Nov 29 15:42:36.713 INFO checking uxnow/flappybird against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 29 15:42:36.713 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-3/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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"`
Nov 29 15:42:37.258 INFO [stdout] 56296028becba9df4cfd1c728968f8634e6c88f7af98ff76721dba2f6c9c3e3a
Nov 29 15:42:37.263 INFO running `"docker" "start" "-a" "56296028becba9df4cfd1c728968f8634e6c88f7af98ff76721dba2f6c9c3e3a"`
Nov 29 15:42:38.612 INFO [stderr] usermod: no changes
Nov 29 15:42:38.784 INFO [stderr]     Checking num-traits v0.2.1
Nov 29 15:42:38.788 INFO [stderr]    Compiling serde_derive_internals v0.21.0
Nov 29 15:42:40.504 INFO [stderr]     Checking serde_json v1.0.11
Nov 29 15:42:43.432 INFO [stderr]    Compiling serde_derive v1.0.33
Nov 29 15:42:53.564 INFO [stderr]     Checking flappybird v0.1.0 (/source)
Nov 29 15:42:55.652 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.00s
Nov 29 15:42:55.660 INFO [stderr] su: No module specific data is present
Nov 29 15:42:56.713 INFO running `"docker" "inspect" "56296028becba9df4cfd1c728968f8634e6c88f7af98ff76721dba2f6c9c3e3a"`
Nov 29 15:42:57.006 INFO running `"docker" "rm" "-f" "56296028becba9df4cfd1c728968f8634e6c88f7af98ff76721dba2f6c9c3e3a"`
Nov 29 15:42:57.344 INFO [stdout] 56296028becba9df4cfd1c728968f8634e6c88f7af98ff76721dba2f6c9c3e3a