this derivation will be built:
  /nix/store/dkwj6zf720n6p3cq6knjgshi0l0pq1q7-iets-nextest-0.1.0.drv
building '/nix/store/dkwj6zf720n6p3cq6knjgshi0l0pq1q7-iets-nextest-0.1.0.drv'
iets-nextest-0.1.0> Running phase: unpackPhase
iets-nextest-0.1.0> unpacking source archive /nix/store/fd9g8sqbh373fk8cgc88bfv4lf0wi1w3-source
iets-nextest-0.1.0> source root is source
iets-nextest-0.1.0> Running phase: patchPhase
iets-nextest-0.1.0> Executing configureCargoCommonVars
iets-nextest-0.1.0> decompressing cargo artifacts from /nix/store/5m0ncks97ccaqvscaxydm6yknc4kpzaq-iets-deps-0.1.0/target.tar.zst to target
iets-nextest-0.1.0> Running phase: updateAutotoolsGnuConfigScriptsPhase
iets-nextest-0.1.0> Running phase: configurePhase
iets-nextest-0.1.0> will append /build/source/.cargo-home/config.toml with contents of /nix/store/ad0zq5zmrj5ri9k8m2ylc9015pjg95i7-vendor-cargo-deps/config.toml
iets-nextest-0.1.0> default configurePhase, nothing to do
iets-nextest-0.1.0> Running phase: buildPhase
iets-nextest-0.1.0> +++ command cargo --version
iets-nextest-0.1.0> cargo 1.98.0 (797e8a9bc 2026-08-05)
iets-nextest-0.1.0> +++ command cargo nextest --version
iets-nextest-0.1.0> cargo-nextest 0.9.146
iets-nextest-0.1.0> release: 0.9.146
iets-nextest-0.1.0> host: x86_64-unknown-linux-gnu
iets-nextest-0.1.0> Running phase: checkPhase
iets-nextest-0.1.0> +++ command cargo nextest run --cargo-profile release --run-ignored only -E 'binary(nixpkgs_eval)'
iets-nextest-0.1.0>    Compiling iets v0.1.0 (/build/source)
iets-nextest-0.1.0>     Finished `release` profile [optimized + debuginfo] target(s) in 7m 13s
iets-nextest-0.1.0> ------------
iets-nextest-0.1.0>  Nextest run ID 34b6e363-6c15-4d36-8176-3591c640322f with nextest profile: default
iets-nextest-0.1.0>     Starting 1 test across 1 binary (22 binaries skipped)
iets-nextest-0.1.0>         FAIL [   0.173s] (1/1) iets::nixpkgs_eval nixpkgs_drvs_match_nix
iets-nextest-0.1.0>   stdout ---
iets-nextest-0.1.0> 
iets-nextest-0.1.0>     running 1 test
iets-nextest-0.1.0>     test nixpkgs_drvs_match_nix ... FAILED
iets-nextest-0.1.0> 
iets-nextest-0.1.0>     failures:
iets-nextest-0.1.0> 
iets-nextest-0.1.0>     failures:
iets-nextest-0.1.0>         nixpkgs_drvs_match_nix
iets-nextest-0.1.0> 
iets-nextest-0.1.0>     test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s
iets-nextest-0.1.0>     
iets-nextest-0.1.0>   stderr ---
iets-nextest-0.1.0> 
iets-nextest-0.1.0>     thread 'nixpkgs_drvs_match_nix' (1146) panicked at tests/nixpkgs_eval.rs:27:5:
iets-nextest-0.1.0>     env -u NIX_CONFIG NIX_CONF_DIR="/nonexistent" NIX_USER_CONF_FILES="" "/nix/store/7vpxiq5ilyp8i789xr82q4jdg2wy4hca-nix-eval-jobs-2.35.4/bin/nix-eval-jobs" "--store" "dummy://?read-only=false" "--impure" "--no-instantiate" "--workers" "4" "--arg" "nixpkgs" "/nix/store/61zfbhpgh5k6a8708l6mcap1kjbs3mz7-r5l65vg4gi4dnx54zkwagfb8jmlqniy5-source" "--arg" "limit" "null" "/build/source/tests/nixpkgs_eval.nix": error: creating directory "/homeless-shelter/.cache/nix": Permission denied
iets-nextest-0.1.0> 
iets-nextest-0.1.0>     note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
iets-nextest-0.1.0> 
iets-nextest-0.1.0>   Cancelling due to test failure: 
iets-nextest-0.1.0> ------------
iets-nextest-0.1.0>      Summary [   0.195s] 1 test run: 0 passed, 1 failed, 0 skipped
iets-nextest-0.1.0>         FAIL [   0.173s] (1/1) iets::nixpkgs_eval nixpkgs_drvs_match_nix
iets-nextest-0.1.0> error: test run failed
error: Cannot build '/nix/store/dkwj6zf720n6p3cq6knjgshi0l0pq1q7-iets-nextest-0.1.0.drv'.
       Reason: builder failed with exit code 100.
       Output paths:
         /nix/store/q8gbvb17ghlrlkzxds1zpvvvmawlwzgd-iets-nextest-0.1.0
       Last 25 log lines:
       >         FAIL [   0.173s] (1/1) iets::nixpkgs_eval nixpkgs_drvs_match_nix
       >   stdout ---
       >
       >     running 1 test
       >     test nixpkgs_drvs_match_nix ... FAILED
       >
       >     failures:
       >
       >     failures:
       >         nixpkgs_drvs_match_nix
       >
       >     test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s
       >     
       >   stderr ---
       >
       >     thread 'nixpkgs_drvs_match_nix' (1146) panicked at tests/nixpkgs_eval.rs:27:5:
       >     env -u NIX_CONFIG NIX_CONF_DIR="/nonexistent" NIX_USER_CONF_FILES="" "/nix/store/7vpxiq5ilyp8i789xr82q4jdg2wy4hca-nix-eval-jobs-2.35.4/bin/nix-eval-jobs" "--store" "dummy://?read-only=false" "--impure" "--no-instantiate" "--workers" "4" "--arg" "nixpkgs" "/nix/store/61zfbhpgh5k6a8708l6mcap1kjbs3mz7-r5l65vg4gi4dnx54zkwagfb8jmlqniy5-source" "--arg" "limit" "null" "/build/source/tests/nixpkgs_eval.nix": error: creating directory "/homeless-shelter/.cache/nix": Permission denied
       >
       >     note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
       >
       >   Cancelling due to test failure:
       > ------------
       >      Summary [   0.195s] 1 test run: 0 passed, 1 failed, 0 skipped
       >         FAIL [   0.173s] (1/1) iets::nixpkgs_eval nixpkgs_drvs_match_nix
       > error: test run failed
       For full logs, run:
         nix log /nix/store/dkwj6zf720n6p3cq6knjgshi0l0pq1q7-iets-nextest-0.1.0.drv