[INFO] fetching crate minparser 0.10.0...
[INFO] testing minparser-0.10.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate minparser 0.10.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate minparser 0.10.0
[INFO] finished tweaking crates.io crate minparser 0.10.0
[INFO] tweaked toml for crates.io crate minparser 0.10.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate minparser 0.10.0 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 crates.io crate minparser 0.10.0 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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e31a3fec39235e99202ccb6c57f67020649fee338a120bd9be505f82b813e268
[INFO] running `Command { std: "docker" "start" "-a" "e31a3fec39235e99202ccb6c57f67020649fee338a120bd9be505f82b813e268", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e31a3fec39235e99202ccb6c57f67020649fee338a120bd9be505f82b813e268", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e31a3fec39235e99202ccb6c57f67020649fee338a120bd9be505f82b813e268", kill_on_drop: false }`
[INFO] [stdout] e31a3fec39235e99202ccb6c57f67020649fee338a120bd9be505f82b813e268
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 997531a61909f5a6724b8d653b9c46cd293065488254fb291ecd1d26c94105f3
[INFO] running `Command { std: "docker" "start" "-a" "997531a61909f5a6724b8d653b9c46cd293065488254fb291ecd1d26c94105f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling minparser v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.11s
[INFO] running `Command { std: "docker" "inspect" "997531a61909f5a6724b8d653b9c46cd293065488254fb291ecd1d26c94105f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "997531a61909f5a6724b8d653b9c46cd293065488254fb291ecd1d26c94105f3", kill_on_drop: false }`
[INFO] [stdout] 997531a61909f5a6724b8d653b9c46cd293065488254fb291ecd1d26c94105f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4a04ff7b461905b9d139aad96a2cec359233b0d81c60d7594536ebc5135fd72
[INFO] running `Command { std: "docker" "start" "-a" "f4a04ff7b461905b9d139aad96a2cec359233b0d81c60d7594536ebc5135fd72", kill_on_drop: false }`
[INFO] [stderr]    Compiling minparser v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:96:59
[INFO] [stdout]    |
[INFO] [stdout] 96 | #![cfg_attr(any(feature = "nightly-features", doc, test), feature(doc_cfg), feature(try_trait_v2), feature(try_trait_v2_residual))]
[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:96:77
[INFO] [stdout]    |
[INFO] [stdout] 96 | #![cfg_attr(any(feature = "nightly-features", doc, test), feature(doc_cfg), feature(try_trait_v2), feature(try_trait_v2_residual))]
[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:96:100
[INFO] [stdout]    |
[INFO] [stdout] 96 | #![cfg_attr(any(feature = "nightly-features", doc, test), feature(doc_cfg), feature(try_trait_v2), feature(try_trait_v2_residual))]
[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 `minparser` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "f4a04ff7b461905b9d139aad96a2cec359233b0d81c60d7594536ebc5135fd72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4a04ff7b461905b9d139aad96a2cec359233b0d81c60d7594536ebc5135fd72", kill_on_drop: false }`
[INFO] [stdout] f4a04ff7b461905b9d139aad96a2cec359233b0d81c60d7594536ebc5135fd72