Hi, Thanks for the report. I've worked around the problem in guix master in commit 7e0ad0dd0f2829d6f3776648ba7c88acf9888d7a. Please test by invoking guix pull and then trying again. ===== For the record, I also tried to update docker instead and I get this error: starting phase `build' Removing bundles/ ---> Making bundle: dynbinary (in bundles/dynbinary) Building: bundles/dynbinary-daemon/dockerd-20.10.21-ce GOOS="" GOARCH="" GOARM="" # github.com/docker/docker/vendor/archive/tar .gopath/src/github.com/docker/docker/vendor/archive/tar/common.go:541:32: undefined: any .gopath/src/github.com/docker/docker/vendor/archive/tar/strconv.go:204:15: undefined: strings.Cut .gopath/src/github.com/docker/docker/vendor/archive/tar/strconv.go:254:20: undefined: strings.Cut .gopath/src/github.com/docker/docker/vendor/archive/tar/strconv.go:276:13: undefined: strings.Cut error: in phase 'build': uncaught exception: %exception #<&invoke-error program: "hack/make.sh" arguments: ("dynbinary") exit-status: 2 term-signal: #f stop-signal: #f> phase `build' failed after 30.5 seconds command "hack/make.sh" "dynbinary" failed with status 2 ... with the attached patch. Hence I went downgrading xfsprogs instead of upgrading docker.