[INFO] fetching crate filterway 0.1.0...
[INFO] testing filterway-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate filterway 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate filterway 0.1.0
[INFO] finished tweaking crates.io crate filterway 0.1.0
[INFO] tweaked toml for crates.io crate filterway 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate filterway 0.1.0 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] crate crates.io crate filterway 0.1.0 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] a64c1bd51e7fdf220a9c0b7d37703ef26d0464e010a1b8df7f05dbaa3bc26b6d
[INFO] running `Command { std: "docker" "start" "-a" "a64c1bd51e7fdf220a9c0b7d37703ef26d0464e010a1b8df7f05dbaa3bc26b6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a64c1bd51e7fdf220a9c0b7d37703ef26d0464e010a1b8df7f05dbaa3bc26b6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a64c1bd51e7fdf220a9c0b7d37703ef26d0464e010a1b8df7f05dbaa3bc26b6d", kill_on_drop: false }`
[INFO] [stdout] a64c1bd51e7fdf220a9c0b7d37703ef26d0464e010a1b8df7f05dbaa3bc26b6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] a2baf99377e94fc275590787686e86953ff33bf19eb65d3629019fc9d62cc54d
[INFO] running `Command { std: "docker" "start" "-a" "a2baf99377e94fc275590787686e86953ff33bf19eb65d3629019fc9d62cc54d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.81
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling serde v1.0.200
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling unicode-width v0.1.12
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling rustversion v1.0.15
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling thiserror v1.0.59
[INFO] [stderr]    Compiling strum v0.26.2
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling winnow v0.6.7
[INFO] [stderr]    Compiling bitflags v2.5.0
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling unicode-linebreak v0.1.5
[INFO] [stderr]    Compiling iana-time-zone v0.1.60
[INFO] [stderr]    Compiling serde_json v1.0.116
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling smawk v0.3.2
[INFO] [stderr]    Compiling ryu v1.0.17
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]    Compiling unicode-id v0.3.4
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling markdown v1.0.0-alpha.17
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling defer v0.2.1
[INFO] [stderr]    Compiling convert_case v0.6.0
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling litrs v0.2.3
[INFO] [stderr]    Compiling syn v2.0.60
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]    Compiling vte v0.10.1
[INFO] [stderr]    Compiling chrono v0.4.38
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling console v0.15.8
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling parking_lot v0.12.2
[INFO] [stderr]    Compiling ansitok v0.2.0
[INFO] [stderr]    Compiling crossterm v0.27.0
[INFO] [stderr]    Compiling serde_derive v1.0.200
[INFO] [stderr]    Compiling strum_macros v0.26.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.59
[INFO] [stderr]    Compiling ansi-str v0.8.0
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling terminal_size v0.2.6
[INFO] [stderr]    Compiling textwrap v0.16.1
[INFO] [stderr]    Compiling loga v0.1.7
[INFO] [stderr]    Compiling comfy-table v7.1.1
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]    Compiling aargvark_proc_macros v0.0.3
[INFO] [stderr]    Compiling structre_proc_macros v0.0.3
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling structre v0.0.4
[INFO] [stderr]    Compiling aargvark v0.0.8
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling serde_spanned v0.6.5
[INFO] [stderr]    Compiling toml_edit v0.22.12
[INFO] [stderr]    Compiling toml v0.8.12
[INFO] [stderr]    Compiling cargo-manifest v0.14.0
[INFO] [stderr]    Compiling genemichaels v0.2.3
[INFO] [stderr]    Compiling aargvark_proc_macros v0.0.7
[INFO] [stderr]    Compiling aargvark v0.2.1
[INFO] [stderr]    Compiling filterway v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(unix_socket_ancillary_data)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `filterway` (bin "filterway") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "a2baf99377e94fc275590787686e86953ff33bf19eb65d3629019fc9d62cc54d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2baf99377e94fc275590787686e86953ff33bf19eb65d3629019fc9d62cc54d", kill_on_drop: false }`
[INFO] [stdout] a2baf99377e94fc275590787686e86953ff33bf19eb65d3629019fc9d62cc54d
