[INFO] fetching crate this-blockchain 0.1.0...
[INFO] testing this-blockchain-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate this-blockchain 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate this-blockchain 0.1.0
[INFO] finished tweaking crates.io crate this-blockchain 0.1.0
[INFO] tweaked toml for crates.io crate this-blockchain 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate this-blockchain 0.1.0 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 this-blockchain 0.1.0 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 0cec476318c7a252849e594a08ac1d3c9878e1d1aad38f475496c9a5c1634958
[INFO] running `Command { std: "docker" "start" "-a" "0cec476318c7a252849e594a08ac1d3c9878e1d1aad38f475496c9a5c1634958", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cec476318c7a252849e594a08ac1d3c9878e1d1aad38f475496c9a5c1634958", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cec476318c7a252849e594a08ac1d3c9878e1d1aad38f475496c9a5c1634958", kill_on_drop: false }`
[INFO] [stdout] 0cec476318c7a252849e594a08ac1d3c9878e1d1aad38f475496c9a5c1634958
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 3ca08d9674068bc7519f33f28bcbbf8d2eeb8082de919934925a43cddfc6c653
[INFO] running `Command { std: "docker" "start" "-a" "3ca08d9674068bc7519f33f28bcbbf8d2eeb8082de919934925a43cddfc6c653", kill_on_drop: false }`
[INFO] [stderr]    Compiling this-blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "3ca08d9674068bc7519f33f28bcbbf8d2eeb8082de919934925a43cddfc6c653", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ca08d9674068bc7519f33f28bcbbf8d2eeb8082de919934925a43cddfc6c653", kill_on_drop: false }`
[INFO] [stdout] 3ca08d9674068bc7519f33f28bcbbf8d2eeb8082de919934925a43cddfc6c653
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d9668c57c512e123748e8604e67cb2b50a5b720a572c9885464d94fb51179a83
[INFO] running `Command { std: "docker" "start" "-a" "d9668c57c512e123748e8604e67cb2b50a5b720a572c9885464d94fb51179a83", kill_on_drop: false }`
[INFO] [stderr]    Compiling this-blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "d9668c57c512e123748e8604e67cb2b50a5b720a572c9885464d94fb51179a83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9668c57c512e123748e8604e67cb2b50a5b720a572c9885464d94fb51179a83", kill_on_drop: false }`
[INFO] [stdout] d9668c57c512e123748e8604e67cb2b50a5b720a572c9885464d94fb51179a83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f553d47cf9f617c6470f93d8137955f8652bac0fde86f4721232110f5ee4e3ca
[INFO] running `Command { std: "docker" "start" "-a" "f553d47cf9f617c6470f93d8137955f8652bac0fde86f4721232110f5ee4e3ca", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/this_blockchain-690cd7c9ddab8835)
[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" "f553d47cf9f617c6470f93d8137955f8652bac0fde86f4721232110f5ee4e3ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f553d47cf9f617c6470f93d8137955f8652bac0fde86f4721232110f5ee4e3ca", kill_on_drop: false }`
[INFO] [stdout] f553d47cf9f617c6470f93d8137955f8652bac0fde86f4721232110f5ee4e3ca