"Could not compile `advapi32-sys` on a network-mapped drive

[horatius83]

I attempted to run the command:

cargo build --verbose

and got the following error:

PS Q:\projects\hello_world\src> cargo build --verbose
   Compiling advapi32-sys v0.1.2
     Running `rustc C:\Users\<name>\.cargo\registry\src\github.com-0a35038f75765ae4\advapi32-sys-0.1.2\build.rs --crat
e-name build_script_build --crate-type bin -C prefer-dynamic -g --out-dir Q:\projects\hello_world\target\debug\build\adv
api32-sys-cfef7a1f30f1e5f6 --emit=dep-info,link -L dependency=Q:\projects\hello_world\target\debug\deps -L dependency=Q:
\projects\hello_world\target\debug\deps --extern build=Q:\projects\hello_world\target\debug\deps\libbuild-304afb6bdff23d
72.rlib -Awarnings`
       Fresh winapi-build v0.1.1
       Fresh winapi v0.2.2
       Fresh libc v0.1.10
error: internal compiler error: unexpected panic
note: the compiler unexpectedly panicked. this is a bug.
note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports
note: run with `RUST_BACKTRACE=1` for a backtrace
thread 'rustc' panicked at 'called `Result::unwrap()` on an `Err` value: Error { repr: Os { code: 5, message: "Access is
 denied.\r\n" } }', ../src/libcore\result.rs:731


Could not compile `advapi32-sys`.

Caused by:
  Process didn't exit successfully: `rustc C:\Users\<name>\.cargo\registry\src\git.godevs.top-0a35038f75765ae4\advapi32-sy
s-0.1.2\build.rs --crate-name build_script_build --crate-type bin -C prefer-dynamic -g --out-dir Q:\projects\hello_world
\target\debug\build\advapi32-sys-cfef7a1f30f1e5f6 --emit=dep-info,link -L dependency=Q:\projects\hello_world\target\debu
g\deps -L dependency=Q:\projects\hello_world\target\debug\deps --extern build=Q:\projects\hello_world\target\debug\deps\
libbuild-304afb6bdff23d72.rlib -Awarnings` (exit code: 101)

This is my Cargo.toml file:

[package]
name = "hello_world"
version = "0.1.0"
authors = ["<name and e-mail address>"]

[dependencies]
rand="0.3.0"

Meta

rustc --version --verbose:

rustc 1.2.0 (082e47636 2015-08-03)
binary: rustc
commit-hash: 082e4763615bdbe7b4dd3dfd6fc2210b7773edf5
commit-date: 2015-08-03
host: x86_64-pc-windows-gnu
release: 1.2.0

Backtrace:

[alexcrichton]

Can you get a backtrace with RUST_BACKTRACE=1? Also, is there anything running in the background which is holding onto or holding open one of those output files? (e.g. an executable still running)

[horatius83]

PS Q:\projects\hello_world> cargo build --verbose
   Compiling advapi32-sys v0.1.2
     Running `rustc C:\Users\<name>\.cargo\registry\src\git.godevs.top-0a35038f75765ae4\advapi32-sys-0.1.2\build.rs --crat
e-name build_script_build --crate-type bin -C prefer-dynamic -g --out-dir Q:\projects\hello_world\target\debug\build\adv
api32-sys-cfef7a1f30f1e5f6 --emit=dep-info,link -L dependency=Q:\projects\hello_world\target\debug\deps -L dependency=Q:
\projects\hello_world\target\debug\deps --extern build=Q:\projects\hello_world\target\debug\deps\libbuild-304afb6bdff23d
72.rlib -Awarnings`
       Fresh winapi v0.2.2
       Fresh libc v0.1.10
       Fresh winapi-build v0.1.1
error: internal compiler error: unexpected panic
note: the compiler unexpectedly panicked. this is a bug.
note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports
thread 'rustc' panicked at 'called `Result::unwrap()` on an `Err` value: Error { repr: Os { code: 5, message: "Access is
 denied.\r\n" } }', ../src/libcore\result.rs:731

stack backtrace:
   1:         0x66139105 - sys::backtrace::write::h2345dffb6069c92cLAs
   2:         0x661428ac - rt::unwind::register::heb8429a612e0fecdqfw
   3:         0x6610561f - rt::unwind::begin_unwind_inner::h3f101c489f219c5fzcw
   4:         0x66105f9a - rt::unwind::begin_unwind_fmt::he6ac4cfedf51005fFbw
   5:         0x661422c3 - rust_begin_unwind
   6:         0x6615ecd9 - panicking::panic_fmt::h99704e91012c930eH8B
   7:         0x65bad8dd - metadata::csearch::is_default_impl::h00b99fbd2aeff47fbQo
   8:         0x65ba2bd9 - metadata::loader::Context<'a>::load_library_crate::h257060908c1ee1f7UTo
   9:         0x65b9ef63 - metadata::cstore::CStore::add_used_link_args::h94dd1e859ee72f80Gko
  10:         0x65b9b097 - metadata::creader::CrateReader<'a>.visit..Visitor<'v>::visit_item::hed65f5c686d0cab949m
  11:         0x65b9e35f - metadata::creader::CrateReader<'a>::read_crates::ha65368decfa753bblon
  12:         0x6ef9eb3b - driver::assign_node_ids_and_map::h05e579775eaf79194Da
  13:         0x6ef82a66 - driver::compile_input::hd2fb89b180675596Tba
  14:         0x6f06460d - run_compiler::h282bf3c3999ca505x7b
  15:         0x6f062295 - run::h1c01070ec49f4ed0d7b
  16:         0x6f061bd9 - run::h1c01070ec49f4ed0d7b
  17:         0x6617d82c - rust_try
  18:         0x6617d809 - rust_try
  19:         0x6612d4d5 - rt::unwind::try::inner_try::h75b7bddb15a6c10cs8v
  20:         0x6f061d97 - run::h1c01070ec49f4ed0d7b
  21:         0x66140404 - sys::process::Command::cwd::heb9c93936e48371awUu
  22:         0x77a759cd - BaseThreadInitThunk

Could not compile `advapi32-sys`.

Caused by:
  Process didn't exit successfully: `rustc C:\Users\<name>\.cargo\registry\src\git.godevs.top-0a35038f75765ae4\advapi32-sy
s-0.1.2\build.rs --crate-name build_script_build --crate-type bin -C prefer-dynamic -g --out-dir Q:\projects\hello_world
\target\debug\build\advapi32-sys-cfef7a1f30f1e5f6 --emit=dep-info,link -L dependency=Q:\projects\hello_world\target\debu
g\deps -L dependency=Q:\projects\hello_world\target\debug\deps --extern build=Q:\projects\hello_world\target\debug\deps\
libbuild-304afb6bdff23d72.rlib -Awarnings` (exit code: 101)

[horatius83]

The code was being compiled on a network-mapped drive in PowerShell if that helps at all.

[retep998]

Ah, that would do it. Network mapped drives mean you don't see the results of your actions until some time later. Which also means that after doing something, like deleting a file, there is a short period in which that file hangs in limbo until the action is processed. In this case Rust is probably assuming the file is immediately available, but that's clearly false, and so it panics. The way to fix this would be to find every place where rustc works with files and make it loop a few times to try to open the file while sleeping between attempts.

[horatius83]

What does I-ICE mean? Sorry I'm new to Rust and not very knowledgeable about GitHub in general.

[caipre]

Internal Compiler Error. There used to be a wiki about such things, not sure where that knowledge lives now.

Edit: Here's a backup anyway: https://github.com/rust-lang/rust-wiki-backup/blob/7097b584ebcfe514df646347fcda1f0e12390614/Note-tag-label-names-and-definitions.md

[steveklabnik]

@horatius83 are you still seeing this?

[retep998]

This issue should probably remain open until someone has thoroughly tested building rust code on a network mapped drive and verified that there are no issues.

[horatius83]

I am still observing, yes. Is there any particular build or anything I should test for my particular use-case?