[INFO] fetching crate metrix 0.13.8...
[INFO] testing metrix-0.13.8 against 1.44.0 for beta-1.45-1
[INFO] extracting crate metrix 0.13.8 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate metrix 0.13.8 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate metrix 0.13.8
[INFO] finished tweaking crates.io crate metrix 0.13.8
[INFO] tweaked toml for crates.io crate metrix 0.13.8 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate metrix 0.13.8 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 42187d3dd943247a0b30b77629dea4747c7fff80f415fd9f80d172224f7e6bf2
[INFO] running `"docker" "start" "-a" "42187d3dd943247a0b30b77629dea4747c7fff80f415fd9f80d172224f7e6bf2"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling ordered-float v1.0.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling exponential-decay-histogram v0.1.5
[INFO] [stderr]    Compiling metrix v0.13.8 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Arc`
[INFO] [stderr]   --> src/instruments/fundamentals/metrics_meter.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Arc,
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_at_mut`
[INFO] [stderr]   --> src/instruments/fundamentals/buckets.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn get_at_mut(&mut self, for_when: Instant) -> Option<&mut T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.46s
[INFO] running `"docker" "inspect" "42187d3dd943247a0b30b77629dea4747c7fff80f415fd9f80d172224f7e6bf2"`
[INFO] running `"docker" "rm" "-f" "42187d3dd943247a0b30b77629dea4747c7fff80f415fd9f80d172224f7e6bf2"`
[INFO] [stdout] 42187d3dd943247a0b30b77629dea4747c7fff80f415fd9f80d172224f7e6bf2
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2b5c2e1c914a8176cb8d229bc0778f1683dffab27a12a63919b90bc6899b19d9
[INFO] running `"docker" "start" "-a" "2b5c2e1c914a8176cb8d229bc0778f1683dffab27a12a63919b90bc6899b19d9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused import: `Arc`
[INFO] [stderr]   --> src/instruments/fundamentals/metrics_meter.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Arc,
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_at_mut`
[INFO] [stderr]   --> src/instruments/fundamentals/buckets.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn get_at_mut(&mut self, for_when: Instant) -> Option<&mut T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling metrix v0.13.8 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `offset`
[INFO] [stderr]   --> src/instruments/fundamentals/clock.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |         pub fn offset(&self) -> Duration {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reference`
[INFO] [stderr]   --> src/instruments/fundamentals/clock.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |         pub fn reference(&self) -> Instant {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_offset`
[INFO] [stderr]   --> src/instruments/fundamentals/clock.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |         pub fn set_offset(&self, offset: Duration) {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reset`
[INFO] [stderr]   --> src/instruments/fundamentals/clock.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |         pub fn reset(&self) {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.22s
[INFO] running `"docker" "inspect" "2b5c2e1c914a8176cb8d229bc0778f1683dffab27a12a63919b90bc6899b19d9"`
[INFO] running `"docker" "rm" "-f" "2b5c2e1c914a8176cb8d229bc0778f1683dffab27a12a63919b90bc6899b19d9"`
[INFO] [stdout] 2b5c2e1c914a8176cb8d229bc0778f1683dffab27a12a63919b90bc6899b19d9
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b8548a00aa69ec34d7f1099cef6ca234603c83e60e2dc48a8a3587174008cf1d
[INFO] running `"docker" "start" "-a" "b8548a00aa69ec34d7f1099cef6ca234603c83e60e2dc48a8a3587174008cf1d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused import: `Arc`
[INFO] [stderr]   --> src/instruments/fundamentals/metrics_meter.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Arc,
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_at_mut`
[INFO] [stderr]   --> src/instruments/fundamentals/buckets.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn get_at_mut(&mut self, for_when: Instant) -> Option<&mut T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `offset`
[INFO] [stderr]   --> src/instruments/fundamentals/clock.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |         pub fn offset(&self) -> Duration {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reference`
[INFO] [stderr]   --> src/instruments/fundamentals/clock.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |         pub fn reference(&self) -> Instant {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_offset`
[INFO] [stderr]   --> src/instruments/fundamentals/clock.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |         pub fn set_offset(&self, offset: Duration) {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reset`
[INFO] [stderr]   --> src/instruments/fundamentals/clock.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |         pub fn reset(&self) {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/metrix-6a521d0f25758ba6
[INFO] [stdout] 
[INFO] [stdout] running 73 tests
[INFO] [stdout] test instruments::counter::test::updates ... ok
[INFO] [stdout] test instruments::fundamentals::buckets::test::empty_by_over_tick_2 ... ok
[INFO] [stdout] test instruments::fundamentals::buckets::test::buckets_with_one_item_works_without_ticks ... ok
[INFO] [stdout] test instruments::fundamentals::buckets::test::empty_by_over_tick_1 ... ok
[INFO] [stdout] test instruments::fundamentals::buckets::test::non_equidistant_advance ... ok
[INFO] [stdout] test instruments::fundamentals::buckets::test::shift_by_double_tick ... ok
[INFO] [stdout] test instruments::fundamentals::buckets::test::initial_buckets ... ok
[INFO] [stdout] test instruments::fundamentals::buckets::test::shift_by_tick ... ok
[INFO] [stdout] test instruments::fundamentals::buckets::test::with_three_initialized_items ... ok
[INFO] [stdout] test instruments::fundamentals::buckets::test::with_three_initialized_items_tick_one_second ... ok
[INFO] [stdout] test instruments::fundamentals::buckets::test::with_three_uninitialized_items_tick_one_second ... ok
[INFO] [stdout] test instruments::fundamentals::metrics_meter::test::decay ... ok
[INFO] [stdout] test instruments::fundamentals::metrics_meter::test::non_zero ... ok
[INFO] [stdout] test instruments::fundamentals::metrics_meter::test_ewma::ewma15 ... ok
[INFO] [stdout] test instruments::fundamentals::metrics_meter::test_ewma::ewma5 ... ok
[INFO] [stdout] test instruments::fundamentals::metrics_meter::test::snapshot ... ok
[INFO] [stdout] test instruments::fundamentals::buckets::test::shift_by_half_ticks ... ok
[INFO] [stdout] test instruments::gauge::test::empty_gauge_updates_by_decrement ... ok
[INFO] [stdout] test instruments::gauge::test::empty_gauge_updates_by_decrement_by ... ok
[INFO] [stdout] test instruments::gauge::test::empty_gauge_updates_by_increment ... ok
[INFO] [stdout] test instruments::gauge::test::empty_gauge_updates_with_duration ... ok
[INFO] [stdout] test instruments::gauge::test::fresh_node_is_empty ... ok
[INFO] [stdout] test instruments::gauge::test::gauge_for_label_deltas_only ... ok
[INFO] [stdout] test instruments::gauge::test::gauge_for_label_label_exists ... ok
[INFO] [stdout] test instruments::gauge::test::gauge_for_label_label_does_not_exist ... ok
[INFO] [stdout] test instruments::gauge::test::empty_gauge_updates_by_increment_by ... ok
[INFO] [stdout] test instruments::fundamentals::metrics_meter::test_ewma::ewma1 ... ok
[INFO] [stdout] test instruments::gauge::test::empty_gauge_updates_with_value ... ok
[INFO] [stdout] test instruments::fundamentals::metrics_meter::test::zero ... ok
[INFO] [stdout] test instruments::gauge::test::gauge_inc_dec_on_many ... ok
[INFO] [stdout] test instruments::gauge::test::non_empty_gauge_updates_by_decrement ... ok
[INFO] [stdout] test instruments::gauge::test::gauge_for_labels ... ok
[INFO] [stdout] test instruments::gauge::test::gauge_inc_dec_on ... ok
[INFO] [stdout] test instruments::gauge::test::non_empty_gauge_updates_with_duration ... ok
[INFO] [stdout] test instruments::gauge::tracking::test::one_bucket_works_correctly_with_2_times_a_different_update_and_one_bucket_shift ... ok
[INFO] [stdout] test instruments::gauge::tracking::test::one_bucket_works_correctly_with_2_times_the_same_updates_and_one_bucket_shift ... ok
[INFO] [stdout] test instruments::gauge::tracking::test::one_bucket_works_correctly_with_two_different_updates_in_the_same_bucket ... ok
[INFO] [stdout] test instruments::gauge::tracking::test::two_buckets_works_correctly_with_2_times_the_same_updates_and_one_bucket_shift ... ok
[INFO] [stdout] test instruments::gauge::test::non_empty_gauge_updates_by_decrement_by ... ok
[INFO] [stdout] test instruments::gauge::test::non_empty_gauge_updates_by_increment ... ok
[INFO] [stdout] test instruments::label_filter::test_label_filter::accept_all_filter ... ok
[INFO] [stdout] test instruments::label_filter::test_label_filter::accept_four_filter ... ok
[INFO] [stdout] test instruments::label_filter::test_label_filter::accept_many_filter ... ok
[INFO] [stdout] test instruments::label_filter::test_label_filter::accept_three_filter ... ok
[INFO] [stdout] test instruments::label_filter::test_label_filter::accept_two_filter ... ok
[INFO] [stdout] test instruments::gauge::tracking::test::empty_bucket_returns_none ... ok
[INFO] [stdout] test instruments::label_filter::test_label_filter::accept_five_filter ... ok
[INFO] [stdout] test instruments::gauge::tracking::test::none_empty_bucket_returns_some ... ok
[INFO] [stdout] test instruments::gauge::tracking::test::one_bucket_works_correctly_with_one_update ... ok
[INFO] [stdout] test instruments::histogram::histogram_without_inactivity_accepts_future_timestamp ... ok
[INFO] [stdout] test instruments::label_filter::test_label_filter::many_filters ... ok
[INFO] [stdout] test instruments::histogram::histogram_with_inactivity_accepts_future_timestamp ... ok
[INFO] [stdout] test instruments::gauge::test::non_empty_gauge_updates_with_value ... ok
[INFO] [stdout] test instruments::gauge::tracking::test::two_buckets_works_correctly_with_different_updates_and_one_bucket_shift ... ok
[INFO] [stdout] test instruments::label_filter::test_label_filter_internal::accept_all_filter ... ok
[INFO] [stdout] test instruments::label_filter::test_label_filter::empty_filter ... ok
[INFO] [stdout] test instruments::label_filter::test_label_filter_internal::accept_four_filter ... ok
[INFO] [stdout] test instruments::gauge::test::gauge_for_all_labels ... ok
[INFO] [stdout] test instruments::test_time_conversion::duration_to_display_value_from_millis ... ok
[INFO] [stdout] test instruments::gauge::test::non_empty_gauge_updates_by_increment_by ... ok
[INFO] [stdout] test instruments::gauge::tracking::test::two_buckets_works_correctly_2_different_updates_in_each_bucket_with_one_bucket_shift ... ok
[INFO] [stdout] test instruments::label_filter::test_label_filter::accept_one_filter ... ok
[INFO] [stdout] test instruments::label_filter::test_label_filter_internal::accept_one_filter ... ok
[INFO] [stdout] test instruments::label_filter::test_label_filter_internal::accept_many_filter ... ok
[INFO] [stdout] test instruments::label_filter::test_label_filter_internal::accept_two_filter ... ok
[INFO] [stdout] test instruments::test_time_conversion::duration_to_display_value_from_seconds ... ok
[INFO] [stdout] test instruments::test_time_conversion::duration_to_display_value_from_nanos ... ok
[INFO] [stdout] test processor::the_telemetry_transmitter_is_sync ... ok
[INFO] [stdout] test instruments::label_filter::test_label_filter_internal::empty_filter ... ok
[INFO] [stdout] test instruments::label_filter::test_label_filter_internal::accept_five_filter ... ok
[INFO] [stdout] test instruments::label_filter::test_label_filter_internal::many_filters ... ok
[INFO] [stdout] test instruments::test_time_conversion::duration_to_display_value_from_micros ... ok
[INFO] [stdout] test instruments::label_filter::test_label_filter_internal::accept_three_filter ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 73 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests metrix
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/instruments/gauge/mod.rs - instruments::gauge::Gauge (line 38) ... ok
[INFO] [stdout] test src/instruments/counter.rs - instruments::counter::Counter (line 18) ... ok
[INFO] [stdout] test src/instruments/gauge/mod.rs - instruments::gauge::Gauge (line 26) ... ok
[INFO] [stdout] test src/snapshot.rs - snapshot::Snapshot::find (line 63) ... ok
[INFO] [stdout] test src/snapshot.rs - snapshot::find_item (line 145) ... ok
[INFO] [stdout] test src/instruments/panel.rs - instruments::panel::Panel (line 21) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b8548a00aa69ec34d7f1099cef6ca234603c83e60e2dc48a8a3587174008cf1d"`
[INFO] running `"docker" "rm" "-f" "b8548a00aa69ec34d7f1099cef6ca234603c83e60e2dc48a8a3587174008cf1d"`
[INFO] [stdout] b8548a00aa69ec34d7f1099cef6ca234603c83e60e2dc48a8a3587174008cf1d