Oct 31 18:23:44.029 INFO checking walkerrandolphsmith/rust-data-structures against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Oct 31 18:23:44.029 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-0/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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"`
Oct 31 18:23:44.394 INFO blam! 4368c5106842e787e84d92854e8248e1cc1dee0821f886234e49332fcaf1ec68
Oct 31 18:23:44.395 INFO running `"docker" "start" "-a" "4368c5106842e787e84d92854e8248e1cc1dee0821f886234e49332fcaf1ec68"`
Oct 31 18:23:45.198 INFO kablam! usermod: no changes
Oct 31 18:23:45.234 INFO kablam!     Checking rust_data_structures v0.0.1 (/source)
Oct 31 18:23:45.624 INFO kablam! warning: function is never used: `should_add_two`
Oct 31 18:23:45.624 INFO kablam!  --> src/lib.rs:9:2
Oct 31 18:23:45.624 INFO kablam!   |
Oct 31 18:23:45.624 INFO kablam! 9 |     fn should_add_two() {
Oct 31 18:23:45.624 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^
Oct 31 18:23:45.632 INFO kablam!   |
Oct 31 18:23:45.632 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 31 18:23:45.632 INFO kablam! 
Oct 31 18:23:45.784 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
Oct 31 18:23:45.784 INFO kablam! su: No module specific data is present
Oct 31 18:23:46.520 INFO running `"docker" "rm" "-f" "4368c5106842e787e84d92854e8248e1cc1dee0821f886234e49332fcaf1ec68"`
Oct 31 18:23:46.680 INFO blam! 4368c5106842e787e84d92854e8248e1cc1dee0821f886234e49332fcaf1ec68