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# error kind ExecutionFailed
# pre-build errors command failed: exit status: 101
# rustc version rustc 1.98.0-nightly (3daae5e42 2026-06-14)
# docs.rs version docsrs 0.0.0 (886bc7a22b1adc4b387ce1343447fe3af98d9ce5 2026-06-14 )
# build log [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "DOCS_RS=1" "-w" "/opt/rustwide/workdir" "--user" "1001:1001" "72e6a85be9746226045111c4d9dc77b3c448888c0d3a910ea40fe62e1de6f5ee" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "rustdoc" "--lib" "-Zrustdoc-map" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--emit=invocation-specific\", \"--resource-suffix\", \"-20260614-1.98.0-nightly-3daae5e42\", \"--static-root-path\", \"/-/rustdoc.static/\", \"--cap-lints\", \"warn\", \"--extern-html-root-takes-precedence\"]" "--offline" "-Zunstable-options" "--config=doc.extern-map.registries.crates-io=\"https://docs.rs/{pkg_name}/{version}/x86_64-unknown-linux-gnu\"" "-Zrustdoc-scrape-examples" "-j6" "--target" "x86_64-unknown-linux-gnu", kill_on_drop: false }` [INFO] [stderr] Compiling mfem-cpp v0.2.0+mfem-4.6.0 (/opt/rustwide/workdir) [INFO] [stderr] error: failed to run custom build command for `mfem-cpp v0.2.0+mfem-4.6.0 (/opt/rustwide/workdir)` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/mfem-cpp-69d637ee840d39c6/build-script-build` (exit status: 101) [INFO] [stderr] --- stdout [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] -- CMake version: 3.28.3 [INFO] [stderr] -- Loading USER_CONFIG = /opt/rustwide/workdir/mfem/config/user.cmake (NOTFOUND) [INFO] [stderr] -- USE_XSDK_DEFAULTS = 'OFF' [INFO] [stderr] -- MFEM: using package POSIXCLOCKS [INFO] [stderr] -- MFEM shared library: BUILD_SHARED_LIBS = OFF [INFO] [stderr] -- MFEM build type: CMAKE_BUILD_TYPE = Debug [INFO] [stderr] -- MFEM version: v4.6.0 [INFO] [stderr] -- MFEM git string: (unknown) [INFO] [stderr] -- TPL_INCLUDE_DIRS = [INFO] [stderr] -- Writing substitute header --> "mfem.hpp" [INFO] [stderr] -- Writing substitute header --> "mfem-performance.hpp" [INFO] [stderr] -- performance_ex1: add flags "-march=native -Wall -pedantic --param max-completely-peel-times=3" [INFO] [stderr] -- Could NOT find Doxygen (missing: DOXYGEN_EXECUTABLE) [INFO] [stderr] -- CMAKE_INSTALL_PREFIX = /opt/rustwide/target/x86_64-unknown-linux-gnu/debug/build/mfem-cpp-131d00edd40100bd/out [INFO] [stderr] -- Configuring done (0.0s) [INFO] [stderr] -- Generating done (0.2s) [INFO] [stderr] -- Build files have been written to: /opt/rustwide/target/x86_64-unknown-linux-gnu/debug/build/mfem-cpp-131d00edd40100bd/out/build [INFO] [stderr] [ 0%] Building CXX object CMakeFiles/mfem.dir/fem/kdtree.cpp.o [INFO] [stderr] [ 0%] Building CXX object CMakeFiles/mfem.dir/fem/nonlinearform_ext.cpp.o [INFO] [stderr] [ 0%] Building CXX object CMakeFiles/mfem.dir/fem/nonlinearform.cpp.o [INFO] [stderr] [ 0%] Building CXX object CMakeFiles/mfem.dir/fem/nonlininteg.cpp.o [INFO] [stderr] [ 0%] Building CXX object CMakeFiles/mfem.dir/fem/fespacehierarchy.cpp.o [INFO] [stderr] [ 2%] Building CXX object CMakeFiles/mfem.dir/fem/qfunction.cpp.o [INFO] [stderr] [INFO] [stderr] --- stderr [INFO] [stderr] running: cd "/opt/rustwide/target/x86_64-unknown-linux-gnu/debug/build/mfem-cpp-131d00edd40100bd/out/build" && CMAKE_PREFIX_PATH="" LC_ALL="C" "cmake" "/opt/rustwide/workdir/mfem" "-B" "/opt/rustwide/target/x86_64-unknown-linux-gnu/debug/build/mfem-cpp-131d00edd40100bd/out/build" "-DBUILD_LIBRARY_TYPE=Static" "-DINSTALL_DIR_LIB=lib" "-DINSTALL_DIR_INCLUDE=include" "-DCMAKE_INSTALL_PREFIX=/opt/rustwide/target/x86_64-unknown-linux-gnu/debug/build/mfem-cpp-131d00edd40100bd/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] This miniapp requires MPI to be enabled.Please compile with MFEM_USE_MPI. [INFO] [stderr] CMake Warning at CMakeLists.txt:819 (export): [INFO] [stderr] Cannot create package registry file: [INFO] [stderr] [INFO] [stderr] //.cmake/packages/mfem/1db782b98ceb41f79a9e19e6f2007d64 [INFO] [stderr] [INFO] [stderr] No such file or directory [INFO] [stderr] [INFO] [stderr] [INFO] [stderr] [INFO] [stderr] running: cd "/opt/rustwide/target/x86_64-unknown-linux-gnu/debug/build/mfem-cpp-131d00edd40100bd/out/build" && LC_ALL="C" MAKEFLAGS="-j --jobserver-fds=4,5 --jobserver-auth=4,5" "cmake" "--build" "/opt/rustwide/target/x86_64-unknown-linux-gnu/debug/build/mfem-cpp-131d00edd40100bd/out/build" "--target" "install" "--config" "Debug" [INFO] [stderr] In file included from /opt/rustwide/workdir/mfem/fem/kdtree.hpp:15, [INFO] [stderr] from /opt/rustwide/workdir/mfem/fem/kdtree.cpp:12: [INFO] [stderr] /opt/rustwide/workdir/mfem/fem/../general/kdtree.hpp:317:12: error: 'uint8_t' in namespace 'std' does not name a type; did you mean 'wint_t'? [INFO] [stderr] 317 | std::uint8_t dim; [INFO] [stderr] | ^~~~~~~ [INFO] [stderr] | wint_t [INFO] [stderr] /opt/rustwide/workdir/mfem/fem/../general/kdtree.hpp:320:25: error: expected ')' before 'dd' [INFO] [stderr] 320 | CompN(std::uint8_t dd):dim(dd) {} [INFO] [stderr] | ~ ^~~ [INFO] [stderr] | ) [INFO] [stderr] /opt/rustwide/workdir/mfem/fem/../general/kdtree.hpp:356:27: error: 'std::uint8_t' has not been declared [INFO] [stderr] 356 | std::uint8_t cdim) [INFO] [stderr] | ^~~~~~~ [INFO] [stderr] /opt/rustwide/workdir/mfem/fem/../general/kdtree.hpp: In member function 'bool mfem::KDTree<Tindex, Tfloat, ndim, Tnorm>::CompN::operator()(const mfem::KDTree<Tindex, Tfloat, ndim, Tnorm>::PointND&, const mfem::KDTree<Tindex, Tfloat, ndim, Tnorm>::PointND&)': [INFO] [stderr] /opt/rustwide/workdir/mfem/fem/../general/kdtree.hpp:325:23: error: 'dim' was not declared in this scope; did you mean 'ndim'? [INFO] [stderr] 325 | return p1.xx[dim]<p2.xx[dim]; [INFO] [stderr] | ^~~ [INFO] [stderr] | ndim [INFO] [stderr] /opt/rustwide/workdir/mfem/fem/../general/kdtree.hpp: In member function 'bool mfem::KDTree<Tindex, Tfloat, ndim, Tnorm>::CompN::operator()(const mfem::KDTree<Tindex, Tfloat, ndim, Tnorm>::NodeND&, const mfem::KDTree<Tindex, Tfloat, ndim, Tnorm>::NodeND&)': [INFO] [stderr] /opt/rustwide/workdir/mfem/fem/../general/kdtree.hpp:331:27: error: 'dim' was not declared in this scope; did you mean 'ndim'? [INFO] [stderr] 331 | return n1.pt.xx[dim]<n2.pt.xx[dim]; [INFO] [stderr] | ^~~ [INFO] [stderr] | ndim [INFO] [stderr] /opt/rustwide/workdir/mfem/fem/../general/kdtree.hpp: In member function 'void mfem::KDTree<Tindex, Tfloat, ndim, Tnorm>::SortInPlace(typename std::vector<NodeND>::iterator, typename std::vector<NodeND>::iterator, size_t)': [INFO] [stderr] /opt/rustwide/workdir/mfem/fem/../general/kdtree.hpp:368:12: error: 'uint8_t' is not a member of 'std'; did you mean 'wint_t'? [INFO] [stderr] 368 | std::uint8_t cdim=(std::uint8_t)(level%ndim); [INFO] [stderr] | ^~~~~~~ [INFO] [stderr] | wint_t [INFO] [stderr] /opt/rustwide/workdir/mfem/fem/../general/kdtree.hpp:372:54: error: 'cdim' was not declared in this scope; did you mean 'ndim'? [INFO] [stderr] 372 | std::nth_element(itb, itb+siz/2, ite, CompN(cdim)); [INFO] [stderr] | ^~~~ [INFO] [stderr] | ndim [INFO] [stderr] /opt/rustwide/workdir/mfem/fem/../general/kdtree.hpp: In member function 'void mfem::KDTree<Tindex, Tfloat, ndim, Tnorm>::PSearch(typename std::vector<NodeND>::iterator, typename std::vector<NodeND>::iterator, size_t, PointS&)': [INFO] [stderr] /opt/rustwide/workdir/mfem/fem/../general/kdtree.hpp:394:12: error: 'uint8_t' is not a member of 'std'; did you mean 'wint_t'? [INFO] [stderr] 394 | std::uint8_t dim=(std::uint8_t) (level%ndim); [INFO] [stderr] | ^~~~~~~ [INFO] [stderr] | wint_t [INFO] [stderr] /opt/rustwide/workdir/mfem/fem/../general/kdtree.hpp:401:24: error: 'dim' was not declared in this scope; did you mean 'ndim'? [INFO] [stderr] 401 | if ((bc.sp.xx[dim]-bc.dist)>mtb->pt.xx[dim]) // look on the right only [INFO] [stderr] | ^~~ [INFO] [stderr] | ndim [INFO] [stderr] /opt/rustwide/workdir/mfem/fem/../general/kdtree.hpp: In member function 'void mfem::KDTree<Tindex, Tfloat, ndim, Tnorm>::NNS(PointND&, const int&, typename std::vector<NodeND>::iterator, typename std::vector<NodeND>::iterator, size_t, std::vector<std::tuple<Tfloat, Tindex> >&)': [INFO] [stderr] /opt/rustwide/workdir/mfem/fem/../general/kdtree.hpp:473:12: error: 'uint8_t' is not a member of 'std'; did you mean 'wint_t'? [INFO] [stderr] 473 | std::uint8_t dim=(std::uint8_t) (level%ndim); [INFO] [stderr] | ^~~~~~~ [INFO] [stderr] | wint_t [INFO] [stderr] /opt/rustwide/workdir/mfem/fem/../general/kdtree.hpp:489:21: error: 'dim' was not declared in this scope; did you mean 'ndim'? [INFO] [stderr] 489 | if ((pt.xx[dim]-R)>mtb->pt.xx[dim]) // look to the right only [INFO] [stderr] | ^~~ [INFO] [stderr] | ndim [INFO] [stderr] /opt/rustwide/workdir/mfem/fem/../general/kdtree.hpp: In member function 'void mfem::KDTree<Tindex, Tfloat, ndim, Tnorm>::FindNeighborPoints(PointND&, Tfloat, typename std::vector<NodeND>::iterator, typename std::vector<NodeND>::iterator, size_t, std::vector<Tindex>&)': [INFO] [stderr] /opt/rustwide/workdir/mfem/fem/../general/kdtree.hpp:525:12: error: 'uint8_t' is not a member of 'std'; did you mean 'wint_t'? [INFO] [stderr] 525 | std::uint8_t dim=(std::uint8_t) (level%ndim); [INFO] [stderr] | ^~~~~~~ [INFO] [stderr] | wint_t [INFO] [stderr] /opt/rustwide/workdir/mfem/fem/../general/kdtree.hpp:532:21: error: 'dim' was not declared in this scope; did you mean 'ndim'? [INFO] [stderr] 532 | if ((pt.xx[dim]-R)>mtb->pt.xx[dim]) // look to the right only [INFO] [stderr] | ^~~ [INFO] [stderr] | ndim [INFO] [stderr] /opt/rustwide/workdir/mfem/fem/../general/kdtree.hpp: In member function 'void mfem::KDTree<Tindex, Tfloat, ndim, Tnorm>::FindNeighborPoints(PointND&, Tfloat, typename std::vector<NodeND>::iterator, typename std::vector<NodeND>::iterator, size_t, std::vector<Tindex>&, std::vector<Tfloat>&)': [INFO] [stderr] /opt/rustwide/workdir/mfem/fem/../general/kdtree.hpp:574:12: error: 'uint8_t' is not a member of 'std'; did you mean 'wint_t'? [INFO] [stderr] 574 | std::uint8_t dim=(std::uint8_t) (level%ndim); [INFO] [stderr] | ^~~~~~~ [INFO] [stderr] | wint_t [INFO] [stderr] /opt/rustwide/workdir/mfem/fem/../general/kdtree.hpp:581:21: error: 'dim' was not declared in this scope; did you mean 'ndim'? [INFO] [stderr] 581 | if ((pt.xx[dim]-R)>mtb->pt.xx[dim]) // look to the right only [INFO] [stderr] | ^~~ [INFO] [stderr] | ndim [INFO] [stderr] gmake[2]: *** [CMakeFiles/mfem.dir/build.make:892: CMakeFiles/mfem.dir/fem/kdtree.cpp.o] Error 1 [INFO] [stderr] gmake[2]: *** Waiting for unfinished jobs.... [INFO] [stderr] gmake[1]: *** [CMakeFiles/Makefile2:749: CMakeFiles/mfem.dir/all] Error 2 [INFO] [stderr] gmake: *** [Makefile:146: all] Error 2 [INFO] [stderr] [INFO] [stderr] thread 'main' (1977) 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: 2 [INFO] [stderr] [INFO] [stderr] build script failed, must exit now [INFO] [stderr] note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace [INFO] running `Command { std: "docker" "inspect" "72e6a85be9746226045111c4d9dc77b3c448888c0d3a910ea40fe62e1de6f5ee", kill_on_drop: false }`