``` ./pre-inst-env guix import pypi -r linode-cli | tee -a gnu/packages/python-xyz.scm
... In guix/build/syscalls.scm: 2284:35 1 (_) 2273:8 0 (terminal-window-size _) guix/build/syscalls.scm:2273:8: In procedure terminal-window-size: In procedure terminal-window-size: Inappropriate ioctl for device ``` I assume the progress bar code does not gracefully handle the very common case when stdout is not a terminal. Good thing I'm in a local checkout so I can just make it return some constant.