Dec 12 03:55:46.093 INFO checking AnthonyBroadCrawford/rust-koans against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 03:55:46.094 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 12 03:55:46.404 INFO [stdout] 716fcf6f2a88bc7ae5240228ff6d5dd2cab5b8256effefe9e17c4c2a3a1f3030
Dec 12 03:55:46.405 INFO running `"docker" "start" "-a" "716fcf6f2a88bc7ae5240228ff6d5dd2cab5b8256effefe9e17c4c2a3a1f3030"`
Dec 12 03:55:46.971 INFO [stderr] usermod: no changes
Dec 12 03:55:47.000 INFO [stderr]     Checking rust-koans v0.1.0 (/source)
Dec 12 03:55:47.652 INFO [stderr] warning: function is never used: `add_two`
Dec 12 03:55:47.652 INFO [stderr]  --> tests/about_documentation.rs:8:1
Dec 12 03:55:47.652 INFO [stderr]   |
Dec 12 03:55:47.652 INFO [stderr] 8 | fn add_two(to_be_added_to: i32) -> i32{
Dec 12 03:55:47.652 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 03:55:47.652 INFO [stderr]   |
Dec 12 03:55:47.652 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 03:55:47.652 INFO [stderr] 
Dec 12 03:55:47.733 INFO [stderr] warning: function is never used: `add_two`
Dec 12 03:55:47.733 INFO [stderr]  --> tests/about_documentation.rs:8:1
Dec 12 03:55:47.733 INFO [stderr]   |
Dec 12 03:55:47.733 INFO [stderr] 8 | fn add_two(to_be_added_to: i32) -> i32{
Dec 12 03:55:47.733 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 03:55:47.733 INFO [stderr]   |
Dec 12 03:55:47.733 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 03:55:47.733 INFO [stderr] 
Dec 12 03:55:47.821 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
Dec 12 03:55:47.823 INFO [stderr] su: No module specific data is present
Dec 12 03:55:48.336 INFO running `"docker" "inspect" "716fcf6f2a88bc7ae5240228ff6d5dd2cab5b8256effefe9e17c4c2a3a1f3030"`
Dec 12 03:55:48.658 INFO running `"docker" "rm" "-f" "716fcf6f2a88bc7ae5240228ff6d5dd2cab5b8256effefe9e17c4c2a3a1f3030"`
Dec 12 03:55:48.808 INFO [stdout] 716fcf6f2a88bc7ae5240228ff6d5dd2cab5b8256effefe9e17c4c2a3a1f3030