ICE when copying artifacts fails

[TesterViera]

Vieras-Air:hello_world vieraproulx$ rustc main.rs
error: internal compiler error: unexpected panic
note: the compiler unexpectedly panicked. this is a bug.
note: we would appreciate a bug report: http://doc.rust-lang.org/complement-bugreport.html
note: run with `RUST_BACKTRACE=1` for a backtrace
thread 'rustc' panicked at 'called `Result::unwrap()` on an `Err` value: IoError { kind: PermissionDenied, desc: "couldn\'t create file", detail: Some("permission denied (Permission denied); path=main.o; mode=truncate; access=write") }', /Users/rustbuild/src/rust-buildbot/slave/nightly-dist-rustc-mac/build/src/libcore/result.rs:743
Vieras-Air:hello_world vieraproulx$ ls -l
total 32
-rw-r--r--  1 vieraproulx  staff  1572 Feb  9 18:28 main.0.o
-rw-r--r--  1 vieraproulx  staff   184 Feb  9 18:28 main.metadata.o
-rw-r--r--  1 root         staff  1572 Feb  9 18:25 main.o
-rw-r--r--  1 vieraproulx  staff    43 Feb  9 18:25 main.rs
Vieras-Air:hello_world vieraproulx$ RUST_BACKTRACE=1
Vieras-Air:hello_world vieraproulx$ rustc main.rs RUST_BACKTRACE=1
error: multiple input filenames provided
Vieras-Air:hello_world vieraproulx$ 

I have no idea why this is happening.

[kmcallister]

Try RUST_BACKTRACE=1 rustc main.rs. And can you provide a copy of main.rs?

[nagisa]

You already have a main.o file which belongs to user root. Since you’re compiling as a regular user now, rustc can’t overwrite the file and therefore fails.

@TesterViera You can circumvent the issue by removing the main.o file manually as root (sudo rm main.o).

I’ll try to get rid of the ICE in the mean time.

---

EDIT: this is backtrace:

   1:     0x7f212ef2b250 - sys::backtrace::write::h790fb0f6512bf2dbNvy
   2:     0x7f212ef4e950 - failure::on_fail::h69a387ea6bcf55a2L0F
   3:     0x7f212eeaf9e0 - rt::unwind::begin_unwind_inner::h030c2e32835cb4366EF
   4:     0x7f212eeb04f0 - rt::unwind::begin_unwind_fmt::h7213d03fa06dd249CDF
   5:     0x7f212ef4e7b0 - rust_begin_unwind
   6:     0x7f212ef98840 - panicking::panic_fmt::h0f5128f8e91dc358Tqw
   7:     0x7f212dbadb90 - back::write::run_passes::closure.38924
   8:     0x7f212dba5690 - back::write::run_passes::h9ba5b8f7a0313a4fpMc
   9:     0x7f212f52b1b0 - driver::phase_5_run_llvm_passes::h5ebc2495fc656cadmQa
  10:     0x7f212f5030c0 - driver::compile_input::hf09e69e74be0271bFba
  11:     0x7f212f5d4c00 - run_compiler::hb104f1bc2f7dbb1c6bc
  12:     0x7f212f5d3260 - thunk::F.Invoke<A, R>::invoke::h14091043261954473848
  13:     0x7f212f5d2190 - rt::unwind::try::try_fn::h13073505969807716931
  14:     0x7f212efbadd0 - rust_try_inner
  15:     0x7f212efbadc0 - rust_try
  16:     0x7f212f5d2440 - thunk::F.Invoke<A, R>::invoke::h17457102084908793726
  17:     0x7f212ef3ae40 - sys::thread::thread_start::hb6bd6aedd24b150c8FB
  18:     0x7f2128f782b0 - start_thread
  19:     0x7f212eb3c249 - __clone
  20:                0x0 - <unknown>

[TesterViera]

Thanks, that worked.

On Feb 10, 2015, at 11:57 AM, Simonas Kazlauskas notifications@github.com wrote:

You already have a main.o file which belongs to user root. Since you’re compiling as a regular user now, rustc can’t overwrite the file and therefore fails.

You can circumvent the issue by removing the main.o file manually as root (sudo rm main.o).

I’ll try to get rid of the ICE in the mean time.

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