these 3 derivations will be built:
  /nix/store/0z4cnxjzm2i3bjvsr4vcinb3cvx4fp3c-treefmt.toml.drv
  /nix/store/zgs0lp7md08ln0caqqhf72b8idjsikz8-treefmt.drv
  /nix/store/mjazhgx08pw5jhznh1pa0n4007mplgci-treefmt-check.drv
these 68 paths will be fetched (584.0 MiB download, 1.9 GiB unpacked):
  /nix/store/lqznqia5gzy9gifarnn2419mhvhv8ni0-alejandra-4.0.0
  /nix/store/21cakhvvk291d2r27aqim6djdw0zlkik-bash-interactive-5.3p15
  /nix/store/5a10b0byalr42xpsyklzmrsfgnknqjw6-cargo-1.97.1
  /nix/store/bz4v0n1cip3m5fzzwanxl463x60drmx1-curl-8.21.0
  /nix/store/mavadygrg9dx0x4b7rhna9njqlyiplga-diffutils-3.12
  /nix/store/2mj9fbglfqvfizz274hrd8bgvlwv1n0y-findutils-4.11.0
  /nix/store/f5mdjn2viwq7adgk29639cvcymxwj8fz-gettext-1.0
  /nix/store/v2iradivx07xjqwk2q71i57pwxw6wh4g-git-2.55.0
  /nix/store/bz8bdi34lg4w10kxs9bm93658ary5rrz-git-2.55.0-doc
  /nix/store/3mwy5ng6i8xryx42kxkvrasvn460ildj-git-lfs-3.7.1
  /nix/store/w01wqhf6cxyp2xk7x9m2hzza2z6kzcsh-gmp-with-cxx-6.3.0
  /nix/store/bknwi0mk48rvgfzggxl795lmspmmcz46-iana-etc-20251215
  /nix/store/2c9rl9zk71fw08h75d2y0sb4nxhhd3p2-json2x-0.1.0
  /nix/store/4vp0mdy69arh6gh8p6y7biny9lc7vgn9-llvm-21.1.8-lib
  /nix/store/91xg9hz3w4byd54hdpr932r1j0cipc9m-mpdecimal-4.0.1
  /nix/store/bl8pv3p4f56fmgg36j4knfazd5npf35n-ncurses-6.6
  /nix/store/1p6qsp10wiags1gxlllra0q27yhv8s77-nixfmt-1.4.0
  /nix/store/f2mzycan1yhdv3jmyvs13k2pjp90c94l-numactl-2.0.18
  /nix/store/vv7l977f19rk0nvirkgbpjry6965cggc-perl-5.42.0
  /nix/store/kl9bk0n0p4c0b0p4w9clzyskfnhdi13z-perl5.42.0-Authen-SASL-2.1900
  /nix/store/k5fqqxvdz4j53fh3a8n3nb1pg5a9l1zn-perl5.42.0-CGI-4.59
  /nix/store/slsgsi2cbi40fs8lqwscx0h1clc3isn0-perl5.42.0-CGI-Fast-2.16
  /nix/store/s3hhlq3mc9bc6ync5993qnwbfp252xqj-perl5.42.0-Clone-0.46
  /nix/store/5572v70pj6ya25w83znzmppp4a8dw6gw-perl5.42.0-Compress-Raw-Bzip2-2.218
  /nix/store/zyq0m1b1dwh389bn972mjy9g81wh25zr-perl5.42.0-Compress-Raw-Zlib-2.222
  /nix/store/ww9i1vjka5381p89vlb3xvz5rk1jfsfp-perl5.42.0-Crypt-URandom-0.55
  /nix/store/9n1103cy5jak75lspg36pahhz717z37v-perl5.42.0-Digest-HMAC-1.05
  /nix/store/1kn6nxzfchyalir6775j5xx44z3r1nqq-perl5.42.0-Encode-Locale-1.05
  /nix/store/hrm5z68mk1ymis6kf4j21m27bc6md2am-perl5.42.0-FCGI-0.82
  /nix/store/mpyp5v8vwzcs3wp5hzajbgpjwmwwb0r8-perl5.42.0-FCGI-ProcManager-0.28
  /nix/store/vcf2y1fd645s58sj4mpzqjzxavgkg94a-perl5.42.0-File-Listing-6.16
  /nix/store/a47m3z8h69v84zhlxw43581ps4q1ck9m-perl5.42.0-HTML-Parser-3.85
  /nix/store/fi5vp8rlc6k5f8wlspfzvzgxz5faqsy8-perl5.42.0-HTML-TagCloud-0.38
  /nix/store/pha33xrjgf87rsij06690k8ddgqxr5sm-perl5.42.0-HTML-Tagset-3.20
  /nix/store/0arhgx54x4znicwc286w2h9jwafg85bz-perl5.42.0-HTTP-CookieJar-0.014
  /nix/store/izm90z1yymi196x1fr3pjcy8il2zv48g-perl5.42.0-HTTP-Cookies-6.10
  /nix/store/cry3510a1xnwcrs5392bjgrg8nfrkq23-perl5.42.0-HTTP-Daemon-6.17
  /nix/store/rvv4rf8k4k57b33xx6skgdr8cb2kw2qg-perl5.42.0-HTTP-Date-6.06
  /nix/store/dsb3diips8gfgqh2sh17zs0h91ssl0bl-perl5.42.0-HTTP-Message-7.02
  /nix/store/y2wp4la1aipxgmy2g4p201ay7042xwp1-perl5.42.0-HTTP-Negotiate-6.01
  /nix/store/3738sdyxlww5v9glcqwg9d56cs5pxy7v-perl5.42.0-IO-Compress-2.221
  /nix/store/gs9165aiiha5nk7b0dmspwm4zbh08d7k-perl5.42.0-IO-HTML-1.004
  /nix/store/w972r3fny5y8hb2n0a1rhyzc4cy19ap0-perl5.42.0-IO-Socket-SSL-2.083
  /nix/store/aivkfsvgbhp3hknqvl7vqh9fd1g133qh-perl5.42.0-LWP-MediaTypes-6.04
  /nix/store/xy6dnwfppx9ai7k3plyynw8f2hxpf2xw-perl5.42.0-Mozilla-CA-20230821
  /nix/store/bfr4dnpcd6xavhpyzhli1rina66255xy-perl5.42.0-Net-HTTP-6.23
  /nix/store/3smv5grhj0vhcm3jlbcs8hhnbh5ak7mx-perl5.42.0-Net-SMTP-SSL-1.04
  /nix/store/7k9v1g5y4i2mizkv4ibgas0jclrkknqs-perl5.42.0-Net-SSLeay-1.92
  /nix/store/jcs6r1h3yr8i3yg1xbkklkg4nwkqrm7h-perl5.42.0-TermReadKey-2.38
  /nix/store/pp24icxp65iy1ad357g8il2030z97bw8-perl5.42.0-Test-Fatal-0.017
  /nix/store/9hwpzd0j1bydb8bj9i7k9pif7bq9iifi-perl5.42.0-Test-Needs-0.002010
  /nix/store/lnsz3v78sg2vfbwaszcmqc9rrs8hbl9d-perl5.42.0-Test-RequiresInternet-0.05
  /nix/store/l4pdsns64w3pb8pc39d5yp0gwfckn9ny-perl5.42.0-TimeDate-2.33
  /nix/store/8bi95q7233la466ffydvx3sjmqgmghin-perl5.42.0-Try-Tiny-0.31
  /nix/store/icpq45rzivcch92h1ifigg1b6kykwfjq-perl5.42.0-URI-5.21
  /nix/store/vqhzahh46ksj2apidcp37pxngs95xmdp-perl5.42.0-WWW-RobotRules-6.02
  /nix/store/9rfh72vqs11bcmpyagls3mdfbh19r9sx-perl5.42.0-libnet-3.15
  /nix/store/i4myhiyqb42rh89kykgv49wrsm8hw8pl-perl5.42.0-libwww-perl-6.83
  /nix/store/41m77i1296n33p6liin8ynr6wh3h6b7m-python3-3.14.6
  /nix/store/79q59ayanpz18iiiggbmglarf00x6mwr-readline-8.3p3
  /nix/store/mhnr24iz2z0v0b3lpqpfi2a5jp9dqcln-rustc-1.97.1
  /nix/store/bda3jw7479qjdsbfzawki0742yrlj0nj-rustc-wrapper-1.97.1
  /nix/store/6xqc9q52b8ynry520950b2kbqwh84svj-rustfmt-1.97.1
  /nix/store/qs0mnknmbqdg5a5pbqck61j2zrapdav8-sqlite-3.53.3
  /nix/store/93xrmgam03maidac0dhgvp9541rs8qfs-stdenv-linux-no-cc
  /nix/store/a28wdsz1r8l82bk9v61lscs565j2xr4w-treefmt-2.5.0
  /nix/store/946glzx3yf8a8chnpyabsziysb8bij9f-util-linux-minimal-2.42.2-lib
  /nix/store/7k242y7plbz0dx1bpykxqhzl6mydllmc-zlib-ng-2.3.3
building '/nix/store/0z4cnxjzm2i3bjvsr4vcinb3cvx4fp3c-treefmt.toml.drv'
treefmt.toml> tribuchet: building on eliza
treefmt.toml> structuredAttrs is enabled
building '/nix/store/zgs0lp7md08ln0caqqhf72b8idjsikz8-treefmt.drv'
treefmt> tribuchet: building on eliza
building '/nix/store/mjazhgx08pw5jhznh1pa0n4007mplgci-treefmt-check.drv'
treefmt-check> tribuchet: building on eliza
treefmt-check> treefmt v2.5.0traversed 28 files
treefmt-check> emitted 17 files for processing
treefmt-check> formatted 17 files (2 changed) in 124ms
treefmt-check>  M tests/hello-flake-v1/flake.nix
treefmt-check>  M tests/hello-flake-v2/flake.nix
treefmt-check> diff --git a/tests/hello-flake-v1/flake.nix b/tests/hello-flake-v1/flake.nix
treefmt-check> index d58aa8a..f3d5f28 100644
treefmt-check> --- a/tests/hello-flake-v1/flake.nix
treefmt-check> +++ b/tests/hello-flake-v1/flake.nix
treefmt-check> @@ -1,12 +1,10 @@
treefmt-check>  {
treefmt-check>    description = "Hello flake v1";
treefmt-check>  
treefmt-check> -  outputs =
treefmt-check> -    { self }:
treefmt-check> -    {
treefmt-check> -      packages.x86_64-linux.default = import ./default.nix;
treefmt-check> -      packages.aarch64-linux.default = import ./default.nix;
treefmt-check> -      packages.x86_64-darwin.default = import ./default.nix;
treefmt-check> -      packages.aarch64-darwin.default = import ./default.nix;
treefmt-check> -    };
treefmt-check> +  outputs = { self }: {
treefmt-check> +    packages.x86_64-linux.default = import ./default.nix;
treefmt-check> +    packages.aarch64-linux.default = import ./default.nix;
treefmt-check> +    packages.x86_64-darwin.default = import ./default.nix;
treefmt-check> +    packages.aarch64-darwin.default = import ./default.nix;
treefmt-check> +  };
treefmt-check>  }
treefmt-check> diff --git a/tests/hello-flake-v2/flake.nix b/tests/hello-flake-v2/flake.nix
treefmt-check> index 8b5f577..b4181ee 100644
treefmt-check> --- a/tests/hello-flake-v2/flake.nix
treefmt-check> +++ b/tests/hello-flake-v2/flake.nix
treefmt-check> @@ -1,12 +1,10 @@
treefmt-check>  {
treefmt-check>    description = "Hello flake v2";
treefmt-check>  
treefmt-check> -  outputs =
treefmt-check> -    { self }:
treefmt-check> -    {
treefmt-check> -      packages.x86_64-linux.default = import ./default.nix;
treefmt-check> -      packages.aarch64-linux.default = import ./default.nix;
treefmt-check> -      packages.x86_64-darwin.default = import ./default.nix;
treefmt-check> -      packages.aarch64-darwin.default = import ./default.nix;
treefmt-check> -    };
treefmt-check> +  outputs = { self }: {
treefmt-check> +    packages.x86_64-linux.default = import ./default.nix;
treefmt-check> +    packages.aarch64-linux.default = import ./default.nix;
treefmt-check> +    packages.x86_64-darwin.default = import ./default.nix;
treefmt-check> +    packages.aarch64-darwin.default = import ./default.nix;
treefmt-check> +  };
treefmt-check>  }
error: Cannot build '/nix/store/mjazhgx08pw5jhznh1pa0n4007mplgci-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/ak6dhwd2cfvdc105lm2jn7rajph7l0zw-treefmt-check
       Last 25 log lines:
       > +  };
       >  }
       > diff --git a/tests/hello-flake-v2/flake.nix b/tests/hello-flake-v2/flake.nix
       > index 8b5f577..b4181ee 100644
       > --- a/tests/hello-flake-v2/flake.nix
       > +++ b/tests/hello-flake-v2/flake.nix
       > @@ -1,12 +1,10 @@
       >  {
       >    description = "Hello flake v2";
       >
       > -  outputs =
       > -    { self }:
       > -    {
       > -      packages.x86_64-linux.default = import ./default.nix;
       > -      packages.aarch64-linux.default = import ./default.nix;
       > -      packages.x86_64-darwin.default = import ./default.nix;
       > -      packages.aarch64-darwin.default = import ./default.nix;
       > -    };
       > +  outputs = { self }: {
       > +    packages.x86_64-linux.default = import ./default.nix;
       > +    packages.aarch64-linux.default = import ./default.nix;
       > +    packages.x86_64-darwin.default = import ./default.nix;
       > +    packages.aarch64-darwin.default = import ./default.nix;
       > +  };
       >  }
       For full logs, run:
         nix log /nix/store/mjazhgx08pw5jhznh1pa0n4007mplgci-treefmt-check.drv