[INFO] updating cached repository mehcode/xchip
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mehcode/xchip
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mehcode/xchip" "work/ex/beta-1.38-1/sources/1.37.0/gh/mehcode/xchip"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mehcode/xchip'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mehcode/xchip" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mehcode/xchip"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mehcode/xchip'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 11e15a41e36a96a570146448741c14c4de6692e8
[INFO] sha for GitHub repo mehcode/xchip: 11e15a41e36a96a570146448741c14c4de6692e8
[INFO] validating manifest of mehcode/xchip 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 mehcode/xchip 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 mehcode/xchip
[INFO] finished frobbing mehcode/xchip
[INFO] frobbed toml for mehcode/xchip written to work/ex/beta-1.38-1/sources/1.37.0/gh/mehcode/xchip/Cargo.toml
[INFO] started frobbing mehcode/xchip
[INFO] finished frobbing mehcode/xchip
[INFO] frobbed toml for mehcode/xchip written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mehcode/xchip/Cargo.toml
[INFO] crate mehcode/xchip 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 mehcode/xchip 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-0/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/mehcode/xchip:/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] 829ebc72e173d3e1e2a1062d659a49fa01ed6fe75a59f323cab0a4003f048976
[INFO] running `"docker" "start" "-a" "829ebc72e173d3e1e2a1062d659a49fa01ed6fe75a59f323cab0a4003f048976"`
[INFO] [stderr]    Compiling cmake v0.1.20
[INFO] [stderr]    Compiling axal v0.1.0 (https://github.com/mehcode/axal.git#d213c9f7)
[INFO] [stderr]    Compiling xchip v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unknown lint: `needless_range_loop`
[INFO] [stderr]   --> src/mmu.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |     #[allow(needless_range_loop, unknown_lints)]
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[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(type_ascription)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::vec::Vec`
[INFO] [stderr]  --> src/chip_8.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::vec::Vec;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super_chip`
[INFO] [stderr]  --> src/interpreter.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use super_chip;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/interpreter.rs:168:25
[INFO] [stderr]     |
[INFO] [stderr] 168 |     runtime: Option<Box<Runtime>>,
[INFO] [stderr]     |                         ^^^^^^^ help: use `dyn`: `dyn Runtime`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` 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 `xchip`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "829ebc72e173d3e1e2a1062d659a49fa01ed6fe75a59f323cab0a4003f048976"`
[INFO] running `"docker" "rm" "-f" "829ebc72e173d3e1e2a1062d659a49fa01ed6fe75a59f323cab0a4003f048976"`
[INFO] [stdout] 829ebc72e173d3e1e2a1062d659a49fa01ed6fe75a59f323cab0a4003f048976