Cannot have more than one target with the same name

Problem

I am trying to build lambda functions for deployment with aws, and have the following project structure:

| - Cargo.toml // workspace root
    | - lambda-1
    | - lambda-2
    | - lambda-3

The problem is that for all of the functions, they must each produce a binary with the name bootstrap. However, if I do this, then only 1 output file is generated with the name bootstrap, and it is random which one it is. There is another issue reported on this. Therefore,
The only workaround I've found is to not rename the output binaries, and instead copy them out to another output and rename them manually.

Possible Solution(s)

Perhaps it could be made possible to tell Cargo to output the files under a sub folder for each crate

i.e.:

| - target
    | - release
        | - lambda_1
            | - bootstrap
        | - lambda_2
            | - bootstrap
        | - lambda_3
            | - bootstrap

The issue names no source files or tests. Start by reproducing the workspace build with three crates whose binaries are all named bootstrap, then trace Cargo's release-artifact output handling. Done means each crate produces its own distinct bootstrap file in a predictable location without manual copying.