Nov 01 19:01:02.137 INFO checking optional_struct-0.2.0 against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 19:01:02.137 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-2/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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 19:01:02.458 INFO blam! e10a1301b2cdfbfbe6d9189c4bb519593b000436fb323780c1ba161bc2624d51
Nov 01 19:01:02.472 INFO running `"docker" "start" "-a" "e10a1301b2cdfbfbe6d9189c4bb519593b000436fb323780c1ba161bc2624d51"`
Nov 01 19:01:03.252 INFO kablam! usermod: no changes
Nov 01 19:01:03.299 INFO kablam!    Compiling optional_struct v0.2.0 (/source)
Nov 01 19:01:11.128 INFO kablam! warning: struct is never constructed: `Config`
Nov 01 19:01:11.128 INFO kablam!  --> tests/empty.rs:5:1
Nov 01 19:01:11.128 INFO kablam!   |
Nov 01 19:01:11.128 INFO kablam! 5 | struct Config {
Nov 01 19:01:11.128 INFO kablam!   | ^^^^^^^^^^^^^
Nov 01 19:01:11.128 INFO kablam!   |
Nov 01 19:01:11.128 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 01 19:01:11.128 INFO kablam! 
Nov 01 19:01:11.156 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 7.88s
Nov 01 19:01:11.164 INFO kablam! su: No module specific data is present
Nov 01 19:01:11.777 INFO running `"docker" "rm" "-f" "e10a1301b2cdfbfbe6d9189c4bb519593b000436fb323780c1ba161bc2624d51"`
Nov 01 19:01:12.004 INFO blam! e10a1301b2cdfbfbe6d9189c4bb519593b000436fb323780c1ba161bc2624d51