| 18 Jan 2026 |
 hexa | off-topic | 15:27:35 |
 Sofie 🏳️⚧️ (she/her) | 👍 | 15:40:37 |
 Erin · she/her · 🏳️⚧️🏳️🌈 | I thought of using impermanence but not sure how good idea would it be for desktop, also considering i almost never reboot | 15:48:10 |
|  isabel changed their profile picture. | 20:43:49 |
| 19 Jan 2026 |
|  bl1nk changed their profile picture. | 10:39:40 |
|  Kaybee (any) changed their display name from Kaybee (any) [52890] to Kaybee (any). | 12:53:01 |
 Linux Hackerman | I'm currently getting FAILED ../tests/functional2/build/test_xattrs.py::test_xattrs_during_build[files0] when building lix from main (7d76467) on macos, is that missing a skip? | 20:15:57 |
 just1602 | Are you running the latest commit, because I think the skip were added already? | 20:16:55 |
 raitobezarius | it should be a skipif I think yeah | 20:21:08 |
 Arian | Is there some way to have a pkgs.closureInfo that adds a drv as if you had done a substitution? Now if you ad a drv path it adds the entire build-time closure | 20:57:24 |
| Arian | Basically; can I in nix create a disk image that has a nix store that looks like it did a nix-instantiate && nix-store--realize where it substituted everything | 20:57:53 |
| raitobezarius | In reply to @arianvp:matrix.org
Is there some way to have a pkgs.closureInfo that adds a drv as if you had done a substitution? Now if you ad a drv path it adds the entire build-time closure Why not unsafe discard? | 22:32:25 |
| 20 Jan 2026 |
 DolceTriade | Hello, I'm hitting an assert in Lix and I'm not entirely sure how to debug further...
nix-daemon: lix/libstore/build/derivation-goal.cc:326: kj::Promise<Result<Goal::WorkResult>> nix::DerivationGoal::outputsSubstitutionTried(): Assertion `false' failed.
I'm running nix develop --impure on our codebase and I see output like this:
fetching git input 'git+https://github.com/zhaofengli/nix-base32.git'
fetching git input 'git+https://github.com/zhaofengli/nix-base32.git'
copying path '/nix/store/x3kqgb3wac95i6l74mi5drvrp7l58bra-nodejs-20.19.1-source' from 'https://cache.nixos.org'...
copying path '/nix/store/1z0543imx3gwb9l4wa8sbzhpxjxxh3s3-git-2.47.2-debug' from 'https://cache.nixos.org'...
error: Nix daemon disconnected unexpectedly (maybe it crashed?)
I've tried removing any custom binary caches and only have cache.nixos.org
| 18:21:34 |
| DolceTriade | * Hello, I'm hitting an assert in Lix and I'm not entirely sure how to debug further...
nix-daemon: lix/libstore/build/derivation-goal.cc:326: kj::Promise<Result<Goal::WorkResult>> nix::DerivationGoal::outputsSubstitutionTried(): Assertion `false' failed.
I'm running nix develop --impure on our codebase and I see output like this:
fetching git input 'git+https://github.com/zhaofengli/nix-base32.git'
fetching git input 'git+https://github.com/zhaofengli/nix-base32.git'
copying path '/nix/store/x3kqgb3wac95i6l74mi5drvrp7l58bra-nodejs-20.19.1-source' from 'https://cache.nixos.org'...
copying path '/nix/store/1z0543imx3gwb9l4wa8sbzhpxjxxh3s3-git-2.47.2-debug' from 'https://cache.nixos.org'...
error: Nix daemon disconnected unexpectedly (maybe it crashed?)
I've tried removing any custom binary caches and only have cache.nixos.org
nix --version
nix (Lix, like Nix) 2.94.0
| 18:22:48 |
| raitobezarius | do you have a flake reference to reproduce it? | 18:27:37 |
| DolceTriade | No, I haven't tried to create a minimal repro yet because I didn't understand why this is happening so if I were to try, it would be a random guess, so i was hoping for more insight on where to direct my attention, but if that's the first step, I can try. | 18:29:31 |
 K900 | Core dump would be nice | 18:29:56 |
| K900 | Or a backtrace at least | 18:30:01 |
| DolceTriade | Yeah, I was surprised I didn't see a coredump in systemd | 18:30:55 |
| DolceTriade | I guess since the nix-daemon is crashing, I probably have to edit the systemd file to set the ulimits to allow for core generation? | 18:41:07 |
| DolceTriade | I guess I managed to get it to load by commenting out parts of my flake and adding them back line by line until it built 🤷 | 19:13:59 |
| DolceTriade | The parts that were failing were part of a custom binary cache | 19:14:29 |
| raitobezarius | so a misbehaving binary cache perhaps? | 19:18:36 |
| raitobezarius | still, we shouldn't crash because of that | 19:18:52 |
| DolceTriade | Yes, that seems likely. | 19:19:55 |
| raitobezarius | if we can get access to it and have a reproducer in a bug issue, we can look into that | 19:20:41 |
| raitobezarius | we would debug it via gdb and look into the state machine | 19:20:49 |
| DolceTriade | We're using attic as our binary cache and I guess we discovered that one of binary cache uploads failed. Dunno how to reproduce this. I can try to build a reproducer. | 19:22:20 |
| DolceTriade | * We're using attic as our binary cache and I guess we discovered that one of binary cache uploads failed. Dunno how to reproduce this. I can try to build a reproducer that simulates a similar situation | 19:22:36 |
| DolceTriade | * We're using attic as our binary cache and I guess we discovered that one of binary cache uploads failed. Dunno how to reproduce this. I can try to build a reproducer that simulates a similar situation. We have to pin to specific random versions for legacy reasons. :( | 19:22:54 |
