Nov 01 19:01:02.142 INFO checking optional_struct-0.2.0 against master#05812fa8c588473f03e3fa7cf59cd84f4f37c715 for pr-55538
Nov 01 19:01:02.142 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-5/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55538/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/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 +05812fa8c588473f03e3fa7cf59cd84f4f37c715-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 01 19:01:02.401 INFO blam! b41bc9b4dba90ce01fa7d7ddb2b020552d5a529c7cceae6469480b8015e21ee4
Nov 01 19:01:02.406 INFO running `"docker" "start" "-a" "b41bc9b4dba90ce01fa7d7ddb2b020552d5a529c7cceae6469480b8015e21ee4"`
Nov 01 19:01:03.128 INFO kablam! usermod: no changes
Nov 01 19:01:03.172 INFO kablam!    Compiling optional_struct v0.2.0 (/source)
Nov 01 19:01:09.495 INFO kablam! warning: struct is never constructed: `Config`
Nov 01 19:01:09.495 INFO kablam!  --> tests/empty.rs:5:1
Nov 01 19:01:09.495 INFO kablam!   |
Nov 01 19:01:09.495 INFO kablam! 5 | struct Config {
Nov 01 19:01:09.495 INFO kablam!   | ^^^^^^^^^^^^^
Nov 01 19:01:09.495 INFO kablam!   |
Nov 01 19:01:09.495 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 01 19:01:09.495 INFO kablam! 
Nov 01 19:01:09.519 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 6.37s
Nov 01 19:01:09.554 INFO kablam! su: No module specific data is present
Nov 01 19:01:10.242 INFO running `"docker" "rm" "-f" "b41bc9b4dba90ce01fa7d7ddb2b020552d5a529c7cceae6469480b8015e21ee4"`
Nov 01 19:01:10.584 INFO blam! b41bc9b4dba90ce01fa7d7ddb2b020552d5a529c7cceae6469480b8015e21ee4