[INFO] fetching crate metrics-exporter-prometheus 0.9.0...
[INFO] checking metrics-exporter-prometheus-0.9.0 against master#43d9f3859e0204e764161ee085a360274b5f3e9a for pr-97346
[INFO] extracting crate metrics-exporter-prometheus 0.9.0 into /workspace/builds/worker-32/source
[INFO] validating manifest of crates.io crate metrics-exporter-prometheus 0.9.0 on toolchain 43d9f3859e0204e764161ee085a360274b5f3e9a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+43d9f3859e0204e764161ee085a360274b5f3e9a" "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-32/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" "+43d9f3859e0204e764161ee085a360274b5f3e9a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+43d9f3859e0204e764161ee085a360274b5f3e9a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7954dd5df511b987de720ffb6aa9027e455f10ff8bdad724322d85d2e83af55d
[INFO] running `Command { std: "docker" "start" "-a" "7954dd5df511b987de720ffb6aa9027e455f10ff8bdad724322d85d2e83af55d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7954dd5df511b987de720ffb6aa9027e455f10ff8bdad724322d85d2e83af55d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7954dd5df511b987de720ffb6aa9027e455f10ff8bdad724322d85d2e83af55d", kill_on_drop: false }`
[INFO] [stdout] 7954dd5df511b987de720ffb6aa9027e455f10ff8bdad724322d85d2e83af55d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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=forbid" "-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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+43d9f3859e0204e764161ee085a360274b5f3e9a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd4a3331056926b3e134fefa830cc85b38886a0eac68f419e96c9ec78c089bf9
[INFO] running `Command { std: "docker" "start" "-a" "dd4a3331056926b3e134fefa830cc85b38886a0eac68f419e96c9ec78c089bf9", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling metrics v0.18.1
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.7
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling httparse v1.6.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking remove_dir_all v0.5.3
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[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking atomic-shim v0.2.0
[INFO] [stderr]     Checking tower-service v0.3.1
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[INFO] [stderr]     Checking ansi_term v0.12.1
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[INFO] [stderr]     Checking quick-error v2.0.1
[INFO] [stderr]     Checking ipnet v2.4.0
[INFO] [stderr]     Checking tracing-core v0.1.23
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking raw-cpuid v10.2.0
[INFO] [stderr]     Checking instant v0.1.12
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[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling num-traits v0.2.14
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[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking rusty-fork v0.3.0
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[INFO] [stderr]     Checking mio v0.8.0
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[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.9
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]     Checking proptest v1.0.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.20
[INFO] [stderr]    Compiling metrics-macros v0.5.1
[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]     Checking metrics-exporter-prometheus v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.87s
[INFO] running `Command { std: "docker" "inspect" "dd4a3331056926b3e134fefa830cc85b38886a0eac68f419e96c9ec78c089bf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd4a3331056926b3e134fefa830cc85b38886a0eac68f419e96c9ec78c089bf9", kill_on_drop: false }`
[INFO] [stdout] dd4a3331056926b3e134fefa830cc85b38886a0eac68f419e96c9ec78c089bf9