[INFO] fetching crate zenu-cuda-kernel-sys 0.1.0...
[INFO] testing zenu-cuda-kernel-sys-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate zenu-cuda-kernel-sys 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate zenu-cuda-kernel-sys 0.1.0
[INFO] finished tweaking crates.io crate zenu-cuda-kernel-sys 0.1.0
[INFO] tweaked toml for crates.io crate zenu-cuda-kernel-sys 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zenu-cuda-kernel-sys 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 47 packages to latest compatible versions
[INFO] [stderr]       Adding bindgen v0.69.5 (available: v0.72.1)
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 59fbaeb450b35be768d5ca1ff54927c38fddcafe2091a97d591e60cb6f401131
[INFO] running `Command { std: "docker" "start" "-a" "59fbaeb450b35be768d5ca1ff54927c38fddcafe2091a97d591e60cb6f401131", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59fbaeb450b35be768d5ca1ff54927c38fddcafe2091a97d591e60cb6f401131", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59fbaeb450b35be768d5ca1ff54927c38fddcafe2091a97d591e60cb6f401131", kill_on_drop: false }`
[INFO] [stdout] 59fbaeb450b35be768d5ca1ff54927c38fddcafe2091a97d591e60cb6f401131
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 59354fb26a432e4896b505a0c941d48e905beec0466f74c9de2352e32414950d
[INFO] running `Command { std: "docker" "start" "-a" "59354fb26a432e4896b505a0c941d48e905beec0466f74c9de2352e32414950d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling bitflags v2.11.1
[INFO] [stderr]    Compiling bindgen v0.69.5
[INFO] [stderr]    Compiling home v0.5.12
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling zenu-cuda-kernel-sys v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: zenu-cuda-kernel-sys@0.1.0: Compiler family detection failed due to error: ToolNotFound: failed to find tool "nvcc": No such file or directory (os error 2)
[INFO] [stderr] error: failed to run custom build command for `zenu-cuda-kernel-sys v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/zenu-cuda-kernel-sys-3ef4d815e0036137/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-changed=kernel/array_scalar.cu
[INFO] [stderr]   cargo:rerun-if-changed=kernel/element_wise.cu
[INFO] [stderr]   cargo:rerun-if-changed=kernel/memory_access.cu
[INFO] [stderr]   cargo:rerun-if-changed=kernel/array_array.cu
[INFO] [stderr]   cargo:rerun-if-changed=kernel/activations.cu
[INFO] [stderr]   cargo:rerun-if-changed=kernel/kernel.h
[INFO] [stderr]   cargo:rerun-if-changed=build.rs
[INFO] [stderr]   cargo:rerun-if-env-changed=CC_FORCE_DISABLE
[INFO] [stderr]   CC_FORCE_DISABLE = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CXX_x86_64-unknown-linux-gnu
[INFO] [stderr]   CXX_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CXX_x86_64_unknown_linux_gnu
[INFO] [stderr]   CXX_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=HOST_CXX
[INFO] [stderr]   HOST_CXX = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CXX
[INFO] [stderr]   CXX = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CC_ENABLE_DEBUG_OUTPUT
[INFO] [stderr]   cargo:rerun-if-env-changed=NVCC_x86_64-unknown-linux-gnu
[INFO] [stderr]   NVCC_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=NVCC_x86_64_unknown_linux_gnu
[INFO] [stderr]   NVCC_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=HOST_NVCC
[INFO] [stderr]   HOST_NVCC = None
[INFO] [stderr]   cargo:rerun-if-env-changed=NVCC
[INFO] [stderr]   NVCC = None
[INFO] [stderr]   cargo:warning=Compiler family detection failed due to error: ToolNotFound: failed to find tool "nvcc": No such file or directory (os error 2)
[INFO] [stderr]   cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
[INFO] [stderr]   CRATE_CC_NO_DEFAULTS = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CXXFLAGS
[INFO] [stderr]   CXXFLAGS = None
[INFO] [stderr]   cargo:rerun-if-env-changed=HOST_CXXFLAGS
[INFO] [stderr]   HOST_CXXFLAGS = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CXXFLAGS_x86_64_unknown_linux_gnu
[INFO] [stderr]   CXXFLAGS_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CXXFLAGS_x86_64-unknown-linux-gnu
[INFO] [stderr]   CXXFLAGS_x86_64-unknown-linux-gnu = None
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   error occurred in cc-rs: failed to find tool "nvcc": No such file or directory (os error 2)
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] running `Command { std: "docker" "inspect" "59354fb26a432e4896b505a0c941d48e905beec0466f74c9de2352e32414950d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59354fb26a432e4896b505a0c941d48e905beec0466f74c9de2352e32414950d", kill_on_drop: false }`
[INFO] [stdout] 59354fb26a432e4896b505a0c941d48e905beec0466f74c9de2352e32414950d
