[INFO] fetching crate cooplan-util 0.1.1...
[INFO] testing cooplan-util-0.1.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate cooplan-util 0.1.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate cooplan-util 0.1.1
[INFO] finished tweaking crates.io crate cooplan-util 0.1.1
[INFO] tweaked toml for crates.io crate cooplan-util 0.1.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cooplan-util 0.1.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 29 packages to latest compatible versions
[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] c1b7627f707277ce4ddf158e815a348fc121e8b40d5018911fe68ec4d85e75b2
[INFO] running `Command { std: "docker" "start" "-a" "c1b7627f707277ce4ddf158e815a348fc121e8b40d5018911fe68ec4d85e75b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1b7627f707277ce4ddf158e815a348fc121e8b40d5018911fe68ec4d85e75b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1b7627f707277ce4ddf158e815a348fc121e8b40d5018911fe68ec4d85e75b2", kill_on_drop: false }`
[INFO] [stdout] c1b7627f707277ce4ddf158e815a348fc121e8b40d5018911fe68ec4d85e75b2
[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] eaf3567323534ba442e1f1449219fec4a75a55169ab9691d35ea248885ec9f8d
[INFO] running `Command { std: "docker" "start" "-a" "eaf3567323534ba442e1f1449219fec4a75a55169ab9691d35ea248885ec9f8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling cooplan-util v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `Command { std: "docker" "inspect" "eaf3567323534ba442e1f1449219fec4a75a55169ab9691d35ea248885ec9f8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaf3567323534ba442e1f1449219fec4a75a55169ab9691d35ea248885ec9f8d", kill_on_drop: false }`
[INFO] [stdout] eaf3567323534ba442e1f1449219fec4a75a55169ab9691d35ea248885ec9f8d
[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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7301910aa2b2d8aa8a64f7a3a1aadcd72944f044e86fe1845204cd626e2a970
[INFO] running `Command { std: "docker" "start" "-a" "d7301910aa2b2d8aa8a64f7a3a1aadcd72944f044e86fe1845204cd626e2a970", kill_on_drop: false }`
[INFO] [stderr]    Compiling cooplan-util v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `receiver`
[INFO] [stdout]   --> src/error_handler.rs:28:18
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let (sender, receiver) = tokio::sync::oneshot::channel::<Result<&str, &str>>();
[INFO] [stdout]    |                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receiver`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "d7301910aa2b2d8aa8a64f7a3a1aadcd72944f044e86fe1845204cd626e2a970", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7301910aa2b2d8aa8a64f7a3a1aadcd72944f044e86fe1845204cd626e2a970", kill_on_drop: false }`
[INFO] [stdout] d7301910aa2b2d8aa8a64f7a3a1aadcd72944f044e86fe1845204cd626e2a970
[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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1ad8dce8ab2bc6c54d29e0204f76c34f349d7bd92f701cb48654a20da19fe085
[INFO] running `Command { std: "docker" "start" "-a" "1ad8dce8ab2bc6c54d29e0204f76c34f349d7bd92f701cb48654a20da19fe085", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `receiver`
[INFO] [stderr]   --> src/error_handler.rs:28:18
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let (sender, receiver) = tokio::sync::oneshot::channel::<Result<&str, &str>>();
[INFO] [stderr]    |                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receiver`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cooplan-util` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cooplan_util-8610ded48a1f6b97)
[INFO] [stderr]    Doc-tests cooplan_util
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test error_handler::returns_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1ad8dce8ab2bc6c54d29e0204f76c34f349d7bd92f701cb48654a20da19fe085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ad8dce8ab2bc6c54d29e0204f76c34f349d7bd92f701cb48654a20da19fe085", kill_on_drop: false }`
[INFO] [stdout] 1ad8dce8ab2bc6c54d29e0204f76c34f349d7bd92f701cb48654a20da19fe085