Dec 13 14:57:25.111 INFO testing jsalzbergedu/Hello-Rust against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 14:57:25.111 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 14:57:25.471 INFO [stdout] e6cd6f0d061c020a2d8ce2fc009de9eb86469e239b184632fe7a79be118cc601
Dec 13 14:57:25.473 INFO running `"docker" "start" "-a" "e6cd6f0d061c020a2d8ce2fc009de9eb86469e239b184632fe7a79be118cc601"`
Dec 13 14:57:26.787 INFO [stderr] usermod: no changes
Dec 13 14:57:26.983 INFO [stderr]    Compiling hello_world v0.0.1 (/source)
Dec 13 14:57:27.394 INFO [stderr] warning: unused import: `std::env`
Dec 13 14:57:27.394 INFO [stderr]  --> src/main.rs:1:5
Dec 13 14:57:27.394 INFO [stderr]   |
Dec 13 14:57:27.394 INFO [stderr] 1 | use std::env; // cool as shizzle
Dec 13 14:57:27.394 INFO [stderr]   |     ^^^^^^^^
Dec 13 14:57:27.394 INFO [stderr]   |
Dec 13 14:57:27.394 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 14:57:27.394 INFO [stderr] 
Dec 13 14:57:27.422 INFO [stderr] warning: function is never used: `find`
Dec 13 14:57:27.422 INFO [stderr]  --> src/main.rs:3:1
Dec 13 14:57:27.422 INFO [stderr]   |
Dec 13 14:57:27.422 INFO [stderr] 3 | fn find(haystack: &str, needle: char) -> Option<usize> {
Dec 13 14:57:27.422 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 14:57:27.422 INFO [stderr]   |
Dec 13 14:57:27.422 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 13 14:57:27.422 INFO [stderr] 
Dec 13 14:57:27.422 INFO [stderr] warning: function is never used: `extension_explicit`
Dec 13 14:57:27.422 INFO [stderr]   --> src/main.rs:24:1
Dec 13 14:57:27.422 INFO [stderr]    |
Dec 13 14:57:27.423 INFO [stderr] 24 | fn extension_explicit(file_name: &str) -> Option<&str> { // Just an example, use std's extension for extensions
Dec 13 14:57:27.423 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 14:57:27.423 INFO [stderr] 
Dec 13 14:57:27.675 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
Dec 13 14:57:27.679 INFO [stderr] su: No module specific data is present
Dec 13 14:57:28.139 INFO running `"docker" "inspect" "e6cd6f0d061c020a2d8ce2fc009de9eb86469e239b184632fe7a79be118cc601"`
Dec 13 14:57:28.369 INFO running `"docker" "rm" "-f" "e6cd6f0d061c020a2d8ce2fc009de9eb86469e239b184632fe7a79be118cc601"`
Dec 13 14:57:28.606 INFO [stdout] e6cd6f0d061c020a2d8ce2fc009de9eb86469e239b184632fe7a79be118cc601
Dec 13 14:57:28.608 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 14:57:28.826 INFO [stdout] 891787ac1520047e343f280c9d38db2459ff187fe7f6c10df52bad583a595b66
Dec 13 14:57:28.828 INFO running `"docker" "start" "-a" "891787ac1520047e343f280c9d38db2459ff187fe7f6c10df52bad583a595b66"`
Dec 13 14:57:29.253 INFO [stderr] usermod: no changes
Dec 13 14:57:29.338 INFO [stderr]    Compiling hello_world v0.0.1 (/source)
Dec 13 14:57:29.612 INFO [stderr] warning: unused import: `std::env`
Dec 13 14:57:29.612 INFO [stderr]  --> src/main.rs:1:5
Dec 13 14:57:29.612 INFO [stderr]   |
Dec 13 14:57:29.612 INFO [stderr] 1 | use std::env; // cool as shizzle
Dec 13 14:57:29.612 INFO [stderr]   |     ^^^^^^^^
Dec 13 14:57:29.612 INFO [stderr]   |
Dec 13 14:57:29.612 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 14:57:29.612 INFO [stderr] 
Dec 13 14:57:29.679 INFO [stderr] warning: function is never used: `find`
Dec 13 14:57:29.679 INFO [stderr]  --> src/main.rs:3:1
Dec 13 14:57:29.679 INFO [stderr]   |
Dec 13 14:57:29.679 INFO [stderr] 3 | fn find(haystack: &str, needle: char) -> Option<usize> {
Dec 13 14:57:29.679 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 14:57:29.679 INFO [stderr]   |
Dec 13 14:57:29.679 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 13 14:57:29.679 INFO [stderr] 
Dec 13 14:57:29.679 INFO [stderr] warning: function is never used: `extension_explicit`
Dec 13 14:57:29.679 INFO [stderr]   --> src/main.rs:24:1
Dec 13 14:57:29.679 INFO [stderr]    |
Dec 13 14:57:29.679 INFO [stderr] 24 | fn extension_explicit(file_name: &str) -> Option<&str> { // Just an example, use std's extension for extensions
Dec 13 14:57:29.679 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 14:57:29.679 INFO [stderr] 
Dec 13 14:57:29.827 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
Dec 13 14:57:29.877 INFO [stderr] su: No module specific data is present
Dec 13 14:57:30.269 INFO running `"docker" "inspect" "891787ac1520047e343f280c9d38db2459ff187fe7f6c10df52bad583a595b66"`
Dec 13 14:57:30.500 INFO running `"docker" "rm" "-f" "891787ac1520047e343f280c9d38db2459ff187fe7f6c10df52bad583a595b66"`
Dec 13 14:57:30.605 INFO [stdout] 891787ac1520047e343f280c9d38db2459ff187fe7f6c10df52bad583a595b66
Dec 13 14:57:30.605 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --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 13 14:57:30.922 INFO [stdout] fd448735053153478bd2933408d2be92532174281e1ba066aa1d9e3154f465a5
Dec 13 14:57:30.922 INFO running `"docker" "start" "-a" "fd448735053153478bd2933408d2be92532174281e1ba066aa1d9e3154f465a5"`
Dec 13 14:57:31.587 INFO [stderr] usermod: no changes
Dec 13 14:57:31.691 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
Dec 13 14:57:31.691 INFO [stderr]      Running /target/debug/deps/hello_world-b5e5c971ed80a7f2
Dec 13 14:57:31.691 INFO [stderr] su: No module specific data is present
Dec 13 14:57:31.692 INFO [stdout] 
Dec 13 14:57:31.692 INFO [stdout] running 0 tests
Dec 13 14:57:31.692 INFO [stdout] 
Dec 13 14:57:31.692 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 14:57:31.692 INFO [stdout] 
Dec 13 14:57:32.010 INFO running `"docker" "inspect" "fd448735053153478bd2933408d2be92532174281e1ba066aa1d9e3154f465a5"`
Dec 13 14:57:32.100 INFO running `"docker" "rm" "-f" "fd448735053153478bd2933408d2be92532174281e1ba066aa1d9e3154f465a5"`
Dec 13 14:57:32.187 INFO [stdout] fd448735053153478bd2933408d2be92532174281e1ba066aa1d9e3154f465a5