Nov 04 02:20:27.286 INFO checking mtraina/rust-by-example against master#2ad8c7b3502616aff142a4640cce911c6c2c5463 for pr-55655
Nov 04 02:20:27.287 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55655/worker-7/master#2ad8c7b3502616aff142a4640cce911c6c2c5463:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55655/master#2ad8c7b3502616aff142a4640cce911c6c2c5463:/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 +2ad8c7b3502616aff142a4640cce911c6c2c5463-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"`
Nov 04 02:20:27.719 INFO blam! 2628adb78cca32348ac7d175276d23474030af0972bd862438109a9b127c40b2
Nov 04 02:20:27.727 INFO running `"docker" "start" "-a" "2628adb78cca32348ac7d175276d23474030af0972bd862438109a9b127c40b2"`
Nov 04 02:20:29.547 INFO kablam! usermod: no changes
Nov 04 02:20:29.547 INFO kablam!     Checking rust_by_example v0.1.0 (/source)
Nov 04 02:20:30.295 INFO kablam! warning: struct is never constructed: `Structure`
Nov 04 02:20:30.295 INFO kablam!   --> examples/1_2_formatted_print.rs:34:5
Nov 04 02:20:30.295 INFO kablam!    |
Nov 04 02:20:30.295 INFO kablam! 34 |     struct Structure(i32);
Nov 04 02:20:30.295 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^
Nov 04 02:20:30.295 INFO kablam!    |
Nov 04 02:20:30.295 INFO kablam!    = note: #[warn(dead_code)] on by default
Nov 04 02:20:30.295 INFO kablam! 
Nov 04 02:20:30.443 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
Nov 04 02:20:30.443 INFO kablam! su: No module specific data is present
Nov 04 02:20:31.407 INFO running `"docker" "rm" "-f" "2628adb78cca32348ac7d175276d23474030af0972bd862438109a9b127c40b2"`
Nov 04 02:20:31.799 INFO blam! 2628adb78cca32348ac7d175276d23474030af0972bd862438109a9b127c40b2