[INFO] updating cached repository timtadh/rusty-slr
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/timtadh/rusty-slr
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/timtadh/rusty-slr" "work/ex/beta-1.38-1/sources/1.37.0/gh/timtadh/rusty-slr"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/timtadh/rusty-slr'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/timtadh/rusty-slr" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/timtadh/rusty-slr"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/timtadh/rusty-slr'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3de9202895b0f35e962be51798ff5697c1bae335
[INFO] sha for GitHub repo timtadh/rusty-slr: 3de9202895b0f35e962be51798ff5697c1bae335
[INFO] validating manifest of timtadh/rusty-slr on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of timtadh/rusty-slr on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing timtadh/rusty-slr
[INFO] finished frobbing timtadh/rusty-slr
[INFO] frobbed toml for timtadh/rusty-slr written to work/ex/beta-1.38-1/sources/1.37.0/gh/timtadh/rusty-slr/Cargo.toml
[INFO] started frobbing timtadh/rusty-slr
[INFO] finished frobbing timtadh/rusty-slr
[INFO] frobbed toml for timtadh/rusty-slr written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/timtadh/rusty-slr/Cargo.toml
[INFO] crate timtadh/rusty-slr already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing timtadh/rusty-slr against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/timtadh/rusty-slr:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] bad79987a8d0d0992f5ce3338477a2cb34e1a9bc416c55545ea9a5a70d9ddd47
[INFO] running `"docker" "start" "-a" "bad79987a8d0d0992f5ce3338477a2cb34e1a9bc416c55545ea9a5a70d9ddd47"`
[INFO] [stderr]    Compiling slr v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] error: expected type, found `|`
[INFO] [stderr]    --> src/gram_parser.rs:135:50
[INFO] [stderr]     |
[INFO] [stderr] 135 |     fn epsilon<T, E>(&self, i : uint, n : T, f : |uint| -> Result<(uint,T),E>) -> Result<(uint,T),E> {
[INFO] [stderr]     |                                                  ^
[INFO] [stderr] 
[INFO] [stderr] error: macros that expand to items must be delimited with braces or followed by a semicolon
[INFO] [stderr]   --> src/main.rs:23:17
[INFO] [stderr]    |
[INFO] [stderr] 23 |   macro_rules! log(($fmt:expr$(, $msg:expr)*) => {
[INFO] [stderr]    |  _________________^
[INFO] [stderr] 24 | |     (writeln![io::stderr(), $fmt $(, $msg)*]).ok().expect("log failed")
[INFO] [stderr] 25 | | })
[INFO] [stderr]    | |__^
[INFO] [stderr] help: change the delimiters to curly braces
[INFO] [stderr]    |
[INFO] [stderr] 23 | macro_rules! log {($fmt:expr$(, $msg:expr)*) => {
[INFO] [stderr] 24 |     (writeln![io::stderr(), $fmt $(, $msg)*]).ok().expect("log failed")
[INFO] [stderr] 25 | }}
[INFO] [stderr]    |
[INFO] [stderr] help: add a semicolon
[INFO] [stderr]    |
[INFO] [stderr] 25 | });
[INFO] [stderr]    |   ^
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `collections`
[INFO] [stderr]  --> src/gram_parser.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | extern crate collections;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: Could not compile `slr`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "bad79987a8d0d0992f5ce3338477a2cb34e1a9bc416c55545ea9a5a70d9ddd47"`
[INFO] running `"docker" "rm" "-f" "bad79987a8d0d0992f5ce3338477a2cb34e1a9bc416c55545ea9a5a70d9ddd47"`
[INFO] [stdout] bad79987a8d0d0992f5ce3338477a2cb34e1a9bc416c55545ea9a5a70d9ddd47