Redirecting output to a program like `head` causes a panic

[Priw8]

$ RUST_BACKTRACE=1 stringsext input-file | head

Results in the following once it tries to print the 11th line:

thread '<unnamed>' panicked at /home/priw8/.cargo/registry/src/index.crates.io-6f17d22bba15001f/stringsext-2.3.4/src/main.rs:165:37:
Error: Can not sent result through output channel. Write permissions? Is there enough space? : SendError { .. }
stack backtrace:
   0: rust_begin_unwind
   1: core::panicking::panic_fmt
   2: core::result::unwrap_failed
   3: <F as scoped_threadpool::FnBox>::call_box
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
thread 'main' panicked at /home/priw8/.cargo/registry/src/index.crates.io-6f17d22bba15001f/scoped_threadpool-0.1.9/src/lib.rs:236:13:
Thread pool worker panicked
stack backtrace:
   0: std::panicking::begin_panic
   1: scoped_threadpool::Scope::join_all
   2: scoped_threadpool::Pool::scoped
   3: stringsext::main
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

I guess head stops accepting any input once it gets the amount of lines it wants. stringsext could probably exit gracefully once the output becomes unwritable