[INFO] fetching crate utf8-rune 0.0.2...
[INFO] testing utf8-rune-0.0.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate utf8-rune 0.0.2 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate utf8-rune 0.0.2
[INFO] finished tweaking crates.io crate utf8-rune 0.0.2
[INFO] tweaked toml for crates.io crate utf8-rune 0.0.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate utf8-rune 0.0.2 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 utf8-rune 0.0.2 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 7ef6fabf4023a20b2854edbca660f2d8263aea09823828e480a1b32174dc0498
[INFO] running `Command { std: "docker" "start" "-a" "7ef6fabf4023a20b2854edbca660f2d8263aea09823828e480a1b32174dc0498", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ef6fabf4023a20b2854edbca660f2d8263aea09823828e480a1b32174dc0498", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ef6fabf4023a20b2854edbca660f2d8263aea09823828e480a1b32174dc0498", kill_on_drop: false }`
[INFO] [stdout] 7ef6fabf4023a20b2854edbca660f2d8263aea09823828e480a1b32174dc0498
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b017034d9c5e9b5958164f933c30d2e1ec2530961f3fc6d41bcdf033e568d898
[INFO] running `Command { std: "docker" "start" "-a" "b017034d9c5e9b5958164f933c30d2e1ec2530961f3fc6d41bcdf033e568d898", kill_on_drop: false }`
[INFO] [stderr]    Compiling utf8-rune v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "b017034d9c5e9b5958164f933c30d2e1ec2530961f3fc6d41bcdf033e568d898", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b017034d9c5e9b5958164f933c30d2e1ec2530961f3fc6d41bcdf033e568d898", kill_on_drop: false }`
[INFO] [stdout] b017034d9c5e9b5958164f933c30d2e1ec2530961f3fc6d41bcdf033e568d898
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c86883244fc7338ce11340103aae0edb4fa2258a9698977ea86bbd84bc4a27d
[INFO] running `Command { std: "docker" "start" "-a" "8c86883244fc7338ce11340103aae0edb4fa2258a9698977ea86bbd84bc4a27d", kill_on_drop: false }`
[INFO] [stderr]    Compiling debug-et-diagnostics v0.1.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/debug-et-diagnostics-0.1.2/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(intra_doc_pointers)]
[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 `debug-et-diagnostics` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "8c86883244fc7338ce11340103aae0edb4fa2258a9698977ea86bbd84bc4a27d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c86883244fc7338ce11340103aae0edb4fa2258a9698977ea86bbd84bc4a27d", kill_on_drop: false }`
[INFO] [stdout] 8c86883244fc7338ce11340103aae0edb4fa2258a9698977ea86bbd84bc4a27d