[INFO] fetching crate cradle 0.2.2...
[INFO] documenting cradle-0.2.2 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate cradle 0.2.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate cradle 0.2.2 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 crates.io crate cradle 0.2.2
[INFO] finished tweaking crates.io crate cradle 0.2.2
[INFO] tweaked toml for crates.io crate cradle 0.2.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate cradle 0.2.2 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-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12407e17c3a54fe13fa5f145f9337c7c985f4593ecc4ccadccf7c797e4998c2b
[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" "12407e17c3a54fe13fa5f145f9337c7c985f4593ecc4ccadccf7c797e4998c2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12407e17c3a54fe13fa5f145f9337c7c985f4593ecc4ccadccf7c797e4998c2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12407e17c3a54fe13fa5f145f9337c7c985f4593ecc4ccadccf7c797e4998c2b", kill_on_drop: false }`
[INFO] [stdout] 12407e17c3a54fe13fa5f145f9337c7c985f4593ecc4ccadccf7c797e4998c2b
[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: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] d1ed3f3cec6c3095927e0ef24b9100b8d1b1fe8c87b8d9431e097ddda5b66790
[INFO] running `Command { std: "docker" "start" "-a" "d1ed3f3cec6c3095927e0ef24b9100b8d1b1fe8c87b8d9431e097ddda5b66790", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]  Documenting cradle v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.77s
[INFO] running `Command { std: "docker" "inspect" "d1ed3f3cec6c3095927e0ef24b9100b8d1b1fe8c87b8d9431e097ddda5b66790", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1ed3f3cec6c3095927e0ef24b9100b8d1b1fe8c87b8d9431e097ddda5b66790", kill_on_drop: false }`
[INFO] [stdout] d1ed3f3cec6c3095927e0ef24b9100b8d1b1fe8c87b8d9431e097ddda5b66790
[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" "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" "+beta-2022-05-20" "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] 6eeef3fe3891644f607ace33b2093c249e80b512f1269f84e9605a5a8d57b6b2
[INFO] running `Command { std: "docker" "start" "-a" "6eeef3fe3891644f607ace33b2093c249e80b512f1269f84e9605a5a8d57b6b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]  Documenting cradle v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.74s
[INFO] running `Command { std: "docker" "inspect" "6eeef3fe3891644f607ace33b2093c249e80b512f1269f84e9605a5a8d57b6b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6eeef3fe3891644f607ace33b2093c249e80b512f1269f84e9605a5a8d57b6b2", kill_on_drop: false }`
[INFO] [stdout] 6eeef3fe3891644f607ace33b2093c249e80b512f1269f84e9605a5a8d57b6b2