Backtrace:
In guix/store.scm:
   1331:8 19 (call-with-build-handler #<procedure 7fd79d5ea540 at g…> …)
In guix/scripts/build.scm:
   783:18 18 (_ _)
In guix/store.scm:
  2212:25 17 (run-with-store #<store-connection 256.100 7fd7b094b5a0> …)
   2040:8 16 (_ _)
In guix/packages.scm:
  2096:11 15 (_ _)
In guix/gexp.scm:
   1233:2 14 (_ #<store-connection 256.100 7fd79f19e410>)
   1100:2 13 (_ _)
    941:4 12 (_ _)
In guix/store.scm:
  2097:12 11 (_ #<store-connection 256.100 7fd79f19e410>)
  1413:11 10 (map/accumulate-builds #<store-connection 256.100 7fd7…> …)
   1331:8  9 (call-with-build-handler #<procedure 7fd79c4ab060 at g…> …)
  2212:25  8 (run-with-store #<store-connection 256.100 7fd79f19e410> …)
In guix/gexp.scm:
   946:13  7 (_ _)
In guix/store.scm:
  2040:13  6 (_ #<store-connection 256.100 7fd79f19e410>)
In guix/gexp.scm:
   302:51  5 (_)
In guix/packages.scm:
  2210:33  4 (origin->derivation _ _)
In guix/build/git.scm:
     40:0  3 (git-fetch _ _ _ #:git-command _ #:lfs? _ #:recursive? _)
In ice-9/boot-9.scm:
  1685:16  2 (raise-exception _ #:continuable? _)
  1685:16  1 (raise-exception _ #:continuable? _)
  1685:16  0 (raise-exception _ #:continuable? _)

ice-9/boot-9.scm:1685:16: In procedure raise-exception:
Invalid keyword: "igc-2.24.8-checkout"