[INFO] crate failsafe 0.3.1 is already in cache
[INFO] extracting crate failsafe 0.3.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/failsafe/0.3.1
[INFO] extracting crate failsafe 0.3.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/failsafe/0.3.1
[INFO] validating manifest of failsafe-0.3.1 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of failsafe-0.3.1 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing failsafe-0.3.1
[INFO] finished frobbing failsafe-0.3.1
[INFO] frobbed toml for failsafe-0.3.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/failsafe/0.3.1/Cargo.toml
[INFO] started frobbing failsafe-0.3.1
[INFO] finished frobbing failsafe-0.3.1
[INFO] frobbed toml for failsafe-0.3.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/failsafe/0.3.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing failsafe-0.3.1 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/failsafe/0.3.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 6a68351aebfb6df404e581d80dfde568fcdb730050f226e971922301e727cb8e
[INFO] running `"docker" "start" "-a" "6a68351aebfb6df404e581d80dfde568fcdb730050f226e971922301e727cb8e"`
[INFO] [stderr]    Compiling spin v0.4.10
[INFO] [stderr]    Compiling failsafe v0.3.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `"docker" "inspect" "6a68351aebfb6df404e581d80dfde568fcdb730050f226e971922301e727cb8e"`
[INFO] running `"docker" "rm" "-f" "6a68351aebfb6df404e581d80dfde568fcdb730050f226e971922301e727cb8e"`
[INFO] [stdout] 6a68351aebfb6df404e581d80dfde568fcdb730050f226e971922301e727cb8e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/failsafe/0.3.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] c939734ee1856f32547ea0a9b98f11be21d0c79da8ad37b014f04f31abb527ca
[INFO] running `"docker" "start" "-a" "c939734ee1856f32547ea0a9b98f11be21d0c79da8ad37b014f04f31abb527ca"`
[INFO] [stderr]    Compiling failsafe v0.3.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.78s
[INFO] running `"docker" "inspect" "c939734ee1856f32547ea0a9b98f11be21d0c79da8ad37b014f04f31abb527ca"`
[INFO] running `"docker" "rm" "-f" "c939734ee1856f32547ea0a9b98f11be21d0c79da8ad37b014f04f31abb527ca"`
[INFO] [stdout] c939734ee1856f32547ea0a9b98f11be21d0c79da8ad37b014f04f31abb527ca
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/failsafe/0.3.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 9b3f0b4cd56dbb0fa8d0679694413e012b7e8a94cad1ad77ab55f991488fc414
[INFO] running `"docker" "start" "-a" "9b3f0b4cd56dbb0fa8d0679694413e012b7e8a94cad1ad77ab55f991488fc414"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/failsafe-5278df9a73f25675
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test backoff::tests::exponential_growth ... ok
[INFO] [stdout] test ema::tests::compute ... ok
[INFO] [stdout] test circuit_breaker::tests::call_with ... ok
[INFO] [stdout] test circuit_breaker::tests::call_ok ... ok
[INFO] [stdout] test circuit_breaker::tests::call_err ... ok
[INFO] [stdout] test backoff::tests::full_jittered_growth ... ok
[INFO] [stdout] test backoff::tests::equal_jittered_growth ... ok
[INFO] [stdout] test failure_policy::tests::consecutive_failures::iterates_over_backoff ... ok
[INFO] [stdout] test backoff::tests::constant_growth ... ok
[INFO] [stdout] test failure_policy::tests::consecutive_failures::reset_to_zero_on_revived ... ok
[INFO] [stdout] test failure_policy::tests::consecutive_failures::reset_to_zero_on_success ... ok
[INFO] [stdout] test failure_policy::tests::or_else::compose_policies ... ok
[INFO] [stdout] test failure_policy::tests::success_rate_over_time_window::fail_when_success_rate_not_met ... ok
[INFO] [stdout] test failure_policy::tests::success_rate_over_time_window::fractional_success_rate ... ok
[INFO] [stdout] test failure_policy::tests::success_rate_over_time_window::respects_rps_threshold ... ok
[INFO] [stdout] test failure_policy::tests::success_rate_over_time_window::revived_resets_failures ... ok
[INFO] [stdout] test failure_predicate::tests::use_func_as_failure_predicate ... ok
[INFO] [stdout] test state_machine::tests::state_machine ... ok
[INFO] [stdout] test windowed_adder::tests::negative_sums ... ok
[INFO] [stdout] test windowed_adder::tests::sliding_over_large_window ... ok
[INFO] [stdout] test windowed_adder::tests::sliding_over_small_window ... ok
[INFO] [stdout] test windowed_adder::tests::sliding_window_when_slices_are_skipped ... ok
[INFO] [stdout] test windowed_adder::tests::sum_when_time_stands_still ... ok
[INFO] [stdout] test failure_policy::tests::consecutive_failures::fail_on_nth_attempt ... ok
[INFO] [stdout] test ema::tests::updates_are_time_invariant ... ok
[INFO] [stdout] test ema::tests::reset ... ok
[INFO] [stdout] test futures::tests::call_err ... ok
[INFO] [stdout] test futures::tests::call_with ... ok
[INFO] [stdout] test futures::tests::call_ok ... ok
[INFO] [stdout] test ema::tests::non_monotonic_timestamp ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests failsafe
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs -  (line 52) ... ok
[INFO] [stdout] test src/lib.rs -  (line 15) ... ok
[INFO] [stdout] test src/futures/mod.rs - futures (line 7) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "9b3f0b4cd56dbb0fa8d0679694413e012b7e8a94cad1ad77ab55f991488fc414"`
[INFO] running `"docker" "rm" "-f" "9b3f0b4cd56dbb0fa8d0679694413e012b7e8a94cad1ad77ab55f991488fc414"`
[INFO] [stdout] 9b3f0b4cd56dbb0fa8d0679694413e012b7e8a94cad1ad77ab55f991488fc414