[INFO] cloning repository https://github.com/changttww/blockchain_demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/changttww/blockchain_demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchangttww%2Fblockchain_demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchangttww%2Fblockchain_demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 509274455bad62422dc2e5999a47f6b60e20d7c4
[INFO] testing changttww/blockchain_demo against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchangttww%2Fblockchain_demo" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/changttww/blockchain_demo
[INFO] finished tweaking git repo https://github.com/changttww/blockchain_demo
[INFO] tweaked toml for git repo https://github.com/changttww/blockchain_demo written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/changttww/blockchain_demo on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/changttww/blockchain_demo 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded windows-strings v0.4.0
[INFO] [stderr]   Downloaded windows-core v0.61.0
[INFO] [stderr]   Downloaded rustc-serialize v0.3.25
[INFO] [stderr]   Downloaded windows-result v0.3.2
[INFO] [stderr]   Downloaded clap v2.33.4
[INFO] [stderr]   Downloaded cc v1.2.20
[INFO] [stderr]   Downloaded rust-crypto v0.2.36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae86c7f689e3a76e5c8159f5b2b6c383200e89a7aaad32c99e2841c48a06bd13
[INFO] running `Command { std: "docker" "start" "-a" "ae86c7f689e3a76e5c8159f5b2b6c383200e89a7aaad32c99e2841c48a06bd13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae86c7f689e3a76e5c8159f5b2b6c383200e89a7aaad32c99e2841c48a06bd13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae86c7f689e3a76e5c8159f5b2b6c383200e89a7aaad32c99e2841c48a06bd13", kill_on_drop: false }`
[INFO] [stdout] ae86c7f689e3a76e5c8159f5b2b6c383200e89a7aaad32c99e2841c48a06bd13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be15db1042033e20be829986119e2cdc039f898aa5469529838b47f06a05cc55
[INFO] running `Command { std: "docker" "start" "-a" "be15db1042033e20be829986119e2cdc039f898aa5469529838b47f06a05cc55", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling smallvec v1.15.0
[INFO] [stderr]    Compiling gimli v0.31.1
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling miniz_oxide v0.8.8
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling chrono v0.4.40
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling clap v2.33.4
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling sled v0.34.7
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling addr2line v0.24.2
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling backtrace v0.3.74
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling blockchain_demo1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `blockchain::*`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use blockchain::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::sleep`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::thread::sleep;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::time::Duration;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_use]` attribute cannot be used on use statements
[INFO] [stdout]  --> src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = help: `#[macro_use]` can be applied to modules, extern crates, and crates
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_hash` is never used
[INFO] [stdout]   --> src/block.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl Block
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn set_hash(&mut self) -> Result<()>
[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 9.84s
[INFO] running `Command { std: "docker" "inspect" "be15db1042033e20be829986119e2cdc039f898aa5469529838b47f06a05cc55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be15db1042033e20be829986119e2cdc039f898aa5469529838b47f06a05cc55", kill_on_drop: false }`
[INFO] [stdout] be15db1042033e20be829986119e2cdc039f898aa5469529838b47f06a05cc55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 644c3ad6480b3c0098585cc6482bbc7ec347dea875bec3e4864a4f3959124372
[INFO] running `Command { std: "docker" "start" "-a" "644c3ad6480b3c0098585cc6482bbc7ec347dea875bec3e4864a4f3959124372", kill_on_drop: false }`
[INFO] [stderr]    Compiling blockchain_demo1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `blockchain::*`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use blockchain::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::sleep`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::thread::sleep;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::time::Duration;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_use]` attribute cannot be used on use statements
[INFO] [stdout]  --> src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = help: `#[macro_use]` can be applied to modules, extern crates, and crates
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_hash` is never used
[INFO] [stdout]   --> src/block.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl Block
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn set_hash(&mut self) -> Result<()>
[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 0.44s
[INFO] running `Command { std: "docker" "inspect" "644c3ad6480b3c0098585cc6482bbc7ec347dea875bec3e4864a4f3959124372", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "644c3ad6480b3c0098585cc6482bbc7ec347dea875bec3e4864a4f3959124372", kill_on_drop: false }`
[INFO] [stdout] 644c3ad6480b3c0098585cc6482bbc7ec347dea875bec3e4864a4f3959124372
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e7f0df5e9f99eb8b867e0a6c2405afc9680ddcbd02dfef5b4690ce2f1ae3ac49
[INFO] running `Command { std: "docker" "start" "-a" "e7f0df5e9f99eb8b867e0a6c2405afc9680ddcbd02dfef5b4690ce2f1ae3ac49", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `blockchain::*`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use blockchain::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread::sleep`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::thread::sleep;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::time::Duration;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `#[macro_use]` attribute cannot be used on use statements
[INFO] [stderr]  --> src/main.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]   = help: `#[macro_use]` can be applied to modules, extern crates, and crates
[INFO] [stderr]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `set_hash` is never used
[INFO] [stderr]   --> src/block.rs:33:12
[INFO] [stderr]    |
[INFO] [stderr] 28 | impl Block
[INFO] [stderr]    | ---------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 33 |     pub fn set_hash(&mut self) -> Result<()>
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `blockchain_demo1` (bin "blockchain_demo1" test) generated 5 warnings (run `cargo fix --bin "blockchain_demo1" --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/blockchain_demo1-24d523fbe0873ece)
[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" "e7f0df5e9f99eb8b867e0a6c2405afc9680ddcbd02dfef5b4690ce2f1ae3ac49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7f0df5e9f99eb8b867e0a6c2405afc9680ddcbd02dfef5b4690ce2f1ae3ac49", kill_on_drop: false }`
[INFO] [stdout] e7f0df5e9f99eb8b867e0a6c2405afc9680ddcbd02dfef5b4690ce2f1ae3ac49