Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: dune_3 3.20.2 -> 3.21.0 https://github.com/ocaml/dune/releases
attrpath: dune_3
Checking auto update branch...
No auto update branch exists
[version] 
[version] updated version and sha256
[rustCrateVersion] 
[rustCrateVersion] No cargoHash found
[golangModuleVersion] 
[golangModuleVersion] Not a buildGoModule package with vendorHash
[npmDepsVersion] 
[npmDepsVersion] No npmDepsHash
[updateScript] 
[updateScript] skipping because derivation has no updateScript
Diff after rewrites:
diff --git a/pkgs/by-name/du/dune/package.nix b/pkgs/by-name/du/dune/package.nix
index 9dfc90173f12..b36e7583b8c5 100644
--- a/pkgs/by-name/du/dune/package.nix
+++ b/pkgs/by-name/du/dune/package.nix
@@ -3,7 +3,7 @@
   stdenv,
   fetchurl,
   ocamlPackages,
-  version ? "3.20.2",
+  version ? "3.21.0",
 }:
 
 stdenv.mkDerivation {
@@ -18,7 +18,7 @@ stdenv.mkDerivation {
       "https://github.com/ocaml/dune/releases/download/${version}/dune-${sfx}${version}.tbz";
     hash =
       {
-        "3.20.2" = "sha256-sahrLWC9tKi5u2hhvfL58opufLXYM86Br+zOue+cpUk=";
+        "3.21.0" = "sha256-521NiTaKCnACUZOur098W1QDHbo/Wb+dKvGXHcDs7d0=";
         "2.9.3" = "sha256:1ml8bxym8sdfz25bx947al7cvsi2zg5lcv7x9w6xb01cmdryqr9y";
       }
       ."${version}";

Successfully finished processing
Automatic update generated by [nixpkgs-update](https://github.com/nix-community/nixpkgs-update) tools. This update was made based on information from https://github.com/ocaml/dune/releases.

meta.description for dune_3 is: Composable build system

meta.homepage for dune_3 is: https://dune.build/

meta.changelog for dune_3 is: https://github.com/ocaml/dune/raw/3.21.0/CHANGES.md


###### Updates performed
- Version update

###### To inspect upstream changes

- [Release on GitHub](https://github.com/ocaml/dune/releases/tag/3.21.0)

- [Compare changes on GitHub](https://github.com/ocaml/dune/compare/3.20.2...3.21.0)

###### Impact

<b>Checks done</b>

---

- built on NixOS

> [!CAUTION]
> A test defined in `passthru.tests` did not pass.
- found 3.21.0 with grep in /nix/store/22y7hx3dz3wswnrchfvd73h4cwjx10w5-dune-3.21.0
- found 3.21.0 in filename of file in /nix/store/22y7hx3dz3wswnrchfvd73h4cwjx10w5-dune-3.21.0

---

<details>
<summary>
<b>Rebuild report</b> (if merged into master) (click to expand)
</summary>

```
2872 total rebuild path(s)

2872 package rebuild(s)

First fifty rebuilds by attrpath

abella
acgtk
advi
alt-ergo
anders
beluga
caper
cerberus
cmdstan
coccinelle
comby
compcert
coq
coq-kernel
coqPackages.Cheerios
coqPackages.CoLoR
coqPackages.ExtLib
coqPackages.HoTT
coqPackages.ITree
coqPackages.InfSeqExt
coqPackages.MenhirLib
coqPackages.QuickChick
coqPackages.StructTact
coqPackages.autosubst
coqPackages.autosubst-ocaml
coqPackages.bignums
coqPackages.ceres
coqPackages.compcert
coqPackages.coq
coqPackages.coq-elpi
coqPackages.coq-hammer
coqPackages.coq-hammer-tactics
coqPackages.coq-lsp
coqPackages.coq-record-update
coqPackages.coqeal
coqPackages.coquelicot
coqPackages.coqutil
coqPackages.deriving
coqPackages.dpdgraph
coqPackages.equations
coqPackages.extructures
coqPackages.fcsl-pcm
coqPackages.flocq
coqPackages.fourcolor
coqPackages.gaia
coqPackages.graph-theory
coqPackages.hierarchy-builder
coqPackages.interval
coqPackages.iris
```

</details>

<details>
<summary>
<b>Instructions to test this update</b> (click to expand)
</summary>

---

Either **download from the cache**:
```
nix-store -r /nix/store/22y7hx3dz3wswnrchfvd73h4cwjx10w5-dune-3.21.0 \
  --option binary-caches 'https://cache.nixos.org/ https://nixpkgs-update-cache.nix-community.org/' \
  --option trusted-public-keys '
  nixpkgs-update-cache.nix-community.org-1:U8d6wiQecHUPJFSqHN9GSSmNkmdiFW7GW7WNAnHW0SM=
  cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
  '
```
(The nixpkgs-update cache is only trusted for this store-path realization.)
For the cached download to work, your user must be in the `trusted-users` list or you can use `sudo` since root is effectively trusted.

Or, **build yourself**:
```
nix-build -A dune_3 https://github.com/r-ryantm/nixpkgs/archive/bd439188ce23cbde2e6b4310cf5df6695d6d17e8.tar.gz
```
Or:
```
nix build github:r-ryantm/nixpkgs/bd439188ce23cbde2e6b4310cf5df6695d6d17e8#dune_3
```

After you've downloaded or built it, look at the files and if there are any, run the binaries:
```
ls -la /nix/store/22y7hx3dz3wswnrchfvd73h4cwjx10w5-dune-3.21.0
ls -la /nix/store/22y7hx3dz3wswnrchfvd73h4cwjx10w5-dune-3.21.0/bin
```

---

</details>
<br/>



### Pre-merge build results

Nixpkgs review skipped

---

###### Maintainer pings

cc @vbgl for [testing](https://github.com/nix-community/nixpkgs-update/blob/main/doc/nixpkgs-maintainer-faq.md#r-ryantm-opened-a-pr-for-my-package-what-do-i-do).

> [!TIP]
> As a maintainer, if your package is located under `pkgs/by-name/*`, you can comment **`@NixOS/nixpkgs-merge-bot merge`** to automatically merge this update using the [`nixpkgs-merge-bot`](https://github.com/NixOS/nixpkgs/blob/master/ci/README.md#nixpkgs-merge-bot).

---

Add a :+1: [reaction] to [pull requests you find important].

[reaction]: https://github.blog/2016-03-10-add-reactions-to-pull-requests-issues-and-comments/
[pull requests you find important]: https://github.com/NixOS/nixpkgs/pulls?q=is%3Aopen+sort%3Areactions-%2B1-desc
https://api.github.com/repos/NixOS/nixpkgs/pulls/479471