Unable to pass an environment variable to target.runner

[leap0x7b]

Problem

error: could not execute process `$CARGO run --package runner -- target/x86_64-arius/debug/arius` (never executed)

Steps

[target]
runner = '$CARGO run --package runner --'

Possible Solution(s)

No response

Notes

No response

Version

cargo 1.61.0-nightly (ea2a21c 2022-02-15)
release: 1.61.0-nightly
commit-hash: ea2a21c994ca1e4d4c49412827b3cf4dcb158b1d
commit-date: 2022-02-15
host: aarch64-unknown-linux-gnu
libgit2: 1.3.0 (sys:0.13.23 vendored)
libcurl: 7.80.0-DEV (sys:0.4.51+curl-7.80.0 vendored ssl:OpenSSL/1.1.1m)
os: Arch Linux Rolling Release [64-bit]

[weihanglo]

Hi. Assumed you are referring to target.<triple>.runner config. At this moment, the implementation is not able to expand environment variables. Actually, as far as I know, to keep it simple, cargo tries to avoid duplicating what a shell should do.

As a workaround, if you know the value of the environment variable beforehand, you might want to configure it in env configuration. (Note that it doesn't support shell expansion either.)

[weihanglo]

Going to close this in favour of #10789, which I left more alternatives there.
Thanks for your report anyway!