gfortran/10.2: WARN: Build folder is dirty, removing it: C:\J\w\cci_PR-4249\.conan\data\gfortran\10.2\_\_\build\ca33edce272a279b24f87dc0d4cf5bbdcffbc187
'7z' is not recognized as an internal or external command,
operable program or batch file.
ERROR: gfortran/10.2: Error in source() method, line 36
	self.run("7z x {0}".format(filename))
	ConanException: Error 1 while executing 7z x GCC-10.2.0-crt-8.0.0-with-ada-20201019.7z