[INFO] cloning repository https://github.com/willcassella/musium
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/willcassella/musium" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillcassella%2Fmusium", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillcassella%2Fmusium'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d34826f74622c00eac7a050554ba33a12c1c03fa
[INFO] documenting willcassella/musium 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%2Fwillcassella%2Fmusium" "/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/willcassella/musium 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/willcassella/musium
[INFO] finished tweaking git repo https://github.com/willcassella/musium
[INFO] tweaked toml for git repo https://github.com/willcassella/musium written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/willcassella/musium 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 metaflac v0.2.3
[INFO] [stderr]   Downloaded id3 v0.5.1
[INFO] [stderr]   Downloaded tree_magic v0.2.3
[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] e4d01d0115530a9aedc19260f4d543ef7fd68e72f3a5c4e5fa16b434de45a23f
[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" "e4d01d0115530a9aedc19260f4d543ef7fd68e72f3a5c4e5fa16b434de45a23f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4d01d0115530a9aedc19260f4d543ef7fd68e72f3a5c4e5fa16b434de45a23f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4d01d0115530a9aedc19260f4d543ef7fd68e72f3a5c4e5fa16b434de45a23f", kill_on_drop: false }`
[INFO] [stdout] e4d01d0115530a9aedc19260f4d543ef7fd68e72f3a5c4e5fa16b434de45a23f
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b002f78cf5a06cd0538cb5864d8369c0bdf9ebf4819e704cff36b82f6cd8a104
[INFO] running `Command { std: "docker" "start" "-a" "b002f78cf5a06cd0538cb5864d8369c0bdf9ebf4819e704cff36b82f6cd8a104", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking encoding v0.2.33
[INFO] [stderr]     Checking metaflac v0.2.3
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking id3 v0.5.1
[INFO] [stderr]     Checking tree_magic v0.2.3
[INFO] [stderr]  Documenting musium v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.04s
[INFO] running `Command { std: "docker" "inspect" "b002f78cf5a06cd0538cb5864d8369c0bdf9ebf4819e704cff36b82f6cd8a104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b002f78cf5a06cd0538cb5864d8369c0bdf9ebf4819e704cff36b82f6cd8a104", kill_on_drop: false }`
[INFO] [stdout] b002f78cf5a06cd0538cb5864d8369c0bdf9ebf4819e704cff36b82f6cd8a104