[Pkg-rust-maintainers] broken

[jnqnfe at gmail.com]

Package: cargo
Version: 0.31.0-2
Severity: grave

I've just updated my Sid install which included an update of cargo from
0.30.0-1 to 0.31.0-2 and now I can't build anything...

I've tried multiple projects and all fail, thus does not seem to be
crate specific.

Note in the blow output: "(signal: 11, SIGSEGV: invalid memory
reference)"

I've tried rolling back to 0.30 but apt is complaining it doesn't know
that version... :/

---
$ cargo build
   Compiling pkg-config v0.3.14
   Compiling libc
v0.2.43                                                                
           
error: Could not compile `pkg-
config`.                                                              
warning: build failed, waiting for other jobs to finish...
error: Could not compile `libc`. 
---

with --verbose (with some paths stripped):

---
$ cargo build --verbose
   Compiling pkg-config v0.3.14
   Compiling libc
v0.2.43                                                                
           
     Running `rustc --crate-name pkg_config
/home/<username>/.cargo/registry/src/github.com-<hash>/pkg-config-
0.3.14/src/lib.rs --color always --crate-type lib --emit=dep-info,link
-C debuginfo=2 -C metadata=c3bf7efa56806644 -C extra-filename=-
c3bf7efa56806644 --out-dir /<stripped>/target/debug/deps -L
dependency=/<stripped>/target/debug/deps --cap-lints allow`
     Running `rustc --crate-name libc
/home/<username>/.cargo/registry/src/github.com-<hash>/libc-
0.2.43/src/lib.rs --color always --crate-type lib --emit=dep-info,link
-C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="use_std"' -C
metadata=cfab54b179767acb -C extra-filename=-cfab54b179767acb --out-dir 
/<stripped>/target/debug/deps -L
dependency=/<stripped>/target/debug/deps --cap-lints allow`
error: Could not compile `pkg-
config`.                                                              

Caused by:
  process didn't exit successfully: `rustc --crate-name pkg_config
/home/<username>/.cargo/registry/src/github.com-<hash>/pkg-config-
0.3.14/src/lib.rs --color always --crate-type lib --emit=dep-info,link
-C debuginfo=2 -C metadata=c3bf7efa56806644 -C extra-filename=-
c3bf7efa56806644 --out-dir /<stripped>/target/debug/deps -L
dependency=/<stripped>/target/debug/deps --cap-lints allow` (signal:
11, SIGSEGV: invalid memory reference)
warning: build failed, waiting for other jobs to finish...
error: Could not compile
`libc`.                                                                
    

Caused by:
  process didn't exit successfully: `rustc --crate-name libc
/home/<username>/.cargo/registry/src/github.com-<hash>/libc-
0.2.43/src/lib.rs --color always --crate-type lib --emit=dep-info,link
-C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="use_std"' -C
metadata=cfab54b179767acb -C extra-filename=-cfab54b179767acb --out-dir 
/<stripped>/target/debug/deps -L
dependency=/<stripped>/target/debug/deps --cap-lints allow` (signal:
11, SIGSEGV: invalid memory reference)
---