[INFO] fetching crate tracing-timing 0.7.0...
[INFO] testing tracing-timing-0.7.0 against master#c2efcc4ae006a6b2761cb42572fc9cee0d1ce4af for pr-154756
[INFO] extracting crate tracing-timing 0.7.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate tracing-timing 0.7.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate tracing-timing 0.7.0
[INFO] tweaked toml for crates.io crate tracing-timing 0.7.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tracing-timing 0.7.0 on toolchain c2efcc4ae006a6b2761cb42572fc9cee0d1ce4af
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2efcc4ae006a6b2761cb42572fc9cee0d1ce4af" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tracing-timing 0.7.0 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" "+c2efcc4ae006a6b2761cb42572fc9cee0d1ce4af" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quanta v0.12.6
[INFO] [stderr]   Downloaded rand_distr v0.5.1
[INFO] [stderr]   Downloaded raw-cpuid v11.5.0
[INFO] [stderr]   Downloaded hdrhistogram v7.5.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+c2efcc4ae006a6b2761cb42572fc9cee0d1ce4af" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87335a97be6a402f4a650caa2c98feb095ebb54cefac2670e73506fee924dc68
[INFO] running `Command { std: "docker" "start" "-a" "87335a97be6a402f4a650caa2c98feb095ebb54cefac2670e73506fee924dc68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87335a97be6a402f4a650caa2c98feb095ebb54cefac2670e73506fee924dc68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87335a97be6a402f4a650caa2c98feb095ebb54cefac2670e73506fee924dc68", kill_on_drop: false }`
[INFO] [stdout] 87335a97be6a402f4a650caa2c98feb095ebb54cefac2670e73506fee924dc68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+c2efcc4ae006a6b2761cb42572fc9cee0d1ce4af" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4da9e1f5a897c2bb41dd207e12b241471c0fc220c7e678500b76c5058f264e32
[INFO] running `Command { std: "docker" "start" "-a" "4da9e1f5a897c2bb41dd207e12b241471c0fc220c7e678500b76c5058f264e32", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling raw-cpuid v11.5.0
[INFO] [stderr]    Compiling hashbrown v0.15.4
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling flate2 v1.1.2
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling tracing-subscriber v0.3.19
[INFO] [stderr]    Compiling indexmap v2.10.0
[INFO] [stderr]    Compiling quanta v0.12.6
[INFO] [stderr]    Compiling hdrhistogram v7.5.4
[INFO] [stderr]    Compiling tracing-timing v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.60s
[INFO] running `Command { std: "docker" "inspect" "4da9e1f5a897c2bb41dd207e12b241471c0fc220c7e678500b76c5058f264e32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4da9e1f5a897c2bb41dd207e12b241471c0fc220c7e678500b76c5058f264e32", kill_on_drop: false }`
[INFO] [stdout] 4da9e1f5a897c2bb41dd207e12b241471c0fc220c7e678500b76c5058f264e32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+c2efcc4ae006a6b2761cb42572fc9cee0d1ce4af" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d0d1854d71fae5f50009e5d47872f1bc25519943dd7c095c10c8cd02da31e01
[INFO] running `Command { std: "docker" "start" "-a" "4d0d1854d71fae5f50009e5d47872f1bc25519943dd7c095c10c8cd02da31e01", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling hdrhistogram v7.5.4
[INFO] [stderr]    Compiling rand_distr v0.5.1
[INFO] [stderr]    Compiling tracing-timing v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 13.29s
[INFO] running `Command { std: "docker" "inspect" "4d0d1854d71fae5f50009e5d47872f1bc25519943dd7c095c10c8cd02da31e01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d0d1854d71fae5f50009e5d47872f1bc25519943dd7c095c10c8cd02da31e01", kill_on_drop: false }`
[INFO] [stdout] 4d0d1854d71fae5f50009e5d47872f1bc25519943dd7c095c10c8cd02da31e01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+c2efcc4ae006a6b2761cb42572fc9cee0d1ce4af" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 18e098dfa163925ec6a238478157dd7eb519e71570537589e8d68ea68ab3f4c2
[INFO] running `Command { std: "docker" "start" "-a" "18e098dfa163925ec6a238478157dd7eb519e71570537589e8d68ea68ab3f4c2", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tracing_timing-b6883d65cd04281c)
[INFO] [stderr]      Running tests/layer.rs (/opt/rustwide/target/debug/deps/layer-37dd0fff5231dfc9)
[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] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test by_name ... ok
[INFO] [stdout] test by_target ... ok
[INFO] [stdout] test by_field_typed ... ok
[INFO] [stdout] test by_field ... ok
[INFO] [stdout] test event_order ... ok
[INFO] [stdout] test free_standing_event ... ok
[INFO] [stdout] test explicit_event_parent ... ok
[INFO] [stdout] test by_default ... ok
[INFO] [stdout] test nested_bubble ... ok
[INFO] [stdout] test informed_histogram_constructor ... ok
[INFO] [stdout] test custom_time ... ok
[INFO] [stdout] test nested ... ok
[INFO] [stdout] test dupe_span ... ok
[INFO] [stdout] test explicit_span_parent ... ok
[INFO] [stdout] test by_closure ... ok
[INFO] [stdout] test tracks_current_span ... ok
[INFO] [stdout] test downcaster ... ok
[INFO] [stdout] test span_close_event ... ok
[INFO] [stdout] test nested_no_bubble ... ok
[INFO] [stdout] test same_event_two_threads ... ok
[INFO] [stdout] test nested_diff ... ok
[INFO] [stdout] test tracks_current_span_deep ... ok
[INFO] [stdout] test samples ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.69s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/subscriber.rs (/opt/rustwide/target/debug/deps/subscriber-8a6546e9522788b5)
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test downcaster ... ok
[INFO] [stdout] test by_name ... ok
[INFO] [stdout] test free_standing_event ... ok
[INFO] [stdout] test informed_histogram_constructor ... ok
[INFO] [stdout] test by_field_typed ... ok
[INFO] [stdout] test dupe_span ... ok
[INFO] [stdout] test by_closure ... ok
[INFO] [stdout] test event_order ... ok
[INFO] [stdout] test explicit_span_parent ... ok
[INFO] [stdout] test by_default ... ok
[INFO] [stdout] test by_target ... ok
[INFO] [stdout] test custom_time ... ok
[INFO] [stdout] test tracks_current_span ... ok
[INFO] [stdout] test by_field ... ok
[INFO] [stdout] test same_event_two_threads ... ok
[INFO] [stdout] test tracks_current_span_deep ... ok
[INFO] [stdout] test nested_no_bubble ... ok
[INFO] [stdout] test nested_bubble ... ok
[INFO] [stdout] test span_close_event ... ok
[INFO] [stdout] test explicit_event_parent ... ok
[INFO] [stdout] test nested ... ok
[INFO] [stdout] test nested_diff ... ok
[INFO] [stdout] test samples ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.72s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tracing_timing
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test src/lib.rs - (line 130) - compile ... ok
[INFO] [stdout] test src/builder.rs - builder::Builder (line 12) ... ok
[INFO] [stdout] test src/builder.rs - builder::Builder<S,E>::layer_informed (line 187) ... ok
[INFO] [stdout] test src/lib.rs - SpanGroup (line 243) ... ok
[INFO] [stdout] test src/builder.rs - builder::Builder<S,E>::build_informed (line 129) ... ok
[INFO] [stdout] test src/lib.rs - EventGroup (line 271) ... ok
[INFO] [stdout] test src/lib.rs - (line 105) ... ok
[INFO] [stdout] test src/lib.rs - (line 71) ... ok
[INFO] [stdout] test src/layer.rs - layer::TimingLayer<S,E>::downcaster (line 180) ... ok
[INFO] [stdout] test src/subscriber.rs - subscriber::TimingSubscriber<S,E>::downcaster (line 282) ... ok
[INFO] [stdout] test src/lib.rs - (line 223) ... ok
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.14s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "18e098dfa163925ec6a238478157dd7eb519e71570537589e8d68ea68ab3f4c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18e098dfa163925ec6a238478157dd7eb519e71570537589e8d68ea68ab3f4c2", kill_on_drop: false }`
[INFO] [stdout] 18e098dfa163925ec6a238478157dd7eb519e71570537589e8d68ea68ab3f4c2