[INFO] fetching crate mqtt-codec 0.3.0...
[INFO] testing mqtt-codec-0.3.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate mqtt-codec 0.3.0 into /workspace/builds/worker-4-tc1/source
[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-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mqtt-codec 0.3.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding actix-codec v0.2.0 (available: v0.5.2)
[INFO] [stderr]       Adding bitflags v1.3.2 (available: v2.11.1)
[INFO] [stderr]       Adding bytes v0.5.6 (available: v1.11.1)
[INFO] [stderr]       Adding bytestring v0.1.5 (available: v1.5.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bytestring v0.1.5
[INFO] [stderr]   Downloaded actix-codec v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 687d9cca7c5334190e7293ada5ce478719130199166349fe3f30ed12550dcf8e
[INFO] running `Command { std: "docker" "start" "-a" "687d9cca7c5334190e7293ada5ce478719130199166349fe3f30ed12550dcf8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "687d9cca7c5334190e7293ada5ce478719130199166349fe3f30ed12550dcf8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "687d9cca7c5334190e7293ada5ce478719130199166349fe3f30ed12550dcf8e", kill_on_drop: false }`
[INFO] [stdout] 687d9cca7c5334190e7293ada5ce478719130199166349fe3f30ed12550dcf8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5705ace9ccc030e32394bddc4f3471d4b39316c8923bdf8d564a4f4251663314
[INFO] running `Command { std: "docker" "start" "-a" "5705ace9ccc030e32394bddc4f3471d4b39316c8923bdf8d564a4f4251663314", kill_on_drop: false }`
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling futures-sink v0.3.32
[INFO] [stderr]    Compiling futures-core v0.3.32
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling bytestring v0.1.5
[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: trait `WriteTopicExt` is never used
[INFO] [stdout]    --> src/topic.rs:307:11
[INFO] [stdout]     |
[INFO] [stdout] 307 | pub trait WriteTopicExt: io::Write {
[INFO] [stdout]     |           ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[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: consider BytesMut::advance if you don't need the other half
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 90 |                             let _ = src.split_to(consumed + 1);
[INFO] [stdout]    |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.30s
[INFO] running `Command { std: "docker" "inspect" "5705ace9ccc030e32394bddc4f3471d4b39316c8923bdf8d564a4f4251663314", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5705ace9ccc030e32394bddc4f3471d4b39316c8923bdf8d564a4f4251663314", kill_on_drop: false }`
[INFO] [stdout] 5705ace9ccc030e32394bddc4f3471d4b39316c8923bdf8d564a4f4251663314
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc01bd19c8adf5c7ef49946d81ca4d3d0acdb4d7d9e5dc2c336ebcfc459a155d
[INFO] running `Command { std: "docker" "start" "-a" "dc01bd19c8adf5c7ef49946d81ca4d3d0acdb4d7d9e5dc2c336ebcfc459a155d", kill_on_drop: false }`
[INFO] [stdout] warning: trait `WriteTopicExt` is never used
[INFO] [stdout]    --> src/topic.rs:307:11
[INFO] [stdout]     |
[INFO] [stdout] 307 | pub trait WriteTopicExt: io::Write {
[INFO] [stdout]     |           ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[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: consider BytesMut::advance if you don't need the other half
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 90 |                             let _ = src.split_to(consumed + 1);
[INFO] [stdout]    |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mqtt-codec v0.3.0 (/opt/rustwide/workdir)
[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: consider BytesMut::advance if you don't need the other half
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 90 |                             let _ = src.split_to(consumed + 1);
[INFO] [stdout]    |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `Command { std: "docker" "inspect" "dc01bd19c8adf5c7ef49946d81ca4d3d0acdb4d7d9e5dc2c336ebcfc459a155d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc01bd19c8adf5c7ef49946d81ca4d3d0acdb4d7d9e5dc2c336ebcfc459a155d", kill_on_drop: false }`
[INFO] [stdout] dc01bd19c8adf5c7ef49946d81ca4d3d0acdb4d7d9e5dc2c336ebcfc459a155d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4ddb2586e23e3d998175bb38f146878a1bec755d7251b08a6200a2b0052ca9f0
[INFO] running `Command { std: "docker" "start" "-a" "4ddb2586e23e3d998175bb38f146878a1bec755d7251b08a6200a2b0052ca9f0", kill_on_drop: false }`
[INFO] [stderr] warning: trait `WriteTopicExt` is never used
[INFO] [stderr]    --> src/topic.rs:307:11
[INFO] [stderr]     |
[INFO] [stderr] 307 | pub trait WriteTopicExt: io::Write {
[INFO] [stderr]     |           ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `BytesMut::split_to` that must be used
[INFO] [stderr]   --> src/codec/mod.rs:90:29
[INFO] [stderr]    |
[INFO] [stderr] 90 | ...                   src.split_to(consumed + 1);
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider BytesMut::advance if you don't need the other half
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 90 |                             let _ = src.split_to(consumed + 1);
[INFO] [stderr]    |                             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `bytes::BytesMut::split_to` that must be used
[INFO] [stderr]   --> src/codec/mod.rs:90:29
[INFO] [stderr]    |
[INFO] [stderr] 90 | ...                   src.split_to(consumed + 1);
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider BytesMut::advance if you don't need the other half
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 90 |                             let _ = src.split_to(consumed + 1);
[INFO] [stderr]    |                             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `mqtt-codec` (lib) generated 2 warnings
[INFO] [stderr] warning: `mqtt-codec` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mqtt_codec-5ce775f16a220637)
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test codec::decode::tests::test_decode_subscribe_packets ... ok
[INFO] [stdout] test codec::encode::tests::test_encode_connect_packets ... ok
[INFO] [stdout] test codec::encode::tests::test_encode_fixed_header ... ok
[INFO] [stdout] test codec::encode::tests::test_encode_publish_packets ... ok
[INFO] [stdout] test codec::encode::tests::test_encode_ping_packets ... ok
[INFO] [stdout] test codec::encode::tests::test_encode_subscribe_packets ... ok
[INFO] [stdout] test codec::decode::tests::test_decode_ping_packets ... ok
[INFO] [stdout] test topic::tests::test_level ... ok
[INFO] [stdout] test topic::tests::test_multi_wildcard_topic ... ok
[INFO] [stdout] test topic::tests::test_parse_topic ... ok
[INFO] [stdout] test codec::decode::tests::test_decode_connect_packets ... ok
[INFO] [stdout] test topic::tests::test_valid_topic ... ok
[INFO] [stdout] test codec::decode::tests::test_decode_publish_packets ... ok
[INFO] [stdout] test codec::tests::test_max_size ... ok
[INFO] [stdout] test codec::encode::tests::test_encode_variable_length ... ok
[INFO] [stdout] test topic::tests::test_single_wildcard_topic ... ok
[INFO] [stdout] test topic::tests::test_write_topic ... ok
[INFO] [stdout] test codec::decode::tests::test_decode_variable_length ... ok
[INFO] [stdout] test topic::tests::test_match_topic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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" "4ddb2586e23e3d998175bb38f146878a1bec755d7251b08a6200a2b0052ca9f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ddb2586e23e3d998175bb38f146878a1bec755d7251b08a6200a2b0052ca9f0", kill_on_drop: false }`
[INFO] [stdout] 4ddb2586e23e3d998175bb38f146878a1bec755d7251b08a6200a2b0052ca9f0