[INFO] fetching crate siphash 0.0.5...
[INFO] testing siphash-0.0.5 against 1.54.0 for beta-1.55-1
[INFO] extracting crate siphash 0.0.5 into /workspace/builds/worker-23/source
[INFO] validating manifest of crates.io crate siphash 0.0.5 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-23/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79066d48ef2311aab7b72781a17adc374a911fb7cc12704431ffb0caf3df4efe
[INFO] running `Command { std: "docker" "start" "-a" "79066d48ef2311aab7b72781a17adc374a911fb7cc12704431ffb0caf3df4efe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79066d48ef2311aab7b72781a17adc374a911fb7cc12704431ffb0caf3df4efe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79066d48ef2311aab7b72781a17adc374a911fb7cc12704431ffb0caf3df4efe", kill_on_drop: false }`
[INFO] [stdout] 79066d48ef2311aab7b72781a17adc374a911fb7cc12704431ffb0caf3df4efe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58f43645d50bd2ef250e6eee06c42f4ffef9a3a34778d34e48097be8a2ad7e88
[INFO] running `Command { std: "docker" "start" "-a" "58f43645d50bd2ef250e6eee06c42f4ffef9a3a34778d34e48097be8a2ad7e88", kill_on_drop: false }`
[INFO] [stderr]    Compiling siphash v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0422]: cannot find struct, variant or union type `Slice` in module `core::raw`
[INFO] [stdout]   --> src/lib.rs:56:34
[INFO] [stdout]    |
[INFO] [stdout] 56 |             transmute(core::raw::Slice {
[INFO] [stdout]    |                                  ^^^^^ not found in `core::raw`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(plugin, no_std, raw)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `no_std` has been stable since 1.6.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(not(test), feature(core_slice_ext))]
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0422, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0422`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `siphash`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "58f43645d50bd2ef250e6eee06c42f4ffef9a3a34778d34e48097be8a2ad7e88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58f43645d50bd2ef250e6eee06c42f4ffef9a3a34778d34e48097be8a2ad7e88", kill_on_drop: false }`
[INFO] [stdout] 58f43645d50bd2ef250e6eee06c42f4ffef9a3a34778d34e48097be8a2ad7e88
