elastic-arm-846f0e84: building 3all1041zq4rbch7dbh9byr9rj2qa2pk-iets-fuzz-diff-deps-0.0.0.drv
cargoArtifacts not set, will not reuse any cargo artifacts
Running phase: unpackPhase
unpacking source archive /nix/store/9drcq06ha9isbb7avpldasfsnq4404vv-source
source root is source
Running phase: patchPhase
will use /nix/store/9mxrva8s5ipsgmsgmgszw5sd554x6wxj-Cargo.lock as Cargo.lock
Executing configureCargoCommonVars
Running phase: updateAutotoolsGnuConfigScriptsPhase
Running phase: configurePhase
will append /build/source/fuzz/.cargo-home/config.toml with contents of /nix/store/y0wia5g6gn5i7k6m1b46d2hmd91c28ib-vendor-cargo-deps/config.toml
default configurePhase, nothing to do
Running phase: buildPhase
+++ command cargo --version
cargo 1.99.0 (5f94df478 2026-08-27)
+++ command cargo check --release --locked --bin fuzz-diff --bin conformance-adapter
error: cannot update the lock file /build/source/fuzz/Cargo.lock because --locked was passed to prevent this
help: to generate the lock file without accessing the network, remove the --locked flag and use --offline instead.