Closed Bug 1524818 Opened Last year Closed Last year

audioipc fails to build with nightly Rust: "error: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting"

Categories

(Core :: Audio/Video: cubeb, defect, P2)

defect

Tracking

()

RESOLVED FIXED
mozilla67
Tracking Status
firefox67 --- fixed

People

(Reporter: botond, Assigned: kinetik)

Details

I tried to build m-c with nightly Rust, and got some errors in the audioipc crate:

4:15.72 error: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
 4:15.72   --> media/audioipc/audioipc/src/errors.rs:10:1
 4:15.72    |
 4:15.72 10 | / error_chain! {
 4:15.72 11 | |     // Maybe replace with chain_err to improve the error info.
 4:15.72 12 | |     foreign_links {
 4:15.72 13 | |         Bincode(bincode::Error);
 4:15.72 ...  |
 4:15.72 21 | |     }
 4:15.72 22 | | }
 4:15.72    | |_^
 4:15.72    |
 4:15.72    = note: `-D deprecated` implied by `-D warnings`
 4:15.72    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
 4:15.72 error: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
 4:15.72   --> media/audioipc/audioipc/src/errors.rs:10:1
 4:15.72    |
 4:15.72 10 | / error_chain! {
 4:15.72 11 | |     // Maybe replace with chain_err to improve the error info.
 4:15.72 12 | |     foreign_links {
 4:15.72 13 | |         Bincode(bincode::Error);
 4:15.72 ...  |
 4:15.72 21 | |     }
 4:15.72 22 | | }
 4:15.72    | |_^
 4:15.72    |
 4:15.72    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
 4:15.72 error: aborting due to 2 previous errors
Rank: 15
Priority: -- → P2

This is an unfortunate interaction with a crate used by audioipc (error_chain) and warnings-as-errors.

Upstream error_chain bug: https://github.com/rust-lang-nursery/error-chain/issues/254

We can work around this until it's fixed upstream by silencing the deprecation warnings.

Assignee: nobody → kinetik
Status: NEW → ASSIGNED
Component: Audio/Video → Audio/Video: cubeb
Pushed by mgregan@mozilla.com:
https://hg.mozilla.org/integration/mozilla-inbound/rev/18fc86b209a4
Update audioipc to c2148b95 to fix build with nightly rustc.  r=chunmin
Status: ASSIGNED → RESOLVED
Closed: Last year
Resolution: --- → FIXED
Target Milestone: --- → mozilla67
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