[INFO] fetching crate exponential-decay-histogram 0.1.5...
[INFO] testing exponential-decay-histogram-0.1.5 against 1.44.0 for beta-1.45-1
[INFO] extracting crate exponential-decay-histogram 0.1.5 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate exponential-decay-histogram 0.1.5 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 exponential-decay-histogram 0.1.5
[INFO] finished tweaking crates.io crate exponential-decay-histogram 0.1.5
[INFO] tweaked toml for crates.io crate exponential-decay-histogram 0.1.5 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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] 8266f635a6b4da4b7a4ce9cd1cbc6872f40d6f3ac97a64645c5c6a6c1e283cf7
[INFO] running `"docker" "start" "-a" "8266f635a6b4da4b7a4ce9cd1cbc6872f40d6f3ac97a64645c5c6a6c1e283cf7"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling ordered-float v1.0.2
[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 rand v0.7.3
[INFO] [stderr]    Compiling exponential-decay-histogram v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.67s
[INFO] running `"docker" "inspect" "8266f635a6b4da4b7a4ce9cd1cbc6872f40d6f3ac97a64645c5c6a6c1e283cf7"`
[INFO] running `"docker" "rm" "-f" "8266f635a6b4da4b7a4ce9cd1cbc6872f40d6f3ac97a64645c5c6a6c1e283cf7"`
[INFO] [stdout] 8266f635a6b4da4b7a4ce9cd1cbc6872f40d6f3ac97a64645c5c6a6c1e283cf7
[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] b3ced1c644ec8113e74b305cc90d36a2fda892bcbf40d71e911bb3326a6328d6
[INFO] running `"docker" "start" "-a" "b3ced1c644ec8113e74b305cc90d36a2fda892bcbf40d71e911bb3326a6328d6"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling criterion-plot v0.3.1
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr]    Compiling tinytemplate v1.1.0
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling exponential-decay-histogram v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 27.05s
[INFO] running `"docker" "inspect" "b3ced1c644ec8113e74b305cc90d36a2fda892bcbf40d71e911bb3326a6328d6"`
[INFO] running `"docker" "rm" "-f" "b3ced1c644ec8113e74b305cc90d36a2fda892bcbf40d71e911bb3326a6328d6"`
[INFO] [stdout] b3ced1c644ec8113e74b305cc90d36a2fda892bcbf40d71e911bb3326a6328d6
[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] 2eec3965c51f78e0d423dd9b988e24c239c677c0f2904f725f2886d760235db3
[INFO] running `"docker" "start" "-a" "2eec3965c51f78e0d423dd9b988e24c239c677c0f2904f725f2886d760235db3"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/exponential_decay_histogram-69e9dc7483a029c0
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test test::a_heavily_biased_histogram_of_100_out_of_1000_elements ... ok
[INFO] [stdout] test test::a_histogram_of_100_out_of_1000_elements ... ok
[INFO] [stdout] test test::a_histogram_of_100_out_of_10_elements ... ok
[INFO] [stdout] test test::values ... ok
[INFO] [stdout] test test::quantiles_should_be_based_on_weights ... ok
[INFO] [stdout] test test::long_periods_of_inactivity_should_not_corrupt_sampling_state ... ok
[INFO] [stdout] test test::spot_fall ... ok
[INFO] [stdout] test test::spot_lift ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests exponential-decay-histogram
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 21) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "2eec3965c51f78e0d423dd9b988e24c239c677c0f2904f725f2886d760235db3"`
[INFO] running `"docker" "rm" "-f" "2eec3965c51f78e0d423dd9b988e24c239c677c0f2904f725f2886d760235db3"`
[INFO] [stdout] 2eec3965c51f78e0d423dd9b988e24c239c677c0f2904f725f2886d760235db3