[INFO] fetching crate siphash 0.0.5...
[INFO] testing siphash-0.0.5 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate siphash 0.0.5 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate siphash 0.0.5 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate siphash 0.0.5
[INFO] finished tweaking crates.io crate siphash 0.0.5
[INFO] tweaked toml for crates.io crate siphash 0.0.5 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b4ba4566fb61f40b0cb49c0ac2b9df92c8582667e6868fcaf435e861735df62a
[INFO] running `"docker" "start" "-a" "b4ba4566fb61f40b0cb49c0ac2b9df92c8582667e6868fcaf435e861735df62a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling siphash v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0422]: cannot find struct, variant or union type `Slice` in module `core::raw`
[INFO] [stderr]   --> src/lib.rs:56:34
[INFO] [stderr]    |
[INFO] [stderr] 56 |             transmute(core::raw::Slice {
[INFO] [stderr]    |                                  ^^^^^ not found in `core::raw`
[INFO] [stderr] 
[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(plugin, no_std, raw)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:2:24
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![cfg_attr(not(test), feature(core_slice_ext))]
[INFO] [stderr]   |                        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0422, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0422`.
[INFO] [stderr] error: could not compile `siphash`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b4ba4566fb61f40b0cb49c0ac2b9df92c8582667e6868fcaf435e861735df62a"`
[INFO] running `"docker" "rm" "-f" "b4ba4566fb61f40b0cb49c0ac2b9df92c8582667e6868fcaf435e861735df62a"`
[INFO] [stdout] b4ba4566fb61f40b0cb49c0ac2b9df92c8582667e6868fcaf435e861735df62a