Dec 11 16:02:15.647 INFO checking jsalzbergedu/Hello-Rust against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 16:02:15.647 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 11 16:02:16.117 INFO [stdout] 47e3f74d0608935a3d9ded55538aaba9904a427390dcfc881cf1539eda5c236d
Dec 11 16:02:16.124 INFO running `"docker" "start" "-a" "47e3f74d0608935a3d9ded55538aaba9904a427390dcfc881cf1539eda5c236d"`
Dec 11 16:02:17.580 INFO [stderr] usermod: no changes
Dec 11 16:02:17.793 INFO [stderr]     Checking hello_world v0.0.1 (/source)
Dec 11 16:02:18.280 INFO [stderr] warning: unused import: `std::env`
Dec 11 16:02:18.280 INFO [stderr]  --> src/main.rs:1:5
Dec 11 16:02:18.280 INFO [stderr]   |
Dec 11 16:02:18.280 INFO [stderr] 1 | use std::env; // cool as shizzle
Dec 11 16:02:18.280 INFO [stderr]   |     ^^^^^^^^
Dec 11 16:02:18.281 INFO [stderr]   |
Dec 11 16:02:18.281 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 16:02:18.281 INFO [stderr] 
Dec 11 16:02:18.306 INFO [stderr] warning: function is never used: `find`
Dec 11 16:02:18.307 INFO [stderr]  --> src/main.rs:3:1
Dec 11 16:02:18.307 INFO [stderr]   |
Dec 11 16:02:18.307 INFO [stderr] 3 | fn find(haystack: &str, needle: char) -> Option<usize> {
Dec 11 16:02:18.308 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:02:18.309 INFO [stderr]   |
Dec 11 16:02:18.309 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 16:02:18.309 INFO [stderr] 
Dec 11 16:02:18.310 INFO [stderr] warning: function is never used: `extension_explicit`
Dec 11 16:02:18.310 INFO [stderr]   --> src/main.rs:24:1
Dec 11 16:02:18.310 INFO [stderr]    |
Dec 11 16:02:18.310 INFO [stderr] 24 | fn extension_explicit(file_name: &str) -> Option<&str> { // Just an example, use std's extension for extensions
Dec 11 16:02:18.311 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:02:18.311 INFO [stderr] 
Dec 11 16:02:18.404 INFO [stderr] warning: unused import: `std::env`
Dec 11 16:02:18.404 INFO [stderr]  --> src/main.rs:1:5
Dec 11 16:02:18.408 INFO [stderr]   |
Dec 11 16:02:18.408 INFO [stderr] 1 | use std::env; // cool as shizzle
Dec 11 16:02:18.408 INFO [stderr]   |     ^^^^^^^^
Dec 11 16:02:18.408 INFO [stderr]   |
Dec 11 16:02:18.408 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 16:02:18.408 INFO [stderr] 
Dec 11 16:02:18.442 INFO [stderr] warning: function is never used: `find`
Dec 11 16:02:18.442 INFO [stderr]  --> src/main.rs:3:1
Dec 11 16:02:18.443 INFO [stderr]   |
Dec 11 16:02:18.443 INFO [stderr] 3 | fn find(haystack: &str, needle: char) -> Option<usize> {
Dec 11 16:02:18.443 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:02:18.443 INFO [stderr]   |
Dec 11 16:02:18.443 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 16:02:18.443 INFO [stderr] 
Dec 11 16:02:18.443 INFO [stderr] warning: function is never used: `extension_explicit`
Dec 11 16:02:18.443 INFO [stderr]   --> src/main.rs:24:1
Dec 11 16:02:18.443 INFO [stderr]    |
Dec 11 16:02:18.443 INFO [stderr] 24 | fn extension_explicit(file_name: &str) -> Option<&str> { // Just an example, use std's extension for extensions
Dec 11 16:02:18.443 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 16:02:18.443 INFO [stderr] 
Dec 11 16:02:18.469 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
Dec 11 16:02:18.474 INFO [stderr] su: No module specific data is present
Dec 11 16:02:19.487 INFO running `"docker" "inspect" "47e3f74d0608935a3d9ded55538aaba9904a427390dcfc881cf1539eda5c236d"`
Dec 11 16:02:19.864 INFO running `"docker" "rm" "-f" "47e3f74d0608935a3d9ded55538aaba9904a427390dcfc881cf1539eda5c236d"`
Dec 11 16:02:20.176 INFO [stdout] 47e3f74d0608935a3d9ded55538aaba9904a427390dcfc881cf1539eda5c236d