Input buildinfo: https://buildinfos.debian.net/buildinfo-pool/e/elisp-slime-nav/elisp-slime-nav_0.10-1_all.buildinfo Use metasnap for getting required timestamps New buildinfo file: /tmp/elisp-slime-nav-0.10-12k2kr7p2/elisp-slime-nav_0.10-1_all.buildinfo Get source package info: elisp-slime-nav=0.10-1 Source URL: http://snapshot.notset.fr/mr/package/elisp-slime-nav/0.10-1/srcfiles?fileinfo=1 Cannot determine base mirror to use