[INFO] fetching crate extern_executor 0.1.2...
[INFO] documenting extern_executor-0.1.2 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate extern_executor 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate extern_executor 0.1.2 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 extern_executor 0.1.2
[INFO] finished tweaking crates.io crate extern_executor 0.1.2
[INFO] tweaked toml for crates.io crate extern_executor 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "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] 9340895d341376ccc0368b94f347a76340465a06ccc0aee54cc9617274927249
[INFO] running `Command { std: "docker" "start" "-a" "9340895d341376ccc0368b94f347a76340465a06ccc0aee54cc9617274927249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9340895d341376ccc0368b94f347a76340465a06ccc0aee54cc9617274927249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9340895d341376ccc0368b94f347a76340465a06ccc0aee54cc9617274927249", kill_on_drop: false }`
[INFO] [stdout] 9340895d341376ccc0368b94f347a76340465a06ccc0aee54cc9617274927249
[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: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] [stdout] ec3d586a234a045cf39e17c1ef4753f392a45eefc09e7fd9db81b52923e55abe
[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" "ec3d586a234a045cf39e17c1ef4753f392a45eefc09e7fd9db81b52923e55abe", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling extern_executor v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting extern_executor v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.63s
[INFO] running `Command { std: "docker" "inspect" "ec3d586a234a045cf39e17c1ef4753f392a45eefc09e7fd9db81b52923e55abe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec3d586a234a045cf39e17c1ef4753f392a45eefc09e7fd9db81b52923e55abe", kill_on_drop: false }`
[INFO] [stdout] ec3d586a234a045cf39e17c1ef4753f392a45eefc09e7fd9db81b52923e55abe
[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" "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] 8b8039d0df071d44dc00e83e3aa995959ee3d4e2b0f0591a166b9802d2d27234
[INFO] running `Command { std: "docker" "start" "-a" "8b8039d0df071d44dc00e83e3aa995959ee3d4e2b0f0591a166b9802d2d27234", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling extern_executor v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting extern_executor v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.44s
[INFO] running `Command { std: "docker" "inspect" "8b8039d0df071d44dc00e83e3aa995959ee3d4e2b0f0591a166b9802d2d27234", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b8039d0df071d44dc00e83e3aa995959ee3d4e2b0f0591a166b9802d2d27234", kill_on_drop: false }`
[INFO] [stdout] 8b8039d0df071d44dc00e83e3aa995959ee3d4e2b0f0591a166b9802d2d27234