1474194 - firefox build error in rust part: toolkit/library/rust/shared/lib.rs

Status: UNCONFIRMED

(Firefox Build System :: General, defect)

Description

[felix-mozilla]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:61.0) Gecko/20100101 Firefox/61.0
Build ID: 20180511215810

Steps to reproduce:

$ make



Actual results:

error[E0432]: unresolved import `std::alloc::set_alloc_error_hook`
   --> toolkit/library/rust/shared/lib.rs:225:30
    |
225 |     use std::alloc::{Layout, set_alloc_error_hook};
    |                              ^^^^^^^^^^^^^^^^^^^^ no `set_alloc_error_hook` in `alloc`

error[E0658]: use of unstable library feature 'allocator_api': the precise API and guarantees it provides may be tweaked slightly, especially to possibly take into account the types being stored to make room for a future tracing garbage collector (see issue #32838)
   --> toolkit/library/rust/shared/lib.rs:225:22
    |
225 |     use std::alloc::{Layout, set_alloc_error_hook};
    |                      ^^^^^^
    |
    = help: add #![feature(allocator_api)] to the crate attributes to enable

error[E0658]: use of unstable library feature 'allocator_api': the precise API and guarantees it provides may be tweaked slightly, especially to possibly take into account the types being stored to make room for a future tracing garbage collector (see issue #32838)
   --> toolkit/library/rust/shared/lib.rs:231:25
    |
231 |     pub fn hook(layout: Layout) {
    |                         ^^^^^^
    |
    = help: add #![feature(allocator_api)] to the crate attributes to enable

error[E0658]: use of unstable library feature 'allocator_api': the precise API and guarantees it provides may be tweaked slightly, especially to possibly take into account the types being stored to make room for a future tracing garbage collector (see issue #32838)
   --> toolkit/library/rust/shared/lib.rs:233:35
    |
233 |             GeckoHandleOOM(layout.size());
    |                                   ^^^^
    |
    = help: add #![feature(allocator_api)] to the crate attributes to enable

error: aborting due to 4 previous errors

Some errors occurred: E0432, E0658.
For more information about an error, try `rustc --explain E0432`.
error: Could not compile `gkrust-shared`.

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



Expected results:

successful build.

Comment 1

[felix-mozilla]

oh I should add:

  $ rustc --version
  rustc 1.27.0 (3eda71b00 2018-06-19)
  $

Comment 2

[David Olah]

Hi,

I want to reproduce this issue but I will need more details in order to be able to. Please provide step by step all your actions that generate this issue.

Comment 3

[Mike Hommey [:glandium]]

How old is your source tree? This was fixed in bug 1471096, a couple weeks ago.