[INFO] fetching crate pravega-client-retry 0.2.0...
[INFO] testing pravega-client-retry-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate pravega-client-retry 0.2.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate pravega-client-retry 0.2.0 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 pravega-client-retry 0.2.0
[INFO] finished tweaking crates.io crate pravega-client-retry 0.2.0
[INFO] tweaked toml for crates.io crate pravega-client-retry 0.2.0 written to /workspace/builds/worker-7/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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 63c48e19fc471bd61440f91c3f2c7c79641f6346b8cffb859d472672e4b39cfc
[INFO] running `Command { std: "docker" "start" "-a" "63c48e19fc471bd61440f91c3f2c7c79641f6346b8cffb859d472672e4b39cfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63c48e19fc471bd61440f91c3f2c7c79641f6346b8cffb859d472672e4b39cfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63c48e19fc471bd61440f91c3f2c7c79641f6346b8cffb859d472672e4b39cfc", kill_on_drop: false }`
[INFO] [stdout] 63c48e19fc471bd61440f91c3f2c7c79641f6346b8cffb859d472672e4b39cfc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 309cb31fcfe6b73e48615e6dd3a8d420f08b49bb273229e25fa6caf5e67ea072
[INFO] running `Command { std: "docker" "start" "-a" "309cb31fcfe6b73e48615e6dd3a8d420f08b49bb273229e25fa6caf5e67ea072", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling instant v0.1.10
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling snafu-derive v0.6.10
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling snafu v0.6.10
[INFO] [stderr]    Compiling pravega-client-retry v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `Command { std: "docker" "inspect" "309cb31fcfe6b73e48615e6dd3a8d420f08b49bb273229e25fa6caf5e67ea072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "309cb31fcfe6b73e48615e6dd3a8d420f08b49bb273229e25fa6caf5e67ea072", kill_on_drop: false }`
[INFO] [stdout] 309cb31fcfe6b73e48615e6dd3a8d420f08b49bb273229e25fa6caf5e67ea072
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] e49549fdd08c170832fe7c75cab65b43455149808de8479dd64a80cdc5748003
[INFO] running `Command { std: "docker" "start" "-a" "e49549fdd08c170832fe7c75cab65b43455149808de8479dd64a80cdc5748003", kill_on_drop: false }`
[INFO] [stderr]    Compiling pravega-client-retry v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.59s
[INFO] running `Command { std: "docker" "inspect" "e49549fdd08c170832fe7c75cab65b43455149808de8479dd64a80cdc5748003", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e49549fdd08c170832fe7c75cab65b43455149808de8479dd64a80cdc5748003", kill_on_drop: false }`
[INFO] [stdout] e49549fdd08c170832fe7c75cab65b43455149808de8479dd64a80cdc5748003
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 7022bafb7362d91f3bf7fd5fa323e1afc0fe92ae44fa6a470b44d40e989cedfd
[INFO] running `Command { std: "docker" "start" "-a" "7022bafb7362d91f3bf7fd5fa323e1afc0fe92ae44fa6a470b44d40e989cedfd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pravega_client_retry-fa877f809fb76853)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test retry_policy::returns_max_when_max_less_than_base ... ok
[INFO] [stdout] test retry_policy::stops_increasing_at_max_delay ... ok
[INFO] [stdout] test retry_policy::test_returns_some_exponential_base_10 ... ok
[INFO] [stdout] test retry_policy::test_returns_some_exponential_base_2 ... ok
[INFO] [stdout] test retry_policy::test_returns_with_finite_retries ... ok
[INFO] [stdout] test retry_policy::test_saturates_at_maximum_value ... ok
[INFO] [stdout] test retry_policy::test_uses_default_setting ... ok
[INFO] [stdout] test retry_sync::tests::test_fails_with_non_retryable_err ... ok
[INFO] [stdout] test retry_sync::tests::test_fails_after_last_retry ... ok
[INFO] [stdout] test retry_sync::tests::test_succeeds_with_maximum_retries ... ok
[INFO] [stdout] test retry_sync::tests::test_succeeds_with_snafu_error ... ok
[INFO] [stdout] test retry_async::tests::attempts_just_once ... ok
[INFO] [stdout] test retry_async::tests::attempts_until_max_retries_exceeded ... ok
[INFO] [stdout] test retry_async::tests::attempts_until_success ... ok
[INFO] [stdout] test retry_sync::tests::test_succeeds_with_default_setting ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.13s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests pravega-client-retry
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/retry_result.rs - wrap_with_async_retry (line 49) ... ignored
[INFO] [stdout] test src/retry_result.rs - wrap_with_sync_retry (line 90) ... ignored
[INFO] [stdout] test src/lib.rs - (line 14) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.95s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7022bafb7362d91f3bf7fd5fa323e1afc0fe92ae44fa6a470b44d40e989cedfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7022bafb7362d91f3bf7fd5fa323e1afc0fe92ae44fa6a470b44d40e989cedfd", kill_on_drop: false }`
[INFO] [stdout] 7022bafb7362d91f3bf7fd5fa323e1afc0fe92ae44fa6a470b44d40e989cedfd