Hi, Using Guix 55685e4, I get:
$ guix build -S --no-substitutes sloccount The following derivation will be built: /gnu/store/915x0gqgny54sbnqdy3lcy31mfc4yh9c-sloccount-2.26.tar.gz.drv building /gnu/store/915x0gqgny54sbnqdy3lcy31mfc4yh9c-sloccount-2.26.tar.gz.drv... Starting download of /gnu/store/83aanlqnsignl3pxbxgs6qddjaj82mgi-sloccount-2.26.tar.gz >From http://www.dwheeler.com/sloccount/sloccount-2.26.tar.gz... following redirection to `https://dwheeler.com'... downloading from http://www.dwheeler.com/sloccount/sloccount-2.26.tar.gz ... sloccount-2.26.tar.gz 21KiB 27.7MiB/s 00:00 [##################] 100.0% sha256 hash mismatch for /gnu/store/83aanlqnsignl3pxbxgs6qddjaj82mgi-sloccount-2.26.tar.gz: expected hash: 0ayiwfjdh1946asah861ah9269s5xkc8p5fv1wnxs9znyaxs4zzs actual hash: 1acsim4y34avh2zlr7j6b4wxjm2jcl64k9bdxdwm9flij1g7gkl3 hash mismatch for store item '/gnu/store/83aanlqnsignl3pxbxgs6qddjaj82mgi-sloccount-2.26.tar.gz' build of /gnu/store/915x0gqgny54sbnqdy3lcy31mfc4yh9c-sloccount-2.26.tar.gz.drv failed View build log at '/var/log/guix/drvs/91/5x0gqgny54sbnqdy3lcy31mfc4yh9c-sloccount-2.26.tar.gz.drv.bz2'. guix build: error: build of `/gnu/store/915x0gqgny54sbnqdy3lcy31mfc4yh9c-sloccount-2.26.tar.gz.drv' failed