Dec 05 05:01:49.874 INFO checking twiggy-traits-0.3.0 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 05:01:49.874 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 05:01:50.427 INFO [stdout] 4c3dfe2d46a78964505a51d6ae9e66fd7986218c8779f6beeb26c87dcc00f40e
Dec 05 05:01:50.429 INFO running `"docker" "start" "-a" "4c3dfe2d46a78964505a51d6ae9e66fd7986218c8779f6beeb26c87dcc00f40e"`
Dec 05 05:01:52.562 INFO [stderr] usermod: no changes
Dec 05 05:01:53.075 INFO [stderr]     Checking fallible-iterator v0.1.5
Dec 05 05:01:53.075 INFO [stderr]     Checking frozen v1.0.0
Dec 05 05:01:53.081 INFO [stderr]    Compiling cpp_demangle v0.2.12
Dec 05 05:01:53.085 INFO [stderr]     Checking parity-wasm v0.32.0
Dec 05 05:01:55.128 INFO [stderr]     Checking gimli v0.16.1
Dec 05 05:02:03.803 INFO [stderr]     Checking twiggy-ir v0.3.0
Dec 05 05:02:05.132 INFO [stderr]     Checking twiggy-traits v0.3.0 (/source)
Dec 05 05:02:08.111 INFO [stderr] warning: unused variable: `items`
Dec 05 05:02:08.111 INFO [stderr]    --> traits.rs:197:9
Dec 05 05:02:08.111 INFO [stderr]     |
Dec 05 05:02:08.111 INFO [stderr] 197 |         items: &ir::Items,
Dec 05 05:02:08.111 INFO [stderr]     |         ^^^^^ help: consider using `_items` instead
Dec 05 05:02:08.111 INFO [stderr]     |
Dec 05 05:02:08.111 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 05 05:02:08.111 INFO [stderr] 
Dec 05 05:02:08.111 INFO [stderr] warning: unused variable: `destination`
Dec 05 05:02:08.111 INFO [stderr]    --> traits.rs:198:9
Dec 05 05:02:08.111 INFO [stderr]     |
Dec 05 05:02:08.111 INFO [stderr] 198 |         destination: &mut io::Write,
Dec 05 05:02:08.111 INFO [stderr]     |         ^^^^^^^^^^^ help: consider using `_destination` instead
Dec 05 05:02:08.111 INFO [stderr] 
Dec 05 05:02:08.831 INFO [stderr] warning: unused variable: `items`
Dec 05 05:02:08.831 INFO [stderr]    --> traits.rs:197:9
Dec 05 05:02:08.831 INFO [stderr]     |
Dec 05 05:02:08.831 INFO [stderr] 197 |         items: &ir::Items,
Dec 05 05:02:08.831 INFO [stderr]     |         ^^^^^ help: consider using `_items` instead
Dec 05 05:02:08.831 INFO [stderr]     |
Dec 05 05:02:08.831 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 05 05:02:08.831 INFO [stderr] 
Dec 05 05:02:08.831 INFO [stderr] warning: unused variable: `destination`
Dec 05 05:02:08.831 INFO [stderr]    --> traits.rs:198:9
Dec 05 05:02:08.831 INFO [stderr]     |
Dec 05 05:02:08.831 INFO [stderr] 198 |         destination: &mut io::Write,
Dec 05 05:02:08.831 INFO [stderr]     |         ^^^^^^^^^^^ help: consider using `_destination` instead
Dec 05 05:02:08.831 INFO [stderr] 
Dec 05 05:02:08.964 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.38s
Dec 05 05:02:08.983 INFO [stderr] su: No module specific data is present
Dec 05 05:02:10.109 INFO running `"docker" "inspect" "4c3dfe2d46a78964505a51d6ae9e66fd7986218c8779f6beeb26c87dcc00f40e"`
Dec 05 05:02:10.517 INFO running `"docker" "rm" "-f" "4c3dfe2d46a78964505a51d6ae9e66fd7986218c8779f6beeb26c87dcc00f40e"`
Dec 05 05:02:10.847 INFO [stdout] 4c3dfe2d46a78964505a51d6ae9e66fd7986218c8779f6beeb26c87dcc00f40e