[INFO] fetching crate darksteel 0.1.0...
[INFO] testing darksteel-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate darksteel 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate darksteel 0.1.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate darksteel 0.1.0
[INFO] finished tweaking crates.io crate darksteel 0.1.0
[INFO] tweaked toml for crates.io crate darksteel 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dns-lookup v1.0.8
[INFO] [stderr]   Downloaded unchecked_unwrap v3.0.0
[INFO] [stderr]   Downloaded async-raft v0.6.1
[INFO] [stderr]   Downloaded darksteel-codegen v0.1.0
[INFO] [stderr]   Downloaded sorted-insert v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ff353a02b140d188c4013601eeab26b4258e6345b6dfe996f744b8b0cee2655f
[INFO] running `Command { std: "docker" "start" "-a" "ff353a02b140d188c4013601eeab26b4258e6345b6dfe996f744b8b0cee2655f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff353a02b140d188c4013601eeab26b4258e6345b6dfe996f744b8b0cee2655f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff353a02b140d188c4013601eeab26b4258e6345b6dfe996f744b8b0cee2655f", kill_on_drop: false }`
[INFO] [stdout] ff353a02b140d188c4013601eeab26b4258e6345b6dfe996f744b8b0cee2655f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83187d9a3de7061fced0717f73335d7fdad4bba7641918eb7391c6048c001325
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "83187d9a3de7061fced0717f73335d7fdad4bba7641918eb7391c6048c001325", kill_on_drop: false }`
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling erased-serde v0.3.20
[INFO] [stderr]    Compiling dyn-clone v1.0.5
[INFO] [stderr]    Compiling sorted-insert v0.2.3
[INFO] [stderr]    Compiling unchecked_unwrap v3.0.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling mio v0.8.2
[INFO] [stderr]    Compiling dns-lookup v1.0.8
[INFO] [stderr]    Compiling prost-build v0.8.0
[INFO] [stderr]    Compiling prost-derive v0.8.0
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling async-stream-impl v0.3.3
[INFO] [stderr]    Compiling ctor v0.1.22
[INFO] [stderr]    Compiling typetag-impl v0.1.8
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling tracing v0.1.33
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling darksteel-codegen v0.1.0
[INFO] [stderr]    Compiling inventory v0.2.2
[INFO] [stderr]    Compiling async-stream v0.3.3
[INFO] [stderr]    Compiling typetag v0.1.8
[INFO] [stderr]    Compiling prost v0.8.0
[INFO] [stderr]    Compiling prost-types v0.8.0
[INFO] [stderr]    Compiling tokio-util v0.7.1
[INFO] [stderr]    Compiling tokio-io-timeout v1.2.0
[INFO] [stderr]    Compiling tokio-util v0.6.9
[INFO] [stderr]    Compiling tokio-stream v0.1.8
[INFO] [stderr]    Compiling async-raft v0.6.1
[INFO] [stderr]    Compiling tonic-build v0.5.2
[INFO] [stderr]    Compiling h2 v0.3.13
[INFO] [stderr]    Compiling tower v0.4.12
[INFO] [stderr]    Compiling darksteel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `darksteel v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/darksteel-b98692002fd3a2d5/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   error: 'rustfmt' is not installed for the toolchain '1.60.0-x86_64-unknown-linux-gnu'
[INFO] [stderr]   To install, run `rustup component add rustfmt --toolchain 1.60.0-x86_64-unknown-linux-gnu`
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "83187d9a3de7061fced0717f73335d7fdad4bba7641918eb7391c6048c001325", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83187d9a3de7061fced0717f73335d7fdad4bba7641918eb7391c6048c001325", kill_on_drop: false }`
[INFO] [stdout] 83187d9a3de7061fced0717f73335d7fdad4bba7641918eb7391c6048c001325