Input buildinfo: https://buildinfos.debian.net/buildinfo-pool/o/opam/opam_2.0.10-1_all.buildinfo
Use metasnap for getting required timestamps
New buildinfo file: /tmp/opam-2.0.10-1rjzsyp21/opam_2.0.10-1_all.buildinfo
Get source package info: opam=2.0.10-1
Source URL: http://snapshot.notset.fr/mr/package/opam/2.0.10-1/srcfiles?fileinfo=1
No source info found for opam-2.0.10-1