[INFO] fetching crate librespot 0.2.0...
[INFO] documenting librespot-0.2.0 against 1.55.0 for beta-1.56-rustdoc-1
[INFO] extracting crate librespot 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate librespot 0.2.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate librespot 0.2.0
[INFO] finished tweaking crates.io crate librespot 0.2.0
[INFO] tweaked toml for crates.io crate librespot 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate librespot 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded if-addrs v0.6.5
[INFO] [stderr]   Downloaded regex v1.5.1
[INFO] [stderr]   Downloaded librespot-connect v0.2.0
[INFO] [stderr]   Downloaded priority-queue v1.1.1
[INFO] [stderr]   Downloaded libpulse-simple-sys v1.16.1
[INFO] [stderr]   Downloaded libmdns v0.6.1
[INFO] [stderr]   Downloaded libpulse-simple-binding v2.23.0
[INFO] [stderr]   Downloaded libpulse-sys v1.18.0
[INFO] [stderr]   Downloaded libpulse-binding v2.23.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.24
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d620ed1b8c2338dc2c19a36d8d2750b294e2c1d6f0ce976fc7a8727dc5f3330f
[INFO] running `Command { std: "docker" "start" "-a" "d620ed1b8c2338dc2c19a36d8d2750b294e2c1d6f0ce976fc7a8727dc5f3330f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d620ed1b8c2338dc2c19a36d8d2750b294e2c1d6f0ce976fc7a8727dc5f3330f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d620ed1b8c2338dc2c19a36d8d2750b294e2c1d6f0ce976fc7a8727dc5f3330f", kill_on_drop: false }`
[INFO] [stdout] d620ed1b8c2338dc2c19a36d8d2750b294e2c1d6f0ce976fc7a8727dc5f3330f
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bde22ccaef2fdbbc71891005f69bef8d8af3b5c0868b415212b301efa9c4c6f8
[INFO] running `Command { std: "docker" "start" "-a" "bde22ccaef2fdbbc71891005f69bef8d8af3b5c0868b415212b301efa9c4c6f8", 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 libc v0.2.94
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking futures-sink v0.3.14
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]    Compiling httparse v1.4.0
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
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[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling priority-queue v1.1.1
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking unicode-bidi v0.3.5
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[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]     Checking lewton v0.10.2
[INFO] [stderr]    Compiling quote v1.0.9
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[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking cipher v0.2.5
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[INFO] [stderr]    Compiling time v0.1.43
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[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.11
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[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking nix v0.20.0
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[INFO] [stderr]     Checking if-addrs v0.6.5
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rpassword v5.0.1
[INFO] [stderr]     Checking pbkdf2 v0.8.0
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]     Checking aes v0.6.0
[INFO] [stderr]     Checking aes-ctr v0.6.0
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking headers v0.3.4
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling vergen v3.2.0
[INFO] [stderr]    Compiling librespot-core v0.2.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking alsa v0.5.0
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling zerocopy-derive v0.2.0
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking zerocopy v0.3.0
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking cpal v0.13.3
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[INFO] [stderr]     Checking tokio-stream v0.1.5
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking hyper-proxy v0.9.1
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking multimap v0.8.3
[INFO] [stderr]     Checking libmdns v0.6.1
[INFO] [stderr]     Checking librespot-metadata v0.2.0
[INFO] [stderr]     Checking librespot-audio v0.2.0
[INFO] [stderr]     Checking librespot-playback v0.2.0
[INFO] [stderr]     Checking librespot-connect v0.2.0
[INFO] [stderr]  Documenting librespot v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.19s
[INFO] running `Command { std: "docker" "inspect" "bde22ccaef2fdbbc71891005f69bef8d8af3b5c0868b415212b301efa9c4c6f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bde22ccaef2fdbbc71891005f69bef8d8af3b5c0868b415212b301efa9c4c6f8", kill_on_drop: false }`
[INFO] [stdout] bde22ccaef2fdbbc71891005f69bef8d8af3b5c0868b415212b301efa9c4c6f8