[INFO] updating cached repository reynoldsbd/bootloader-uefi
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/reynoldsbd/bootloader-uefi
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/reynoldsbd/bootloader-uefi" "work/ex/beta-1.38-1/sources/1.37.0/gh/reynoldsbd/bootloader-uefi"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/reynoldsbd/bootloader-uefi'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/reynoldsbd/bootloader-uefi" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/reynoldsbd/bootloader-uefi"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/reynoldsbd/bootloader-uefi'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f36b23b8be9791c3c858425139681a4c34be12d3
[INFO] sha for GitHub repo reynoldsbd/bootloader-uefi: f36b23b8be9791c3c858425139681a4c34be12d3
[INFO] validating manifest of reynoldsbd/bootloader-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 reynoldsbd/bootloader-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 reynoldsbd/bootloader-uefi
[INFO] finished frobbing reynoldsbd/bootloader-uefi
[INFO] frobbed toml for reynoldsbd/bootloader-uefi written to work/ex/beta-1.38-1/sources/1.37.0/gh/reynoldsbd/bootloader-uefi/Cargo.toml
[INFO] started frobbing reynoldsbd/bootloader-uefi
[INFO] finished frobbing reynoldsbd/bootloader-uefi
[INFO] frobbed toml for reynoldsbd/bootloader-uefi written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/reynoldsbd/bootloader-uefi/Cargo.toml
[INFO] crate reynoldsbd/bootloader-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 reynoldsbd/bootloader-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-4/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/reynoldsbd/bootloader-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] c6dadd24d65653b87a90112edfdfb771efa9b83fd6a85731c4abc49b4bcb5581
[INFO] running `"docker" "start" "-a" "c6dadd24d65653b87a90112edfdfb771efa9b83fd6a85731c4abc49b4bcb5581"`
[INFO] [stderr]    Compiling rlibc v1.0.0
[INFO] [stderr]    Compiling zero v0.1.2
[INFO] [stderr]    Compiling efi v0.1.0 (https://github.com/reynoldsbd/libefi#da66191e)
[INFO] [stderr]    Compiling xmas-elf v0.6.2
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/git/checkouts/libefi-a1730bf5197d851c/da66191/src/lib.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(const_fn, lang_items, ptr_internals)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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 `efi`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "c6dadd24d65653b87a90112edfdfb771efa9b83fd6a85731c4abc49b4bcb5581"`
[INFO] running `"docker" "rm" "-f" "c6dadd24d65653b87a90112edfdfb771efa9b83fd6a85731c4abc49b4bcb5581"`
[INFO] [stdout] c6dadd24d65653b87a90112edfdfb771efa9b83fd6a85731c4abc49b4bcb5581