1 2 Found a potentially leaking cycle starting from a GC root: 3 ./cycle_sub.h:31:5: blink::C (m_a) => blink::A 4 ./cycle_sub.h:22:11: blink::A (<subclass>) => blink::B 5 ./cycle_sub.h:26:5: blink::B (m_c) => blink::C 6 7