cargo build error: struct field shorthands are unstable (see issue #37340)

[nemobis]

With fastar f74dd0428c742e1aa454e3b954c5b84db8606fc7 , cargo 0.17.0-0ubuntu1, rustc 1.16.0+dfsg1-1~exp1ubuntu1 , Ubuntu 16.04 with Linux 4.10.0-22-generic.

error: struct field shorthands are unstable (see issue #37340)
  --> /home/fondazione/.cargo/registry/src/jackfan.us.kg-1ecc6299db9ec823/reapfrog-0.2.0/src/lib.rs:38:18
   |
38 |         Prefetch{f, read_pos: 0, length: len, p, to_drop: 0, prefetch_pos: 0}
   |                  ^

error: struct field shorthands are unstable (see issue #37340)
  --> /home/fondazione/.cargo/registry/src/jackfan.us.kg-1ecc6299db9ec823/reapfrog-0.2.0/src/lib.rs:38:47
   |
38 |         Prefetch{f, read_pos: 0, length: len, p, to_drop: 0, prefetch_pos: 0}
   |                                               ^

error: aborting due to 2 previous errors

error: Could not compile `reapfrog`.
Build failed, waiting for other jobs to finish...
error: build failed

[nemobis]

From rust-lang/rfcs#1682 and rust-lang/rust#37340 I can't quite tell what one is supposed to do, but if I change that line to have f: f and p: p this error goes away.

[the8472]

rustc 1.16.0

Field shorthand initializers have been in stable release since 1.17. Current stable is 1.18.

[the8472]

You can either install current cargo/rust versions via rustup or download a fastar binary for x64 linux from the github releases