Hi! Building guix-1.1.0-4.bdc801e is failing on aarch64 since about two weeks on ci.guix.gnu.org. http://ci.guix.gnu.org/search?query=guix-1.1.0-4.bdc801e+system%3Aaarch64-linux There is always the same failure during the test. See for example the raw log from http://ci.guix.gnu.org/build/2794788/details: test-name: network-interface-names … actual-error: + (wrong-type-arg + "list-tail" + "Wrong type argument in position ~A (expecting ~A): ~S" + (1 "pair" ()) + (())) result: FAIL When building locally this particular test is passing (after about three days on an SBC with 1 GB RAM). But unfortunately building locally I get two different failures instead: FAIL: tests/store.scm FAIL: tests/guix-package.sh Here are some more details: test-name: verify-store + check-contents location: /tmp/guix-build-guix-1.1.0-4.bdc801e.drv-0/source/tests/store.scm:972 … actual-error: + (%exception + #<&store-protocol-error message: "path `dtmp/guix-tests/store/bpl866rgsjyzdczlngfw8ss2lkld6bim-mirrors' is not in the store" status: 1>) result: FAIL Note the “dtmp/” instead of “/tmp/”. I saw the same error some weeks ago already, but shortly after that was happening, there was a substitute available. But it seems this error is reproducible in my case. guix install: error: profile t-guix-package-541/profile is locked by another process + true + kill 1387 + rm -f t-profile-541 t-profile-541.lock t-profile-541-1-link t-guix-package-file-541 + rm -rf t-guix-package-541 t-home-541 rm: cannot remove 't-guix-package-541': Directory not empty FAIL tests/guix-package.sh (exit status: 1) This may be due to a deleted but still opened file on an NFS share. There may be an intermediate hidden .nfs… file, which may get created in such a case (“delete on last close”, “silly rename”), However, the RFC-5661 for NFS demands even if OPEN4_RESULT_PRESERVE_UNLINKED is supported, that the directory entry of an open file must not be removed in this case, thus preventing a directory removal.