd1df8921a57b346a0626e8b8f8694f6

taskcluster/ci/toolchain/cargo-vet.yml

@@ -0,0 +1,64 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+---
+job-defaults:
+    description: "cargo-vet toolchain build"
+    attributes:
+        local-toolchain: true
+    worker-type: b-linux
+    worker:
+        max-run-time: 1800
+    run:
+        script: build-cargo-vet.sh
+        toolchain-artifact: public/build/cargo-vet.tar.zst
+    fetches:
+        fetch:
+            - cargo-vet
+
+linux64-cargo-vet:
+    treeherder:
+        symbol: TL(cargo-vet)
+    run:
+        arguments: ['x86_64-unknown-linux-gnu']
+    fetches:
+        toolchain:
+            - linux64-clang-toolchain
+            - linux64-rust-1.60
+            - sysroot-x86_64-linux-gnu
+
+macosx64-cargo-vet:
+    treeherder:
+        symbol: TM(cargo-vet)
+    run:
+        arguments: ['x86_64-apple-darwin']
+        toolchain-alias: macosx64-aarch64-cargo-vet
+    fetches:
+        toolchain:
+            - linux64-cctools-port
+            - linux64-clang-toolchain
+            - linux64-rust-macos-1.60
+            - macosx64-sdk-11.0
+
+macosx64-aarch64-cargo-vet:
+    treeherder:
+        symbol: TM(cargo-vet-arm64)
+    run:
+        arguments: ['aarch64-apple-darwin']
+    fetches:
+        toolchain:
+            - linux64-cctools-port
+            - linux64-clang-toolchain
+            - linux64-rust-macos-1.60
+            - macosx64-sdk-11.0
+
+win64-cargo-vet:
+    treeherder:
+        symbol: TW64(cargo-vet)
+    run:
+        arguments: ['x86_64-pc-windows-msvc']
+    fetches:
+        toolchain:
+            - linux64-clang-toolchain
+            - linux64-rust-windows-1.60
+            - win64-vs2017

taskcluster/ci/toolchain/kind.yml

@@ -25,6 +25,7 @@ job-defaults:
 
 jobs-from:
     - android.yml
+    - cargo-vet.yml
     - cbindgen.yml
     - clang-tidy.yml
     - clang.yml

taskcluster/scripts/misc/build-cargo-vet.sh

@@ -0,0 +1,55 @@
+#!/bin/bash
+set -x -e -v
+
+PROJECT=cargo-vet
+
+# Needed by osx-cross-linker.
+export TARGET=$1
+
+case "$TARGET" in
+x86_64-unknown-linux-gnu)
+    # Native Linux Build
+    EXE=
+    FEATURES="--features reqwest/native-tls-vendored"
+    export RUSTFLAGS="-Clinker=$MOZ_FETCHES_DIR/clang/bin/clang++ -C link-arg=--sysroot=$MOZ_FETCHES_DIR/sysroot-x86_64-linux-gnu -C link-arg=-fuse-ld=lld"
+    export CC=$MOZ_FETCHES_DIR/clang/bin/clang
+    export CFLAGS="--sysroot=$MOZ_FETCHES_DIR/sysroot-x86_64-linux-gnu"
+    ;;
+*-apple-darwin)
+    # Cross-compiling for Mac on Linux.
+    EXE=
+    FEATURES=
+    export PATH="$MOZ_FETCHES_DIR/clang/bin:$PATH"
+    export PATH="$MOZ_FETCHES_DIR/cctools/bin:$PATH"
+    export RUSTFLAGS="-C linker=$GECKO_PATH/taskcluster/scripts/misc/osx-cross-linker"
+    if test "$TARGET" = "aarch64-apple-darwin"; then
+        export MACOSX_DEPLOYMENT_TARGET=11.0
+    else
+        export MACOSX_DEPLOYMENT_TARGET=10.12
+    fi
+    export CC="$MOZ_FETCHES_DIR/clang/bin/clang"
+    export TARGET_CC="$CC -isysroot $MOZ_FETCHES_DIR/MacOSX11.0.sdk"
+    ;;
+x86_64-pc-windows-msvc)
+    # Cross-compiling for Windows on Linux.
+    EXE=.exe
+    FEATURES=
+    export CC=$MOZ_FETCHES_DIR/clang/bin/clang-cl
+    export TARGET_AR=$MOZ_FETCHES_DIR/clang/bin/llvm-lib
+
+    . $GECKO_PATH/taskcluster/scripts/misc/vs-setup.sh
+    export CARGO_TARGET_X86_64_PC_WINDOWS_MSVC_LINKER=$MOZ_FETCHES_DIR/clang/bin/lld-link
+    ;;
+esac
+
+PATH="$MOZ_FETCHES_DIR/rustc/bin:$PATH"
+
+cd $MOZ_FETCHES_DIR/$PROJECT
+
+cargo build --verbose --release --target "$TARGET" --bin $PROJECT $FEATURES
+
+mkdir ${PROJECT}
+cp target/$TARGET/release/${PROJECT}${EXE} ${PROJECT}/${PROJECT}${EXE}
+tar -acf ${PROJECT}.tar.zst ${PROJECT}
+mkdir -p $UPLOAD_DIR
+cp ${PROJECT}.tar.zst $UPLOAD_DIR