[INFO] fetching crate fastmetrics 0.4.1...
[INFO] testing fastmetrics-0.4.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate fastmetrics 0.4.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate fastmetrics 0.4.1
[INFO] finished tweaking crates.io crate fastmetrics 0.4.1
[INFO] tweaked toml for crates.io crate fastmetrics 0.4.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fastmetrics 0.4.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fastmetrics 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prost-build v0.14.1
[INFO] [stderr]   Downloaded prost-derive v0.14.1
[INFO] [stderr]   Downloaded prost v0.14.1
[INFO] [stderr]   Downloaded fastmetrics-derive v0.4.0
[INFO] [stderr]   Downloaded prost-types v0.14.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c7eedd6dba995e5323709e873e7c4062ea8f7f255490828c77629f099cfa2f6
[INFO] running `Command { std: "docker" "start" "-a" "3c7eedd6dba995e5323709e873e7c4062ea8f7f255490828c77629f099cfa2f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c7eedd6dba995e5323709e873e7c4062ea8f7f255490828c77629f099cfa2f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c7eedd6dba995e5323709e873e7c4062ea8f7f255490828c77629f099cfa2f6", kill_on_drop: false }`
[INFO] [stdout] 3c7eedd6dba995e5323709e873e7c4062ea8f7f255490828c77629f099cfa2f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1be12c625fe7387763485c607683130129499a5d4529700d237fd519681beca2
[INFO] running `Command { std: "docker" "start" "-a" "1be12c625fe7387763485c607683130129499a5d4529700d237fd519681beca2", kill_on_drop: false }`
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling fastmetrics v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling dtoa v1.0.10
[INFO] [stderr]    Compiling foldhash v0.2.0
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.61s
[INFO] running `Command { std: "docker" "inspect" "1be12c625fe7387763485c607683130129499a5d4529700d237fd519681beca2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1be12c625fe7387763485c607683130129499a5d4529700d237fd519681beca2", kill_on_drop: false }`
[INFO] [stdout] 1be12c625fe7387763485c607683130129499a5d4529700d237fd519681beca2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfaa687bf319867d16ac8f9765e23853c2cf2c565f67e6467e3f0796e7b8cabc
[INFO] running `Command { std: "docker" "start" "-a" "cfaa687bf319867d16ac8f9765e23853c2cf2c565f67e6467e3f0796e7b8cabc", kill_on_drop: false }`
[INFO] [stderr]    Compiling fastmetrics v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.43s
[INFO] running `Command { std: "docker" "inspect" "cfaa687bf319867d16ac8f9765e23853c2cf2c565f67e6467e3f0796e7b8cabc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfaa687bf319867d16ac8f9765e23853c2cf2c565f67e6467e3f0796e7b8cabc", kill_on_drop: false }`
[INFO] [stdout] cfaa687bf319867d16ac8f9765e23853c2cf2c565f67e6467e3f0796e7b8cabc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c30fd127bbd7b820451f5c29e8e0403ab60b660ca9301a41ca5ec2c1f321d98c
[INFO] running `Command { std: "docker" "start" "-a" "c30fd127bbd7b820451f5c29e8e0403ab60b660ca9301a41ca5ec2c1f321d98c", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fastmetrics-127f2f6c2254b22f)
[INFO] [stdout] 
[INFO] [stdout] running 50 tests
[INFO] [stdout] test metrics::family::tests::test_empty_metric_family ... ok
[INFO] [stdout] test metrics::family::tests::test_metric_family ... ok
[INFO] [stdout] test metrics::types::counter::tests::test_counter_inc ... ok
[INFO] [stdout] test metrics::types::counter::tests::test_counter_inc_by ... ok
[INFO] [stdout] test metrics::types::counter::tests::test_counter_initialization ... ok
[INFO] [stdout] test metrics::types::counter::tests::test_counter_set ... ok
[INFO] [stdout] test metrics::types::gauge::tests::test_gauge_inc_dec ... ok
[INFO] [stdout] test metrics::types::counter::tests::test_text_encoding ... ok
[INFO] [stdout] test metrics::types::gauge::tests::test_gauge_initialization ... ok
[INFO] [stdout] test metrics::types::gauge::tests::test_gauge_inc_dec_by ... ok
[INFO] [stdout] test metrics::types::gauge::tests::test_gauge_set ... ok
[INFO] [stdout] test metrics::types::counter::tests::test_counter_thread_safe ... ok
[INFO] [stdout] test metrics::types::gauge_histogram::tests::test_gauge_histogram_observe ... ok
[INFO] [stdout] test metrics::types::gauge::tests::test_text_encoding ... ok
[INFO] [stdout] test metrics::types::gauge_histogram::tests::test_gauge_histogram_initialization ... ok
[INFO] [stdout] test metrics::types::gauge_histogram::tests::test_gauge_histogram_invalid_observations ... ok
[INFO] [stdout] test metrics::types::gauge::tests::test_gauge_thread_safe ... ok
[INFO] [stdout] test metrics::types::counter::tests::test_const_counter ... ok
[INFO] [stdout] test metrics::types::gauge_histogram::tests::test_text_encoding ... ok
[INFO] [stdout] test metrics::types::histogram::tests::test_histogram_invalid_observations ... ok
[INFO] [stdout] test metrics::types::histogram::tests::test_histogram_initialization ... ok
[INFO] [stdout] test metrics::types::histogram::tests::test_histogram_observe ... ok
[INFO] [stdout] test metrics::types::histogram::tests::test_histogram_thread_safe ... ok
[INFO] [stdout] test metrics::types::histogram::tests::test_text_encoding ... ok
[INFO] [stdout] test metrics::types::state_set::tests::test_state_set_thread_safe ... ok
[INFO] [stdout] test metrics::types::info::tests::test_text_encoding ... ok
[INFO] [stdout] test metrics::types::state_set::tests::test_const_stateset ... ok
[INFO] [stdout] test metrics::types::gauge_histogram::tests::test_gauge_histogram_thread_safe ... ok
[INFO] [stdout] test metrics::types::state_set::tests::test_stateset_initialization ... ok
[INFO] [stdout] test metrics::types::state_set::tests::test_stateset_set ... ok
[INFO] [stdout] test metrics::types::state_set::tests::test_text_encoding ... ok
[INFO] [stdout] test metrics::types::state_set::tests::test_stateset_states ... ok
[INFO] [stdout] test raw::atomic::tests::test_atomic_f32 ... ok
[INFO] [stdout] test raw::bucket::tests::gen_exponential_buckets ... ok
[INFO] [stdout] test metrics::types::unknown::tests::test_text_encoding ... ok
[INFO] [stdout] test raw::bucket::tests::gen_exponential_buckets_range ... ok
[INFO] [stdout] test raw::atomic::tests::test_atomic_f64 ... ok
[INFO] [stdout] test registry::global::tests::duplicated_set_global_registry ... ok
[INFO] [stdout] test raw::bucket::tests::gen_linear_buckets ... ok
[INFO] [stdout] test registry::global::tests::test_global_registry ... ok
[INFO] [stdout] test registry::global::tests::test_mutable_and_immutable_access ... ok
[INFO] [stdout] test registry::tests::test_register_same_metric ... ok
[INFO] [stdout] test registry::tests::test_registry_subsystem ... ok
[INFO] [stdout] test registry::tests::test_is_lowercase ... ok
[INFO] [stdout] test registry::tests::test_registry_subsystem_with_const_labels ... ok
[INFO] [stdout] test registry::tests::test_is_snake_case ... ok
[INFO] [stdout] test registry::global::tests::test_concurrent_access ... ok
[INFO] [stdout] test registry::tests::test_subsystem_const_labels_override ... ok
[INFO] [stdout] test metrics::types::counter::tests::test_counter_set_panic - should panic ... ok
[INFO] [stdout] test metrics::types::gauge::tests::test_const_gauge ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 50 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fastmetrics
[INFO] [stdout] 
[INFO] [stdout] running 47 tests
[INFO] [stdout] test src/encoder/label_set.rs - encoder::label_set::EncodeLabel (line 166) ... ok
[INFO] [stdout] test src/encoder/label_set.rs - encoder::label_set::EncodeLabelName (line 200) ... ok
[INFO] [stdout] test src/encoder/label_set.rs - encoder::label_set::EncodeLabelSet (line 26) ... ok
[INFO] [stdout] test src/metrics/family.rs - metrics::family::Family<LS,M,MF,S>::new (line 148) ... ok
[INFO] [stdout] test src/encoder/label_set.rs - encoder::label_set::EncodeLabelValue (line 246) ... ok
[INFO] [stdout] test src/metrics/types/counter.rs - metrics::types::counter::ConstCounter (line 161) ... ok
[INFO] [stdout] test src/metrics/family.rs - metrics::family::Family (line 64) ... ok
[INFO] [stdout] test src/lib.rs - (line 19) ... ok
[INFO] [stdout] test src/metrics/types/gauge.rs - metrics::types::gauge::ConstGauge (line 158) ... ok
[INFO] [stdout] test src/metrics/types/counter.rs - metrics::types::counter::Counter (line 43) ... ok
[INFO] [stdout] test src/metrics/types/gauge_histogram.rs - metrics::types::gauge_histogram::GaugeHistogram::with_snapshot (line 156) ... ok
[INFO] [stdout] test src/metrics/types/gauge.rs - metrics::types::gauge::Gauge (line 45) ... ok
[INFO] [stdout] test src/metrics/types/histogram.rs - metrics::types::histogram::Histogram (line 24) ... ok
[INFO] [stdout] test src/metrics/types/histogram.rs - metrics::types::histogram::Histogram::with_snapshot (line 177) ... ok
[INFO] [stdout] test src/format/text.rs - format::text::encode (line 41) ... ok
[INFO] [stdout] test src/metrics/types/gauge_histogram.rs - metrics::types::gauge_histogram::GaugeHistogram (line 23) ... ok
[INFO] [stdout] test src/metrics/family.rs - metrics::family::Family<LS,M,MF,S>::with (line 182) ... ok
[INFO] [stdout] test src/metrics/types/state_set.rs - metrics::types::state_set::ConstStateSet (line 145) ... ok
[INFO] [stdout] test src/raw/types.rs - raw::types::TypedMetric (line 40) ... ok
[INFO] [stdout] test src/metrics/types/state_set.rs - metrics::types::state_set::StateSet (line 32) ... ok
[INFO] [stdout] test src/raw/bucket.rs - raw::bucket::linear_buckets (line 81) ... ok
[INFO] [stdout] test src/raw/bucket.rs - raw::bucket::exponential_buckets_range (line 153) ... ok
[INFO] [stdout] test src/metrics/family.rs - metrics::family::Family<LS,M,MF,S>::with_or_new (line 238) ... ok
[INFO] [stdout] test src/raw/bucket.rs - raw::bucket::exponential_buckets (line 117) ... ok
[INFO] [stdout] test src/registry/global.rs - registry::global::register_metric (line 437) ... ok
[INFO] [stdout] test src/registry/global.rs - registry::global::register (line 227) ... ok
[INFO] [stdout] test src/registry/global.rs - registry::global::register (line 192) ... ok
[INFO] [stdout] test src/registry/global.rs - registry::global::register_metric (line 396) ... ok
[INFO] [stdout] test src/registry/global.rs - registry::global::register (line 209) ... ok
[INFO] [stdout] test src/registry/global.rs - registry::global::register_metric (line 417) ... ok
[INFO] [stdout] test src/registry/global.rs - registry::global::register_metric (line 487) ... ok
[INFO] [stdout] test src/registry/global.rs - registry::global::register_metric (line 464) ... ok
[INFO] [stdout] test src/registry/global.rs - registry::global::register_with_unit (line 277) ... ok
[INFO] [stdout] test src/registry/global.rs - registry::global::register_with_unit (line 340) ... ok
[INFO] [stdout] test src/registry/global.rs - registry::global::set_global_registry (line 79) ... ok
[INFO] [stdout] test src/registry/mod.rs - registry::Registry::register (line 164) ... ok
[INFO] [stdout] test src/registry/global.rs - registry::global::with_global_registry (line 119) ... ok
[INFO] [stdout] test src/registry/global.rs - registry::global::register_with_unit (line 317) ... ok
[INFO] [stdout] test src/registry/global.rs - registry::global::register_with_unit (line 297) ... ok
[INFO] [stdout] test src/registry/global.rs - registry::global::with_global_registry_mut (line 151) ... ok
[INFO] [stdout] test src/registry/mod.rs - registry::Registry::register_metric (line 236) ... ok
[INFO] [stdout] test src/registry/mod.rs - registry::Registry (line 43) ... ok
[INFO] [stdout] test src/registry/mod.rs - registry::Registry::register_with_unit (line 197) ... ok
[INFO] [stdout] test src/registry/mod.rs - registry::Registry::subsystem_builder (line 346) ... ok
[INFO] [stdout] test src/registry/mod.rs - registry::Registry::subsystem (line 309) ... ok
[INFO] [stdout] test src/registry/mod.rs - registry::RegistrySubsystemBuilder<'a>::with_const_labels (line 401) ... ok
[INFO] [stdout] test src/registry/register.rs - registry::register::Register (line 10) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 47 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 7.06s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c30fd127bbd7b820451f5c29e8e0403ab60b660ca9301a41ca5ec2c1f321d98c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c30fd127bbd7b820451f5c29e8e0403ab60b660ca9301a41ca5ec2c1f321d98c", kill_on_drop: false }`
[INFO] [stdout] c30fd127bbd7b820451f5c29e8e0403ab60b660ca9301a41ca5ec2c1f321d98c