buildx failed with: ERROR: failed to solve: process "/bin/sh -c gpg --batch --keyserver keys.openpgp.org --recv-keys $GPG_KEY && curl -sSfL -O https://downloads.haskell.org/~ghcup/$GHCUP_VERSION/i386-linux-ghcup-$GHCUP_VERSION && curl -sSfL -O https://downloads.haskell.org/~ghcup/$GHCUP_VERSION/SHA256SUMS && curl -sSfL -O https://downloads.haskell.org/~ghcup/$GHCUP_VERSION/SHA256SUMS.sig && gpg --verify SHA256SUMS.sig SHA256SUMS && sha256sum -c --ignore-missing SHA256SUMS && mv i386-linux-ghcup-$GHCUP_VERSION /usr/bin/ghcup && chmod +x /usr/bin/ghcup && rm -rf SHA256SUMS SHA256SUMS.sig" did not complete successfully: exit code: 2