[INFO] fetching crate metrics 0.2.3...
[INFO] extracting crate metrics 0.2.3 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/metrics/0.2.3
[INFO] extracting crate metrics 0.2.3 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/metrics/0.2.3
[INFO] validating manifest of metrics-0.2.3 on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of metrics-0.2.3 on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing metrics-0.2.3
[INFO] finished frobbing metrics-0.2.3
[INFO] frobbed toml for metrics-0.2.3 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/metrics/0.2.3/Cargo.toml
[INFO] started frobbing metrics-0.2.3
[INFO] finished frobbing metrics-0.2.3
[INFO] frobbed toml for metrics-0.2.3 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/metrics/0.2.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prometheus_reporter v0.0.2
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing metrics-0.2.3 against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/metrics/0.2.3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] 52dbcd3ebb6481491395c07444e501a26f60c9c54000f28e1e2c02f1e9520162
[INFO] running `"docker" "start" "-a" "52dbcd3ebb6481491395c07444e501a26f60c9c54000f28e1e2c02f1e9520162"`
[INFO] [stderr]    Compiling histogram v0.6.9
[INFO] [stderr]    Compiling metrics v0.2.3 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/metrics/mod.rs:24:17
[INFO] [stderr]    |
[INFO] [stderr] 24 |     Counter(Arc<Counter>),
[INFO] [stderr]    |                 ^^^^^^^ help: use `dyn`: `dyn Counter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/metrics/mod.rs:25:15
[INFO] [stderr]    |
[INFO] [stderr] 25 |     Gauge(Arc<Gauge>),
[INFO] [stderr]    |               ^^^^^ help: use `dyn`: `dyn Gauge`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/metrics/mod.rs:26:15
[INFO] [stderr]    |
[INFO] [stderr] 26 |     Meter(Arc<Meter>),
[INFO] [stderr]    |               ^^^^^ help: use `dyn`: `dyn Meter`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.44s
[INFO] running `"docker" "inspect" "52dbcd3ebb6481491395c07444e501a26f60c9c54000f28e1e2c02f1e9520162"`
[INFO] running `"docker" "rm" "-f" "52dbcd3ebb6481491395c07444e501a26f60c9c54000f28e1e2c02f1e9520162"`
[INFO] [stdout] 52dbcd3ebb6481491395c07444e501a26f60c9c54000f28e1e2c02f1e9520162
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/metrics/0.2.3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 325a8e43902acc4ad41fa35a81ababfb7691992d9b719b95e3d5264bc183efac
[INFO] running `"docker" "start" "-a" "325a8e43902acc4ad41fa35a81ababfb7691992d9b719b95e3d5264bc183efac"`
[INFO] [stderr]    Compiling iron v0.5.1
[INFO] [stderr]    Compiling metrics v0.2.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `iron::prelude::*`
[INFO] [stderr]   --> examples/web_server_with_debug_port.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use iron::prelude::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `iron::status`
[INFO] [stderr]   --> examples/web_server_with_debug_port.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use iron::status;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Counter`, `Gauge`, `Meter`, `Metric`, `StdCounter`, `StdGauge`, `StdMeter`
[INFO] [stderr]   --> examples/web_server_with_debug_port.rs:16:24
[INFO] [stderr]    |
[INFO] [stderr] 16 | use metrics::metrics::{Counter, Gauge, Meter, Metric, StdCounter, StdGauge, StdMeter};
[INFO] [stderr]    |                        ^^^^^^^  ^^^^^  ^^^^^  ^^^^^^  ^^^^^^^^^^  ^^^^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]   --> examples/web_server_with_debug_port.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use std::collections::HashMap;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `histogram::Histogram`
[INFO] [stderr]   --> examples/web_server_with_debug_port.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use histogram::Histogram;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `metrics::reporter::Reporter`
[INFO] [stderr]   --> examples/web_server_with_debug_port.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use metrics::reporter::Reporter;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/metrics/mod.rs:24:17
[INFO] [stderr]    |
[INFO] [stderr] 24 |     Counter(Arc<Counter>),
[INFO] [stderr]    |                 ^^^^^^^ help: use `dyn`: `dyn Counter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/metrics/mod.rs:25:15
[INFO] [stderr]    |
[INFO] [stderr] 25 |     Gauge(Arc<Gauge>),
[INFO] [stderr]    |               ^^^^^ help: use `dyn`: `dyn Gauge`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/metrics/mod.rs:26:15
[INFO] [stderr]    |
[INFO] [stderr] 26 |     Meter(Arc<Meter>),
[INFO] [stderr]    |               ^^^^^ help: use `dyn`: `dyn Meter`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.40s
[INFO] running `"docker" "inspect" "325a8e43902acc4ad41fa35a81ababfb7691992d9b719b95e3d5264bc183efac"`
[INFO] running `"docker" "rm" "-f" "325a8e43902acc4ad41fa35a81ababfb7691992d9b719b95e3d5264bc183efac"`
[INFO] [stdout] 325a8e43902acc4ad41fa35a81ababfb7691992d9b719b95e3d5264bc183efac
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/metrics/0.2.3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen"`
[INFO] [stdout] 5f00f040fbf4c1d78f6e2174526f324af4901cedffe885cec41462ec6afad8ae
[INFO] running `"docker" "start" "-a" "5f00f040fbf4c1d78f6e2174526f324af4901cedffe885cec41462ec6afad8ae"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/metrics-28a06a3152f4d922
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test metrics::meter::test::zero ... ok
[INFO] [stdout] test metrics::meter::test::snapshot ... ok
[INFO] [stdout] test metrics::meter::test::non_zero ... ok
[INFO] [stdout] test metrics::meter::test::decay ... ok
[INFO] [stdout] test metrics::gauge::test::create_and_snapshot ... ok
[INFO] [stdout] test utils::ewma::test::ewma1 ... ok
[INFO] [stdout] test utils::ewma::test::ewma15 ... ok
[INFO] [stdout] test utils::ewma::test::ewma5 ... ok
[INFO] [stdout] test metrics::counter::test::validate_snapshots ... ok
[INFO] [stdout] name: meter labels: None
[INFO] [stdout] MeterSnapshot { count: 100, rates: [0.0, 0.0, 0.0], mean: 255080.56719714918 }
[INFO] [stdout] test metrics::counter::test::a_counting_counter ... ok
[INFO] [stdout] name: clone labels: None
[INFO] [stdout] CounterSnapshot { value: 1 }
[INFO] [stdout] name: gauge labels: None
[INFO] [stdout] GaugeSnapshot { value: 4 }
[INFO] [stdout] name: histo labels: None
[INFO] [stdout] histogram(1 total)
[INFO] [stdout] Remove metric histo
[INFO] [stdout] Stopping reporter because..:stop
[INFO] [stdout] test reporter::console::test::meter ... ok
[INFO] [stdout] test reporter::carbon::test::reporter ... ok
[INFO] [stderr]    Doc-tests metrics
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "5f00f040fbf4c1d78f6e2174526f324af4901cedffe885cec41462ec6afad8ae"`
[INFO] running `"docker" "rm" "-f" "5f00f040fbf4c1d78f6e2174526f324af4901cedffe885cec41462ec6afad8ae"`
[INFO] [stdout] 5f00f040fbf4c1d78f6e2174526f324af4901cedffe885cec41462ec6afad8ae