[INFO] fetching crate efficacy 0.3.1...
[INFO] documenting efficacy-0.3.1 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate efficacy 0.3.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate efficacy 0.3.1 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 efficacy 0.3.1
[INFO] finished tweaking crates.io crate efficacy 0.3.1
[INFO] tweaked toml for crates.io crate efficacy 0.3.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate efficacy 0.3.1 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 50dbe409c8eb39cd7781b04181b1dcb503da9fada76dee681fa1bd11c4183935
[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" "50dbe409c8eb39cd7781b04181b1dcb503da9fada76dee681fa1bd11c4183935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50dbe409c8eb39cd7781b04181b1dcb503da9fada76dee681fa1bd11c4183935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50dbe409c8eb39cd7781b04181b1dcb503da9fada76dee681fa1bd11c4183935", kill_on_drop: false }`
[INFO] [stdout] 50dbe409c8eb39cd7781b04181b1dcb503da9fada76dee681fa1bd11c4183935
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 6b0f527cc74c33a4130e3ab8c5ea07ed9ad6dc94a0ccaac73755bf27fc5acaf5
[INFO] running `Command { std: "docker" "start" "-a" "6b0f527cc74c33a4130e3ab8c5ea07ed9ad6dc94a0ccaac73755bf27fc5acaf5", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling nom v5.1.0
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking colored v1.9.2
[INFO] [stderr]    Compiling lexical-core v0.4.6
[INFO] [stderr]     Checking clap v2.27.1
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking serde-hjson v0.9.1
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking toml v0.5.5
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking config v0.10.1
[INFO] [stderr]  Documenting efficacy v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.94s
[INFO] running `Command { std: "docker" "inspect" "6b0f527cc74c33a4130e3ab8c5ea07ed9ad6dc94a0ccaac73755bf27fc5acaf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b0f527cc74c33a4130e3ab8c5ea07ed9ad6dc94a0ccaac73755bf27fc5acaf5", kill_on_drop: false }`
[INFO] [stdout] 6b0f527cc74c33a4130e3ab8c5ea07ed9ad6dc94a0ccaac73755bf27fc5acaf5