Failed to build because of mismatched types

[senden9]

Hi!

It seems this crate fails to build. To reproduce just create a new "hello world" project, at this dependency to Cargo.toml, and try to build.

Versions:

rlimit v0.1.0
cargo 1.36.0 (c4fcfb725 2019-05-15)
rustc 1.36.0 (a53f9df32 2019-07-03)
OS: Arch Linux

❯ cargo build
   Compiling libc v0.2.58
   Compiling rlimit v0.1.0
error[E0308]: mismatched types
  --> /home/stefano/.cargo/registry/src/github.com-1ecc6299db9ec823/rlimit-0.1.0/src/lib.rs:50:45
   |
50 |         let code = unsafe { libc::setrlimit(resource, &mut limit as *mut libc::rlimit) };
   |                                             ^^^^^^^^ expected u32, found i32
help: you can convert an `i32` to `u32` and panic if the converted value wouldn't fit
   |
50 |         let code = unsafe { libc::setrlimit(resource.try_into().unwrap(), &mut limit as *mut libc::rlimit) };
   |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0308]: mismatched types
  --> /home/stefano/.cargo/registry/src/github.com-1ecc6299db9ec823/rlimit-0.1.0/src/lib.rs:61:45
   |
61 |         let code = unsafe { libc::getrlimit(resource, &mut limit as *mut libc::rlimit) };
   |                                             ^^^^^^^^ expected u32, found i32
help: you can convert an `i32` to `u32` and panic if the converted value wouldn't fit
   |
61 |         let code = unsafe { libc::getrlimit(resource.try_into().unwrap(), &mut limit as *mut libc::rlimit) };
   |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0308`.
error: Could not compile `rlimit`.

To learn more, run the command again with --verbose.

[Nugine]

Sorry, I didn't notice this issue.
This crate failed to build because libc::setrlimit changed its signature at 0.2.56.

https://docs.rs/libc/0.2.55/libc/fn.setrlimit.html
https://docs.rs/libc/0.2.56/libc/fn.setrlimit.html

I haved released rlimit 0.2.1 to follow this change.
Another break change is using std::io::Error instead of i32 as error type.

Hope you like it!

[Nugine]

libc #1365
libc #1382
libc #1384
libc #1397

libc's rlimit definition is different on different platforms. I will try to fix this.

[Nugine]

rlimit 0.3.0 has been released. It is a brand new version. Hope you like it!