hydra-eval-jobs returned exit code 1:
warning: ignoring --gc-roots-dir (just supported for compatibility)
still evaluating after 5s… 
info: evaluation failed
warning: ignoring untrusted flake configuration setting 'allow-import-from-derivation'.
Pass '--accept-flake-config' to trust it
warning: ignoring untrusted flake configuration setting 'extra-substituters'.
Pass '--accept-flake-config' to trust it
warning: ignoring untrusted flake configuration setting 'extra-trusted-public-keys'.
Pass '--accept-flake-config' to trust it
trace: WARNING: No sha256 found for source-repository-package https://github.com/input-output-hk/ouroboros-network ref=(unspecified) rev=bece46c328752ec2c75e5739cbfd04d0dc8d863a download may fail in restricted mode (hydra)
error:
       … while calling anonymous lambda

         at «string»:68:1:

           67| };
           68| flake: let
             | ^
           69|   job = let

       … from call site

         at «string»:129:20:

          128|
          129|     jobAttrPaths = lib.collectAttrPaths lib.isDerivation jobAttrs;
             |                    ^
          130|   in

       … while calling 'collectAttrPaths'

         at «string»:20:33:

           19|
           20|   collectAttrPaths = predicate: attrs: let
             |                                 ^
           21|     internal = path: attrs: let

       … from call site

         at «string»:53:5:

           52|   in
           53|     internal [] attrs;
             |     ^
           54|

       … while calling 'internal'

         at «string»:21:22:

           20|   collectAttrPaths = predicate: attrs: let
           21|     internal = path: attrs: let
             |                      ^
           22|       inherit

       … from call site

         at «string»:36:11:

           35|         then
           36|           flattenDepth 1 (
             |           ^
           37|             map

       … while calling 'flattenDepth'

         at «string»:6:25:

            5|
            6|   flattenDepth = depth: x:
             |                         ^
            7|     if builtins.isList x && (depth == null || depth >= 0)

       … while calling 'flattenDepth'

         at «string»:6:25:

            5|
            6|   flattenDepth = depth: x:
             |                         ^
            7|     if builtins.isList x && (depth == null || depth >= 0)

       … while calling anonymous lambda

         at «string»:39:15:

           38|             (
           39|               attrName:
             |               ^
           40|                 internal

       … from call site

         at «string»:40:17:

           39|               attrName:
           40|                 internal
             |                 ^
           41|                 (path ++ [attrName])

       … while calling 'internal'

         at «string»:21:22:

           20|   collectAttrPaths = predicate: attrs: let
           21|     internal = path: attrs: let
             |                      ^
           22|       inherit

       … from call site

         at «string»:36:11:

           35|         then
           36|           flattenDepth 1 (
             |           ^
           37|             map

       … while calling 'flattenDepth'

         at «string»:6:25:

            5|
            6|   flattenDepth = depth: x:
             |                         ^
            7|     if builtins.isList x && (depth == null || depth >= 0)

       … while calling 'flattenDepth'

         at «string»:6:25:

            5|
            6|   flattenDepth = depth: x:
             |                         ^
            7|     if builtins.isList x && (depth == null || depth >= 0)

       … while calling anonymous lambda

         at «string»:39:15:

           38|             (
           39|               attrName:
             |               ^
           40|                 internal

       … from call site

         at «string»:40:17:

           39|               attrName:
           40|                 internal
             |                 ^
           41|                 (path ++ [attrName])

       … while calling 'internal'

         at «string»:21:22:

           20|   collectAttrPaths = predicate: attrs: let
           21|     internal = path: attrs: let
             |                      ^
           22|       inherit

       … while calling anonymous lambda

         at «string»:25:12:

           24|           builtins.partition
           25|           (attrName: predicate attrs.${attrName})
             |            ^
           26|           (builtins.attrNames attrs)

       … from call site

         at «string»:25:22:

           24|           builtins.partition
           25|           (attrName: predicate attrs.${attrName})
             |                      ^
           26|           (builtins.attrNames attrs)

       … while calling 'isDerivation'

         at «string»:4:18:

            3|   # copied from nixpkgs
            4|   isDerivation = value: value.type or null == "derivation";
             |                  ^
            5|

       … from call site

         at /nix/store/kxrbbchxyf7lw39kanmh0h461kabfmr2-source/nix/ci.nix:40:19:

           39|     native = {
           40|       haskell96 = mkHaskellJobsFor pkgs.hsPkgs;
             |                   ^
           41|     } // lib.optionalAttrs (buildSystem == "x86_64-linux") {

       … while calling 'mkHaskellJobsFor'

         at /nix/store/kxrbbchxyf7lw39kanmh0h461kabfmr2-source/nix/ci.nix:8:22:

            7|
            8|   mkHaskellJobsFor = hsPkgs:
             |                      ^
            9|     let

       … from call site

         at /nix/store/kxrbbchxyf7lw39kanmh0h461kabfmr2-source/nix/ci.nix:31:10:

           30|         haskellLib.collectChecks' projectHsPkgs;
           31|     } // lib.optionalAttrs noCross {
             |          ^
           32|       devShell =

       … while calling 'optionalAttrs'

         at /nix/store/g2ysyzdx76m4z7lnmyddcwdz25lx7kn1-source/lib/attrsets.nix:1352:5:

         1351|     cond:
         1352|     as:
             |     ^
         1353|     if cond then as else {};

       … from call site

         at /nix/store/kxrbbchxyf7lw39kanmh0h461kabfmr2-source/nix/haskell.nix:15:12:

           14|   };
           15|   hsPkgs = haskell-nix.cabalProject {
             |            ^
           16|     src = ./..;

       … while calling 'cabalProject'

         at /nix/store/1ab5mjxdr6rj1gj9ix6c7hw3ky4qbn8v-source/overlays/haskell.nix:927:24:

          926|
          927|         cabalProject = args: let p = cabalProject' args;
             |                        ^
          928|             in p.hsPkgs // p;

       … from call site

         at /nix/store/1ab5mjxdr6rj1gj9ix6c7hw3ky4qbn8v-source/overlays/haskell.nix:658:27:

          657|               callProjectResults = callCabalProjectToNix config;
          658|               plan-pkgs = importAndFilterProject {
             |                           ^
          659|                 inherit (callProjectResults) projectNix sourceRepos src;

       … while calling anonymous lambda

         at /nix/store/1ab5mjxdr6rj1gj9ix6c7hw3ky4qbn8v-source/lib/import-and-filter-project.nix:5:1:

            4| { pkgs, haskellLib }:
            5| { projectNix, sourceRepos, src }:
             | ^
            6| let

       … while evaluating derivation 'haskell-project-plan-to-nix-pkgs'
         whose name attribute is located at /nix/store/g2ysyzdx76m4z7lnmyddcwdz25lx7kn1-source/pkgs/stdenv/generic/make-derivation.nix:331:7

       … while evaluating attribute 'buildCommand' of derivation 'haskell-project-plan-to-nix-pkgs'

         at /nix/store/g2ysyzdx76m4z7lnmyddcwdz25lx7kn1-source/pkgs/build-support/trivial-builders/default.nix:68:16:

           67|         enableParallelBuilding = true;
           68|         inherit buildCommand name;
             |                ^
           69|         passAsFile = [ "buildCommand" ]

       … while evaluating derivation 'cabal.project'
         whose name attribute is located at /nix/store/g2ysyzdx76m4z7lnmyddcwdz25lx7kn1-source/pkgs/stdenv/generic/make-derivation.nix:331:7

       … while evaluating attribute 'text' of derivation 'cabal.project'

         at /nix/store/g2ysyzdx76m4z7lnmyddcwdz25lx7kn1-source/pkgs/build-support/trivial-builders/default.nix:103:16:

          102|       ({
          103|         inherit text executable checkPhase allowSubstitutes preferLocalBuild;
             |                ^
          104|         passAsFile = [ "text" ]

       … from call site

         at /nix/store/1ab5mjxdr6rj1gj9ix6c7hw3ky4qbn8v-source/lib/call-cabal-project-to-nix.nix:236:9:

          235|         sourceRepoPackageResult.initialText +
          236|         pkgs.lib.strings.concatMapStrings (block:
             |         ^
          237|             if block ? sourceRepo

       … while calling 'concatMapStrings'

         at /nix/store/g2ysyzdx76m4z7lnmyddcwdz25lx7kn1-source/lib/strings.nix:60:25:

           59|   */
           60|   concatMapStrings = f: list: concatStrings (map f list);
             |                         ^
           61|

       … while calling anonymous lambda

         at /nix/store/1ab5mjxdr6rj1gj9ix6c7hw3ky4qbn8v-source/lib/call-cabal-project-to-nix.nix:236:44:

          235|         sourceRepoPackageResult.initialText +
          236|         pkgs.lib.strings.concatMapStrings (block:
             |                                            ^
          237|             if block ? sourceRepo

       … while evaluating derivation 'source-repository-package'
         whose name attribute is located at /nix/store/g2ysyzdx76m4z7lnmyddcwdz25lx7kn1-source/pkgs/stdenv/generic/make-derivation.nix:331:7

       … while evaluating attribute 'buildCommand' of derivation 'source-repository-package'

         at /nix/store/g2ysyzdx76m4z7lnmyddcwdz25lx7kn1-source/pkgs/build-support/trivial-builders/default.nix:68:16:

           67|         enableParallelBuilding = true;
           68|         inherit buildCommand name;
             |                ^
           69|         passAsFile = [ "buildCommand" ]

       … from call site

         at /nix/store/1ab5mjxdr6rj1gj9ix6c7hw3ky4qbn8v-source/lib/call-cabal-project-to-nix.nix:209:56:

          208|               in __trace "WARNING: No sha256 found for source-repository-package ${repoData.url} ref=${repoData.ref or "(unspecified)"} rev=${repoData.rev or "(unspecified)"} download may fail in restricted mode (hydra)"
          209|                 (__trace "Consider adding `--sha256: ${hashPath drv}` to the ${cabalProjectFileName} file or passing in a sha256map argument"
             |                                                        ^
          210|                  drv);

       … while calling 'hashPath'

         at /nix/store/1ab5mjxdr6rj1gj9ix6c7hw3ky4qbn8v-source/lib/call-cabal-project-to-nix.nix:184:14:

          183|
          184|   hashPath = path:
             |              ^
          185|     builtins.readFile (pkgs.runCommand "hash-path" { preferLocalBuild = true; }

       … while evaluating derivation 'hash-path'
         whose name attribute is located at /nix/store/g2ysyzdx76m4z7lnmyddcwdz25lx7kn1-source/pkgs/stdenv/generic/make-derivation.nix:331:7

       … while evaluating attribute 'buildCommand' of derivation 'hash-path'

         at /nix/store/g2ysyzdx76m4z7lnmyddcwdz25lx7kn1-source/pkgs/build-support/trivial-builders/default.nix:68:16:

           67|         enableParallelBuilding = true;
           68|         inherit buildCommand name;
             |                ^
           69|         passAsFile = [ "buildCommand" ]

       error: fetchTree argument 'ref' is null while a string, Boolean or integer is expected
info: max RSS: 592461824 bytes / 565.02 MiB / 0.55 GiB