[INFO] cloning repository https://github.com/banool/telephone
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/banool/telephone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbanool%2Ftelephone", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbanool%2Ftelephone'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4b489ca9acdb1b8ba51aa6e4ea773a6a24e4e79b
[INFO] documenting banool/telephone against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbanool%2Ftelephone" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/banool/telephone on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/banool/telephone
[INFO] finished tweaking git repo https://github.com/banool/telephone
[INFO] tweaked toml for git repo https://github.com/banool/telephone written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/banool/telephone already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded factorial v0.2.0
[INFO] [stderr]   Downloaded az v0.3.1
[INFO] [stderr]   Downloaded rug v1.8.0
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9aee1cb7a1d613f7091cb322896fd2dcbe8158697c17e1b47d06f9802fd0373
[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" "f9aee1cb7a1d613f7091cb322896fd2dcbe8158697c17e1b47d06f9802fd0373", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9aee1cb7a1d613f7091cb322896fd2dcbe8158697c17e1b47d06f9802fd0373", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9aee1cb7a1d613f7091cb322896fd2dcbe8158697c17e1b47d06f9802fd0373", kill_on_drop: false }`
[INFO] [stdout] f9aee1cb7a1d613f7091cb322896fd2dcbe8158697c17e1b47d06f9802fd0373
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d11c9cc1c70fa0252894348587e59f9330ae32eb3e350fa766ac6e5e90ad0ff8
[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" "d11c9cc1c70fa0252894348587e59f9330ae32eb3e350fa766ac6e5e90ad0ff8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.2.2
[INFO] [stderr]    Compiling rug v1.8.0
[INFO] [stderr]     Checking az v0.3.1
[INFO] [stderr]     Checking factorial v0.2.0
[INFO] [stderr]     Checking num-bigint v0.2.6
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "d11c9cc1c70fa0252894348587e59f9330ae32eb3e350fa766ac6e5e90ad0ff8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d11c9cc1c70fa0252894348587e59f9330ae32eb3e350fa766ac6e5e90ad0ff8", kill_on_drop: false }`
[INFO] [stdout] d11c9cc1c70fa0252894348587e59f9330ae32eb3e350fa766ac6e5e90ad0ff8