[INFO] cloning repository https://github.com/dengqj/rust_blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dengqj/rust_blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdengqj%2Frust_blockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdengqj%2Frust_blockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 42e34fe26ab6110903501da1cf9ace1eace14a4f
[INFO] checking dengqj/rust_blockchain against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdengqj%2Frust_blockchain" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dengqj/rust_blockchain
[INFO] finished tweaking git repo https://github.com/dengqj/rust_blockchain
[INFO] tweaked toml for git repo https://github.com/dengqj/rust_blockchain written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dengqj/rust_blockchain on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dengqj/rust_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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.218
[INFO] [stderr]   Downloaded rustc-serialize v0.3.25
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.100
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.100
[INFO] [stderr]   Downloaded once_cell v1.20.3
[INFO] [stderr]   Downloaded js-sys v0.3.77
[INFO] [stderr]   Downloaded rand v0.4.6
[INFO] [stderr]   Downloaded cc v1.2.16
[INFO] [stderr]   Downloaded log v0.4.26
[INFO] [stderr]   Downloaded serde v1.0.218
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.100
[INFO] [stderr]   Downloaded gcc v0.3.55
[INFO] [stderr]   Downloaded rustversion v1.0.20
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.100
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.100
[INFO] [stderr]   Downloaded chrono v0.4.40
[INFO] [stderr]   Downloaded syn v2.0.99
[INFO] [stderr]   Downloaded rand_core v0.4.2
[INFO] [stderr]   Downloaded rand v0.3.23
[INFO] [stderr]   Downloaded quote v1.0.39
[INFO] [stderr]   Downloaded windows-link v0.1.0
[INFO] [stderr]   Downloaded bumpalo v3.17.0
[INFO] [stderr]   Downloaded cpufeatures v0.2.17
[INFO] [stderr]   Downloaded libc v0.2.170
[INFO] [stderr]   Downloaded rust-crypto v0.2.36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4686b03f0ddf0758c7cbe636e9d84058f7263d7eb3dd8e83a4acbc151ea082b
[INFO] running `Command { std: "docker" "start" "-a" "f4686b03f0ddf0758c7cbe636e9d84058f7263d7eb3dd8e83a4acbc151ea082b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4686b03f0ddf0758c7cbe636e9d84058f7263d7eb3dd8e83a4acbc151ea082b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4686b03f0ddf0758c7cbe636e9d84058f7263d7eb3dd8e83a4acbc151ea082b", kill_on_drop: false }`
[INFO] [stdout] f4686b03f0ddf0758c7cbe636e9d84058f7263d7eb3dd8e83a4acbc151ea082b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4bc6d32377034213e7ffae8fbf3076080bba2af14e7026242523667987aac1f
[INFO] running `Command { std: "docker" "start" "-a" "d4bc6d32377034213e7ffae8fbf3076080bba2af14e7026242523667987aac1f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling libc v0.2.170
[INFO] [stderr]    Compiling serde v1.0.218
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking iana-time-zone v0.1.61
[INFO] [stderr]     Checking cpufeatures v0.2.17
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling quote v1.0.39
[INFO] [stderr]    Compiling syn v2.0.99
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]    Compiling serde_derive v1.0.218
[INFO] [stderr]     Checking chrono v0.4.40
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::time::SystemTime`
[INFO] [stdout]  --> src/block.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::time::SystemTime;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bincode::serialize`
[INFO] [stdout]  --> src/blockchain.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bincode::serialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sha256`
[INFO] [stdout]  --> src/blockchain.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use sha2::{Sha256, Digest};
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TimeZone`
[INFO] [stdout]  --> src/block.rs:6:29
[INFO] [stdout]   |
[INFO] [stdout] 6 | use chrono::{DateTime, Utc, TimeZone};
[INFO] [stdout]   |                             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Digest`
[INFO] [stdout]  --> src/blockchain.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use sha2::{Sha256, Digest};
[INFO] [stdout]   |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::SystemTime`
[INFO] [stdout]  --> src/block.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::time::SystemTime;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bincode::serialize`
[INFO] [stdout]  --> src/blockchain.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bincode::serialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sha256`
[INFO] [stdout]  --> src/blockchain.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use sha2::{Sha256, Digest};
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TimeZone`
[INFO] [stdout]  --> src/block.rs:6:29
[INFO] [stdout]   |
[INFO] [stdout] 6 | use chrono::{DateTime, Utc, TimeZone};
[INFO] [stdout]   |                             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Digest`
[INFO] [stdout]  --> src/blockchain.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use sha2::{Sha256, Digest};
[INFO] [stdout]   |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.42s
[INFO] running `Command { std: "docker" "inspect" "d4bc6d32377034213e7ffae8fbf3076080bba2af14e7026242523667987aac1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4bc6d32377034213e7ffae8fbf3076080bba2af14e7026242523667987aac1f", kill_on_drop: false }`
[INFO] [stdout] d4bc6d32377034213e7ffae8fbf3076080bba2af14e7026242523667987aac1f