Dec 12 05:40:54.033 INFO checking twiggy-traits-0.3.0 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 05:40:54.033 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 05:40:54.497 INFO [stdout] f4f683f38f3aa5b63b58b38fb6f8e380607cc32edb4729fb107db6dfc2ca8e05
Dec 12 05:40:54.504 INFO running `"docker" "start" "-a" "f4f683f38f3aa5b63b58b38fb6f8e380607cc32edb4729fb107db6dfc2ca8e05"`
Dec 12 05:40:56.186 INFO [stderr] usermod: no changes
Dec 12 05:40:56.380 INFO [stderr]     Checking frozen v1.0.0
Dec 12 05:40:56.383 INFO [stderr]     Checking stable_deref_trait v1.1.1
Dec 12 05:40:56.390 INFO [stderr]     Checking fallible-iterator v0.1.6
Dec 12 05:40:56.390 INFO [stderr]    Compiling cpp_demangle v0.2.12
Dec 12 05:40:56.390 INFO [stderr]     Checking parity-wasm v0.32.0
Dec 12 05:40:59.952 INFO [stderr]     Checking gimli v0.16.1
Dec 12 05:41:07.645 INFO [stderr]     Checking twiggy-ir v0.3.0
Dec 12 05:41:10.156 INFO [stderr]     Checking twiggy-traits v0.3.0 (/source)
Dec 12 05:41:13.528 INFO [stderr] warning: unused variable: `items`
Dec 12 05:41:13.529 INFO [stderr]    --> traits.rs:197:9
Dec 12 05:41:13.529 INFO [stderr]     |
Dec 12 05:41:13.529 INFO [stderr] 197 |         items: &ir::Items,
Dec 12 05:41:13.530 INFO [stderr]     |         ^^^^^ help: consider using `_items` instead
Dec 12 05:41:13.530 INFO [stderr]     |
Dec 12 05:41:13.530 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 12 05:41:13.530 INFO [stderr] 
Dec 12 05:41:13.531 INFO [stderr] warning: unused variable: `destination`
Dec 12 05:41:13.531 INFO [stderr]    --> traits.rs:198:9
Dec 12 05:41:13.531 INFO [stderr]     |
Dec 12 05:41:13.531 INFO [stderr] 198 |         destination: &mut io::Write,
Dec 12 05:41:13.532 INFO [stderr]     |         ^^^^^^^^^^^ help: consider using `_destination` instead
Dec 12 05:41:13.532 INFO [stderr] 
Dec 12 05:41:13.683 INFO [stderr] warning: unused variable: `items`
Dec 12 05:41:13.683 INFO [stderr]    --> traits.rs:197:9
Dec 12 05:41:13.683 INFO [stderr]     |
Dec 12 05:41:13.683 INFO [stderr] 197 |         items: &ir::Items,
Dec 12 05:41:13.683 INFO [stderr]     |         ^^^^^ help: consider using `_items` instead
Dec 12 05:41:13.683 INFO [stderr]     |
Dec 12 05:41:13.688 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 12 05:41:13.688 INFO [stderr] 
Dec 12 05:41:13.688 INFO [stderr] warning: unused variable: `destination`
Dec 12 05:41:13.688 INFO [stderr]    --> traits.rs:198:9
Dec 12 05:41:13.688 INFO [stderr]     |
Dec 12 05:41:13.689 INFO [stderr] 198 |         destination: &mut io::Write,
Dec 12 05:41:13.689 INFO [stderr]     |         ^^^^^^^^^^^ help: consider using `_destination` instead
Dec 12 05:41:13.689 INFO [stderr] 
Dec 12 05:41:13.789 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.58s
Dec 12 05:41:13.797 INFO [stderr] su: No module specific data is present
Dec 12 05:41:15.176 INFO running `"docker" "inspect" "f4f683f38f3aa5b63b58b38fb6f8e380607cc32edb4729fb107db6dfc2ca8e05"`
Dec 12 05:41:15.386 INFO running `"docker" "rm" "-f" "f4f683f38f3aa5b63b58b38fb6f8e380607cc32edb4729fb107db6dfc2ca8e05"`
Dec 12 05:41:15.750 INFO [stdout] f4f683f38f3aa5b63b58b38fb6f8e380607cc32edb4729fb107db6dfc2ca8e05