Cargo panics on cleaning a given package if there exists a build-dependency

[aDotInTheVoid]

Problem

Cargo panics on cleaning a given package if there exists a build-dependency

Steps
Cargo.toml

[package]
name = "bug3"
version = "0.1.0"
authors = ["Nixon <nixon.emoony@gmail.com>"]
edition = "2018"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]

[build-dependencies]
winapi="0.3"

build.rs

fn main() {}

src/main.rs

fn main() {
    println!("Hello, world!");
}

Notes

Output of cargo version:
cargo 1.43.0 (2cbe904 2020-05-03)

Backtrace

thread 'main' panicked at 'assertion failed: self.host', src/tools/cargo/src/cargo/core/profiles.rs:920:13
stack backtrace:
   0:        0x10fe85f9f - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hdfed66b3e2e8ce60
   1:        0x10feae8de - core::fmt::write::h9de7b13cfaa80b03
   2:        0x10fe7cfb7 - std::io::Write::write_fmt::h9197012b9d65a9a3
   3:        0x10fe89b6a - std::panicking::default_hook::{{closure}}::h7b209cdc44c5777f
   4:        0x10fe898ac - std::panicking::default_hook::hf135bc502e6f77db
   5:        0x10fe8a1d8 - std::panicking::rust_panic_with_hook::h7967810bc33e523b
   6:        0x10fefa78d - std::panicking::begin_panic::h7414d98c0be4ed86
   7:        0x10fa80107 - cargo::core::compiler::unit_dependencies::compute_deps::ha32d33dec3b96318
   8:        0x10fa7df8a - cargo::core::compiler::unit_dependencies::deps_of::hd28f168e6b72f5da
   9:        0x10fa7dd1b - cargo::core::compiler::unit_dependencies::deps_of_roots::h5ddb15b6fb8249da
  10:        0x10fa7c432 - cargo::core::compiler::unit_dependencies::build_unit_dependencies::hb96e1475bb43ef30
  11:        0x10f6f786e - cargo::ops::cargo_clean::clean::hccc035e46feacf55
  12:        0x10f64533d - cargo::commands::clean::exec::h52401136ab70b327
  13:        0x10f686328 - cargo::cli::main::hded602f842e07608
  14:        0x10f678bc0 - cargo::main::h0d62c47adf8ce237
  15:        0x10f67b5d6 - std::rt::lang_start::{{closure}}::ha264907e18bfc93f
  16:        0x10fe89ca8 - std::panicking::try::do_call::he58e98df0f664580
  17:        0x10fe93fdb - __rust_maybe_catch_panic
  18:        0x10fe8a6aa - std::rt::lang_start_internal::hfa21381d8ff23689
  19:        0x10f67b2b9 - main

[ehuss]

Thanks for the report. This is a duplicate of #8149, and has been fixed in 1.44.