[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-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/jianingy/blockchain-demo"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/jianingy/blockchain-demo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jianingy/blockchain-demo" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/jianingy/blockchain-demo"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/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#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jianingy/blockchain-demo on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-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-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/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-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/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" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jianingy/blockchain-demo against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-1/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/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" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 36c3313bd397c3497e6ae277e0aaf910bb09013871ef5a7af9aec7f1d14d968c
[INFO] running `"docker" "start" "-a" "36c3313bd397c3497e6ae277e0aaf910bb09013871ef5a7af9aec7f1d14d968c"`
[INFO] [stderr]    Compiling backtrace-sys v0.1.19
[INFO] [stderr]     Checking mustache v0.8.2
[INFO] [stderr]     Checking tokio-threadpool v0.1.3
[INFO] [stderr]     Checking openssl v0.9.24
[INFO] [stderr]     Checking serde_urlencoded v0.5.2
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking nickel v0.10.1
[INFO] [stderr]     Checking tokio-fs v0.1.0
[INFO] [stderr]     Checking tokio v0.1.6
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking native-tls v0.1.5
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking tokio-tls v0.1.4
[INFO] [stderr]     Checking hyper v0.11.27
[INFO] [stderr]     Checking backtrace v0.3.8
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking hyper-tls v0.1.3
[INFO] [stderr]     Checking reqwest v0.8.5
[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 22.10s
[INFO] running `"docker" "inspect" "36c3313bd397c3497e6ae277e0aaf910bb09013871ef5a7af9aec7f1d14d968c"`
[INFO] running `"docker" "rm" "-f" "36c3313bd397c3497e6ae277e0aaf910bb09013871ef5a7af9aec7f1d14d968c"`
[INFO] [stdout] 36c3313bd397c3497e6ae277e0aaf910bb09013871ef5a7af9aec7f1d14d968c