Dec 04 20:08:32.743 INFO checking davidarmstronglewis/dingus against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 20:08:32.743 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 04 20:08:33.216 INFO [stdout] af7b421689b54fa9f0f9888e608240dcbcd9486ed858479a7de8db34e52444ea
Dec 04 20:08:33.218 INFO running `"docker" "start" "-a" "af7b421689b54fa9f0f9888e608240dcbcd9486ed858479a7de8db34e52444ea"`
Dec 04 20:08:34.991 INFO [stderr] usermod: no changes
Dec 04 20:08:35.215 INFO [stderr]    Compiling syn v0.15.18
Dec 04 20:08:46.543 INFO [stderr]    Compiling synstructure v0.10.1
Dec 04 20:08:46.544 INFO [stderr]    Compiling serde_derive v1.0.80
Dec 04 20:08:51.067 INFO [stderr]    Compiling failure_derive v0.1.3
Dec 04 20:08:54.900 INFO [stderr]     Checking failure v0.1.3
Dec 04 20:09:04.987 INFO [stderr]     Checking dingus v0.5.6 (/source)
Dec 04 20:09:07.600 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.58s
Dec 04 20:09:07.606 INFO [stderr] su: No module specific data is present
Dec 04 20:09:08.975 INFO running `"docker" "inspect" "af7b421689b54fa9f0f9888e608240dcbcd9486ed858479a7de8db34e52444ea"`
Dec 04 20:09:09.193 INFO running `"docker" "rm" "-f" "af7b421689b54fa9f0f9888e608240dcbcd9486ed858479a7de8db34e52444ea"`
Dec 04 20:09:09.443 INFO [stdout] af7b421689b54fa9f0f9888e608240dcbcd9486ed858479a7de8db34e52444ea