[INFO] fetching crate tfhe-cuda-backend 0.14.0...
[INFO] testing tfhe-cuda-backend-0.14.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate tfhe-cuda-backend 0.14.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate tfhe-cuda-backend 0.14.0
[INFO] finished tweaking crates.io crate tfhe-cuda-backend 0.14.0
[INFO] tweaked toml for crates.io crate tfhe-cuda-backend 0.14.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tfhe-cuda-backend 0.14.0 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 tfhe-cuda-backend 0.14.0 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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f8743b46c24a40226933eb3062d9d12126b2bb7a76fa1bee2e42132ca62a5eb
[INFO] running `Command { std: "docker" "start" "-a" "6f8743b46c24a40226933eb3062d9d12126b2bb7a76fa1bee2e42132ca62a5eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f8743b46c24a40226933eb3062d9d12126b2bb7a76fa1bee2e42132ca62a5eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f8743b46c24a40226933eb3062d9d12126b2bb7a76fa1bee2e42132ca62a5eb", kill_on_drop: false }`
[INFO] [stdout] 6f8743b46c24a40226933eb3062d9d12126b2bb7a76fa1bee2e42132ca62a5eb
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2bd447a422c06a707f8c7a0ee48db8a98bfdcd0d5f1793a8293a9cfb6fe7703a
[INFO] running `Command { std: "docker" "start" "-a" "2bd447a422c06a707f8c7a0ee48db8a98bfdcd0d5f1793a8293a9cfb6fe7703a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.185
[INFO] [stderr]    Compiling bitflags v2.11.1
[INFO] [stderr]    Compiling cc v1.2.60
[INFO] [stderr]    Compiling cmake v0.1.58
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling bindgen v0.71.1
[INFO] [stderr]    Compiling tfhe-cuda-backend v0.14.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `tfhe-cuda-backend v0.14.0 (/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/tfhe-cuda-backend-43aac7a904622afd/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   Build tfhe-cuda-backend
[INFO] [stderr]   cargo::rerun-if-changed=cuda/include
[INFO] [stderr]   cargo::rerun-if-changed=cuda/src
[INFO] [stderr]   cargo::rerun-if-changed=cuda/tests_and_benchmarks
[INFO] [stderr]   cargo::rerun-if-changed=cuda/CMakeLists.txt
[INFO] [stderr]   cargo::rerun-if-changed=src
[INFO] [stderr]   CMAKE_TOOLCHAIN_FILE_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   CMAKE_TOOLCHAIN_FILE_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   HOST_CMAKE_TOOLCHAIN_FILE = None
[INFO] [stderr]   CMAKE_TOOLCHAIN_FILE = None
[INFO] [stderr]   CMAKE_GENERATOR_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   CMAKE_GENERATOR_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   HOST_CMAKE_GENERATOR = None
[INFO] [stderr]   CMAKE_GENERATOR = None
[INFO] [stderr]   CMAKE_PREFIX_PATH_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   CMAKE_PREFIX_PATH_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   HOST_CMAKE_PREFIX_PATH = None
[INFO] [stderr]   CMAKE_PREFIX_PATH = None
[INFO] [stderr]   CMAKE_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   CMAKE_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   HOST_CMAKE = None
[INFO] [stderr]   CMAKE = None
[INFO] [stderr]   -- The CXX compiler identification is GNU 13.3.0
[INFO] [stderr]   -- Detecting CXX compiler ABI info
[INFO] [stderr]   -- Detecting CXX compiler ABI info - done
[INFO] [stderr]   -- Check for working CXX compiler: /usr/bin/c++ - skipped
[INFO] [stderr]   -- Detecting CXX compile features
[INFO] [stderr]   -- Detecting CXX compile features - done
[INFO] [stderr]   -- Looking for a CUDA compiler
[INFO] [stderr]   -- Looking for a CUDA compiler - NOTFOUND
[INFO] [stderr]   -- Configuring incomplete, errors occurred!
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   running: cd "/opt/rustwide/target/debug/build/tfhe-cuda-backend-5ddc8472240d3807/out/build" && CMAKE_PREFIX_PATH="" LC_ALL="C" "cmake" "/opt/rustwide/workdir/cuda" "-B" "/opt/rustwide/target/debug/build/tfhe-cuda-backend-5ddc8472240d3807/out/build" "-DMULTI_ARCH=OFF" "-DUSE_NVTOOLS=OFF" "-DCMAKE_INSTALL_PREFIX=/opt/rustwide/target/debug/build/tfhe-cuda-backend-5ddc8472240d3807/out" "-DCMAKE_C_FLAGS= -ffunction-sections -fdata-sections -fPIC -m64 -w" "-DCMAKE_C_COMPILER=/usr/bin/cc" "-DCMAKE_CXX_FLAGS= -ffunction-sections -fdata-sections -fPIC -m64 -w" "-DCMAKE_CXX_COMPILER=/usr/bin/c++" "-DCMAKE_ASM_FLAGS= -ffunction-sections -fdata-sections -fPIC -m64 -w" "-DCMAKE_ASM_COMPILER=/usr/bin/cc" "-DCMAKE_BUILD_TYPE=Debug"
[INFO] [stderr]   CMake Error at CMakeLists.txt:15 (message):
[INFO] [stderr]     Cuda compiler not found.
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (176) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/cmake-0.1.58/src/lib.rs:1132:5:
[INFO] [stderr] 
[INFO] [stderr]   command did not execute successfully, got: exit status: 1
[INFO] [stderr] 
[INFO] [stderr]   build script failed, must exit now
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5ad96b17acba - std[128c3efe2914e152]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5ad96b17acba - std[128c3efe2914e152]::backtrace_rs::backtrace::trace_unsynchronized::<std[128c3efe2914e152]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5ad96b17acba - std[128c3efe2914e152]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x5ad96b17acba - <<std[128c3efe2914e152]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[6771d259883166e6]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x5ad96b19227a - <core[6771d259883166e6]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x5ad96b19227a - core[6771d259883166e6]::fmt::write
[INFO] [stderr]      6:     0x5ad96b1810a2 - std[128c3efe2914e152]::io::default_write_fmt::<std[128c3efe2914e152]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/io/mod.rs:621:11
[INFO] [stderr]      7:     0x5ad96b1810a2 - <std[128c3efe2914e152]::sys::stdio::unix::Stderr as std[128c3efe2914e152]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/io/mod.rs:1976:13
[INFO] [stderr]      8:     0x5ad96b15a81f - <std[128c3efe2914e152]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x5ad96b15a81f - std[128c3efe2914e152]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x5ad96b174bd1 - std[128c3efe2914e152]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x5ad96b174e4b - std[128c3efe2914e152]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x5ad96b15a8d8 - std[128c3efe2914e152]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x5ad96b14f949 - std[128c3efe2914e152]::sys::backtrace::__rust_end_short_backtrace::<std[128c3efe2914e152]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x5ad96b15b23d - __rustc[752cc74e29381ccc]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x5ad96b192abc - core[6771d259883166e6]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5ad96b0dc197 - cmake::fail::h0bb2a3121a1174f4
[INFO] [stderr]     17:     0x5ad96b0dbe23 - cmake::run::h27d8d33dda790cb3
[INFO] [stderr]     18:     0x5ad96b0e1b38 - cmake::Config::build::h77645da56e36f997
[INFO] [stderr]     19:     0x5ad96ab66ad1 - build_script_build::main::h0f6f9bffa553bf45
[INFO] [stderr]     20:     0x5ad96ab683b3 - core::ops::function::FnOnce::call_once::hebb9f1ae2136208c
[INFO] [stderr]     21:     0x5ad96ab681d6 - std::sys::backtrace::__rust_begin_short_backtrace::h07210969e93be389
[INFO] [stderr]     22:     0x5ad96ab68159 - std::rt::lang_start::{{closure}}::hff4dacfe88c8afdc
[INFO] [stderr]     23:     0x5ad96b173bc4 - <&dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe as core[6771d259883166e6]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     24:     0x5ad96b173bc4 - std[128c3efe2914e152]::panicking::catch_unwind::do_call::<&dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:581:40
[INFO] [stderr]     25:     0x5ad96b173bc4 - std[128c3efe2914e152]::panicking::catch_unwind::<i32, &dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:544:19
[INFO] [stderr]     26:     0x5ad96b173bc4 - std[128c3efe2914e152]::panic::catch_unwind::<&dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panic.rs:359:14
[INFO] [stderr]     27:     0x5ad96b173bc4 - std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/rt.rs:175:24
[INFO] [stderr]     28:     0x5ad96b173bc4 - std[128c3efe2914e152]::panicking::catch_unwind::do_call::<std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:581:40
[INFO] [stderr]     29:     0x5ad96b173bc4 - std[128c3efe2914e152]::panicking::catch_unwind::<isize, std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:544:19
[INFO] [stderr]     30:     0x5ad96b173bc4 - std[128c3efe2914e152]::panic::catch_unwind::<std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panic.rs:359:14
[INFO] [stderr]     31:     0x5ad96b173bc4 - std[128c3efe2914e152]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/rt.rs:171:5
[INFO] [stderr]     32:     0x5ad96ab68141 - std::rt::lang_start::h820f580cb108a593
[INFO] [stderr]     33:     0x5ad96ab6b305 - main
[INFO] [stderr]     34:     0x7d34888141ca - <unknown>
[INFO] [stderr]     35:     0x7d348881428b - __libc_start_main
[INFO] [stderr]     36:     0x5ad96ab661f5 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "2bd447a422c06a707f8c7a0ee48db8a98bfdcd0d5f1793a8293a9cfb6fe7703a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bd447a422c06a707f8c7a0ee48db8a98bfdcd0d5f1793a8293a9cfb6fe7703a", kill_on_drop: false }`
[INFO] [stdout] 2bd447a422c06a707f8c7a0ee48db8a98bfdcd0d5f1793a8293a9cfb6fe7703a
