cargo rustc --crate-type=lib,cdylib only uplifts the first artifact kind

[jschwe]

Problem

When manually specifying the crate-type on the command line via --crate-type=type1,type2 , the artifacts are correctly built (visible in the deps directory with a hash), but only the first crate-type artifact is uplifted to target/$profile.

Steps

Create a library with

[lib]
crate-type = [ "lib", "cdylib" ]

When building with cargo build or cargo rustc target/$profile contains both the rlib and the cdylib artifacts.

When using cargo rustc --crate-type=cdylib,lib instead, only the first artifact kind will be uplifted from the deps directory. (When reproducing, remember to run cargo clean after each step to delete the previous artifacts)

ll target/debug/deps/
total 20728
-rw-r--r--. 1 jschwender jschwender 17622720 Sep  5 11:10 librust_lib_requiring_envvar-80fb9f595b956614.a
-rwxr-xr-x. 2 jschwender jschwender  3594440 Sep  5 11:10 librust_lib_requiring_envvar-80fb9f595b956614.so
-rw-r--r--. 1 jschwender jschwender      397 Sep  5 11:10 rust_lib_requiring_envvar-80fb9f595b956614.d

ll target/debug/
total 3516
drwxr-xr-x. 1 jschwender jschwender     168 Sep  5 11:10 build
drwxr-xr-x. 1 jschwender jschwender     278 Sep  5 11:10 deps
drwxr-xr-x. 1 jschwender jschwender       0 Sep  5 11:10 examples
drwxr-xr-x. 1 jschwender jschwender     142 Sep  5 11:10 incremental
-rw-r--r--. 1 jschwender jschwender     216 Sep  5 11:10 librust_lib_requiring_envvar.d
-rwxr-xr-x. 2 jschwender jschwender 3594440 Sep  5 11:10 librust_lib_requiring_envvar.so

The order of the

Possible Solution(s)

No response

Notes

No response

Version

Tested on stable:

cargo 1.80.0 (376290515 2024-07-16)
release: 1.80.0
commit-hash: 37629051518c3df9ac2c1744589362a02ecafa99
commit-date: 2024-07-16
host: x86_64-unknown-linux-gnu
libgit2: 1.7.2 (sys:0.18.3 vendored)
libcurl: 8.6.0-DEV (sys:0.4.72+curl-8.6.0 vendored ssl:OpenSSL/1.1.1w)
ssl: OpenSSL 1.1.1w  11 Sep 2023
os: Fedora 40.0.0 [64-bit]

and nightly:

cargo 1.83.0-nightly (c1fa840a8 2024-08-29)
release: 1.83.0-nightly
commit-hash: c1fa840a85eca53818895901a53fae34247448b2
commit-date: 2024-08-29
host: x86_64-unknown-linux-gnu
libgit2: 1.8.1 (sys:0.19.0 vendored)
libcurl: 8.9.0-DEV (sys:0.4.74+curl-8.9.0 vendored ssl:OpenSSL/1.1.1w)
ssl: OpenSSL 1.1.1w  11 Sep 2023
os: Fedora 40.0.0 [64-bit]