[INFO] fetching crate poston 0.7.1...
[INFO] testing poston-0.7.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate poston 0.7.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate poston 0.7.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate poston 0.7.1
[INFO] finished tweaking crates.io crate poston 0.7.1
[INFO] tweaked toml for crates.io crate poston 0.7.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate poston 0.7.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] a27da05df0c07468986416b7f0c2950033529dfb8da4897925c4358b6a8e2ffc
[INFO] running `Command { std: "docker" "start" "-a" "a27da05df0c07468986416b7f0c2950033529dfb8da4897925c4358b6a8e2ffc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a27da05df0c07468986416b7f0c2950033529dfb8da4897925c4358b6a8e2ffc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a27da05df0c07468986416b7f0c2950033529dfb8da4897925c4358b6a8e2ffc", kill_on_drop: false }`
[INFO] [stdout] a27da05df0c07468986416b7f0c2950033529dfb8da4897925c4358b6a8e2ffc
[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" "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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb6f9e44c0c284a87332c22ffc4e8e3221c982c1fec3727be93f7b955cbf207b
[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" "bb6f9e44c0c284a87332c22ffc4e8e3221c982c1fec3727be93f7b955cbf207b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]    Compiling instant v0.1.6
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling rmp v0.8.9
[INFO] [stderr]    Compiling crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling backoff v0.2.1
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling rmp-serde v0.14.3
[INFO] [stderr]    Compiling poston v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.96s
[INFO] running `Command { std: "docker" "inspect" "bb6f9e44c0c284a87332c22ffc4e8e3221c982c1fec3727be93f7b955cbf207b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb6f9e44c0c284a87332c22ffc4e8e3221c982c1fec3727be93f7b955cbf207b", kill_on_drop: false }`
[INFO] [stdout] bb6f9e44c0c284a87332c22ffc4e8e3221c982c1fec3727be93f7b955cbf207b
[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" "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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0dd8164b5ba500111241dc04e910e77bc1bd2a220805f93e7a8a78fa0135f98e
[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" "0dd8164b5ba500111241dc04e910e77bc1bd2a220805f93e7a8a78fa0135f98e", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling poston v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 26.00s
[INFO] running `Command { std: "docker" "inspect" "0dd8164b5ba500111241dc04e910e77bc1bd2a220805f93e7a8a78fa0135f98e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dd8164b5ba500111241dc04e910e77bc1bd2a220805f93e7a8a78fa0135f98e", kill_on_drop: false }`
[INFO] [stdout] 0dd8164b5ba500111241dc04e910e77bc1bd2a220805f93e7a8a78fa0135f98e
[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" "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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f7b0741b63db7ff4e84aa7debc8c55dd51dfc493e9477271522a2a3d3177932c
[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" "f7b0741b63db7ff4e84aa7debc8c55dd51dfc493e9477271522a2a3d3177932c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/poston-0bf6708ca27cac0d
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test buffer::test_pack_record::it_should_make_forward_mode_buffer ... ok
[INFO] [stdout] test time_pack::test::it_should_pack_to_event_time_format ... ok
[INFO] [stdout] test queue::tests::test_push_flush ... ok
[INFO] [stdout] test emitter::test::emit_consume_queeu ... ok
[INFO] [stdout] test buffer::unpack_response::it_should_unpack_as_ack_reply ... ok
[INFO] [stdout] test worker::tests::test_handle_message_flushed ... ok
[INFO] [stdout] test worker::tests::test_handle_message_queued ... ok
[INFO] [stdout] test worker::tests::test_handle_message_terminated ... ok
[INFO] [stdout] test worker::tests::test_start_worker_terminate ... ok
[INFO] [stdout] test buffer::test_take::it_should_move_elements_to_passed_buffer ... ok
[INFO] [stdout] test emitter::test::emit_consume_queue_with_error_stream ... ok
[INFO] [stdout] test worker::tests::worker_create_should_return_err_when_the_connection_open_is_failed ... ok
[INFO] [stdout] test connect::tests::connect_giveup ... ok
[INFO] [stdout] test connect::tests::connect ... ok
[INFO] [stdout] test connect::tests::read_and_write ... ok
[INFO] [stdout] test connect::tests::reconnect ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests poston
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f7b0741b63db7ff4e84aa7debc8c55dd51dfc493e9477271522a2a3d3177932c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7b0741b63db7ff4e84aa7debc8c55dd51dfc493e9477271522a2a3d3177932c", kill_on_drop: false }`
[INFO] [stdout] f7b0741b63db7ff4e84aa7debc8c55dd51dfc493e9477271522a2a3d3177932c