[INFO] fetching crate ergothic 0.1.4...
[INFO] documenting ergothic-0.1.4 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate ergothic 0.1.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ergothic 0.1.4 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 ergothic 0.1.4
[INFO] finished tweaking crates.io crate ergothic 0.1.4
[INFO] tweaked toml for crates.io crate ergothic 0.1.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 2c99150940772a9223f2c683a69e1aa71020270493d6e78c05f5fa79abacacc1
[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" "2c99150940772a9223f2c683a69e1aa71020270493d6e78c05f5fa79abacacc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c99150940772a9223f2c683a69e1aa71020270493d6e78c05f5fa79abacacc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c99150940772a9223f2c683a69e1aa71020270493d6e78c05f5fa79abacacc1", kill_on_drop: false }`
[INFO] [stdout] 2c99150940772a9223f2c683a69e1aa71020270493d6e78c05f5fa79abacacc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] eb55cee5870c9d3fe1c90d702b1b5f5addb8fa5290bbd6f3dadd5aeec0282aa6
[INFO] running `Command { std: "docker" "start" "-a" "eb55cee5870c9d3fe1c90d702b1b5f5addb8fa5290bbd6f3dadd5aeec0282aa6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking try_from v0.2.2
[INFO] [stderr]     Checking md5 v0.3.8
[INFO] [stderr]     Checking bufstream v0.1.4
[INFO] [stderr]     Checking data-encoding v2.3.0
[INFO] [stderr]     Checking separator v0.3.1
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking argparse v0.2.2
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]     Checking semver v0.8.0
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]     Checking scan_fmt v0.1.3
[INFO] [stderr]     Checking digest v0.7.6
[INFO] [stderr]     Checking crypto-mac v0.6.2
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking hmac v0.6.3
[INFO] [stderr]     Checking sha-1 v0.7.0
[INFO] [stderr]     Checking md-5 v0.7.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking csv v0.15.0
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking prettytable-rs v0.7.0
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking simple_logger v0.5.0
[INFO] [stderr]     Checking pbkdf2 v0.2.3
[INFO] [stderr]     Checking textnonce v0.6.5
[INFO] [stderr]     Checking bson v0.13.0
[INFO] [stderr]     Checking bson v0.12.3
[INFO] [stderr]     Checking mongodb v0.3.12
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]  Documenting ergothic v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.74s
[INFO] running `Command { std: "docker" "inspect" "eb55cee5870c9d3fe1c90d702b1b5f5addb8fa5290bbd6f3dadd5aeec0282aa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb55cee5870c9d3fe1c90d702b1b5f5addb8fa5290bbd6f3dadd5aeec0282aa6", kill_on_drop: false }`
[INFO] [stdout] eb55cee5870c9d3fe1c90d702b1b5f5addb8fa5290bbd6f3dadd5aeec0282aa6