Cargo links libcore twice when compiling with -Zbuild-std and panic=abort

[grayratrudeus2]

Problem

its seems like libcore is being linked twice one from built std and one from prebuilt one Error

error[E0152]: duplicate lang item in crate `core`: `sized`
  |
  = note: the lang item is first defined in crate `core` (which `std` depends on)
  = note: first definition in `core` loaded from <project-dir>\target\x86_64-pc-windows-msvc\release\deps\libcore-9934970537b87ae5.rlib, <project-dir>\target\x86_64-pc-windows-msvc\release\deps\libcore-9934970537b87ae5.rmeta
  = note: second definition in `core` loaded from <rustup-dir>\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\x86_64-pc-windows-msvc\lib\libcore-0a7d9524c210bd3d.rlib

For more information about this error, try `rustc --explain E0152`

Steps

1. create a binary project using cargo new
2. add panic="abort" in release profile
3. add rust flag "-Crelocation-model=pic"
4. compile using "cargo b -Zbuild-std --target x86_64-pc-windows-msvc --release"

Possible Solution(s)

No response

Notes

I'm trying to create PIE using rust yet no success

Version

cargo 1.81.0-nightly (bc89bffa5 2024-06-22)
release: 1.81.0-nightly
commit-hash: bc89bffa5987d4af8f71011c7557119b39e44a65
commit-date: 2024-06-22
host: x86_64-pc-windows-msvc
libgit2: 1.8.1 (sys:0.19.0 vendored)
libcurl: 8.6.0-DEV (sys:0.4.72+curl-8.6.0 vendored ssl:Schannel)
os: Windows 10.0.20348 [64-bit]

[ehuss]

Thanks for the report! I'm going to close as a duplicate of rust-lang/wg-cargo-std-aware#29. Support for abort hasn't ever really worked very well. In the meantime, I think you can do -Zbuild-std=std,panic_abort as a workaround.