Building with cargo:
debug mode
❯ cargo build
Compiling app v0.1.0 (/home/neil/Development/github.com/neilg/fenix-issue)
Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
❯ ./target/debug/app
Hello, world!
release mode
❯ cargo build --release
Compiling app v0.1.0 (/home/neil/Development/github.com/neilg/fenix-issue)
Finished `release` profile [optimized] target(s) in 0.06s
❯ ./target/release/app
Hello, world!
Building with nix:
❯ nix build
❯ ./result/bin/app
fish: Job 1, './result/bin/app' terminated by signal SIGSEGV (Address boundary error)