[INFO] fetching crate base_u256 0.1.1...
[INFO] documenting base_u256-0.1.1 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate base_u256 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate base_u256 0.1.1 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 base_u256 0.1.1
[INFO] finished tweaking crates.io crate base_u256 0.1.1
[INFO] tweaked toml for crates.io crate base_u256 0.1.1 written to /workspace/builds/worker-8/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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ux v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 9dc97a707010cc921db48772d65ae5a6027193699bc1dd11d107d073b11473f3
[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" "9dc97a707010cc921db48772d65ae5a6027193699bc1dd11d107d073b11473f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9dc97a707010cc921db48772d65ae5a6027193699bc1dd11d107d073b11473f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dc97a707010cc921db48772d65ae5a6027193699bc1dd11d107d073b11473f3", kill_on_drop: false }`
[INFO] [stdout] 9dc97a707010cc921db48772d65ae5a6027193699bc1dd11d107d073b11473f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] f14bc80c9661263974a656f792a4f975f757e4f2e914e6a614cbee65092614d4
[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" "f14bc80c9661263974a656f792a4f975f757e4f2e914e6a614cbee65092614d4", kill_on_drop: false }`
[INFO] [stderr]     Checking ux v0.1.3
[INFO] [stderr]  Documenting base_u256 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.90s
[INFO] running `Command { std: "docker" "inspect" "f14bc80c9661263974a656f792a4f975f757e4f2e914e6a614cbee65092614d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f14bc80c9661263974a656f792a4f975f757e4f2e914e6a614cbee65092614d4", kill_on_drop: false }`
[INFO] [stdout] f14bc80c9661263974a656f792a4f975f757e4f2e914e6a614cbee65092614d4
