these 3 derivations will be built:
  /nix/store/9ypwzhq2lqbmz5g2qpzcc9j7pzwqfq80-iets-fuzz-diff-0.0.0.drv
  /nix/store/vchq7mbkh8jvli5np2snp72m66axbmxk-iets-fuzzers-0.0.0.drv
  /nix/store/c77z9b1fakn2w4rsjnyfcckk4f1mq7jy-iets-fuzz-wire-check.drv
building '/nix/store/vchq7mbkh8jvli5np2snp72m66axbmxk-iets-fuzzers-0.0.0.drv' on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=23&system=aarch64-linux'
building '/nix/store/vchq7mbkh8jvli5np2snp72m66axbmxk-iets-fuzzers-0.0.0.drv' on farm.numtide.com:50051
iets-fuzzers-0.0.0> elastic-arm-33ab032c: building vchq7mbkh8jvli5np2snp72m66axbmxk-iets-fuzzers-0.0.0.drv
iets-fuzzers-0.0.0> Running phase: unpackPhase
iets-fuzzers-0.0.0> unpacking source archive /nix/store/kmf17k78xfjfkq5bmqyqh0jnja0hkjaf-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/q2jq5fyhj4h5x0q0a8s2rw84j9y6syan-Cargo.lock as Cargo.lock
iets-fuzzers-0.0.0> Executing configureCargoCommonVars
iets-fuzzers-0.0.0> decompressing cargo artifacts from /nix/store/d66v1m70hz9sf2pv9agh51z9lv45qlg8-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/61661qdvhb7f756fx8sk67s8j7bcq03v-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 1.98.0 (797e8a9bc 2026-08-05)
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 v0.2.0 (/build/source)
iets-fuzzers-0.0.0>    Compiling iets-fuzz v0.0.0 (/build/source/fuzz)
iets-fuzzers-0.0.0>     Finished `release` profile [optimized + debuginfo] target(s) in 4m 00s
iets-fuzzers-0.0.0> buildPhase completed in 4 minutes 0 seconds
iets-fuzzers-0.0.0> Running phase: installPhase
iets-fuzzers-0.0.0> linking previous artifacts /nix/store/d66v1m70hz9sf2pv9agh51z9lv45qlg8-iets-fuzzers-deps-0.0.0/target.tar.zst to /nix/store/b89kync6mag2a7x97ajy15mlpqbfgnk5-iets-fuzzers-0.0.0/target.tar.zst
iets-fuzzers-0.0.0> /*stdin*\            : 23.40%   (  1.10 GiB =>    264 MiB, /nix/store/b89kync6mag2a7x97ajy15mlpqbfgnk5-iets-fuzzers-0.0.0/target.tar.zst) 
could not copy /nix/store/b89kync6mag2a7x97ajy15mlpqbfgnk5-iets-fuzzers-0.0.0: error: gRPC FetchNars failed: Stream removed (Socket closed)
error: some outputs are unexpectedly invalid