[INFO] fetching crate rs-category 0.1.0...
[INFO] testing rs-category-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate rs-category 0.1.0 into /workspace/builds/worker-26/source
[INFO] validating manifest of crates.io crate rs-category 0.1.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-26/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce9533943837d1abc8c495eb59bf3197c4b8a8cab57a3175d873128a4bf3e063
[INFO] running `Command { std: "docker" "start" "-a" "ce9533943837d1abc8c495eb59bf3197c4b8a8cab57a3175d873128a4bf3e063", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce9533943837d1abc8c495eb59bf3197c4b8a8cab57a3175d873128a4bf3e063", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce9533943837d1abc8c495eb59bf3197c4b8a8cab57a3175d873128a4bf3e063", kill_on_drop: false }`
[INFO] [stdout] ce9533943837d1abc8c495eb59bf3197c4b8a8cab57a3175d873128a4bf3e063
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1f47ab083976b8686ced8aedcb0831ce2d3c657ad5abb2361d6241112891ec4
[INFO] running `Command { std: "docker" "start" "-a" "b1f47ab083976b8686ced8aedcb0831ce2d3c657ad5abb2361d6241112891ec4", 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 stable 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 stable 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] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rs-category` due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "b1f47ab083976b8686ced8aedcb0831ce2d3c657ad5abb2361d6241112891ec4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1f47ab083976b8686ced8aedcb0831ce2d3c657ad5abb2361d6241112891ec4", kill_on_drop: false }`
[INFO] [stdout] b1f47ab083976b8686ced8aedcb0831ce2d3c657ad5abb2361d6241112891ec4