[INFO] updating cached repository https://github.com/samrat/rusl
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d3f3f59cf7ecb2677b6f33f5850a8cca6c19ba00
[INFO] testing samrat/rusl against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamrat%2Frusl" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/samrat/rusl on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/samrat/rusl
[INFO] finished tweaking git repo https://github.com/samrat/rusl
[INFO] tweaked toml for git repo https://github.com/samrat/rusl written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/samrat/rusl already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] b4c83c1c2399323edd38b69cecb49c7eba530d0b95fea2d63d1a87979834c317
[INFO] running `"docker" "start" "-a" "b4c83c1c2399323edd38b69cecb49c7eba530d0b95fea2d63d1a87979834c317"`
[INFO] [stderr]    Compiling rusl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: expected one of `,`, `]`, or `|`, found `..`
[INFO] [stderr]    --> src/parser.rs:116:39
[INFO] [stderr]     |
[INFO] [stderr] 116 |                     [Ast::Symbol(k), _..]
[INFO] [stderr]     |                                       ^^ expected one of `,`, `]`, or `|` here
[INFO] [stderr] 
[INFO] [stderr] error: expected one of `,`, `]`, or `|`, found `..`
[INFO] [stderr]    --> src/parser.rs:141:26
[INFO] [stderr]     |
[INFO] [stderr] 141 |                     [f, _..] => {
[INFO] [stderr]     |                          ^^ expected one of `,`, `]`, or `|` here
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(slice_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(box_syntax, box_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:29:17
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let mut f = try!(File::open(filename));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     try!(f.read_to_string(&mut input_buffer));
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `rusl`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b4c83c1c2399323edd38b69cecb49c7eba530d0b95fea2d63d1a87979834c317"`
[INFO] running `"docker" "rm" "-f" "b4c83c1c2399323edd38b69cecb49c7eba530d0b95fea2d63d1a87979834c317"`
[INFO] [stdout] b4c83c1c2399323edd38b69cecb49c7eba530d0b95fea2d63d1a87979834c317