[INFO] cloning repository https://github.com/tetsuzawa/strace-from-scratch-in-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tetsuzawa/strace-from-scratch-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftetsuzawa%2Fstrace-from-scratch-in-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftetsuzawa%2Fstrace-from-scratch-in-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b60dbd65f1eba5c372f379ee1031a3634be4be83
[INFO] documenting tetsuzawa/strace-from-scratch-in-rust against master#e1df625306f4136949e02612406f0c60df6008f3 for pr-96676
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftetsuzawa%2Fstrace-from-scratch-in-rust" "/workspace/builds/worker-63/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-63/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tetsuzawa/strace-from-scratch-in-rust on toolchain e1df625306f4136949e02612406f0c60df6008f3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1df625306f4136949e02612406f0c60df6008f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tetsuzawa/strace-from-scratch-in-rust
[INFO] finished tweaking git repo https://github.com/tetsuzawa/strace-from-scratch-in-rust
[INFO] tweaked toml for git repo https://github.com/tetsuzawa/strace-from-scratch-in-rust written to /workspace/builds/worker-63/source/Cargo.toml
[INFO] crate git repo https://github.com/tetsuzawa/strace-from-scratch-in-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1df625306f4136949e02612406f0c60df6008f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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" "+e1df625306f4136949e02612406f0c60df6008f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8a8c4c3ef130edb891d985b0ccd7fed659d2c86f81d527344a139871ee791a77
[INFO] running `Command { std: "docker" "start" "-a" "8a8c4c3ef130edb891d985b0ccd7fed659d2c86f81d527344a139871ee791a77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a8c4c3ef130edb891d985b0ccd7fed659d2c86f81d527344a139871ee791a77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a8c4c3ef130edb891d985b0ccd7fed659d2c86f81d527344a139871ee791a77", kill_on_drop: false }`
[INFO] [stdout] 8a8c4c3ef130edb891d985b0ccd7fed659d2c86f81d527344a139871ee791a77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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=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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+e1df625306f4136949e02612406f0c60df6008f3" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 301e2ee353025808d2192d7a637021e0541836c8bc9cca958dd99b6fe245c54b
[INFO] running `Command { std: "docker" "start" "-a" "301e2ee353025808d2192d7a637021e0541836c8bc9cca958dd99b6fe245c54b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]  Documenting strace-from-scratch-in-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.81s
[INFO] running `Command { std: "docker" "inspect" "301e2ee353025808d2192d7a637021e0541836c8bc9cca958dd99b6fe245c54b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "301e2ee353025808d2192d7a637021e0541836c8bc9cca958dd99b6fe245c54b", kill_on_drop: false }`
[INFO] [stdout] 301e2ee353025808d2192d7a637021e0541836c8bc9cca958dd99b6fe245c54b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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" "+e1df625306f4136949e02612406f0c60df6008f3" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] ee6f4a6404ca12a519cbdcfd746b047a1d8ed0269375ad4ebdefc822610ad087
[INFO] running `Command { std: "docker" "start" "-a" "ee6f4a6404ca12a519cbdcfd746b047a1d8ed0269375ad4ebdefc822610ad087", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "ee6f4a6404ca12a519cbdcfd746b047a1d8ed0269375ad4ebdefc822610ad087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee6f4a6404ca12a519cbdcfd746b047a1d8ed0269375ad4ebdefc822610ad087", kill_on_drop: false }`
[INFO] [stdout] ee6f4a6404ca12a519cbdcfd746b047a1d8ed0269375ad4ebdefc822610ad087