My latest guix pull failed with the following message: ./guix/store.scm:1224:15: Throw to key `srfi-34' with args `(#)'. guix pull: error: You found a bug: the program '/gnu/store/0nbcv4jkhf73qlvc6dsy05iamj6l662c-compute-guix-derivation' failed to compute the derivation for Guix (version: "815d3ac4c343c75beca2d752adc34312bfeff4fe"; system: "x86_64-linux"; host version: "98e3953e96d1f172e2e44d1f2d2f2e6b107f2daa"; pull-version: 1). Please report it by email to . I attached the full output of the pull.