don't know how to build these paths:
  /nix/store/4nb4z2d6qp87m07q8dzsv5b7dp0z682l-iets-fmt-0.2.0.drv
warning: ignoring the client-specified setting 'store', because it is a restricted setting and you are not a trusted user
building '/nix/store/4nb4z2d6qp87m07q8dzsv5b7dp0z682l-iets-fmt-0.2.0.drv' on farm.numtide.com:50051
iets-fmt-0.2.0> bld1: building 4nb4z2d6qp87m07q8dzsv5b7dp0z682l-iets-fmt-0.2.0.drv
iets-fmt-0.2.0> cargoVendorDir not set, will not automatically configure vendored sources
iets-fmt-0.2.0> cargoArtifacts not set, will not reuse any cargo artifacts
iets-fmt-0.2.0> Running phase: unpackPhase
iets-fmt-0.2.0> unpacking source archive /nix/store/b8g5x6in896lgl1w14c3iy7rigcmksh1-source
iets-fmt-0.2.0> source root is source
iets-fmt-0.2.0> Running phase: patchPhase
iets-fmt-0.2.0> Executing configureCargoCommonVars
iets-fmt-0.2.0> Running phase: updateAutotoolsGnuConfigScriptsPhase
iets-fmt-0.2.0> Running phase: configurePhase
iets-fmt-0.2.0> default configurePhase, nothing to do
iets-fmt-0.2.0> Running phase: buildPhase
iets-fmt-0.2.0> +++ command cargo --version
iets-fmt-0.2.0> cargo 1.99.0 (5f94df478 2026-08-27)
iets-fmt-0.2.0> +++ command cargo fmt -- --check
iets-fmt-0.2.0> Diff in /build/source/src/remote/grpc/backend.rs:223:
iets-fmt-0.2.0>      let mut ask: HashMap<&'a StorePath, BTreeSet<String>> = HashMap::new();
iets-fmt-0.2.0>      let mut stack: Vec<&'a StorePath> = Vec::new();
iets-fmt-0.2.0>      let grow = |ask: &mut HashMap<&'a StorePath, BTreeSet<String>>,
iets-fmt-0.2.0> -                    stack: &mut Vec<&'a StorePath>,
iets-fmt-0.2.0> -                    p: &'a StorePath,
iets-fmt-0.2.0> -                    names: &BTreeSet<String>| {
iets-fmt-0.2.0> +                stack: &mut Vec<&'a StorePath>,
iets-fmt-0.2.0> +                p: &'a StorePath,
iets-fmt-0.2.0> +                names: &BTreeSet<String>| {
iets-fmt-0.2.0>          let entry = ask.entry(p).or_default();
iets-fmt-0.2.0>          let before = entry.len();
iets-fmt-0.2.0>          entry.extend(names.iter().cloned());
iets-fmt-0.2.0> Diff in /build/source/src/remote/grpc/backend.rs:302:
iets-fmt-0.2.0>          // The static path of every needed output, or an error when a needed
iets-fmt-0.2.0>          // output has none. Outputs nobody needs never error here.
iets-fmt-0.2.0>          let mut paths: Vec<StorePath> = Vec::new();
iets-fmt-0.2.0> -        let mut resolve = |names: &BTreeSet<String>, drv: &Derivation, p: &StorePath| -> Result<()> {
iets-fmt-0.2.0> -            for name in names {
iets-fmt-0.2.0> -                let out = drv
iets-fmt-0.2.0> -                    .outputs
iets-fmt-0.2.0> -                    .get(name)
iets-fmt-0.2.0> -                    .and_then(|o| o.path(&drv.name, name).ok())
iets-fmt-0.2.0> -                    .flatten();
iets-fmt-0.2.0> -                let Some(out) = out else {
iets-fmt-0.2.0> -                    return Err(Error::Plan(format!(
iets-fmt-0.2.0> -                        "'{p}': output '{name}' has no statically known path; the build \
iets-fmt-0.2.0> +        let mut resolve =
iets-fmt-0.2.0> +            |names: &BTreeSet<String>, drv: &Derivation, p: &StorePath| -> Result<()> {
iets-fmt-0.2.0> +                for name in names {
iets-fmt-0.2.0> +                    let out = drv
iets-fmt-0.2.0> +                        .outputs
iets-fmt-0.2.0> +                        .get(name)
iets-fmt-0.2.0> +                        .and_then(|o| o.path(&drv.name, name).ok())
iets-fmt-0.2.0> +                        .flatten();
iets-fmt-0.2.0> +                    let Some(out) = out else {
iets-fmt-0.2.0> +                        return Err(Error::Plan(format!(
iets-fmt-0.2.0> +                            "'{p}': output '{name}' has no statically known path; the build \
iets-fmt-0.2.0>                           farm needs statically known input and output paths"
iets-fmt-0.2.0> -                    )));
iets-fmt-0.2.0> -                };
iets-fmt-0.2.0> -                if asked.insert(out.clone()) {
iets-fmt-0.2.0> -                    paths.push(out);
iets-fmt-0.2.0> +                        )));
iets-fmt-0.2.0> +                    };
iets-fmt-0.2.0> +                    if asked.insert(out.clone()) {
iets-fmt-0.2.0> +                        paths.push(out);
iets-fmt-0.2.0> +                    }
iets-fmt-0.2.0>                  }
iets-fmt-0.2.0> -            }
iets-fmt-0.2.0> -            Ok(())
iets-fmt-0.2.0> -        };
iets-fmt-0.2.0> +                Ok(())
iets-fmt-0.2.0> +            };
iets-fmt-0.2.0>          for (p, names) in &needs {
iets-fmt-0.2.0>              resolve(names, &drvs[*p], p)?;
iets-fmt-0.2.0>          }
iets-fmt-0.2.0> Diff in /build/source/src/remote/grpc/backend.rs:342:
iets-fmt-0.2.0>              }
iets-fmt-0.2.0>          }
iets-fmt-0.2.0>          if !paths.is_empty() {
iets-fmt-0.2.0> -            let names: Vec<String> =
iets-fmt-0.2.0> -                paths.iter().map(|p| p.base_name().to_string()).collect();
iets-fmt-0.2.0> +            let names: Vec<String> = paths.iter().map(|p| p.base_name().to_string()).collect();
iets-fmt-0.2.0>              valid.extend(query(&names)?);
iets-fmt-0.2.0>          }
iets-fmt-0.2.0>          let mut missing: HashSet<&'a StorePath> = HashSet::new();
iets-fmt-0.2.0> Diff in /build/source/src/remote/grpc/backend.rs:350:
iets-fmt-0.2.0>          for p in needs.keys() {
iets-fmt-0.2.0>              let drv = &drvs[*p];
iets-fmt-0.2.0>              let held = needs[*p].iter().all(|name| {
iets-fmt-0.2.0> -                drv.outputs.get(name).and_then(|o| o.path(&drv.name, name).ok()).flatten().is_some_and(
iets-fmt-0.2.0> -                    |out| valid.contains(out.base_name()),
iets-fmt-0.2.0> -                )
iets-fmt-0.2.0> +                drv.outputs
iets-fmt-0.2.0> +                    .get(name)
iets-fmt-0.2.0> +                    .and_then(|o| o.path(&drv.name, name).ok())
iets-fmt-0.2.0> +                    .flatten()
iets-fmt-0.2.0> +                    .is_some_and(|out| valid.contains(out.base_name()))
iets-fmt-0.2.0>              });
iets-fmt-0.2.0>              if !held {
iets-fmt-0.2.0>                  missing.insert(*p);
iets-fmt-0.2.0> Diff in /build/source/src/remote/grpc/backend.rs:632:
iets-fmt-0.2.0>          assert_eq!(needs, vec!["a", "b", "c", "d", "root"]);
iets-fmt-0.2.0>          assert_eq!(
iets-fmt-0.2.0>              calls,
iets-fmt-0.2.0> -            vec![vec!["root-out"], vec!["a-out"], vec!["b-out", "c-out", "d-out"]]
iets-fmt-0.2.0> +            vec![
iets-fmt-0.2.0> +                vec!["root-out"],
iets-fmt-0.2.0> +                vec!["a-out"],
iets-fmt-0.2.0> +                vec!["b-out", "c-out", "d-out"]
iets-fmt-0.2.0> +            ]
iets-fmt-0.2.0>          );
iets-fmt-0.2.0>      }
iets-fmt-0.2.0>  
iets-fmt-0.2.0> Diff in /build/source/src/remote/grpc/backend.rs:642:
iets-fmt-0.2.0>          assert_eq!(needs, vec!["a", "b", "root"]);
iets-fmt-0.2.0>          assert_eq!(
iets-fmt-0.2.0>              calls,
iets-fmt-0.2.0> -            vec![vec!["root-out"], vec!["a-out"], vec!["b-out", "c-out", "d-out"]]
iets-fmt-0.2.0> +            vec![
iets-fmt-0.2.0> +                vec!["root-out"],
iets-fmt-0.2.0> +                vec!["a-out"],
iets-fmt-0.2.0> +                vec!["b-out", "c-out", "d-out"]
iets-fmt-0.2.0> +            ]
iets-fmt-0.2.0>          );
iets-fmt-0.2.0>      }
iets-fmt-0.2.0>  
iets-fmt-0.2.0> Diff in /build/source/src/remote/grpc/backend.rs:651:
iets-fmt-0.2.0>      /// Needs travel down through missing derivations only.
iets-fmt-0.2.0>      fn held_mid() -> BTreeMap<StorePath, Derivation> {
iets-fmt-0.2.0>          let mut drvs = BTreeMap::new();
iets-fmt-0.2.0> -        let out =
iets-fmt-0.2.0> -            |n: &str, p: &str| (n.to_string(), DerivationOutput::InputAddressed(sp(p)));
iets-fmt-0.2.0> +        let out = |n: &str, p: &str| (n.to_string(), DerivationOutput::InputAddressed(sp(p)));
iets-fmt-0.2.0>          let dep = Derivation {
iets-fmt-0.2.0>              name: "dep".into(),
iets-fmt-0.2.0>              outputs: [out("out", "dep-out"), out("dev", "dep-dev")].into(),
iets-fmt-0.2.0> Diff in /build/source/src/remote/grpc/backend.rs:698:
iets-fmt-0.2.0>      /// in what only `dev` needs.
iets-fmt-0.2.0>      fn two_outputs(used: &[&str]) -> BTreeMap<StorePath, Derivation> {
iets-fmt-0.2.0>          let mut drvs = BTreeMap::new();
iets-fmt-0.2.0> -        let out =
iets-fmt-0.2.0> -            |n: &str| (n.to_string(), DerivationOutput::InputAddressed(sp(&format!("dep-{n}"))));
iets-fmt-0.2.0> +        let out = |n: &str| {
iets-fmt-0.2.0> +            (
iets-fmt-0.2.0> +                n.to_string(),
iets-fmt-0.2.0> +                DerivationOutput::InputAddressed(sp(&format!("dep-{n}"))),
iets-fmt-0.2.0> +            )
iets-fmt-0.2.0> +        };
iets-fmt-0.2.0>          let dep = Derivation {
iets-fmt-0.2.0>              name: "dep".into(),
iets-fmt-0.2.0>              outputs: [out("out"), out("dev")].into(),
iets-fmt-0.2.0> Diff in /build/source/src/remote/grpc/backend.rs:707:
iets-fmt-0.2.0>          };
iets-fmt-0.2.0>          let root = Derivation {
iets-fmt-0.2.0>              name: "root".into(),
iets-fmt-0.2.0> -            outputs: [("out".to_string(), DerivationOutput::InputAddressed(sp("root-out")))].into(),
iets-fmt-0.2.0> +            outputs: [(
iets-fmt-0.2.0> +                "out".to_string(),
iets-fmt-0.2.0> +                DerivationOutput::InputAddressed(sp("root-out")),
iets-fmt-0.2.0> +            )]
iets-fmt-0.2.0> +            .into(),
iets-fmt-0.2.0>              input_drvs: [(
iets-fmt-0.2.0>                  sp("dep.drv"),
iets-fmt-0.2.0>                  InputNode::of(used.iter().map(|s| s.to_string()).collect()),
iets-fmt-0.2.0> Diff in /build/source/src/remote/grpc/backend.rs:746:
iets-fmt-0.2.0>      fn a_used_missing_output_below_a_missing_root_is_built() {
iets-fmt-0.2.0>          // `dep-out` is used and missing: `dep` joins `root` in the build set,
iets-fmt-0.2.0>          // while the unused `dep-dev` is never even asked about
iets-fmt-0.2.0> -        let (needs, calls) = run_raw(
iets-fmt-0.2.0> -            &two_outputs(&["out"]),
iets-fmt-0.2.0> -            &["root"],
iets-fmt-0.2.0> -            &["dep-dev".into()],
iets-fmt-0.2.0> -        );
iets-fmt-0.2.0> +        let (needs, calls) = run_raw(&two_outputs(&["out"]), &["root"], &["dep-dev".into()]);
iets-fmt-0.2.0>          assert_eq!(needs, vec!["dep", "root"]);
iets-fmt-0.2.0>          assert_eq!(calls, vec![vec!["root-out"], vec!["dep-out"]]);
iets-fmt-0.2.0>      }
error: Cannot build '/nix/store/4nb4z2d6qp87m07q8dzsv5b7dp0z682l-iets-fmt-0.2.0.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/5av9qb2a80xsw02d1kisnwq8p1ihzxfs-iets-fmt-0.2.0
       Last 25 log lines:
       >          };
       >          let root = Derivation {
       >              name: "root".into(),
       > -            outputs: [("out".to_string(), DerivationOutput::InputAddressed(sp("root-out")))].into(),
       > +            outputs: [(
       > +                "out".to_string(),
       > +                DerivationOutput::InputAddressed(sp("root-out")),
       > +            )]
       > +            .into(),
       >              input_drvs: [(
       >                  sp("dep.drv"),
       >                  InputNode::of(used.iter().map(|s| s.to_string()).collect()),
       > Diff in /build/source/src/remote/grpc/backend.rs:746:
       >      fn a_used_missing_output_below_a_missing_root_is_built() {
       >          // `dep-out` is used and missing: `dep` joins `root` in the build set,
       >          // while the unused `dep-dev` is never even asked about
       > -        let (needs, calls) = run_raw(
       > -            &two_outputs(&["out"]),
       > -            &["root"],
       > -            &["dep-dev".into()],
       > -        );
       > +        let (needs, calls) = run_raw(&two_outputs(&["out"]), &["root"], &["dep-dev".into()]);
       >          assert_eq!(needs, vec!["dep", "root"]);
       >          assert_eq!(calls, vec![vec!["root-out"], vec!["dep-out"]]);
       >      }
       For full logs, run:
         nix log /nix/store/4nb4z2d6qp87m07q8dzsv5b7dp0z682l-iets-fmt-0.2.0.drv