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Description
This cp fails if the tree contains symlinks that cannot be derefenced (-L).
A real world use case can be found at #361181.
This allows to work around the issue:
diff --git a/pkgs/build-support/rust/import-cargo-lock.nix b/pkgs/build-support/rust/import-cargo-lock.nix
index e88931d0f383..5613248b4959 100644
--- a/pkgs/build-support/rust/import-cargo-lock.nix
+++ b/pkgs/build-support/rust/import-cargo-lock.nix
@@ -149,6 +149,10 @@ let
inherit (gitParts) url;
rev = gitParts.sha; # The commit SHA is always available.
sha256 = gitShaOutputHash.${gitParts.sha};
+ postFetch = ''
+ # Find and remove dangling symlinks.
+ find $out -xtype l -print -delete
+ '';
}
else if allowBuiltinFetchGit then
builtins.fetchGit {Metadata
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