[INFO] fetching crate x1b 0.8.0...
[INFO] documenting x1b-0.8.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate x1b 0.8.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate x1b 0.8.0 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 crates.io crate x1b 0.8.0
[INFO] finished tweaking crates.io crate x1b 0.8.0
[INFO] tweaked toml for crates.io crate x1b 0.8.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] cdf5c6203614c363b4f58920b46dc86901bbcf452d2fada9e212c28e5bb44a39
[INFO] running `Command { std: "docker" "start" "-a" "cdf5c6203614c363b4f58920b46dc86901bbcf452d2fada9e212c28e5bb44a39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdf5c6203614c363b4f58920b46dc86901bbcf452d2fada9e212c28e5bb44a39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdf5c6203614c363b4f58920b46dc86901bbcf452d2fada9e212c28e5bb44a39", kill_on_drop: false }`
[INFO] [stdout] cdf5c6203614c363b4f58920b46dc86901bbcf452d2fada9e212c28e5bb44a39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stdout] 77a022a68d1cf3dfed53270fa63c25c959e991b86a5732e8cfcfe8b1aff88668
[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" "77a022a68d1cf3dfed53270fa63c25c959e991b86a5732e8cfcfe8b1aff88668", kill_on_drop: false }`
[INFO] [stderr]  Documenting x1b v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.19s
[INFO] running `Command { std: "docker" "inspect" "77a022a68d1cf3dfed53270fa63c25c959e991b86a5732e8cfcfe8b1aff88668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77a022a68d1cf3dfed53270fa63c25c959e991b86a5732e8cfcfe8b1aff88668", kill_on_drop: false }`
[INFO] [stdout] 77a022a68d1cf3dfed53270fa63c25c959e991b86a5732e8cfcfe8b1aff88668
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", 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] 71383fb1490a5a7008a8802b72078bc2f4f403cda9a97a3fdcb12d1446397ff9
[INFO] running `Command { std: "docker" "start" "-a" "71383fb1490a5a7008a8802b72078bc2f4f403cda9a97a3fdcb12d1446397ff9", kill_on_drop: false }`
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]  Documenting x1b v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.25s
[INFO] running `Command { std: "docker" "inspect" "71383fb1490a5a7008a8802b72078bc2f4f403cda9a97a3fdcb12d1446397ff9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71383fb1490a5a7008a8802b72078bc2f4f403cda9a97a3fdcb12d1446397ff9", kill_on_drop: false }`
[INFO] [stdout] 71383fb1490a5a7008a8802b72078bc2f4f403cda9a97a3fdcb12d1446397ff9