[INFO] crate wpilib-hal 0.1.1 is already in cache
[INFO] checking wpilib-hal-0.1.1 against nightly-2019-10-27 for pr-65897
[INFO] extracting crate wpilib-hal 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate wpilib-hal 0.1.1 on toolchain nightly-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+nightly-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate wpilib-hal 0.1.1
[INFO] finished tweaking crates.io crate wpilib-hal 0.1.1
[INFO] tweaked toml for crates.io crate wpilib-hal 0.1.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+nightly-2019-10-27" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+nightly-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-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" "+nightly-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 64af6e49061a56db0e64d6c40e15a5d14ea2b2f4f359fd9d0b72cd39e4da2b7b
[INFO] running `"docker" "start" "-a" "64af6e49061a56db0e64d6c40e15a5d14ea2b2f4f359fd9d0b72cd39e4da2b7b"`
[INFO] [stderr]    Compiling clang-sys v0.14.1
[INFO] [stderr]    Compiling syntex_errors v0.54.0
[INFO] [stderr]    Compiling syntex_syntax v0.54.0
[INFO] [stderr]    Compiling aster v0.38.0
[INFO] [stderr]    Compiling syntex v0.54.0
[INFO] [stderr]    Compiling quasi v0.29.0
[INFO] [stderr]    Compiling quasi_codegen v0.29.0
[INFO] [stderr]    Compiling bindgen v0.22.1
[INFO] [stderr]    Compiling wpilib-hal v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `std::slice::SliceConcatExt`
[INFO] [stderr]  --> build.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::slice::SliceConcatExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ no `SliceConcatExt` in `slice`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `wpilib-hal`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "64af6e49061a56db0e64d6c40e15a5d14ea2b2f4f359fd9d0b72cd39e4da2b7b"`
[INFO] running `"docker" "rm" "-f" "64af6e49061a56db0e64d6c40e15a5d14ea2b2f4f359fd9d0b72cd39e4da2b7b"`
[INFO] [stdout] 64af6e49061a56db0e64d6c40e15a5d14ea2b2f4f359fd9d0b72cd39e4da2b7b