Hello,
Bone Baboon writes:
> `guix describe` outputs:
>
> ```
> Generation 24 May 12 2021 18:06:24(current)
> guix d6aeebb
> repository URL: https://git.savannah.gnu.org/git/guix.git
> branch: master
> commit: d6aeebb23639258311fdfb9dbf5f903079fde51a
> ```
>
> `guix challenge /gnu/store/cdhgn2y3xzmbxfzkzzlm9fb7q70paxvz-rav1e-0.3.5`
> outputs:
>
> ```
> /gnu/store/cdhgn2y3xzmbxfzkzzlm9fb7q70paxvz-rav1e-0.3.5 contents differ:
> local hash: 0lr47rfaq41yn3sbf86xnwpsrgvi38ifi3hx5dz3cm5iinfwaxc0
>
> https://ci.guix.gnu.org/nar/lzip/cdhgn2y3xzmbxfzkzzlm9fb7q70paxvz-rav1e-0.3.5:
> 17g58f754k0n5hwiysb88cz9fg82di2j244zzh9mnv6a172y4xjb
> differing file:
> /share/cargo/registry/rav1e-0.3.5.crate
>
> 1 store items were analyzed:
> - 0 (0.0%) were identical
> - 1 (100.0%) differed
> - 0 (0.0%) were inconclusive
> ```
>
> `guix challenge --diff=diffoscope
> /gnu/store/cdhgn2y3xzmbxfzkzzlm9fb7q70paxvz-rav1e-0.3.5` outputs:
>
> ```
> /gnu/store/cdhgn2y3xzmbxfzkzzlm9fb7q70paxvz-rav1e-0.3.5 contents differ:
> local hash: 0lr47rfaq41yn3sbf86xnwpsrgvi38ifi3hx5dz3cm5iinfwaxc0
>
> https://ci.guix.gnu.org/nar/lzip/cdhgn2y3xzmbxfzkzzlm9fb7q70paxvz-rav1e-0.3.5:
> 17g58f754k0n5hwiysb88cz9fg82di2j244zzh9mnv6a172y4xjb
> --- /tmp/guix-directory.3zSn14
> +++ /gnu/store/cdhgn2y3xzmbxfzkzzlm9fb7q70paxvz-rav1e-0.3.5
> │ --- /tmp/guix-directory.3zSn14/share
> ├── +++ /gnu/store/cdhgn2y3xzmbxfzkzzlm9fb7q70paxvz-rav1e-0.3.5/share
> │ │ --- /tmp/guix-directory.3zSn14/share/cargo
> │ ├── +++ /gnu/store/cdhgn2y3xzmbxfzkzzlm9fb7q70paxvz-rav1e-0.3.5/share/cargo
> │ │ │ --- /tmp/guix-directory.3zSn14/share/cargo/registry
> │ │ ├── +++
> /gnu/store/cdhgn2y3xzmbxfzkzzlm9fb7q70paxvz-rav1e-0.3.5/share/cargo/registry
> │ │ │ │ ---
> /tmp/guix-directory.3zSn14/share/cargo/registry/rav1e-0.3.5.crate
> │ │ │ ├── +++
> /gnu/store/cdhgn2y3xzmbxfzkzzlm9fb7q70paxvz-rav1e-0.3.5/share/cargo/registry/rav1e-0.3.5.crate
> │ │ │ │ ├── rav1e-0.3.5.crate-content
> │ │ │ │ │ ├── file list
> │ │ │ │ │ │ @@ -1,9 +1,9 @@
> │ │ │ │ │ │ --rw-r--r-- 00039196 2021-04-03
> 18:35:22.00 rav1e-0.3.5/Cargo.lock
> │ │ │ │ │ │ --rw-r--r-- 000 4228 2021-04-03
> 18:35:22.00 rav1e-0.3.5/Cargo.toml
> │ │ │ │ │ │ +-rw-r--r-- 00039196 2021-04-21
> 15:38:10.00 rav1e-0.3.5/Cargo.lock
> │ │ │ │ │ │ +-rw-r--r-- 000 4228 2021-04-21
> 15:38:10.00 rav1e-0.3.5/Cargo.toml
> │ │ │ │ │ │ -rw-r--r-- 0 9993 4228 2020-12-31
> 14:44:40.00 rav1e-0.3.5/Cargo.toml.orig
> │ │ │ │ │ │ -rw-r--r-- 0 9993 1332 2020-11-16
> 12:40:01.00 rav1e-0.3.5/LICENSE
> │ │ │ │ │ │ -rw-r--r-- 0 9993 5702 2017-09-24
> 10:10:31.00 rav1e-0.3.5/PATENTS
> │ │ │ │ │ │ -rw-r--r-- 0 9993 5820 2020-12-31
> 12:00:53.00 rav1e-0.3.5/README.md
> │ │ │ │ │ │ -rw-r--r-- 0 9993 4333 2020-12-31
> 12:00:53.00 rav1e-0.3.5/build.rs
> │ │ │ │ │ │ -rw-r--r-- 0 9993 423 2020-12-31
> 12:00:53.00 rav1e-0.3.5/cbindgen.toml
> │ │ │ │ │ │ -rw-r--r-- 0 9993 3579 2020-12-31
> 12:00:53.00 rav1e-0.3.5/src/activity.rs
>
> 1 store items were analyzed:
> - 0 (0.0%) were identical
> - 1 (100.0%) differed
> - 0 (0.0%) were inconclusive
> ```
Still reproducible with 0.4.1. It seems the generated files uid/gid are
causing the discrepancy. Not sure how that comes to be. Needs
investigation. I see nix passes '--frozen' to cargo, but that doesn't
work for us: "Cargo.lock needs to be updated but --frozen was passed to
prevent this". Not sure if it's key.
To be investigated!
Thanks for the report,
Maxim
