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The caller in pkg/compose/cp.go unconditionally defers res.Content.Close() once the call succeeds. The dry-run client returned a zero-value result with a nil Content reader, so `docker compose cp --dry-run <ctr>:<path> <dst>` panicked with a nil pointer dereference. Return an empty NopCloser instead, matching the pattern already used for the other stream results in this file. Signed-off-by: Guillaume Lours <[email protected]>