[INFO] crate mqtt-codec 0.3.0 is already in cache
[INFO] checking mqtt-codec-0.3.0 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate mqtt-codec 0.3.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate mqtt-codec 0.3.0 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ae44d7606e36580d3f86dc80207d4bbc46a059d39c7eff7a8f404a7272529e7a
[INFO] running `"docker" "start" "-a" "ae44d7606e36580d3f86dc80207d4bbc46a059d39c7eff7a8f404a7272529e7a"`
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking bytestring v0.1.5
[INFO] [stderr]     Checking tokio v0.2.20
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking actix-codec v0.2.0
[INFO] [stderr]     Checking mqtt-codec v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused return value of `bytes::bytes_mut::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: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: consider BytesMut::advance if you don't need the other half
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `bytes::bytes_mut::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: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: consider BytesMut::advance if you don't need the other half
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.79s
[INFO] running `"docker" "inspect" "ae44d7606e36580d3f86dc80207d4bbc46a059d39c7eff7a8f404a7272529e7a"`
[INFO] running `"docker" "rm" "-f" "ae44d7606e36580d3f86dc80207d4bbc46a059d39c7eff7a8f404a7272529e7a"`
[INFO] [stdout] ae44d7606e36580d3f86dc80207d4bbc46a059d39c7eff7a8f404a7272529e7a