[INFO] cloning repository https://github.com/plasma-umass/ilvm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/plasma-umass/ilvm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplasma-umass%2Filvm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplasma-umass%2Filvm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e7bb1d6e09801fd04821820214f56e6bfbb54e45
[INFO] documenting plasma-umass/ilvm against try#6ee483316d2e4581572121d60a955affb2032eb3+cargoflags=-Zrustdoc-scrape-examples for scrape-examples
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplasma-umass%2Filvm" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/plasma-umass/ilvm on toolchain 6ee483316d2e4581572121d60a955affb2032eb3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/plasma-umass/ilvm
[INFO] finished tweaking git repo https://github.com/plasma-umass/ilvm
[INFO] tweaked toml for git repo https://github.com/plasma-umass/ilvm written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/plasma-umass/ilvm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 993330c36e5298ae25b89bfd1db9f42d00f8053c352b740bfcbdb3a7a1b8abad
[INFO] running `Command { std: "docker" "start" "-a" "993330c36e5298ae25b89bfd1db9f42d00f8053c352b740bfcbdb3a7a1b8abad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "993330c36e5298ae25b89bfd1db9f42d00f8053c352b740bfcbdb3a7a1b8abad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "993330c36e5298ae25b89bfd1db9f42d00f8053c352b740bfcbdb3a7a1b8abad", kill_on_drop: false }`
[INFO] [stdout] 993330c36e5298ae25b89bfd1db9f42d00f8053c352b740bfcbdb3a7a1b8abad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json" "-Zrustdoc-scrape-examples", kill_on_drop: false }`
[INFO] [stdout] d78c195abb1ad1ddf089ee0c504e7c18c1213b9f474910739dff953a1fbbc5a7
[INFO] running `Command { std: "docker" "start" "-a" "d78c195abb1ad1ddf089ee0c504e7c18c1213b9f474910739dff953a1fbbc5a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking ascii v0.9.1
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking combine v3.6.2
[INFO] [stderr]     Scraping ilvm v0.2.3 (/opt/rustwide/workdir)
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "d78c195abb1ad1ddf089ee0c504e7c18c1213b9f474910739dff953a1fbbc5a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d78c195abb1ad1ddf089ee0c504e7c18c1213b9f474910739dff953a1fbbc5a7", kill_on_drop: false }`
[INFO] [stdout] d78c195abb1ad1ddf089ee0c504e7c18c1213b9f474910739dff953a1fbbc5a7