[INFO] cloning repository https://github.com/laksamba/Toy_Blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/laksamba/Toy_Blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flaksamba%2FToy_Blockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flaksamba%2FToy_Blockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f2f4ae58485fdda030f02fecd4ba925533cc0a4
[INFO] testing laksamba/Toy_Blockchain against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flaksamba%2FToy_Blockchain" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/laksamba/Toy_Blockchain
[INFO] finished tweaking git repo https://github.com/laksamba/Toy_Blockchain
[INFO] tweaked toml for git repo https://github.com/laksamba/Toy_Blockchain written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/laksamba/Toy_Blockchain on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/laksamba/Toy_Blockchain 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-2026-04-21" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb6fe3a623854b32c26367e55455ce9e8a70c7a1e538b5279724c83286db8188
[INFO] running `Command { std: "docker" "start" "-a" "cb6fe3a623854b32c26367e55455ce9e8a70c7a1e538b5279724c83286db8188", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb6fe3a623854b32c26367e55455ce9e8a70c7a1e538b5279724c83286db8188", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb6fe3a623854b32c26367e55455ce9e8a70c7a1e538b5279724c83286db8188", kill_on_drop: false }`
[INFO] [stdout] cb6fe3a623854b32c26367e55455ce9e8a70c7a1e538b5279724c83286db8188
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 176e0add03886ebdd7f35a624fe6ef844fdcfa3ebf6a554b1a8ad2d097a5c675
[INFO] running `Command { std: "docker" "start" "-a" "176e0add03886ebdd7f35a624fe6ef844fdcfa3ebf6a554b1a8ad2d097a5c675", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling zerocopy v0.8.35
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling snap v1.1.1
[INFO] [stderr]    Compiling zeroize v1.8.2
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling signature v2.2.0
[INFO] [stderr]    Compiling crc v3.4.0
[INFO] [stderr]    Compiling dyn-clone v1.0.20
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling integer-encoding v3.0.4
[INFO] [stderr]    Compiling ed25519 v2.2.3
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling newline-converter v0.2.2
[INFO] [stderr]    Compiling curve25519-dalek v4.1.3
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling quote v1.0.43
[INFO] [stderr]    Compiling chrono v0.4.43
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling errno v0.2.8
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling signal-hook-mio v0.2.5
[INFO] [stderr]    Compiling crossterm v0.25.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling curve25519-dalek-derive v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling rusty-leveldb v3.0.3
[INFO] [stderr]    Compiling inquire v0.6.2
[INFO] [stderr]    Compiling ed25519-dalek v2.2.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling toy_blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `verify` is never used
[INFO] [stdout]   --> src/transaction.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Transaction {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn verify(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.81s
[INFO] running `Command { std: "docker" "inspect" "176e0add03886ebdd7f35a624fe6ef844fdcfa3ebf6a554b1a8ad2d097a5c675", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "176e0add03886ebdd7f35a624fe6ef844fdcfa3ebf6a554b1a8ad2d097a5c675", kill_on_drop: false }`
[INFO] [stdout] 176e0add03886ebdd7f35a624fe6ef844fdcfa3ebf6a554b1a8ad2d097a5c675
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eac8993296bf0c649a95d4e9d37d5496c95f90ab51cda26cf40fcbd0b9412a34
[INFO] running `Command { std: "docker" "start" "-a" "eac8993296bf0c649a95d4e9d37d5496c95f90ab51cda26cf40fcbd0b9412a34", kill_on_drop: false }`
[INFO] [stderr]    Compiling toy_blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `verify` is never used
[INFO] [stdout]   --> src/transaction.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Transaction {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn verify(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "eac8993296bf0c649a95d4e9d37d5496c95f90ab51cda26cf40fcbd0b9412a34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eac8993296bf0c649a95d4e9d37d5496c95f90ab51cda26cf40fcbd0b9412a34", kill_on_drop: false }`
[INFO] [stdout] eac8993296bf0c649a95d4e9d37d5496c95f90ab51cda26cf40fcbd0b9412a34
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 02e927ac7c60c0db9385b369ad13d3911e8e71b9c619a5cbf20d58f7c7c6b60f
[INFO] running `Command { std: "docker" "start" "-a" "02e927ac7c60c0db9385b369ad13d3911e8e71b9c619a5cbf20d58f7c7c6b60f", kill_on_drop: false }`
[INFO] [stderr] warning: method `verify` is never used
[INFO] [stderr]   --> src/transaction.rs:29:12
[INFO] [stderr]    |
[INFO] [stderr] 15 | impl Transaction {
[INFO] [stderr]    | ---------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 29 |     pub fn verify(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `toy_blockchain` (bin "toy_blockchain" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/toy_blockchain-5c62e7af13870556)
[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" "02e927ac7c60c0db9385b369ad13d3911e8e71b9c619a5cbf20d58f7c7c6b60f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02e927ac7c60c0db9385b369ad13d3911e8e71b9c619a5cbf20d58f7c7c6b60f", kill_on_drop: false }`
[INFO] [stdout] 02e927ac7c60c0db9385b369ad13d3911e8e71b9c619a5cbf20d58f7c7c6b60f
