[INFO] fetching crate metrics-exporter-prometheus 0.6.1...
[INFO] testing metrics-exporter-prometheus-0.6.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate metrics-exporter-prometheus 0.6.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate metrics-exporter-prometheus 0.6.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metrics-exporter-prometheus 0.6.1
[INFO] finished tweaking crates.io crate metrics-exporter-prometheus 0.6.1
[INFO] tweaked toml for crates.io crate metrics-exporter-prometheus 0.6.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate metrics-exporter-prometheus 0.6.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4eb24df3af501491911d8f0134d362d952bc4f13e7d776b033e292452245be3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b4eb24df3af501491911d8f0134d362d952bc4f13e7d776b033e292452245be3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4eb24df3af501491911d8f0134d362d952bc4f13e7d776b033e292452245be3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4eb24df3af501491911d8f0134d362d952bc4f13e7d776b033e292452245be3", kill_on_drop: false }`
[INFO] [stdout] b4eb24df3af501491911d8f0134d362d952bc4f13e7d776b033e292452245be3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7d7e8f137b7577c5f7ff831b1e6cd6210f643f05e1ac15a5c44b32c1bd51d82
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d7d7e8f137b7577c5f7ff831b1e6cd6210f643f05e1ac15a5c44b32c1bd51d82", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling http v0.2.4
[INFO] [stderr]    Compiling socket2 v0.4.2
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling ordered-float v2.8.0
[INFO] [stderr]    Compiling metrics-util v0.10.1
[INFO] [stderr]    Compiling thiserror v1.0.29
[INFO] [stderr]    Compiling http-body v0.4.3
[INFO] [stderr]    Compiling hyper v0.14.12
[INFO] [stderr]    Compiling metrics-exporter-prometheus v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.17s
[INFO] running `Command { std: "docker" "inspect" "d7d7e8f137b7577c5f7ff831b1e6cd6210f643f05e1ac15a5c44b32c1bd51d82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7d7e8f137b7577c5f7ff831b1e6cd6210f643f05e1ac15a5c44b32c1bd51d82", kill_on_drop: false }`
[INFO] [stdout] d7d7e8f137b7577c5f7ff831b1e6cd6210f643f05e1ac15a5c44b32c1bd51d82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e5438da3ae1763aa4aca1095f9f23b516000e75328939a7c81a3ffb5cd1a2c3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8e5438da3ae1763aa4aca1095f9f23b516000e75328939a7c81a3ffb5cd1a2c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling tracing-serde v0.1.2
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling tracing-subscriber v0.2.22
[INFO] [stderr]    Compiling metrics-exporter-prometheus v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 25.50s
[INFO] running `Command { std: "docker" "inspect" "8e5438da3ae1763aa4aca1095f9f23b516000e75328939a7c81a3ffb5cd1a2c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e5438da3ae1763aa4aca1095f9f23b516000e75328939a7c81a3ffb5cd1a2c3", kill_on_drop: false }`
[INFO] [stdout] 8e5438da3ae1763aa4aca1095f9f23b516000e75328939a7c81a3ffb5cd1a2c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cda8fee17731ecaeb0cfdd6810c9b1bb821b70b921c02b56248922f0aedf1e56
[INFO] running `Command { std: "docker" "start" "-a" "cda8fee17731ecaeb0cfdd6810c9b1bb821b70b921c02b56248922f0aedf1e56", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/metrics_exporter_prometheus-c69b85a631ddaf7f)
[INFO] [stdout] running 6 tests
[INFO] [stdout] test builder::tests::test_global_labels_overrides ... ok
[INFO] [stdout] test common::tests::test_sanitize_key_name ... ok
[INFO] [stdout] test builder::tests::test_render ... ok
[INFO] [stdout] test builder::tests::test_global_labels ... ok
[INFO] [stdout] test builder::tests::test_idle_timeout ... ok
[INFO] [stdout] test builder::tests::test_buckets ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests metrics-exporter-prometheus
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cda8fee17731ecaeb0cfdd6810c9b1bb821b70b921c02b56248922f0aedf1e56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cda8fee17731ecaeb0cfdd6810c9b1bb821b70b921c02b56248922f0aedf1e56", kill_on_drop: false }`
[INFO] [stdout] cda8fee17731ecaeb0cfdd6810c9b1bb821b70b921c02b56248922f0aedf1e56