Already for the third day, emerge-webrsyc says me that my "current local timestamp is possibly identical to the * timestamp of the latest snapshot," so I began to worry if this way of syncing my portage tree still works and will work in the future.
# emerge-webrsync Fetching most recent snapshot ... Trying to retrieve 20150811 snapshot from http://mirror.netcologne.de/gentoo ... Fetching file portage-20150811.tar.xz.md5sum ... Fetching file portage-20150811.tar.bz2.md5sum ... Fetching file portage-20150811.tar.gz.md5sum ... Trying to retrieve 20150811 snapshot from http://de-mirror.org/gentoo ... Fetching file portage-20150811.tar.xz.md5sum ... Fetching file portage-20150811.tar.bz2.md5sum ... Fetching file portage-20150811.tar.gz.md5sum ... 20150811 snapshot was not found Trying to retrieve 20150810 snapshot from http://mirror.netcologne.de/gentoo ... Fetching file portage-20150810.tar.xz.md5sum ... Fetching file portage-20150810.tar.bz2.md5sum ... Fetching file portage-20150810.tar.gz.md5sum ... Trying to retrieve 20150810 snapshot from http://de-mirror.org/gentoo ... Fetching file portage-20150810.tar.xz.md5sum ... Fetching file portage-20150810.tar.bz2.md5sum ... Fetching file portage-20150810.tar.gz.md5sum ... 20150810 snapshot was not found Trying to retrieve 20150809 snapshot from http://mirror.netcologne.de/gentoo ... Fetching file portage-20150809.tar.xz.md5sum ... Fetching file portage-20150809.tar.bz2.md5sum ... Fetching file portage-20150809.tar.gz.md5sum ... Trying to retrieve 20150809 snapshot from http://de-mirror.org/gentoo ... Fetching file portage-20150809.tar.xz.md5sum ... Fetching file portage-20150809.tar.bz2.md5sum ... Fetching file portage-20150809.tar.gz.md5sum ... 20150809 snapshot was not found * Latest snapshot date: 20150808 * * Approximate snapshot timestamp: 1439081100 * Current local timestamp: 1439080501 * * The current local timestamp is possibly identical to the * timestamp of the latest snapshot. In order to force sync, use * the --revert option or remove the timestamp file located at * '/usr/portage/metadata/timestamp.x'.