$ guix build -n di
;;; note: source file /usr/share/guile/2.0/sxml/ssax/input-parse.scm
;;;       newer than compiled /usr/lib/guile/2.0/ccache/sxml/ssax/input-parse.go
substitute: ;;; note: source file /usr/share/guile/2.0/sxml/ssax/input-parse.scm
substitute: ;;;       newer than compiled /usr/lib/guile/2.0/ccache/sxml/ssax/input-parse.go
substitute: updating list of substitutes from 'https://mirror.hydra.gnu.org'... substitute: updating list of substitutes from 'https://mirror.hydra.gnu.org'... substitute: updating list of substitutes from 'https://mirror.hydra.gnu.org'... 100.0%
The following derivations would be built:
   /gnu/store/wm1v507145mq7xf1z7njqr1s8qpf0vsp-di-4.42.drv
   /gnu/store/d2c74qvrz4brykg6fxr1yv9qwp32bm5p-pkg-config-0.29.drv
   /gnu/store/vznl4c129zybnnz1rxk1zqs5srdaq88m-lzip-1.16.drv
   /gnu/store/2npgk8w90gs8g9mbhrzj7hk3rd07rnwd-ed-1.13.drv
   /gnu/store/kq6sq9lxs6lmarn8k53wzk8ih11hyrd6-perl-boot0-5.22.1.drv
   /gnu/store/d2kz0y23xp5z86l04y3gmbql759zfm91-glibc-utf8-locales-2.23.drv
   /gnu/store/mmj1jbj6cqdgiqcl7wx0j7af25b4rbyb-module-import-compiled.drv
   /gnu/store/sqi8pnwf29sz8h53f284q5ddirpkms6k-module-import.drv
   /gnu/store/1sjshx1msjdrasfaqnn4f2c87vm4b34i-guile-2.0.11.drv
   /gnu/store/3fhz7ljj7hv766cpqla4w626hs29shi3-glibc-utf8-locales-2.23.drv
   /gnu/store/6lyn1l46qqb6a7a3dfg7glvvig4b5q53-diffutils-3.3.drv
   /gnu/store/8740wn4qra0lnyk2dgdp8r8fdl299534-gzip-1.8.drv
   /gnu/store/9aw717nb9gbwg3xcjf1in70rk7siv49k-module-import.drv
   /gnu/store/bmqwkhchmlqmk4i2r52kp9ma17zzlfhb-ld-wrapper-0.drv
   /gnu/store/bzqfa56grcwdys55p9f9pdmippa850c6-tar-1.29.drv
   /gnu/store/c0zfkk13pwxp0hlplsjbp9awwffdf0sh-grep-2.25.drv
   /gnu/store/id353m3ghrjkdifdq5va7w14hlnf2qzd-findutils-4.6.0.drv
   /gnu/store/in58n8l6q8nhnk6r6nwq8crggxg65133-file-5.25.drv
   /gnu/store/nn25b87v6ghs8f45hmv687mhbknpkn5n-patch-2.7.5.drv
   /gnu/store/panlmxpknrlb9g5pyrndr08hcarha1ga-xz-5.2.2.drv
   /gnu/store/qs51b1sbcykg0di92d8ldfa2nfahj7xl-sed-4.2.2.drv
   /gnu/store/ry0ssm6b54fdl5zxa3yh52m025nkqiaj-module-import-compiled.drv
   /gnu/store/vw8viqa57il5a7bg74pmhbn9mjqjx820-make-4.2.drv
   /gnu/store/y56li0giv5zpvl041v9b4ppxg2rrvyql-bzip2-1.0.6.drv
The following file would be downloaded:
   /gnu/store/idjj9vi751j8ay7kc39yb6qrsd1n4mmi-di-4.42.tar.gz