[INFO] cloning repository https://github.com/bemyak/squarifier
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bemyak/squarifier" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbemyak%2Fsquarifier", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbemyak%2Fsquarifier'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1ffc525c003764c45c44d58cf6279b9f37db1175
[INFO] documenting bemyak/squarifier against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbemyak%2Fsquarifier" "/workspace/builds/worker-25/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-25/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bemyak/squarifier on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bemyak/squarifier
[INFO] finished tweaking git repo https://github.com/bemyak/squarifier
[INFO] tweaked toml for git repo https://github.com/bemyak/squarifier written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] crate git repo https://github.com/bemyak/squarifier already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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 http-client v6.4.1
[INFO] [stderr]   Downloaded isahc v0.9.14
[INFO] [stderr]   Downloaded flume v0.9.2
[INFO] [stderr]   Downloaded curl v0.4.38
[INFO] [stderr]   Downloaded spinning_top v0.2.4
[INFO] [stderr]   Downloaded sluice v0.5.4
[INFO] [stderr]   Downloaded surf v2.2.0
[INFO] [stderr]   Downloaded http-types v2.11.1
[INFO] [stderr]   Downloaded curl-sys v0.4.44+curl-7.77.0
[INFO] [stderr]   Downloaded libnghttp2-sys v0.1.6+1.43.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f67ba2c6a2099e69ff08cfa757196b44bfac756fcc1d990a032be1b26b82fcd
[INFO] running `Command { std: "docker" "start" "-a" "4f67ba2c6a2099e69ff08cfa757196b44bfac756fcc1d990a032be1b26b82fcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f67ba2c6a2099e69ff08cfa757196b44bfac756fcc1d990a032be1b26b82fcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f67ba2c6a2099e69ff08cfa757196b44bfac756fcc1d990a032be1b26b82fcd", kill_on_drop: false }`
[INFO] [stdout] 4f67ba2c6a2099e69ff08cfa757196b44bfac756fcc1d990a032be1b26b82fcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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" "RUSTDOCFLAGS=--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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9c3768aaa567e8263bbf11f430666e71a9ded14897f6fafe8558b994ac11017
[INFO] running `Command { std: "docker" "start" "-a" "a9c3768aaa567e8263bbf11f430666e71a9ded14897f6fafe8558b994ac11017", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking sval v1.0.0-alpha.5
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling signal-hook v0.3.9
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking cpuid-bool v0.2.0
[INFO] [stderr]    Compiling const_fn v0.4.8
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking cpufeatures v0.1.4
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling http-types v2.11.1
[INFO] [stderr]    Compiling curl v0.4.38
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]     Checking infer v0.2.3
[INFO] [stderr]    Compiling isahc v0.9.14
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]     Checking futures-sink v0.3.15
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking openssl-probe v0.1.4
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking bytemuck v1.5.1
[INFO] [stderr]     Checking route-recognizer v0.2.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.7
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling time v0.2.26
[INFO] [stderr]    Compiling cookie v0.14.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking gif v0.11.2
[INFO] [stderr] error: could not compile `cc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name cc --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cc-1.0.68/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=7469c760b5838a84 -C extra-filename=-7469c760b5838a84 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a9c3768aaa567e8263bbf11f430666e71a9ded14897f6fafe8558b994ac11017", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9c3768aaa567e8263bbf11f430666e71a9ded14897f6fafe8558b994ac11017", kill_on_drop: false }`
[INFO] [stdout] a9c3768aaa567e8263bbf11f430666e71a9ded14897f6fafe8558b994ac11017