If you build Shadow with rust 1.89.0 in release mode, most of the tests fail.

Since Shadow works fine with rust 1.89.0 in debug mode, it's probably an issue due to optimizations. I think it's likely that we have UB, or there's a miscompilation bug somewhere.

Shadow runs fine when built with rust 1.88.0 in both debug and release mode.

(@sporksmith I had previously mistakenly thought that it was a bug in newer distros, not newer rust versions.)

Example:

general:
  stop_time: 10 seconds
network:
  graph:
    type: 1_gbit_switch
hosts:
  testnode:
    network_node_id: 0
    processes:
    - path: python3
      args: -u -c "print('foo')"

Error: process 'testnode.python3.13.1000' exited with status Signaled(Signal(11)); expected end state was exited: 0 but was signaled: SIGSEGV
Error: Failed to run the simulation
Error: 
Error: Caused by:
Error:     1 managed processes in unexpected final state