[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-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/jianingy/blockchain-demo"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/jianingy/blockchain-demo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jianingy/blockchain-demo" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/jianingy/blockchain-demo"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/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#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jianingy/blockchain-demo on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-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-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/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-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/jianingy/blockchain-demo/Cargo.toml
[INFO] crate jianingy/blockchain-demo already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jianingy/blockchain-demo against try#99a7498759a22b5684caf798a98b7e90ad9d2443 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-7/try#99a7498759a22b5684caf798a98b7e90ad9d2443:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/jianingy/blockchain-demo:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 22df0bd6d2a183aec86bb48e098d0ca4b4380c8c41417c6d23b12999faaffb8f
[INFO] running `"docker" "start" "-a" "22df0bd6d2a183aec86bb48e098d0ca4b4380c8c41417c6d23b12999faaffb8f"`
[INFO] [stderr]    Compiling serde v1.0.59
[INFO] [stderr]    Compiling backtrace-sys v0.1.19
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking mustache v0.8.2
[INFO] [stderr]     Checking tokio-threadpool v0.1.3
[INFO] [stderr]     Checking openssl v0.9.24
[INFO] [stderr]    Compiling serde_derive v1.0.59
[INFO] [stderr]     Checking hyper v0.10.13
[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 nickel v0.10.1
[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 serde_json v1.0.17
[INFO] [stderr]     Checking serde_urlencoded v0.5.2
[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 45.38s
[INFO] running `"docker" "inspect" "22df0bd6d2a183aec86bb48e098d0ca4b4380c8c41417c6d23b12999faaffb8f"`
[INFO] running `"docker" "rm" "-f" "22df0bd6d2a183aec86bb48e098d0ca4b4380c8c41417c6d23b12999faaffb8f"`
[INFO] [stdout] 22df0bd6d2a183aec86bb48e098d0ca4b4380c8c41417c6d23b12999faaffb8f