Static Linux SDK: build errors at cmake build

[xavgru12]

default access levels after clone in subdir of $HOME:

xaver@xaver-HP-EliteBook-860-16-inch-G10-Notebook-PC:~/code/static-linux-test/swift-ci/sdks/static-linux$ ll
total 36
drwxrwxr-x 5 xaver xaver 4096 Apr  5 14:52 ./
drwxrwxr-x 3 xaver xaver 4096 Apr  5 14:52 ../
-rwxrwxr-x 1 xaver xaver 1266 Apr  5 14:52 build*
-rw-rw-r-- 1 xaver xaver 2616 Apr  5 14:52 Dockerfile
-rw-rw-r-- 1 xaver xaver   16 Apr  5 14:52 .gitignore
-rw-rw-r-- 1 xaver xaver  898 Apr  5 14:52 README.md
drwxrwxr-x 5 xaver xaver 4096 Apr  5 14:52 resources/
drwxrwxr-x 2 xaver xaver 4096 Apr  5 14:52 scripts/

Executing: ./build

results in the following error at cmake build due to missing write access rights of ./source directory inside the docker container:

-- Check for working C compiler: /usr/bin/cc - broken
CMake Error at /usr/share/cmake-3.22/Modules/CMakeTestCCompiler.cmake:65 (file):
  file failed to open for writing (No such file or directory):

    /source/swift-project/cmake/build/CMakeFiles/CMakeError.log
Call Stack (most recent call first):
  CMakeLists.txt:12 (project)


CMake Error at /usr/share/cmake-3.22/Modules/CMakeTestCCompiler.cmake:69 (message):
  The C compiler

    "/usr/bin/cc"

  is not able to compile a simple test program.

  It fails with the following output:





  CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
  CMakeLists.txt:12 (project)


-- Configuring incomplete, errors occurred!
CMake Error: Cannot open file for write: /source/swift-project/cmake/build/CMakeCache.txt.tmp83767
CMake Error: : System Error: No such file or directory
CMake Error: Unable to open cache file for save. /source/swift-project/cmake/build/CMakeCache.txt
CMake Error: : System Error: No such file or directory