[INFO] cloning repository https://github.com/crepererum/peter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/crepererum/peter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrepererum%2Fpeter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrepererum%2Fpeter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 645d49ff37ac0e3f35a12a0546f08e264f7a51df
[INFO] documenting crepererum/peter against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrepererum%2Fpeter" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/crepererum/peter on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/crepererum/peter
[INFO] finished tweaking git repo https://github.com/crepererum/peter
[INFO] tweaked toml for git repo https://github.com/crepererum/peter written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/crepererum/peter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f3b66c2b742e28a7971e9c8227ca3640ca5705c91ca6fd7b0550f5557eff0e01
[INFO] running `Command { std: "docker" "start" "-a" "f3b66c2b742e28a7971e9c8227ca3640ca5705c91ca6fd7b0550f5557eff0e01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3b66c2b742e28a7971e9c8227ca3640ca5705c91ca6fd7b0550f5557eff0e01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3b66c2b742e28a7971e9c8227ca3640ca5705c91ca6fd7b0550f5557eff0e01", kill_on_drop: false }`
[INFO] [stdout] f3b66c2b742e28a7971e9c8227ca3640ca5705c91ca6fd7b0550f5557eff0e01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4660df41e8ca6fa3b3328b03db591eeee1db500dd641c7795e63d8a6147fc1c9
[INFO] running `Command { std: "docker" "start" "-a" "4660df41e8ca6fa3b3328b03db591eeee1db500dd641c7795e63d8a6147fc1c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling subtle v0.6.3
[INFO] [stderr]    Compiling byteorder v1.2.3
[INFO] [stderr]     Checking static_slice v0.0.3
[INFO] [stderr]     Checking arrayref v0.3.4
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]    Compiling rand v0.5.0-pre.2
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking chacha20-poly1305-aead v0.1.2
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]    Compiling rustc_version v0.2.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]    Compiling structopt-derive v0.2.10
[INFO] [stderr]    Compiling serde_derive v1.0.66
[INFO] [stderr]     Checking digest v0.7.4
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling snow v0.2.1
[INFO] [stderr]     Checking regex v1.0.1
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking backtrace v0.3.8
[INFO] [stderr]     Checking rayon-core v1.4.0
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking rayon v1.0.1
[INFO] [stderr]    Compiling curve25519-dalek v0.17.0
[INFO] [stderr]     Checking env_logger v0.5.10
[INFO] [stderr]     Checking x25519-dalek v0.2.0
[INFO] [stderr]     Checking structopt v0.2.10
[INFO] [stderr]     Checking clap-verbosity-flag v0.1.0
[INFO] [stderr]     Checking quicli v0.3.0
[INFO] [stderr]  Documenting peter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.82s
[INFO] running `Command { std: "docker" "inspect" "4660df41e8ca6fa3b3328b03db591eeee1db500dd641c7795e63d8a6147fc1c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4660df41e8ca6fa3b3328b03db591eeee1db500dd641c7795e63d8a6147fc1c9", kill_on_drop: false }`
[INFO] [stdout] 4660df41e8ca6fa3b3328b03db591eeee1db500dd641c7795e63d8a6147fc1c9