[INFO] fetching crate matchbox_protocol 0.12.0...
[INFO] testing matchbox_protocol-0.12.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate matchbox_protocol 0.12.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate matchbox_protocol 0.12.0
[INFO] finished tweaking crates.io crate matchbox_protocol 0.12.0
[INFO] tweaked toml for crates.io crate matchbox_protocol 0.12.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate matchbox_protocol 0.12.0 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] crate crates.io crate matchbox_protocol 0.12.0 already has a lockfile, it will not be regenerated
[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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c6311993248e35228db2746b380a513fb7d715904d106ac6ec4c4d120f89c35e
[INFO] running `Command { std: "docker" "start" "-a" "c6311993248e35228db2746b380a513fb7d715904d106ac6ec4c4d120f89c35e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6311993248e35228db2746b380a513fb7d715904d106ac6ec4c4d120f89c35e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6311993248e35228db2746b380a513fb7d715904d106ac6ec4c4d120f89c35e", kill_on_drop: false }`
[INFO] [stdout] c6311993248e35228db2746b380a513fb7d715904d106ac6ec4c4d120f89c35e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9d01c71a29d20b100f2cc066c3e8b84266d6d5f90ffb8c7a228ae019c0e21b01
[INFO] running `Command { std: "docker" "start" "-a" "9d01c71a29d20b100f2cc066c3e8b84266d6d5f90ffb8c7a228ae019c0e21b01", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling derive_more-impl v2.0.1
[INFO] [stderr]    Compiling derive_more v2.0.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling uuid v1.16.0
[INFO] [stderr]    Compiling matchbox_protocol v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.63s
[INFO] running `Command { std: "docker" "inspect" "9d01c71a29d20b100f2cc066c3e8b84266d6d5f90ffb8c7a228ae019c0e21b01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d01c71a29d20b100f2cc066c3e8b84266d6d5f90ffb8c7a228ae019c0e21b01", kill_on_drop: false }`
[INFO] [stdout] 9d01c71a29d20b100f2cc066c3e8b84266d6d5f90ffb8c7a228ae019c0e21b01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0dae7e3292c0e75e894f55974b98a101d3e68f414f991f0ed0d8f3640a872918
[INFO] running `Command { std: "docker" "start" "-a" "0dae7e3292c0e75e894f55974b98a101d3e68f414f991f0ed0d8f3640a872918", kill_on_drop: false }`
[INFO] [stderr]    Compiling matchbox_protocol v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "0dae7e3292c0e75e894f55974b98a101d3e68f414f991f0ed0d8f3640a872918", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dae7e3292c0e75e894f55974b98a101d3e68f414f991f0ed0d8f3640a872918", kill_on_drop: false }`
[INFO] [stdout] 0dae7e3292c0e75e894f55974b98a101d3e68f414f991f0ed0d8f3640a872918
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1017d7856b5f4111da37f06940695142622284b28e8b4e06e6bc5e450eca1d26
[INFO] running `Command { std: "docker" "start" "-a" "1017d7856b5f4111da37f06940695142622284b28e8b4e06e6bc5e450eca1d26", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/matchbox_protocol-e9e775a76f292d07)
[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] [stderr]    Doc-tests matchbox_protocol
[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" "1017d7856b5f4111da37f06940695142622284b28e8b4e06e6bc5e450eca1d26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1017d7856b5f4111da37f06940695142622284b28e8b4e06e6bc5e450eca1d26", kill_on_drop: false }`
[INFO] [stdout] 1017d7856b5f4111da37f06940695142622284b28e8b4e06e6bc5e450eca1d26