buildx failed with: ERROR: failed to solve: process "/bin/sh -c if [ \"$TARGETPLATFORM\" = 'darwin/amd64' ]; then cp artifact/x86_64-apple-darwin/cpuusage . ;elif [ \"$TARGETPLATFORM\" = 'darwin/arm64' ]; then cp artifact/aarch64-apple-darwin/cpuusage . ;elif [ \"$TARGETPLATFORM\" = 'linux/amd64' ]; then cp artifact/x86_64-unknown-linux-musl/cpuusage . ;elif [ \"$TARGETPLATFORM\" = 'linux/arm64' ]; then cp artifact/aarch64-unknown-linux-musl/cpuusage . ;fi" did not complete successfully: exit code: 1