Error building firmware image for linksys,wrt1200ac

Long story short:

{
    "url": "https://sysupgrade.openwrt.org",
    "revision": "r19803-9a599fee93",
    "advanced_mode": "1",
    "branch": "22.03",
    "efi": null,
    "profile": "linksys,wrt1200ac",
    "target": "mvebu/cortexa9",
    "version": "22.03.5",
    "packages": [
        "base-files",
        "busybox",
        "ca-bundle",
        "cgi-io",
        "dnsmasq",
        "dropbear",
        "firewall",
        "fstools",
        "fwtool",
        "getrandom",
        "ip6tables-nft",
        "iptables-nft",
        "iwinfo",
        "jshn",
        "jsonfilter",
        "kernel",
        "kmod-gpio-button-hotplug",
        "kmod-ip6tables",
        "kmod-ipt-conntrack",
        "kmod-ipt-core",
        "kmod-ipt-nat",
        "kmod-ipt-offload",
        "kmod-lib-crc-ccitt",
        "kmod-mwlwifi",
        "kmod-nf-conntrack",
        "kmod-nf-conntrack6",
        "kmod-nf-flow",
        "kmod-nf-ipt",
        "kmod-nf-ipt6",
        "kmod-nf-nat",
        "kmod-nf-reject",
        "kmod-nf-reject6",
        "kmod-ppp",
        "kmod-pppoe",
        "kmod-pppox",
        "kmod-slhc",
        "libblobmsg-json",
        "libc",
        "libip4tc",
        "libip6tc",
        "libiwinfo",
        "libiwinfo-data",
        "libiwinfo-lua",
        "libjson-c",
        "libjson-script",
        "liblua",
        "liblucihttp",
        "liblucihttp-lua",
        "libnl-tiny",
        "libubox",
        "libubus",
        "libubus-lua",
        "libuci",
        "libuclient",
        "libustream-wolfssl",
        "libwolfssl",
        "libxtables",
        "logd",
        "lua",
        "luci",
        "luci-app-attendedsysupgrade",
        "luci-app-firewall",
        "luci-app-opkg",
        "luci-base",
        "luci-lib-base",
        "luci-lib-ip",
        "luci-lib-jsonc",
        "luci-lib-nixio",
        "luci-mod-admin-full",
        "luci-mod-network",
        "luci-mod-status",
        "luci-mod-system",
        "luci-proto-ipv6",
        "luci-proto-ppp",
        "luci-ssl",
        "luci-theme-bootstrap",
        "mtd",
        "mwlwifi-firmware-88w8864",
        "netifd",
        "odhcp6c",
        "odhcpd-ipv6only",
        "openwrt-keyring",
        "opkg",
        "ppp",
        "ppp-mod-pppoe",
        "procd",
        "px5g-wolfssl",
        "rpcd",
        "rpcd-mod-file",
        "rpcd-mod-iwinfo",
        "rpcd-mod-luci",
        "rpcd-mod-rrdns",
        "ubi-utils",
        "uboot-envtools",
        "ubox",
        "ubus",
        "ubusd",
        "uci",
        "uclient-fetch",
        "uhttpd",
        "uhttpd-mod-ubus",
        "urandom-seed",
        "urngd",
        "usign",
        "wpad-basic-wolfssl"
    ],
    "diff_packages": true,
    "filesystem": "squashfs",
    "client": "luci/git-22.210.54153-69231a7"
}

The issue provides an ASU request for profile linksys,wrt1200ac on branch 22.03, but no error output, file, test, or entry point. Start by reproducing the request at sysupgrade.openwrt.org and inspect the image-build failure for that target. Done means the firmware image builds successfully and the cause is covered by an appropriate regression check.