The installation of some scientific packages [e.g. https://bugs.gentoo.org/657984, https://bugs.gentoo.org/658034, https://bugs.gentoo.org/658026] is failing now on several machines. Could it be a result of a broken eselect, see https://bugs.gentoo.org/568038 or https://github.com/gentoo/sci/issues/453? root@lynxold:/root(2)# qlist -Iv eselect app-admin/eselect-1.4.13-r100 app-emacs/eselect-mode-1.4.13 app-eselect/eselect-cdparanoia-0.1 app-eselect/eselect-ctags-1.18 app-eselect/eselect-emacs-1.18 app-eselect/eselect-fontconfig-1.1-r1 app-eselect/eselect-gnome-shell-extensions-20180306 app-eselect/eselect-java-0.4.0 app-eselect/eselect-lib-bin-symlink-0.1.1 app-eselect/eselect-mpg123-0.1 app-eselect/eselect-mpost-0.3 app-eselect/eselect-notify-send-0.1 app-eselect/eselect-opencl-1.1.0-r4 app-eselect/eselect-opengl-1.3.1-r4 app-eselect/eselect-php-0.9.5 app-eselect/eselect-pinentry-0.7 app-eselect/eselect-postgresql-2.3 app-eselect/eselect-python-20171204 app-eselect/eselect-ruby-20171225 app-eselect/eselect-rust-0.3_pre20150428 app-eselect/eselect-scala-0.1.1 app-eselect/eselect-timidity-20110513 app-eselect/eselect-unison-0.3 app-eselect/eselect-vi-1.1.9 app-eselect/eselect-wine-1.2.2 app-eselect/eselect-wxwidgets-20140423 app-eselect/eselect-xvmc-0.4 app-vim/eselect-syntax-20070506
see https://github.com/gentoo/sci/issues/870