[INFO] cloning repository https://github.com/Fancyflame/mcmu-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Fancyflame/mcmu-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFancyflame%2Fmcmu-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFancyflame%2Fmcmu-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 51f4a10c98c4b5067f35acaf4160b81be211cb93
[INFO] documenting Fancyflame/mcmu-rs against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFancyflame%2Fmcmu-rs" "/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/Fancyflame/mcmu-rs on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Fancyflame/mcmu-rs
[INFO] finished tweaking git repo https://github.com/Fancyflame/mcmu-rs
[INFO] tweaked toml for git repo https://github.com/Fancyflame/mcmu-rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Fancyflame/mcmu-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded anyhow v1.0.41
[INFO] [stderr]   Downloaded libc v0.2.96
[INFO] [stderr]   Downloaded tokio v1.8.2
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "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] 5b0384d24de3a46fbfc5e4d54690cedbebd2c33f8ad3f98c551b1bae276b3c40
[INFO] running `Command { std: "docker" "start" "-a" "5b0384d24de3a46fbfc5e4d54690cedbebd2c33f8ad3f98c551b1bae276b3c40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b0384d24de3a46fbfc5e4d54690cedbebd2c33f8ad3f98c551b1bae276b3c40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b0384d24de3a46fbfc5e4d54690cedbebd2c33f8ad3f98c551b1bae276b3c40", kill_on_drop: false }`
[INFO] [stdout] 5b0384d24de3a46fbfc5e4d54690cedbebd2c33f8ad3f98c551b1bae276b3c40
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "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] c913ca41780d2406d393020f4f55d7812cf66303ea93f2e07944cd219f2ca74e
[INFO] running `Command { std: "docker" "start" "-a" "c913ca41780d2406d393020f4f55d7812cf66303ea93f2e07944cd219f2ca74e", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.41
[INFO] [stderr]    Compiling tokio v1.8.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]  Documenting mcmu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.39s
[INFO] running `Command { std: "docker" "inspect" "c913ca41780d2406d393020f4f55d7812cf66303ea93f2e07944cd219f2ca74e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c913ca41780d2406d393020f4f55d7812cf66303ea93f2e07944cd219f2ca74e", kill_on_drop: false }`
[INFO] [stdout] c913ca41780d2406d393020f4f55d7812cf66303ea93f2e07944cd219f2ca74e