[INFO] fetching crate fractionfree 0.1.4...
[INFO] testing fractionfree-0.1.4 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate fractionfree 0.1.4 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate fractionfree 0.1.4
[INFO] finished tweaking crates.io crate fractionfree 0.1.4
[INFO] tweaked toml for crates.io crate fractionfree 0.1.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fractionfree 0.1.4 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 fractionfree 0.1.4 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] 0b13e4e131064fcf692f3f5589691d8bbbcf015e2e87632e762841024769ddf1
[INFO] running `Command { std: "docker" "start" "-a" "0b13e4e131064fcf692f3f5589691d8bbbcf015e2e87632e762841024769ddf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b13e4e131064fcf692f3f5589691d8bbbcf015e2e87632e762841024769ddf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b13e4e131064fcf692f3f5589691d8bbbcf015e2e87632e762841024769ddf1", kill_on_drop: false }`
[INFO] [stdout] 0b13e4e131064fcf692f3f5589691d8bbbcf015e2e87632e762841024769ddf1
[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] 40e19efad20c93be096d71f6063089c397df9d38622a97a8996e4758c1e6f058
[INFO] running `Command { std: "docker" "start" "-a" "40e19efad20c93be096d71f6063089c397df9d38622a97a8996e4758c1e6f058", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling num-complex v0.4.5
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling ndarray v0.15.6
[INFO] [stderr]    Compiling fractionfree v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.26s
[INFO] running `Command { std: "docker" "inspect" "40e19efad20c93be096d71f6063089c397df9d38622a97a8996e4758c1e6f058", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40e19efad20c93be096d71f6063089c397df9d38622a97a8996e4758c1e6f058", kill_on_drop: false }`
[INFO] [stdout] 40e19efad20c93be096d71f6063089c397df9d38622a97a8996e4758c1e6f058
[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] cab5757bf3797a44977f02b2109dbde64da080f15c3a5e0d259bb55fc69d1514
[INFO] running `Command { std: "docker" "start" "-a" "cab5757bf3797a44977f02b2109dbde64da080f15c3a5e0d259bb55fc69d1514", kill_on_drop: false }`
[INFO] [stderr]    Compiling fractionfree v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "cab5757bf3797a44977f02b2109dbde64da080f15c3a5e0d259bb55fc69d1514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cab5757bf3797a44977f02b2109dbde64da080f15c3a5e0d259bb55fc69d1514", kill_on_drop: false }`
[INFO] [stdout] cab5757bf3797a44977f02b2109dbde64da080f15c3a5e0d259bb55fc69d1514
[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] 123cefd7e6a1598c92f37889dff2fdb43246cfd28b7d5db6928634f298ecd423
[INFO] running `Command { std: "docker" "start" "-a" "123cefd7e6a1598c92f37889dff2fdb43246cfd28b7d5db6928634f298ecd423", 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/fractionfree-b7c82cc162d9b0ac)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::determinant ... ok
[INFO] [stdout] test tests::inverse_dot_eye ... ok
[INFO] [stdout] test tests::normalise ... ok
[INFO] [stdout] test tests::extract_roundtrip ... ok
[INFO] [stdout] test tests::solve_determinate_roundtrip ... ok
[INFO] [stdout] test tests::lu_errors ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fractionfree
[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" "123cefd7e6a1598c92f37889dff2fdb43246cfd28b7d5db6928634f298ecd423", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "123cefd7e6a1598c92f37889dff2fdb43246cfd28b7d5db6928634f298ecd423", kill_on_drop: false }`
[INFO] [stdout] 123cefd7e6a1598c92f37889dff2fdb43246cfd28b7d5db6928634f298ecd423