Dec 11 06:54:47.889 INFO checking uxnow/flappybird against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 06:54:47.889 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 06:54:48.412 INFO [stdout] 066e2651ef1cb5885d971a1398513398eb01cbd19935062a2e76feff58b9e721
Dec 11 06:54:48.415 INFO running `"docker" "start" "-a" "066e2651ef1cb5885d971a1398513398eb01cbd19935062a2e76feff58b9e721"`
Dec 11 06:54:50.304 INFO [stderr] usermod: no changes
Dec 11 06:54:50.508 INFO [stderr]     Checking serde v1.0.33
Dec 11 06:54:50.508 INFO [stderr]     Checking num-traits v0.2.1
Dec 11 06:54:50.508 INFO [stderr]    Compiling serde_derive_internals v0.21.0
Dec 11 06:54:55.832 INFO [stderr]    Compiling serde_derive v1.0.33
Dec 11 06:55:07.272 INFO [stderr]     Checking serde_json v1.0.11
Dec 11 06:55:09.743 INFO [stderr]     Checking flappybird v0.1.0 (/source)
Dec 11 06:55:11.836 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.49s
Dec 11 06:55:11.851 INFO [stderr] su: No module specific data is present
Dec 11 06:55:12.480 INFO running `"docker" "inspect" "066e2651ef1cb5885d971a1398513398eb01cbd19935062a2e76feff58b9e721"`
Dec 11 06:55:12.828 INFO running `"docker" "rm" "-f" "066e2651ef1cb5885d971a1398513398eb01cbd19935062a2e76feff58b9e721"`
Dec 11 06:55:13.200 INFO [stdout] 066e2651ef1cb5885d971a1398513398eb01cbd19935062a2e76feff58b9e721