Dec 05 08:53:34.809 INFO checking problem-0.1.0 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 08:53:34.810 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 08:53:35.007 INFO [stdout] a5e922e7ab29cc67bb6b7dbc2c49b5b93c86a3e359dbe97f7e72b6ec04eab70b
Dec 05 08:53:35.007 INFO running `"docker" "start" "-a" "a5e922e7ab29cc67bb6b7dbc2c49b5b93c86a3e359dbe97f7e72b6ec04eab70b"`
Dec 05 08:53:35.470 INFO [stderr] usermod: no changes
Dec 05 08:53:35.589 INFO [stderr]     Checking pulldown-cmark v0.2.0
Dec 05 08:53:35.593 INFO [stderr]     Checking cargo_metadata v0.6.3
Dec 05 08:53:35.593 INFO [stderr]    Compiling problem v0.1.0 (/source)
Dec 05 08:53:38.936 INFO [stderr]     Checking skeptic v0.13.4
Dec 05 08:53:44.259 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.77s
Dec 05 08:53:44.265 INFO [stderr] su: No module specific data is present
Dec 05 08:53:45.166 INFO running `"docker" "inspect" "a5e922e7ab29cc67bb6b7dbc2c49b5b93c86a3e359dbe97f7e72b6ec04eab70b"`
Dec 05 08:53:45.285 INFO running `"docker" "rm" "-f" "a5e922e7ab29cc67bb6b7dbc2c49b5b93c86a3e359dbe97f7e72b6ec04eab70b"`
Dec 05 08:53:45.397 INFO [stdout] a5e922e7ab29cc67bb6b7dbc2c49b5b93c86a3e359dbe97f7e72b6ec04eab70b