[INFO] fetching crate ucb 0.0.1...
[INFO] testing ucb-0.0.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate ucb 0.0.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate ucb 0.0.1
[INFO] finished tweaking crates.io crate ucb 0.0.1
[INFO] tweaked toml for crates.io crate ucb 0.0.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ucb 0.0.1 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 ucb 0.0.1 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] bb56e352b70b0078db69bb4b127fd86b59d4af5bc6f07fd285c592bf5206b780
[INFO] running `Command { std: "docker" "start" "-a" "bb56e352b70b0078db69bb4b127fd86b59d4af5bc6f07fd285c592bf5206b780", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb56e352b70b0078db69bb4b127fd86b59d4af5bc6f07fd285c592bf5206b780", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb56e352b70b0078db69bb4b127fd86b59d4af5bc6f07fd285c592bf5206b780", kill_on_drop: false }`
[INFO] [stdout] bb56e352b70b0078db69bb4b127fd86b59d4af5bc6f07fd285c592bf5206b780
[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] 66ec336447fb999dc53e6c71dcba5163e38da4a225e9af0d867d1dc9b12b8dc2
[INFO] running `Command { std: "docker" "start" "-a" "66ec336447fb999dc53e6c71dcba5163e38da4a225e9af0d867d1dc9b12b8dc2", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucb v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "66ec336447fb999dc53e6c71dcba5163e38da4a225e9af0d867d1dc9b12b8dc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66ec336447fb999dc53e6c71dcba5163e38da4a225e9af0d867d1dc9b12b8dc2", kill_on_drop: false }`
[INFO] [stdout] 66ec336447fb999dc53e6c71dcba5163e38da4a225e9af0d867d1dc9b12b8dc2
[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] 5727b447444178f8c2c64ca28b7a31d38cbc9c17fd7e986a51bff90e1519ad3c
[INFO] running `Command { std: "docker" "start" "-a" "5727b447444178f8c2c64ca28b7a31d38cbc9c17fd7e986a51bff90e1519ad3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucb v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "5727b447444178f8c2c64ca28b7a31d38cbc9c17fd7e986a51bff90e1519ad3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5727b447444178f8c2c64ca28b7a31d38cbc9c17fd7e986a51bff90e1519ad3c", kill_on_drop: false }`
[INFO] [stdout] 5727b447444178f8c2c64ca28b7a31d38cbc9c17fd7e986a51bff90e1519ad3c
[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] 19f69ae9e0b39ff6f8013265fb33eb9b3a53dd6a1835be45beecb19e5beb073f
[INFO] running `Command { std: "docker" "start" "-a" "19f69ae9e0b39ff6f8013265fb33eb9b3a53dd6a1835be45beecb19e5beb073f", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ucb-5b9b15cf4aa6424a)
[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" "19f69ae9e0b39ff6f8013265fb33eb9b3a53dd6a1835be45beecb19e5beb073f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19f69ae9e0b39ff6f8013265fb33eb9b3a53dd6a1835be45beecb19e5beb073f", kill_on_drop: false }`
[INFO] [stdout] 19f69ae9e0b39ff6f8013265fb33eb9b3a53dd6a1835be45beecb19e5beb073f