ci: use Debian Bullseye in ARM CI #22994

1. 
   fanquake commented at 8:03 am on September 16, 2021: member

   This works around an issue when trying to use std::filesystem::remove_all with the ARM GCC on Buster. Has been split out of #20744.

   See commentary starting here: #20744 (comment). Also: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93201.

2. ci: use Debian Bullseye in ARM CI

   This works around an issue when trying to use `std::filesystem::remove_all`
   with the ARM GCC on Buster. Has been split out of #20744.
   
   See comments starting here:
   https://github.com/bitcoin/bitcoin/pull/20744#issuecomment-810279549.
   Also: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93201.

   252d1a70fb
3. fanquake added the label Tests on Sep 16, 2021
4. 
   MarcoFalke commented at 8:11 am on September 16, 2021: member

   We currently use gcc 8.4 for the arm guix builds. Should this be bumped to gcc 10.3?
5. 
   fanquake commented at 8:22 am on September 16, 2021: member

   We currently use gcc 8.4 for the arm guix builds. Should this be bumped to gcc 10.3?

   To match the base GCC in Buster it’d be 10.2, however if we were doing this, I don’t think it should be part of this PR. Maybe another PR separate from #20744 that takes care of the more involved build system changes. There is at least some Guix changes required for the Windows build as well.

6. 
   MarcoFalke commented at 8:24 am on September 16, 2021: member

   Nvm. Looks like this has been backported to gcc 8 after all: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81091#c9
7. 
   MarcoFalke commented at 8:25 am on September 16, 2021: member

   cr ACK 252d1a70fb452893efe4ab64298139eb08d8ac98

   Buster is on gcc 8.3, and it doesn’t look like they are going to bump to 8.4 any time soon, so moving to the next debian release seems ok.

8. 
   fanquake commented at 8:30 am on September 16, 2021: member

   Buster is on gcc 8.3, and it doesn’t look like they are going to bump to 8.4 any time soon, so moving to the next debian release seems ok.

   Yes, GCC-8 on Buster was bumped from 8.2 to 8.3 in Feb 2019, and received it’s last update in April 2019.

9. hebasto approved
10. 
    hebasto commented at 8:50 am on September 16, 2021: member

    ACK 252d1a70fb452893efe4ab64298139eb08d8ac98, I have reviewed the code and it looks OK, I agree it can be merged.
11. MarcoFalke referenced this in commit 87780dfee8 on Sep 16, 2021
12. MarcoFalke added the label DrahtBot Guix build requested on Sep 16, 2021
13. MarcoFalke removed the label DrahtBot Guix build requested on Sep 16, 2021
14. MarcoFalke added this to the milestone Future on Sep 16, 2021
15. MarcoFalke removed this from the milestone Future on Sep 16, 2021
16. 
    MarcoFalke commented at 9:07 am on September 16, 2021: member

    This was merged, but not marked as merged by GitHub.
17. fanquake closed this on Sep 16, 2021

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18. fanquake deleted the branch on Sep 16, 2021
19. fanquake locked this on Sep 18, 2021

Contributors
fanquake MarcoFalke hebasto

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