| 21 Jun 2026 |
 Mic92 | hexa (signing key rotation when): I assume you rolled up the nix-index bump for nix-channel scripts? https://github.com/NixOS/infra/pull/1094 | 22:02:04 |
| Mic92 | I haven't actually checked if zstd was the issue for thing being slow. | 22:02:22 |
 hexa (signing key rotation when) | you mean deployed? I think so | 22:02:22 |
| hexa (signing key rotation when) | I haven't looked at the infra all day tbh | 22:02:34 |
| Mic92 | * I haven't actually checked if zstd was the issue for the thing being slow. | 22:02:34 |
| hexa (signing key rotation when) | the next big bump is nixos-26.05 | 22:02:41 |
| Mic92 | Alright. if we see it still being slow, I can attach to the machine and check what is going on | 22:03:12 |
| Mic92 | would a rebuild help? I improved the error message here: https://github.com/NixOS/hydra/commit/4b62918515e630de6f7f1b74765ecc092d8845b6 | 22:04:53 |
| Mic92 | Also I haven't done anything about the DependencyFailed error not having enough context | 22:06:24 |
 Lun | rebuilt, still not seeing what the failed dep for it is.
Failed: Build failure: build failed: DependencyFailed: Cannot build '/nix/store/gxfzj17rq3m7q0d41j18ny3m9ppvhh5c-hipcc-22.0.0-rocm.drv'. Reason: 1 dependency failed. Output paths: /nix/store/h8hpmq8gxb9iapnp8mi70l2g5m7dpdrh-hipcc-22.0.0-rocm
| 22:06:38 |
| Mic92 | Ah. This is actually coming from nix | 22:07:58 |
| Mic92 | I have to compare how nix comes up with its error message | 22:08:25 |
| Mic92 | not so intuitive at all, but for now you can see that the clang build below was failing. I have to think a bit about where I should put the dependency chain in the best case. | 22:19:31 |
| Mic92 | That 'unsupported system type' might be now resolved | 22:20:58 |
| Lun | clicking through to the clang build it looks healthy https://hydra.nixos.org/build/331652474 | 22:21:05 |
| Lun | * clicking through to the clang/llvm builds that are both linked below, they look healthy https://hydra.nixos.org/build/331652474 https://hydra.nixos.org/build/331651308 | 22:24:03 |
| Mic92 | https://github.com/NixOS/hydra/issues/1806 somewhat related to this issue | 22:26:13 |
| Mic92 | However it's getting to late for me to look more into it | 22:26:37 |
| Mic92 | Interestingly the old hydra seemed to have even showed less information on the first glance? | 22:27:06 |
| Mic92 | * Interestingly the old hydra seemed to have even showed less information on the first glance for these types of dependency errors | 22:27:20 |
| hexa (signing key rotation when) | release-26.05-small keeps failing | 22:28:04 |
| hexa (signing key rotation when) | https://hydra.nixos.org/build/331755138 | 22:28:05 |
| hexa (signing key rotation when) | 
Download | 22:30:09 |
| hexa (signing key rotation when) | hrm | 22:30:10 |
| hexa (signing key rotation when) |
Failed: Build failure: build failed: DependencyFailed: Cannot build '/nix/store/8jfm8iwa0fyc50z94nrg4igv3fxmllyg-system-units.drv'. Reason: 1 dependency failed. Output paths: /nix/store/fbf06lw090d1fk6966qjagr4dkmq3rlk-system-units (log, raw, tail)
| 22:33:57 |
| hexa (signing key rotation when) | [root@goofy-hopcroft:~]# nix-build /nix/store/8jfm8iwa0fyc50z94nrg4igv3fxmllyg-system-units.drv
error: path '/nix/store/8jfm8iwa0fyc50z94nrg4igv3fxmllyg-system-units.drv' is required, but there is no substituter that can build it
| 22:34:07 |
| hexa (signing key rotation when) | the derivation isn't on that machine 👀 | 22:34:26 |
| Mic92 | I don't think derivations are put on builders anymore | 22:36:04 |
| Mic92 | only inputs | 22:36:14 |
| Mic92 | You could nix copy the derivation from mimas if you wanted | 22:36:49 |
