windows using vcpkg: debug builds fail with LNK2005 (symbol already defined)

[rursprung]

this is on windows 11 x64 with OpenCV installed statically via vcpkg and using the latest stable rustc (1.87.0).
i can run cargo build --release successfully, however with cargo build (i.e. debug build) it always fails because it finds the OpenCV symbols twice: once from the debug lib and once from the release lib, e.g.:

  = note: opencv_core4.lib(matrix_expressions.cpp.obj) : error LNK2005: "public: __cdecl cv::MatExpr::MatExpr(class cv::Mat const &)" (??0MatExpr@cv@@QEAA@AEBVMat@1@@Z) already defined in opencv_core4d.lib(opencv_core4d.dll)␍

(there are a ton more of those, see the full output in the gist below)

i'm not sure why it tries to link against the release libs (e.g. opencv_core4.lib) as well as the debug lib (e.g. opencv_core4d.lib) during the debug build and i'm not sure whether this is a problem of opencv-rust or of vcpkg?

this is not specific to one project, i have this with all projects where i try to use opencv-vcpkg. i can e.g. reproduce this with my test project

build output (after cargo clean): https://gist.github.com/rursprung/b1b809520f39341ff7b2e30375db5d2d