‘guix build --log-file’ can now return URLs of remote build logs: $ ./pre-inst-env guix build --log-file gdb -s mips64el-linux http://hydra.gnu.org/log/qzcw62lnvijv1qmdn66mjdk06y9ffh4p-gdb-7.10
(Works best in Emacs shell-mode where you can C-x C-f on the URL to open it in a browser.) Enjoy! Ludo’.