/usr/lib/android-sdk/platform-tools/adb:6:fatal:adb_server_main:adb_commandline:__libc_start_main:_start

The Ubuntu Error Tracker has been receiving reports about a problem regarding android-platform-system-core. This problem was most recently seen with package version 1:8.1.0+r23-8, the problem page at https://errors.ubuntu.com/problem/cbc28b4bec95974ea4cab1966e0d1325db40954f contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/.