error managing child process

[dnut]

I started using a nested sway display for the first time in several weeks. I encountered a problem the first time I tried to paste something into a window within sway. Nothing came out of the clipboard. Now it has recovered, but I saw some weird error messages occurring in the logs around the same time.

Jun 09 15:42:23 hp1040 env[223179]: ERROR - error getting status of child process 243388: ECHILD: No child processes
Jun 09 15:42:23 hp1040 env[223179]: DEBUG - routinely attempting to kill child process 243388.
Jun 09 15:42:23 hp1040 env[223179]: ERROR - error killing child process 243388: ESRCH: No such process

also saw this a bit earlier

Jun 09 15:23:46 hp1040 env[216387]: thread 'main' panicked at 'child process 221573 panicked too many times.', src/main.rs:81:25
Jun 09 15:23:46 hp1040 env[216387]: note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
Jun 09 15:23:46 hp1040 systemd[189653]: clipboard-sync.service: Main process exited, code=exited, status=101/n/a

full logs from the day are attached

err.log