Dec 12 09:15:53.258 INFO checking ref-cast-0.2.4 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 09:15:53.258 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 12 09:15:53.391 INFO [stdout] f193c6d4b9277747cfb0eca05fc15b5fd087d4b09fb9adb99920413a92fda0c3
Dec 12 09:15:53.392 INFO running `"docker" "start" "-a" "f193c6d4b9277747cfb0eca05fc15b5fd087d4b09fb9adb99920413a92fda0c3"`
Dec 12 09:15:53.832 INFO [stderr] usermod: no changes
Dec 12 09:15:53.892 INFO [stderr]    Compiling proc-macro2 v0.4.24
Dec 12 09:15:55.693 INFO [stderr]    Compiling quote v0.6.10
Dec 12 09:15:56.569 INFO [stderr]    Compiling syn v0.15.22
Dec 12 09:16:03.645 INFO [stderr]    Compiling ref-cast-impl v0.2.4
Dec 12 09:16:05.536 INFO [stderr]     Checking ref-cast v0.2.4 (/source)
Dec 12 09:16:06.557 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.70s
Dec 12 09:16:06.560 INFO [stderr] su: No module specific data is present
Dec 12 09:16:07.773 INFO running `"docker" "inspect" "f193c6d4b9277747cfb0eca05fc15b5fd087d4b09fb9adb99920413a92fda0c3"`
Dec 12 09:16:08.127 INFO running `"docker" "rm" "-f" "f193c6d4b9277747cfb0eca05fc15b5fd087d4b09fb9adb99920413a92fda0c3"`
Dec 12 09:16:08.424 INFO [stdout] f193c6d4b9277747cfb0eca05fc15b5fd087d4b09fb9adb99920413a92fda0c3