these 11 derivations will be built:
  /nix/store/27p4r1rp2vklvfshvi5nc328v9ldpf2h-Cargo.toml.drv
  /nix/store/2jlj5jlv8y4ykz98x4hnbiiswxpqxwn0-Cargo.toml.drv
  /nix/store/i3accgj7yx76qd6ysbqdr6l76n15ipnq-Cargo.toml.drv
  /nix/store/pbglyyd7saw0bgjhzws0gr1xrj5qpzx0-Cargo.toml.drv
  /nix/store/rxni4qqlz68a5cd5k3a21dbvn17z2ckj-Cargo.toml.drv
  /nix/store/zygmld86cpsllakm16qbrbgks30wkhwm-source.drv
  /nix/store/vg8mvfx5dpm3h1jh0c3vfv24mxyplgvh-iets-fuzzers-deps-0.0.0.drv
  /nix/store/4xpvpzb6yjqv0bxqn6cjgx17balf1dlh-iets-fuzzers-0.0.0.drv
  /nix/store/q7nchkbd346x2wjq6bny3zq0jhb7ijl0-iets-fuzz-diff-deps-0.0.0.drv
  /nix/store/vr5zkwskwbfj3hkwvcdcc4shnfl84dpb-iets-fuzz-diff-0.0.0.drv
  /nix/store/nayrf79cnsv58ybypb7qd73vh2kpxa3p-iets-fuzz-eval-check.drv
building '/nix/store/i3accgj7yx76qd6ysbqdr6l76n15ipnq-Cargo.toml.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=23&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/2jlj5jlv8y4ykz98x4hnbiiswxpqxwn0-Cargo.toml.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=22&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/i3accgj7yx76qd6ysbqdr6l76n15ipnq-Cargo.toml.drv' on farm.numtide.com:50051
Cargo.toml> elastic-arm-9a50e053: building i3accgj7yx76qd6ysbqdr6l76n15ipnq-Cargo.toml.drv
building '/nix/store/2jlj5jlv8y4ykz98x4hnbiiswxpqxwn0-Cargo.toml.drv' on farm.numtide.com:50051
Cargo.toml> elastic-arm-9a50e053: building 2jlj5jlv8y4ykz98x4hnbiiswxpqxwn0-Cargo.toml.drv
building '/nix/store/vr5zkwskwbfj3hkwvcdcc4shnfl84dpb-iets-fuzz-diff-0.0.0.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/vr5zkwskwbfj3hkwvcdcc4shnfl84dpb-iets-fuzz-diff-0.0.0.drv' on farm.numtide.com:50051
iets-fuzz-diff-0.0.0> elastic-arm-9a50e053: building vr5zkwskwbfj3hkwvcdcc4shnfl84dpb-iets-fuzz-diff-0.0.0.drv
iets-fuzz-diff-0.0.0> Running phase: unpackPhase
iets-fuzz-diff-0.0.0> unpacking source archive /nix/store/v5bd7if1lkjgspxa405jh1gfxsk19c1z-source
iets-fuzz-diff-0.0.0> source root is source
iets-fuzz-diff-0.0.0> Running phase: patchPhase
iets-fuzz-diff-0.0.0> moving Cargo.lock to Cargo.lock.orig, then will use /nix/store/kq9v6zvdgiah6mv4dzbjyn9k4avk7xlc-Cargo.lock as Cargo.lock
iets-fuzz-diff-0.0.0> Executing configureCargoCommonVars
iets-fuzz-diff-0.0.0> decompressing cargo artifacts from /nix/store/vc15l4c7imrg8i6yji7szxcqh29921zs-iets-fuzz-diff-deps-0.0.0/target.tar.zst to target
iets-fuzz-diff-0.0.0> Running phase: updateAutotoolsGnuConfigScriptsPhase
iets-fuzz-diff-0.0.0> Running phase: configurePhase
iets-fuzz-diff-0.0.0> will append /build/source/fuzz/.cargo-home/config.toml with contents of /nix/store/sk39iwiidas509qbms89l15ysif37imx-vendor-cargo-deps/config.toml
iets-fuzz-diff-0.0.0> default configurePhase, nothing to do
iets-fuzz-diff-0.0.0> Running phase: buildPhase
iets-fuzz-diff-0.0.0> +++ command cargo --version
iets-fuzz-diff-0.0.0> cargo 1.99.0 (5f94df478 2026-08-27)
iets-fuzz-diff-0.0.0> +++ command cargo build --release --message-format json-render-diagnostics --locked --bin fuzz-diff --bin conformance-adapter
iets-fuzz-diff-0.0.0>    Compiling iets-sys v0.2.0 (/build/source/crates/sys)
iets-fuzz-diff-0.0.0>    Compiling iets-core v0.2.0 (/build/source/crates/core)
iets-fuzz-diff-0.0.0>    Compiling iets-syntax v0.2.0 (/build/source/crates/syntax)
iets-fuzz-diff-0.0.0>    Compiling iets-store v0.2.0 (/build/source/crates/store)
iets-fuzz-diff-0.0.0>    Compiling iets v0.2.0 (/build/source)
iets-fuzz-diff-0.0.0>    Compiling iets-fuzz v0.0.0 (/build/source/fuzz)
iets-fuzz-diff-0.0.0> error[E0599]: no associated function or constant named `new` found for struct `Interner` in the current scope
iets-fuzz-diff-0.0.0>    --> src/parse.rs:41:33
iets-fuzz-diff-0.0.0>     |
iets-fuzz-diff-0.0.0>  41 |             interner: Interner::new(),
iets-fuzz-diff-0.0.0>     |                                 ^^^ associated function or constant not found in `Interner`
iets-fuzz-diff-0.0.0>     |
iets-fuzz-diff-0.0.0> note: if you're trying to build a new `Interner`, consider using `Interner::in_heap` which returns `Interner`
iets-fuzz-diff-0.0.0>    --> /build/source/crates/syntax/src/interner.rs:151:5
iets-fuzz-diff-0.0.0>     |
iets-fuzz-diff-0.0.0> 151 |     pub fn in_heap(heap: Arc<Heap>) -> Interner {
iets-fuzz-diff-0.0.0>     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
iets-fuzz-diff-0.0.0> 
iets-fuzz-diff-0.0.0> error[E0599]: no associated function or constant named `new` found for struct `Interner` in the current scope
iets-fuzz-diff-0.0.0>    --> src/parse.rs:137:35
iets-fuzz-diff-0.0.0>     |
iets-fuzz-diff-0.0.0> 137 |         self.interner = Interner::new();
iets-fuzz-diff-0.0.0>     |                                   ^^^ associated function or constant not found in `Interner`
iets-fuzz-diff-0.0.0>     |
iets-fuzz-diff-0.0.0> note: if you're trying to build a new `Interner`, consider using `Interner::in_heap` which returns `Interner`
iets-fuzz-diff-0.0.0>    --> /build/source/crates/syntax/src/interner.rs:151:5
iets-fuzz-diff-0.0.0>     |
iets-fuzz-diff-0.0.0> 151 |     pub fn in_heap(heap: Arc<Heap>) -> Interner {
iets-fuzz-diff-0.0.0>     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
iets-fuzz-diff-0.0.0> 
iets-fuzz-diff-0.0.0> For more information about this error, try `rustc --explain E0599`.
iets-fuzz-diff-0.0.0> error: could not compile `iets-fuzz` (lib) due to 2 previous errors
iets-fuzz-diff-0.0.0> warning: build failed, waiting for other jobs to finish...
error: build of '/nix/store/vr5zkwskwbfj3hkwvcdcc4shnfl84dpb-iets-fuzz-diff-0.0.0.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token' failed: Cannot build '/nix/store/vr5zkwskwbfj3hkwvcdcc4shnfl84dpb-iets-fuzz-diff-0.0.0.drv'.
       Reason: builder failed with exit code 101.
       Output paths:
         /nix/store/7klmswb39fwzdx2n92yxwamny74il7mj-iets-fuzz-diff-0.0.0
       Last 25 log lines:
       >     |
       >  41 |             interner: Interner::new(),
       >     |                                 ^^^ associated function or constant not found in `Interner`
       >     |
       > note: if you're trying to build a new `Interner`, consider using `Interner::in_heap` which returns `Interner`
       >    --> /build/source/crates/syntax/src/interner.rs:151:5
       >     |
       > 151 |     pub fn in_heap(heap: Arc<Heap>) -> Interner {
       >     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
       >
       > error[E0599]: no associated function or constant named `new` found for struct `Interner` in the current scope
       >    --> src/parse.rs:137:35
       >     |
       > 137 |         self.interner = Interner::new();
       >     |                                   ^^^ associated function or constant not found in `Interner`
       >     |
       > note: if you're trying to build a new `Interner`, consider using `Interner::in_heap` which returns `Interner`
       >    --> /build/source/crates/syntax/src/interner.rs:151:5
       >     |
       > 151 |     pub fn in_heap(heap: Arc<Heap>) -> Interner {
       >     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
       >
       > For more information about this error, try `rustc --explain E0599`.
       > error: could not compile `iets-fuzz` (lib) due to 2 previous errors
       > warning: build failed, waiting for other jobs to finish...
       For full logs, run:
         nix log /nix/store/vr5zkwskwbfj3hkwvcdcc4shnfl84dpb-iets-fuzz-diff-0.0.0.drv
error: Cannot build '/nix/store/vr5zkwskwbfj3hkwvcdcc4shnfl84dpb-iets-fuzz-diff-0.0.0.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/7klmswb39fwzdx2n92yxwamny74il7mj-iets-fuzz-diff-0.0.0
building '/nix/store/4xpvpzb6yjqv0bxqn6cjgx17balf1dlh-iets-fuzzers-0.0.0.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/4xpvpzb6yjqv0bxqn6cjgx17balf1dlh-iets-fuzzers-0.0.0.drv' on farm.numtide.com:50051
iets-fuzzers-0.0.0> elastic-arm-9a50e053: building 4xpvpzb6yjqv0bxqn6cjgx17balf1dlh-iets-fuzzers-0.0.0.drv
iets-fuzzers-0.0.0> Running phase: unpackPhase
iets-fuzzers-0.0.0> unpacking source archive /nix/store/v5bd7if1lkjgspxa405jh1gfxsk19c1z-source
iets-fuzzers-0.0.0> source root is source
iets-fuzzers-0.0.0> Running phase: patchPhase
iets-fuzzers-0.0.0> moving Cargo.lock to Cargo.lock.orig, then will use /nix/store/kq9v6zvdgiah6mv4dzbjyn9k4avk7xlc-Cargo.lock as Cargo.lock
iets-fuzzers-0.0.0> Executing configureCargoCommonVars
iets-fuzzers-0.0.0> decompressing cargo artifacts from /nix/store/6x87bcgb4drap18i4zx9svkiqmzg52kz-iets-fuzzers-deps-0.0.0/target.tar.zst to target
iets-fuzzers-0.0.0> Running phase: updateAutotoolsGnuConfigScriptsPhase
iets-fuzzers-0.0.0> Running phase: configurePhase
iets-fuzzers-0.0.0> will append /build/source/fuzz/.cargo-home/config.toml with contents of /nix/store/sk39iwiidas509qbms89l15ysif37imx-vendor-cargo-deps/config.toml
iets-fuzzers-0.0.0> default configurePhase, nothing to do
iets-fuzzers-0.0.0> Running phase: buildPhase
iets-fuzzers-0.0.0> +++ command cargo --version
iets-fuzzers-0.0.0> cargo 1.99.0 (5f94df478 2026-08-27)
iets-fuzzers-0.0.0> +++ command cargo build --target aarch64-unknown-linux-gnu --release --config 'profile.release.debug="line-tables-only"' --bin drv-eval --bin drv-gen --bin drv-read --bin eval --bin nar-gen --bin nar-read --bin nar-tree --bin parse --bin wire
iets-fuzzers-0.0.0>    Compiling iets-sys v0.2.0 (/build/source/crates/sys)
iets-fuzzers-0.0.0>    Compiling iets-core v0.2.0 (/build/source/crates/core)
iets-fuzzers-0.0.0>    Compiling iets-syntax v0.2.0 (/build/source/crates/syntax)
iets-fuzzers-0.0.0>    Compiling iets-store v0.2.0 (/build/source/crates/store)
iets-fuzzers-0.0.0>    Compiling iets v0.2.0 (/build/source)
iets-fuzzers-0.0.0>    Compiling iets-fuzz v0.0.0 (/build/source/fuzz)
iets-fuzzers-0.0.0> error[E0599]: no associated function or constant named `new` found for struct `Interner` in the current scope
iets-fuzzers-0.0.0>    --> src/parse.rs:41:33
iets-fuzzers-0.0.0>     |
iets-fuzzers-0.0.0>  41 |             interner: Interner::new(),
iets-fuzzers-0.0.0>     |                                 ^^^ associated function or constant not found in `Interner`
iets-fuzzers-0.0.0>     |
iets-fuzzers-0.0.0> note: if you're trying to build a new `Interner`, consider using `Interner::in_heap` which returns `Interner`
iets-fuzzers-0.0.0>    --> /build/source/crates/syntax/src/interner.rs:151:5
iets-fuzzers-0.0.0>     |
iets-fuzzers-0.0.0> 151 |     pub fn in_heap(heap: Arc<Heap>) -> Interner {
iets-fuzzers-0.0.0>     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
iets-fuzzers-0.0.0> 
iets-fuzzers-0.0.0> error[E0599]: no associated function or constant named `new` found for struct `Interner` in the current scope
iets-fuzzers-0.0.0>    --> src/parse.rs:137:35
iets-fuzzers-0.0.0>     |
iets-fuzzers-0.0.0> 137 |         self.interner = Interner::new();
iets-fuzzers-0.0.0>     |                                   ^^^ associated function or constant not found in `Interner`
iets-fuzzers-0.0.0>     |
iets-fuzzers-0.0.0> note: if you're trying to build a new `Interner`, consider using `Interner::in_heap` which returns `Interner`
iets-fuzzers-0.0.0>    --> /build/source/crates/syntax/src/interner.rs:151:5
iets-fuzzers-0.0.0>     |
iets-fuzzers-0.0.0> 151 |     pub fn in_heap(heap: Arc<Heap>) -> Interner {
iets-fuzzers-0.0.0>     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
iets-fuzzers-0.0.0> 
iets-fuzzers-0.0.0> For more information about this error, try `rustc --explain E0599`.
iets-fuzzers-0.0.0> error: could not compile `iets-fuzz` (lib) due to 2 previous errors
iets-fuzzers-0.0.0> warning: build failed, waiting for other jobs to finish...
error: build of '/nix/store/4xpvpzb6yjqv0bxqn6cjgx17balf1dlh-iets-fuzzers-0.0.0.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token' failed: Cannot build '/nix/store/4xpvpzb6yjqv0bxqn6cjgx17balf1dlh-iets-fuzzers-0.0.0.drv'.
       Reason: builder failed with exit code 101.
       Output paths:
         /nix/store/3ikbnc6r0wm38bzkii7i7vsv690cfhrs-iets-fuzzers-0.0.0
       Last 25 log lines:
       >     |
       >  41 |             interner: Interner::new(),
       >     |                                 ^^^ associated function or constant not found in `Interner`
       >     |
       > note: if you're trying to build a new `Interner`, consider using `Interner::in_heap` which returns `Interner`
       >    --> /build/source/crates/syntax/src/interner.rs:151:5
       >     |
       > 151 |     pub fn in_heap(heap: Arc<Heap>) -> Interner {
       >     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
       >
       > error[E0599]: no associated function or constant named `new` found for struct `Interner` in the current scope
       >    --> src/parse.rs:137:35
       >     |
       > 137 |         self.interner = Interner::new();
       >     |                                   ^^^ associated function or constant not found in `Interner`
       >     |
       > note: if you're trying to build a new `Interner`, consider using `Interner::in_heap` which returns `Interner`
       >    --> /build/source/crates/syntax/src/interner.rs:151:5
       >     |
       > 151 |     pub fn in_heap(heap: Arc<Heap>) -> Interner {
       >     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
       >
       > For more information about this error, try `rustc --explain E0599`.
       > error: could not compile `iets-fuzz` (lib) due to 2 previous errors
       > warning: build failed, waiting for other jobs to finish...
       For full logs, run:
         nix log /nix/store/4xpvpzb6yjqv0bxqn6cjgx17balf1dlh-iets-fuzzers-0.0.0.drv
error: Cannot build '/nix/store/4xpvpzb6yjqv0bxqn6cjgx17balf1dlh-iets-fuzzers-0.0.0.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/3ikbnc6r0wm38bzkii7i7vsv690cfhrs-iets-fuzzers-0.0.0
error: Cannot build '/nix/store/nayrf79cnsv58ybypb7qd73vh2kpxa3p-iets-fuzz-eval-check.drv'.
       Reason: 2 dependencies failed.
       Output paths:
         /nix/store/gaz5wcv4n5lfl8m5ys1lq3bd73bgw23q-iets-fuzz-eval-check