[INFO] fetching crate rust-playground 0.0.0...
[INFO] testing rust-playground-0.0.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate rust-playground 0.0.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate rust-playground 0.0.0
[INFO] finished tweaking crates.io crate rust-playground 0.0.0
[INFO] tweaked toml for crates.io crate rust-playground 0.0.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust-playground 0.0.0 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 rust-playground 0.0.0 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] f7a4c5e38b04d597e81ae87a68a91eb3812be935060983da5bb07e7c58d22005
[INFO] running `Command { std: "docker" "start" "-a" "f7a4c5e38b04d597e81ae87a68a91eb3812be935060983da5bb07e7c58d22005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7a4c5e38b04d597e81ae87a68a91eb3812be935060983da5bb07e7c58d22005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7a4c5e38b04d597e81ae87a68a91eb3812be935060983da5bb07e7c58d22005", kill_on_drop: false }`
[INFO] [stdout] f7a4c5e38b04d597e81ae87a68a91eb3812be935060983da5bb07e7c58d22005
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 0c9f037524e510542a9d69610c9219bcb1136da47305bea316c610da0c4e6db6
[INFO] running `Command { std: "docker" "start" "-a" "0c9f037524e510542a9d69610c9219bcb1136da47305bea316c610da0c4e6db6", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-playground v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "0c9f037524e510542a9d69610c9219bcb1136da47305bea316c610da0c4e6db6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c9f037524e510542a9d69610c9219bcb1136da47305bea316c610da0c4e6db6", kill_on_drop: false }`
[INFO] [stdout] 0c9f037524e510542a9d69610c9219bcb1136da47305bea316c610da0c4e6db6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c3040c49baec4b6e887571048f39167ade73fd47f99bba1064e167acc29f8dbc
[INFO] running `Command { std: "docker" "start" "-a" "c3040c49baec4b6e887571048f39167ade73fd47f99bba1064e167acc29f8dbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-playground v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "c3040c49baec4b6e887571048f39167ade73fd47f99bba1064e167acc29f8dbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3040c49baec4b6e887571048f39167ade73fd47f99bba1064e167acc29f8dbc", kill_on_drop: false }`
[INFO] [stdout] c3040c49baec4b6e887571048f39167ade73fd47f99bba1064e167acc29f8dbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] d8cbd56d843fe27fbc5b1f32cb8fbae45b4f87aab4441f28a7470f284400f3e6
[INFO] running `Command { std: "docker" "start" "-a" "d8cbd56d843fe27fbc5b1f32cb8fbae45b4f87aab4441f28a7470f284400f3e6", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_playground-49b98eb550059aca)
[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" "d8cbd56d843fe27fbc5b1f32cb8fbae45b4f87aab4441f28a7470f284400f3e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8cbd56d843fe27fbc5b1f32cb8fbae45b4f87aab4441f28a7470f284400f3e6", kill_on_drop: false }`
[INFO] [stdout] d8cbd56d843fe27fbc5b1f32cb8fbae45b4f87aab4441f28a7470f284400f3e6