[INFO] fetching crate mqtt-codec 0.3.0...
[INFO] testing mqtt-codec-0.3.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate mqtt-codec 0.3.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate mqtt-codec 0.3.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mqtt-codec 0.3.0
[INFO] finished tweaking crates.io crate mqtt-codec 0.3.0
[INFO] tweaked toml for crates.io crate mqtt-codec 0.3.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9776dcefabc59675478b393916539a099e80a5f9f26727c56718b7cc9dc8ff34
[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" "9776dcefabc59675478b393916539a099e80a5f9f26727c56718b7cc9dc8ff34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9776dcefabc59675478b393916539a099e80a5f9f26727c56718b7cc9dc8ff34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9776dcefabc59675478b393916539a099e80a5f9f26727c56718b7cc9dc8ff34", kill_on_drop: false }`
[INFO] [stdout] 9776dcefabc59675478b393916539a099e80a5f9f26727c56718b7cc9dc8ff34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c94452a235af60208f451f75f91c91a949e867a450ac848b3f83744d5a62d784
[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" "c94452a235af60208f451f75f91c91a949e867a450ac848b3f83744d5a62d784", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio v0.2.24
[INFO] [stderr]    Compiling tokio-util v0.2.0
[INFO] [stderr]    Compiling actix-codec v0.2.0
[INFO] [stderr]    Compiling mqtt-codec v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `BytesMut::split_to` that must be used
[INFO] [stdout]   --> src/codec/mod.rs:90:29
[INFO] [stdout]    |
[INFO] [stdout] 90 | ...                   src.split_to(consumed + 1);
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: consider BytesMut::advance if you don't need the other half
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.03s
[INFO] running `Command { std: "docker" "inspect" "c94452a235af60208f451f75f91c91a949e867a450ac848b3f83744d5a62d784", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c94452a235af60208f451f75f91c91a949e867a450ac848b3f83744d5a62d784", kill_on_drop: false }`
[INFO] [stdout] c94452a235af60208f451f75f91c91a949e867a450ac848b3f83744d5a62d784
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7bde0692d3ef84876964bf4849ef26cba5a6387db001b601170a9e3311e8eb4
[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" "e7bde0692d3ef84876964bf4849ef26cba5a6387db001b601170a9e3311e8eb4", kill_on_drop: false }`
[INFO] [stderr]    Compiling mqtt-codec v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `BytesMut::split_to` that must be used
[INFO] [stdout]   --> src/codec/mod.rs:90:29
[INFO] [stdout]    |
[INFO] [stdout] 90 | ...                   src.split_to(consumed + 1);
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: consider BytesMut::advance if you don't need the other half
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `bytes::BytesMut::split_to` that must be used
[INFO] [stdout]   --> src/codec/mod.rs:90:29
[INFO] [stdout]    |
[INFO] [stdout] 90 | ...                   src.split_to(consumed + 1);
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: consider BytesMut::advance if you don't need the other half
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.54s
[INFO] running `Command { std: "docker" "inspect" "e7bde0692d3ef84876964bf4849ef26cba5a6387db001b601170a9e3311e8eb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7bde0692d3ef84876964bf4849ef26cba5a6387db001b601170a9e3311e8eb4", kill_on_drop: false }`
[INFO] [stdout] e7bde0692d3ef84876964bf4849ef26cba5a6387db001b601170a9e3311e8eb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 737c40014258750f5980d4f23ca89e64015a70137c10e80a9a33db55b2c31e46
[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" "737c40014258750f5980d4f23ca89e64015a70137c10e80a9a33db55b2c31e46", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: unused return value of `BytesMut::split_to` that must be used
[INFO] [stdout] running 19 tests
[INFO] [stderr]   --> src/codec/mod.rs:90:29
[INFO] [stdout] test codec::decode::tests::test_decode_connect_packets ... ok
[INFO] [stderr]    |
[INFO] [stdout] test codec::encode::tests::test_encode_fixed_header ... ok
[INFO] [stderr] 90 | ...                   src.split_to(consumed + 1);
[INFO] [stdout] test codec::encode::tests::test_encode_ping_packets ... ok
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] test codec::encode::tests::test_encode_publish_packets ... ok
[INFO] [stderr]    |
[INFO] [stdout] test codec::encode::tests::test_encode_variable_length ... ok
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] test codec::tests::test_max_size ... ok
[INFO] [stderr]    = note: consider BytesMut::advance if you don't need the other half
[INFO] [stdout] test topic::tests::test_level ... ok
[INFO] [stderr] 
[INFO] [stdout] test topic::tests::test_multi_wildcard_topic ... ok
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stdout] test topic::tests::test_parse_topic ... ok
[INFO] [stderr] 
[INFO] [stdout] test topic::tests::test_single_wildcard_topic ... ok
[INFO] [stderr] warning: unused return value of `bytes::BytesMut::split_to` that must be used
[INFO] [stdout] test topic::tests::test_write_topic ... ok
[INFO] [stderr]   --> src/codec/mod.rs:90:29
[INFO] [stdout] test codec::decode::tests::test_decode_variable_length ... ok
[INFO] [stderr]    |
[INFO] [stdout] test codec::decode::tests::test_decode_ping_packets ... ok
[INFO] [stderr] 90 | ...                   src.split_to(consumed + 1);
[INFO] [stdout] test topic::tests::test_valid_topic ... ok
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] test codec::decode::tests::test_decode_subscribe_packets ... ok
[INFO] [stderr]    |
[INFO] [stdout] test topic::tests::test_match_topic ... ok
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] test codec::decode::tests::test_decode_publish_packets ... ok
[INFO] [stderr]    = note: consider BytesMut::advance if you don't need the other half
[INFO] [stdout] test codec::encode::tests::test_encode_connect_packets ... ok
[INFO] [stderr] 
[INFO] [stdout] test codec::encode::tests::test_encode_subscribe_packets ... ok
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mqtt_codec-6eda525f0fabbb96
[INFO] [stderr]    Doc-tests mqtt-codec
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "737c40014258750f5980d4f23ca89e64015a70137c10e80a9a33db55b2c31e46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "737c40014258750f5980d4f23ca89e64015a70137c10e80a9a33db55b2c31e46", kill_on_drop: false }`
[INFO] [stdout] 737c40014258750f5980d4f23ca89e64015a70137c10e80a9a33db55b2c31e46