these 4 derivations will be built:
  /nix/store/2q9mc7024cp29ygysvmn7a0v0s040sxf-iets-fuzz-diff-0.0.0.drv
  /nix/store/9vd7dzagki34qhc34khslyz0gq5d00ir-iets-0.1.0.drv
  /nix/store/bp61qgdd065qw8dia8jpysplkjh964d1-iets-conformance-adapter.drv
  /nix/store/kadhyhf2xnx5ad1bqrapnbznyd2m8kdc-nix-conformance-iets.drv
building '/nix/store/9vd7dzagki34qhc34khslyz0gq5d00ir-iets-0.1.0.drv'
building '/nix/store/2q9mc7024cp29ygysvmn7a0v0s040sxf-iets-fuzz-diff-0.0.0.drv'
iets-0.1.0> Running phase: unpackPhase
iets-0.1.0> unpacking source archive /nix/store/ri38ih28nlrrdn1mf5p7kyy4wwn290qk-source
iets-0.1.0> source root is source
iets-0.1.0> Running phase: patchPhase
iets-0.1.0> Executing configureCargoCommonVars
iets-0.1.0> decompressing cargo artifacts from /nix/store/0sdkfrixhysvw11wwgf6vwsy7bcri5g1-iets-deps-0.1.0/target.tar.zst to target
iets-fuzz-diff-0.0.0> Running phase: unpackPhase
iets-fuzz-diff-0.0.0> unpacking source archive /nix/store/8hmss1acjlhg9c2i8qv0v27wy36pq3hl-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/65413rj78fmfdh6wndfgjb51890qn8bw-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/cr0wigygmg260ia6i5ykd343xwjl7y18-iets-fuzz-diff-deps-0.0.0/target.tar.zst to target
iets-fuzz-diff-0.0.0> patchPhase completed in 57 seconds
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/4xasvnhsyam6m5wwm4xafl5dmg1kkpsi-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 1.98.0 (797e8a9bc 2026-08-05)
iets-fuzz-diff-0.0.0> +++ command cargo build --release --message-format json-render-diagnostics --locked --bin fuzz-diff --bin conformance-adapter
iets-0.1.0> patchPhase completed in 1 minutes 31 seconds
iets-0.1.0> Running phase: updateAutotoolsGnuConfigScriptsPhase
iets-fuzz-diff-0.0.0>    Compiling iets v0.1.0 (/build/source)
iets-0.1.0> Running phase: configurePhase
iets-0.1.0> will append /build/source/.cargo-home/config.toml with contents of /nix/store/kcp4b936hbdmdqyk70cz6fyd4gnf3msb-vendor-cargo-deps/config.toml
iets-0.1.0> default configurePhase, nothing to do
iets-0.1.0> Running phase: buildPhase
iets-0.1.0> +++ command cargo --version
iets-0.1.0> cargo 1.98.0 (797e8a9bc 2026-08-05)
iets-0.1.0> +++ command cargo build --release --message-format json-render-diagnostics --locked
iets-0.1.0>    Compiling iets v0.1.0 (/build/source)
iets-fuzz-diff-0.0.0>    Compiling iets-fuzz v0.0.0 (/build/source/fuzz)
iets-fuzz-diff-0.0.0>     Finished `release` profile [optimized] target(s) in 8m 49s
iets-fuzz-diff-0.0.0> searching for bins/libs to install from cargo build log at cargoBuildLogc5iT.json
iets-fuzz-diff-0.0.0> installing /build/source/fuzz/target/release/conformance-adapter in postBuildInstallFromCargoBuildLogOutTempBv1/bin
iets-fuzz-diff-0.0.0> installing /build/source/fuzz/target/release/fuzz-diff in postBuildInstallFromCargoBuildLogOutTempBv1/bin
iets-fuzz-diff-0.0.0> searching for bins/libs complete
iets-fuzz-diff-0.0.0> buildPhase completed in 8 minutes 52 seconds
iets-fuzz-diff-0.0.0> Running phase: installPhase
iets-fuzz-diff-0.0.0> actually installing contents of postBuildInstallFromCargoBuildLogOutTempBv1 to /nix/store/wwyi94dfwkqckbqp7yah0bm439p3chvp-iets-fuzz-diff-0.0.0
iets-fuzz-diff-0.0.0> stripping references to Rust toolchain
iets-fuzz-diff-0.0.0> Rust toolchain at: /nix/store/xvp6nfxayb07si2jaggqwvx3iykw89g2-rustc-1.98.1
iets-fuzz-diff-0.0.0> stripping Rust toolchain references done
iets-fuzz-diff-0.0.0> stripping references to cargoVendorDir from:
iets-fuzz-diff-0.0.0> /nix/store/wwyi94dfwkqckbqp7yah0bm439p3chvp-iets-fuzz-diff-0.0.0/bin/conformance-adapter
iets-fuzz-diff-0.0.0> /nix/store/wwyi94dfwkqckbqp7yah0bm439p3chvp-iets-fuzz-diff-0.0.0/bin/fuzz-diff
iets-fuzz-diff-0.0.0> stripping references done
iets-fuzz-diff-0.0.0> Running phase: fixupPhase
iets-fuzz-diff-0.0.0> shrinking RPATHs of ELF executables and libraries in /nix/store/wwyi94dfwkqckbqp7yah0bm439p3chvp-iets-fuzz-diff-0.0.0
iets-fuzz-diff-0.0.0> shrinking /nix/store/wwyi94dfwkqckbqp7yah0bm439p3chvp-iets-fuzz-diff-0.0.0/bin/fuzz-diff
iets-fuzz-diff-0.0.0> shrinking /nix/store/wwyi94dfwkqckbqp7yah0bm439p3chvp-iets-fuzz-diff-0.0.0/bin/conformance-adapter
iets-fuzz-diff-0.0.0> checking for references to /build/ in /nix/store/wwyi94dfwkqckbqp7yah0bm439p3chvp-iets-fuzz-diff-0.0.0...
iets-fuzz-diff-0.0.0> patching script interpreter paths in /nix/store/wwyi94dfwkqckbqp7yah0bm439p3chvp-iets-fuzz-diff-0.0.0
iets-fuzz-diff-0.0.0> stripping (with command strip and flags -S -p) in /nix/store/wwyi94dfwkqckbqp7yah0bm439p3chvp-iets-fuzz-diff-0.0.0/bin
iets-0.1.0>     Finished `release` profile [optimized + debuginfo] target(s) in 17m 29s
iets-0.1.0> searching for bins/libs to install from cargo build log at cargoBuildLognHNe.json
iets-0.1.0> installing /build/source/target/release/iets in postBuildInstallFromCargoBuildLogOutTempZne/bin
iets-0.1.0> searching for bins/libs complete
iets-0.1.0> buildPhase completed in 17 minutes 32 seconds
iets-0.1.0> Running phase: installPhase
iets-0.1.0> actually installing contents of postBuildInstallFromCargoBuildLogOutTempZne to /nix/store/155kbw1gybnxwspx11shvg3qkcl71va6-iets-0.1.0
iets-0.1.0> stripping references to Rust toolchain
iets-0.1.0> Rust toolchain at: /nix/store/xvp6nfxayb07si2jaggqwvx3iykw89g2-rustc-1.98.1
iets-0.1.0> stripping Rust toolchain references done
iets-0.1.0> stripping references to cargoVendorDir from:
iets-0.1.0> /nix/store/155kbw1gybnxwspx11shvg3qkcl71va6-iets-0.1.0/bin/iets
iets-0.1.0> stripping references done
iets-0.1.0> Running phase: fixupPhase
iets-0.1.0> shrinking RPATHs of ELF executables and libraries in /nix/store/155kbw1gybnxwspx11shvg3qkcl71va6-iets-0.1.0
iets-0.1.0> shrinking /nix/store/155kbw1gybnxwspx11shvg3qkcl71va6-iets-0.1.0/bin/iets
iets-0.1.0> checking for references to /build/ in /nix/store/155kbw1gybnxwspx11shvg3qkcl71va6-iets-0.1.0...
iets-0.1.0> patching script interpreter paths in /nix/store/155kbw1gybnxwspx11shvg3qkcl71va6-iets-0.1.0
iets-0.1.0> stripping (with command strip and flags -S -p) in /nix/store/155kbw1gybnxwspx11shvg3qkcl71va6-iets-0.1.0/bin
building '/nix/store/bp61qgdd065qw8dia8jpysplkjh964d1-iets-conformance-adapter.drv'
iets-conformance-adapter> structuredAttrs is enabled
building '/nix/store/kadhyhf2xnx5ad1bqrapnbznyd2m8kdc-nix-conformance-iets.drv'
nix-conformance-iets> SKIP lang/eval-okay-closure.nix
nix-conformance-iets> SKIP lang/eval-okay-functionargs.nix
error: timed out after 1200 seconds