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ci: install Rust with rustup in the CI and release workflows, as the Resources templates now do #20

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Merged
MotherSphere merged 1 commit into from
Oct 14, 2026
Merged

ci: install Rust with rustup in the CI and release workflows, as the Resources templates now do #20

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21 changes: 12 additions & 9 deletions .github/workflows/ci.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -24,10 +24,14 @@ jobs:
with:
persist-credentials: false

- uses: dtolnay/rust-toolchain@e2a55d2ffb04f378e9626c28d38b36d230d1e12f # master, 2026-10-09
with:
toolchain: stable
components: clippy, rustfmt
# rustup is on every GitHub-hosted runner image: no third-party action to
# pin, and nothing for Dependabot to lose track of. bash keeps the same
# step working on the Windows leg.
- name: Install Rust
shell: bash
run: |
rustup toolchain install stable --profile minimal --component clippy,rustfmt --no-self-update
rustup default stable

- uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2

Expand All @@ -45,8 +49,8 @@ jobs:
# Without this job nothing ever builds on it, and it drifts.
#
# RUSTUP_TOOLCHAIN is what pins the cargo invocations: it outranks both the
# rustup default the toolchain action sets and any rust-toolchain.toml. The
# rustc check makes a pin that silently stopped working fail loudly.
# runner's rustup default and any rust-toolchain.toml. The rustc check makes
# a pin that silently stopped working fail loudly.
msrv:
name: MSRV
runs-on: ubuntu-latest
Expand All @@ -63,9 +67,8 @@ jobs:
echo "version=$version" >> "$GITHUB_OUTPUT"
echo "RUSTUP_TOOLCHAIN=$version" >> "$GITHUB_ENV"

- uses: dtolnay/rust-toolchain@e2a55d2ffb04f378e9626c28d38b36d230d1e12f # master, 2026-10-09
with:
toolchain: ${{ steps.msrv.outputs.version }}
- name: Install Rust ${{ steps.msrv.outputs.version }}
run: rustup toolchain install "$RUSTUP_TOOLCHAIN" --profile minimal --no-self-update

- uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
with:
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16 changes: 9 additions & 7 deletions .github/workflows/release.yml
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Expand Up @@ -122,13 +122,15 @@ jobs:
ref: ${{ needs.release-please.outputs.tag_name || inputs.tag }}
persist-credentials: false

# Pinned to master with `toolchain: stable` rather than to the `stable`
# branch: that branch is rebased onto every master commit, so a SHA
# pinned on it stops being reachable from any branch.
- uses: dtolnay/rust-toolchain@e2a55d2ffb04f378e9626c28d38b36d230d1e12f # master, 2026-10-09
with:
toolchain: stable
targets: ${{ matrix.target }}
# rustup is on every GitHub-hosted runner image, so there is no
# third-party toolchain action to pin. Adding the target is a no-op on
# the legs that build for their own host; the Intel macOS leg needs it.
- name: Install Rust
shell: bash
run: |
rustup toolchain install stable --profile minimal --no-self-update
rustup default stable
rustup target add ${{ matrix.target }}

# No build cache here: SignPath forbids release builds that reuse
# outputs of earlier, unverified builds.
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