fails to run on Nix

[DaRacci]

Related to #55 looks like there may have been a regression as I'm encountering the same on version 0.35.0 now.

I've tried using this via nix run, nix profile install and installing via home-manager.
My nix flake is located at https://github.com/daracci/nix-config, I've tried this on the machine nixe and user racci.

Script

#!/usr/bin/env rust-script

fn main() {
   println!("Hello World!");
}

Trace log

❯ RUST_LOG=trace ./test.rs
[2025-03-09T03:52:38Z INFO  rust_script] Arguments: Args { script: Some("/home/racci/Downloads/./test2.rs"), script_args: [], expr: false, loop_: false, count: false, base_path: None, pkg_path: None, gen_pkg_only: false, cargo_output: false, clear_cache: false, debug: false, dep: [], extern_: [], force: false, unstable_features: [], build_kind: Normal, toolchain_version: None, wrapper: None }
[2025-03-09T03:52:38Z INFO  rust_script] input: File("test2", "/home/racci/Downloads/./test2.rs", "#!/usr/bin/env rust-script\n\nfn main() {\n   println!(\"Hello World!\");\n}\n\n", "/home/racci/Downloads")
[2025-03-09T03:52:38Z INFO  rust_script] prelude_items: []
[2025-03-09T03:52:38Z INFO  rust_script] id: "5f0fdb65fe6b61f469d0ffef"
[2025-03-09T03:52:38Z INFO  rust_script] pkg_path: "/home/racci/.cache/rust-script/projects/5f0fdb65fe6b61f469d0ffef"
[2025-03-09T03:52:38Z INFO  rust_script] using_cache: true
[2025-03-09T03:52:38Z INFO  rust_script::manifest] part_mani: {}
[2025-03-09T03:52:38Z INFO  rust_script::manifest] source: None
[2025-03-09T03:52:38Z INFO  rust_script::manifest] manifest: [[bin]]
    name = "test2_5f0fdb65fe6b61f469d0ffef"
    path = "/home/racci/Downloads/./test2.rs"

    [dependencies]

    [package]
    authors = ["Anonymous"]
    edition = "2021"
    name = "test2_5f0fdb65fe6b61f469d0ffef"
    version = "0.1.0"

    [profile.release]
    strip = true

[2025-03-09T03:52:38Z INFO  rust_script] action: InputAction { cargo_output: false, force_compile: false, execute: true, pkg_path: "/home/racci/.cache/rust-script/projects/5f0fdb65fe6b61f469d0ffef", script_path: "/home/racci/Downloads/./test2.rs", using_cache: true, toolchain_version: None, debug: false, manifest: "[[bin]]\nname = \"test2_5f0fdb65fe6b61f469d0ffef\"\npath = \"/home/racci/Downloads/./test2.rs\"\n\n[dependencies]\n\n[package]\nauthors = [\"Anonymous\"]\nedition = \"2021\"\nname = \"test2_5f0fdb65fe6b61f469d0ffef\"\nversion = \"0.1.0\"\n\n[profile.release]\nstrip = true\n", script: None, build_kind: Normal, bin_name: "test2_5f0fdb65fe6b61f469d0ffef", original_script_path: Some("/home/racci/Downloads/./test2.rs") }
[2025-03-09T03:52:38Z INFO  rust_script] creating pkg dir...
[2025-03-09T03:52:38Z INFO  rust_script] generating Cargo package...
[2025-03-09T03:52:38Z DEBUG rust_script] overwrite_file("/home/racci/.cache/rust-script/projects/5f0fdb65fe6b61f469d0ffef/Cargo.toml", _)
[2025-03-09T03:52:38Z DEBUG rust_script] Equal content
[2025-03-09T03:52:38Z INFO  rust_script] disarming pkg dir cleanup...
[2025-03-09T03:52:38Z DEBUG rust_script] No old binary found
[2025-03-09T03:52:38Z INFO  rust_script] cleaning cache with max_age: 604800000
[2025-03-09T03:52:38Z INFO  rust_script] cutoff:            1740887558917 ms
[2025-03-09T03:52:38Z INFO  rust_script] checking: "/home/racci/.cache/rust-script/projects/5f0fdb65fe6b61f469d0ffef"
[2025-03-09T03:52:38Z INFO  rust_script] meta_mtime:        1741492029787 ms
[2025-03-09T03:52:38Z INFO  rust_script] checking: "/home/racci/.cache/rust-script/projects/2a7c584f95ebe8ea3cbfbe7b"
[2025-03-09T03:52:38Z INFO  rust_script] meta_mtime:        1741491822775 ms
[2025-03-09T03:52:38Z INFO  rust_script] checking: "/home/racci/.cache/rust-script/projects/998963fb66782b8797be8ada"
[2025-03-09T03:52:38Z INFO  rust_script] meta_mtime:        1741491866395 ms
[2025-03-09T03:52:38Z INFO  rust_script] done cleaning cache.
error: No such file or directory (os error 2)

nix-info -m

❯ nix-shell -p nix-info --run "nix-info -m"
 - system: `"x86_64-linux"`
 - host os: `Linux 6.12.13-xanmod1, NixOS, 25.05 (Warbler), 25.05.20250224.0196c01`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Lix, like Nix) 2.91.1
System type: x86_64-linux
Additional system types: i686-linux, x86_64-v1-linux, x86_64-v2-linux, x86_64-v3-linux
Features: gc, signed-caches
System configuration file: /etc/nix/nix.conf
User configuration files: /home/racci/.config/nix/nix.conf:/nix/store/k8g9np6kqdljmbz23nkpdpaqzxj2nc98-stylix-kde-config/nix/store/k8g9np6kqdljmbz23nkpdpaqzxj2nc98-stylix-kde-config/nix/store/k8g9np6kqdljmbz23nkpdpaqzxj2nc98-stylix-kde-config/etc/xdg/nix/nix.conf:/home/racci/.nix-profile/etc/xdg/nix/nix.conf:/home/racci/.local/state/nix/profile/etc/xdg/nix/nix.conf:/home/racci/.local/state/nix/profile/etc/xdg/nix/nix.conf:/etc/profiles/per-user/racci/etc/xdg/nix/nix.conf:/nix/var/nix/profiles/default/etc/xdg/nix/nix.conf:/run/current-system/sw/etc/xdg/nix/nix.conf
Store directory: /nix/store
State directory: /nix/var/nix
Data directory: /nix/store/zm68nasdmai8qzgzlb55m10mrl93dzqd-lix-2.91.1/share`
 - nixpkgs: `/nix/store/593xvgv994xlkm5mb7w4p1xxnzrs9wv6-source`

fastfetch

❯ fastfetch
                                               ┌────────────────────────────────────────────────────────────┐
                                               racci@nixe
          ▗▄▄▄       ▗▄▄▄▄    ▄▄▄▖             └────────────────────────────────────────────────────────────┘
          ▜███▙       ▜███▙  ▟███▛                                                       
           ▜███▙       ▜███▙▟███▛              ┌────────────────────────────────────────────────────────────┐
            ▜███▙       ▜██████▛                OS -> NixOS 25.05 (Warbler) x86_64
     ▟█████████████████▙ ▜████▛     ▟▙         │ ├ -> Linux 6.12.13-xanmod1
    ▟███████████████████▙ ▜███▙    ▟██▙        │ ├󰏖 -> 3120 (nix-system), 1153 (nix-user), 27 (nix-default)
           ▄▄▄▄▖           ▜███▙  ▟███▛        │ └ -> nushell 0.102.0
          ▟███▛             ▜██▛ ▟███▛          DE/WM -> Hyprland 0.47.0 (Wayland)
         ▟███▛               ▜▛ ▟███▛          │ ├󰧨 -> greetd (Wayland)
▟███████████▛                  ▟██████████▙    │ ├󰀻 -> Adwaita [GTK2/3/4]
▜██████████▛                  ▟███████████▛    │ ├ -> zellij 0.41.2
      ▟███▛ ▟▙               ▟███▛             │ ├󰻠 -> AMD Ryzen 9 5900X (24) @ 5.16 GHz
     ▟███▛ ▟██▙             ▟███▛              │ ├󰍛 -> NVIDIA GeForce GTX 1080 Ti [Discrete]
    ▟███▛  ▜███▙           ▝▀▀▀▀               │ ├󰍛 -> NVIDIA GeForce RTX 3090 [Discrete]
    ▜██▛    ▜███▙ ▜██████████████████▛         │ ├ -> 2.21 GiB / 16.00 GiB (14%) - tmpfs
     ▜▛     ▟████▙ ▜████████████████▛          │ ├ -> 1.56 TiB / 2.73 TiB (57%) - btrfs
           ▟██████▙       ▜███▙                │ ├ -> 1.81 TiB / 1.86 TiB (97%) - btrfs
          ▟███▛▜███▙       ▜███▙               │ ├󰑭 -> 25.38 GiB / 62.70 GiB (40%)
         ▟███▛  ▜███▙       ▜███▙              │ ├󰓡 -> 285.67 MiB / 31.35 GiB (1%)
         ▝▀▀▀    ▀▀▀▀▘       ▀▀▀▘              │ ├󰅐 -> 1 day, 20 hours, 34 mins
                                               │ └󰍹 -> 2560x1440 @ 144 Hz in 27" [External]
                                               │ └󰍹 -> 2560x1440 @ 144 Hz in 27" [External]
                                               │ └󰍹 -> 2560x1440 @ 165 Hz in 28" [External]
                                                SND -> Starship/Matisse HD Audio Controller Digital Stereo (IEC958) (100%)
                                               │ ├󰥠 -> Youtube (Mozilla firefox)
                                               │ └󰝚 -> Also Fitz - Schlatt Is Mad. (Paused)
                                               └────────────────────────────────────────────────────────────┘

                                                                                         

[MathiasSven]

I believe the issue lies here:

rust-script/src/main.rs

Line 450 in 241239f

let mut cmd = Command::new("cargo");

I was having the same issue, but then added cargo to my path and it started working fine. To me, this is something to be fixed on nixpkgs by patching cargo to be an absolute path to the store's cargo binary.

[acuteaangle]

This appears to indeed be an issue on the Nixpkgs side.
The package is currently unmaintained:
https://github.com/NixOS/nixpkgs/blob/dc2007c82ef9e44ea7eed6b878e4f19d6f99ce84/pkgs/by-name/ru/rust-script/package.nix#L32

I intend to fix the issues tonight and take over as the package maintainer.