[INFO] fetching crate rs-category 0.1.0...
[INFO] testing rs-category-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate rs-category 0.1.0 into /workspace/builds/worker-37/source
[INFO] validating manifest of crates.io crate rs-category 0.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rs-category 0.1.0
[INFO] finished tweaking crates.io crate rs-category 0.1.0
[INFO] tweaked toml for crates.io crate rs-category 0.1.0 written to /workspace/builds/worker-37/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc60635596b29725e02535c5b8fc9422e3dc51f17c0579a58f2004393c28aed9
[INFO] running `Command { std: "docker" "start" "-a" "bc60635596b29725e02535c5b8fc9422e3dc51f17c0579a58f2004393c28aed9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc60635596b29725e02535c5b8fc9422e3dc51f17c0579a58f2004393c28aed9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc60635596b29725e02535c5b8fc9422e3dc51f17c0579a58f2004393c28aed9", kill_on_drop: false }`
[INFO] [stdout] bc60635596b29725e02535c5b8fc9422e3dc51f17c0579a58f2004393c28aed9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19366ad4f739d8fefc8800b8462881edbd62c580fb34c6db554b27ec57520f21
[INFO] running `Command { std: "docker" "start" "-a" "19366ad4f739d8fefc8800b8462881edbd62c580fb34c6db554b27ec57520f21", kill_on_drop: false }`
[INFO] [stderr]    Compiling rs-category v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(generic_associated_types)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(non_ascii_idents)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `non_ascii_idents` has been stable since 1.53.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: The usage of Script Group `Greek` in this crate consists solely of mixed script confusables
[INFO] [stdout]   --> src/lib.rs:60:56
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub fn bind_once<A, B, F: Semimonad + EndofunctorOnce, Φ: FnOnce(A) -> F::H<B>>(f: Φ, a: F::H<A>) -> F::H<B> { F::join(F::map_once(f, a)...
[INFO] [stdout]    |                                                        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mixed_script_confusables)]` on by default
[INFO] [stdout]    = note: The usage includes 'Φ' (U+03A6).
[INFO] [stdout]    = note: Please recheck to make sure their usages are indeed what you want.
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rs-category` due to 3 previous errors; 1 warning emitted
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "19366ad4f739d8fefc8800b8462881edbd62c580fb34c6db554b27ec57520f21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19366ad4f739d8fefc8800b8462881edbd62c580fb34c6db554b27ec57520f21", kill_on_drop: false }`
[INFO] [stdout] 19366ad4f739d8fefc8800b8462881edbd62c580fb34c6db554b27ec57520f21