[INFO] fetching crate shrew-cuda 0.1.0...
[INFO] testing shrew-cuda-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate shrew-cuda 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate shrew-cuda 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate shrew-cuda 0.1.0
[INFO] tweaked toml for crates.io crate shrew-cuda 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate shrew-cuda 0.1.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate shrew-cuda 0.1.0 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-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c2bcff34a3b03eabe4dd51830288d3aa431511938cd0c54ad26a7d55d28b928
[INFO] running `Command { std: "docker" "start" "-a" "3c2bcff34a3b03eabe4dd51830288d3aa431511938cd0c54ad26a7d55d28b928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c2bcff34a3b03eabe4dd51830288d3aa431511938cd0c54ad26a7d55d28b928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c2bcff34a3b03eabe4dd51830288d3aa431511938cd0c54ad26a7d55d28b928", kill_on_drop: false }`
[INFO] [stdout] 3c2bcff34a3b03eabe4dd51830288d3aa431511938cd0c54ad26a7d55d28b928
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44a82bf680d6c95e75d6ba061ad47db6c441dc640b66e7529f848e73c65b0322
[INFO] running `Command { std: "docker" "start" "-a" "44a82bf680d6c95e75d6ba061ad47db6c441dc640b66e7529f848e73c65b0322", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.23
[INFO] [stderr]    Compiling libc v0.2.182
[INFO] [stderr]    Compiling zerocopy v0.8.39
[INFO] [stderr]    Compiling cudarc v0.12.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling libloading v0.8.9
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling syn v2.0.115
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling zerocopy-derive v0.8.39
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rand_distr v0.4.3
[INFO] [stderr]    Compiling shrew-core v0.1.0
[INFO] [stderr]    Compiling shrew-cuda v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.68s
[INFO] running `Command { std: "docker" "inspect" "44a82bf680d6c95e75d6ba061ad47db6c441dc640b66e7529f848e73c65b0322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44a82bf680d6c95e75d6ba061ad47db6c441dc640b66e7529f848e73c65b0322", kill_on_drop: false }`
[INFO] [stdout] 44a82bf680d6c95e75d6ba061ad47db6c441dc640b66e7529f848e73c65b0322
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bedef06ebcc73547a610ab0fa033a7efe0122ad43a68505ea078bda168034fe1
[INFO] running `Command { std: "docker" "start" "-a" "bedef06ebcc73547a610ab0fa033a7efe0122ad43a68505ea078bda168034fe1", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling bitflags v2.11.0
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling reborrow v0.5.5
[INFO] [stderr]    Compiling dyn-stack-macros v0.1.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling pulp v0.21.5
[INFO] [stderr]    Compiling seq-macro v0.3.6
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling bytemuck_derive v1.10.2
[INFO] [stderr]    Compiling raw-cpuid v11.6.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling rand_distr v0.4.3
[INFO] [stderr]    Compiling bytemuck v1.25.0
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling dyn-stack v0.13.2
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling shrew-core v0.1.0
[INFO] [stderr]    Compiling shrew-optim v0.1.0
[INFO] [stderr]    Compiling shrew-cuda v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling gemm-common v0.18.2
[INFO] [stderr]    Compiling gemm-f32 v0.18.2
[INFO] [stderr]    Compiling gemm-c64 v0.18.2
[INFO] [stderr]    Compiling gemm-f64 v0.18.2
[INFO] [stderr]    Compiling gemm-c32 v0.18.2
[INFO] [stderr]    Compiling gemm-f16 v0.18.2
[INFO] [stderr]    Compiling gemm v0.18.2
[INFO] [stderr]    Compiling shrew-cpu v0.1.0
[INFO] [stderr]    Compiling shrew-nn v0.1.0
[INFO] [stdout] error[E0433]: cannot find module or crate `shrew` in this scope
[INFO] [stdout]    --> tests/mixed_precision_tests.rs:306:22
[INFO] [stdout]     |
[INFO] [stdout] 306 |         let config = shrew::distributed::LossScaleConfig {
[INFO] [stdout]     |                      ^^^^^ use of unresolved module or unlinked crate `shrew`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `shrew`, use `cargo add shrew` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `shrew` in this scope
[INFO] [stdout]    --> tests/mixed_precision_tests.rs:311:13
[INFO] [stdout]     |
[INFO] [stdout] 311 |             shrew::distributed::MixedPrecisionTrainer::new(linear, optimizer, DType::F16, config);
[INFO] [stdout]     |             ^^^^^ use of unresolved module or unlinked crate `shrew`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `shrew`, use `cargo add shrew` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `shrew-cuda` (test "mixed_precision_tests") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "bedef06ebcc73547a610ab0fa033a7efe0122ad43a68505ea078bda168034fe1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bedef06ebcc73547a610ab0fa033a7efe0122ad43a68505ea078bda168034fe1", kill_on_drop: false }`
[INFO] [stdout] bedef06ebcc73547a610ab0fa033a7efe0122ad43a68505ea078bda168034fe1
