fix tracer crashes and other errors

[codecov[bot]]

Codecov Report

Attention: 11 lines in your changes are missing coverage. Please review.

Files	Coverage Δ
lib/rust/k8s/container_state.rs	100.00% <100.00%> (ø)
lib/rust/k8s/owners.rs	94.44% <100.00%> (+0.32%)	:arrow_up:
driver/main.rs	0.00% <0.00%> (ø)
lib/rust/k8s/gvk.rs	19.23% <60.00%> (+2.56%)	:arrow_up:
lib/rust/k8s/pod_lifecycle.rs	85.49% <80.00%> (-1.58%)	:arrow_down:
tracer/main.rs	0.00% <0.00%> (ø)

:loudspeaker: Thoughts on this report? Let us know!.