[INFO] fetching crate slottle 0.4.2...
[INFO] testing slottle-0.4.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate slottle 0.4.2 into /workspace/builds/worker-63/source
[INFO] validating manifest of crates.io crate slottle 0.4.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slottle 0.4.2
[INFO] finished tweaking crates.io crate slottle 0.4.2
[INFO] tweaked toml for crates.io crate slottle 0.4.2 written to /workspace/builds/worker-63/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded std-semaphore v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59206946ae9d4d3e2ce38e8a537027f14c83473d159fe1546c419b593022dfd5
[INFO] running `Command { std: "docker" "start" "-a" "59206946ae9d4d3e2ce38e8a537027f14c83473d159fe1546c419b593022dfd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59206946ae9d4d3e2ce38e8a537027f14c83473d159fe1546c419b593022dfd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59206946ae9d4d3e2ce38e8a537027f14c83473d159fe1546c419b593022dfd5", kill_on_drop: false }`
[INFO] [stdout] 59206946ae9d4d3e2ce38e8a537027f14c83473d159fe1546c419b593022dfd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6df48a916a1b3d5f6d5d9c069031d7a7b5a3f1d1a140c1d37771db5592618cc1
[INFO] running `Command { std: "docker" "start" "-a" "6df48a916a1b3d5f6d5d9c069031d7a7b5a3f1d1a140c1d37771db5592618cc1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling std-semaphore v0.1.0
[INFO] [stderr]    Compiling slottle v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "6df48a916a1b3d5f6d5d9c069031d7a7b5a3f1d1a140c1d37771db5592618cc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6df48a916a1b3d5f6d5d9c069031d7a7b5a3f1d1a140c1d37771db5592618cc1", kill_on_drop: false }`
[INFO] [stdout] 6df48a916a1b3d5f6d5d9c069031d7a7b5a3f1d1a140c1d37771db5592618cc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ba133f9fbee219ef99b7064810fafb03a54147268afa2e30d4437979ececa4b
[INFO] running `Command { std: "docker" "start" "-a" "9ba133f9fbee219ef99b7064810fafb03a54147268afa2e30d4437979ececa4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling slottle v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.49s
[INFO] running `Command { std: "docker" "inspect" "9ba133f9fbee219ef99b7064810fafb03a54147268afa2e30d4437979ececa4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ba133f9fbee219ef99b7064810fafb03a54147268afa2e30d4437979ececa4b", kill_on_drop: false }`
[INFO] [stdout] 9ba133f9fbee219ef99b7064810fafb03a54147268afa2e30d4437979ececa4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fb8d429bc45c7bff4424219efe3f46c1412a1e2de7e2487895998c550cccfbd1
[INFO] running `Command { std: "docker" "start" "-a" "fb8d429bc45c7bff4424219efe3f46c1412a1e2de7e2487895998c550cccfbd1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/slottle-362128db3478e278)
[INFO] [stdout] running 9 tests
[INFO] [stdout] test throttle::interval::tests::test_fibonacci ... ok
[INFO] [stdout] test throttle::tests::interval_modify ... ok
[INFO] [stdout] test throttle::tests::throttle_log_new_0 ... ok
[INFO] [stdout] test throttle::tests::throttle_log_op ... ok
[INFO] [stdout] test throttle::tests::retryable_result_convert ... ok
[INFO] [stdout] test throttle::tests::with_concurrent_equal_to_isize_max ... ok
[INFO] [stdout] test throttle::tests::with_concurrent_equal_0 ... ok
[INFO] [stdout] test throttle::interval::tests::test_fibonacci_max_smaller_than_base - should panic ... ok
[INFO] [stdout] test throttle_pool::tests::run ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.31s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests slottle
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test src/throttle/interval.rs - throttle::interval::fibonacci (line 15) ... ignored
[INFO] [stdout] test src/throttle/mod.rs - throttle::ThrottleBuilder::interval (line 357) ... ok
[INFO] [stdout] test src/throttle/mod.rs - throttle::Interval::modify (line 606) ... ok
[INFO] [stdout] test src/throttle_pool.rs - throttle_pool::ThrottlePoolBuilder<K>::interval (line 80) ... ok
[INFO] [stdout] test src/throttle/mod.rs - throttle::Throttle::run_fallible (line 81) ... ok
[INFO] [stdout] test src/throttle/mod.rs - throttle::Throttle::retry (line 183) ... ok
[INFO] [stdout] test src/lib.rs - (line 81) ... ok
[INFO] [stdout] test src/throttle/mod.rs - throttle::Throttle::retry (line 210) ... ok
[INFO] [stdout] test src/throttle/mod.rs - throttle::Throttle::run (line 36) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 2.28s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fb8d429bc45c7bff4424219efe3f46c1412a1e2de7e2487895998c550cccfbd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb8d429bc45c7bff4424219efe3f46c1412a1e2de7e2487895998c550cccfbd1", kill_on_drop: false }`
[INFO] [stdout] fb8d429bc45c7bff4424219efe3f46c1412a1e2de7e2487895998c550cccfbd1