kythe-indexer 0.1.0

# rustc version
rustc 1.28.0-dev (b9bf4f162 2018-06-02)# docs.rs version
cratesfyi 0.5.0 (579f83b 2018-03-05)# build log
Updating registry `https://github.com/rust-lang/crates.io-index`
Fresh rustc-serialize v0.3.24
Documenting kythe-indexer v0.1.0
Running `rustdoc --crate-name kythe_indexer .cargo/registry/src/github.com-1ecc6299db9ec823/kythe-indexer-0.1.0/src/lib.rs -o /home/cratesfyi/cratesfyi/doc -Z unstable-options --resource-suffix -20180602-1.28.0-dev-b9bf4f162 -L dependency=/home/cratesfyi/cratesfyi/debug/deps --extern rustc_serialize=/home/cratesfyi/cratesfyi/debug/deps/librustc_serialize-d05828e9f8a2cc23.rlib --extern-version rustc_serialize=rustc-serialize,0.3.24`
error[E0658]: Using the `?` macro Kleene operator for "at most one" repetition is unstable (see issue #48075)
--> <lint_array macros>:1:29
|
1 | ( $ ( $ lint : expr ) , * $ ( , ) ? ) => {
|                             ^^^^^
|
= help: add #![feature(macro_at_most_once_rep)] to the crate attributes to enable

thread 'main' panicked at 'Error(
CargoError(
ChainedError {
error: Could not document `kythe-indexer`.,
cause: process didn't exit successfully: `rustdoc --crate-name kythe_indexer .cargo/registry/src/github.com-1ecc6299db9ec823/kythe-indexer-0.1.0/src/lib.rs -o /home/cratesfyi/cratesfyi/doc -Z unstable-options --resource-suffix -20180602-1.28.0-dev-b9bf4f162 -L dependency=/home/cratesfyi/cratesfyi/debug/deps --extern rustc_serialize=/home/cratesfyi/cratesfyi/debug/deps/librustc_serialize-d05828e9f8a2cc23.rlib --extern-version rustc_serialize=rustc-serialize,0.3.24` (exit code: 101)
}
),
State {
next_error: None,
backtrace: None
}
)', src/bin/cratesfyi.rs:142:13
note: Run with `RUST_BACKTRACE=1` for a backtrace.