[INFO] cloning repository https://github.com/Crosse/zk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Crosse/zk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCrosse%2Fzk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCrosse%2Fzk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4eeba44469b50df04ddf7eeb92e84e3129ee7bce
[INFO] documenting Crosse/zk 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%2FCrosse%2Fzk" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Crosse/zk 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/Crosse/zk
[INFO] finished tweaking git repo https://github.com/Crosse/zk
[INFO] tweaked toml for git repo https://github.com/Crosse/zk written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Crosse/zk 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] b45049fd69251525bae2485a3673ee38d7713dfc83d2966a6cb4c8baf0030592
[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" "b45049fd69251525bae2485a3673ee38d7713dfc83d2966a6cb4c8baf0030592", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b45049fd69251525bae2485a3673ee38d7713dfc83d2966a6cb4c8baf0030592", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b45049fd69251525bae2485a3673ee38d7713dfc83d2966a6cb4c8baf0030592", kill_on_drop: false }`
[INFO] [stdout] b45049fd69251525bae2485a3673ee38d7713dfc83d2966a6cb4c8baf0030592
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 3ba5bef7245d67d37e9dbeee9acbc172a3143cea74ea063cb377d82f17b1acaf
[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" "3ba5bef7245d67d37e9dbeee9acbc172a3143cea74ea063cb377d82f17b1acaf", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.20
[INFO] [stderr]     Checking rustc-serialize v0.3.22
[INFO] [stderr]     Checking regex-syntax v0.4.0
[INFO] [stderr]     Checking snowflake v1.2.0
[INFO] [stderr]     Checking byteorder v0.4.2
[INFO] [stderr]     Checking unicode-segmentation v1.1.0
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking net2 v0.2.26
[INFO] [stderr]     Checking thread-id v3.0.0
[INFO] [stderr]     Checking time v0.1.36
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking term_size v0.2.2
[INFO] [stderr]     Checking thread_local v0.3.2
[INFO] [stderr]     Checking aho-corasick v0.6.2
[INFO] [stderr]     Checking clap v2.20.4
[INFO] [stderr]     Checking miow v0.1.5
[INFO] [stderr]     Checking regex v0.2.1
[INFO] [stderr]     Checking mio v0.5.1
[INFO] [stderr]     Checking num-bigint v0.1.35
[INFO] [stderr]     Checking num-complex v0.1.35
[INFO] [stderr]     Checking env_logger v0.4.0
[INFO] [stderr]     Checking num-rational v0.1.35
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stderr]     Checking zookeeper v0.2.2
[INFO] [stderr]  Documenting zk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.04s
[INFO] running `Command { std: "docker" "inspect" "3ba5bef7245d67d37e9dbeee9acbc172a3143cea74ea063cb377d82f17b1acaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ba5bef7245d67d37e9dbeee9acbc172a3143cea74ea063cb377d82f17b1acaf", kill_on_drop: false }`
[INFO] [stdout] 3ba5bef7245d67d37e9dbeee9acbc172a3143cea74ea063cb377d82f17b1acaf