[INFO] cloning repository https://github.com/realityone/akarin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/realityone/akarin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frealityone%2Fakarin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frealityone%2Fakarin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6734d9b14288800ee23415a6a900fe115c803960
[INFO] documenting realityone/akarin 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%2Frealityone%2Fakarin" "/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/realityone/akarin 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/realityone/akarin
[INFO] finished tweaking git repo https://github.com/realityone/akarin
[INFO] tweaked toml for git repo https://github.com/realityone/akarin written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/realityone/akarin 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]  Downloading crates ...
[INFO] [stderr]   Downloaded ioctl-sys v0.5.2
[INFO] [stderr]   Downloaded either v1.2.0
[INFO] [stderr]   Downloaded transient-hashmap v0.4.0
[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] 87f0dff9b251575369f95c98bc8e38d6011d8783312a86ec649f98341bd0e283
[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" "87f0dff9b251575369f95c98bc8e38d6011d8783312a86ec649f98341bd0e283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87f0dff9b251575369f95c98bc8e38d6011d8783312a86ec649f98341bd0e283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87f0dff9b251575369f95c98bc8e38d6011d8783312a86ec649f98341bd0e283", kill_on_drop: false }`
[INFO] [stdout] 87f0dff9b251575369f95c98bc8e38d6011d8783312a86ec649f98341bd0e283
[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] 5a62d29c26df21c607bedeb1b59d38aeda65080a890e161d0c49ef42789b8f51
[INFO] running `Command { std: "docker" "start" "-a" "5a62d29c26df21c607bedeb1b59d38aeda65080a890e161d0c49ef42789b8f51", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.2.0
[INFO] [stderr]    Compiling scopeguard v0.3.2
[INFO] [stderr]    Compiling lazy_static v0.2.9
[INFO] [stderr]    Compiling cc v1.0.0
[INFO] [stderr]    Compiling futures v0.1.16
[INFO] [stderr]     Checking untrusted v0.5.1
[INFO] [stderr]     Checking ioctl-sys v0.5.2
[INFO] [stderr]    Compiling num_cpus v1.7.0
[INFO] [stderr]    Compiling rand v0.3.17
[INFO] [stderr]     Checking iovec v0.1.1
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking net2 v0.2.31
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking bytes v0.4.5
[INFO] [stderr]     Checking pretty_env_logger v0.1.1
[INFO] [stderr]    Compiling coco v0.1.1
[INFO] [stderr]     Checking mio v0.6.10
[INFO] [stderr]     Checking transient-hashmap v0.4.0
[INFO] [stderr]     Checking tokio-io v0.1.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.14
[INFO] [stderr]     Checking tokio-core v0.1.10
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling ring v0.12.1
[INFO] [stderr]     Checking backtrace v0.3.3
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]  Documenting akarin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.34s
[INFO] running `Command { std: "docker" "inspect" "5a62d29c26df21c607bedeb1b59d38aeda65080a890e161d0c49ef42789b8f51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a62d29c26df21c607bedeb1b59d38aeda65080a890e161d0c49ef42789b8f51", kill_on_drop: false }`
[INFO] [stdout] 5a62d29c26df21c607bedeb1b59d38aeda65080a890e161d0c49ef42789b8f51