[INFO] fetching crate tokio-cadence 0.3.0...
[INFO] testing tokio-cadence-0.3.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate tokio-cadence 0.3.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate tokio-cadence 0.3.0 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 tokio-cadence 0.3.0
[INFO] finished tweaking crates.io crate tokio-cadence 0.3.0
[INFO] tweaked toml for crates.io crate tokio-cadence 0.3.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate tokio-cadence 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cadence v0.24.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 55d94f13b7d2b820e64eee35b39667f28fb249fe289635c7c8d864dd2b05cb27
[INFO] running `Command { std: "docker" "start" "-a" "55d94f13b7d2b820e64eee35b39667f28fb249fe289635c7c8d864dd2b05cb27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55d94f13b7d2b820e64eee35b39667f28fb249fe289635c7c8d864dd2b05cb27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55d94f13b7d2b820e64eee35b39667f28fb249fe289635c7c8d864dd2b05cb27", kill_on_drop: false }`
[INFO] [stdout] 55d94f13b7d2b820e64eee35b39667f28fb249fe289635c7c8d864dd2b05cb27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 4164bb1e6abd82c5f3dc319cfb6b898cc08786e20b5bba575ddaf069d5f57e83
[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" "4164bb1e6abd82c5f3dc319cfb6b898cc08786e20b5bba575ddaf069d5f57e83", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling mio v0.7.7
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling cadence v0.24.0
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling tokio-cadence v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.80s
[INFO] running `Command { std: "docker" "inspect" "4164bb1e6abd82c5f3dc319cfb6b898cc08786e20b5bba575ddaf069d5f57e83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4164bb1e6abd82c5f3dc319cfb6b898cc08786e20b5bba575ddaf069d5f57e83", kill_on_drop: false }`
[INFO] [stdout] 4164bb1e6abd82c5f3dc319cfb6b898cc08786e20b5bba575ddaf069d5f57e83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3589f94e59652eb5812d6ff7272cb677eaa66315d9d81ce8b12aae63f0fca41d
[INFO] running `Command { std: "docker" "start" "-a" "3589f94e59652eb5812d6ff7272cb677eaa66315d9d81ce8b12aae63f0fca41d", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.20
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling aho-corasick v0.7.14
[INFO] [stderr]    Compiling regex v1.4.1
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling tokio-cadence v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> examples/async_impl.rs:75:17
[INFO] [stdout]    |
[INFO] [stdout] 75 | /                 &buf[..n]
[INFO] [stdout] 76 | |                     .lines()
[INFO] [stdout] 77 | |                     .filter_map(|line| {
[INFO] [stdout] 78 | |                         line.ok().and_then(|line| {
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | |                         }
[INFO] [stdout] 98 | |                     });
[INFO] [stdout]    | |______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.59s
[INFO] running `Command { std: "docker" "inspect" "3589f94e59652eb5812d6ff7272cb677eaa66315d9d81ce8b12aae63f0fca41d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3589f94e59652eb5812d6ff7272cb677eaa66315d9d81ce8b12aae63f0fca41d", kill_on_drop: false }`
[INFO] [stdout] 3589f94e59652eb5812d6ff7272cb677eaa66315d9d81ce8b12aae63f0fca41d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4200474543a6c2a816c4ee285b814844327460253a2f1c544983892bccf8d118
[INFO] running `Command { std: "docker" "start" "-a" "4200474543a6c2a816c4ee285b814844327460253a2f1c544983892bccf8d118", kill_on_drop: false }`
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> examples/async_impl.rs:75:17
[INFO] [stderr]    |
[INFO] [stderr] 75 | /                 &buf[..n]
[INFO] [stderr] 76 | |                     .lines()
[INFO] [stderr] 77 | |                     .filter_map(|line| {
[INFO] [stderr] 78 | |                         line.ok().and_then(|line| {
[INFO] [stderr] ...  |
[INFO] [stderr] 97 | |                         }
[INFO] [stderr] 98 | |                     });
[INFO] [stderr]    | |______________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tokio-cadence` (example "async_impl") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tokio_cadence-0b2d6af2d354e4f6)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test udp::tests::from_bad_address ... ok
[INFO] [stdout] test unix::tests::from ... ok
[INFO] [stdout] test worker::tests::handle_multi_item ... ok
[INFO] [stdout] test worker::tests::handle_full_buffer ... ok
[INFO] [stdout] test udp::tests::from ... ok
[INFO] [stdout] test worker::tests::handle_single_item ... ok
[INFO] [stdout] test worker::tests::handle_over_buffer_capacity ... ok
[INFO] [stdout] test unix::tests::emit ... ok
[INFO] [stdout] test unix::tests::emit_multi ... ok
[INFO] [stdout] test udp::tests::emit_multi ... ok
[INFO] [stdout] test udp::tests::emit ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tokio-cadence
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/unix.rs - unix::TokioBatchUnixMetricSink (line 67) - compile ... ok
[INFO] [stdout] test src/udp.rs - udp::TokioBatchUdpMetricSink (line 72) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4200474543a6c2a816c4ee285b814844327460253a2f1c544983892bccf8d118", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4200474543a6c2a816c4ee285b814844327460253a2f1c544983892bccf8d118", kill_on_drop: false }`
[INFO] [stdout] 4200474543a6c2a816c4ee285b814844327460253a2f1c544983892bccf8d118