failed to build lang/rust

[Paul Goyette <paul%whooppee.com@localhost>]

With pkgsrc updated to about 24 hours ago, my build finally got around 
to working on lang/rust

Here's the failure log...

   Compiling num-traits v0.1.40
   Compiling dtoa v0.4.2
   Compiling open v1.2.1
   Compiling unicode-xid v0.0.4
   Compiling ansi_term v0.9.0
error: Could not compile `cfg-if`.
warning: build failed, waiting for other jobs to finish...
error: build failed


command did not execute successfully: "/tmp/pkgs/lang/rust/work.x86_64/rust-bootstrap/bin/cargo" "build" "--target" "x86_64-unknown-netbsd" "--release" "--frozen" "--manifest-path" "/tmp/pkgs/lang/rust/work.x86_64/rustc-1.23.0-src/src/tools/rustbook/Cargo.toml"
expected success, got: exit code: 101


Traceback (most recent call last):
  File "./x.py", line 20, in <module>
    bootstrap.main()
  File "/tmp/pkgs/lang/rust/work.x86_64/rustc-1.23.0-src/src/bootstrap/bootstrap.py", line 758, in main
    bootstrap()
  File "/tmp/pkgs/lang/rust/work.x86_64/rustc-1.23.0-src/src/bootstrap/bootstrap.py", line 749, in bootstrap
    run(args, env=env, verbose=build.verbose)
  File "/tmp/pkgs/lang/rust/work.x86_64/rustc-1.23.0-src/src/bootstrap/bootstrap.py", line 148, in run
    raise RuntimeError(err)
RuntimeError: failed to run: /tmp/pkgs/lang/rust/work.x86_64/rustc-1.23.0-src/build/bootstrap/debug/bootstrap -v dist
*** Error code 1

Stop.
make[1]: stopped in /build/pkgsrc/lang/rust
*** Error code 1

Stop.
make: stopped in /build/pkgsrc/lang/rust


+------------------+--------------------------+----------------------------+
| Paul Goyette     | PGP Key fingerprint:     | E-mail addresses:          |
| (Retired)        | FA29 0E3B 35AF E8AE 6651 | paul at whooppee dot com   |
| Kernel Developer | 0786 F758 55DE 53BA 7731 | pgoyette at netbsd dot org |
+------------------+--------------------------+----------------------------+