Nov 01 02:28:20.901 INFO checking khuey/rustc-1.18-regression against master#05812fa8c588473f03e3fa7cf59cd84f4f37c715 for pr-55538
Nov 01 02:28:20.901 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-0/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 02:28:21.340 INFO blam! d049032d65ef5e8dbfdc0143be61319b82b65ef2a470201870d12cd434d3d617
Nov 01 02:28:21.342 INFO running `"docker" "start" "-a" "d049032d65ef5e8dbfdc0143be61319b82b65ef2a470201870d12cd434d3d617"`
Nov 01 02:28:22.653 INFO kablam! usermod: no changes
Nov 01 02:28:22.744 INFO kablam!     Checking regression v0.1.0 (/source)
Nov 01 02:28:23.324 INFO kablam! warning: function is never used: `main`
Nov 01 02:28:23.324 INFO kablam!  --> src/lib.rs:8:1
Nov 01 02:28:23.324 INFO kablam!   |
Nov 01 02:28:23.324 INFO kablam! 8 | fn main() {
Nov 01 02:28:23.324 INFO kablam!   | ^^^^^^^^^
Nov 01 02:28:23.324 INFO kablam!   |
Nov 01 02:28:23.324 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 01 02:28:23.324 INFO kablam! 
Nov 01 02:28:23.386 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
Nov 01 02:28:23.387 INFO kablam! su: No module specific data is present
Nov 01 02:28:23.908 INFO running `"docker" "rm" "-f" "d049032d65ef5e8dbfdc0143be61319b82b65ef2a470201870d12cd434d3d617"`
Nov 01 02:28:24.168 INFO blam! d049032d65ef5e8dbfdc0143be61319b82b65ef2a470201870d12cd434d3d617