Dec 17 14:07:11.023 INFO checking tamanishi/blockchain_tutorial against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 14:07:11.023 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/tamanishi/blockchain_tutorial:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 14:07:11.591 INFO [stdout] 1e1d51b58b0ad51489748a4acbe79a77d7913186b1bdebc074b6f9de16bd7b93
Dec 17 14:07:11.595 INFO running `"docker" "start" "-a" "1e1d51b58b0ad51489748a4acbe79a77d7913186b1bdebc074b6f9de16bd7b93"`
Dec 17 14:07:13.232 INFO [stderr]     Checking serde v1.0.30
Dec 17 14:07:13.256 INFO [stderr]     Checking rust-crypto v0.2.36
Dec 17 14:07:13.256 INFO [stderr]    Compiling serde_derive v1.0.30
Dec 17 14:07:25.523 INFO [stderr]     Checking serde_json v1.0.11
Dec 17 14:07:27.488 INFO [stderr]     Checking blockchain_tutorial v0.1.0 (/opt/crater/workdir)
Dec 17 14:07:27.844 INFO [stderr] warning: unused `#[macro_use]` import
Dec 17 14:07:27.844 INFO [stderr]  --> src/main.rs:1:1
Dec 17 14:07:27.844 INFO [stderr]   |
Dec 17 14:07:27.844 INFO [stderr] 1 | #[macro_use]
Dec 17 14:07:27.844 INFO [stderr]   | ^^^^^^^^^^^^
Dec 17 14:07:27.844 INFO [stderr]   |
Dec 17 14:07:27.844 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 14:07:27.844 INFO [stderr] 
Dec 17 14:07:27.880 INFO [stderr] warning: unused `#[macro_use]` import
Dec 17 14:07:27.880 INFO [stderr]  --> src/main.rs:1:1
Dec 17 14:07:27.880 INFO [stderr]   |
Dec 17 14:07:27.880 INFO [stderr] 1 | #[macro_use]
Dec 17 14:07:27.880 INFO [stderr]   | ^^^^^^^^^^^^
Dec 17 14:07:27.880 INFO [stderr]   |
Dec 17 14:07:27.880 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 14:07:27.880 INFO [stderr] 
Dec 17 14:07:28.252 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.10s
Dec 17 14:07:28.670 INFO running `"docker" "inspect" "1e1d51b58b0ad51489748a4acbe79a77d7913186b1bdebc074b6f9de16bd7b93"`
Dec 17 14:07:29.002 INFO running `"docker" "rm" "-f" "1e1d51b58b0ad51489748a4acbe79a77d7913186b1bdebc074b6f9de16bd7b93"`
Dec 17 14:07:29.236 INFO [stdout] 1e1d51b58b0ad51489748a4acbe79a77d7913186b1bdebc074b6f9de16bd7b93