[INFO] cloning repository https://github.com/BProg/z-files
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BProg/z-files" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBProg%2Fz-files", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBProg%2Fz-files'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b842f030927ec636e9038c6db7bdde76d5f0c044
[INFO] documenting BProg/z-files against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBProg%2Fz-files" "/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/BProg/z-files on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BProg/z-files
[INFO] finished tweaking git repo https://github.com/BProg/z-files
[INFO] tweaked toml for git repo https://github.com/BProg/z-files written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/BProg/z-files already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clicolors-control v0.1.0
[INFO] [stderr]   Downloaded console v0.5.0
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "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] 906a4009f51efba4865c4222e2aeef9c82030da4116c646a74c5ba0e5a5c3116
[INFO] running `Command { std: "docker" "start" "-a" "906a4009f51efba4865c4222e2aeef9c82030da4116c646a74c5ba0e5a5c3116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "906a4009f51efba4865c4222e2aeef9c82030da4116c646a74c5ba0e5a5c3116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "906a4009f51efba4865c4222e2aeef9c82030da4116c646a74c5ba0e5a5c3116", kill_on_drop: false }`
[INFO] [stdout] 906a4009f51efba4865c4222e2aeef9c82030da4116c646a74c5ba0e5a5c3116
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfeb47fbac13a936d7356cc5f29b0d02026fb0cf1fc245a5ed590da86adf2139
[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" "cfeb47fbac13a936d7356cc5f29b0d02026fb0cf1fc245a5ed590da86adf2139", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.30
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking smallvec v0.4.3
[INFO] [stderr]     Checking regex-syntax v0.4.1
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking csv v0.14.7
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking rand v0.3.16
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking clicolors-control v0.1.0
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]     Checking textwrap v0.8.0
[INFO] [stderr]     Checking parking_lot_core v0.2.6
[INFO] [stderr]     Checking clap v2.26.2
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]     Checking parking_lot v0.4.8
[INFO] [stderr]     Checking console v0.5.0
[INFO] [stderr]  Documenting xfile v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.29s
[INFO] running `Command { std: "docker" "inspect" "cfeb47fbac13a936d7356cc5f29b0d02026fb0cf1fc245a5ed590da86adf2139", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfeb47fbac13a936d7356cc5f29b0d02026fb0cf1fc245a5ed590da86adf2139", kill_on_drop: false }`
[INFO] [stdout] cfeb47fbac13a936d7356cc5f29b0d02026fb0cf1fc245a5ed590da86adf2139