[INFO] fetching crate blockchain-base 0.1.0...
[INFO] testing blockchain-base-0.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate blockchain-base 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate blockchain-base 0.1.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blockchain-base 0.1.0
[INFO] finished tweaking crates.io crate blockchain-base 0.1.0
[INFO] tweaked toml for crates.io crate blockchain-base 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1979edd758c0334fe7e5563f5ec70afb0971b52c504785afde354d9cf96fb08e
[INFO] running `Command { std: "docker" "start" "-a" "1979edd758c0334fe7e5563f5ec70afb0971b52c504785afde354d9cf96fb08e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1979edd758c0334fe7e5563f5ec70afb0971b52c504785afde354d9cf96fb08e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1979edd758c0334fe7e5563f5ec70afb0971b52c504785afde354d9cf96fb08e", kill_on_drop: false }`
[INFO] [stdout] 1979edd758c0334fe7e5563f5ec70afb0971b52c504785afde354d9cf96fb08e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0abe4652127b8ad445d7210452a5d4034f688f63939d7a8431aecd1b9340e6a8
[INFO] running `Command { std: "docker" "start" "-a" "0abe4652127b8ad445d7210452a5d4034f688f63939d7a8431aecd1b9340e6a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling crypto-hash v0.3.4
[INFO] [stderr]    Compiling blockchain-base v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/blockchainblock.rs:252:9
[INFO] [stdout]     |
[INFO] [stdout] 252 |         &self.curr_hash.copy_from_slice(&digest);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 252 |         let _ = &self.curr_hash.copy_from_slice(&digest);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `Command { std: "docker" "inspect" "0abe4652127b8ad445d7210452a5d4034f688f63939d7a8431aecd1b9340e6a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0abe4652127b8ad445d7210452a5d4034f688f63939d7a8431aecd1b9340e6a8", kill_on_drop: false }`
[INFO] [stdout] 0abe4652127b8ad445d7210452a5d4034f688f63939d7a8431aecd1b9340e6a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fe277c30a839c541d84e9c5a9179da3f6bb762791bcd822e748eb059153754a
[INFO] running `Command { std: "docker" "start" "-a" "1fe277c30a839c541d84e9c5a9179da3f6bb762791bcd822e748eb059153754a", kill_on_drop: false }`
[INFO] [stderr]    Compiling blockchain-base v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/blockchainblock.rs:252:9
[INFO] [stdout]     |
[INFO] [stdout] 252 |         &self.curr_hash.copy_from_slice(&digest);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 252 |         let _ = &self.curr_hash.copy_from_slice(&digest);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/blockchainblock.rs:252:9
[INFO] [stdout]     |
[INFO] [stdout] 252 |         &self.curr_hash.copy_from_slice(&digest);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 252 |         let _ = &self.curr_hash.copy_from_slice(&digest);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "1fe277c30a839c541d84e9c5a9179da3f6bb762791bcd822e748eb059153754a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fe277c30a839c541d84e9c5a9179da3f6bb762791bcd822e748eb059153754a", kill_on_drop: false }`
[INFO] [stdout] 1fe277c30a839c541d84e9c5a9179da3f6bb762791bcd822e748eb059153754a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 79e3d59288535e81e03d713c7df748a64bd01e3ce6c51c629cd070ed32097061
[INFO] running `Command { std: "docker" "start" "-a" "79e3d59288535e81e03d713c7df748a64bd01e3ce6c51c629cd070ed32097061", kill_on_drop: false }`
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/blockchainblock.rs:252:9
[INFO] [stderr]     |
[INFO] [stderr] 252 |         &self.curr_hash.copy_from_slice(&digest);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 252 |         let _ = &self.curr_hash.copy_from_slice(&digest);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `blockchain-base` (lib) generated 1 warning
[INFO] [stderr] warning: `blockchain-base` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/blockchainblock-b7e4a638b9a30217)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests blockchainblock
[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] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/blockchainblock.rs - blockchainblock::BlockchainBlock::new (line 42) ... ok
[INFO] [stdout] test src/blockchainblock.rs - blockchainblock::BlockchainBlock::new (line 57) ... ok
[INFO] [stdout] test src/blockchainblock.rs - blockchainblock::BlockchainBlock::check_value_inblock (line 114) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "79e3d59288535e81e03d713c7df748a64bd01e3ce6c51c629cd070ed32097061", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79e3d59288535e81e03d713c7df748a64bd01e3ce6c51c629cd070ed32097061", kill_on_drop: false }`
[INFO] [stdout] 79e3d59288535e81e03d713c7df748a64bd01e3ce6c51c629cd070ed32097061