Dec 12 15:39:48.243 INFO checking dual-0.2.0 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 15:39:48.243 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 15:39:48.596 INFO [stdout] f9bae1cf1cd3c38c5fc61a76e17906e7178143091ab9562e24cf81b333cea160
Dec 12 15:39:48.608 INFO running `"docker" "start" "-a" "f9bae1cf1cd3c38c5fc61a76e17906e7178143091ab9562e24cf81b333cea160"`
Dec 12 15:39:49.486 INFO [stderr] usermod: no changes
Dec 12 15:39:49.528 INFO [stderr] warning: path `/source/src/dual.rs` was erroneously implicitly accepted for library `dual`,
Dec 12 15:39:49.528 INFO [stderr] please rename the file to `src/lib.rs` or set lib.path in Cargo.toml
Dec 12 15:39:49.556 INFO [stderr]     Checking dual v0.2.0 (/source)
Dec 12 15:39:51.073 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.56s
Dec 12 15:39:51.075 INFO [stderr] su: No module specific data is present
Dec 12 15:39:51.486 INFO running `"docker" "inspect" "f9bae1cf1cd3c38c5fc61a76e17906e7178143091ab9562e24cf81b333cea160"`
Dec 12 15:39:51.645 INFO running `"docker" "rm" "-f" "f9bae1cf1cd3c38c5fc61a76e17906e7178143091ab9562e24cf81b333cea160"`
Dec 12 15:39:51.832 INFO [stdout] f9bae1cf1cd3c38c5fc61a76e17906e7178143091ab9562e24cf81b333cea160