[INFO] updating cached repository Adrijaned/OS
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Adrijaned/OS
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Adrijaned/OS" "work/ex/beta-1.37-6/sources/1.36.0/gh/Adrijaned/OS"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Adrijaned/OS'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Adrijaned/OS" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Adrijaned/OS"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Adrijaned/OS'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1c9e7760b743b0b1c57574409088f5c76e3714c3
[INFO] sha for GitHub repo Adrijaned/OS: 1c9e7760b743b0b1c57574409088f5c76e3714c3
[INFO] validating manifest of Adrijaned/OS on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Adrijaned/OS on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Adrijaned/OS
[INFO] finished frobbing Adrijaned/OS
[INFO] frobbed toml for Adrijaned/OS written to work/ex/beta-1.37-6/sources/1.36.0/gh/Adrijaned/OS/Cargo.toml
[INFO] started frobbing Adrijaned/OS
[INFO] finished frobbing Adrijaned/OS
[INFO] frobbed toml for Adrijaned/OS written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Adrijaned/OS/Cargo.toml
[INFO] crate Adrijaned/OS already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Adrijaned/OS against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Adrijaned/OS:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 6429906c7d2f8b483b7a8df04b4eaf87f138e0444a49c7c9f9dbd803f9cd1c61
[INFO] running `"docker" "start" "-a" "6429906c7d2f8b483b7a8df04b4eaf87f138e0444a49c7c9f9dbd803f9cd1c61"`
[INFO] [stderr]    Compiling adrij_os_rust 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(lang_items)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(asm)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(naked_functions)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/io/mod.rs:62:15
[INFO] [stderr]    |
[INFO] [stderr] 62 |             33...126 => {
[INFO] [stderr]    |               ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(ellipsis_inclusive_range_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `RAlt`
[INFO] [stderr]  --> src/interrupts/keyboard/keymap.rs:2:93
[INFO] [stderr]   |
[INFO] [stderr] 2 | use interrupts::keyboard::keymap::ModifierKeyValues::{Escape, Enter, LCtrl, LShift, RShift, RAlt, LAlt};
[INFO] [stderr]   |                                                                                             ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `adrij_os_rust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6429906c7d2f8b483b7a8df04b4eaf87f138e0444a49c7c9f9dbd803f9cd1c61"`
[INFO] running `"docker" "rm" "-f" "6429906c7d2f8b483b7a8df04b4eaf87f138e0444a49c7c9f9dbd803f9cd1c61"`
[INFO] [stdout] 6429906c7d2f8b483b7a8df04b4eaf87f138e0444a49c7c9f9dbd803f9cd1c61