[INFO] cloning repository https://github.com/antifuchs/ssh_bookmarker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/antifuchs/ssh_bookmarker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantifuchs%2Fssh_bookmarker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantifuchs%2Fssh_bookmarker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3afbab49ff13af3c32633992edd44e6ea0c4fecc
[INFO] documenting antifuchs/ssh_bookmarker 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%2Fantifuchs%2Fssh_bookmarker" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/antifuchs/ssh_bookmarker 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/antifuchs/ssh_bookmarker
[INFO] finished tweaking git repo https://github.com/antifuchs/ssh_bookmarker
[INFO] tweaked toml for git repo https://github.com/antifuchs/ssh_bookmarker written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/antifuchs/ssh_bookmarker 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex-syntax v0.4.1
[INFO] [stderr]   Downloaded backtrace v0.3.13
[INFO] [stderr]   Downloaded aho-corasick v0.6.3
[INFO] [stderr]   Downloaded unreachable v0.1.1
[INFO] [stderr]   Downloaded error-chain v0.12.0
[INFO] [stderr]   Downloaded rustc-serialize v0.3.22
[INFO] [stderr]   Downloaded rustc-demangle v0.1.13
[INFO] [stderr]   Downloaded cc v1.0.28
[INFO] [stderr]   Downloaded backtrace-sys v0.1.28
[INFO] [stderr]   Downloaded thread-id v3.1.0
[INFO] [stderr]   Downloaded regex v0.2.2
[INFO] [stderr]   Downloaded memchr v1.0.1
[INFO] [stderr]   Downloaded thread_local v0.3.3
[INFO] [stderr]   Downloaded autocfg v0.1.1
[INFO] [stderr]   Downloaded lazy_static v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] e559545144d4e4e44c4dc8b580f1cd67320fbd9a6d0c08a9999e5f7dba0650ee
[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" "e559545144d4e4e44c4dc8b580f1cd67320fbd9a6d0c08a9999e5f7dba0650ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e559545144d4e4e44c4dc8b580f1cd67320fbd9a6d0c08a9999e5f7dba0650ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e559545144d4e4e44c4dc8b580f1cd67320fbd9a6d0c08a9999e5f7dba0650ee", kill_on_drop: false }`
[INFO] [stdout] e559545144d4e4e44c4dc8b580f1cd67320fbd9a6d0c08a9999e5f7dba0650ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1e49fcc054fad94438a79ce3575c4248ac2659a51cb89ed0753a61c9896f0841
[INFO] running `Command { std: "docker" "start" "-a" "1e49fcc054fad94438a79ce3575c4248ac2659a51cb89ed0753a61c9896f0841", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.46
[INFO] [stderr]     Checking rustc-serialize v0.3.22
[INFO] [stderr]     Checking strsim v0.5.2
[INFO] [stderr]     Checking regex-syntax v0.4.1
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking thread-id v3.1.0
[INFO] [stderr]     Checking backtrace-sys v0.1.28
[INFO] [stderr]     Checking thread_local v0.3.3
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking backtrace v0.3.13
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking docopt v0.6.86
[INFO] [stderr]  Documenting ssh_bookmarker v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.88s
[INFO] running `Command { std: "docker" "inspect" "1e49fcc054fad94438a79ce3575c4248ac2659a51cb89ed0753a61c9896f0841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e49fcc054fad94438a79ce3575c4248ac2659a51cb89ed0753a61c9896f0841", kill_on_drop: false }`
[INFO] [stdout] 1e49fcc054fad94438a79ce3575c4248ac2659a51cb89ed0753a61c9896f0841