guile: warning: failed to install locale environment variable `PATH' set to `/gnu/store/378zjf2kgajcfd7mfr98jn5xyc5wa3qv-gzip-1.10/bin:/gnu/store/sf3rbvb6iqcphgm1afbplcs72hsywg25-tar-1.32/bin' hint: Using 'master' as the name for the initial branch. This default branch name hint: is subject to change. To configure the initial branch name to use in all hint: of your new repositories, which will suppress this warning, call: hint: hint: git config --global init.defaultBranch hint: hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and hint: 'development'. The just-created branch can be renamed via this command: hint: hint: git branch -m Initialized empty Git repository in /gnu/store/zx70zpv67da3w6xckaabc7a20wha3pb6-libbacktrace-1.0-1.5009c11-checkout/.git/ From https://github.com/ianlancetaylor/libbacktrace * branch 5009c113981431ae1843ebd29d6ad24eb32fc1b2 -> FETCH_HEAD Note: switching to 'FETCH_HEAD'. You are in 'detached HEAD' state. You can look around, make experimental changes and commit them, and you can discard any commits you make in this state without impacting any branches by switching back to a branch. If you want to create a new branch to retain commits you create, you may do so (now or later) by using -c with the switch command. Example: git switch -c Or undo this operation with: git switch - Turn off this advice by setting config variable advice.detachedHead to false HEAD is now at 5009c11 libbacktrace: replace Tom Sawyer with Opticks