It seems that 0.2 is completely broken these days and app-vim/gist no longer works. Please bump to 0.3 that seems to fix the issue.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=19221e7c91412bb81acd751b70dce215ad35e245 commit 19221e7c91412bb81acd751b70dce215ad35e245 Author: Patrice Clement <monsieurp@gentoo.org> AuthorDate: 2018-06-04 21:58:30 +0000 Commit: Patrice Clement <monsieurp@gentoo.org> CommitDate: 2018-06-04 21:58:44 +0000 app-vim/webapi: version bump. Closes: https://bugs.gentoo.org/657318 Package-Manager: Portage-2.3.24, Repoman-2.3.6 app-vim/webapi/Manifest | 1 + app-vim/webapi/webapi-0.3.ebuild | 21 +++++++++++++++++++++ 2 files changed, 22 insertions(+)