[INFO] updating cached repository jianingy/blockchain-demo
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jianingy/blockchain-demo
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jianingy/blockchain-demo" "work/ex/pr-59527/sources/master#003382e4150984cb476047b3925edf8d75df2d59/gh/jianingy/blockchain-demo"`
[INFO] [stderr] Cloning into 'work/ex/pr-59527/sources/master#003382e4150984cb476047b3925edf8d75df2d59/gh/jianingy/blockchain-demo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jianingy/blockchain-demo" "work/ex/pr-59527/sources/try#47f4f94676fbdd494dd2c2dc9ac377a13fc78e00/gh/jianingy/blockchain-demo"`
[INFO] [stderr] Cloning into 'work/ex/pr-59527/sources/try#47f4f94676fbdd494dd2c2dc9ac377a13fc78e00/gh/jianingy/blockchain-demo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 02cdc0963b86006d965efa772db69455c5164265
[INFO] sha for GitHub repo jianingy/blockchain-demo: 02cdc0963b86006d965efa772db69455c5164265
[INFO] validating manifest of jianingy/blockchain-demo on toolchain master#003382e4150984cb476047b3925edf8d75df2d59
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+003382e4150984cb476047b3925edf8d75df2d59-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jianingy/blockchain-demo on toolchain try#47f4f94676fbdd494dd2c2dc9ac377a13fc78e00
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+47f4f94676fbdd494dd2c2dc9ac377a13fc78e00-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jianingy/blockchain-demo
[INFO] finished frobbing jianingy/blockchain-demo
[INFO] frobbed toml for jianingy/blockchain-demo written to work/ex/pr-59527/sources/master#003382e4150984cb476047b3925edf8d75df2d59/gh/jianingy/blockchain-demo/Cargo.toml
[INFO] started frobbing jianingy/blockchain-demo
[INFO] finished frobbing jianingy/blockchain-demo
[INFO] frobbed toml for jianingy/blockchain-demo written to work/ex/pr-59527/sources/try#47f4f94676fbdd494dd2c2dc9ac377a13fc78e00/gh/jianingy/blockchain-demo/Cargo.toml
[INFO] crate jianingy/blockchain-demo already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+003382e4150984cb476047b3925edf8d75df2d59-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+47f4f94676fbdd494dd2c2dc9ac377a13fc78e00-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jianingy/blockchain-demo against master#003382e4150984cb476047b3925edf8d75df2d59 for pr-59527
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59527/worker-3/master#003382e4150984cb476047b3925edf8d75df2d59:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59527/sources/master#003382e4150984cb476047b3925edf8d75df2d59/gh/jianingy/blockchain-demo:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+003382e4150984cb476047b3925edf8d75df2d59-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a60cb031f0bb92676f7da62e64c787a3abd8516cbd844998e8f52b3994f4fc78
[INFO] running `"docker" "start" "-a" "a60cb031f0bb92676f7da62e64c787a3abd8516cbd844998e8f52b3994f4fc78"`
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling backtrace-sys v0.1.19
[INFO] [stderr]     Checking openssl v0.9.24
[INFO] [stderr]     Checking serde_urlencoded v0.5.2
[INFO] [stderr]     Checking nickel v0.10.1
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking chrono v0.4.2
[INFO] [stderr]     Checking native-tls v0.1.5
[INFO] [stderr]     Checking tokio-tls v0.1.4
[INFO] [stderr]     Checking hyper-tls v0.1.3
[INFO] [stderr]     Checking reqwest v0.8.5
[INFO] [stderr]     Checking backtrace v0.3.8
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking blockchain-demo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Serialize`, `Serializer`
[INFO] [stderr]  --> src/blockchain.rs:4:18
[INFO] [stderr]   |
[INFO] [stderr] 4 | use serde::ser::{Serialize, Serializer};
[INFO] [stderr]   |                  ^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Serialize`, `Serializer`
[INFO] [stderr]  --> src/blockchain.rs:4:18
[INFO] [stderr]   |
[INFO] [stderr] 4 | use serde::ser::{Serialize, Serializer};
[INFO] [stderr]   |                  ^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.12s
[INFO] running `"docker" "inspect" "a60cb031f0bb92676f7da62e64c787a3abd8516cbd844998e8f52b3994f4fc78"`
[INFO] running `"docker" "rm" "-f" "a60cb031f0bb92676f7da62e64c787a3abd8516cbd844998e8f52b3994f4fc78"`
[INFO] [stdout] a60cb031f0bb92676f7da62e64c787a3abd8516cbd844998e8f52b3994f4fc78