[INFO] fetching crate metrics-exporter-prometheus 0.9.0...
[INFO] testing metrics-exporter-prometheus-0.9.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate metrics-exporter-prometheus 0.9.0 into /workspace/builds/worker-17/source
[INFO] validating manifest of crates.io crate metrics-exporter-prometheus 0.9.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-17/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" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d42402c831ced4b4f73c40f68c2208f00115991e7bfa36e83006578da06c5e6b
[INFO] running `Command { std: "docker" "start" "-a" "d42402c831ced4b4f73c40f68c2208f00115991e7bfa36e83006578da06c5e6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d42402c831ced4b4f73c40f68c2208f00115991e7bfa36e83006578da06c5e6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d42402c831ced4b4f73c40f68c2208f00115991e7bfa36e83006578da06c5e6b", kill_on_drop: false }`
[INFO] [stdout] d42402c831ced4b4f73c40f68c2208f00115991e7bfa36e83006578da06c5e6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d80b140b90736b2c4f6307b0df1c34fa8d40cb5ed1d8c05a29850aa33992b57
[INFO] running `Command { std: "docker" "start" "-a" "4d80b140b90736b2c4f6307b0df1c34fa8d40cb5ed1d8c05a29850aa33992b57", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.7
[INFO] [stderr]    Compiling metrics v0.18.1
[INFO] [stderr]    Compiling httparse v1.6.0
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling atomic-shim v0.2.0
[INFO] [stderr]    Compiling sketches-ddsketch v0.1.2
[INFO] [stderr]    Compiling ipnet v2.4.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling raw-cpuid v10.2.0
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling tracing-core v0.1.23
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling mio v0.8.0
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling quanta v0.9.3
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling hashbrown v0.11.2
[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]    Compiling metrics-util v0.12.0
[INFO] [stderr]    Compiling tracing v0.1.32
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling hyper v0.14.17
[INFO] [stderr]    Compiling metrics-exporter-prometheus v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.68s
[INFO] running `Command { std: "docker" "inspect" "4d80b140b90736b2c4f6307b0df1c34fa8d40cb5ed1d8c05a29850aa33992b57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d80b140b90736b2c4f6307b0df1c34fa8d40cb5ed1d8c05a29850aa33992b57", kill_on_drop: false }`
[INFO] [stdout] 4d80b140b90736b2c4f6307b0df1c34fa8d40cb5ed1d8c05a29850aa33992b57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d9107ca1007fd9fe81dc02006c0e2d4b03e3d217caca7a395a49dc8cca1db9b
[INFO] running `Command { std: "docker" "start" "-a" "1d9107ca1007fd9fe81dc02006c0e2d4b03e3d217caca7a395a49dc8cca1db9b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling quick-error v2.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling thread_local v1.1.4
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_xorshift v0.3.0
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling rusty-fork v0.3.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling tracing-subscriber v0.3.9
[INFO] [stderr]    Compiling proptest v1.0.0
[INFO] [stderr]    Compiling metrics-exporter-prometheus v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.38s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/metrics_exporter_prometheus-ee772c7cbb4043b4)
[INFO] running `Command { std: "docker" "inspect" "1d9107ca1007fd9fe81dc02006c0e2d4b03e3d217caca7a395a49dc8cca1db9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d9107ca1007fd9fe81dc02006c0e2d4b03e3d217caca7a395a49dc8cca1db9b", kill_on_drop: false }`
[INFO] [stdout] 1d9107ca1007fd9fe81dc02006c0e2d4b03e3d217caca7a395a49dc8cca1db9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f1f2d36c95ac57f25197d4b73a122eebff643c7ef99e2c332bd13bd1e95bd3a5
[INFO] running `Command { std: "docker" "start" "-a" "f1f2d36c95ac57f25197d4b73a122eebff643c7ef99e2c332bd13bd1e95bd3a5", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/metrics_exporter_prometheus-ee772c7cbb4043b4)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test formatting::tests::test_sanitize_description_known_cases ... ok
[INFO] [stdout] test builder::tests::test_idle_timeout_catches_delayed_idle ... ok
[INFO] [stdout] test builder::tests::test_global_labels ... ok
[INFO] [stdout] test builder::tests::test_idle_timeout_doesnt_remove_recents ... ok
[INFO] [stdout] test builder::tests::test_sanitized_render ... ok
[INFO] [stdout] test builder::tests::test_global_labels_overrides ... ok
[INFO] [stdout] test builder::tests::test_idle_timeout_partial ... ok
[INFO] [stdout] test formatting::tests::test_sanitize_label_value_known_cases ... ok
[INFO] [stdout] test formatting::tests::test_sanitize_label_key_known_cases ... ok
[INFO] [stdout] test builder::tests::test_idle_timeout_all ... ok
[INFO] [stdout] test builder::tests::test_buckets ... ok
[INFO] [stdout] test formatting::tests::test_sanitize_metric_name_known_cases ... ok
[INFO] [stdout] test builder::tests::test_render ... ok
[INFO] [stdout] test builder::tests::test_idle_timeout_staggered_distributions ... ok
[INFO] [stdout] test formatting::tests::test_sanitize_metric_name ... ok
[INFO] [stdout] test formatting::tests::test_sanitize_label_value ... ok
[INFO] [stdout] test formatting::tests::test_sanitize_label_key ... ok
[INFO] [stdout] test formatting::tests::test_sanitize_description ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests metrics-exporter-prometheus
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 46) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f1f2d36c95ac57f25197d4b73a122eebff643c7ef99e2c332bd13bd1e95bd3a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1f2d36c95ac57f25197d4b73a122eebff643c7ef99e2c332bd13bd1e95bd3a5", kill_on_drop: false }`
[INFO] [stdout] f1f2d36c95ac57f25197d4b73a122eebff643c7ef99e2c332bd13bd1e95bd3a5