[INFO] fetching crate librespot 0.1.3...
[INFO] documenting librespot-0.1.3 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate librespot 0.1.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate librespot 0.1.3 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 librespot 0.1.3
[INFO] finished tweaking crates.io crate librespot 0.1.3
[INFO] tweaked toml for crates.io crate librespot 0.1.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate librespot 0.1.3 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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 22dec877409d717651e4f9fc036c34e235b13a36bb2e3a1ee8eb8ce47d9ca410
[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" "22dec877409d717651e4f9fc036c34e235b13a36bb2e3a1ee8eb8ce47d9ca410", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22dec877409d717651e4f9fc036c34e235b13a36bb2e3a1ee8eb8ce47d9ca410", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22dec877409d717651e4f9fc036c34e235b13a36bb2e3a1ee8eb8ce47d9ca410", kill_on_drop: false }`
[INFO] [stdout] 22dec877409d717651e4f9fc036c34e235b13a36bb2e3a1ee8eb8ce47d9ca410
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] cb72e87fb495b9dd684a596945f071fb6ee1dfdf99812c53ef093931ed7e7410
[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" "cb72e87fb495b9dd684a596945f071fb6ee1dfdf99812c53ef093931ed7e7410", kill_on_drop: false }`
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]     Checking c_linked_list v1.1.1
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking rpassword v3.0.2
[INFO] [stderr]     Checking multimap v0.8.1
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking alsa-sys v0.1.2
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking get_if_addrs v0.5.3
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking block-modes v0.3.3
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking cpal v0.8.2
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-signal v0.2.9
[INFO] [stderr]     Checking num-integer v0.1.43
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking tokio-process v0.2.5
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking num-bigint v0.2.6
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling chrono v0.4.13
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking libmdns v0.2.6
[INFO] [stderr]     Checking nalgebra v0.18.1
[INFO] [stderr]    Compiling vergen v3.1.0
[INFO] [stderr]     Checking hyper v0.11.27
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling librespot-core v0.1.3
[INFO] [stderr]     Checking hyper-proxy v0.4.1
[INFO] [stderr]     Checking librespot-metadata v0.1.3
[INFO] [stderr]     Checking librespot-audio v0.1.3
[INFO] [stderr]     Checking rodio v0.9.0
[INFO] [stderr]     Checking librespot-playback v0.1.3
[INFO] [stderr]     Checking librespot-connect v0.1.3
[INFO] [stderr]  Documenting librespot v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.85s
[INFO] running `Command { std: "docker" "inspect" "cb72e87fb495b9dd684a596945f071fb6ee1dfdf99812c53ef093931ed7e7410", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb72e87fb495b9dd684a596945f071fb6ee1dfdf99812c53ef093931ed7e7410", kill_on_drop: false }`
[INFO] [stdout] cb72e87fb495b9dd684a596945f071fb6ee1dfdf99812c53ef093931ed7e7410