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aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=gnu.org header.s=fencepost-gnu-org header.b=AxajUFar; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of "bug-guix-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="bug-guix-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: -2.39 Authentication-Results: aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=gnu.org header.s=fencepost-gnu-org header.b=AxajUFar; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of "bug-guix-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="bug-guix-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: B6FBC10112 X-Spam-Score: -2.39 X-Migadu-Scanner: scn1.migadu.com X-TUID: 3f4NBxc8jdZH Hi, Ludovic Court=C3=A8s skribis: > Uh, weird. I do encounter it like this: > > $ guix time-machine --commit=3D6b588da368c77cde82ea2f22ca315116228777ad = -- shell --export-manifest texlive-base rubber > ;; What follows is a "manifest" equivalent to the command line you gave. > ;; You can store it in a file that you may then pass to any 'guix' command > ;; that accepts a '--manifest' (or '-m') option. > (concatenate-manifests) Turns out the problem occurs if the given environment has been cached by a previous invocation (thanks to Marek Fel=C5=A1=C3=B6ci for putting me on = the right track!). Fixed in 925a57c5d04553ff6c514867348e7d3c5c22ca66. Ludo=E2=80=99.