Dec 05 14:12:35.260 INFO checking engiffen-0.8.1 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 14:12:35.260 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 05 14:12:35.588 INFO [stdout] 89449335a774d0d1e35fd8d25fd08818c1ce27f47a2f3e7af04f3a057feabc4a
Dec 05 14:12:35.590 INFO running `"docker" "start" "-a" "89449335a774d0d1e35fd8d25fd08818c1ce27f47a2f3e7af04f3a057feabc4a"`
Dec 05 14:12:36.349 INFO [stderr] usermod: no changes
Dec 05 14:12:36.547 INFO [stderr]     Checking lab v0.4.4
Dec 05 14:12:36.575 INFO [stderr]     Checking rayon v0.7.1
Dec 05 14:12:36.575 INFO [stderr]     Checking png v0.7.0
Dec 05 14:12:39.878 INFO [stderr]     Checking image v0.13.0
Dec 05 14:12:45.358 INFO [stderr]     Checking engiffen v0.8.1 (/source)
Dec 05 14:12:52.571 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.19s
Dec 05 14:12:52.579 INFO [stderr] su: No module specific data is present
Dec 05 14:12:52.932 INFO running `"docker" "inspect" "89449335a774d0d1e35fd8d25fd08818c1ce27f47a2f3e7af04f3a057feabc4a"`
Dec 05 14:12:53.020 INFO running `"docker" "rm" "-f" "89449335a774d0d1e35fd8d25fd08818c1ce27f47a2f3e7af04f3a057feabc4a"`
Dec 05 14:12:53.123 INFO [stdout] 89449335a774d0d1e35fd8d25fd08818c1ce27f47a2f3e7af04f3a057feabc4a