Nov 28 07:53:08.588 INFO checking chc4/minesweeper against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 07:53:08.588 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-2/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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"`
Nov 28 07:53:08.972 INFO [stdout] 3cb4eadec38cb52459b19c05f6357cb00a7b361f44cc4b7c8e23fcecc5276bc9
Nov 28 07:53:08.982 INFO running `"docker" "start" "-a" "3cb4eadec38cb52459b19c05f6357cb00a7b361f44cc4b7c8e23fcecc5276bc9"`
Nov 28 07:53:10.252 INFO [stderr] usermod: no changes
Nov 28 07:53:10.328 INFO [stderr]     Checking minesweeper v0.1.0 (/source)
Nov 28 07:53:10.897 INFO [stderr] warning: unused import: `std::io`
Nov 28 07:53:10.897 INFO [stderr]  --> src/main.rs:1:5
Nov 28 07:53:10.897 INFO [stderr]   |
Nov 28 07:53:10.898 INFO [stderr] 1 | use std::io;
Nov 28 07:53:10.898 INFO [stderr]   |     ^^^^^^^
Nov 28 07:53:10.898 INFO [stderr]   |
Nov 28 07:53:10.900 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 07:53:10.901 INFO [stderr] 
Nov 28 07:53:11.057 INFO [stderr] warning: unused variable: `stdin`
Nov 28 07:53:11.057 INFO [stderr]    --> src/main.rs:183:9
Nov 28 07:53:11.057 INFO [stderr]     |
Nov 28 07:53:11.058 INFO [stderr] 183 |     let stdin = std::io::stdin();
Nov 28 07:53:11.058 INFO [stderr]     |         ^^^^^ help: consider using `_stdin` instead
Nov 28 07:53:11.058 INFO [stderr]     |
Nov 28 07:53:11.059 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 28 07:53:11.059 INFO [stderr] 
Nov 28 07:53:11.059 INFO [stderr] warning: unused variable: `i`
Nov 28 07:53:11.059 INFO [stderr]   --> src/main.rs:56:13
Nov 28 07:53:11.060 INFO [stderr]    |
Nov 28 07:53:11.060 INFO [stderr] 56 |         for i in 0..y {
Nov 28 07:53:11.060 INFO [stderr]    |             ^ help: consider using `_i` instead
Nov 28 07:53:11.060 INFO [stderr] 
Nov 28 07:53:11.061 INFO [stderr] warning: unused variable: `j`
Nov 28 07:53:11.061 INFO [stderr]   --> src/main.rs:58:17
Nov 28 07:53:11.061 INFO [stderr]    |
Nov 28 07:53:11.062 INFO [stderr] 58 |             for j in 0..x {
Nov 28 07:53:11.062 INFO [stderr]    |                 ^ help: consider using `_j` instead
Nov 28 07:53:11.062 INFO [stderr] 
Nov 28 07:53:11.062 INFO [stderr] warning: unused variable: `count`
Nov 28 07:53:11.063 INFO [stderr]    --> src/main.rs:108:36
Nov 28 07:53:11.063 INFO [stderr]     |
Nov 28 07:53:11.063 INFO [stderr] 108 |         if let Slot::Empty(visible,count) = slot {
Nov 28 07:53:11.063 INFO [stderr]     |                                    ^^^^^ help: consider using `_count` instead
Nov 28 07:53:11.064 INFO [stderr] 
Nov 28 07:53:11.072 INFO [stderr] warning: variable does not need to be mutable
Nov 28 07:53:11.073 INFO [stderr]   --> src/main.rs:30:9
Nov 28 07:53:11.073 INFO [stderr]    |
Nov 28 07:53:11.073 INFO [stderr] 30 |     let mut stdin = std::io::stdin();
Nov 28 07:53:11.074 INFO [stderr]    |         ----^^^^^
Nov 28 07:53:11.074 INFO [stderr]    |         |
Nov 28 07:53:11.074 INFO [stderr]    |         help: remove this `mut`
Nov 28 07:53:11.074 INFO [stderr]    |
Nov 28 07:53:11.075 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 07:53:11.075 INFO [stderr] 
Nov 28 07:53:11.176 INFO [stderr] warning: unused import: `std::io`
Nov 28 07:53:11.176 INFO [stderr]  --> src/main.rs:1:5
Nov 28 07:53:11.176 INFO [stderr]   |
Nov 28 07:53:11.176 INFO [stderr] 1 | use std::io;
Nov 28 07:53:11.176 INFO [stderr]   |     ^^^^^^^
Nov 28 07:53:11.176 INFO [stderr]   |
Nov 28 07:53:11.176 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 07:53:11.176 INFO [stderr] 
Nov 28 07:53:11.288 INFO [stderr] warning: unused variable: `stdin`
Nov 28 07:53:11.288 INFO [stderr]    --> src/main.rs:183:9
Nov 28 07:53:11.288 INFO [stderr]     |
Nov 28 07:53:11.289 INFO [stderr] 183 |     let stdin = std::io::stdin();
Nov 28 07:53:11.289 INFO [stderr]     |         ^^^^^ help: consider using `_stdin` instead
Nov 28 07:53:11.289 INFO [stderr]     |
Nov 28 07:53:11.289 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 28 07:53:11.289 INFO [stderr] 
Nov 28 07:53:11.289 INFO [stderr] warning: unused variable: `i`
Nov 28 07:53:11.289 INFO [stderr]   --> src/main.rs:56:13
Nov 28 07:53:11.289 INFO [stderr]    |
Nov 28 07:53:11.289 INFO [stderr] 56 |         for i in 0..y {
Nov 28 07:53:11.289 INFO [stderr]    |             ^ help: consider using `_i` instead
Nov 28 07:53:11.289 INFO [stderr] 
Nov 28 07:53:11.289 INFO [stderr] warning: unused variable: `j`
Nov 28 07:53:11.289 INFO [stderr]   --> src/main.rs:58:17
Nov 28 07:53:11.289 INFO [stderr]    |
Nov 28 07:53:11.289 INFO [stderr] 58 |             for j in 0..x {
Nov 28 07:53:11.289 INFO [stderr]    |                 ^ help: consider using `_j` instead
Nov 28 07:53:11.289 INFO [stderr] 
Nov 28 07:53:11.289 INFO [stderr] warning: unused variable: `count`
Nov 28 07:53:11.289 INFO [stderr]    --> src/main.rs:108:36
Nov 28 07:53:11.289 INFO [stderr]     |
Nov 28 07:53:11.289 INFO [stderr] 108 |         if let Slot::Empty(visible,count) = slot {
Nov 28 07:53:11.289 INFO [stderr]     |                                    ^^^^^ help: consider using `_count` instead
Nov 28 07:53:11.289 INFO [stderr] 
Nov 28 07:53:11.293 INFO [stderr] warning: variable does not need to be mutable
Nov 28 07:53:11.293 INFO [stderr]   --> src/main.rs:30:9
Nov 28 07:53:11.293 INFO [stderr]    |
Nov 28 07:53:11.293 INFO [stderr] 30 |     let mut stdin = std::io::stdin();
Nov 28 07:53:11.293 INFO [stderr]    |         ----^^^^^
Nov 28 07:53:11.293 INFO [stderr]    |         |
Nov 28 07:53:11.293 INFO [stderr]    |         help: remove this `mut`
Nov 28 07:53:11.293 INFO [stderr]    |
Nov 28 07:53:11.298 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 07:53:11.298 INFO [stderr] 
Nov 28 07:53:11.356 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
Nov 28 07:53:11.360 INFO [stderr] su: No module specific data is present
Nov 28 07:53:11.990 INFO running `"docker" "inspect" "3cb4eadec38cb52459b19c05f6357cb00a7b361f44cc4b7c8e23fcecc5276bc9"`
Nov 28 07:53:12.348 INFO running `"docker" "rm" "-f" "3cb4eadec38cb52459b19c05f6357cb00a7b361f44cc4b7c8e23fcecc5276bc9"`
Nov 28 07:53:12.609 INFO [stdout] 3cb4eadec38cb52459b19c05f6357cb00a7b361f44cc4b7c8e23fcecc5276bc9