[INFO] fetching crate rivulets-driver 0.0.0...
[INFO] testing rivulets-driver-0.0.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate rivulets-driver 0.0.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rivulets-driver 0.0.0
[INFO] finished tweaking crates.io crate rivulets-driver 0.0.0
[INFO] tweaked toml for crates.io crate rivulets-driver 0.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rivulets-driver 0.0.0 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 rivulets-driver 0.0.0 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a9d0cc35d1074486d6f119907c72efdb023aa6b5c2d8f86684817fe8c6f63b62
[INFO] running `Command { std: "docker" "start" "-a" "a9d0cc35d1074486d6f119907c72efdb023aa6b5c2d8f86684817fe8c6f63b62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9d0cc35d1074486d6f119907c72efdb023aa6b5c2d8f86684817fe8c6f63b62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9d0cc35d1074486d6f119907c72efdb023aa6b5c2d8f86684817fe8c6f63b62", kill_on_drop: false }`
[INFO] [stdout] a9d0cc35d1074486d6f119907c72efdb023aa6b5c2d8f86684817fe8c6f63b62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 5d83c42d7c8482198978b3d28a04868006a3bd9b0a0dbedaf80a8167fa2a69d9
[INFO] running `Command { std: "docker" "start" "-a" "5d83c42d7c8482198978b3d28a04868006a3bd9b0a0dbedaf80a8167fa2a69d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-std-workspace-core v1.0.1
[INFO] [stderr]    Compiling embedded-io v0.6.1
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling rivulets-driver v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "5d83c42d7c8482198978b3d28a04868006a3bd9b0a0dbedaf80a8167fa2a69d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d83c42d7c8482198978b3d28a04868006a3bd9b0a0dbedaf80a8167fa2a69d9", kill_on_drop: false }`
[INFO] [stdout] 5d83c42d7c8482198978b3d28a04868006a3bd9b0a0dbedaf80a8167fa2a69d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] afbff15db8f6a7ca85f3ab14c585af3a6c105e9ffbb1c91de324eae0f4434363
[INFO] running `Command { std: "docker" "start" "-a" "afbff15db8f6a7ca85f3ab14c585af3a6c105e9ffbb1c91de324eae0f4434363", kill_on_drop: false }`
[INFO] [stderr]    Compiling rivulets-driver v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "afbff15db8f6a7ca85f3ab14c585af3a6c105e9ffbb1c91de324eae0f4434363", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afbff15db8f6a7ca85f3ab14c585af3a6c105e9ffbb1c91de324eae0f4434363", kill_on_drop: false }`
[INFO] [stdout] afbff15db8f6a7ca85f3ab14c585af3a6c105e9ffbb1c91de324eae0f4434363
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 84a59344877eb9510e550c90936339732e5b5c0d0eb2b9907abbf68338bc2a70
[INFO] running `Command { std: "docker" "start" "-a" "84a59344877eb9510e550c90936339732e5b5c0d0eb2b9907abbf68338bc2a70", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rivulets_driver-59839f4dd566bff2)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rivulets_driver
[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] [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" "84a59344877eb9510e550c90936339732e5b5c0d0eb2b9907abbf68338bc2a70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84a59344877eb9510e550c90936339732e5b5c0d0eb2b9907abbf68338bc2a70", kill_on_drop: false }`
[INFO] [stdout] 84a59344877eb9510e550c90936339732e5b5c0d0eb2b9907abbf68338bc2a70