[INFO] cloning repository https://github.com/AndreiCravtov/ferrous-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AndreiCravtov/ferrous-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndreiCravtov%2Fferrous-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndreiCravtov%2Fferrous-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6fe02ebb581f830c5454b8124a6a575f072631f1
[INFO] documenting AndreiCravtov/ferrous-lang against beta-2025-10-28 for beta-1.92-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndreiCravtov%2Fferrous-lang" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/AndreiCravtov/ferrous-lang
[INFO] finished tweaking git repo https://github.com/AndreiCravtov/ferrous-lang
[INFO] tweaked toml for git repo https://github.com/AndreiCravtov/ferrous-lang written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AndreiCravtov/ferrous-lang on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AndreiCravtov/ferrous-lang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 196a8686212f914c53dc14bd53be8a7c04c69309c58aeb3780272f8761ead461
[INFO] running `Command { std: "docker" "start" "-a" "196a8686212f914c53dc14bd53be8a7c04c69309c58aeb3780272f8761ead461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "196a8686212f914c53dc14bd53be8a7c04c69309c58aeb3780272f8761ead461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "196a8686212f914c53dc14bd53be8a7c04c69309c58aeb3780272f8761ead461", kill_on_drop: false }`
[INFO] [stdout] 196a8686212f914c53dc14bd53be8a7c04c69309c58aeb3780272f8761ead461
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7579d497508eb1fd40861b6ddb1e27860a94709cc1c0659bb692c9394dcf7380
[INFO] running `Command { std: "docker" "start" "-a" "7579d497508eb1fd40861b6ddb1e27860a94709cc1c0659bb692c9394dcf7380", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rustversion v1.0.20
[INFO] [stderr]    Compiling prettyplease v0.2.31
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]     Checking foldhash v0.1.5
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking smallvec v1.14.0
[INFO] [stderr]     Checking equivalent v1.0.2
[INFO] [stderr]     Checking allocator-api2 v0.2.21
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking once_cell v1.21.1
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling psm v0.1.25
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking hashbrown v0.15.2
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling stacker v0.1.20
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking bitflags v2.9.0
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]    Compiling chumsky v1.0.0-alpha.8 (https://github.com/zesterer/chumsky?rev=d12869a#d12869af)
[INFO] [stderr]     Checking recursion v0.5.2
[INFO] [stderr]     Checking yansi v1.0.1
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking unicode-segmentation v1.12.0
[INFO] [stderr]     Checking dashmap v5.5.3
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]     Checking ariadne v0.5.1
[INFO] [stderr]     Checking itertools v0.14.0
[INFO] [stderr]     Checking parse_int v0.6.0
[INFO] [stderr]     Checking generativity v1.1.0
[INFO] [stderr]     Checking utf8parse v0.2.2
[INFO] [stderr]     Checking anstyle-parse v0.2.6
[INFO] [stderr]     Checking anstyle v1.0.10
[INFO] [stderr]     Checking internment v0.8.6
[INFO] [stderr]     Checking anstyle-query v1.1.2
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.1
[INFO] [stderr]     Checking colorchoice v1.0.3
[INFO] [stderr]     Checking clap_lex v0.7.4
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking anstream v0.6.18
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking clap_builder v4.5.32
[INFO] [stderr]     Checking regex-automata v0.3.9
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]    Compiling darling_core v0.20.10
[INFO] [stderr]    Compiling extend v1.2.0
[INFO] [stderr]    Compiling derive_more-impl v2.0.1
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.3
[INFO] [stderr]    Compiling delegate v0.13.2
[INFO] [stderr]    Compiling clap_derive v4.5.32
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/chumsky-f75fa12f276e2bbf/d12869a/src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     feature(never_type, fn_traits, tuple_trait, unboxed_closures)
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking derive_more v2.0.1
[INFO] [stderr]    Compiling darling_macro v0.20.10
[INFO] [stderr]    Compiling darling v0.20.10
[INFO] [stderr]    Compiling fn_pipe_proc v0.1.0 (/opt/rustwide/workdir/util/fn_pipe/proc)
[INFO] [stderr]    Compiling bon-macros v3.5.1
[INFO] [stderr]     Checking clap v4.5.32
[INFO] [stderr]     Checking fn_pipe v0.1.0 (/opt/rustwide/workdir/util/fn_pipe)
[INFO] [stderr]  Documenting fn_pipe v0.1.0 (/opt/rustwide/workdir/util/fn_pipe)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> util/fn_pipe/src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(tuple_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> util/fn_pipe/src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(unboxed_closures)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> util/fn_pipe/src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(fn_traits)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> util/fn_pipe/src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(unsized_fn_params)] // this is fine because I am PURELY wrapping around existing `Fn*` traits
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> util/fn_pipe/src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(tuple_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> util/fn_pipe/src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(unboxed_closures)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> util/fn_pipe/src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(fn_traits)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> util/fn_pipe/src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(unsized_fn_params)] // this is fine because I am PURELY wrapping around existing `Fn*` traits
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  Documenting fn_pipe_proc v0.1.0 (/opt/rustwide/workdir/util/fn_pipe/proc)
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `fn_pipe`
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fn_pipe` (lib) due to 4 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chumsky` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "7579d497508eb1fd40861b6ddb1e27860a94709cc1c0659bb692c9394dcf7380", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7579d497508eb1fd40861b6ddb1e27860a94709cc1c0659bb692c9394dcf7380", kill_on_drop: false }`
[INFO] [stdout] 7579d497508eb1fd40861b6ddb1e27860a94709cc1c0659bb692c9394dcf7380
