E0558 needs to be updated to new format

[sophiajt]

From: src/test/compile-fail/E0558.rs

E0558 needs a help converted to span_label, updating this:

error[E0558]: export_name attribute has invalid format
  --> src/test/compile-fail/E0558.rs:11:1
   |
11 | #[export_name] //~ ERROR E0558
   | ^^^^^^^^^^^^^^
   |
   = help: use #[export_name="*"]

To:

error[E0558]: export_name attribute has invalid format
  --> src/test/compile-fail/E0558.rs:11:1
   |
11 | #[export_name] //~ ERROR E0558
   | ^^^^^^^^^^^^^^ did you mean #[export_name="*"]?

[abhi-sm]

@jonathandturner
Hi,
@abhiQmar is also my handle. I would request you to assign to that account. Thank you
Didn't want to spam on the common thread hence writing it here. :)
Sorry for the inconvinience

[sophiajt]

I'll update it :)

[abhiQmar]

Hi @jonathandturner ,

I am stuck at this error while compiling. Tried cargo update on liblog, libserialize and libstd. But still facing the issue. Can you please help me with this.

Compiling serialize v0.0.0 (file:///Users/abhishek/code/rust/src/libserialize)
error[E0460]: found possibly newer version of crate `std` which `log` depends on
  --> src/libserialize/lib.rs:41:14
   |
41 | #[macro_use] extern crate log;
   |              ^^^^^^^^^^^^^^^^^
   |
   = note: perhaps that crate needs to be recompiled?
   = note: crate `std` path #1: /Users/abhishek/code/rust/build/x86_64-apple-darwin/stage0-sysroot/lib/rustlib/x86_64-apple-darwin/lib/libstd-9a82330aa9f25cb1.rlib
   = note: crate `std` path #2: /Users/abhishek/code/rust/build/x86_64-apple-darwin/stage0-sysroot/lib/rustlib/x86_64-apple-darwin/lib/libstd-9a82330aa9f25cb1.dylib
   = note: crate `log` path #1: /Users/abhishek/code/rust/build/x86_64-apple-darwin/stage0-rustc/x86_64-apple-darwin/release/deps/liblog-23e007e69714d505.dylib
   = note: crate `log` path #2: /Users/abhishek/code/rust/build/x86_64-apple-darwin/stage0-rustc/x86_64-apple-darwin/release/deps/liblog-23e007e69714d505.rlib

error: aborting due to previous error

error: Could not compile `serialize`.

I am done with the changes in this commit but can't test it.

[sophiajt]

Sometimes when you rebase master, you'll need to clean up the old build before you can start the new one (we'd like to fix this at some point):

python src/bootstrap/bootstrap.py --clean