[INFO] updating cached repository qqwa/amethyst_parser_syn
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/qqwa/amethyst_parser_syn
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/qqwa/amethyst_parser_syn" "work/ex/beta-1.38-1/sources/1.37.0/gh/qqwa/amethyst_parser_syn"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/qqwa/amethyst_parser_syn'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/qqwa/amethyst_parser_syn" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/qqwa/amethyst_parser_syn"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/qqwa/amethyst_parser_syn'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 42bc1e0a06284ae8abac68beb07990fe09f84a38
[INFO] sha for GitHub repo qqwa/amethyst_parser_syn: 42bc1e0a06284ae8abac68beb07990fe09f84a38
[INFO] validating manifest of qqwa/amethyst_parser_syn 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 qqwa/amethyst_parser_syn 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 qqwa/amethyst_parser_syn
[INFO] finished frobbing qqwa/amethyst_parser_syn
[INFO] frobbed toml for qqwa/amethyst_parser_syn written to work/ex/beta-1.38-1/sources/1.37.0/gh/qqwa/amethyst_parser_syn/Cargo.toml
[INFO] started frobbing qqwa/amethyst_parser_syn
[INFO] finished frobbing qqwa/amethyst_parser_syn
[INFO] frobbed toml for qqwa/amethyst_parser_syn written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/qqwa/amethyst_parser_syn/Cargo.toml
[INFO] crate qqwa/amethyst_parser_syn 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 qqwa/amethyst_parser_syn against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/qqwa/amethyst_parser_syn:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] aab5e22d95bb8fcac90313b59e1609f46a02ba1a3e65640cbbe218f97e11fa28
[INFO] running `"docker" "start" "-a" "aab5e22d95bb8fcac90313b59e1609f46a02ba1a3e65640cbbe218f97e11fa28"`
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]    Compiling amethyst_parser_syn v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(box_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left': superseded by `trim_start`
[INFO] [stderr]    --> src/lib.rs:121:70
[INFO] [stderr]     |
[INFO] [stderr] 121 |                     doc_string = doc_string[1..doc_string.len() - 1].trim_left().to_string();
[INFO] [stderr]     |                                                                      ^^^^^^^^^ help: replace the use of the deprecated item: `trim_start`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[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 `amethyst_parser_syn`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "aab5e22d95bb8fcac90313b59e1609f46a02ba1a3e65640cbbe218f97e11fa28"`
[INFO] running `"docker" "rm" "-f" "aab5e22d95bb8fcac90313b59e1609f46a02ba1a3e65640cbbe218f97e11fa28"`
[INFO] [stdout] aab5e22d95bb8fcac90313b59e1609f46a02ba1a3e65640cbbe218f97e11fa28