Bug: error: linking with `cc` failed: exit status: 1 in rust crate

[ShelbyJenkins]

Describe the bug

It builds, but upon running it errors.

note: /usr/bin/ld: /workspaces/test/target/debug/deps/libusearch-82cbab353a3106f1.rlib(usearch-82cbab353a3106f1.usearch.8bd6f700c2917180-cgu.0.rcgu.o): in function `usearch::ffi::new_native_index':
          /usr/local/cargo/registry/src/index.crates.io-6f17d22bba15001f/usearch-2.10.3/rust/lib.rs:55: undefined reference to `cxxbridge1$new_native_index'
          /usr/bin/ld: /workspaces/test/target/debug/deps/libusearch-82cbab353a3106f1.rlib(usearch-82cbab353a3106f1.usearch.8bd6f700c2917180-cgu.0.rcgu.o): in function `usearch::ffi::NativeIndex::load':
          /usr/local/cargo/registry/src/index.crates.io-6f17d22bba15001f/usearch-2.10.3/rust/lib.rs:84: undefined reference to `cxxbridge1$NativeIndex$load'
          /usr/bin/ld: /workspaces/test/target/debug/deps/libusearch-82cbab353a3106f1.rlib(usearch-82cbab353a3106f1.usearch.8bd6f700c2917180-cgu.0.rcgu.o): in function `<usearch::ffi::NativeIndex as cxx::unique_ptr::UniquePtrTarget>::__raw':
          /usr/local/cargo/registry/src/index.crates.io-6f17d22bba15001f/usearch-2.10.3/rust/lib.rs:55: undefined reference to `cxxbridge1$unique_ptr$NativeIndex$raw'
          /usr/bin/ld: /workspaces/test/target/debug/deps/libusearch-82cbab353a3106f1.rlib(usearch-82cbab353a3106f1.usearch.8bd6f700c2917180-cgu.0.rcgu.o): in function `<usearch::ffi::NativeIndex as cxx::unique_ptr::UniquePtrTarget>::__get':
          /usr/local/cargo/registry/src/index.crates.io-6f17d22bba15001f/usearch-2.10.3/rust/lib.rs:55: undefined reference to `cxxbridge1$unique_ptr$NativeIndex$get'
          /usr/bin/ld: /workspaces/test/target/debug/deps/libusearch-82cbab353a3106f1.rlib(usearch-82cbab353a3106f1.usearch.8bd6f700c2917180-cgu.0.rcgu.o): in function `<usearch::ffi::NativeIndex as cxx::unique_ptr::UniquePtrTarget>::__drop':
          /usr/local/cargo/registry/src/index.crates.io-6f17d22bba15001f/usearch-2.10.3/rust/lib.rs:55: undefined reference to `cxxbridge1$unique_ptr$NativeIndex$drop'
          collect2: error: ld returned 1 exit status
          
  = note: some `extern` functions couldn't be found; some native libraries may need to be installed or have their path specified
  = note: use the `-l` flag to specify native libraries to link
  = note: use the `cargo:rustc-link-lib` directive to specify the native libraries to link with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#rustc-link-lib)

Steps to reproduce

Running in a container.

    pub async fn new(opt: &ContentIndexSettings) -> Self {
        let db_path = db_check_path(&opt.context_index_name, "usearch")
            .await
            .unwrap();
        let usearch_filename = format!("{}/index.usearch", db_path);
        let options = IndexOptions {
            dimensions: 1024,
            metric: MetricKind::Cos,
            quantization: ScalarKind::F32,
            connectivity: 0,
            expansion_add: 0,
            expansion_search: 0,
            multi: false,
        };
        let index = new_index(&options);
        let index = match index {
            Ok(index) => index,
            Err(e) => panic!("Failed to create index: {}", e),
        };
        index.load(&usearch_filename).unwrap();
        Self {
            index,
            usearch_filename,
        }
    }

Expected behavior

To run.

USearch version

2.10.3

Operating System

Ubuntu 22.04

Hardware architecture

x86

Which interface are you using?

Other bindings

Contact Details

No response

Is there an existing issue for this?

• I have searched the existing issues

Code of Conduct

• I agree to follow this project's Code of Conduct

[ashvardanian]

Interesting, which compiler are you using, @ShelbyJenkins? If there is a minimal test case you can submit as a PR, that would really help prioritize this patch 🤗

[ShelbyJenkins]

from /workspaces/test/target/debug/build/usearch-d165d1039b6b3263/output

Details

cargo:CXXBRIDGE_PREFIX=usearch
cargo:CXXBRIDGE_DIR0=/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/include
cargo:CXXBRIDGE_DIR1=/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/crate
TARGET = Some("x86_64-unknown-linux-gnu")
OPT_LEVEL = Some("0")
HOST = Some("x86_64-unknown-linux-gnu")
cargo:rerun-if-env-changed=CXX_x86_64-unknown-linux-gnu
CXX_x86_64-unknown-linux-gnu = None
cargo:rerun-if-env-changed=CXX_x86_64_unknown_linux_gnu
CXX_x86_64_unknown_linux_gnu = None
cargo:rerun-if-env-changed=HOST_CXX
HOST_CXX = None
cargo:rerun-if-env-changed=CXX
CXX = Some("clang++")
cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
CRATE_CC_NO_DEFAULTS = None
DEBUG = Some("true")
cargo:rerun-if-env-changed=CXXFLAGS_x86_64-unknown-linux-gnu
CXXFLAGS_x86_64-unknown-linux-gnu = None
cargo:rerun-if-env-changed=CXXFLAGS_x86_64_unknown_linux_gnu
CXXFLAGS_x86_64_unknown_linux_gnu = None
cargo:rerun-if-env-changed=HOST_CXXFLAGS
HOST_CXXFLAGS = None
cargo:rerun-if-env-changed=CXXFLAGS
CXXFLAGS = None
cargo:rerun-if-env-changed=CXX_x86_64-unknown-linux-gnu
CXX_x86_64-unknown-linux-gnu = None
cargo:rerun-if-env-changed=CXX_x86_64_unknown_linux_gnu
CXX_x86_64_unknown_linux_gnu = None
cargo:rerun-if-env-changed=HOST_CXX
HOST_CXX = None
cargo:rerun-if-env-changed=CXX
CXX = Some("clang++")
cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
CRATE_CC_NO_DEFAULTS = None
cargo:rerun-if-env-changed=CXXFLAGS_x86_64-unknown-linux-gnu
CXXFLAGS_x86_64-unknown-linux-gnu = None
cargo:rerun-if-env-changed=CXXFLAGS_x86_64_unknown_linux_gnu
CXXFLAGS_x86_64_unknown_linux_gnu = None
cargo:rerun-if-env-changed=HOST_CXXFLAGS
HOST_CXXFLAGS = None
cargo:rerun-if-env-changed=CXXFLAGS
CXXFLAGS = None
cargo:rerun-if-env-changed=CXX_x86_64-unknown-linux-gnu
CXX_x86_64-unknown-linux-gnu = None
cargo:rerun-if-env-changed=CXX_x86_64_unknown_linux_gnu
CXX_x86_64_unknown_linux_gnu = None
cargo:rerun-if-env-changed=HOST_CXX
HOST_CXX = None
cargo:rerun-if-env-changed=CXX
CXX = Some("clang++")
cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
CRATE_CC_NO_DEFAULTS = None
cargo:rerun-if-env-changed=CXXFLAGS_x86_64-unknown-linux-gnu
CXXFLAGS_x86_64-unknown-linux-gnu = None
cargo:rerun-if-env-changed=CXXFLAGS_x86_64_unknown_linux_gnu
CXXFLAGS_x86_64_unknown_linux_gnu = None
cargo:rerun-if-env-changed=HOST_CXXFLAGS
HOST_CXXFLAGS = None
cargo:rerun-if-env-changed=CXXFLAGS
CXXFLAGS = None
cargo:rerun-if-env-changed=CXX_x86_64-unknown-linux-gnu
CXX_x86_64-unknown-linux-gnu = None
cargo:rerun-if-env-changed=CXX_x86_64_unknown_linux_gnu
CXX_x86_64_unknown_linux_gnu = None
cargo:rerun-if-env-changed=HOST_CXX
HOST_CXX = None
cargo:rerun-if-env-changed=CXX
CXX = Some("clang++")
cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
CRATE_CC_NO_DEFAULTS = None
cargo:rerun-if-env-changed=CXXFLAGS_x86_64-unknown-linux-gnu
CXXFLAGS_x86_64-unknown-linux-gnu = None
cargo:rerun-if-env-changed=CXXFLAGS_x86_64_unknown_linux_gnu
CXXFLAGS_x86_64_unknown_linux_gnu = None
cargo:rerun-if-env-changed=HOST_CXXFLAGS
HOST_CXXFLAGS = None
cargo:rerun-if-env-changed=CXXFLAGS
CXXFLAGS = None
cargo:rerun-if-env-changed=CXX_x86_64-unknown-linux-gnu
CXX_x86_64-unknown-linux-gnu = None
cargo:rerun-if-env-changed=CXX_x86_64_unknown_linux_gnu
CXX_x86_64_unknown_linux_gnu = None
cargo:rerun-if-env-changed=HOST_CXX
HOST_CXX = None
cargo:rerun-if-env-changed=CXX
CXX = Some("clang++")
cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
CRATE_CC_NO_DEFAULTS = None
cargo:rerun-if-env-changed=CXXFLAGS_x86_64-unknown-linux-gnu
CXXFLAGS_x86_64-unknown-linux-gnu = None
cargo:rerun-if-env-changed=CXXFLAGS_x86_64_unknown_linux_gnu
CXXFLAGS_x86_64_unknown_linux_gnu = None
cargo:rerun-if-env-changed=HOST_CXXFLAGS
HOST_CXXFLAGS = None
cargo:rerun-if-env-changed=CXXFLAGS
CXXFLAGS = None
cargo:rerun-if-env-changed=CXX_x86_64-unknown-linux-gnu
CXX_x86_64-unknown-linux-gnu = None
cargo:rerun-if-env-changed=CXX_x86_64_unknown_linux_gnu
CXX_x86_64_unknown_linux_gnu = None
cargo:rerun-if-env-changed=HOST_CXX
HOST_CXX = None
cargo:rerun-if-env-changed=CXX
CXX = Some("clang++")
cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
CRATE_CC_NO_DEFAULTS = None
cargo:rerun-if-env-changed=CXXFLAGS_x86_64-unknown-linux-gnu
CXXFLAGS_x86_64-unknown-linux-gnu = None
cargo:rerun-if-env-changed=CXXFLAGS_x86_64_unknown_linux_gnu
CXXFLAGS_x86_64_unknown_linux_gnu = None
cargo:rerun-if-env-changed=HOST_CXXFLAGS
HOST_CXXFLAGS = None
cargo:rerun-if-env-changed=CXXFLAGS
CXXFLAGS = None
cargo:rerun-if-env-changed=CXX_x86_64-unknown-linux-gnu
CXX_x86_64-unknown-linux-gnu = None
cargo:rerun-if-env-changed=CXX_x86_64_unknown_linux_gnu
CXX_x86_64_unknown_linux_gnu = None
cargo:rerun-if-env-changed=HOST_CXX
HOST_CXX = None
cargo:rerun-if-env-changed=CXX
CXX = Some("clang++")
cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
CRATE_CC_NO_DEFAULTS = None
cargo:rerun-if-env-changed=CXXFLAGS_x86_64-unknown-linux-gnu
CXXFLAGS_x86_64-unknown-linux-gnu = None
cargo:rerun-if-env-changed=CXXFLAGS_x86_64_unknown_linux_gnu
CXXFLAGS_x86_64_unknown_linux_gnu = None
cargo:rerun-if-env-changed=HOST_CXXFLAGS
HOST_CXXFLAGS = None
cargo:rerun-if-env-changed=CXXFLAGS
CXXFLAGS = None
cargo:rerun-if-env-changed=CC_ENABLE_DEBUG_OUTPUT
cargo:warning=In file included from /workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/sources/usearch/rust/lib.rs.cc:1:
cargo:warning=In file included from rust/lib.hpp:6:
cargo:warning=In file included from include/usearch/index_dense.hpp:10:
cargo:warning=�[1minclude/usearch/index_plugins.hpp:50:9: �[0m�[0;1;35mwarning: �[0m�[1m'SIMSIMD_DYNAMIC_DISPATCH' macro redefined [-Wmacro-redefined]�[0m
cargo:warning=#define SIMSIMD_DYNAMIC_DISPATCH 0
cargo:warning=�[0;1;32m ^
cargo:warning=�[0m�[1m:2:9: �[0m�[0;1;30mnote: �[0mprevious definition is here�[0m
cargo:warning=#define SIMSIMD_DYNAMIC_DISPATCH 1
cargo:warning=�[0;1;32m ^
cargo:warning=�[0mIn file included from /workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/sources/usearch/rust/lib.rs.cc:1:
cargo:warning=In file included from rust/lib.hpp:6:
cargo:warning=In file included from include/usearch/index_dense.hpp:10:
cargo:warning=�[1minclude/usearch/index_plugins.hpp:56:10: �[0m�[0;1;31mfatal error: �[0m�[1m'simsimd/simsimd.h' file not found�[0m
cargo:warning=#include <simsimd/simsimd.h>
cargo:warning=�[0;1;32m ^~~~~~~~~~~~~~~~~~~
cargo:warning=�[0m1 warning and 1 error generated.
exit status: 1
cargo:warning=ToolExecError: Command "clang++" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "--target=x86_64-unknown-linux-gnu" "-I" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/include" "-I" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/crate" "-I" "include" "-I" "rust" "-I" "fp16/include" "-I" "simsimd/include" "-Wno-unknown-pragmas" "-std=c++17" "-O3" "-ffast-math" "-fdiagnostics-color=always" "-g1" "-DUSEARCH_USE_SIMSIMD=1" "-DSIMSIMD_DYNAMIC_DISPATCH=1" "-DUSEARCH_USE_OPENMP=0" "-DUSEARCH_USE_FP16LIB=0" "-o" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/9ee4cf43856de047-lib.rs.o" "-c" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/sources/usearch/rust/lib.rs.cc" with args "clang++" did not execute successfully (status code exit status: 1).cargo:warning=In file included from rust/lib.cpp:1:
cargo:warning=In file included from rust/lib.hpp:6:
cargo:warning=In file included from include/usearch/index_dense.hpp:10:
cargo:warning=�[1minclude/usearch/index_plugins.hpp:50:9: �[0m�[0;1;35mwarning: �[0m�[1m'SIMSIMD_DYNAMIC_DISPATCH' macro redefined [-Wmacro-redefined]�[0m
cargo:warning=#define SIMSIMD_DYNAMIC_DISPATCH 0
cargo:warning=�[0;1;32m ^
cargo:warning=�[0m�[1m:2:9: �[0m�[0;1;30mnote: �[0mprevious definition is here�[0m
cargo:warning=#define SIMSIMD_DYNAMIC_DISPATCH 1
cargo:warning=�[0;1;32m ^
cargo:warning=�[0mIn file included from rust/lib.cpp:1:
cargo:warning=In file included from rust/lib.hpp:6:
cargo:warning=In file included from include/usearch/index_dense.hpp:10:
cargo:warning=�[1minclude/usearch/index_plugins.hpp:56:10: �[0m�[0;1;31mfatal error: �[0m�[1m'simsimd/simsimd.h' file not found�[0m
cargo:warning=#include <simsimd/simsimd.h>
cargo:warning=�[0;1;32m ^~~~~~~~~~~~~~~~~~~
cargo:warning=�[0m1 warning and 1 error generated.

exit status: 1
cargo:warning=ToolExecError: Command "clang++" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "--target=x86_64-unknown-linux-gnu" "-I" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/include" "-I" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/crate" "-I" "include" "-I" "rust" "-I" "fp16/include" "-I" "simsimd/include" "-Wno-unknown-pragmas" "-std=c++17" "-O3" "-ffast-math" "-fdiagnostics-color=always" "-g1" "-DUSEARCH_USE_SIMSIMD=1" "-DSIMSIMD_DYNAMIC_DISPATCH=1" "-DUSEARCH_USE_OPENMP=0" "-DUSEARCH_USE_FP16LIB=0" "-o" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/7d686aece4a9d910-lib.o" "-c" "rust/lib.cpp" with args "clang++" did not execute successfully (status code exit status: 1).
cargo:warning=Failed to compile with all SIMD backends...cargo:warning=In file included from /workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/sources/usearch/rust/lib.rs.cc:1:
cargo:warning=In file included from rust/lib.hpp:6:
cargo:warning=In file included from include/usearch/index_dense.hpp:10:
cargo:warning=�[1minclude/usearch/index_plugins.hpp:50:9: �[0m�[0;1;35mwarning: �[0m�[1m'SIMSIMD_DYNAMIC_DISPATCH' macro redefined [-Wmacro-redefined]�[0m
cargo:warning=#define SIMSIMD_DYNAMIC_DISPATCH 0
cargo:warning=�[0;1;32m ^
cargo:warning=�[0m�[1m:2:9: �[0m�[0;1;30mnote: �[0mprevious definition is here�[0m
cargo:warning=#define SIMSIMD_DYNAMIC_DISPATCH 1
cargo:warning=�[0;1;32m ^
cargo:warning=�[0mIn file included from /workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/sources/usearch/rust/lib.rs.cc:1:
cargo:warning=In file included from rust/lib.hpp:6:
cargo:warning=In file included from include/usearch/index_dense.hpp:10:
cargo:warning=�[1minclude/usearch/index_plugins.hpp:56:10: �[0m�[0;1;31mfatal error: �[0m�[1m'simsimd/simsimd.h' file not found�[0m
cargo:warning=#include <simsimd/simsimd.h>
cargo:warning=�[0;1;32m ^~~~~~~~~~~~~~~~~~~
cargo:warning=�[0m1 warning and 1 error generated.
exit status: 1
cargo:warning=ToolExecError: Command "clang++" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "--target=x86_64-unknown-linux-gnu" "-I" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/include" "-I" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/crate" "-I" "include" "-I" "rust" "-I" "fp16/include" "-I" "simsimd/include" "-Wno-unknown-pragmas" "-std=c++17" "-O3" "-ffast-math" "-fdiagnostics-color=always" "-g1" "-DUSEARCH_USE_SIMSIMD=1" "-DSIMSIMD_DYNAMIC_DISPATCH=1" "-DUSEARCH_USE_OPENMP=0" "-DUSEARCH_USE_FP16LIB=0" "-DSIMSIMD_TARGET_SAPPHIRE=0" "-o" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/9ee4cf43856de047-lib.rs.o" "-c" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/sources/usearch/rust/lib.rs.cc" with args "clang++" did not execute successfully (status code exit status: 1).cargo:warning=In file included from rust/lib.cpp:1:
cargo:warning=In file included from rust/lib.hpp:6:
cargo:warning=In file included from include/usearch/index_dense.hpp:10:
cargo:warning=�[1minclude/usearch/index_plugins.hpp:50:9: �[0m�[0;1;35mwarning: �[0m�[1m'SIMSIMD_DYNAMIC_DISPATCH' macro redefined [-Wmacro-redefined]�[0m
cargo:warning=#define SIMSIMD_DYNAMIC_DISPATCH 0
cargo:warning=�[0;1;32m ^
cargo:warning=�[0m�[1m:2:9: �[0m�[0;1;30mnote: �[0mprevious definition is here�[0m
cargo:warning=#define SIMSIMD_DYNAMIC_DISPATCH 1
cargo:warning=�[0;1;32m ^
cargo:warning=�[0mIn file included from rust/lib.cpp:1:
cargo:warning=In file included from rust/lib.hpp:6:
cargo:warning=In file included from include/usearch/index_dense.hpp:10:
cargo:warning=�[1minclude/usearch/index_plugins.hpp:56:10: �[0m�[0;1;31mfatal error: �[0m�[1m'simsimd/simsimd.h' file not found�[0m
cargo:warning=#include <simsimd/simsimd.h>
cargo:warning=�[0;1;32m ^~~~~~~~~~~~~~~~~~~
cargo:warning=�[0m1 warning and 1 error generated.

exit status: 1
cargo:warning=ToolExecError: Command "clang++" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "--target=x86_64-unknown-linux-gnu" "-I" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/include" "-I" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/crate" "-I" "include" "-I" "rust" "-I" "fp16/include" "-I" "simsimd/include" "-Wno-unknown-pragmas" "-std=c++17" "-O3" "-ffast-math" "-fdiagnostics-color=always" "-g1" "-DUSEARCH_USE_SIMSIMD=1" "-DSIMSIMD_DYNAMIC_DISPATCH=1" "-DUSEARCH_USE_OPENMP=0" "-DUSEARCH_USE_FP16LIB=0" "-DSIMSIMD_TARGET_SAPPHIRE=0" "-o" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/7d686aece4a9d910-lib.o" "-c" "rust/lib.cpp" with args "clang++" did not execute successfully (status code exit status: 1).
cargo:warning=Failed to compile after disabling SIMSIMD_TARGET_SAPPHIRE, trying next configuration...
cargo:warning=In file included from /workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/sources/usearch/rust/lib.rs.cc:1:
cargo:warning=In file included from rust/lib.hpp:6:
cargo:warning=In file included from include/usearch/index_dense.hpp:10:
cargo:warning=�[1minclude/usearch/index_plugins.hpp:50:9: �[0m�[0;1;35mwarning: �[0m�[1m'SIMSIMD_DYNAMIC_DISPATCH' macro redefined [-Wmacro-redefined]�[0m
cargo:warning=#define SIMSIMD_DYNAMIC_DISPATCH 0
cargo:warning=�[0;1;32m ^
cargo:warning=�[0m�[1m:2:9: �[0m�[0;1;30mnote: �[0mprevious definition is here�[0m
cargo:warning=#define SIMSIMD_DYNAMIC_DISPATCH 1
cargo:warning=�[0;1;32m ^
cargo:warning=�[0mIn file included from /workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/sources/usearch/rust/lib.rs.cc:1:
cargo:warning=In file included from rust/lib.hpp:6:
cargo:warning=In file included from include/usearch/index_dense.hpp:10:
cargo:warning=�[1minclude/usearch/index_plugins.hpp:56:10: �[0m�[0;1;31mfatal error: �[0m�[1m'simsimd/simsimd.h' file not found�[0m
cargo:warning=#include <simsimd/simsimd.h>
cargo:warning=�[0;1;32m ^~~~~~~~~~~~~~~~~~~
cargo:warning=�[0m1 warning and 1 error generated.
exit status: 1
cargo:warning=ToolExecError: Command "clang++" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "--target=x86_64-unknown-linux-gnu" "-I" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/include" "-I" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/crate" "-I" "include" "-I" "rust" "-I" "fp16/include" "-I" "simsimd/include" "-Wno-unknown-pragmas" "-std=c++17" "-O3" "-ffast-math" "-fdiagnostics-color=always" "-g1" "-DUSEARCH_USE_SIMSIMD=1" "-DSIMSIMD_DYNAMIC_DISPATCH=1" "-DUSEARCH_USE_OPENMP=0" "-DUSEARCH_USE_FP16LIB=0" "-DSIMSIMD_TARGET_SAPPHIRE=0" "-DSIMSIMD_TARGET_ICE=0" "-o" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/9ee4cf43856de047-lib.rs.o" "-c" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/sources/usearch/rust/lib.rs.cc" with args "clang++" did not execute successfully (status code exit status: 1).cargo:warning=In file included from rust/lib.cpp:1:
cargo:warning=In file included from rust/lib.hpp:6:
cargo:warning=In file included from include/usearch/index_dense.hpp:10:
cargo:warning=�[1minclude/usearch/index_plugins.hpp:50:9: �[0m�[0;1;35mwarning: �[0m�[1m'SIMSIMD_DYNAMIC_DISPATCH' macro redefined [-Wmacro-redefined]�[0m
cargo:warning=#define SIMSIMD_DYNAMIC_DISPATCH 0
cargo:warning=�[0;1;32m ^
cargo:warning=�[0m�[1m:2:9: �[0m�[0;1;30mnote: �[0mprevious definition is here�[0m
cargo:warning=#define SIMSIMD_DYNAMIC_DISPATCH 1
cargo:warning=�[0;1;32m ^
cargo:warning=�[0mIn file included from rust/lib.cpp:1:
cargo:warning=In file included from rust/lib.hpp:6:
cargo:warning=In file included from include/usearch/index_dense.hpp:10:
cargo:warning=�[1minclude/usearch/index_plugins.hpp:56:10: �[0m�[0;1;31mfatal error: �[0m�[1m'simsimd/simsimd.h' file not found�[0m
cargo:warning=#include <simsimd/simsimd.h>
cargo:warning=�[0;1;32m ^~~~~~~~~~~~~~~~~~~
cargo:warning=�[0m1 warning and 1 error generated.

exit status: 1
cargo:warning=ToolExecError: Command "clang++" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "--target=x86_64-unknown-linux-gnu" "-I" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/include" "-I" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/crate" "-I" "include" "-I" "rust" "-I" "fp16/include" "-I" "simsimd/include" "-Wno-unknown-pragmas" "-std=c++17" "-O3" "-ffast-math" "-fdiagnostics-color=always" "-g1" "-DUSEARCH_USE_SIMSIMD=1" "-DSIMSIMD_DYNAMIC_DISPATCH=1" "-DUSEARCH_USE_OPENMP=0" "-DUSEARCH_USE_FP16LIB=0" "-DSIMSIMD_TARGET_SAPPHIRE=0" "-DSIMSIMD_TARGET_ICE=0" "-o" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/7d686aece4a9d910-lib.o" "-c" "rust/lib.cpp" with args "clang++" did not execute successfully (status code exit status: 1).
cargo:warning=Failed to compile after disabling SIMSIMD_TARGET_ICE, trying next configuration...
cargo:warning=In file included from /workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/sources/usearch/rust/lib.rs.cc:1:
cargo:warning=In file included from rust/lib.hpp:6:
cargo:warning=In file included from include/usearch/index_dense.hpp:10:
cargo:warning=�[1minclude/usearch/index_plugins.hpp:50:9: �[0m�[0;1;35mwarning: �[0m�[1m'SIMSIMD_DYNAMIC_DISPATCH' macro redefined [-Wmacro-redefined]�[0m
cargo:warning=#define SIMSIMD_DYNAMIC_DISPATCH 0
cargo:warning=�[0;1;32m ^
cargo:warning=�[0m�[1m:2:9: �[0m�[0;1;30mnote: �[0mprevious definition is here�[0m
cargo:warning=#define SIMSIMD_DYNAMIC_DISPATCH 1
cargo:warning=�[0;1;32m ^
cargo:warning=�[0mIn file included from /workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/sources/usearch/rust/lib.rs.cc:1:
cargo:warning=In file included from rust/lib.hpp:6:
cargo:warning=In file included from include/usearch/index_dense.hpp:10:
cargo:warning=�[1minclude/usearch/index_plugins.hpp:56:10: �[0m�[0;1;31mfatal error: �[0m�[1m'simsimd/simsimd.h' file not found�[0m
cargo:warning=#include <simsimd/simsimd.h>
cargo:warning=�[0;1;32m ^~~~~~~~~~~~~~~~~~~
cargo:warning=�[0m1 warning and 1 error generated.
exit status: 1
cargo:warning=ToolExecError: Command "clang++" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "--target=x86_64-unknown-linux-gnu" "-I" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/include" "-I" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/crate" "-I" "include" "-I" "rust" "-I" "fp16/include" "-I" "simsimd/include" "-Wno-unknown-pragmas" "-std=c++17" "-O3" "-ffast-math" "-fdiagnostics-color=always" "-g1" "-DUSEARCH_USE_SIMSIMD=1" "-DSIMSIMD_DYNAMIC_DISPATCH=1" "-DUSEARCH_USE_OPENMP=0" "-DUSEARCH_USE_FP16LIB=0" "-DSIMSIMD_TARGET_SAPPHIRE=0" "-DSIMSIMD_TARGET_ICE=0" "-DSIMSIMD_TARGET_SKYLAKE=0" "-o" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/9ee4cf43856de047-lib.rs.o" "-c" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/sources/usearch/rust/lib.rs.cc" with args "clang++" did not execute successfully (status code exit status: 1).cargo:warning=In file included from rust/lib.cpp:1:
cargo:warning=In file included from rust/lib.hpp:6:
cargo:warning=In file included from include/usearch/index_dense.hpp:10:
cargo:warning=�[1minclude/usearch/index_plugins.hpp:50:9: �[0m�[0;1;35mwarning: �[0m�[1m'SIMSIMD_DYNAMIC_DISPATCH' macro redefined [-Wmacro-redefined]�[0m
cargo:warning=#define SIMSIMD_DYNAMIC_DISPATCH 0
cargo:warning=�[0;1;32m ^
cargo:warning=�[0m�[1m:2:9: �[0m�[0;1;30mnote: �[0mprevious definition is here�[0m
cargo:warning=#define SIMSIMD_DYNAMIC_DISPATCH 1
cargo:warning=�[0;1;32m ^
cargo:warning=�[0mIn file included from rust/lib.cpp:1:
cargo:warning=In file included from rust/lib.hpp:6:
cargo:warning=In file included from include/usearch/index_dense.hpp:10:
cargo:warning=�[1minclude/usearch/index_plugins.hpp:56:10: �[0m�[0;1;31mfatal error: �[0m�[1m'simsimd/simsimd.h' file not found�[0m
cargo:warning=#include <simsimd/simsimd.h>
cargo:warning=�[0;1;32m ^~~~~~~~~~~~~~~~~~~
cargo:warning=�[0m1 warning and 1 error generated.

exit status: 1
cargo:warning=ToolExecError: Command "clang++" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "--target=x86_64-unknown-linux-gnu" "-I" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/include" "-I" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/crate" "-I" "include" "-I" "rust" "-I" "fp16/include" "-I" "simsimd/include" "-Wno-unknown-pragmas" "-std=c++17" "-O3" "-ffast-math" "-fdiagnostics-color=always" "-g1" "-DUSEARCH_USE_SIMSIMD=1" "-DSIMSIMD_DYNAMIC_DISPATCH=1" "-DUSEARCH_USE_OPENMP=0" "-DUSEARCH_USE_FP16LIB=0" "-DSIMSIMD_TARGET_SAPPHIRE=0" "-DSIMSIMD_TARGET_ICE=0" "-DSIMSIMD_TARGET_SKYLAKE=0" "-o" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/7d686aece4a9d910-lib.o" "-c" "rust/lib.cpp" with args "clang++" did not execute successfully (status code exit status: 1).
cargo:warning=Failed to compile after disabling SIMSIMD_TARGET_SKYLAKE, trying next configuration...
cargo:warning=In file included from /workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/sources/usearch/rust/lib.rs.cc:1:
cargo:warning=In file included from rust/lib.hpp:6:
cargo:warning=In file included from include/usearch/index_dense.hpp:10:
cargo:warning=�[1minclude/usearch/index_plugins.hpp:50:9: �[0m�[0;1;35mwarning: �[0m�[1m'SIMSIMD_DYNAMIC_DISPATCH' macro redefined [-Wmacro-redefined]�[0m
cargo:warning=#define SIMSIMD_DYNAMIC_DISPATCH 0
cargo:warning=�[0;1;32m ^
cargo:warning=�[0m�[1m:2:9: �[0m�[0;1;30mnote: �[0mprevious definition is here�[0m
cargo:warning=#define SIMSIMD_DYNAMIC_DISPATCH 1
cargo:warning=�[0;1;32m ^
cargo:warning=�[0mIn file included from /workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/sources/usearch/rust/lib.rs.cc:1:
cargo:warning=In file included from rust/lib.hpp:6:
cargo:warning=In file included from include/usearch/index_dense.hpp:10:
cargo:warning=�[1minclude/usearch/index_plugins.hpp:56:10: �[0m�[0;1;31mfatal error: �[0m�[1m'simsimd/simsimd.h' file not found�[0m
cargo:warning=#include <simsimd/simsimd.h>
cargo:warning=�[0;1;32m ^~~~~~~~~~~~~~~~~~~
cargo:warning=�[0m1 warning and 1 error generated.
exit status: 1
cargo:warning=ToolExecError: Command "clang++" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "--target=x86_64-unknown-linux-gnu" "-I" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/include" "-I" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/crate" "-I" "include" "-I" "rust" "-I" "fp16/include" "-I" "simsimd/include" "-Wno-unknown-pragmas" "-std=c++17" "-O3" "-ffast-math" "-fdiagnostics-color=always" "-g1" "-DUSEARCH_USE_SIMSIMD=1" "-DSIMSIMD_DYNAMIC_DISPATCH=1" "-DUSEARCH_USE_OPENMP=0" "-DUSEARCH_USE_FP16LIB=0" "-DSIMSIMD_TARGET_SAPPHIRE=0" "-DSIMSIMD_TARGET_ICE=0" "-DSIMSIMD_TARGET_SKYLAKE=0" "-DSIMSIMD_TARGET_HASWELL=0" "-o" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/9ee4cf43856de047-lib.rs.o" "-c" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/sources/usearch/rust/lib.rs.cc" with args "clang++" did not execute successfully (status code exit status: 1).cargo:warning=In file included from rust/lib.cpp:1:
cargo:warning=In file included from rust/lib.hpp:6:
cargo:warning=In file included from include/usearch/index_dense.hpp:10:
cargo:warning=�[1minclude/usearch/index_plugins.hpp:50:9: �[0m�[0;1;35mwarning: �[0m�[1m'SIMSIMD_DYNAMIC_DISPATCH' macro redefined [-Wmacro-redefined]�[0m
cargo:warning=#define SIMSIMD_DYNAMIC_DISPATCH 0
cargo:warning=�[0;1;32m ^
cargo:warning=�[0m�[1m:2:9: �[0m�[0;1;30mnote: �[0mprevious definition is here�[0m
cargo:warning=#define SIMSIMD_DYNAMIC_DISPATCH 1
cargo:warning=�[0;1;32m ^
cargo:warning=�[0mIn file included from rust/lib.cpp:1:
cargo:warning=In file included from rust/lib.hpp:6:
cargo:warning=In file included from include/usearch/index_dense.hpp:10:
cargo:warning=�[1minclude/usearch/index_plugins.hpp:56:10: �[0m�[0;1;31mfatal error: �[0m�[1m'simsimd/simsimd.h' file not found�[0m
cargo:warning=#include <simsimd/simsimd.h>
cargo:warning=�[0;1;32m ^~~~~~~~~~~~~~~~~~~
cargo:warning=�[0m1 warning and 1 error generated.

exit status: 1
cargo:warning=ToolExecError: Command "clang++" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "--target=x86_64-unknown-linux-gnu" "-I" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/include" "-I" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/cxxbridge/crate" "-I" "include" "-I" "rust" "-I" "fp16/include" "-I" "simsimd/include" "-Wno-unknown-pragmas" "-std=c++17" "-O3" "-ffast-math" "-fdiagnostics-color=always" "-g1" "-DUSEARCH_USE_SIMSIMD=1" "-DSIMSIMD_DYNAMIC_DISPATCH=1" "-DUSEARCH_USE_OPENMP=0" "-DUSEARCH_USE_FP16LIB=0" "-DSIMSIMD_TARGET_SAPPHIRE=0" "-DSIMSIMD_TARGET_ICE=0" "-DSIMSIMD_TARGET_SKYLAKE=0" "-DSIMSIMD_TARGET_HASWELL=0" "-o" "/workspaces/test/target/debug/build/usearch-d165d1039b6b3263/out/7d686aece4a9d910-lib.o" "-c" "rust/lib.cpp" with args "clang++" did not execute successfully (status code exit status: 1).
cargo:warning=Failed to compile after disabling SIMSIMD_TARGET_HASWELL, trying next configuration...
cargo:rerun-if-changed=rust/lib.rs
cargo:rerun-if-changed=rust/lib.cpp
cargo:rerun-if-changed=rust/lib.hpp
cargo:rerun-if-changed=include/index_plugins.hpp
cargo:rerun-if-changed=include/index_dense.hpp
cargo:rerun-if-changed=include/usearch/index.hpp

I also tried to clone the repo and compile it and that gave a ton of errors, but I didn't thinnk to save them. Usearch previously worked for me, so IDK what's going on.

[ashvardanian]

If you are trying to compile locally - you should pull dependencies:

cargo:warning=�[1minclude/usearch/index_plugins.hpp:56:10: �[0m�[0;1;31mfatal error: �[0m�[1m'simsimd/simsimd.h' file not found�[0m

See CONTRIBUTING.md for more details on how to compile. In past, the Rust builds were much simpler and didn't include advanced dynamic dispatch for SIMD kernels.

I'll look deeper into your logs and will try to reproduce.

[embe-pw]

There seem to be two problems here:

1. The build script exits successfully even if it does not manage to build the library – there should be something like exit(1) in this case. This means that the linker fails with missing symbols later.
2. The usearch crate distributed via crates.io does not contain the simsimd directory, so the library build fails if simsimd library is not installed – this is unexpected.

[ShelbyJenkins]

That's actually why I was trying to compile locally - I noticed the sub module was not in the crate.

So if you pull the submodules and try to build it resolves that issue of simsimd not being found, but it still doesn't build correctly. Sorry I forgot to mention that last night.

[ashvardanian]

Gotcha! @ShelbyJenkins and @embe-pw if you have a PR to add files to the crate - I am ready to merge 🤗

Can you please share the build errors as well? I suspect you are using an older compiler. Thanks!

[ShelbyJenkins]

@ashvardanian sorry, I don't have the build logs from trying to build with the repos cloned.

No PR from me. This is WAY above my pay grade :)

FWIW, I tried with both the latest clang and g++ libs.

[ashvardanian]

🎉 This issue has been resolved in version 2.11.0 🎉

The release is available on GitHub release

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