use std::env::temp_dir() to retrieve the temp directory in test_mkstemp
use std::env::temp_dir() to retrieve the temp directory in test_mkstemp

asomers/nix,xd009642/nix,carllerche/nix-rust,Susurrus/nix,Susurrus/nix,MarkusJais/nix-rust,geofft/nix-rust,nix-rust/nix,Susurrus/nix,xd009642/nix,berkowski/nix,xd009642/nix,berkowski/nix,geofft/nix-rust,MarkusJais/nix-rust,asomers/nix,berkowski/nix,MarkusJais/nix-rust,geofft/nix-rust,carllerche/nix-rust,nix-rust/nix,carllerche/nix-rust