space out the output of "building ..." in `nixos-rebuild`

[goyalyashpal]

Is your feature request related to a problem? Please describe.

the output of the nixos-rebuild command shows the "building ..." info right alongside the stats this causes a huge portion of it to become clipped.

$ sudo nixos-rebuild --upgrade-all boot
unpacking channels...
building the system configuration...
[2/54/71 built, 103 copied (1197.1/1197.4 MiB), 720.1 MiB DL] building nvidia-settings-550.78 (buildPhase):       | ^~~~~~~

Describe the solution you'd like

• that should be shown in a separate line for readability, as follows. or

  $ sudo nixos-rebuild --upgrade-all boot
  unpacking channels...
  building the system configuration...
  [2/54/71 built, 103 copied (1197.1/1197.4 MiB), 720.1 MiB DL] 
  ----the suggestion 👇----
  building nvidia-settings-550.78 (buildPhase):       | ^~~~~~~
  

Describe alternatives you've considered A clear and concise description of any alternative solutions or features you've considered.

• the clipped aka after the last colon may be removed

  $ sudo nixos-rebuild --upgrade-all boot
  unpacking channels...
  building the system configuration...
  [2/54/71 built, 103 copied (1197.1/1197.4 MiB), 720.1 MiB DL] building nvidia-settings-550.78 (buildPhase)
                                                                                     suggestion here 👆 ~~~^
  

Additional context Add any other context or screenshots about the feature request here.

Priorities

Add :+1: to issues you find important.

[nixos-discourse]

This issue has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/2024-08-28-nix-team-meeting-minutes-173/51302/1

[nixos-discourse]

This issue has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/2024-08-02-nix-team-meeting-minutes-174/51512/1

[tomberek]

No objections, but need to be careful making the progress bar multiline. This can cause other errors and UX degradation.