[INFO] fetching crate monarch-butterfly 0.4.1...
[INFO] testing monarch-butterfly-0.4.1 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate monarch-butterfly 0.4.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate monarch-butterfly 0.4.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate monarch-butterfly 0.4.1
[INFO] tweaked toml for crates.io crate monarch-butterfly 0.4.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate monarch-butterfly 0.4.1 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate monarch-butterfly 0.4.1 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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 133d9ccf6fa5ced559a3f041a23bc55690857d8e839cce824a041aa5a8bf3b44
[INFO] running `Command { std: "docker" "start" "-a" "133d9ccf6fa5ced559a3f041a23bc55690857d8e839cce824a041aa5a8bf3b44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "133d9ccf6fa5ced559a3f041a23bc55690857d8e839cce824a041aa5a8bf3b44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "133d9ccf6fa5ced559a3f041a23bc55690857d8e839cce824a041aa5a8bf3b44", kill_on_drop: false }`
[INFO] [stdout] 133d9ccf6fa5ced559a3f041a23bc55690857d8e839cce824a041aa5a8bf3b44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8cf004684601860fc6acf847cc7e59dda62f71e8761fbfe8625cf0d35a4ca0ad
[INFO] running `Command { std: "docker" "start" "-a" "8cf004684601860fc6acf847cc7e59dda62f71e8761fbfe8625cf0d35a4ca0ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.11
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling monarch-derive v0.4.1
[INFO] [stderr]    Compiling monarch-butterfly v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `monarch-butterfly` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2025-10-28-x86_64-unknown-linux-gnu/bin/rustc --crate-name monarch_butterfly --edition=2021 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=99df5cac0c3a4b7f -C extra-filename=-f15150670f414e59 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern monarch_derive=/opt/rustwide/target/debug/deps/libmonarch_derive-ba7fffb9dfdb01b8.so --extern num_complex=/opt/rustwide/target/debug/deps/libnum_complex-9f86ea6cf14aa24f.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-b4bc3b9f04b57e8c.rmeta --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "8cf004684601860fc6acf847cc7e59dda62f71e8761fbfe8625cf0d35a4ca0ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cf004684601860fc6acf847cc7e59dda62f71e8761fbfe8625cf0d35a4ca0ad", kill_on_drop: false }`
[INFO] [stdout] 8cf004684601860fc6acf847cc7e59dda62f71e8761fbfe8625cf0d35a4ca0ad