[INFO] fetching crate fctool 0.5.0...
[INFO] documenting fctool-0.5.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate fctool 0.5.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate fctool 0.5.0 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 fctool 0.5.0
[INFO] finished tweaking crates.io crate fctool 0.5.0
[INFO] tweaked toml for crates.io crate fctool 0.5.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate fctool 0.5.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] d95591019c135ff0207e4c1a8ae6105f1ea46f4224c6350e170c903c834b1f2e
[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" "d95591019c135ff0207e4c1a8ae6105f1ea46f4224c6350e170c903c834b1f2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d95591019c135ff0207e4c1a8ae6105f1ea46f4224c6350e170c903c834b1f2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d95591019c135ff0207e4c1a8ae6105f1ea46f4224c6350e170c903c834b1f2e", kill_on_drop: false }`
[INFO] [stdout] d95591019c135ff0207e4c1a8ae6105f1ea46f4224c6350e170c903c834b1f2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 4fb0aa03225288ee5b691e92ac20f4d7a60811163e098263a03fa36d96ae4d85
[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" "4fb0aa03225288ee5b691e92ac20f4d7a60811163e098263a03fa36d96ae4d85", 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] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling bit-vec v0.5.1
[INFO] [stderr]    Compiling lalrpop-util v0.17.2
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling ena v0.13.1
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling sha2 v0.8.1
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling bit-set v0.5.1
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling structopt-derive v0.4.6
[INFO] [stderr]     Checking structopt v0.3.13
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling lalrpop v0.17.2
[INFO] [stderr]    Compiling fctool v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting fctool v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 33s
[INFO] running `Command { std: "docker" "inspect" "4fb0aa03225288ee5b691e92ac20f4d7a60811163e098263a03fa36d96ae4d85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fb0aa03225288ee5b691e92ac20f4d7a60811163e098263a03fa36d96ae4d85", kill_on_drop: false }`
[INFO] [stdout] 4fb0aa03225288ee5b691e92ac20f4d7a60811163e098263a03fa36d96ae4d85