[INFO] crate failsafe 0.3.1 is already in cache
[INFO] testing failsafe-0.3.1 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate failsafe 0.3.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate failsafe 0.3.1 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate failsafe 0.3.1
[INFO] finished tweaking crates.io crate failsafe 0.3.1
[INFO] tweaked toml for crates.io crate failsafe 0.3.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] 3d888f5439c9e858e3d670279ce9d17004f780e25244ac1fa0da040ce0dde946
[INFO] running `Command { std: "docker" "start" "-a" "3d888f5439c9e858e3d670279ce9d17004f780e25244ac1fa0da040ce0dde946", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d888f5439c9e858e3d670279ce9d17004f780e25244ac1fa0da040ce0dde946", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d888f5439c9e858e3d670279ce9d17004f780e25244ac1fa0da040ce0dde946", kill_on_drop: false }`
[INFO] [stdout] 3d888f5439c9e858e3d670279ce9d17004f780e25244ac1fa0da040ce0dde946
[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" "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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] b460260d644fb601e2a61753a3a4f0092ddda4b2c070ab062913965176d9c101
[INFO] running `Command { std: "docker" "start" "-a" "b460260d644fb601e2a61753a3a4f0092ddda4b2c070ab062913965176d9c101", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling spin v0.4.10
[INFO] [stderr]    Compiling futures v0.1.29
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling failsafe v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:32:38
[INFO] [stdout]    |
[INFO] [stdout] 32 |             Error::Inner(err) => err.description(),
[INFO] [stdout]    |                                      ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.99s
[INFO] running `Command { std: "docker" "inspect" "b460260d644fb601e2a61753a3a4f0092ddda4b2c070ab062913965176d9c101", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b460260d644fb601e2a61753a3a4f0092ddda4b2c070ab062913965176d9c101", kill_on_drop: false }`
[INFO] [stdout] b460260d644fb601e2a61753a3a4f0092ddda4b2c070ab062913965176d9c101
[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" "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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 159da480800acd2e641a19b646fc2261cfbb0b75a377c93811cf429f5ad398bf
[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" "159da480800acd2e641a19b646fc2261cfbb0b75a377c93811cf429f5ad398bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:32:38
[INFO] [stdout]    |
[INFO] [stdout] 32 |             Error::Inner(err) => err.description(),
[INFO] [stdout]    |                                      ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling tokio-sync v0.1.8
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling tokio-timer v0.2.13
[INFO] [stderr]    Compiling tokio-current-thread v0.1.7
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling tokio-uds v0.2.7
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling failsafe v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:32:38
[INFO] [stdout]    |
[INFO] [stdout] 32 |             Error::Inner(err) => err.description(),
[INFO] [stdout]    |                                      ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:75:24
[INFO] [stdout]    |
[INFO] [stdout] 75 | #![cfg_attr(test, deny(warnings))]
[INFO] [stdout]    |                        ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 20.92s
[INFO] running `Command { std: "docker" "inspect" "159da480800acd2e641a19b646fc2261cfbb0b75a377c93811cf429f5ad398bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "159da480800acd2e641a19b646fc2261cfbb0b75a377c93811cf429f5ad398bf", kill_on_drop: false }`
[INFO] [stdout] 159da480800acd2e641a19b646fc2261cfbb0b75a377c93811cf429f5ad398bf
[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" "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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", 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] 25b385651557bd7730e785085e42c240be1c087a9e58453675047ce096fdf7de
[INFO] running `Command { std: "docker" "start" "-a" "25b385651557bd7730e785085e42c240be1c087a9e58453675047ce096fdf7de", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:32:38
[INFO] [stderr]    |
[INFO] [stderr] 32 |             Error::Inner(err) => err.description(),
[INFO] [stderr]    |                                      ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:32:38
[INFO] [stderr]    |
[INFO] [stderr] 32 |             Error::Inner(err) => err.description(),
[INFO] [stderr]    |                                      ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:75:24
[INFO] [stderr]    |
[INFO] [stderr] 75 | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]    |                        ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/failsafe-1724058977d76581
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test backoff::tests::constant_growth ... ok
[INFO] [stdout] test circuit_breaker::tests::call_err ... ok
[INFO] [stdout] test circuit_breaker::tests::call_ok ... ok
[INFO] [stdout] test failure_policy::tests::consecutive_failures::reset_to_zero_on_revived ... ok
[INFO] [stdout] test ema::tests::updates_are_time_invariant ... 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 backoff::tests::exponential_growth ... ok
[INFO] [stdout] test backoff::tests::equal_jittered_growth ... ok
[INFO] [stdout] test backoff::tests::full_jittered_growth ... ok
[INFO] [stdout] test failure_policy::tests::consecutive_failures::iterates_over_backoff ... ok
[INFO] [stdout] test circuit_breaker::tests::call_with ... ok
[INFO] [stdout] test ema::tests::reset ... ok
[INFO] [stdout] test ema::tests::compute ... ok
[INFO] [stdout] test failure_policy::tests::consecutive_failures::fail_on_nth_attempt ... ok
[INFO] [stdout] test failure_policy::tests::success_rate_over_time_window::fractional_success_rate ... 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::sum_when_time_stands_still ... ok
[INFO] [stdout] test windowed_adder::tests::sliding_window_when_slices_are_skipped ... 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 futures::tests::call_err ... ok
[INFO] [stdout] test ema::tests::non_monotonic_timestamp ... ok
[INFO] [stdout] test futures::tests::call_ok ... ok
[INFO] [stdout] test futures::tests::call_with ... 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 `Command { std: "docker" "inspect" "25b385651557bd7730e785085e42c240be1c087a9e58453675047ce096fdf7de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25b385651557bd7730e785085e42c240be1c087a9e58453675047ce096fdf7de", kill_on_drop: false }`
[INFO] [stdout] 25b385651557bd7730e785085e42c240be1c087a9e58453675047ce096fdf7de