[INFO] cloning repository https://github.com/brennie/metabrowser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brennie/metabrowser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrennie%2Fmetabrowser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrennie%2Fmetabrowser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f6e64ef0e8fb214a76a8814f6c538455345f3b88
[INFO] documenting brennie/metabrowser 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%2Fbrennie%2Fmetabrowser" "/workspace/builds/worker-17/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brennie/metabrowser 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/brennie/metabrowser
[INFO] finished tweaking git repo https://github.com/brennie/metabrowser
[INFO] tweaked toml for git repo https://github.com/brennie/metabrowser written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate git repo https://github.com/brennie/metabrowser 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc-demangle v0.1.3
[INFO] [stderr]   Downloaded backtrace-sys v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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] b298088303c22bfdc55440c1d66af7fb5e88ed6d1c58a9b46d8446d508c74549
[INFO] running `Command { std: "docker" "start" "-a" "b298088303c22bfdc55440c1d66af7fb5e88ed6d1c58a9b46d8446d508c74549", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b298088303c22bfdc55440c1d66af7fb5e88ed6d1c58a9b46d8446d508c74549", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b298088303c22bfdc55440c1d66af7fb5e88ed6d1c58a9b46d8446d508c74549", kill_on_drop: false }`
[INFO] [stdout] b298088303c22bfdc55440c1d66af7fb5e88ed6d1c58a9b46d8446d508c74549
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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] d190195661c7fe8a6c2e2cfbcbbcfb3ecb60498ab71dcfa5438ef62dbf7145d0
[INFO] running `Command { std: "docker" "start" "-a" "d190195661c7fe8a6c2e2cfbcbbcfb3ecb60498ab71dcfa5438ef62dbf7145d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking libc v0.2.20
[INFO] [stderr]    Compiling gcc v0.3.42
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.12
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]     Checking cfg-if v0.1.0
[INFO] [stderr]     Checking rustc-demangle v0.1.3
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.4.0
[INFO] [stderr]     Checking dtoa v0.3.1
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling syn v0.10.8
[INFO] [stderr]     Checking thread-id v3.0.0
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking thread_local v0.3.2
[INFO] [stderr]     Checking aho-corasick v0.6.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.5
[INFO] [stderr]     Checking regex v0.2.1
[INFO] [stderr]    Compiling serde_codegen_internals v0.11.3
[INFO] [stderr]     Checking error-chain v0.8.1
[INFO] [stderr]     Checking serde_test v0.8.23
[INFO] [stderr]    Compiling serde_codegen v0.8.23
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]    Compiling serde_derive v0.8.23
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking serde_yaml v0.5.1
[INFO] [stderr]  Documenting metabrowser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 58s
[INFO] running `Command { std: "docker" "inspect" "d190195661c7fe8a6c2e2cfbcbbcfb3ecb60498ab71dcfa5438ef62dbf7145d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d190195661c7fe8a6c2e2cfbcbbcfb3ecb60498ab71dcfa5438ef62dbf7145d0", kill_on_drop: false }`
[INFO] [stdout] d190195661c7fe8a6c2e2cfbcbbcfb3ecb60498ab71dcfa5438ef62dbf7145d0