[INFO] fetching crate stak-device 0.11.5...
[INFO] testing stak-device-0.11.5 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate stak-device 0.11.5 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate stak-device 0.11.5
[INFO] finished tweaking crates.io crate stak-device 0.11.5
[INFO] tweaked toml for crates.io crate stak-device 0.11.5 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stak-device 0.11.5 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 stak-device 0.11.5 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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 757437736ffc2af93617be0436cbf409626c7525f7369e6a62d80ad1b9a5d072
[INFO] running `Command { std: "docker" "start" "-a" "757437736ffc2af93617be0436cbf409626c7525f7369e6a62d80ad1b9a5d072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "757437736ffc2af93617be0436cbf409626c7525f7369e6a62d80ad1b9a5d072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "757437736ffc2af93617be0436cbf409626c7525f7369e6a62d80ad1b9a5d072", kill_on_drop: false }`
[INFO] [stdout] 757437736ffc2af93617be0436cbf409626c7525f7369e6a62d80ad1b9a5d072
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15997b364ab323077a8afd026317259c8091ef19419e08a290f25fcac0be85fd
[INFO] running `Command { std: "docker" "start" "-a" "15997b364ab323077a8afd026317259c8091ef19419e08a290f25fcac0be85fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-elif v0.6.5
[INFO] [stderr]    Compiling noop-executor v0.1.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling stak-util v0.11.5
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling winter-maybe-async v0.13.1
[INFO] [stderr]    Compiling stak-vm v0.11.5
[INFO] [stderr]    Compiling stak-device v0.11.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.37s
[INFO] running `Command { std: "docker" "inspect" "15997b364ab323077a8afd026317259c8091ef19419e08a290f25fcac0be85fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15997b364ab323077a8afd026317259c8091ef19419e08a290f25fcac0be85fd", kill_on_drop: false }`
[INFO] [stdout] 15997b364ab323077a8afd026317259c8091ef19419e08a290f25fcac0be85fd
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd590bf6451ffd6eb7d1aea2338f1a3efd214586c5c4cb16a62d3f28dc399ba5
[INFO] running `Command { std: "docker" "start" "-a" "bd590bf6451ffd6eb7d1aea2338f1a3efd214586c5c4cb16a62d3f28dc399ba5", kill_on_drop: false }`
[INFO] [stderr]    Compiling stak-device v0.11.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `stak_util`
[INFO] [stdout]   --> src/device/fixed_buffer.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     use stak_util::block_on;
[INFO] [stdout]    |         ^^^^^^^^^ use of unresolved module or unlinked crate `stak_util`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `stak_util`, use `cargo add stak_util` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `stak-device` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "bd590bf6451ffd6eb7d1aea2338f1a3efd214586c5c4cb16a62d3f28dc399ba5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd590bf6451ffd6eb7d1aea2338f1a3efd214586c5c4cb16a62d3f28dc399ba5", kill_on_drop: false }`
[INFO] [stdout] bd590bf6451ffd6eb7d1aea2338f1a3efd214586c5c4cb16a62d3f28dc399ba5