[INFO] fetching crate metrics-exporter-prometheus 0.9.0...
[INFO] documenting metrics-exporter-prometheus-0.9.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate metrics-exporter-prometheus 0.9.0 into /workspace/builds/worker-27/source
[INFO] validating manifest of crates.io crate metrics-exporter-prometheus 0.9.0 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metrics-exporter-prometheus 0.9.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate metrics-exporter-prometheus 0.9.0
[INFO] tweaked toml for crates.io crate metrics-exporter-prometheus 0.9.0 written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate crates.io crate metrics-exporter-prometheus 0.9.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.7
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.7
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9624c1fffcd6331125df19040bdf9c42be6e8da6ff286811e1ec2d2bfce7bc8b
[INFO] running `Command { std: "docker" "start" "-a" "9624c1fffcd6331125df19040bdf9c42be6e8da6ff286811e1ec2d2bfce7bc8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9624c1fffcd6331125df19040bdf9c42be6e8da6ff286811e1ec2d2bfce7bc8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9624c1fffcd6331125df19040bdf9c42be6e8da6ff286811e1ec2d2bfce7bc8b", kill_on_drop: false }`
[INFO] [stdout] 9624c1fffcd6331125df19040bdf9c42be6e8da6ff286811e1ec2d2bfce7bc8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb1781bcba8cae599034f7ba6e70f6d3f2fec05bfeacc91f82d035ff4e9f809c
[INFO] running `Command { std: "docker" "start" "-a" "fb1781bcba8cae599034f7ba6e70f6d3f2fec05bfeacc91f82d035ff4e9f809c", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling metrics v0.18.1
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling httparse v1.6.0
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.7
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking sketches-ddsketch v0.1.2
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking atomic-shim v0.2.0
[INFO] [stderr]     Checking ipnet v2.4.0
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking raw-cpuid v10.2.0
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]     Checking tracing-core v0.1.23
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking mio v0.8.0
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking quanta v0.9.3
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]    Compiling metrics-macros v0.5.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.20
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking metrics-util v0.12.0
[INFO] [stderr]     Checking tracing v0.1.32
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking hyper v0.14.17
[INFO] [stderr]  Documenting metrics-exporter-prometheus v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.66s
[INFO] running `Command { std: "docker" "inspect" "fb1781bcba8cae599034f7ba6e70f6d3f2fec05bfeacc91f82d035ff4e9f809c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb1781bcba8cae599034f7ba6e70f6d3f2fec05bfeacc91f82d035ff4e9f809c", kill_on_drop: false }`
[INFO] [stdout] fb1781bcba8cae599034f7ba6e70f6d3f2fec05bfeacc91f82d035ff4e9f809c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--all-features" "--frozen" "--message-format=json" "--" "--cfg" "docsrs" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 87ba64e2ac7c3693988a3467ea08c1ede1fdb44e851e2d27f22390221852e4f3
[INFO] running `Command { std: "docker" "start" "-a" "87ba64e2ac7c3693988a3467ea08c1ede1fdb44e851e2d27f22390221852e4f3", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling metrics v0.18.1
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.7
[INFO] [stderr]    Compiling httparse v1.6.0
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking atomic-shim v0.2.0
[INFO] [stderr]     Checking sketches-ddsketch v0.1.2
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking ipnet v2.4.0
[INFO] [stderr]     Checking raw-cpuid v10.2.0
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]     Checking tracing-core v0.1.23
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking mio v0.8.0
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking quanta v0.9.3
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling metrics-macros v0.5.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.20
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking metrics-util v0.12.0
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking tracing v0.1.32
[INFO] [stderr]     Checking hyper v0.14.17
[INFO] [stderr]  Documenting metrics-exporter-prometheus v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.05s
[INFO] running `Command { std: "docker" "inspect" "87ba64e2ac7c3693988a3467ea08c1ede1fdb44e851e2d27f22390221852e4f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87ba64e2ac7c3693988a3467ea08c1ede1fdb44e851e2d27f22390221852e4f3", kill_on_drop: false }`
[INFO] [stdout] 87ba64e2ac7c3693988a3467ea08c1ede1fdb44e851e2d27f22390221852e4f3