Dec 02 09:28:04.783 INFO testing AnthonyBroadCrawford/rust-koans against 1.30.1 for beta-1.31-5
Dec 02 09:28:04.783 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/beta-1.31-5/1.30.1:/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 +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 09:28:04.962 INFO [stdout] 5367ee88c361be112515339791193083a11d80b5be85c1033e9c9e17dc62674d
Dec 02 09:28:04.964 INFO running `"docker" "start" "-a" "5367ee88c361be112515339791193083a11d80b5be85c1033e9c9e17dc62674d"`
Dec 02 09:28:05.568 INFO [stderr] usermod: no changes
Dec 02 09:28:05.603 INFO [stderr]    Compiling rust-koans v0.1.0 (/source)
Dec 02 09:28:06.267 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
Dec 02 09:28:06.271 INFO [stderr] su: No module specific data is present
Dec 02 09:28:06.584 INFO running `"docker" "inspect" "5367ee88c361be112515339791193083a11d80b5be85c1033e9c9e17dc62674d"`
Dec 02 09:28:06.662 INFO running `"docker" "rm" "-f" "5367ee88c361be112515339791193083a11d80b5be85c1033e9c9e17dc62674d"`
Dec 02 09:28:06.742 INFO [stdout] 5367ee88c361be112515339791193083a11d80b5be85c1033e9c9e17dc62674d
Dec 02 09:28:06.744 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/beta-1.31-5/1.30.1:/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 +1.30.1 test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 09:28:06.956 INFO [stdout] c1f84dc2651e4fcab72bc33f10e37a7a7c9a191c5c5adc381a7e57fff279583b
Dec 02 09:28:06.960 INFO running `"docker" "start" "-a" "c1f84dc2651e4fcab72bc33f10e37a7a7c9a191c5c5adc381a7e57fff279583b"`
Dec 02 09:28:07.539 INFO [stderr] usermod: no changes
Dec 02 09:28:07.591 INFO [stderr]    Compiling rust-koans v0.1.0 (/source)
Dec 02 09:28:08.918 INFO [stderr] warning: function is never used: `add_two`
Dec 02 09:28:08.918 INFO [stderr]  --> tests/about_documentation.rs:8:1
Dec 02 09:28:08.918 INFO [stderr]   |
Dec 02 09:28:08.918 INFO [stderr] 8 | fn add_two(to_be_added_to: i32) -> i32{
Dec 02 09:28:08.918 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 09:28:08.918 INFO [stderr]   |
Dec 02 09:28:08.918 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 02 09:28:08.918 INFO [stderr] 
Dec 02 09:28:09.335 INFO [stderr] warning: function is never used: `add_two`
Dec 02 09:28:09.335 INFO [stderr]  --> tests/about_documentation.rs:8:1
Dec 02 09:28:09.335 INFO [stderr]   |
Dec 02 09:28:09.335 INFO [stderr] 8 | fn add_two(to_be_added_to: i32) -> i32{
Dec 02 09:28:09.335 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 09:28:09.335 INFO [stderr]   |
Dec 02 09:28:09.335 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 02 09:28:09.335 INFO [stderr] 
Dec 02 09:28:10.021 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.45s
Dec 02 09:28:10.024 INFO [stderr] su: No module specific data is present
Dec 02 09:28:10.327 INFO running `"docker" "inspect" "c1f84dc2651e4fcab72bc33f10e37a7a7c9a191c5c5adc381a7e57fff279583b"`
Dec 02 09:28:10.408 INFO running `"docker" "rm" "-f" "c1f84dc2651e4fcab72bc33f10e37a7a7c9a191c5c5adc381a7e57fff279583b"`
Dec 02 09:28:10.476 INFO [stdout] c1f84dc2651e4fcab72bc33f10e37a7a7c9a191c5c5adc381a7e57fff279583b
