[INFO] fetching crate mutant-protocol 0.6.2...
[INFO] testing mutant-protocol-0.6.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate mutant-protocol 0.6.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate mutant-protocol 0.6.2
[INFO] finished tweaking crates.io crate mutant-protocol 0.6.2
[INFO] tweaked toml for crates.io crate mutant-protocol 0.6.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mutant-protocol 0.6.2 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] crate crates.io crate mutant-protocol 0.6.2 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 8716042c8f85e2707d9c7ff128023d76059165d7ffdd2eb491ddfeb2e95f66d7
[INFO] running `Command { std: "docker" "start" "-a" "8716042c8f85e2707d9c7ff128023d76059165d7ffdd2eb491ddfeb2e95f66d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8716042c8f85e2707d9c7ff128023d76059165d7ffdd2eb491ddfeb2e95f66d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8716042c8f85e2707d9c7ff128023d76059165d7ffdd2eb491ddfeb2e95f66d7", kill_on_drop: false }`
[INFO] [stdout] 8716042c8f85e2707d9c7ff128023d76059165d7ffdd2eb491ddfeb2e95f66d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 96801f48419590d92e9e6e5b9fc36d254fd9cf0bd09902bf4a5c077511514bf5
[INFO] running `Command { std: "docker" "start" "-a" "96801f48419590d92e9e6e5b9fc36d254fd9cf0bd09902bf4a5c077511514bf5", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling base64 v0.21.7
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling uuid v1.16.0
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling mutant-protocol v0.6.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.11s
[INFO] running `Command { std: "docker" "inspect" "96801f48419590d92e9e6e5b9fc36d254fd9cf0bd09902bf4a5c077511514bf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96801f48419590d92e9e6e5b9fc36d254fd9cf0bd09902bf4a5c077511514bf5", kill_on_drop: false }`
[INFO] [stdout] 96801f48419590d92e9e6e5b9fc36d254fd9cf0bd09902bf4a5c077511514bf5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] cdb0d5dec5caf0dae1c4bf3944e4ec5af1887b2a35c19b5b3e1f6c064c1f0d9b
[INFO] running `Command { std: "docker" "start" "-a" "cdb0d5dec5caf0dae1c4bf3944e4ec5af1887b2a35c19b5b3e1f6c064c1f0d9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling mutant-protocol v0.6.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.62s
[INFO] running `Command { std: "docker" "inspect" "cdb0d5dec5caf0dae1c4bf3944e4ec5af1887b2a35c19b5b3e1f6c064c1f0d9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdb0d5dec5caf0dae1c4bf3944e4ec5af1887b2a35c19b5b3e1f6c064c1f0d9b", kill_on_drop: false }`
[INFO] [stdout] cdb0d5dec5caf0dae1c4bf3944e4ec5af1887b2a35c19b5b3e1f6c064c1f0d9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 8d0126c792df22bd994dc758dfd4a94dccae8fbad1480193d91294b7d5cb0bfc
[INFO] running `Command { std: "docker" "start" "-a" "8d0126c792df22bd994dc758dfd4a94dccae8fbad1480193d91294b7d5cb0bfc", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mutant_protocol-abbd4a0cbb1614f6)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mutant_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" "8d0126c792df22bd994dc758dfd4a94dccae8fbad1480193d91294b7d5cb0bfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d0126c792df22bd994dc758dfd4a94dccae8fbad1480193d91294b7d5cb0bfc", kill_on_drop: false }`
[INFO] [stdout] 8d0126c792df22bd994dc758dfd4a94dccae8fbad1480193d91294b7d5cb0bfc