[INFO] fetching crate fun 0.0.1...
[INFO] testing fun-0.0.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate fun 0.0.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate fun 0.0.1
[INFO] finished tweaking crates.io crate fun 0.0.1
[INFO] tweaked toml for crates.io crate fun 0.0.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fun 0.0.1 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5148198b05dc95da3d9e9959d4036559e107343519771a2bba45fafe790d2425
[INFO] running `Command { std: "docker" "start" "-a" "5148198b05dc95da3d9e9959d4036559e107343519771a2bba45fafe790d2425", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5148198b05dc95da3d9e9959d4036559e107343519771a2bba45fafe790d2425", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5148198b05dc95da3d9e9959d4036559e107343519771a2bba45fafe790d2425", kill_on_drop: false }`
[INFO] [stdout] 5148198b05dc95da3d9e9959d4036559e107343519771a2bba45fafe790d2425
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] edd4d486b979ca82df63c0c5b87a9578ab9d768f1ab80dfc02688632231b9fcf
[INFO] running `Command { std: "docker" "start" "-a" "edd4d486b979ca82df63c0c5b87a9578ab9d768f1ab80dfc02688632231b9fcf", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling fun v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected parameter name, found `:`
[INFO] [stdout]   --> src/data/either.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     elim(|&: a| { Ok(a) },
[INFO] [stdout]    |            ^ expected parameter name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected parameter name, found `:`
[INFO] [stdout]   --> src/data/maybe.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |          |&: a| { Option::Some(a) },
[INFO] [stdout]    |            ^ expected parameter name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Rand` in this scope
[INFO] [stdout]  --> src/data/either.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[derive(Rand)]
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Show` in this scope
[INFO] [stdout]   --> src/data/either.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[derive(Show)]
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Rand` in this scope
[INFO] [stdout]  --> src/data/maybe.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[derive(Rand)]
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Show` in this scope
[INFO] [stdout]   --> src/data/maybe.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[derive(Show)]
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Show` in this scope
[INFO] [stdout]  --> src/data/void.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[derive(Show)]
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0403]: the name `A` is already used for a generic parameter in this item's generic parameters
[INFO] [stdout]   --> src/data/either.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl<A, B> Either<A, B> {
[INFO] [stdout]    |      - first use of `A`
[INFO] [stdout] 28 |     #[inline]
[INFO] [stdout] 29 |     pub fn elim<A, B, R, FL, FR>(inl: FL, inr: FR, m: Either<A, B>) -> R where
[INFO] [stdout]    |                 ^ already used
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0403]: the name `B` is already used for a generic parameter in this item's generic parameters
[INFO] [stdout]   --> src/data/either.rs:29:20
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl<A, B> Either<A, B> {
[INFO] [stdout]    |         - first use of `B`
[INFO] [stdout] 28 |     #[inline]
[INFO] [stdout] 29 |     pub fn elim<A, B, R, FL, FR>(inl: FL, inr: FR, m: Either<A, B>) -> R where
[INFO] [stdout]    |                    ^ already used
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0403]: the name `A` is already used for a generic parameter in this item's generic parameters
[INFO] [stdout]   --> src/data/maybe.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl<A> Maybe<A> {
[INFO] [stdout]    |      - first use of `A`
[INFO] [stdout] 25 |     #[inline]
[INFO] [stdout] 26 |     pub fn elim<A, R, F: Fn(A) -> R>(none: R, some: F, m: Maybe<A>) -> R {
[INFO] [stdout]    |                 ^ already used
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(unboxed_closures)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `core_intrinsics`: intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library
[INFO] [stdout]   --> src/data/void.rs:14:14
[INFO] [stdout]    |
[INFO] [stdout] 14 |     unsafe { ::std::intrinsics::unreachable() }
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `fn_traits`
[INFO] [stdout]  --> src/data/pair.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 |     pair.call(x)
[INFO] [stdout]   |          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0403, E0554, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0403`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fun` (lib) due to 13 previous errors
[INFO] running `Command { std: "docker" "inspect" "edd4d486b979ca82df63c0c5b87a9578ab9d768f1ab80dfc02688632231b9fcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edd4d486b979ca82df63c0c5b87a9578ab9d768f1ab80dfc02688632231b9fcf", kill_on_drop: false }`
[INFO] [stdout] edd4d486b979ca82df63c0c5b87a9578ab9d768f1ab80dfc02688632231b9fcf