[INFO] fetching crate herkulex_communicator 0.2.6...
[INFO] documenting herkulex_communicator-0.2.6 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate herkulex_communicator 0.2.6 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate herkulex_communicator 0.2.6 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate herkulex_communicator 0.2.6
[INFO] finished tweaking crates.io crate herkulex_communicator 0.2.6
[INFO] tweaked toml for crates.io crate herkulex_communicator 0.2.6 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate herkulex_communicator 0.2.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded drs-0x01 v0.3.0
[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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", 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] e623dd238d1ddb1a324043b31c87c245cfabc7a5316876de3d95c4d3bb56810d
[INFO] running `Command { std: "docker" "start" "-a" "e623dd238d1ddb1a324043b31c87c245cfabc7a5316876de3d95c4d3bb56810d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e623dd238d1ddb1a324043b31c87c245cfabc7a5316876de3d95c4d3bb56810d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e623dd238d1ddb1a324043b31c87c245cfabc7a5316876de3d95c4d3bb56810d", kill_on_drop: false }`
[INFO] [stdout] e623dd238d1ddb1a324043b31c87c245cfabc7a5316876de3d95c4d3bb56810d
[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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03b0b160831da89396ea2c19f107657c471606dda9713d65270eb6de030f4fb5
[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" "03b0b160831da89396ea2c19f107657c471606dda9713d65270eb6de030f4fb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking array-macro v1.0.4
[INFO] [stderr]     Checking xi-unicode v0.2.0
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking drs-0x01 v0.3.0
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking signal-hook v0.1.13
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking serialport v3.3.0
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling enum-map-derive v0.4.3
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking enum-map v0.6.2
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking ahash v0.2.18
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling enumset_derive v0.4.4
[INFO] [stderr]     Checking enumset v0.4.5
[INFO] [stderr]     Checking cursive v0.14.0
[INFO] [stderr]  Documenting herkulex_communicator v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.81s
[INFO] running `Command { std: "docker" "inspect" "03b0b160831da89396ea2c19f107657c471606dda9713d65270eb6de030f4fb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03b0b160831da89396ea2c19f107657c471606dda9713d65270eb6de030f4fb5", kill_on_drop: false }`
[INFO] [stdout] 03b0b160831da89396ea2c19f107657c471606dda9713d65270eb6de030f4fb5