Dec 04 15:29:34.516 INFO checking ksakiyama/my_first_rust against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 15:29:34.517 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 15:29:34.927 INFO [stdout] c43cf21c9cec65da016c9acad0cdd7d9d25ecbf8dcbe4d826665b770eb3dc5f4
Dec 04 15:29:34.929 INFO running `"docker" "start" "-a" "c43cf21c9cec65da016c9acad0cdd7d9d25ecbf8dcbe4d826665b770eb3dc5f4"`
Dec 04 15:29:36.165 INFO [stderr] usermod: no changes
Dec 04 15:29:36.240 INFO [stderr]     Checking first_rust v0.1.0 (/source)
Dec 04 15:29:36.749 INFO [stderr] warning: function is never used: `read_from_file`
Dec 04 15:29:36.749 INFO [stderr]    --> src/main.rs:101:1
Dec 04 15:29:36.749 INFO [stderr]     |
Dec 04 15:29:36.749 INFO [stderr] 101 | fn read_from_file() -> Vec<Vec<i32>> {
Dec 04 15:29:36.749 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 15:29:36.749 INFO [stderr]     |
Dec 04 15:29:36.749 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 04 15:29:36.749 INFO [stderr] 
Dec 04 15:29:36.867 INFO [stderr] warning: function is never used: `read_from_file`
Dec 04 15:29:36.867 INFO [stderr]    --> src/main.rs:101:1
Dec 04 15:29:36.867 INFO [stderr]     |
Dec 04 15:29:36.867 INFO [stderr] 101 | fn read_from_file() -> Vec<Vec<i32>> {
Dec 04 15:29:36.867 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 15:29:36.867 INFO [stderr]     |
Dec 04 15:29:36.867 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 04 15:29:36.871 INFO [stderr] 
Dec 04 15:29:36.939 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
Dec 04 15:29:36.939 INFO [stderr] su: No module specific data is present
Dec 04 15:29:37.802 INFO running `"docker" "inspect" "c43cf21c9cec65da016c9acad0cdd7d9d25ecbf8dcbe4d826665b770eb3dc5f4"`
Dec 04 15:29:38.187 INFO running `"docker" "rm" "-f" "c43cf21c9cec65da016c9acad0cdd7d9d25ecbf8dcbe4d826665b770eb3dc5f4"`
Dec 04 15:29:38.535 INFO [stdout] c43cf21c9cec65da016c9acad0cdd7d9d25ecbf8dcbe4d826665b770eb3dc5f4