[INFO] fetching crate bip_utracker 0.4.0...
[INFO] documenting bip_utracker-0.4.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate bip_utracker 0.4.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate bip_utracker 0.4.0 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 bip_utracker 0.4.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate bip_utracker 0.4.0
[INFO] tweaked toml for crates.io crate bip_utracker 0.4.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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 bip_util v0.5.0
[INFO] [stderr]   Downloaded umio v0.3.0
[INFO] [stderr]   Downloaded bip_handshake v0.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stdout] 889bdc0f504ad9e8f2383fa521849ac784c6bf58d24bd73b78e34a5b78f62668
[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" "889bdc0f504ad9e8f2383fa521849ac784c6bf58d24bd73b78e34a5b78f62668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "889bdc0f504ad9e8f2383fa521849ac784c6bf58d24bd73b78e34a5b78f62668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "889bdc0f504ad9e8f2383fa521849ac784c6bf58d24bd73b78e34a5b78f62668", kill_on_drop: false }`
[INFO] [stdout] 889bdc0f504ad9e8f2383fa521849ac784c6bf58d24bd73b78e34a5b78f62668
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 29930eefbdddf8b32dc7b39776f48ffa5e354e2c33c2eb36ccaca16bb1925e5a
[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" "29930eefbdddf8b32dc7b39776f48ffa5e354e2c33c2eb36ccaca16bb1925e5a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking slab v0.1.3
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]     Checking bytes v0.3.0
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]     Checking tokio-timer v0.1.2
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking miow v0.1.5
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking mio v0.5.1
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking umio v0.3.0
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking bip_util v0.5.0
[INFO] [stderr]     Checking bip_handshake v0.7.1
[INFO] [stderr]  Documenting bip_utracker v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.16s
[INFO] running `Command { std: "docker" "inspect" "29930eefbdddf8b32dc7b39776f48ffa5e354e2c33c2eb36ccaca16bb1925e5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29930eefbdddf8b32dc7b39776f48ffa5e354e2c33c2eb36ccaca16bb1925e5a", kill_on_drop: false }`
[INFO] [stdout] 29930eefbdddf8b32dc7b39776f48ffa5e354e2c33c2eb36ccaca16bb1925e5a