Removing CWD causes warnings in subsequent commands

[aureq]

Hi,

When removing /usr/src/python the current working directory is also the directory being removed. This causes subsequent commands to complain about not being able to locate the current working directory.

python/3.8/buster/slim/Dockerfile

Lines 75 to 76 in 6e97890

	&& make install \
	&& rm -rf /usr/src/python \

As a potential fix, changing the current working directory to / would prevent these warnings :

&& make install \
&& cd / \
&& rm -rf /usr/src/python \

I guess this is mostly a cosmetic change but I'm not sure if the warnings could cause problems with the commands after.

[tianon]

Yeah, this would probably make sense (although I think it is mostly cosmetic -- we haven't seen any issues with the commands we run after that needing their working directory to exist).

[tianon]

Fixed as part of #687 👍