buildx failed with: ERROR: failed to solve: process "/bin/sh -c opam init -a --disable-sandboxing --yes --bare && opam switch create 5.2.0+flambda2 --yes --repos \"with-extensions=git+https://github.com/janestreet/opam-repository.git#with-extensions,default\" && eval $(opam env --switch 5.2.0+flambda2) && opam install --yes ocamlformat merlin ocaml-lsp-server utop && opam install --yes parallel core_unix" did not complete successfully: exit code: 40