[INFO] fetching crate k 0.17.0...
[INFO] documenting k-0.17.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate k 0.17.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate k 0.17.0 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 crates.io crate k 0.17.0
[INFO] finished tweaking crates.io crate k 0.17.0
[INFO] tweaked toml for crates.io crate k 0.17.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate k 0.17.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] 0c482a82f33fd2809c4cbadcb941b5467df4779cfcdfd95828e47f8bf32e14ab
[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" "0c482a82f33fd2809c4cbadcb941b5467df4779cfcdfd95828e47f8bf32e14ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c482a82f33fd2809c4cbadcb941b5467df4779cfcdfd95828e47f8bf32e14ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c482a82f33fd2809c4cbadcb941b5467df4779cfcdfd95828e47f8bf32e14ab", kill_on_drop: false }`
[INFO] [stdout] 0c482a82f33fd2809c4cbadcb941b5467df4779cfcdfd95828e47f8bf32e14ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] 45723386d6d82564dcb10bf0a2b17bb3f58039354238b9bd024846497446a930
[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" "45723386d6d82564dcb10bf0a2b17bb3f58039354238b9bd024846497446a930", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]     Checking RustyXML v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]     Checking serde-xml-rs v0.1.2
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]    Compiling backtrace v0.3.46
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]     Checking urdf-rs v0.4.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]    Compiling serde_json v1.0.52
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling paste-impl v0.1.12
[INFO] [stderr]    Compiling thiserror-impl v1.0.16
[INFO] [stderr]     Checking paste v0.1.12
[INFO] [stderr]     Checking simba v0.1.2
[INFO] [stderr]     Checking nalgebra v0.21.0
[INFO] [stderr]     Checking thiserror v1.0.16
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]    Compiling k v0.17.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting k v0.17.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 09s
[INFO] running `Command { std: "docker" "inspect" "45723386d6d82564dcb10bf0a2b17bb3f58039354238b9bd024846497446a930", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45723386d6d82564dcb10bf0a2b17bb3f58039354238b9bd024846497446a930", kill_on_drop: false }`
[INFO] [stdout] 45723386d6d82564dcb10bf0a2b17bb3f58039354238b9bd024846497446a930