[INFO] cloning repository https://github.com/T1lman/basic_blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/T1lman/basic_blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FT1lman%2Fbasic_blockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FT1lman%2Fbasic_blockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 39c8077a312d07b6c4e8b2b80413057549cb66e0
[INFO] testing T1lman/basic_blockchain/39c8077a312d07b6c4e8b2b80413057549cb66e0 against 1.82.0 for beta-1.83-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FT1lman%2Fbasic_blockchain" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/T1lman/basic_blockchain on toolchain 1.82.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.82.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/T1lman/basic_blockchain
[INFO] finished tweaking git repo https://github.com/T1lman/basic_blockchain
[INFO] tweaked toml for git repo https://github.com/T1lman/basic_blockchain written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/T1lman/basic_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" "+1.82.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+1.82.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33d2425d99714fd58c4ab947db1cbb32ad17d50a2078174a73d69faf2a6712c7
[INFO] running `Command { std: "docker" "start" "-a" "33d2425d99714fd58c4ab947db1cbb32ad17d50a2078174a73d69faf2a6712c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33d2425d99714fd58c4ab947db1cbb32ad17d50a2078174a73d69faf2a6712c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33d2425d99714fd58c4ab947db1cbb32ad17d50a2078174a73d69faf2a6712c7", kill_on_drop: false }`
[INFO] [stdout] 33d2425d99714fd58c4ab947db1cbb32ad17d50a2078174a73d69faf2a6712c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+1.82.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68d2e61988964014b9090f08607982694c752569cb1dd6b34428a9ad48dbd4c3
[INFO] running `Command { std: "docker" "start" "-a" "68d2e61988964014b9090f08607982694c752569cb1dd6b34428a9ad48dbd4c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling cpufeatures v0.2.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling block-buffer v0.10.2
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling digest v0.10.3
[INFO] [stderr]    Compiling sha2 v0.10.2
[INFO] [stderr]    Compiling basic_blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.37s
[INFO] running `Command { std: "docker" "inspect" "68d2e61988964014b9090f08607982694c752569cb1dd6b34428a9ad48dbd4c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68d2e61988964014b9090f08607982694c752569cb1dd6b34428a9ad48dbd4c3", kill_on_drop: false }`
[INFO] [stdout] 68d2e61988964014b9090f08607982694c752569cb1dd6b34428a9ad48dbd4c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+1.82.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e858a468d6974abba6d6c2edea40719cc1273e09e3fcb1ab2668c5d0cd797ea
[INFO] running `Command { std: "docker" "start" "-a" "8e858a468d6974abba6d6c2edea40719cc1273e09e3fcb1ab2668c5d0cd797ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling basic_blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::block::Block`
[INFO] [stdout]  --> src/lib/test.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::block::Block;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `blockref`
[INFO] [stdout]   --> src/lib/test.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let blockref = blockchain.nth_mut_ref(1).currenthash = String::new();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_blockref`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `blockref`
[INFO] [stdout]   --> src/lib/test.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let blockref = blockchain.nth_mut_ref(2).prevhash = String::new();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_blockref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "8e858a468d6974abba6d6c2edea40719cc1273e09e3fcb1ab2668c5d0cd797ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e858a468d6974abba6d6c2edea40719cc1273e09e3fcb1ab2668c5d0cd797ea", kill_on_drop: false }`
[INFO] [stdout] 8e858a468d6974abba6d6c2edea40719cc1273e09e3fcb1ab2668c5d0cd797ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+1.82.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] da53c3a7dcac9c41542686180cc217f2782d930cb2bf69a753df05e335e4d69c
[INFO] running `Command { std: "docker" "start" "-a" "da53c3a7dcac9c41542686180cc217f2782d930cb2bf69a753df05e335e4d69c", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::block::Block`
[INFO] [stderr]  --> src/lib/test.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::block::Block;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `blockref`
[INFO] [stderr]   --> src/lib/test.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let blockref = blockchain.nth_mut_ref(1).currenthash = String::new();
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_blockref`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `blockref`
[INFO] [stderr]   --> src/lib/test.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let blockref = blockchain.nth_mut_ref(2).prevhash = String::new();
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_blockref`
[INFO] [stderr] 
[INFO] [stderr] warning: `basic_blockchain` (lib test) generated 3 warnings (run `cargo fix --lib -p basic_blockchain --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib/lib.rs (/opt/rustwide/target/debug/deps/utils-96464923b01936f5)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::test_validation ... 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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/basic_blockchain-861d6e21f67c4318)
[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] [stderr]    Doc-tests utils
[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" "da53c3a7dcac9c41542686180cc217f2782d930cb2bf69a753df05e335e4d69c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da53c3a7dcac9c41542686180cc217f2782d930cb2bf69a753df05e335e4d69c", kill_on_drop: false }`
[INFO] [stdout] da53c3a7dcac9c41542686180cc217f2782d930cb2bf69a753df05e335e4d69c