[INFO] cloning repository https://github.com/quebin31/muso
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/quebin31/muso" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquebin31%2Fmuso", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquebin31%2Fmuso'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be87e0dbfce0f7481a8d7d7692dc96824dcf5d9c
[INFO] documenting quebin31/muso against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquebin31%2Fmuso" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/quebin31/muso 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 git repo https://github.com/quebin31/muso
[INFO] finished tweaking git repo https://github.com/quebin31/muso
[INFO] tweaked toml for git repo https://github.com/quebin31/muso written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/quebin31/muso 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 thiserror-impl v1.0.11
[INFO] [stderr]   Downloaded thiserror v1.0.11
[INFO] [stderr]   Downloaded tinyvec v0.3.2
[INFO] [stderr]   Downloaded anyhow v1.0.27
[INFO] [stderr]   Downloaded infer v0.1.4
[INFO] [stderr]   Downloaded lexical-core v0.6.2
[INFO] [stderr]   Downloaded metaflac v0.2.1
[INFO] [stderr]   Downloaded common_macros v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 2fe44aa2827f613a759a4b0630f781f9e10dcdff981ed6bfb32039e63887539a
[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" "2fe44aa2827f613a759a4b0630f781f9e10dcdff981ed6bfb32039e63887539a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fe44aa2827f613a759a4b0630f781f9e10dcdff981ed6bfb32039e63887539a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fe44aa2827f613a759a4b0630f781f9e10dcdff981ed6bfb32039e63887539a", kill_on_drop: false }`
[INFO] [stdout] 2fe44aa2827f613a759a4b0630f781f9e10dcdff981ed6bfb32039e63887539a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 9427be70d7f4709ffb17ffb5e6b9b30111d4e3d8a2859c41401dc0d80d048fe2
[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" "9427be70d7f4709ffb17ffb5e6b9b30111d4e3d8a2859c41401dc0d80d048fe2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling memchr v2.3.2
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]     Checking regex-syntax v0.6.14
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]    Compiling anyhow v1.0.27
[INFO] [stderr]     Checking termcolor v0.3.6
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking tinyvec v0.3.2
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking common_macros v0.1.1
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]     Checking ogg v0.7.0
[INFO] [stderr]     Checking infer v0.1.4
[INFO] [stderr]     Checking backtrace-sys v0.1.32
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling lexical-core v0.6.2
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]     Checking backtrace v0.3.44
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking inotify v0.7.0
[INFO] [stderr]     Checking metaflac v0.2.1
[INFO] [stderr]     Checking shellexpand v2.0.0
[INFO] [stderr]     Checking lewton v0.10.1
[INFO] [stderr]     Checking notify v4.0.15
[INFO] [stderr]     Checking aho-corasick v0.7.8
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking id3 v0.5.0
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking os_type v2.2.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.11
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking thiserror v1.0.11
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking human-panic v1.0.1
[INFO] [stderr]  Documenting muso v1.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.01s
[INFO] running `Command { std: "docker" "inspect" "9427be70d7f4709ffb17ffb5e6b9b30111d4e3d8a2859c41401dc0d80d048fe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9427be70d7f4709ffb17ffb5e6b9b30111d4e3d8a2859c41401dc0d80d048fe2", kill_on_drop: false }`
[INFO] [stdout] 9427be70d7f4709ffb17ffb5e6b9b30111d4e3d8a2859c41401dc0d80d048fe2