Hi, Getting this error when I try and update my emacs profile after a recent guix pull: ---8<--------------------------------------------------------------------------- substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://bordeaux.guix.gnu.org'... 100.0% The following derivations will be built: /gnu/store/jwm349jkbx675lsgkgvlgvyyzg89v4vf-emacs-async-1.9.4.drv /gnu/store/ah6zl6vdns20nwdhahsspnnbxdr4j0bn-emacs-minimal-28.1.drv building /gnu/store/ah6zl6vdns20nwdhahsspnnbxdr4j0bn-emacs-minimal-28.1.drv... ice-9/read.scm:126:4: In procedure read-expr*: /gnu/store/4i6avyj1sf50dmyg1242grbfacwgm4sa-emacs-minimal-28.1-builder:1:2852: Unknown # object: "#<" builder for `/gnu/store/ah6zl6vdns20nwdhahsspnnbxdr4j0bn-emacs-minimal-28.1.drv' failed with exit code 1 build of /gnu/store/ah6zl6vdns20nwdhahsspnnbxdr4j0bn-emacs-minimal-28.1.drv failed View build log at '/var/log/guix/drvs/ah/6zl6vdns20nwdhahsspnnbxdr4j0bn-emacs-minimal-28.1.drv.gz'. cannot build derivation `/gnu/store/jwm349jkbx675lsgkgvlgvyyzg89v4vf-emacs-async-1.9.4.drv': 1 dependencies couldn't be built guix build: error: build of `/gnu/store/jwm349jkbx675lsgkgvlgvyyzg89v4vf-emacs-async-1.9.4.drv' failed --------------------------------------------------------------------------->8--- I have narrowed it down to commit 64557bc695f074af3fcf1eeed8f6696921ef18c5 I have commented out my third party channels (flatwhatson and my own plt channel) and it still fails. Here is a repro: guix describe --format=channels: ---8<--------------------------------------------------------------------------- (list (channel (name 'guix) (url "https://git.savannah.gnu.org/git/guix.git") (branch #f) (commit "64557bc695f074af3fcf1eeed8f6696921ef18c5") (introduction (make-channel-introduction "9edb3f66fd807b096b48283debdcddccfea34bad" (openpgp-fingerprint "BBB0 2DDF 2CEA F6A8 0D1D E643 A2A0 6DF2 A33A 54FA"))))) -------------------------------------------------------------------------->8--- Run: guix pull --commit=64557bc695 guix build emacs-async I'm on a foreign distro if that makes any difference. Thanks. -- s/Fred[re]+i[ck]+/Fredrik/g