[INFO] updating cached repository SnowFlakeOS/uefi
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/SnowFlakeOS/uefi
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/SnowFlakeOS/uefi" "work/ex/beta-1.38-1/sources/1.37.0/gh/SnowFlakeOS/uefi"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/SnowFlakeOS/uefi'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/SnowFlakeOS/uefi" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/SnowFlakeOS/uefi"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/SnowFlakeOS/uefi'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4138cce94b13c3cbb318ceeeb2256a51e219f2b2
[INFO] sha for GitHub repo SnowFlakeOS/uefi: 4138cce94b13c3cbb318ceeeb2256a51e219f2b2
[INFO] validating manifest of SnowFlakeOS/uefi 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 SnowFlakeOS/uefi 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 SnowFlakeOS/uefi
[INFO] finished frobbing SnowFlakeOS/uefi
[INFO] frobbed toml for SnowFlakeOS/uefi written to work/ex/beta-1.38-1/sources/1.37.0/gh/SnowFlakeOS/uefi/Cargo.toml
[INFO] started frobbing SnowFlakeOS/uefi
[INFO] finished frobbing SnowFlakeOS/uefi
[INFO] frobbed toml for SnowFlakeOS/uefi written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/SnowFlakeOS/uefi/Cargo.toml
[INFO] crate SnowFlakeOS/uefi 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 SnowFlakeOS/uefi 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/SnowFlakeOS/uefi:/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] a731a645f3ac18e6dac090fa1a3a079bfbe55fdf85bb967c15fb91911bf6dd1e
[INFO] running `"docker" "start" "-a" "a731a645f3ac18e6dac090fa1a3a079bfbe55fdf85bb967c15fb91911bf6dd1e"`
[INFO] [stderr] warning: unused manifest key: package.author
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling uefi v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | #![feature(unique)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | #![feature(try_trait)]    // Makes Status a little easier to use
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> src/lib.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | #![feature(ptr_internals)]    // rawptr as_ref
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[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 `uefi`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a731a645f3ac18e6dac090fa1a3a079bfbe55fdf85bb967c15fb91911bf6dd1e"`
[INFO] running `"docker" "rm" "-f" "a731a645f3ac18e6dac090fa1a3a079bfbe55fdf85bb967c15fb91911bf6dd1e"`
[INFO] [stdout] a731a645f3ac18e6dac090fa1a3a079bfbe55fdf85bb967c15fb91911bf6dd1e