[INFO] cloning repository https://github.com/Dylan-DPC/leather
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Dylan-DPC/leather" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDylan-DPC%2Fleather", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDylan-DPC%2Fleather'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3530aa8cfc7060e66ba03662c4969fd9d4db9ae0
[INFO] documenting Dylan-DPC/leather 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%2FDylan-DPC%2Fleather" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Dylan-DPC/leather 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/Dylan-DPC/leather
[INFO] finished tweaking git repo https://github.com/Dylan-DPC/leather
[INFO] tweaked toml for git repo https://github.com/Dylan-DPC/leather written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/Dylan-DPC/leather 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 termios v0.3.0
[INFO] [stderr]   Downloaded interactor v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c122fa6879a71dddbade885463417152948cbbc781fb985dc853b825fa2a908c
[INFO] running `Command { std: "docker" "start" "-a" "c122fa6879a71dddbade885463417152948cbbc781fb985dc853b825fa2a908c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c122fa6879a71dddbade885463417152948cbbc781fb985dc853b825fa2a908c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c122fa6879a71dddbade885463417152948cbbc781fb985dc853b825fa2a908c", kill_on_drop: false }`
[INFO] [stdout] c122fa6879a71dddbade885463417152948cbbc781fb985dc853b825fa2a908c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] f22b32eda28b2d4d02bbaa874b33bc2a0e60837b92045f6296fa70e4ffab534f
[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" "f22b32eda28b2d4d02bbaa874b33bc2a0e60837b92045f6296fa70e4ffab534f", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]    Compiling cc v1.0.10
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]     Checking quick-error v1.2.1
[INFO] [stderr]     Checking rustc-demangle v0.1.7
[INFO] [stderr]     Checking serde v1.0.42
[INFO] [stderr]    Compiling proc-macro2 v0.3.6
[INFO] [stderr]     Checking atty v0.2.9
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking termios v0.3.0
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking regex-syntax v0.5.5
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking interactor v0.1.1
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]     Checking rayon v0.9.0
[INFO] [stderr]    Compiling serde_derive_internals v0.23.1
[INFO] [stderr]     Checking env_logger v0.5.9
[INFO] [stderr]    Compiling structopt-derive v0.2.7
[INFO] [stderr]    Compiling serde_derive v1.0.42
[INFO] [stderr]     Checking structopt v0.2.7
[INFO] [stderr]     Checking backtrace v0.3.6
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking quicli v0.2.0
[INFO] [stderr]  Documenting leather v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.32s
[INFO] running `Command { std: "docker" "inspect" "f22b32eda28b2d4d02bbaa874b33bc2a0e60837b92045f6296fa70e4ffab534f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f22b32eda28b2d4d02bbaa874b33bc2a0e60837b92045f6296fa70e4ffab534f", kill_on_drop: false }`
[INFO] [stdout] f22b32eda28b2d4d02bbaa874b33bc2a0e60837b92045f6296fa70e4ffab534f