merge stdout and stderr logs

[myaaaaaaaaa]

Makes it easier to trace what happened without having to match events across two separate files.

How it works:

# stdout captured but not stderr
$ bash -ex -c 'echo hi'  >greet.log
+ echo hi
$ cat greet.log
hi


# stderr captured but not stdout
$ bash -ex -c 'echo hi'  2>greet.log
hi
$ cat greet.log
+ echo hi


# both streams captured
$ bash -ex -c 'echo hi'  >greet.log 2>&1
$ cat greet.log
+ echo hi
hi

[zowoq]

@rhendric was there a reason you had these separate?

[rhendric]

Only that it's easier to destroy information than reconstruct it.

But OP's concern is entirely theoretical; there are no stdout logs. Scratch that, the workers have stdout.

[rhendric]

This seems like an X-Y problem. OP is the person trying to jerry-rig maintainer notifications by scraping every log; if we're going to make infra changes to support them, they should be the changes needed to expose the needed information directly, not changes that still require them to scrape megabytes of output to get what they want.

[zowoq]

I'll close this in favour of nix-community/nixpkgs-update#520.