[INFO] updating cached repository DCubix/engine-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/DCubix/engine-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/DCubix/engine-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/DCubix/engine-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/DCubix/engine-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/DCubix/engine-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DCubix/engine-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DCubix/engine-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] da7b62780292939054f377159bedbe76b1b31f41
[INFO] sha for GitHub repo DCubix/engine-rs: da7b62780292939054f377159bedbe76b1b31f41
[INFO] validating manifest of DCubix/engine-rs 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 DCubix/engine-rs 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 DCubix/engine-rs
[INFO] finished frobbing DCubix/engine-rs
[INFO] frobbed toml for DCubix/engine-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/DCubix/engine-rs/Cargo.toml
[INFO] started frobbing DCubix/engine-rs
[INFO] finished frobbing DCubix/engine-rs
[INFO] frobbed toml for DCubix/engine-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DCubix/engine-rs/Cargo.toml
[INFO] crate DCubix/engine-rs 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 DCubix/engine-rs 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/DCubix/engine-rs:/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] 3aa2430c7e209a368ec5bb352b1c2d8513a71e2fc27fa90d68815b5e8555e411
[INFO] running `"docker" "start" "-a" "3aa2430c7e209a368ec5bb352b1c2d8513a71e2fc27fa90d68815b5e8555e411"`
[INFO] [stderr]    Compiling engine-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(specialization)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(ord_max_min)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(ascii_ctype)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(link_args)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #![feature(const_fn)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | #![feature(splice)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]    --> src/core/event.rs:208:7
[INFO] [stderr]     |
[INFO] [stderr] 208 |         use std::ascii::AsciiExt;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::convert::Into`
[INFO] [stderr]  --> src/gfx/geom.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::convert::Into;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `math::vec::*`
[INFO] [stderr]  --> src/gfx/geom.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use math::vec::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::util::GLResource`
[INFO] [stderr]  --> src/gfx/geom.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use core::util::GLResource;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
[INFO] [stderr]    --> src/core/event.rs:208:7
[INFO] [stderr]     |
[INFO] [stderr] 208 |         use std::ascii::AsciiExt;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `is_ascii_punctuation` found for type `&str` in the current scope
[INFO] [stderr]    --> src/core/event.rs:258:11
[INFO] [stderr]     |
[INFO] [stderr] 258 |             x if x.is_ascii_punctuation() => {
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 7 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `engine-rs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3aa2430c7e209a368ec5bb352b1c2d8513a71e2fc27fa90d68815b5e8555e411"`
[INFO] running `"docker" "rm" "-f" "3aa2430c7e209a368ec5bb352b1c2d8513a71e2fc27fa90d68815b5e8555e411"`
[INFO] [stdout] 3aa2430c7e209a368ec5bb352b1c2d8513a71e2fc27fa90d68815b5e8555e411