Nov 28 13:00:18.615 INFO checking Jarusk/kerrigan against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 13:00:18.616 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-1/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 28 13:00:18.948 INFO [stdout] 3a80261ec7445a7bae02d95f10e9f88afbe249766f2550eba12a4ea9a8d448b7
Nov 28 13:00:18.950 INFO running `"docker" "start" "-a" "3a80261ec7445a7bae02d95f10e9f88afbe249766f2550eba12a4ea9a8d448b7"`
Nov 28 13:00:19.660 INFO [stderr] usermod: no changes
Nov 28 13:00:19.715 INFO [stderr]     Checking kerrigan v0.1.0 (/source)
Nov 28 13:00:20.159 INFO [stderr] warning: unused import: `std::env`
Nov 28 13:00:20.159 INFO [stderr]  --> src/parseargs.rs:1:5
Nov 28 13:00:20.159 INFO [stderr]   |
Nov 28 13:00:20.159 INFO [stderr] 1 | use std::env;
Nov 28 13:00:20.160 INFO [stderr]   |     ^^^^^^^^
Nov 28 13:00:20.160 INFO [stderr]   |
Nov 28 13:00:20.160 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 13:00:20.160 INFO [stderr] 
Nov 28 13:00:20.174 INFO [stderr] warning: field is never used: `num_queens`
Nov 28 13:00:20.175 INFO [stderr]   --> src/parseargs.rs:10:5
Nov 28 13:00:20.175 INFO [stderr]    |
Nov 28 13:00:20.175 INFO [stderr] 10 |     num_queens: u8,
Nov 28 13:00:20.175 INFO [stderr]    |     ^^^^^^^^^^^^^^
Nov 28 13:00:20.175 INFO [stderr]    |
Nov 28 13:00:20.175 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 13:00:20.175 INFO [stderr] 
Nov 28 13:00:20.175 INFO [stderr] warning: field is never used: `num_threads`
Nov 28 13:00:20.175 INFO [stderr]   --> src/parseargs.rs:11:5
Nov 28 13:00:20.175 INFO [stderr]    |
Nov 28 13:00:20.175 INFO [stderr] 11 |     num_threads: u8,
Nov 28 13:00:20.175 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 28 13:00:20.175 INFO [stderr] 
Nov 28 13:00:20.268 INFO [stderr] warning: unused import: `std::env`
Nov 28 13:00:20.268 INFO [stderr]  --> src/parseargs.rs:1:5
Nov 28 13:00:20.268 INFO [stderr]   |
Nov 28 13:00:20.268 INFO [stderr] 1 | use std::env;
Nov 28 13:00:20.268 INFO [stderr]   |     ^^^^^^^^
Nov 28 13:00:20.268 INFO [stderr]   |
Nov 28 13:00:20.268 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 13:00:20.268 INFO [stderr] 
Nov 28 13:00:20.300 INFO [stderr] warning: field is never used: `num_queens`
Nov 28 13:00:20.300 INFO [stderr]   --> src/parseargs.rs:10:5
Nov 28 13:00:20.300 INFO [stderr]    |
Nov 28 13:00:20.300 INFO [stderr] 10 |     num_queens: u8,
Nov 28 13:00:20.300 INFO [stderr]    |     ^^^^^^^^^^^^^^
Nov 28 13:00:20.301 INFO [stderr]    |
Nov 28 13:00:20.301 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 13:00:20.301 INFO [stderr] 
Nov 28 13:00:20.301 INFO [stderr] warning: field is never used: `num_threads`
Nov 28 13:00:20.301 INFO [stderr]   --> src/parseargs.rs:11:5
Nov 28 13:00:20.302 INFO [stderr]    |
Nov 28 13:00:20.302 INFO [stderr] 11 |     num_threads: u8,
Nov 28 13:00:20.302 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 28 13:00:20.302 INFO [stderr] 
Nov 28 13:00:20.313 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
Nov 28 13:00:20.315 INFO [stderr] su: No module specific data is present
Nov 28 13:00:20.839 INFO running `"docker" "inspect" "3a80261ec7445a7bae02d95f10e9f88afbe249766f2550eba12a4ea9a8d448b7"`
Nov 28 13:00:20.956 INFO running `"docker" "rm" "-f" "3a80261ec7445a7bae02d95f10e9f88afbe249766f2550eba12a4ea9a8d448b7"`
Nov 28 13:00:21.116 INFO [stdout] 3a80261ec7445a7bae02d95f10e9f88afbe249766f2550eba12a4ea9a8d448b7