Building repo, getting "undefined symbol: setupterm"

Bear with me here as I'm on NixOS so installing the dependencies has been a journey. I've cloned this repo and am just trying to run cargo build. I've gotten as far as installing CUDA and OptiX, to the point where it's actually building the path_tracer crate, but now I'm getting some scary codegen errors from rustc:

error: failed to run custom build command for `path_tracer v0.1.0 ($REPO_ROOT/examples/cuda/cpu/path_tracer)`

Caused by:
  process didn't exit successfully: `$REPO_ROOT/target/debug/build/path_tracer-970d6a9b9c38170f/build-script-build` (exit status: 101)
  --- stdout
  cargo:rerun-if-changed=../../gpu/path_tracer_gpu

  --- stderr
  warning: $REPO_ROOT/crates/cust/Cargo.toml: `default-features = [".."]` was found in [features]. Did you mean to use `default = [".."]`?
  error: failed to run `rustc` to learn about target-specific information

  Caused by:
    process didn't exit successfully: `rustc - --crate-name ___ --print=file-names -Zcodegen-backend=$REPO_ROOT/target/debug/deps/librustc_codegen_nvvm.so -Cllvm-args=-arch=compute_61 --target nvptx64-nvidia-cuda --crate-type bin --crate-type rlib --crate-type dylib --crate-type cdylib --crate-type staticlib --crate-type proc-macro --print=sysroot --print=cfg` (exit status: 1)
    --- stderr
    error: couldn't load codegen backend "$REPO_ROOT/target/debug/deps/librustc_codegen_nvvm.so": "$REPO_ROOT/target/debug/deps/librustc_codegen_nvvm.so: undefined symbol: setupterm"

  thread 'main' panicked at 'Did not find output file in rustc output', crates/cuda_builder/src/lib.rs:444:10
  stack backtrace:
     0: rust_begin_unwind
               at /rustc/4e89811b46323f432544f9c4006e40d5e5d7663f/library/std/src/panicking.rs:517:5
     1: core::panicking::panic_fmt
               at /rustc/4e89811b46323f432544f9c4006e40d5e5d7663f/library/core/src/panicking.rs:100:14
     2: core::panicking::panic_display
               at /rustc/4e89811b46323f432544f9c4006e40d5e5d7663f/library/core/src/panicking.rs:64:5
     3: core::option::expect_failed
               at /rustc/4e89811b46323f432544f9c4006e40d5e5d7663f/library/core/src/option.rs:1637:5
     4: core::option::Option<T>::expect
               at /rustc/4e89811b46323f432544f9c4006e40d5e5d7663f/library/core/src/option.rs:708:21
     5: cuda_builder::get_last_artifact
               at $REPO_ROOT/crates/cuda_builder/src/lib.rs:432:16
     6: cuda_builder::invoke_rustc
               at $REPO_ROOT/crates/cuda_builder/src/lib.rs:417:20
     7: cuda_builder::CudaBuilder::build
               at $REPO_ROOT/crates/cuda_builder/src/lib.rs:238:20
     8: build_script_build::main
               at ./build.rs:4:5
     9: core::ops::function::FnOnce::call_once
               at /rustc/4e89811b46323f432544f9c4006e40d5e5d7663f/library/core/src/ops/function.rs:227:5
  note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
warning: build failed, waiting for other jobs to finish...
error: build failed

Any tips on what do here?

Versions:

• CUDA 11.4.2
• OptiX 7.3.0
• LLVM 7.1.0
• NVidia driver 470.63.01
• rustc 1.57.0-nightly (4e89811b4 2021-10-16)

Start with crates/cuda_builder/src/lib.rs, especially invoke_rustc and get_last_artifact around the reported lines, then inspect the path_tracer build.rs entry point. Reproduce cargo build with the listed CUDA, OptiX, LLVM, driver, and rustc versions and investigate why librustc_codegen_nvvm.so cannot load setupterm. Done means the backend loads and the path_tracer crate builds without this failure.