So I am trying to get my binaries to work while allowing them to reference mods declared in the lib.rs file, only I can’t get them to work.

My cargo file:

[package]
name = "mytestapp"
version = "0.1.0"
edition = "2021"

[features]
mainnet = []
testnet = []

[[bin]]
name = "file1"
path = "src/standalone_tools/file1.rs"
[[bin]]
name = "file2"
path = "src/standalone_tools/file2.rs"
[[bin]]
name = "file3"
path = "src/standalone_tools/file3.rs"

[dependencies]
sha2 = "0.10"

My lib.rs

pub mod standalone_tools;

My main.rs

use mytestapp::standalone_tools::mod1;
use mytestapp::standalone_tools::mod2;
use mytestapp::standalone_tools::nod3;

main{
// stuff
}

Without the [[bin]] directives and files in the cargo, this will compile up to this point without errors.

My src/standalone_tools/file1.rs

use mytestapp::standalone_tools::mod1;
use mytestapp::standalone_tools::mod2;
use mytestapp::standalone_tools::mod3;

main{
// stuff
}

the file2 and file3 pretty much do the same thing.

This creates an error when using cargo build --features "mainnet"

All the src/standalone_tools/ files, end up erroring saying:

error[E0433]: failed to resolve: use of undeclared crate or module `mytestapp`

If instead of use mytestapp::standalone_tools::mod1; I use use crate::standalone_tools::mod1;

the errors will change to

2 | use crate::standalone_tools::mod1;
  |            ^^^^^^^
  |            |
  |            unresolved import
  |            help: a similar path exists: `mytestapp::standalone_tools::mod1`

So none of my binaries compile.

If I remove all the [[bin]] declarations from the cargo file, the app will compile just fine, so using use mytestapp::standalone_tools::mod1; for example, works from the main.rs and compiles perfectly.

So why can’t the binaries in src/standalone_tools find it? How do I make it so I can compile the binaries without having to restructure each binary into its own folder with its own cargo file? What I am doing wrong when trying to import the modules to the binaries?