Recently, I started getting warnings on the nixos-rebuild switch:
evaluation warning: fold has been deprecated, use foldr instead evaluation warning: ‘system’ has been renamed to/replaced by ‘stdenv.hostPlatform.system’ evaluation warning: ‘system’ has been renamed to/replaced by ‘stdenv.hostPlatform.system’
Without seeing your config I can’t say exactly but you would need to replace the usage of fold with an equivalent usage of foldr (there’s a usage example here). I don’t know about the system one.
I don’t seem to use it at all in my configuration.
Use the solution I posted above:
NIX_ABORT_ON_WARN=1 nixos-rebuild build --impure --show-trace
Then figure out who wrote that code and complain to them.
EDIT: to be clear don’t use --impure normally, this is just to make sure NIX_ABORT_ON_WARN is passed in.
building the system configuration...
error:
… while evaluating the attribute 'config'
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:361:9:
360| options = checked options;
361| config = checked (removeAttrs config [ "_module" ]);
| ^
362| _module = checked (config._module);
… while calling the 'seq' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:361:18:
360| options = checked options;
361| config = checked (removeAttrs config [ "_module" ]);
| ^
362| _module = checked (config._module);
… while evaluating a branch condition
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:297:9:
296| checkUnmatched =
297| if config._module.check && config._module.freeformType == null && merged.unmatchedDefns != [ ] then
| ^
298| let
… in the left operand of the AND (&&) operator
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:297:72:
296| checkUnmatched =
297| if config._module.check && config._module.freeformType == null && merged.unmatchedDefns != [ ] then
| ^
298| let
… in the left operand of the AND (&&) operator
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:297:33:
296| checkUnmatched =
297| if config._module.check && config._module.freeformType == null && merged.unmatchedDefns != [ ] then
| ^
298| let
… while evaluating a branch condition
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:288:9:
287| in
288| if declaredConfig._module.freeformType == null then
| ^
289| declaredConfig
… from call site
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:275:28:
274| # For definitions that have an associated option
275| declaredConfig = mapAttrsRecursiveCond (v: !isOption v) (_: v: v.value) options;
| ^
276|
… while calling 'mapAttrsRecursiveCond'
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/attrsets.nix:1183:14:
1182| mapAttrsRecursiveCond =
1183| cond: f: set:
| ^
1184| let
… while calling the 'mapAttrs' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/attrsets.nix:1192:5:
1191| in
1192| recurse [ ] set;
| ^
1193|
… while evaluating the attribute 'matchedOptions'
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:891:15:
890| {
891| inherit matchedOptions;
| ^
892|
… while calling the 'mapAttrs' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:881:24:
880|
881| matchedOptions = mapAttrs (n: v: v.matchedOptions) resultsByName;
| ^
882|
… while calling the 'mapAttrs' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:829:23:
828|
829| resultsByName = mapAttrs (
| ^
830| name: decls:
… while calling the 'zipAttrsWith' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:745:21:
744| # an attrset 'name' => list of submodules that declare ‘name’.
745| declsByName = zipAttrsWith (n: v: v) (
| ^
746| map (
… while calling the 'map' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:746:9:
745| declsByName = zipAttrsWith (n: v: v) (
746| map (
| ^
747| module:
… from call site
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:267:37:
266|
267| merged = mergeModules prefix (reverseList (doCollect { }).modules);
| ^
268|
… while calling 'reverseList'
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/lists.nix:1105:5:
1104| reverseList =
1105| xs:
| ^
1106| let
… while calling the 'genList' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/lists.nix:1109:5:
1108| in
1109| genList (n: elemAt xs (l - n - 1)) l;
| ^
1110|
… while evaluating the second argument passed to builtins.genList
… while calling the 'length' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/lists.nix:1107:11:
1106| let
1107| l = length xs;
| ^
1108| in
… while evaluating the attribute 'modules'
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:550:7:
549| modulesPath: initialModules: args: {
550| modules = filterModules modulesPath (collectStructuredModules unknownModule "" initialModules args);
| ^
551| graph = toGraph modulesPath (collectStructuredModules unknownModule "" initialModules args);
… from call site
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:550:17:
549| modulesPath: initialModules: args: {
550| modules = filterModules modulesPath (collectStructuredModules unknownModule "" initialModules args);
| ^
551| graph = toGraph modulesPath (collectStructuredModules unknownModule "" initialModules args);
… while calling 'filterModules'
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:525:9:
524| modulesPath:
525| { disabled, modules }:
| ^
526| let
… while calling the 'map' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:529:9:
528| in
529| map (attrs: attrs.module) (genericClosure {
| ^
530| startSet = keyFilter modules;
… while calling the 'genericClosure' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:529:36:
528| in
529| map (attrs: attrs.module) (genericClosure {
| ^
530| startSet = keyFilter modules;
… while calling the 'filter' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:530:22:
529| map (attrs: attrs.module) (genericClosure {
530| startSet = keyFilter modules;
| ^
531| operator = attrs: keyFilter attrs.modules;
… while calling anonymous lambda
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:527:31:
526| let
527| keyFilter = filter (attrs: !isDisabled modulesPath disabled attrs);
| ^
528| in
… in the argument of the not operator
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:527:39:
526| let
527| keyFilter = filter (attrs: !isDisabled modulesPath disabled attrs);
| ^
528| in
… from call site
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:527:39:
526| let
527| keyFilter = filter (attrs: !isDisabled modulesPath disabled attrs);
| ^
528| in
… while calling anonymous lambda
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:456:9:
455| in
456| structuredModule: elem structuredModule.key disabledKeys;
| ^
457|
… while calling the 'elem' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:456:27:
455| in
456| structuredModule: elem structuredModule.key disabledKeys;
| ^
457|
… while calling the 'concatMap' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:454:26:
453|
454| disabledKeys = concatMap ({ file, disabled }: map (moduleKey file) disabled) disabledList;
| ^
455| in
… while calling the 'concatLists' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:486:24:
485| collectResults = modules: {
486| disabled = concatLists (catAttrs "disabled" modules);
| ^
487| inherit modules;
… while evaluating the attribute 'disabled'
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:486:13:
485| collectResults = modules: {
486| disabled = concatLists (catAttrs "disabled" modules);
| ^
487| inherit modules;
… while calling the 'concatLists' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:486:24:
485| collectResults = modules: {
486| disabled = concatLists (catAttrs "disabled" modules);
| ^
487| inherit modules;
… while evaluating a branch condition
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:504:19:
503| (
504| if module.disabledModules != [ ] then
| ^
505| [
… from call site
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:495:24:
494| let
495| module = checkModule (loadModule args parentFile "${parentKey}:anon-${toString n}" x);
| ^
496| collectedImports = collectStructuredModules module._file module.key module.imports args;
… while calling anonymous lambda
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:414:11:
413| if class != null then
414| m:
| ^
415| if m._class == null || m._class == class then
… while evaluating a branch condition
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:415:11:
414| m:
415| if m._class == null || m._class == class then
| ^
416| m
… in the left operand of the OR (||) operator
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:415:31:
414| m:
415| if m._class == null || m._class == class then
| ^
416| m
… from call site
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:495:37:
494| let
495| module = checkModule (loadModule args parentFile "${parentKey}:anon-${toString n}" x);
| ^
496| collectedImports = collectStructuredModules module._file module.key module.imports args;
… while calling 'loadModule'
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:379:42:
378| loadModule =
379| args: fallbackFile: fallbackKey: m:
| ^
380| if isFunction m then
… while evaluating a branch condition
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:380:9:
379| args: fallbackFile: fallbackKey: m:
380| if isFunction m then
| ^
381| unifyModuleSyntax fallbackFile fallbackKey (applyModuleArgs fallbackKey m args)
… from call site
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:380:12:
379| args: fallbackFile: fallbackKey: m:
380| if isFunction m then
| ^
381| unifyModuleSyntax fallbackFile fallbackKey (applyModuleArgs fallbackKey m args)
… while calling 'isFunction'
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/trivial.nix:1057:16:
1056| */
1057| isFunction = f: builtins.isFunction f || (f ? __functor && isFunction (f.__functor f));
| ^
1058|
… in the left operand of the OR (||) operator
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/trivial.nix:1057:41:
1056| */
1057| isFunction = f: builtins.isFunction f || (f ? __functor && isFunction (f.__functor f));
| ^
1058|
… while calling the 'isFunction' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/trivial.nix:1057:19:
1056| */
1057| isFunction = f: builtins.isFunction f || (f ? __functor && isFunction (f.__functor f));
| ^
1058|
… while calling the 'elemAt' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/lists.nix:347:43:
346| */
347| imap1 = f: list: genList (n: f (n + 1) (elemAt list n)) (length list);
| ^
348|
… from call site
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/nixos/default.nix:2:19:
1| {
2| configuration ? import ./lib/from-env.nix "NIXOS_CONFIG" <nixos-config>,
| ^
3| system ? builtins.currentSystem,
… while calling anonymous lambda
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/nixos/lib/from-env.nix:2:7:
1| # TODO: remove this file. There is lib.maybeEnv now
2| name: default:
| ^
3| let
… while calling the 'findFile' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/nixos/default.nix:2:60:
1| {
2| configuration ? import ./lib/from-env.nix "NIXOS_CONFIG" <nixos-config>,
| ^
3| system ? builtins.currentSystem,
error: file 'nixos-config' was not found in the Nix search path (add it using $NIX_PATH or -I)
Command 'nix-build '<nixpkgs/nixos>' --attr config.system.build.toplevel --show-trace' returned non-zero exit status 1.
Well you should pass in any additional flags that you normally use, like --flake or -I or whatnot.
building the system configuration...
evaluation warning: fold has been deprecated, use foldr instead
error:
… while calling the 'seq' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:361:18:
360| options = checked options;
361| config = checked (removeAttrs config [ "_module" ]);
| ^
362| _module = checked (config._module);
… while evaluating a branch condition
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:297:9:
296| checkUnmatched =
297| if config._module.check && config._module.freeformType == null && merged.unmatchedDefns != [ ] then
| ^
298| let
… in the left operand of the AND (&&) operator
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:297:72:
296| checkUnmatched =
297| if config._module.check && config._module.freeformType == null && merged.unmatchedDefns != [ ] then
| ^
298| let
… in the left operand of the AND (&&) operator
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:297:33:
296| checkUnmatched =
297| if config._module.check && config._module.freeformType == null && merged.unmatchedDefns != [ ] then
| ^
298| let
… while evaluating a branch condition
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:288:9:
287| in
288| if declaredConfig._module.freeformType == null then
| ^
289| declaredConfig
… from call site
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:275:28:
274| # For definitions that have an associated option
275| declaredConfig = mapAttrsRecursiveCond (v: !isOption v) (_: v: v.value) options;
| ^
276|
… while calling 'mapAttrsRecursiveCond'
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/attrsets.nix:1183:14:
1182| mapAttrsRecursiveCond =
1183| cond: f: set:
| ^
1184| let
… while calling the 'mapAttrs' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/attrsets.nix:1192:5:
1191| in
1192| recurse [ ] set;
| ^
1193|
… while evaluating the attribute 'matchedOptions'
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:891:15:
890| {
891| inherit matchedOptions;
| ^
892|
… while calling the 'mapAttrs' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:881:24:
880|
881| matchedOptions = mapAttrs (n: v: v.matchedOptions) resultsByName;
| ^
882|
… while calling the 'mapAttrs' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:829:23:
828|
829| resultsByName = mapAttrs (
| ^
830| name: decls:
… while calling the 'zipAttrsWith' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:745:21:
744| # an attrset 'name' => list of submodules that declare ‘name’.
745| declsByName = zipAttrsWith (n: v: v) (
| ^
746| map (
… while calling the 'map' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:746:9:
745| declsByName = zipAttrsWith (n: v: v) (
746| map (
| ^
747| module:
… from call site
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:267:37:
266|
267| merged = mergeModules prefix (reverseList (doCollect { }).modules);
| ^
268|
… while calling 'reverseList'
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/lists.nix:1105:5:
1104| reverseList =
1105| xs:
| ^
1106| let
… while calling the 'genList' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/lists.nix:1109:5:
1108| in
1109| genList (n: elemAt xs (l - n - 1)) l;
| ^
1110|
… while evaluating the second argument passed to builtins.genList
… while calling the 'length' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/lists.nix:1107:11:
1106| let
1107| l = length xs;
| ^
1108| in
… while evaluating the attribute 'modules'
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:550:7:
549| modulesPath: initialModules: args: {
550| modules = filterModules modulesPath (collectStructuredModules unknownModule "" initialModules args);
| ^
551| graph = toGraph modulesPath (collectStructuredModules unknownModule "" initialModules args);
… from call site
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:550:17:
549| modulesPath: initialModules: args: {
550| modules = filterModules modulesPath (collectStructuredModules unknownModule "" initialModules args);
| ^
551| graph = toGraph modulesPath (collectStructuredModules unknownModule "" initialModules args);
… while calling 'filterModules'
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:525:9:
524| modulesPath:
525| { disabled, modules }:
| ^
526| let
… while calling the 'map' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:529:9:
528| in
529| map (attrs: attrs.module) (genericClosure {
| ^
530| startSet = keyFilter modules;
… while calling the 'genericClosure' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:529:36:
528| in
529| map (attrs: attrs.module) (genericClosure {
| ^
530| startSet = keyFilter modules;
… while calling the 'filter' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:530:22:
529| map (attrs: attrs.module) (genericClosure {
530| startSet = keyFilter modules;
| ^
531| operator = attrs: keyFilter attrs.modules;
… while calling anonymous lambda
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:527:31:
526| let
527| keyFilter = filter (attrs: !isDisabled modulesPath disabled attrs);
| ^
528| in
… in the argument of the not operator
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:527:39:
526| let
527| keyFilter = filter (attrs: !isDisabled modulesPath disabled attrs);
| ^
528| in
… from call site
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:527:39:
526| let
527| keyFilter = filter (attrs: !isDisabled modulesPath disabled attrs);
| ^
528| in
… while calling anonymous lambda
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:456:9:
455| in
456| structuredModule: elem structuredModule.key disabledKeys;
| ^
457|
… while calling the 'elem' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:456:27:
455| in
456| structuredModule: elem structuredModule.key disabledKeys;
| ^
457|
… while calling the 'concatMap' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:454:26:
453|
454| disabledKeys = concatMap ({ file, disabled }: map (moduleKey file) disabled) disabledList;
| ^
455| in
… while calling the 'concatLists' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:486:24:
485| collectResults = modules: {
486| disabled = concatLists (catAttrs "disabled" modules);
| ^
487| inherit modules;
… while evaluating the attribute 'disabled'
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:486:13:
485| collectResults = modules: {
486| disabled = concatLists (catAttrs "disabled" modules);
| ^
487| inherit modules;
… while calling the 'concatLists' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:486:24:
485| collectResults = modules: {
486| disabled = concatLists (catAttrs "disabled" modules);
| ^
487| inherit modules;
… while evaluating a branch condition
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:504:19:
503| (
504| if module.disabledModules != [ ] then
| ^
505| [
… from call site
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:495:24:
494| let
495| module = checkModule (loadModule args parentFile "${parentKey}:anon-${toString n}" x);
| ^
496| collectedImports = collectStructuredModules module._file module.key module.imports args;
… while calling anonymous lambda
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:414:11:
413| if class != null then
414| m:
| ^
415| if m._class == null || m._class == class then
… while evaluating a branch condition
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:415:11:
414| m:
415| if m._class == null || m._class == class then
| ^
416| m
… in the left operand of the OR (||) operator
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:415:31:
414| m:
415| if m._class == null || m._class == class then
| ^
416| m
… from call site
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:495:37:
494| let
495| module = checkModule (loadModule args parentFile "${parentKey}:anon-${toString n}" x);
| ^
496| collectedImports = collectStructuredModules module._file module.key module.imports args;
… while calling 'loadModule'
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:379:42:
378| loadModule =
379| args: fallbackFile: fallbackKey: m:
| ^
380| if isFunction m then
… while evaluating a branch condition
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:380:9:
379| args: fallbackFile: fallbackKey: m:
380| if isFunction m then
| ^
381| unifyModuleSyntax fallbackFile fallbackKey (applyModuleArgs fallbackKey m args)
… from call site
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/modules.nix:380:12:
379| args: fallbackFile: fallbackKey: m:
380| if isFunction m then
| ^
381| unifyModuleSyntax fallbackFile fallbackKey (applyModuleArgs fallbackKey m args)
… while calling 'isFunction'
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/trivial.nix:1057:16:
1056| */
1057| isFunction = f: builtins.isFunction f || (f ? __functor && isFunction (f.__functor f));
| ^
1058|
… in the left operand of the OR (||) operator
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/trivial.nix:1057:41:
1056| */
1057| isFunction = f: builtins.isFunction f || (f ? __functor && isFunction (f.__functor f));
| ^
1058|
… while calling the 'isFunction' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/trivial.nix:1057:19:
1056| */
1057| isFunction = f: builtins.isFunction f || (f ? __functor && isFunction (f.__functor f));
| ^
1058|
… while calling the 'elemAt' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/lists.nix:347:43:
346| */
347| imap1 = f: list: genList (n: f (n + 1) (elemAt list n)) (length list);
| ^
348|
… from call site
at /nix/store/2pkandqdph6ys5yw8i9gx8xbxaklgr3k-source/flake.nix:41:11:
40| catppuccin.nixosModules.catppuccin
41| solaar.nixosModules.default
| ^
42| ];
… while calling anonymous lambda
at «flakes-internal»/call-flake.nix:68:37:
67|
68| inputs = mapAttrs (inputName: inputSpec: allNodes.${resolveInput inputSpec}.result) (
| ^
69| node.inputs or { }
… while evaluating the attribute 'solaar.result'
at «flakes-internal»/call-flake.nix:94:7:
93| {
94| result =
| ^
95| if node.flake or true then
… in the left operand of the update (//) operator
at «flakes-internal»/call-flake.nix:81:9:
80| # This is shadowed in the next //
81| // sourceInfo
| ^
82| // {
… from call site
at «flakes-internal»/call-flake.nix:72:17:
71|
72| outputs = flake.outputs (inputs // { self = result; });
| ^
73|
… while calling 'outputs'
at /nix/store/y0lbisalmbcmmg3ahviciyncxnljvdx5-source/flake.nix:18:13:
17|
18| outputs = inputs:
| ^
19| let
… from call site
at /nix/store/y0lbisalmbcmmg3ahviciyncxnljvdx5-source/flake.nix:20:13:
19| let
20| lib = inputs.snowfall-lib.mkLib {
| ^
21| inherit inputs;
… while calling anonymous lambda
at /nix/store/vxk2rhymymyi6mrnsjgh3zvflvr1cpr5-source/snowfall-lib/default.nix:5:14:
4| # another extended library for its own applications.
5| core-inputs: user-options: let
| ^
6| raw-snowfall-config = user-options.snowfall or {};
… while evaluating the attribute 'fold'
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/default.nix:252:9:
251| foldr
252| fold
| ^
253| foldl
… while evaluating the attribute 'fold'
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/lists.nix:152:3:
151| */
152| fold = warn "fold has been deprecated, use foldr instead" foldr;
| ^
153|
… while calling the 'warn' builtin
at /nix/store/cd6v80pj9h7r2prxx9a71y92zq88p1xx-source/lib/lists.nix:152:10:
151| */
152| fold = warn "fold has been deprecated, use foldr instead" foldr;
| ^
153|
error: aborting to reveal stack trace of warning, as abort-on-warn is set
Command 'nix --extra-experimental-features 'nix-command flakes' build --print-out-paths 'NixOS/#nixosConfigurations."nixos".config.system.build.toplevel' --show-trace --impure' returned non-zero exit status 1.
Looks like the culprit is snowfall-lib.
But honestly you really don’t need to use these extraneous inputs like snowfall, flakes are not really difficult to write.
They aren’t using it; a dependency of theirs is.
Sorry OP, not much you personally can do about this, and Nix’s warnings story isn’t sophisticated enough to keep messages that don’t apply to your code out of your logs.