[INFO] cloning repository https://github.com/muumu/rust-sample-inheritance-composition
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/muumu/rust-sample-inheritance-composition" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuumu%2Frust-sample-inheritance-composition", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuumu%2Frust-sample-inheritance-composition'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd7093180b552470ccd1729a52586a77a836b9b5
[INFO] documenting muumu/rust-sample-inheritance-composition against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuumu%2Frust-sample-inheritance-composition" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/muumu/rust-sample-inheritance-composition on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/muumu/rust-sample-inheritance-composition
[INFO] finished tweaking git repo https://github.com/muumu/rust-sample-inheritance-composition
[INFO] tweaked toml for git repo https://github.com/muumu/rust-sample-inheritance-composition written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/muumu/rust-sample-inheritance-composition already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2022-05-20" "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] 0360f8a872ac69d82e83d2c3e42980dcdc597e1dc8dd731718fa03a295d2d28f
[INFO] running `Command { std: "docker" "start" "-a" "0360f8a872ac69d82e83d2c3e42980dcdc597e1dc8dd731718fa03a295d2d28f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0360f8a872ac69d82e83d2c3e42980dcdc597e1dc8dd731718fa03a295d2d28f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0360f8a872ac69d82e83d2c3e42980dcdc597e1dc8dd731718fa03a295d2d28f", kill_on_drop: false }`
[INFO] [stdout] 0360f8a872ac69d82e83d2c3e42980dcdc597e1dc8dd731718fa03a295d2d28f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2022-05-20" "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] 899bb64b169223fb2037aa05fd603ebac66610a16a8df180b5087111195201c6
[INFO] running `Command { std: "docker" "start" "-a" "899bb64b169223fb2037aa05fd603ebac66610a16a8df180b5087111195201c6", kill_on_drop: false }`
[INFO] [stderr]  Documenting composition v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.40s
[INFO] running `Command { std: "docker" "inspect" "899bb64b169223fb2037aa05fd603ebac66610a16a8df180b5087111195201c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "899bb64b169223fb2037aa05fd603ebac66610a16a8df180b5087111195201c6", kill_on_drop: false }`
[INFO] [stdout] 899bb64b169223fb2037aa05fd603ebac66610a16a8df180b5087111195201c6