[INFO] crate metrics-observer-prometheus 0.1.1 is already in cache
[INFO] testing metrics-observer-prometheus-0.1.1 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate metrics-observer-prometheus 0.1.1 into work/builds/worker-1/source
[INFO] validating manifest of crates.io crate metrics-observer-prometheus 0.1.1 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate metrics-observer-prometheus 0.1.1
[INFO] finished tweaking crates.io crate metrics-observer-prometheus 0.1.1
[INFO] tweaked toml for crates.io crate metrics-observer-prometheus 0.1.1 written to work/builds/worker-1/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] c47e4d0725ce589d8e80bdc07e2d512f8303c0b88a615a3359520945eea3ccfd
[INFO] running `"docker" "start" "-a" "c47e4d0725ce589d8e80bdc07e2d512f8303c0b88a615a3359520945eea3ccfd"`
[INFO] [stderr]    Compiling metrics-core v0.5.1
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling hdrhistogram v6.3.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling metrics-util v0.3.0
[INFO] [stderr]    Compiling metrics-observer-prometheus v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `"docker" "inspect" "c47e4d0725ce589d8e80bdc07e2d512f8303c0b88a615a3359520945eea3ccfd"`
[INFO] running `"docker" "rm" "-f" "c47e4d0725ce589d8e80bdc07e2d512f8303c0b88a615a3359520945eea3ccfd"`
[INFO] [stdout] c47e4d0725ce589d8e80bdc07e2d512f8303c0b88a615a3359520945eea3ccfd
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9a286b356c4087c8fd2893592e1de85912bdfcb0bd846d64c432ad1cc7edd2e0
[INFO] running `"docker" "start" "-a" "9a286b356c4087c8fd2893592e1de85912bdfcb0bd846d64c432ad1cc7edd2e0"`
[INFO] [stderr]    Compiling metrics-observer-prometheus v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `"docker" "inspect" "9a286b356c4087c8fd2893592e1de85912bdfcb0bd846d64c432ad1cc7edd2e0"`
[INFO] running `"docker" "rm" "-f" "9a286b356c4087c8fd2893592e1de85912bdfcb0bd846d64c432ad1cc7edd2e0"`
[INFO] [stdout] 9a286b356c4087c8fd2893592e1de85912bdfcb0bd846d64c432ad1cc7edd2e0
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 20b0b71b56eceeaad66764dbe28de30b1a622e919379f4064dae29c321d3a46b
[INFO] running `"docker" "start" "-a" "20b0b71b56eceeaad66764dbe28de30b1a622e919379f4064dae29c321d3a46b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/metrics_observer_prometheus-2c22b1a0676deaad
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests metrics-observer-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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "20b0b71b56eceeaad66764dbe28de30b1a622e919379f4064dae29c321d3a46b"`
[INFO] running `"docker" "rm" "-f" "20b0b71b56eceeaad66764dbe28de30b1a622e919379f4064dae29c321d3a46b"`
[INFO] [stdout] 20b0b71b56eceeaad66764dbe28de30b1a622e919379f4064dae29c321d3a46b