[INFO] updating cached repository https://github.com/redox-os/bootloader-efi
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 49eea21eddc70d856f1854a96486adb7678bcfcc
[INFO] checking redox-os/bootloader-efi against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredox-os%2Fbootloader-efi" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/redox-os/bootloader-efi on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/redox-os/bootloader-efi
[INFO] finished tweaking git repo https://github.com/redox-os/bootloader-efi
[INFO] tweaked toml for git repo https://github.com/redox-os/bootloader-efi written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/redox-os/bootloader-efi already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 66310736b86d9e5e7220bcdddda6549833823be277cc5edbbe31fbbf46ef651d
[INFO] running `"docker" "start" "-a" "66310736b86d9e5e7220bcdddda6549833823be277cc5edbbe31fbbf46ef651d"`
[INFO] [stderr]    Compiling x86 v0.18.1
[INFO] [stderr]     Checking scroll v0.8.0
[INFO] [stderr]     Checking orbclient v0.3.21 (https://gitlab.redox-os.org/redox-os/orbclient.git?branch=no_std#d746b90d)
[INFO] [stderr]     Checking redox_uefi_std v0.1.0
[INFO] [stderr]    Compiling raw-cpuid v6.1.0
[INFO] [stderr] error[E0432]: unresolved import `crate::slice::SliceConcatExt`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/redox_uefi_std-0.1.0/src/prelude.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub use crate::slice::SliceConcatExt;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `SliceConcatExt` in `slice`
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute macro `global_allocator` in this scope
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/redox_uefi_std-0.1.0/src/lib.rs:99:3
[INFO] [stderr]    |
[INFO] [stderr] 99 | #[global_allocator]
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `redox_uefi_std`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "66310736b86d9e5e7220bcdddda6549833823be277cc5edbbe31fbbf46ef651d"`
[INFO] running `"docker" "rm" "-f" "66310736b86d9e5e7220bcdddda6549833823be277cc5edbbe31fbbf46ef651d"`
[INFO] [stdout] 66310736b86d9e5e7220bcdddda6549833823be277cc5edbbe31fbbf46ef651d