[INFO] fetching crate metrics-process-promstyle 0.18.0...
[INFO] documenting metrics-process-promstyle-0.18.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate metrics-process-promstyle 0.18.0 into /workspace/builds/worker-35/source
[INFO] validating manifest of crates.io crate metrics-process-promstyle 0.18.0 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 metrics-process-promstyle 0.18.0
[INFO] finished tweaking crates.io crate metrics-process-promstyle 0.18.0
[INFO] tweaked toml for crates.io crate metrics-process-promstyle 0.18.0 written to /workspace/builds/worker-35/source/Cargo.toml
[INFO] crate crates.io crate metrics-process-promstyle 0.18.0 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] [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-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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] 715231cde94819b2af436fd6762faa3343f9995d615fee918ee18112fe23f418
[INFO] running `Command { std: "docker" "start" "-a" "715231cde94819b2af436fd6762faa3343f9995d615fee918ee18112fe23f418", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "715231cde94819b2af436fd6762faa3343f9995d615fee918ee18112fe23f418", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "715231cde94819b2af436fd6762faa3343f9995d615fee918ee18112fe23f418", kill_on_drop: false }`
[INFO] [stdout] 715231cde94819b2af436fd6762faa3343f9995d615fee918ee18112fe23f418
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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] afcb15a9c7f6bb0396efd30d1dd32e063ae91b623ef5d6f0f2af2ead72a8b2ef
[INFO] running `Command { std: "docker" "start" "-a" "afcb15a9c7f6bb0396efd30d1dd32e063ae91b623ef5d6f0f2af2ead72a8b2ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling metrics v0.18.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling quote v1.0.16
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking procfs v0.12.0
[INFO] [stderr]    Compiling metrics-macros v0.5.1
[INFO] [stderr]  Documenting metrics-process-promstyle v0.18.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.72s
[INFO] running `Command { std: "docker" "inspect" "afcb15a9c7f6bb0396efd30d1dd32e063ae91b623ef5d6f0f2af2ead72a8b2ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afcb15a9c7f6bb0396efd30d1dd32e063ae91b623ef5d6f0f2af2ead72a8b2ef", kill_on_drop: false }`
[INFO] [stdout] afcb15a9c7f6bb0396efd30d1dd32e063ae91b623ef5d6f0f2af2ead72a8b2ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=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] 83c5d698adc1a4314ba42cd2445af8306933554aa8f7df1e55cfb7ecedbd120e
[INFO] running `Command { std: "docker" "start" "-a" "83c5d698adc1a4314ba42cd2445af8306933554aa8f7df1e55cfb7ecedbd120e", 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling metrics v0.18.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling quote v1.0.16
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking procfs v0.12.0
[INFO] [stderr]    Compiling metrics-macros v0.5.1
[INFO] [stderr]  Documenting metrics-process-promstyle v0.18.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.81s
[INFO] running `Command { std: "docker" "inspect" "83c5d698adc1a4314ba42cd2445af8306933554aa8f7df1e55cfb7ecedbd120e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83c5d698adc1a4314ba42cd2445af8306933554aa8f7df1e55cfb7ecedbd120e", kill_on_drop: false }`
[INFO] [stdout] 83c5d698adc1a4314ba42cd2445af8306933554aa8f7df1e55cfb7ecedbd120e