[INFO] fetching crate lookrd 0.1.1...
[INFO] testing lookrd-0.1.1 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate lookrd 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate lookrd 0.1.1 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lookrd 0.1.1
[INFO] finished tweaking crates.io crate lookrd 0.1.1
[INFO] tweaked toml for crates.io crate lookrd 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate lookrd 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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] d18753e45662408f0f0c5e5f43e4d889f0838925ee82684b9f254564b83291b1
[INFO] running `Command { std: "docker" "start" "-a" "d18753e45662408f0f0c5e5f43e4d889f0838925ee82684b9f254564b83291b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d18753e45662408f0f0c5e5f43e4d889f0838925ee82684b9f254564b83291b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d18753e45662408f0f0c5e5f43e4d889f0838925ee82684b9f254564b83291b1", kill_on_drop: false }`
[INFO] [stdout] d18753e45662408f0f0c5e5f43e4d889f0838925ee82684b9f254564b83291b1
[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=forbid" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 881324cd636357937f7d0d77fed220814879f64e484a29798dc984ddf7a0da03
[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" "881324cd636357937f7d0d77fed220814879f64e484a29798dc984ddf7a0da03", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling proc-macro2 v1.0.17
[INFO] [stderr]    Compiling syn v1.0.23
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling pin-project-lite v0.1.5
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling tower-layer v0.3.0
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling multimap v0.8.1
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling http v0.2.1
[INFO] [stderr]    Compiling tracing-core v0.1.10
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling inotify-sys v0.1.3
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling filetime v0.2.10
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling inotify v0.7.0
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling notify v4.0.15
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.17
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.8
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]    Compiling async-stream-impl v0.2.1
[INFO] [stderr]    Compiling async-trait v0.1.31
[INFO] [stderr]    Compiling tokio v0.2.21
[INFO] [stderr]    Compiling async-stream v0.2.1
[INFO] [stderr]    Compiling tracing v0.1.14
[INFO] [stderr]    Compiling pin-project v0.4.17
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling tower-discover v0.3.0
[INFO] [stderr]    Compiling tower-load-shed v0.3.0
[INFO] [stderr]    Compiling tracing-futures v0.2.4
[INFO] [stderr]    Compiling prost v0.6.1
[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-limit v0.3.1
[INFO] [stderr]    Compiling tonic-build v0.2.0
[INFO] [stderr]    Compiling tower-util v0.3.1
[INFO] [stderr]    Compiling h2 v0.2.5
[INFO] [stderr]    Compiling tower-ready-cache v0.3.1
[INFO] [stderr]    Compiling tower-balance v0.3.0
[INFO] [stderr]    Compiling tower v0.3.1
[INFO] [stderr]    Compiling lookrd v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `lookrd v0.1.1 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/lookrd-286ebc74edc9c21d/build-script-build` (exit code: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   error: 'rustfmt' is not installed for the toolchain '5d5ff84130da0d74c6ece368dbe821d8f83fa526'
[INFO] [stderr]   note: this is a custom toolchain, which cannot use `rustup component add`
[INFO] [stderr]   help: if you built this toolchain from source, and used `rustup toolchain link`, then you may be able to build the component with `x.py`
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "881324cd636357937f7d0d77fed220814879f64e484a29798dc984ddf7a0da03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "881324cd636357937f7d0d77fed220814879f64e484a29798dc984ddf7a0da03", kill_on_drop: false }`
[INFO] [stdout] 881324cd636357937f7d0d77fed220814879f64e484a29798dc984ddf7a0da03