thread 'copy LTO artifacts for 14fjghlwjticu4oo' panicked at 'no saved object file in work product', compiler\rustc_codegen_ssa\src\back\write.rs:890:10

[var-che]

Code

use std::collections::HashMap;

fn handle(request: &str) -> String {
    let parsed = parse(request);
    let routed = route(parsed);
    format_response(routed)

}

fn parse(request: &str) -> HashMap<String, String> {
    let first_line = request.lines().next().unwrap_or("");
    let words: Vec<&str> = first_line.split_whitespace().collect();

    let mut conv = HashMap::new();

    if let [method, path, _protocol @ ..] = &words[..] {
        conv.insert("method".to_string(), words[0].to_string());
        conv.insert("path".to_string(), words[1].to_string());
    }
   
    conv.insert("resp_body".to_string(), "".to_string());
    conv

    
}

fn route(mut conv: HashMap<String, String>) -> HashMap<String, String> {
    //TODO - edit/create hashmap that has the response body
    //in a immutable way
    // Create a new HashMap with the existing data from conv
    conv.insert("resp_body".to_string(), "This is about us".to_string());
    conv
}

fn format_response(conv: HashMap<String, String>) -> String {
    format!(
        "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nContent-Length: {}\r\n\r\n{}",
        conv.get("resp_body").unwrap_or(&"".to_string()).len(),
        conv.get("resp_body").unwrap_or(&"".to_string())
    )
}


fn main() {
    
}

Meta

rustc --version --verbose:

<version>

Error output

thread 'copy LTO artifacts for 14fjghlwjticu4oo' panicked at 'no saved object file in work product', /rustc/d5a82bbd26e1ad8b7401f6a718a9c57c96905483\compiler\rustc_codegen_ssa\src\back\write.rs:890:10
stack backtrace:
   0:     0x7ffdd7619de2 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::ha63cfe4b75b3ba72
   1:     0x7ffdd7655d0b - core::fmt::write::h5f1cd682e23942b6
   2:     0x7ffdd760ca2a - <std::io::IoSliceMut as core::fmt::Debug>::fmt::h6b970ebe775b9627
   3:     0x7ffdd7619b2b - std::sys::common::alloc::realloc_fallback::h413616b22f3f3818
   4:     0x7ffdd761d459 - std::panicking::default_hook::h0c26739d8a69e80d
   5:     0x7ffdd761d0db - std::panicking::default_hook::h0c26739d8a69e80d
   6:     0x7ffd8fb9d16d - rustc_driver[6d4b93d6bcfc3289]::describe_lints
   7:     0x7ffdd761ddc0 - std::panicking::rust_panic_with_hook::hdf07e8fcc7859773
   8:     0x7ffdd761db1e - <std::panicking::begin_panic_handler::StrPanicPayload as core::panic::BoxMeUp>::get::hac35d15c76f5304d
   9:     0x7ffdd761aadf - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::ha63cfe4b75b3ba72
  10:     0x7ffdd761d7d0 - rust_begin_unwind
  11:     0x7ffdd768bb85 - core::panicking::panic_fmt::hd2b8fa31b060140f
  12:     0x7ffdd7652ac0 - <core::panic::panic_info::PanicInfo as core::fmt::Display>::fmt::h5377e9fccca41389
  13:     0x7ffdd7652a6b - <core::panic::panic_info::PanicInfo as core::fmt::Display>::fmt::h5377e9fccca41389
  14:     0x7ffdd768bb49 - core::option::expect_failed::hed6ba619d7fd0fcb
  15:     0x7ffd8d3dd742 - <rustc_codegen_llvm[8858754bf01e5222]::llvm_::ffi::Type>::i8p_llcx
  16:     0x7ffd8d3d1009 - <rustc_codegen_llvm[8858754bf01e5222]::LlvmCodegenBackend as rustc_codegen_ssa[81e5edbff33a6ce5]::traits::backend::CodegenBackend>::link     
  17:     0x7ffd8d4173d7 - <rustc_codegen_llvm[8858754bf01e5222]::builder::Builder as rustc_codegen_ssa[81e5edbff33a6ce5]::traits::builder::BuilderMethods>::unchecked_smul
  18:     0x7ffdd762fe9c - std::sys::windows::thread::Thread::new::h92ec69467f05d131
  19:     0x7ffe0e197614 - BaseThreadInitThunk
  20:     0x7ffe0f6e26b1 - RtlUserThreadStart

error: internal compiler error: unexpected panic

Backtrace

<backtrace>

[clubby789]

I'm not able to reproduce this. Does this happen consistently, and what is the version of rustc (rustc --version --verbose)?

[var-che]

I was not able to reproduce this as well. I just created new project, pasted that code and it worked.
rustc info
rustc 1.67.1 (d5a82bbd2 2023-02-07) binary: rustc commit-hash: d5a82bbd26e1ad8b7401f6a718a9c57c96905483 commit-date: 2023-02-07 host: x86_64-pc-windows-msvc release: 1.67.1 LLVM version: 15.0.6

[clubby789]

As there isn't an MCVE here, I'm going to close this as a duplicate of #109879. You may want to try updating your Rust version to the current stable