(for PR #28015)

2025-06-16 12:34.20: New job: Lint
2025-06-16 12:34.20: Checking out commit eb1839f6. To reproduce:
                       git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/28015/head" && git reset --hard eb1839f6
2025-06-16 12:34.20: Exec: "cp" "-a" "--" "/var/lib/ocurrent/var/git/opam-repository.git-a0bc4b41ddb868605dc1500002c27cfa79faf4389fe53b6754817ea16b48d458/.git" 
                           "/tmp/git-checkout23393c9d"
2025-06-16 12:34.21: Exec: "git" "-C" "/tmp/git-checkout23393c9d" "submodule" 
                           "deinit" "--force" "--all"
2025-06-16 12:34.21: Exec: "git" "-C" "/tmp/git-checkout23393c9d" "reset" 
                           "--hard" "-q" "eb1839f6536e00144ff383f35c0878f9cb0c30a2"
2025-06-16 12:34.24: Exec: "git" "-c" "protocol.file.allow=always" "-C" 
                           "/tmp/git-checkout23393c9d" "submodule" "update" 
                           "--recursive" "--init" "--no-fetch"
2025-06-16 12:34.24: Exec: "git" "merge" "-q" "--" "c7269f729a780d8cad2232be10de94ac8da8381e"

To reproduce locally, on the opam-repository PR branch, run: 

    opam pin opam-ci-check git+https://github.com/ocurrent/opam-repo-ci.git#live
    opam-ci-check lint --opam-repository . z3.4.15.1:new=false

2025-06-16 12:34.25: Exec: "opam-ci-check" "lint" "--opam-repository" 
                           "." "z3.4.15.1:new=false"
Linting opam-repository at /tmp/git-checkout23393c9d/. ...
Error in z3.4.15.1: conf packages should always use the 'conf-' name prefix, the 'conf' flag, and the 'depext' field all together, but this package only has a non-empty 'depext' field
2025-06-16 12:34.52: Job failed: Error in z3.4.15.1: conf packages should always use the 'conf-' name prefix, the 'conf' flag, and the 'depext' field all together, but this package only has a non-empty 'depext' field