Dec 19 07:36:00.583 INFO checking tamanishi/blockchain_tutorial against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 07:36:00.583 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 07:36:01.042 INFO [stdout] fcd80b3e83e6451d7612519a13213e61ceaf3a39ad47a425d43acd3881a0d4e0
Dec 19 07:36:01.046 INFO running `"docker" "start" "-a" "fcd80b3e83e6451d7612519a13213e61ceaf3a39ad47a425d43acd3881a0d4e0"`
Dec 19 07:36:02.672 INFO [stderr]     Checking serde v1.0.30
Dec 19 07:36:02.673 INFO [stderr]     Checking num-traits v0.2.1
Dec 19 07:36:02.692 INFO [stderr]     Checking rust-crypto v0.2.36
Dec 19 07:36:02.698 INFO [stderr]    Compiling serde_derive v1.0.30
Dec 19 07:36:19.385 INFO [stderr]     Checking serde_json v1.0.11
Dec 19 07:36:21.017 INFO [stderr]     Checking blockchain_tutorial v0.1.0 (/opt/crater/workdir)
Dec 19 07:36:21.243 INFO [stderr] warning: unused `#[macro_use]` import
Dec 19 07:36:21.244 INFO [stderr]  --> src/main.rs:1:1
Dec 19 07:36:21.244 INFO [stderr]   |
Dec 19 07:36:21.244 INFO [stderr] 1 | #[macro_use]
Dec 19 07:36:21.244 INFO [stderr]   | ^^^^^^^^^^^^
Dec 19 07:36:21.244 INFO [stderr]   |
Dec 19 07:36:21.244 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 07:36:21.244 INFO [stderr] 
Dec 19 07:36:21.443 INFO [stderr] warning: unused `#[macro_use]` import
Dec 19 07:36:21.443 INFO [stderr]  --> src/main.rs:1:1
Dec 19 07:36:21.443 INFO [stderr]   |
Dec 19 07:36:21.443 INFO [stderr] 1 | #[macro_use]
Dec 19 07:36:21.443 INFO [stderr]   | ^^^^^^^^^^^^
Dec 19 07:36:21.443 INFO [stderr]   |
Dec 19 07:36:21.443 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 07:36:21.443 INFO [stderr] 
Dec 19 07:36:21.803 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.25s
Dec 19 07:36:22.476 INFO running `"docker" "inspect" "fcd80b3e83e6451d7612519a13213e61ceaf3a39ad47a425d43acd3881a0d4e0"`
Dec 19 07:36:22.868 INFO running `"docker" "rm" "-f" "fcd80b3e83e6451d7612519a13213e61ceaf3a39ad47a425d43acd3881a0d4e0"`
Dec 19 07:36:23.152 INFO [stdout] fcd80b3e83e6451d7612519a13213e61ceaf3a39ad47a425d43acd3881a0d4e0