ICE when compiled target does not match the per-package-target with forced-target

[bsodmike]

Setup a new binary with the following Cargo.toml. This is to be compiled with nightly

Code

cargo-features = ["per-package-target"]

[package]
name = "rustc-ice-20052024"
version = "0.1.0"
edition = "2021"
forced-target = "aarch64-apple-darwin"

Notice we have specified a target for the package, let's trigger the ICE

RUST_BACKTRACE=full cargo test \
   --target x86_64-apple-darwin \
   -Z panic-abort-tests \
   -Z build-std="std,panic_abort" \
   --no-default-features

Meta

rustc --version --verbose:

rustc 1.80.0-nightly (d84b90375 2024-05-19)
binary: rustc
commit-hash: d84b9037541f45dc2c52a41d723265af211c0497
commit-date: 2024-05-19
host: x86_64-apple-darwin
release: 1.80.0-nightly
LLVM version: 18.1.4

Error output

thread 'main' panicked at src/cargo/core/compiler/unit_dependencies.rs:178:34:
no entry found for key
stack backtrace:
   0:        0x110e5d783 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h65e7ba8206e9fe5e
   1:        0x110e87d1b - core::fmt::write::h58ccd03eb960a1c5
   2:        0x110e57d6e - std::io::Write::write_fmt::h543d2c65af9d92d7
   3:        0x110e5d571 - std::sys_common::backtrace::print::h28f8b34c5088ad24
   4:        0x110e5f409 - std::panicking::default_hook::{{closure}}::h23c898e78e0d311d
   5:        0x110e5f150 - std::panicking::default_hook::he086d5b1ff0552cb
   6:        0x110e5fe26 - std::panicking::rust_panic_with_hook::he2c005d00e564b32
   7:        0x110e5f792 - std::panicking::begin_panic_handler::{{closure}}::hee8e5367887f1010
   8:        0x110e5dc59 - std::sys_common::backtrace::__rust_end_short_backtrace::haf909939cf0292ab
   9:        0x110e5f4c6 - _rust_begin_unwind
  10:        0x110ef1382 - core::panicking::panic_fmt::hbf2e94c7aba44d2d
  11:        0x110e8542b - core::panicking::panic_display::hf1f58c71e8cb7f34
  12:        0x110ef134c - core::option::expect_failed::h4673c1075ec35a4c
  13:        0x11067c053 - cargo[4bc1e3eef288eb09]::core::compiler::unit_dependencies::build_unit_dependencies
  14:        0x1106a8607 - cargo[4bc1e3eef288eb09]::ops::cargo_compile::create_bcx
  15:        0x1106a6d70 - cargo[4bc1e3eef288eb09]::ops::cargo_compile::compile_ws
  16:        0x1104b23c9 - cargo[4bc1e3eef288eb09]::ops::cargo_compile::compile
  17:        0x110505d1d - cargo[4bc1e3eef288eb09]::ops::cargo_test::compile_tests
  18:        0x110503885 - cargo[4bc1e3eef288eb09]::ops::cargo_test::run_tests
  19:        0x10ff863d0 - cargo[e4f6e22280b72f14]::commands::test::exec
  20:        0x10ff980e6 - <cargo[e4f6e22280b72f14]::cli::Exec>::exec
  21:        0x10ff8e6e4 - cargo[e4f6e22280b72f14]::main
  22:        0x10ff095a6 - std[2ef0a72e01431fdb]::sys_common::backtrace::__rust_begin_short_backtrace::<fn(), ()>
  23:        0x10ff1a2fc - std[2ef0a72e01431fdb]::rt::lang_start::<()>::{closure#0}
  24:        0x110e4ef97 - std::rt::lang_start_internal::h16d68c8f2a0c246f
  25:        0x10ff9e0bc - _main

I stumbled on this when using an older Intel based Mac.

[bjorn3]

This is a cargo crash. It looks like this is a duplicate of rust-lang/cargo#11898. It has the same panic location and uses both build-std and per-package-target like you do.

[bsodmike]

Thanks,oops yeah this is cargo related!