Dec 06 15:45:59.536 INFO testing AnthonyBroadCrawford/rust-koans against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 06 15:45:59.536 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt build --frozen" "-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 06 15:45:59.724 INFO [stdout] 80a7dcd85995f7eb06ac7d9c0921142b3e14c8cc672f06e9db70a71fbe965bc4
Dec 06 15:45:59.726 INFO running `"docker" "start" "-a" "80a7dcd85995f7eb06ac7d9c0921142b3e14c8cc672f06e9db70a71fbe965bc4"`
Dec 06 15:46:00.140 INFO [stderr] usermod: no changes
Dec 06 15:46:00.167 INFO [stderr]    Compiling rust-koans v0.1.0 (/source)
Dec 06 15:46:00.565 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
Dec 06 15:46:00.567 INFO [stderr] su: No module specific data is present
Dec 06 15:46:00.814 INFO running `"docker" "inspect" "80a7dcd85995f7eb06ac7d9c0921142b3e14c8cc672f06e9db70a71fbe965bc4"`
Dec 06 15:46:00.894 INFO running `"docker" "rm" "-f" "80a7dcd85995f7eb06ac7d9c0921142b3e14c8cc672f06e9db70a71fbe965bc4"`
Dec 06 15:46:00.988 INFO [stdout] 80a7dcd85995f7eb06ac7d9c0921142b3e14c8cc672f06e9db70a71fbe965bc4
Dec 06 15:46:00.990 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt test --frozen --no-run" "-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 06 15:46:01.147 INFO [stdout] 50d1eb070b565f3316a95bebd70d1479faa2ce2b7b502db9cb7647e2ccb736b3
Dec 06 15:46:01.149 INFO running `"docker" "start" "-a" "50d1eb070b565f3316a95bebd70d1479faa2ce2b7b502db9cb7647e2ccb736b3"`
Dec 06 15:46:01.938 INFO [stderr] usermod: no changes
Dec 06 15:46:01.996 INFO [stderr]    Compiling rust-koans v0.1.0 (/source)
Dec 06 15:46:02.468 INFO [stderr] warning: function is never used: `add_two`
Dec 06 15:46:02.468 INFO [stderr]  --> tests/about_documentation.rs:8:1
Dec 06 15:46:02.468 INFO [stderr]   |
Dec 06 15:46:02.468 INFO [stderr] 8 | fn add_two(to_be_added_to: i32) -> i32{
Dec 06 15:46:02.468 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 15:46:02.468 INFO [stderr]   |
Dec 06 15:46:02.468 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 06 15:46:02.468 INFO [stderr] 
Dec 06 15:46:02.653 INFO [stderr] warning: function is never used: `add_two`
Dec 06 15:46:02.653 INFO [stderr]  --> tests/about_documentation.rs:8:1
Dec 06 15:46:02.653 INFO [stderr]   |
Dec 06 15:46:02.653 INFO [stderr] 8 | fn add_two(to_be_added_to: i32) -> i32{
Dec 06 15:46:02.653 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 15:46:02.653 INFO [stderr]   |
Dec 06 15:46:02.653 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 06 15:46:02.653 INFO [stderr] 
Dec 06 15:46:03.126 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
Dec 06 15:46:03.132 INFO [stderr] su: No module specific data is present
Dec 06 15:46:03.370 INFO running `"docker" "inspect" "50d1eb070b565f3316a95bebd70d1479faa2ce2b7b502db9cb7647e2ccb736b3"`
Dec 06 15:46:03.461 INFO running `"docker" "rm" "-f" "50d1eb070b565f3316a95bebd70d1479faa2ce2b7b502db9cb7647e2ccb736b3"`
Dec 06 15:46:03.558 INFO [stdout] 50d1eb070b565f3316a95bebd70d1479faa2ce2b7b502db9cb7647e2ccb736b3