[INFO] fetching crate grouping_by 0.2.1...
[INFO] documenting grouping_by-0.2.1 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate grouping_by 0.2.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate grouping_by 0.2.1 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate grouping_by 0.2.1
[INFO] finished tweaking crates.io crate grouping_by 0.2.1
[INFO] tweaked toml for crates.io crate grouping_by 0.2.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a412b43b8d6e78d0f9d4f714ff2819b3232085ccbd60f5ecc15cabe04471eead
[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" "a412b43b8d6e78d0f9d4f714ff2819b3232085ccbd60f5ecc15cabe04471eead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a412b43b8d6e78d0f9d4f714ff2819b3232085ccbd60f5ecc15cabe04471eead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a412b43b8d6e78d0f9d4f714ff2819b3232085ccbd60f5ecc15cabe04471eead", kill_on_drop: false }`
[INFO] [stdout] a412b43b8d6e78d0f9d4f714ff2819b3232085ccbd60f5ecc15cabe04471eead
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "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] ee84cd7e978a9143f172159bf258c482f38d70669e3c668f34164d9d890cf59e
[INFO] running `Command { std: "docker" "start" "-a" "ee84cd7e978a9143f172159bf258c482f38d70669e3c668f34164d9d890cf59e", kill_on_drop: false }`
[INFO] [stderr]  Documenting grouping_by v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "ee84cd7e978a9143f172159bf258c482f38d70669e3c668f34164d9d890cf59e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee84cd7e978a9143f172159bf258c482f38d70669e3c668f34164d9d890cf59e", kill_on_drop: false }`
[INFO] [stdout] ee84cd7e978a9143f172159bf258c482f38d70669e3c668f34164d9d890cf59e
