[INFO] fetching crate m6arr 0.2.0...
[INFO] documenting m6arr-0.2.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate m6arr 0.2.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate m6arr 0.2.0 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 m6arr 0.2.0
[INFO] finished tweaking crates.io crate m6arr 0.2.0
[INFO] tweaked toml for crates.io crate m6arr 0.2.0 written to /workspace/builds/worker-14/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 8b9f52eea4ee477019cb80e081a9410c5330aec9a88932a3475fbaf9bf35b67b
[INFO] running `Command { std: "docker" "start" "-a" "8b9f52eea4ee477019cb80e081a9410c5330aec9a88932a3475fbaf9bf35b67b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b9f52eea4ee477019cb80e081a9410c5330aec9a88932a3475fbaf9bf35b67b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b9f52eea4ee477019cb80e081a9410c5330aec9a88932a3475fbaf9bf35b67b", kill_on_drop: false }`
[INFO] [stdout] 8b9f52eea4ee477019cb80e081a9410c5330aec9a88932a3475fbaf9bf35b67b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 3540f570f9d1079a624b3703fb074b9aeb67d366d00c3d7af9358514cd49543f
[INFO] running `Command { std: "docker" "start" "-a" "3540f570f9d1079a624b3703fb074b9aeb67d366d00c3d7af9358514cd49543f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Documenting m6arr v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "3540f570f9d1079a624b3703fb074b9aeb67d366d00c3d7af9358514cd49543f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3540f570f9d1079a624b3703fb074b9aeb67d366d00c3d7af9358514cd49543f", kill_on_drop: false }`
[INFO] [stdout] 3540f570f9d1079a624b3703fb074b9aeb67d366d00c3d7af9358514cd49543f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 6d6e3e6f1153273c659ef39f70e50d9352635634b7fc170778382d406f8497af
[INFO] running `Command { std: "docker" "start" "-a" "6d6e3e6f1153273c659ef39f70e50d9352635634b7fc170778382d406f8497af", kill_on_drop: false }`
[INFO] [stderr]  Documenting m6arr v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "6d6e3e6f1153273c659ef39f70e50d9352635634b7fc170778382d406f8497af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d6e3e6f1153273c659ef39f70e50d9352635634b7fc170778382d406f8497af", kill_on_drop: false }`
[INFO] [stdout] 6d6e3e6f1153273c659ef39f70e50d9352635634b7fc170778382d406f8497af