[INFO] fetching crate fantasy-util 0.2.1...
[INFO] testing fantasy-util-0.2.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate fantasy-util 0.2.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate fantasy-util 0.2.1
[INFO] finished tweaking crates.io crate fantasy-util 0.2.1
[INFO] tweaked toml for crates.io crate fantasy-util 0.2.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fantasy-util 0.2.1 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] crate crates.io crate fantasy-util 0.2.1 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-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] a4fc2a99e16e59b613c8ca2ada555ec9f2258ef26e2145eea21a0a5def343f6a
[INFO] running `Command { std: "docker" "start" "-a" "a4fc2a99e16e59b613c8ca2ada555ec9f2258ef26e2145eea21a0a5def343f6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4fc2a99e16e59b613c8ca2ada555ec9f2258ef26e2145eea21a0a5def343f6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4fc2a99e16e59b613c8ca2ada555ec9f2258ef26e2145eea21a0a5def343f6a", kill_on_drop: false }`
[INFO] [stdout] a4fc2a99e16e59b613c8ca2ada555ec9f2258ef26e2145eea21a0a5def343f6a
[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] 4a27f0aab1a4790c08618208ea5a3cfcd532713ac1a1c9fce5e78fcc0cef37bc
[INFO] running `Command { std: "docker" "start" "-a" "4a27f0aab1a4790c08618208ea5a3cfcd532713ac1a1c9fce5e78fcc0cef37bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling fantasy-util v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `tokio`
[INFO] [stdout]  --> src/asyncio/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tokio::io::AsyncWrite;
[INFO] [stdout]   |     ^^^^^ use of unresolved module or unlinked crate `tokio`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `tokio`, use `cargo add tokio` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fantasy-util` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "4a27f0aab1a4790c08618208ea5a3cfcd532713ac1a1c9fce5e78fcc0cef37bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a27f0aab1a4790c08618208ea5a3cfcd532713ac1a1c9fce5e78fcc0cef37bc", kill_on_drop: false }`
[INFO] [stdout] 4a27f0aab1a4790c08618208ea5a3cfcd532713ac1a1c9fce5e78fcc0cef37bc