[INFO] cloning repository https://github.com/aitorzaldua/cryptocurrency
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aitorzaldua/cryptocurrency" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faitorzaldua%2Fcryptocurrency", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faitorzaldua%2Fcryptocurrency'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 28c808c3c5292c4692215d00d954b8cd39146e2a
[INFO] testing aitorzaldua/cryptocurrency against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faitorzaldua%2Fcryptocurrency" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aitorzaldua/cryptocurrency on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aitorzaldua/cryptocurrency
[INFO] finished tweaking git repo https://github.com/aitorzaldua/cryptocurrency
[INFO] tweaked toml for git repo https://github.com/aitorzaldua/cryptocurrency written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/aitorzaldua/cryptocurrency already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81b168e3eca1bf54002bed9d32589c3778c5b6decb78d1ebd47201657a9865cf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "81b168e3eca1bf54002bed9d32589c3778c5b6decb78d1ebd47201657a9865cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81b168e3eca1bf54002bed9d32589c3778c5b6decb78d1ebd47201657a9865cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81b168e3eca1bf54002bed9d32589c3778c5b6decb78d1ebd47201657a9865cf", kill_on_drop: false }`
[INFO] [stdout] 81b168e3eca1bf54002bed9d32589c3778c5b6decb78d1ebd47201657a9865cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15af732627388480b88dd803577b8758b1256f4b1ad2e83c3f22e3be469bbaa7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "15af732627388480b88dd803577b8758b1256f4b1ad2e83c3f22e3be469bbaa7", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling libc v0.2.96
[INFO] [stderr]    Compiling openssl v0.10.34
[INFO] [stderr]    Compiling openssl-sys v0.9.63
[INFO] [stderr]    Compiling crypto-hash v0.3.4
[INFO] [stderr]    Compiling cryptocurrency v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0412]: cannot find type `BlockHash` in this scope
[INFO] [stdout]  --> src/block.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub hash: BlockHash,
[INFO] [stdout]   |               ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BlockHash` in this scope
[INFO] [stdout]   --> src/block.rs:10:26
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub prev_block_hash: BlockHash,
[INFO] [stdout]    |                          ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BlockHash` in this scope
[INFO] [stdout]   --> src/block.rs:29:63
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn new (index: u32, timestamp: u128, prev_block_hash: BlockHash, nonce: u64, payload: String, difficulty: u128) -> Self {
[INFO] [stdout]    |                                                               ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BlockHash` in this scope
[INFO] [stdout]   --> src/block.rs:72:33
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub fn check_difficulty (hash: &BlockHash, difficulty: u128) -> bool {
[INFO] [stdout]    |                                 ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/transaction.rs:15:22
[INFO] [stdout]    |
[INFO] [stdout] 15 |         bytes.extend((&u64_bytes(&self.value)));
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cryptocurrency` due to 5 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "15af732627388480b88dd803577b8758b1256f4b1ad2e83c3f22e3be469bbaa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15af732627388480b88dd803577b8758b1256f4b1ad2e83c3f22e3be469bbaa7", kill_on_drop: false }`
[INFO] [stdout] 15af732627388480b88dd803577b8758b1256f4b1ad2e83c3f22e3be469bbaa7