[INFO] fetching crate id-arena 2.2.1...
[INFO] documenting id-arena-2.2.1 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate id-arena 2.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate id-arena 2.2.1 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate id-arena 2.2.1
[INFO] finished tweaking crates.io crate id-arena 2.2.1
[INFO] tweaked toml for crates.io crate id-arena 2.2.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-08-01" "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] dc4800e8210eb4dfe374dd44536cab441fa9ba1d25ff76300dbcc9f92384d97d
[INFO] running `Command { std: "docker" "start" "-a" "dc4800e8210eb4dfe374dd44536cab441fa9ba1d25ff76300dbcc9f92384d97d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc4800e8210eb4dfe374dd44536cab441fa9ba1d25ff76300dbcc9f92384d97d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc4800e8210eb4dfe374dd44536cab441fa9ba1d25ff76300dbcc9f92384d97d", kill_on_drop: false }`
[INFO] [stdout] dc4800e8210eb4dfe374dd44536cab441fa9ba1d25ff76300dbcc9f92384d97d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ec3e601c2602bc00391d179e2beb42c7b237976d1a5df5c549825921b09e636
[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" "5ec3e601c2602bc00391d179e2beb42c7b237976d1a5df5c549825921b09e636", kill_on_drop: false }`
[INFO] [stderr]  Documenting id-arena v2.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "5ec3e601c2602bc00391d179e2beb42c7b237976d1a5df5c549825921b09e636", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ec3e601c2602bc00391d179e2beb42c7b237976d1a5df5c549825921b09e636", kill_on_drop: false }`
[INFO] [stdout] 5ec3e601c2602bc00391d179e2beb42c7b237976d1a5df5c549825921b09e636
