Merge pull request #243859 from blaggacao/fix-maturin-hook-with-python-hooks

pkgs/build-support/rust/hooks/maturin-build-hook.sh

···
         ${maturinBuildFlags-}
     )
 
-    runHook postBuild
-
     if [ ! -z "${buildAndTestSubdir-}" ]; then
         popd
     fi
···
     # Move the wheel to dist/ so that regular Python tooling can find it.
     mkdir -p dist
     mv target/wheels/*.whl dist/
+
+    # These are python build hooks and may depend on ./dist
+    runHook postBuild
 
     echo "Finished maturinBuildHook"
 }

pkgs/servers/matrix-synapse/plugins/rendezvous.nix

···
     maturinBuildHook
   ]);
 
-  preBuild = ''
-    cd synapse
-  '';
+  buildAndTestSubdir = "synapse";
 
-  postBuild = ''
-    cd ..
-  '';
 
   pythonImportsCheck = [ "matrix_http_rendezvous_synapse" ];