Now what did I do? Doesn't finish compiling

I’ve uploaded this code successfully before. I picked another one that works, and the same thing happens.
It runs through until it gets here, and then it stops. I’ve restarted the task a bunch of times, and it does nothing.

Compiling .pio\build\uno\FrameworkArduino\wiring_pulse.S.o
Compiling .pio\build\uno\FrameworkArduino\wiring_pulse.c.o
Compiling .pio\build\uno\FrameworkArduino\wiring_shift.c.o
Archiving .pio\build\uno\libFrameworkArduino.a

That’s it. It stops and does nothing further when it gets to the Archiving step.
Can this be my fault?