[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] checking changttww/blockchain_demo against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchangttww%2Fblockchain_demo" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-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-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/changttww/blockchain_demo on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasi v0.10.0+wasi-snapshot-preview1
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[INFO] [stderr]   Downloaded windows-strings v0.4.0
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[INFO] [stderr]   Downloaded syn v2.0.100
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[INFO] [stderr]   Downloaded rust-crypto v0.2.36
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dbb311a57683be5e403cc8b55147acee98f496f74679ee0e748a597081134431
[INFO] running `Command { std: "docker" "start" "-a" "dbb311a57683be5e403cc8b55147acee98f496f74679ee0e748a597081134431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbb311a57683be5e403cc8b55147acee98f496f74679ee0e748a597081134431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbb311a57683be5e403cc8b55147acee98f496f74679ee0e748a597081134431", kill_on_drop: false }`
[INFO] [stdout] dbb311a57683be5e403cc8b55147acee98f496f74679ee0e748a597081134431
[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=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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5dd6c3c000464b60f71840cc1e28b24f2b28afa223cd87e13c511177ec19d1e
[INFO] running `Command { std: "docker" "start" "-a" "a5dd6c3c000464b60f71840cc1e28b24f2b28afa223cd87e13c511177ec19d1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]     Checking instant v0.1.13
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[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking gimli v0.31.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking smallvec v1.15.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking miniz_oxide v0.8.8
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking rustc-demangle v0.1.24
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[INFO] [stderr]     Checking fs2 v0.4.3
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[INFO] [stderr]     Checking iana-time-zone v0.1.63
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking opaque-debug v0.3.1
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking chrono v0.4.40
[INFO] [stderr]     Checking clap v2.33.4
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking sled v0.34.7
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking backtrace v0.3.74
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking 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)]` 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]` only has an effect on `extern crate` and modules
[INFO] [stdout]  --> src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[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)]` 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]` only has an effect on `extern crate` and modules
[INFO] [stdout]  --> src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` 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)]` 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 45.15s
[INFO] running `Command { std: "docker" "inspect" "a5dd6c3c000464b60f71840cc1e28b24f2b28afa223cd87e13c511177ec19d1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5dd6c3c000464b60f71840cc1e28b24f2b28afa223cd87e13c511177ec19d1e", kill_on_drop: false }`
[INFO] [stdout] a5dd6c3c000464b60f71840cc1e28b24f2b28afa223cd87e13c511177ec19d1e