(lint-fmt)

2026-01-20 15:53.27: New job: test mirage/mirage-skeleton https://github.com/mirage/mirage-skeleton.git#refs/pull/418/head (8382633e9753bcc0d7bccf55fe10a1844a3aa93f) (linux-x86_64:(lint-fmt))
Base: ocaml/opam:debian-13-ocaml-4.08@sha256:7cdc2a1943ac1462f548be7816c6d02f14e605659f225027208abe04795ea500
ocamlformat version: version 0.27.0 (from opam)


To reproduce locally:


git clone --recursive "https://github.com/mirage/mirage-skeleton.git" && cd "mirage-skeleton" && git fetch origin "refs/pull/418/head" && git reset --hard 8382633e
cat > Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.08@sha256:7cdc2a1943ac1462f548be7816c6d02f14e605659f225027208abe04795ea500
USER 1000:1000
RUN cd ~/opam-repository && (git cat-file -e 873cb18c37b308713d11ad3894c4bb78d73fb3e7 || git fetch origin master) && git reset -q --hard 873cb18c37b308713d11ad3894c4bb78d73fb3e7 && git log --no-decorate -n1 --oneline && opam update -u
RUN opam depext -i dune
WORKDIR /src
RUN opam depext -i ocamlformat=0.27.0
COPY --chown=1000:1000 . /src/
RUN opam exec -- dune build @fmt --ignore-promoted-rules || (echo "dune build @fmt failed"; exit 2)


END-OF-DOCKERFILE
docker build .
END-REPRO-BLOCK


2026-01-20 15:53.27: Using cache hint "mirage/mirage-skeleton-ocaml/opam:debian-13-ocaml-4.08@sha256:7cdc2a1943ac1462f548be7816c6d02f14e605659f225027208abe04795ea500-debian-13-4.08_opam-2.5-ocamlformat-873cb18c37b308713d11ad3894c4bb78d73fb3e7"
2026-01-20 15:53.27: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.08@sha256:7cdc2a1943ac1462f548be7816c6d02f14e605659f225027208abe04795ea500)
(user (uid 1000) (gid 1000))
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e 873cb18c37b308713d11ad3894c4bb78d73fb3e7 || git fetch origin master) && git reset -q --hard 873cb18c37b308713d11ad3894c4bb78d73fb3e7 && git log --no-decorate -n1 --oneline && opam update -u"))
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam depext -i dune"))
(workdir /src)
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam depext -i ocamlformat=0.27.0"))
(copy (src .) (dst /src/))
(run (shell "opam exec -- dune build @fmt --ignore-promoted-rules || (echo \"dune build @fmt failed\"; exit 2)"))
)


2026-01-20 15:53.27: Waiting for resource in pool OCluster
2026-01-20 15:53.27: Waiting for worker…
2026-01-20 15:53.27: Got resource from pool OCluster
Building on laodoke.caelum.ci.dev
All commits already cached
HEAD is now at 8382633 Pass dhcp to resolver_dns


(from ocaml/opam:debian-13-ocaml-4.08@sha256:7cdc2a1943ac1462f548be7816c6d02f14e605659f225027208abe04795ea500)
2026-01-20 15:53.28 ---> using "4c1f60dc0cc5644c6a4c05cf3315bdbf9cc478b70e443b212a1220385bab8bba" from cache


/: (user (uid 1000) (gid 1000))


/: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e 873cb18c37b308713d11ad3894c4bb78d73fb3e7 || git fetch origin master) && git reset -q --hard 873cb18c37b308713d11ad3894c4bb78d73fb3e7 && git log --no-decorate -n1 --oneline && opam update -u"))
From https://github.com/ocaml/opam-repository
* branch                  master     -> FETCH_HEAD
a6b2f19780..1c997ec9e6  master     -> origin/master
873cb18c37 Merge pull request #29216 from shonfeder/release-dune-3.21.0


<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
default (at git+file:///home/opam/opam-repository):
[INFO] opam 2.1 and 2.2 include many performance and security improvements over 2.0; please consider upgrading (https://opam.ocaml.org/doc/Install.html)


Everything as up-to-date as possible (run with --verbose to show unavailable upgrades).
However, you may "opam upgrade" these packages explicitly, which will ask permission to downgrade or uninstall the conflicting packages.
Nothing to do.
# Run eval $(opam env) to update the current shell environment
2026-01-20 15:53.28 ---> using "72a7cd495abee3d0659c15140c96fff42d035222fc9b794ad453f1a5292cd6f1" from cache


/: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam depext -i dune"))
# Detecting depexts using vars: arch=x86_64, os=linux, os-distribution=debian, os-family=debian
# No extra OS packages requirements found.
# All required OS packages found.
# Now letting opam install the packages
The following actions will be performed:
- install dune 3.21.0


<><> Gathering sources ><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
[dune.3.21.0] found in cache


<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> installed dune.3.21.0
Done.
# Run eval $(opam env) to update the current shell environment
2026-01-20 15:53.28 ---> using "3b5aee51bb4636e6dab95deb6944478b896d0b06f021712424b773f7d70073ac" from cache


/: (workdir /src)


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam depext -i ocamlformat=0.27.0"))
# Detecting depexts using vars: arch=x86_64, os=linux, os-distribution=debian, os-family=debian
# No extra OS packages requirements found.
# All required OS packages found.
# Now letting opam install the packages
The following actions will be performed:
- install sexplib0          v0.14.0  [required by base]
- install ocamlbuild        0.16.1   [required by fpath, astring, uuseg]
- install cmdliner          1.3.0    [required by ocamlformat]
- install either            1.0.0    [required by ocamlformat-lib]
- install menhirLib         20250912 [required by ocamlformat-lib]
- install csexp             1.5.2    [required by ocamlformat]
- install dune-build-info   3.21.0   [required by ocamlformat-lib]
- install camlp-streams     5.0.1    [required by ocamlformat-lib]
- install seq               base     [required by re]
- install menhirSdk         20250912 [required by ocamlformat-lib]
- install fix               20250919 [required by ocamlformat-lib]
- install menhirCST         20250912 [required by menhir]
- install ocamlfind         1.9.8    [required by ocp-indent, astring, fpath, uuseg]
- install ocaml-version     4.0.3    [required by ocamlformat-lib]
- install dune-configurator 3.21.0   [required by base]
- install re                1.11.0   [required by ocamlformat]
- install menhir            20250912 [required by ocamlformat-lib]
- install topkg             1.1.1    [required by fpath, astring, uuseg]
- install ocp-indent        1.9.0    [required by ocamlformat-lib]
- install base              v0.14.3  [required by ocamlformat-lib]
- install uutf              1.0.4    [required by ocamlformat-lib]
- install astring           0.8.5    [required by ocamlformat-lib]
- install stdio             v0.14.0  [required by ocamlformat-lib]
- install uucp              15.0.0   [required by uuseg]
- install fpath             0.7.3    [required by ocamlformat-lib]
- install uuseg             15.0.0   [required by ocamlformat-lib]
- install ocamlformat-lib   0.27.0   [required by ocamlformat]
- install ocamlformat       0.27.0
===== 28 to install =====


<><> Gathering sources ><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
[astring.0.8.5] found in cache
[base.v0.14.3] found in cache
[camlp-streams.5.0.1] found in cache
[cmdliner.1.3.0] found in cache
[csexp.1.5.2] found in cache
[dune-build-info.3.21.0] found in cache
[dune-configurator.3.21.0] found in cache
[either.1.0.0] found in cache
[fix.20250919] found in cache
[fpath.0.7.3] found in cache
[menhir.20250912] found in cache
[menhirCST.20250912] found in cache
[menhirLib.20250912] found in cache
[menhirSdk.20250912] found in cache
[ocaml-version.4.0.3] found in cache
[ocamlbuild.0.16.1] found in cache
[ocamlfind.1.9.8] found in cache
[ocamlformat.0.27.0] found in cache
[ocamlformat-lib.0.27.0] found in cache
[ocp-indent.1.9.0] found in cache
[re.1.11.0] found in cache
[sexplib0.v0.14.0] found in cache
[stdio.v0.14.0] found in cache
[topkg.1.1.1] found in cache
[uucp.15.0.0] found in cache
[uuseg.15.0.0] found in cache
[uutf.1.0.4] found in cache


<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> installed seq.base
-> installed camlp-streams.5.0.1
-> installed csexp.1.5.2
-> installed cmdliner.1.3.0
-> installed either.1.0.0
-> installed fix.20250919
-> installed menhirCST.20250912
-> installed menhirLib.20250912
-> installed menhirSdk.20250912
-> installed ocaml-version.4.0.3
-> installed re.1.11.0
-> installed sexplib0.v0.14.0
-> installed dune-build-info.3.21.0
-> installed dune-configurator.3.21.0
-> installed ocamlfind.1.9.8
-> installed ocp-indent.1.9.0
-> installed ocamlbuild.0.16.1
-> installed base.v0.14.3
-> installed topkg.1.1.1
-> installed stdio.v0.14.0
-> installed uutf.1.0.4
-> installed astring.0.8.5
-> installed fpath.0.7.3
-> installed menhir.20250912
-> installed uucp.15.0.0
-> installed uuseg.15.0.0
-> installed ocamlformat-lib.0.27.0
-> installed ocamlformat.0.27.0
Done.


<><> ocp-indent.1.9.0 installed successfully ><><><><><><><><><><><><><><><><><>
=> This package requires additional configuration for use in editors. Install package 'user-setup', or manually:


* for Emacs, add these lines to ~/.emacs:
(add-to-list 'load-path "/home/opam/.opam/4.08/share/emacs/site-lisp")
(require 'ocp-indent)


* for Vim, add this line to ~/.vimrc:
set rtp^="/home/opam/.opam/4.08/share/ocp-indent/vim"
# Run eval $(opam env) to update the current shell environment
2026-01-20 15:53.28 ---> using "2ae43ae662b95641fa2bf73d980051b9145f20314d85ad107c6a3257b77df4e6" from cache


/src: (copy (src .) (dst /src/))
2026-01-20 15:53.28 ---> saved as "b6ae46db645f677473274d4d2fcf06120a4a33d49a7dc380780269818621c6a4"


/src: (run (shell "opam exec -- dune build @fmt --ignore-promoted-rules || (echo \"dune build @fmt failed\"; exit 2)"))
File "applications/dns/config.ml", line 1, characters 0-0:
diff --git a/_build/default/applications/dns/config.ml b/_build/default/applications/dns/.formatted/config.ml
index 022e0a5..af7a6f0 100644
--- a/_build/default/applications/dns/config.ml
+++ b/_build/default/applications/dns/.formatted/config.ml
@@ -3,8 +3,15 @@ open Mirage


let unikernel = main "Unikernel.Make" (dns_client @-> job)
let dhcp_requests = make_dhcp_requests ()
-let stackv4v6, lease = generic_stackv4v6_with_lease ~dhcp_requests default_network
+
+let stackv4v6, lease =
+  generic_stackv4v6_with_lease ~dhcp_requests default_network
+
let happy_eyeballs = generic_happy_eyeballs stackv4v6


let () =
-  register "resolve" [ unikernel $ generic_dns_client ~dhcp:(dhcp_requests, lease) stackv4v6 happy_eyeballs ]
+  register "resolve"
+    [
+      unikernel
+      $ generic_dns_client ~dhcp:(dhcp_requests, lease) stackv4v6 happy_eyeballs;
+    ]
File "applications/git/config.ml", line 1, characters 0-0:
diff --git a/_build/default/applications/git/config.ml b/_build/default/applications/git/.formatted/config.ml
index f121205..34ac8af 100644
--- a/_build/default/applications/git/config.ml
+++ b/_build/default/applications/git/.formatted/config.ml
@@ -53,9 +53,15 @@ let mimic stackv4v6 happy_eyeballs dns_client =
merge_git_clients mhttp (merge_git_clients mtcp mssh)


let dhcp_requests = make_dhcp_requests ()
-let stackv4v6, lease = generic_stackv4v6_with_lease ~dhcp_requests default_network
+
+let stackv4v6, lease =
+  generic_stackv4v6_with_lease ~dhcp_requests default_network
+
let happy_eyeballs = generic_happy_eyeballs stackv4v6
-let dns_client = generic_dns_client ~dhcp:(dhcp_requests, lease) stackv4v6 happy_eyeballs
+
+let dns_client =
+  generic_dns_client ~dhcp:(dhcp_requests, lease) stackv4v6 happy_eyeballs
+
let git = git_impl None $ sha1
let mimic = mimic stackv4v6 happy_eyeballs dns_client
let () = register "minigit" [ minigit $ git $ mimic ]
File "applications/http/config.ml", line 1, characters 0-0:
diff --git a/_build/default/applications/http/config.ml b/_build/default/applications/http/.formatted/config.ml
index c5ea531..31312b4 100644
--- a/_build/default/applications/http/config.ml
+++ b/_build/default/applications/http/.formatted/config.ml
@@ -27,7 +27,10 @@ let conn =
impl ~connect "Connect.Make" (tcpv4v6 @-> mimic @-> conn)


let dhcp_requests = make_dhcp_requests ()
-let stackv4v6, lease = generic_stackv4v6_with_lease ~dhcp_requests default_network
+
+let stackv4v6, lease =
+  generic_stackv4v6_with_lease ~dhcp_requests default_network
+
let tcpv4v6 = tcpv4v6_of_stackv4v6 stackv4v6
let he = generic_happy_eyeballs stackv4v6
let dns = generic_dns_client ~dhcp:(dhcp_requests, lease) stackv4v6 he
File "device-usage/http-fetch/config.ml", line 1, characters 0-0:
diff --git a/_build/default/device-usage/http-fetch/config.ml b/_build/default/device-usage/http-fetch/.formatted/config.ml
index d19f484..fca05a6 100644
--- a/_build/default/device-usage/http-fetch/config.ml
+++ b/_build/default/device-usage/http-fetch/.formatted/config.ml
@@ -7,7 +7,9 @@ let client =


let () =
let dhcp_requests = make_dhcp_requests () in
-  let stack, lease = generic_stackv4v6_with_lease ~dhcp_requests default_network in
+  let stack, lease =
+    generic_stackv4v6_with_lease ~dhcp_requests default_network
+  in
let res_dns = resolver_dns ~dhcp:(dhcp_requests, lease) stack in
let conduit = conduit_direct ~tls:true stack in
let job = [ client $ cohttp_client res_dns conduit ] in
File "device-usage/littlefs/config.ml", line 1, characters 0-0:
diff --git a/_build/default/device-usage/littlefs/config.ml b/_build/default/device-usage/littlefs/.formatted/config.ml
index 34eb062..dd535ef 100644
--- a/_build/default/device-usage/littlefs/config.ml
+++ b/_build/default/device-usage/littlefs/.formatted/config.ml
@@ -7,7 +7,9 @@ let unikernel =
(kv_rw @-> job)


let block = block_of_file "littlefs"
+
let program_block_size =
Runtime_arg.create ~pos:__POS__ "Unikernel.program_block_size"
+
let fs = chamelon ~program_block_size block
let () = register "elittlefs" [ unikernel $ fs ]
File "applications/dhcp/unikernel.ml", line 1, characters 0-0:
diff --git a/_build/default/applications/dhcp/unikernel.ml b/_build/default/applications/dhcp/.formatted/unikernel.ml
index 04a4f50..97562ce 100644
--- a/_build/default/applications/dhcp/unikernel.ml
+++ b/_build/default/applications/dhcp/.formatted/unikernel.ml
@@ -11,7 +11,7 @@ module Main (N : Mirage_net.S) = struct
let input_dhcp net config leases buf =
match Dhcp_wire.pkt_of_buf buf (Cstruct.length buf) with
| Error `Not_dhcp -> Lwt.return leases
-    | Error `Msg e ->
+    | Error (`Msg e) ->
Logs.err (fun m -> m "Can't parse packet: %s" e);
Lwt.return leases
| Ok pkt -> (
dune build @fmt failed
"/usr/bin/env" "bash" "-c" "opam exec -- dune build @fmt --ignore-promoted-rules || (echo "dune build @fmt failed"; exit 2)" failed with exit status 2
2026-01-20 15:53.29: Job failed: Failed: Build failed