[INFO] fetching crate retc-raft 0.0.0...
[INFO] testing retc-raft-0.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate retc-raft 0.0.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate retc-raft 0.0.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate retc-raft 0.0.0
[INFO] finished tweaking crates.io crate retc-raft 0.0.0
[INFO] tweaked toml for crates.io crate retc-raft 0.0.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tonic-build v0.2.0
[INFO] [stderr]   Downloaded tower-util v0.3.1
[INFO] [stderr]   Downloaded tower-discover v0.3.0
[INFO] [stderr]   Downloaded tower-load-shed v0.3.0
[INFO] [stderr]   Downloaded tower-buffer v0.3.0
[INFO] [stderr]   Downloaded async-stream-impl v0.2.1
[INFO] [stderr]   Downloaded async-stream v0.2.1
[INFO] [stderr]   Downloaded tower-retry v0.3.0
[INFO] [stderr]   Downloaded tower-make v0.3.0
[INFO] [stderr]   Downloaded tower-timeout v0.3.0
[INFO] [stderr]   Downloaded tower-limit v0.3.1
[INFO] [stderr]   Downloaded tonic v0.2.1
[INFO] [stderr]   Downloaded tower-ready-cache v0.3.1
[INFO] [stderr]   Downloaded prost-types v0.6.1
[INFO] [stderr]   Downloaded tower-balance v0.3.0
[INFO] [stderr]   Downloaded tower v0.3.1
[INFO] [stderr]   Downloaded prost-build v0.6.1
[INFO] [stderr]   Downloaded tower-load v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 831fc2d030a0b1b6f3ff2919f4ab0a204a131335ee81a05124640b1e2b28e00b
[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" "831fc2d030a0b1b6f3ff2919f4ab0a204a131335ee81a05124640b1e2b28e00b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "831fc2d030a0b1b6f3ff2919f4ab0a204a131335ee81a05124640b1e2b28e00b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "831fc2d030a0b1b6f3ff2919f4ab0a204a131335ee81a05124640b1e2b28e00b", kill_on_drop: false }`
[INFO] [stdout] 831fc2d030a0b1b6f3ff2919f4ab0a204a131335ee81a05124640b1e2b28e00b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 319b0add52de938b1dba865bbf5f851bc8cc72f670284f7d7ed4eb27881ac800
[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" "319b0add52de938b1dba865bbf5f851bc8cc72f670284f7d7ed4eb27881ac800", kill_on_drop: false }`
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling async-stream-impl v0.2.1
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling async-stream v0.2.1
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling pin-project v0.4.28
[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]    Compiling tower-discover v0.3.0
[INFO] [stderr]    Compiling tower-util v0.3.1
[INFO] [stderr]    Compiling tower-load-shed v0.3.0
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]    Compiling tower-load v0.3.0
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tower-timeout v0.3.0
[INFO] [stderr]    Compiling tower-buffer v0.3.0
[INFO] [stderr]    Compiling tower-retry v0.3.0
[INFO] [stderr]    Compiling tower-make v0.3.0
[INFO] [stderr]    Compiling tower-ready-cache v0.3.1
[INFO] [stderr]    Compiling tower-limit v0.3.1
[INFO] [stderr]    Compiling tower-balance v0.3.0
[INFO] [stderr]    Compiling h2 v0.2.7
[INFO] [stderr]    Compiling tower v0.3.1
[INFO] [stderr]    Compiling tonic-build v0.2.0
[INFO] [stderr]    Compiling retc-raft v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `retc-raft v0.0.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/retc-raft-c1da539a233c2f1e/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   error: 'rustfmt' is not installed for the toolchain '1.55.0-x86_64-unknown-linux-gnu'
[INFO] [stderr]   To install, run `rustup component add rustfmt --toolchain 1.55.0-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" "319b0add52de938b1dba865bbf5f851bc8cc72f670284f7d7ed4eb27881ac800", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "319b0add52de938b1dba865bbf5f851bc8cc72f670284f7d7ed4eb27881ac800", kill_on_drop: false }`
[INFO] [stdout] 319b0add52de938b1dba865bbf5f851bc8cc72f670284f7d7ed4eb27881ac800