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GitHub Actions runners for Rust / Cargo

Cold `cargo build --release` on a real codebase needs many cores and ample RAM. Cirun runs your Rust / Cargo CI on a right-sized cloud VM on your own account — pick AWS, GCP, Azure, Oracle, DigitalOcean, OpenStack or on-prem, billed by your cloud, never per CI minute.

Run Rust / Cargo on Cirun Docs

Why this fits

Cold `cargo build --release` on a real codebase needs many cores and ample RAM.
Cirun is cloud-neutral — every supported cloud has at least one SKU that fits Rust / Cargo; pick whichever account you already have.
Ephemeral by default — no state from the previous PR leaks into yours, no flaky-cache surprises.

.cirun.yml

1runners:
2  - name: rust-runner
3    cloud: aws
4    instance_type: c7i.4xlarge
5    # AWS publishes new Ubuntu 22.04 LTS AMI IDs per region. Use the AWS
6    # SSM parameter
7    # /aws/service/canonical/ubuntu/server/22.04/stable/current/amd64/hvm/ebs-gp2/ami-id
8    # to fetch the current one.
9    machine_image: ami-053b0d53c279acc90
10    labels:
11      - cirun-rust

.cirun.yml

1runners:
2  - name: rust-runner
3    cloud: gcp
4    instance_type: c3-standard-22
5    # Use a GCP image family path or a self-link to a custom image.
6    machine_image: projects/ubuntu-os-cloud/global/images/family/ubuntu-2204-lts
7    labels:
8      - cirun-rust

.cirun.yml

1runners:
2  - name: rust-runner
3    cloud: azure
4    instance_type: Standard_D16s_v5
5    # Azure image reference is Publisher:Offer:SKU:Version (string-colon
6    # form) or an explicit map.
7    machine_image: Canonical:0001-com-ubuntu-server-jammy:22_04-lts-gen2:latest
8    labels:
9      - cirun-rust