[INFO] updating cached repository nagaBoulevard/wasp
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nagaBoulevard/wasp
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nagaBoulevard/wasp" "work/ex/beta-1.37-6/sources/1.36.0/gh/nagaBoulevard/wasp"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/nagaBoulevard/wasp'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nagaBoulevard/wasp" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nagaBoulevard/wasp"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nagaBoulevard/wasp'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 59bf714b3d77d79d75a420fbdaa9869be489a9cb
[INFO] sha for GitHub repo nagaBoulevard/wasp: 59bf714b3d77d79d75a420fbdaa9869be489a9cb
[INFO] validating manifest of nagaBoulevard/wasp on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nagaBoulevard/wasp on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nagaBoulevard/wasp
[INFO] finished frobbing nagaBoulevard/wasp
[INFO] frobbed toml for nagaBoulevard/wasp written to work/ex/beta-1.37-6/sources/1.36.0/gh/nagaBoulevard/wasp/Cargo.toml
[INFO] started frobbing nagaBoulevard/wasp
[INFO] finished frobbing nagaBoulevard/wasp
[INFO] frobbed toml for nagaBoulevard/wasp written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nagaBoulevard/wasp/Cargo.toml
[INFO] crate nagaBoulevard/wasp already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing nagaBoulevard/wasp against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/nagaBoulevard/wasp:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 7a1bbd899647c174be88c8ea57feb53ace4590b2e3265e9169bc82a60f21451e
[INFO] running `"docker" "start" "-a" "7a1bbd899647c174be88c8ea57feb53ace4590b2e3265e9169bc82a60f21451e"`
[INFO] [stderr]    Compiling wasp v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/lexer/mod.rs:328:9
[INFO] [stderr]     |
[INFO] [stderr] 328 | /         /// the `-` atom can also refer to a comment
[INFO] [stderr] 329 | |         /// this will start the comment parsing.
[INFO] [stderr] 330 | |         /// By doing it in the op_parser, it allows to easily parse `-`
[INFO] [stderr]     | |_______________________________________________________________________^
[INFO] [stderr] ...
[INFO] [stderr] 333 |           let res_str: String = res.clone().into_iter().collect();
[INFO] [stderr]     |           -------------------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/main.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     /// read the input wasp file, and put it in the `input` string
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 19 |     let input_handle = File::open("../input/test.ws").expect("Fail to open ../input/test.lp");
[INFO] [stderr]    |     ------------------------------------------------------------------------------------------ rustdoc does not generate documentation for statements
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(slice_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `wasp`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7a1bbd899647c174be88c8ea57feb53ace4590b2e3265e9169bc82a60f21451e"`
[INFO] running `"docker" "rm" "-f" "7a1bbd899647c174be88c8ea57feb53ace4590b2e3265e9169bc82a60f21451e"`
[INFO] [stdout] 7a1bbd899647c174be88c8ea57feb53ace4590b2e3265e9169bc82a60f21451e