[INFO] fetching crate witchcraft-metrics 0.2.0...
[INFO] testing witchcraft-metrics-0.2.0 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate witchcraft-metrics 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate witchcraft-metrics 0.2.0 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate witchcraft-metrics 0.2.0
[INFO] finished tweaking crates.io crate witchcraft-metrics 0.2.0
[INFO] tweaked toml for crates.io crate witchcraft-metrics 0.2.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 014d1cb42df6e853805d6a2bf08b676cd87a94f4b2b0383875789ece693d1f0a
[INFO] running `Command { std: "docker" "start" "-a" "014d1cb42df6e853805d6a2bf08b676cd87a94f4b2b0383875789ece693d1f0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "014d1cb42df6e853805d6a2bf08b676cd87a94f4b2b0383875789ece693d1f0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "014d1cb42df6e853805d6a2bf08b676cd87a94f4b2b0383875789ece693d1f0a", kill_on_drop: false }`
[INFO] [stdout] 014d1cb42df6e853805d6a2bf08b676cd87a94f4b2b0383875789ece693d1f0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 23fe50e707ec7940567878f10b4fe211f6cb0bcb7df5afe497c0995596da3347
[INFO] running `Command { std: "docker" "start" "-a" "23fe50e707ec7940567878f10b4fe211f6cb0bcb7df5afe497c0995596da3347", kill_on_drop: false }`
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling lock_api v0.4.4
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling ordered-float v2.5.1
[INFO] [stderr]    Compiling exponential-decay-histogram v0.1.9
[INFO] [stderr]    Compiling serde-value v0.7.0
[INFO] [stderr]    Compiling witchcraft-metrics v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.52s
[INFO] running `Command { std: "docker" "inspect" "23fe50e707ec7940567878f10b4fe211f6cb0bcb7df5afe497c0995596da3347", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23fe50e707ec7940567878f10b4fe211f6cb0bcb7df5afe497c0995596da3347", kill_on_drop: false }`
[INFO] [stdout] 23fe50e707ec7940567878f10b4fe211f6cb0bcb7df5afe497c0995596da3347
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1e70d241db0204b1bb8127dd974d7f3c43f48798f9160c1508c3db4e933814d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d1e70d241db0204b1bb8127dd974d7f3c43f48798f9160c1508c3db4e933814d", kill_on_drop: false }`
[INFO] [stderr]    Compiling assert_approx_eq v1.1.0
[INFO] [stderr]    Compiling witchcraft-metrics v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.07s
[INFO] running `Command { std: "docker" "inspect" "d1e70d241db0204b1bb8127dd974d7f3c43f48798f9160c1508c3db4e933814d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1e70d241db0204b1bb8127dd974d7f3c43f48798f9160c1508c3db4e933814d", kill_on_drop: false }`
[INFO] [stdout] d1e70d241db0204b1bb8127dd974d7f3c43f48798f9160c1508c3db4e933814d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e8614dd1d0d2a3b8d5e96a99ff249012e0b5b6abc165b6946f1f79914ead869a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e8614dd1d0d2a3b8d5e96a99ff249012e0b5b6abc165b6946f1f79914ead869a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/witchcraft_metrics-86f73ff37d2ae975)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test counter::test::basic ... ok
[INFO] [stdout] test registry::test::tagged_distinct_from_untagged ... ok
[INFO] [stdout] test registry::test::metrics_returns_snapshot ... ok
[INFO] [stdout] test registry::test::first_metric_wins ... ok
[INFO] [stdout] test meter::test::marks_events_and_updates_rate_and_count ... ok
[INFO] [stdout] test meter::test::starts_out_with_no_rates_or_count ... ok
[INFO] [stdout] test timer::test::basic ... ok
[INFO] [stdout] test histogram::test::basic ... ok
[INFO] [stdout] test metric_id::test::basic ... ok
[INFO] [stdout] test reservoir::test::exponential_basic ... ok
[INFO] [stdout] test gauge::test::downcast ... ok
[INFO] [stdout] test timer::test::time ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests witchcraft-metrics
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/registry.rs - registry::MetricRegistry (line 42) ... ok
[INFO] [stdout] test src/lib.rs - (line 20) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.28s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e8614dd1d0d2a3b8d5e96a99ff249012e0b5b6abc165b6946f1f79914ead869a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8614dd1d0d2a3b8d5e96a99ff249012e0b5b6abc165b6946f1f79914ead869a", kill_on_drop: false }`
[INFO] [stdout] e8614dd1d0d2a3b8d5e96a99ff249012e0b5b6abc165b6946f1f79914ead869a