[INFO] fetching crate mqtt_packet_3_5 0.2.2...
[INFO] testing mqtt_packet_3_5-0.2.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate mqtt_packet_3_5 0.2.2 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate mqtt_packet_3_5 0.2.2
[INFO] finished tweaking crates.io crate mqtt_packet_3_5 0.2.2
[INFO] tweaked toml for crates.io crate mqtt_packet_3_5 0.2.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mqtt_packet_3_5 0.2.2 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] Updating crates.io index
[INFO] [stderr] Locking 7 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88b93ed6aeb347943633a321afab98f9aa159a35d27d07086225c7bee57a090e
[INFO] running `Command { std: "docker" "start" "-a" "88b93ed6aeb347943633a321afab98f9aa159a35d27d07086225c7bee57a090e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88b93ed6aeb347943633a321afab98f9aa159a35d27d07086225c7bee57a090e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88b93ed6aeb347943633a321afab98f9aa159a35d27d07086225c7bee57a090e", kill_on_drop: false }`
[INFO] [stdout] 88b93ed6aeb347943633a321afab98f9aa159a35d27d07086225c7bee57a090e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a0feddc8b69ccf5b4fa1b924e952c77152b93ccd15f869763180b54d25ee2ad
[INFO] running `Command { std: "docker" "start" "-a" "5a0feddc8b69ccf5b4fa1b924e952c77152b93ccd15f869763180b54d25ee2ad", kill_on_drop: false }`
[INFO] [stderr] Compiling mqtt_packet_3_5 v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout] --> src/byte_reader.rs:225:28
[INFO] [stdout] |
[INFO] [stdout] 225 | pub fn read_properties(&mut self) -> Res