Check dependencies
------------------

Merged Build-Depends: build-essential, fakeroot
Filtered Build-Depends: build-essential, fakeroot
dpkg-deb: building package 'sbuild-build-depends-core-dummy' in '/<<BUILDDIR>>/resolver-AwLuAY/apt_archive/sbuild-build-depends-core-dummy.deb'.
gpg: /<<BUILDDIR>>/resolver-AwLuAY/gpg/trustdb.gpg: trustdb created
gpg: Warning: not using 'Sbuild Signer' as default key: No secret key
gpg: all values passed to '--default-key' ignored
gpg: no default secret key: No secret key
gpg: signing failed: No secret key
Failed to sign dummy archive Release file.