Dec 12 03:06:06.268 INFO checking Dynisious/tic_tac_toe against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 03:06:06.268 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 12 03:06:06.604 INFO [stdout] 8a7c4c4b9dda38a09ebad817e121f95943c778d9da34d29be7c22c10b0bc8bac
Dec 12 03:06:06.606 INFO running `"docker" "start" "-a" "8a7c4c4b9dda38a09ebad817e121f95943c778d9da34d29be7c22c10b0bc8bac"`
Dec 12 03:06:07.468 INFO [stderr] usermod: no changes
Dec 12 03:06:07.528 INFO [stderr]     Checking tic_tac_toe v0.1.0 (/source)
Dec 12 03:06:07.972 INFO [stderr] warning: unused import: `squares::*`
Dec 12 03:06:07.972 INFO [stderr]  --> src/main.rs:8:5
Dec 12 03:06:07.972 INFO [stderr]   |
Dec 12 03:06:07.972 INFO [stderr] 8 | use squares::*;
Dec 12 03:06:07.972 INFO [stderr]   |     ^^^^^^^^^^
Dec 12 03:06:07.972 INFO [stderr]   |
Dec 12 03:06:07.972 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 03:06:07.972 INFO [stderr] 
Dec 12 03:06:07.972 INFO [stderr] warning: unused import: `board::*`
Dec 12 03:06:07.972 INFO [stderr]  --> src/main.rs:9:5
Dec 12 03:06:07.972 INFO [stderr]   |
Dec 12 03:06:07.972 INFO [stderr] 9 | use board::*;
Dec 12 03:06:07.972 INFO [stderr]   |     ^^^^^^^^
Dec 12 03:06:07.972 INFO [stderr] 
Dec 12 03:06:07.972 INFO [stderr] warning: unused import: `Read`
Dec 12 03:06:07.972 INFO [stderr]   --> src/main.rs:12:15
Dec 12 03:06:07.972 INFO [stderr]    |
Dec 12 03:06:07.972 INFO [stderr] 12 | use std::io::{Read, Write};
Dec 12 03:06:07.972 INFO [stderr]    |               ^^^^
Dec 12 03:06:07.972 INFO [stderr] 
Dec 12 03:06:08.056 INFO [stderr] warning: type alias is never used: `Square`
Dec 12 03:06:08.056 INFO [stderr]  --> src/squares.rs:5:1
Dec 12 03:06:08.056 INFO [stderr]   |
Dec 12 03:06:08.056 INFO [stderr] 5 | pub type Square = Option<Mark>;
Dec 12 03:06:08.056 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 03:06:08.056 INFO [stderr]   |
Dec 12 03:06:08.056 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 03:06:08.056 INFO [stderr] 
Dec 12 03:06:08.056 INFO [stderr] warning: variant is never constructed: `X`
Dec 12 03:06:08.056 INFO [stderr]   --> src/squares.rs:10:5
Dec 12 03:06:08.056 INFO [stderr]    |
Dec 12 03:06:08.056 INFO [stderr] 10 |     X, O
Dec 12 03:06:08.056 INFO [stderr]    |     ^
Dec 12 03:06:08.056 INFO [stderr] 
Dec 12 03:06:08.056 INFO [stderr] warning: variant is never constructed: `O`
Dec 12 03:06:08.056 INFO [stderr]   --> src/squares.rs:10:8
Dec 12 03:06:08.056 INFO [stderr]    |
Dec 12 03:06:08.056 INFO [stderr] 10 |     X, O
Dec 12 03:06:08.056 INFO [stderr]    |        ^
Dec 12 03:06:08.056 INFO [stderr] 
Dec 12 03:06:08.056 INFO [stderr] warning: method is never used: `set_square`
Dec 12 03:06:08.056 INFO [stderr]   --> src/board.rs:26:5
Dec 12 03:06:08.056 INFO [stderr]    |
Dec 12 03:06:08.056 INFO [stderr] 26 |     pub fn set_square(&mut self, row: usize, column: usize, square: Square) {
Dec 12 03:06:08.056 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 03:06:08.056 INFO [stderr] 
Dec 12 03:06:08.056 INFO [stderr] warning: method is never used: `winner`
Dec 12 03:06:08.056 INFO [stderr]   --> src/board.rs:33:5
Dec 12 03:06:08.056 INFO [stderr]    |
Dec 12 03:06:08.056 INFO [stderr] 33 |     pub fn winner(&self) -> Square {
Dec 12 03:06:08.056 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 03:06:08.056 INFO [stderr] 
Dec 12 03:06:08.212 INFO [stderr] warning: unused import: `squares::*`
Dec 12 03:06:08.212 INFO [stderr]  --> src/main.rs:8:5
Dec 12 03:06:08.212 INFO [stderr]   |
Dec 12 03:06:08.212 INFO [stderr] 8 | use squares::*;
Dec 12 03:06:08.212 INFO [stderr]   |     ^^^^^^^^^^
Dec 12 03:06:08.212 INFO [stderr]   |
Dec 12 03:06:08.212 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 03:06:08.212 INFO [stderr] 
Dec 12 03:06:08.212 INFO [stderr] warning: unused import: `board::*`
Dec 12 03:06:08.212 INFO [stderr]  --> src/main.rs:9:5
Dec 12 03:06:08.212 INFO [stderr]   |
Dec 12 03:06:08.212 INFO [stderr] 9 | use board::*;
Dec 12 03:06:08.212 INFO [stderr]   |     ^^^^^^^^
Dec 12 03:06:08.212 INFO [stderr] 
Dec 12 03:06:08.212 INFO [stderr] warning: unused import: `Read`
Dec 12 03:06:08.212 INFO [stderr]   --> src/main.rs:12:15
Dec 12 03:06:08.212 INFO [stderr]    |
Dec 12 03:06:08.212 INFO [stderr] 12 | use std::io::{Read, Write};
Dec 12 03:06:08.212 INFO [stderr]    |               ^^^^
Dec 12 03:06:08.212 INFO [stderr] 
Dec 12 03:06:08.276 INFO [stderr] warning: type alias is never used: `Square`
Dec 12 03:06:08.276 INFO [stderr]  --> src/squares.rs:5:1
Dec 12 03:06:08.276 INFO [stderr]   |
Dec 12 03:06:08.276 INFO [stderr] 5 | pub type Square = Option<Mark>;
Dec 12 03:06:08.276 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 03:06:08.276 INFO [stderr]   |
Dec 12 03:06:08.276 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 03:06:08.276 INFO [stderr] 
Dec 12 03:06:08.276 INFO [stderr] warning: variant is never constructed: `X`
Dec 12 03:06:08.276 INFO [stderr]   --> src/squares.rs:10:5
Dec 12 03:06:08.276 INFO [stderr]    |
Dec 12 03:06:08.276 INFO [stderr] 10 |     X, O
Dec 12 03:06:08.276 INFO [stderr]    |     ^
Dec 12 03:06:08.276 INFO [stderr] 
Dec 12 03:06:08.276 INFO [stderr] warning: variant is never constructed: `O`
Dec 12 03:06:08.276 INFO [stderr]   --> src/squares.rs:10:8
Dec 12 03:06:08.276 INFO [stderr]    |
Dec 12 03:06:08.276 INFO [stderr] 10 |     X, O
Dec 12 03:06:08.276 INFO [stderr]    |        ^
Dec 12 03:06:08.276 INFO [stderr] 
Dec 12 03:06:08.276 INFO [stderr] warning: method is never used: `set_square`
Dec 12 03:06:08.276 INFO [stderr]   --> src/board.rs:26:5
Dec 12 03:06:08.276 INFO [stderr]    |
Dec 12 03:06:08.276 INFO [stderr] 26 |     pub fn set_square(&mut self, row: usize, column: usize, square: Square) {
Dec 12 03:06:08.276 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 03:06:08.276 INFO [stderr] 
Dec 12 03:06:08.276 INFO [stderr] warning: method is never used: `winner`
Dec 12 03:06:08.276 INFO [stderr]   --> src/board.rs:33:5
Dec 12 03:06:08.276 INFO [stderr]    |
Dec 12 03:06:08.276 INFO [stderr] 33 |     pub fn winner(&self) -> Square {
Dec 12 03:06:08.276 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 03:06:08.276 INFO [stderr] 
Dec 12 03:06:08.298 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
Dec 12 03:06:08.300 INFO [stderr] su: No module specific data is present
Dec 12 03:06:08.680 INFO running `"docker" "inspect" "8a7c4c4b9dda38a09ebad817e121f95943c778d9da34d29be7c22c10b0bc8bac"`
Dec 12 03:06:08.847 INFO running `"docker" "rm" "-f" "8a7c4c4b9dda38a09ebad817e121f95943c778d9da34d29be7c22c10b0bc8bac"`
Dec 12 03:06:09.080 INFO [stdout] 8a7c4c4b9dda38a09ebad817e121f95943c778d9da34d29be7c22c10b0bc8bac