[INFO] fetching crate concurrent-kv 0.2.1...
[INFO] documenting concurrent-kv-0.2.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate concurrent-kv 0.2.1 into /workspace/builds/worker-98/source
[INFO] validating manifest of crates.io crate concurrent-kv 0.2.1 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 concurrent-kv 0.2.1
[INFO] finished tweaking crates.io crate concurrent-kv 0.2.1
[INFO] tweaked toml for crates.io crate concurrent-kv 0.2.1 written to /workspace/builds/worker-98/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-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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] f87722edf4cb214e6ba04ea28ddb8ba7f6ed29cb6792bb0cfe9110e5bf39eeb3
[INFO] running `Command { std: "docker" "start" "-a" "f87722edf4cb214e6ba04ea28ddb8ba7f6ed29cb6792bb0cfe9110e5bf39eeb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f87722edf4cb214e6ba04ea28ddb8ba7f6ed29cb6792bb0cfe9110e5bf39eeb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f87722edf4cb214e6ba04ea28ddb8ba7f6ed29cb6792bb0cfe9110e5bf39eeb3", kill_on_drop: false }`
[INFO] [stdout] f87722edf4cb214e6ba04ea28ddb8ba7f6ed29cb6792bb0cfe9110e5bf39eeb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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] f17d3ea1e4722cc6bf652a69243569200fa1bddf159cb4bb48309e16b048dcb5
[INFO] running `Command { std: "docker" "start" "-a" "f17d3ea1e4722cc6bf652a69243569200fa1bddf159cb4bb48309e16b048dcb5", kill_on_drop: false }`
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]  Documenting concurrent-kv v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.41s
[INFO] running `Command { std: "docker" "inspect" "f17d3ea1e4722cc6bf652a69243569200fa1bddf159cb4bb48309e16b048dcb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f17d3ea1e4722cc6bf652a69243569200fa1bddf159cb4bb48309e16b048dcb5", kill_on_drop: false }`
[INFO] [stdout] f17d3ea1e4722cc6bf652a69243569200fa1bddf159cb4bb48309e16b048dcb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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] [stdout] 263ca5798bf72d38d34199f053d92f21905b4be864251fc2c995ae79603962c4
[INFO] running `Command { std: "docker" "start" "-a" "263ca5798bf72d38d34199f053d92f21905b4be864251fc2c995ae79603962c4", kill_on_drop: false }`
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]  Documenting concurrent-kv v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "263ca5798bf72d38d34199f053d92f21905b4be864251fc2c995ae79603962c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "263ca5798bf72d38d34199f053d92f21905b4be864251fc2c995ae79603962c4", kill_on_drop: false }`
[INFO] [stdout] 263ca5798bf72d38d34199f053d92f21905b4be864251fc2c995ae79603962c4