Another interesting data point is that both gcc and libglib were upgraded when the failure started to occur:
build 976 (the last build that succeeds): gcc 4.9.2-10ubuntu1 , libglib2.0 2.43.2-1ubuntu1
build 977 (the first build that fails): gcc 4.9.2-10ubuntu2 , libglib2.0 2.43.3-1
Another interesting data point is that both gcc and libglib were upgraded when the failure started to occur:
build 976 (the last build that succeeds): gcc 4.9.2-10ubuntu1 , libglib2.0 2.43.2-1ubuntu1
build 977 (the first build that fails): gcc 4.9.2-10ubuntu2 , libglib2.0 2.43.3-1