these 3 derivations will be built:
  /nix/store/bmjsd4fagvgb80hq37m755rxl87giwfp-treefmt.toml.drv
  /nix/store/0kcvqhdhy5911ff9a230a6syrm22x5z3-treefmt.drv
  /nix/store/5mv0d4v1bsfymv6bswzwpg3pjbcinzj1-treefmt-check.drv
these 30 paths will be fetched (61.5 MiB download, 283.0 MiB unpacked):
  /nix/store/h37pnm2mbfh65xzp7mq0z44k637ki28s-deadnix-1.3.1
  /nix/store/3nnl0pk5ivlspxn99x5qv1l7c1vxadmk-deno-2.6.3
  /nix/store/1z3jjazgw53y69kxj04miwf82h1wv8lv-git-lfs-3.7.1
  /nix/store/705yfhg8y8i5g2i8jhhc6rzdds30lvvb-iana-etc-20250505
  /nix/store/ybvv9myfmqf7bz61q0nq2v90dbdv4gvz-jemalloc-5.3.0-unstable-2025-09-12
  /nix/store/wxyx2v0n3161fp99fbwvfwn5as0ar9a4-libyaml-0.2.5
  /nix/store/gwm41cy59il5wjgh4j5gsrj9adqifv7f-nixfmt-1.1.0
  /nix/store/fbxnidqki2cijirlniqgixgpw3h6afj7-python3.13-cbor2-5.7.0
  /nix/store/rxyx17csy61xm0szadzpc72dqyz75wv4-python3.13-colorama-0.4.6
  /nix/store/n8z306dd44n84ix7pha4rfaq41iwilbd-python3.13-flit-core-3.12.0
  /nix/store/bb99h8yfy61hp4n3avws45hbxwv1g9lc-python3.13-markdown-it-py-3.0.0
  /nix/store/1kx2c61ij4fdqnlvbhbrhka6n2j5dbbh-python3.13-mdurl-0.1.2
  /nix/store/bsjacn6m6dxccj27h8sxh9p3ndb46kv8-python3.13-mypy-1.17.1
  /nix/store/hw81g149mh2vdm61r6nmv2qby4yffma5-python3.13-mypy-extensions-1.1.0
  /nix/store/p3acp9fb10q1xqa3c5bfx3cv7z0w4dyv-python3.13-pathspec-0.12.1
  /nix/store/4n3jfyvqqywsl82lxlrhfcykw27l6pk8-python3.13-python-dateutil-2.9.0.post0
  /nix/store/3w2lv1984r5a5pjaaj9l0gaidw2nf9jr-python3.13-pyyaml-6.0.3
  /nix/store/jz31a4qkgk2dwz18nvk2a3gzxscqjahs-python3.13-remarshal-1.2.0
  /nix/store/d10qs0iqln7sm80h9vr22r6dxw0v9g1v-python3.13-rich-14.1.0
  /nix/store/3x7gm8h4lamh4l2f8dss3fyqg7cgww8v-python3.13-rich-argparse-1.7.1
  /nix/store/wrd3vlxip99a1rikj6smic9vbjvyxmrf-python3.13-ruamel-base-1.0.0
  /nix/store/3kmq9mqwijjs4cjv6333dapyjl7bh37l-python3.13-ruamel-yaml-0.18.14
  /nix/store/h8im55r4b0j6ba8g5fks5y2hybnl81yi-python3.13-ruamel-yaml-clib-0.2.12
  /nix/store/2k8n0yb1mhrdwd4n261prii69xxrc3pb-python3.13-six-1.17.0
  /nix/store/fg1ial44vld1v0w0vavfqdpb1zcvv83d-python3.13-tomlkit-0.13.3
  /nix/store/r8dy1ljk5a0wyn3fn9j1qz0imfn7p885-python3.13-typing-extensions-4.15.0
  /nix/store/fxhlgjnna0dsl89l8v4f4lgmbbcb1p13-python3.13-u-msgpack-python-2.8.0
  /nix/store/p1j6zkzdmdlj901zhwfw3kflxwxm67db-ruff-0.14.9
  /nix/store/vhskdy1wvimyv3brfr9ksmx3ay0i426c-treefmt-2.4.0
  /nix/store/369zxblq3vpn798mp3vv9w3pdda8bp72-yamlfmt-0.20.0
building '/nix/store/bmjsd4fagvgb80hq37m755rxl87giwfp-treefmt.toml.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/bmjsd4fagvgb80hq37m755rxl87giwfp-treefmt.toml.drv'
treefmt.toml> 
building '/nix/store/0kcvqhdhy5911ff9a230a6syrm22x5z3-treefmt.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/0kcvqhdhy5911ff9a230a6syrm22x5z3-treefmt.drv'
building '/nix/store/5mv0d4v1bsfymv6bswzwpg3pjbcinzj1-treefmt-check.drv' on 'ssh-ng://customer@mac02'
building '/nix/store/5mv0d4v1bsfymv6bswzwpg3pjbcinzj1-treefmt-check.drv'
treefmt-check> treefmt v2.4.0traversed 51 files
treefmt-check> emitted 42 files for processing
treefmt-check> formatted 42 files (1 changed) in 2.739s
treefmt-check>  M src/nix-eval-jobs.cc
treefmt-check> diff --git a/src/nix-eval-jobs.cc b/src/nix-eval-jobs.cc
treefmt-check> index c4c9081..7b2be0f 100644
treefmt-check> --- a/src/nix-eval-jobs.cc
treefmt-check> +++ b/src/nix-eval-jobs.cc
treefmt-check> @@ -37,8 +37,8 @@
treefmt-check>  #include <nix/util/users.hh>
treefmt-check>  #include <nix/util/util.hh>
treefmt-check>  #ifdef __linux__
treefmt-check> -#  include <sched.h>
treefmt-check> -#  include <nix/util/linux-namespaces.hh>
treefmt-check> +#include <sched.h>
treefmt-check> +#include <nix/util/linux-namespaces.hh>
treefmt-check>  #endif
treefmt-check>  #include <sys/signal.h>
treefmt-check>  #include <variant>
treefmt-check> @@ -539,8 +539,9 @@ auto main(int argc, char **argv) -> int {
treefmt-check>                  if (unshare(CLONE_NEWNS) == -1) {
treefmt-check>                      throw nix::SysError("setting up a private mount namespace");
treefmt-check>                  }
treefmt-check> -            } catch (nix::Error & e) {
treefmt-check> -                nix::warn("failed to set up a private mount namespace: %s", e.msg());
treefmt-check> +            } catch (nix::Error &e) {
treefmt-check> +                nix::warn("failed to set up a private mount namespace: %s",
treefmt-check> +                          e.msg());
treefmt-check>              }
treefmt-check>          }
treefmt-check>  #endif
error: build of '/nix/store/5mv0d4v1bsfymv6bswzwpg3pjbcinzj1-treefmt-check.drv' on 'ssh-ng://customer@mac02' failed: Cannot build '/nix/store/5mv0d4v1bsfymv6bswzwpg3pjbcinzj1-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/ybvg0jh7h21dd8yf7jdzkfib44q64i72-treefmt-check
       Last 25 log lines:
       > --- a/src/nix-eval-jobs.cc
       > +++ b/src/nix-eval-jobs.cc
       > @@ -37,8 +37,8 @@
       >  #include <nix/util/users.hh>
       >  #include <nix/util/util.hh>
       >  #ifdef __linux__
       > -#  include <sched.h>
       > -#  include <nix/util/linux-namespaces.hh>
       > +#include <sched.h>
       > +#include <nix/util/linux-namespaces.hh>
       >  #endif
       >  #include <sys/signal.h>
       >  #include <variant>
       > @@ -539,8 +539,9 @@ auto main(int argc, char **argv) -> int {
       >                  if (unshare(CLONE_NEWNS) == -1) {
       >                      throw nix::SysError("setting up a private mount namespace");
       >                  }
       > -            } catch (nix::Error & e) {
       > -                nix::warn("failed to set up a private mount namespace: %s", e.msg());
       > +            } catch (nix::Error &e) {
       > +                nix::warn("failed to set up a private mount namespace: %s",
       > +                          e.msg());
       >              }
       >          }
       >  #endif
       For full logs, run:
         nix log /nix/store/5mv0d4v1bsfymv6bswzwpg3pjbcinzj1-treefmt-check.drv
error: Cannot build '/nix/store/5mv0d4v1bsfymv6bswzwpg3pjbcinzj1-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/ybvg0jh7h21dd8yf7jdzkfib44q64i72-treefmt-check