Dec 05 03:00:43.772 INFO checking CodeGradox/mandelbrot against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 03:00:43.772 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 05 03:00:44.233 INFO [stdout] dc994a643b09ef8d5e6832240dfcb43044f989a33aab9b6f70e6ab79aa6121e0
Dec 05 03:00:44.237 INFO running `"docker" "start" "-a" "dc994a643b09ef8d5e6832240dfcb43044f989a33aab9b6f70e6ab79aa6121e0"`
Dec 05 03:00:45.128 INFO [stderr] usermod: no changes
Dec 05 03:00:45.281 INFO [stderr]    Compiling syn v0.15.18
Dec 05 03:00:51.559 INFO [stderr]    Compiling num-derive v0.2.3
Dec 05 03:00:57.633 INFO [stderr]     Checking tiff v0.2.1
Dec 05 03:00:58.964 INFO [stderr]     Checking image v0.20.1
Dec 05 03:01:06.087 INFO [stderr]     Checking mandelbrot v0.1.0 (/source)
Dec 05 03:01:08.995 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.85s
Dec 05 03:01:09.001 INFO [stderr] su: No module specific data is present
Dec 05 03:01:09.685 INFO running `"docker" "inspect" "dc994a643b09ef8d5e6832240dfcb43044f989a33aab9b6f70e6ab79aa6121e0"`
Dec 05 03:01:09.903 INFO running `"docker" "rm" "-f" "dc994a643b09ef8d5e6832240dfcb43044f989a33aab9b6f70e6ab79aa6121e0"`
Dec 05 03:01:10.091 INFO [stdout] dc994a643b09ef8d5e6832240dfcb43044f989a33aab9b6f70e6ab79aa6121e0