[INFO] fetching crate maidsafe_utilities 0.19.0...
[INFO] documenting maidsafe_utilities-0.19.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate maidsafe_utilities 0.19.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate maidsafe_utilities 0.19.0 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 maidsafe_utilities 0.19.0
[INFO] finished tweaking crates.io crate maidsafe_utilities 0.19.0
[INFO] tweaked toml for crates.io crate maidsafe_utilities 0.19.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate maidsafe_utilities 0.19.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] c4509ebf5304cb8378f910bbfceeef51317f03115dc63c01835413779d8fcceb
[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" "c4509ebf5304cb8378f910bbfceeef51317f03115dc63c01835413779d8fcceb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4509ebf5304cb8378f910bbfceeef51317f03115dc63c01835413779d8fcceb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4509ebf5304cb8378f910bbfceeef51317f03115dc63c01835413779d8fcceb", kill_on_drop: false }`
[INFO] [stdout] c4509ebf5304cb8378f910bbfceeef51317f03115dc63c01835413779d8fcceb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 224a0bf5af265841ee5c43a8278be1532c027783b49d947abb1cd7deeaf7d452
[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" "224a0bf5af265841ee5c43a8278be1532c027783b49d947abb1cd7deeaf7d452", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.20
[INFO] [stderr]     Checking unwrap v1.2.1
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking bincode v0.8.0
[INFO] [stderr]     Checking config_file_handler v0.11.0
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]     Checking serde_yaml v0.7.5
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]     Checking log4rs v0.7.0
[INFO] [stderr]  Documenting maidsafe_utilities v0.19.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.41s
[INFO] running `Command { std: "docker" "inspect" "224a0bf5af265841ee5c43a8278be1532c027783b49d947abb1cd7deeaf7d452", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "224a0bf5af265841ee5c43a8278be1532c027783b49d947abb1cd7deeaf7d452", kill_on_drop: false }`
[INFO] [stdout] 224a0bf5af265841ee5c43a8278be1532c027783b49d947abb1cd7deeaf7d452