Win7 - rustup-init update - confusing: it seems (maybe not?) rustup-init failing saying cargo should be on PATH but it already is.

Problem

Try to run RUSTUP to update existing system. It runs up to cargo update, then it fails because, allegedly, cargo directory is not on path.

d:\Downloads\Rust>cargo -V
cargo 1.56.0 (4ed5d137b 2021-10-04)

d:\Downloads\Rust>rustup-init.exe -V
rustup-init 1.24.3 (ce5817a94 2021-05-31)

d:\Downloads\Rust>rustup show
Default host: x86_64-pc-windows-msvc
rustup home:  C:\Users\burov.PC-ANALYTICDEV\.rustup

stable-x86_64-pc-windows-msvc (default)
rustc 1.56.1 (59eed8a2a 2021-11-01)

d:\Downloads\Rust>path
PATH=C:\Program Files (x86)\AMD APP\bin\x86_64;C:\Program Files ...skip....    ;C:\W
indows\System32\WindowsPowerShell\v1.0\;C:\Program Files\TortoiseGit\bin;C:\Prog
ram Files\Microsoft SQL Server\110\Tools\Binn\;C:\Users\burov.PC-ANALYTICDEV\.ca
rgo\bin;C:\Users\burov.PC-ANALYTICDEV\scoop\shims;C:\Users\burov.PC-ANALYTICDEV\
AppData\Local\Programs\Fiddler;e:\Microsoft VS Code\bin

Then it fails

d:\Downloads\Rust>rustup-init.exe

Welcome to Rust!

This will download and install the official compiler for the Rust
programming language, and its package manager, Cargo.

Rustup metadata and toolchains will be installed into the Rustup
home directory, located at:

  C:\Users\burov.PC-ANALYTICDEV\.rustup

This can be modified with the RUSTUP_HOME environment variable.

The Cargo home directory located at:

  C:\Users\burov.PC-ANALYTICDEV\.cargo

This can be modified with the CARGO_HOME environment variable.

The cargo, rustc, rustup and other commands will be added to
Cargo's bin directory, located at:

  C:\Users\burov.PC-ANALYTICDEV\.cargo\bin

This path will then be added to your PATH environment variable by
modifying the HKEY_CURRENT_USER/Environment/PATH registry key.

You can uninstall at any time with rustup self uninstall and
these changes will be reverted.

Current installation options:


   default host triple: x86_64-pc-windows-msvc
     default toolchain: stable (default)
               profile: default
  modify PATH variable: yes

1) Proceed with installation (default)
2) Customize installation
3) Cancel installation
>

info: profile set to 'default'
info: default host triple is x86_64-pc-windows-msvc
warning: Updating existing toolchain, profile choice will be ignored
info: syncing channel updates for 'stable-x86_64-pc-windows-msvc'
info: default toolchain set to 'stable-x86_64-pc-windows-msvc'

  stable-x86_64-pc-windows-msvc unchanged - rustc 1.56.1 (59eed8a2a 2021-11-01)


Rust is installed now. Great!

To get started you may need to restart your current shell.
This would reload its PATH environment variable to include
Cargo's bin directory (%USERPROFILE%\.cargo\bin).

Press the Enter key to continue.

or like that

d:\Downloads\Rust>rustup-init.exe

Welcome to Rust!

This will download and install the official compiler for the Rust
programming language, and its package manager, Cargo.

Rustup metadata and toolchains will be installed into the Rustup
home directory, located at:

  C:\Users\burov.PC-ANALYTICDEV\.rustup

This can be modified with the RUSTUP_HOME environment variable.

The Cargo home directory located at:

  C:\Users\burov.PC-ANALYTICDEV\.cargo

This can be modified with the CARGO_HOME environment variable.

The cargo, rustc, rustup and other commands will be added to
Cargo's bin directory, located at:

  C:\Users\burov.PC-ANALYTICDEV\.cargo\bin

This path will then be added to your PATH environment variable by
modifying the HKEY_CURRENT_USER/Environment/PATH registry key.

You can uninstall at any time with rustup self uninstall and
these changes will be reverted.

Current installation options:


   default host triple: x86_64-pc-windows-msvc
     default toolchain: stable (default)
               profile: default
  modify PATH variable: yes

1) Proceed with installation (default)
2) Customize installation
3) Cancel installation
>2

I'm going to ask you the value of each of these installation options.
You may simply press the Enter key to leave unchanged.

Default host triple? [x86_64-pc-windows-msvc]


Default toolchain? (stable/beta/nightly/none) [stable]


Profile (which tools and data to install)? (minimal/default/complete) [default]


Modify PATH variable? (Y/n)
n


Current installation options:


   default host triple: x86_64-pc-windows-msvc
     default toolchain: stable
               profile: default
  modify PATH variable: no

1) Proceed with installation (default)
2) Customize installation
3) Cancel installation
>

info: profile set to 'default'
info: setting default host triple to x86_64-pc-windows-msvc
warning: Updating existing toolchain, profile choice will be ignored
info: syncing channel updates for 'stable-x86_64-pc-windows-msvc'
info: default toolchain set to 'stable-x86_64-pc-windows-msvc'

  stable-x86_64-pc-windows-msvc unchanged - rustc 1.56.1 (59eed8a2a 2021-11-01)


Rust is installed now. Great!

To get started you need Cargo's bin directory (%USERPROFILE%\.cargo\bin) in
your PATH
environment variable. This has not been done automatically.

Press the Enter key to continue.

Steps

Just run rustup-init on my system...

Possible Solution(s)

No response

Notes

No response

Rustup version

d:\Downloads\Rust>rustup -V
rustup 1.24.3 (ce5817a94 2021-05-31)
info: This is the version for the rustup toolchain manager, not the rustc compiler.
info: The currently active `rustc` version is `rustc 1.56.1 (59eed8a2a 2021-11-01)`

Installed toolchains

d:\Downloads\Rust>rustup show
Default host: x86_64-pc-windows-msvc
rustup home:  C:\Users\burov.PC-ANALYTICDEV\.rustup

stable-x86_64-pc-windows-msvc (default)
rustc 1.56.1 (59eed8a2a 2021-11-01)

Start with the rustup-init.exe entry point and reproduce the reported Windows 7 flow using the PATH, rustup version, and installed toolchain shown in the issue. Compare the normal and customized outputs, then determine the expected behavior when Cargo's bin directory is already on PATH; the issue is done when that behavior is clear and the incorrect or confusing output is addressed.