find_fast_cwd: WARNING: Couldn't compute FAST_CWD pointer. Please report this problem to the public mailing list email@example.com
If you are seeing this error, you have a very very old version of cygwin and should contact the software vendor who you got the software from. They need to rebase their version of Cygwin to a more current version in order to get both security updates and other fixes you need for Cygwin to work with the version of Windows you have.
This error has been showing up a lot on the Cygwin mailing lists from software associated with:
Cygwin FAQ entry for more information.