Oct 21 13:13:26.991 INFO checking taku-shimomura/building_vm against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192
Oct 21 13:13:26.991 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192/worker-4/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-55192/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/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 +155510e377ae2a8d8ee0dad1a5f809c9062a5526-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 21 13:13:27.468 INFO blam! 4e811eb360c0cd49fce573692fdba603025e6c310e8cc2d7a18746629c70cefd
Oct 21 13:13:27.473 INFO running `"docker" "start" "-a" "4e811eb360c0cd49fce573692fdba603025e6c310e8cc2d7a18746629c70cefd"`
Oct 21 13:13:28.600 INFO kablam! usermod: no changes
Oct 21 13:13:28.680 INFO kablam!     Checking building_vm v0.1.0 (/source)
Oct 21 13:13:29.129 INFO kablam! warning: field is never used: `registers`
Oct 21 13:13:29.129 INFO kablam!  --> src/vm.rs:2:5
Oct 21 13:13:29.129 INFO kablam!   |
Oct 21 13:13:29.129 INFO kablam! 2 |     registers: [i32; 32]
Oct 21 13:13:29.129 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Oct 21 13:13:29.129 INFO kablam!   |
Oct 21 13:13:29.129 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 21 13:13:29.129 INFO kablam! 
Oct 21 13:13:29.237 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
Oct 21 13:13:29.238 INFO kablam! su: No module specific data is present
Oct 21 13:13:30.384 INFO running `"docker" "rm" "-f" "4e811eb360c0cd49fce573692fdba603025e6c310e8cc2d7a18746629c70cefd"`
Oct 21 13:13:30.654 INFO blam! 4e811eb360c0cd49fce573692fdba603025e6c310e8cc2d7a18746629c70cefd