Nov 01 07:12:47.885 INFO checking chc4/minesweeper against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 07:12:47.886 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-0/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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 01 07:12:48.373 INFO blam! 2d86b297952af169ced57505d0fd0a244abd51bb72d825a3e8b0fb499abdfa22
Nov 01 07:12:48.374 INFO running `"docker" "start" "-a" "2d86b297952af169ced57505d0fd0a244abd51bb72d825a3e8b0fb499abdfa22"`
Nov 01 07:12:49.628 INFO kablam! usermod: no changes
Nov 01 07:12:49.720 INFO kablam!     Checking minesweeper v0.1.0 (/source)
Nov 01 07:12:50.229 INFO kablam! warning: unused import: `std::io`
Nov 01 07:12:50.229 INFO kablam!  --> src/main.rs:1:5
Nov 01 07:12:50.230 INFO kablam!   |
Nov 01 07:12:50.230 INFO kablam! 1 | use std::io;
Nov 01 07:12:50.230 INFO kablam!   |     ^^^^^^^
Nov 01 07:12:50.231 INFO kablam!   |
Nov 01 07:12:50.231 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 01 07:12:50.231 INFO kablam! 
Nov 01 07:12:50.380 INFO kablam! warning: unused variable: `stdin`
Nov 01 07:12:50.381 INFO kablam!    --> src/main.rs:183:9
Nov 01 07:12:50.381 INFO kablam!     |
Nov 01 07:12:50.381 INFO kablam! 183 |     let stdin = std::io::stdin();
Nov 01 07:12:50.382 INFO kablam!     |         ^^^^^ help: consider using `_stdin` instead
Nov 01 07:12:50.382 INFO kablam!     |
Nov 01 07:12:50.382 INFO kablam!     = note: #[warn(unused_variables)] on by default
Nov 01 07:12:50.382 INFO kablam! 
Nov 01 07:12:50.382 INFO kablam! warning: unused variable: `i`
Nov 01 07:12:50.383 INFO kablam!   --> src/main.rs:56:13
Nov 01 07:12:50.383 INFO kablam!    |
Nov 01 07:12:50.383 INFO kablam! 56 |         for i in 0..y {
Nov 01 07:12:50.383 INFO kablam!    |             ^ help: consider using `_i` instead
Nov 01 07:12:50.384 INFO kablam! 
Nov 01 07:12:50.384 INFO kablam! warning: unused variable: `j`
Nov 01 07:12:50.384 INFO kablam!   --> src/main.rs:58:17
Nov 01 07:12:50.385 INFO kablam!    |
Nov 01 07:12:50.385 INFO kablam! 58 |             for j in 0..x {
Nov 01 07:12:50.385 INFO kablam!    |                 ^ help: consider using `_j` instead
Nov 01 07:12:50.385 INFO kablam! 
Nov 01 07:12:50.386 INFO kablam! warning: unused variable: `count`
Nov 01 07:12:50.386 INFO kablam!    --> src/main.rs:108:36
Nov 01 07:12:50.386 INFO kablam!     |
Nov 01 07:12:50.386 INFO kablam! 108 |         if let Slot::Empty(visible,count) = slot {
Nov 01 07:12:50.387 INFO kablam!     |                                    ^^^^^ help: consider using `_count` instead
Nov 01 07:12:50.387 INFO kablam! 
Nov 01 07:12:50.387 INFO kablam! warning: variable does not need to be mutable
Nov 01 07:12:50.387 INFO kablam!   --> src/main.rs:30:9
Nov 01 07:12:50.388 INFO kablam!    |
Nov 01 07:12:50.388 INFO kablam! 30 |     let mut stdin = std::io::stdin();
Nov 01 07:12:50.388 INFO kablam!    |         ----^^^^^
Nov 01 07:12:50.388 INFO kablam!    |         |
Nov 01 07:12:50.389 INFO kablam!    |         help: remove this `mut`
Nov 01 07:12:50.389 INFO kablam!    |
Nov 01 07:12:50.389 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 01 07:12:50.389 INFO kablam! 
Nov 01 07:12:50.461 INFO kablam! warning: unused import: `std::io`
Nov 01 07:12:50.461 INFO kablam!  --> src/main.rs:1:5
Nov 01 07:12:50.462 INFO kablam!   |
Nov 01 07:12:50.462 INFO kablam! 1 | use std::io;
Nov 01 07:12:50.462 INFO kablam!   |     ^^^^^^^
Nov 01 07:12:50.462 INFO kablam!   |
Nov 01 07:12:50.463 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 01 07:12:50.463 INFO kablam! 
Nov 01 07:12:50.512 INFO kablam! warning: unused variable: `stdin`
Nov 01 07:12:50.513 INFO kablam!    --> src/main.rs:183:9
Nov 01 07:12:50.513 INFO kablam!     |
Nov 01 07:12:50.513 INFO kablam! 183 |     let stdin = std::io::stdin();
Nov 01 07:12:50.513 INFO kablam!     |         ^^^^^ help: consider using `_stdin` instead
Nov 01 07:12:50.513 INFO kablam!     |
Nov 01 07:12:50.513 INFO kablam!     = note: #[warn(unused_variables)] on by default
Nov 01 07:12:50.513 INFO kablam! 
Nov 01 07:12:50.513 INFO kablam! warning: unused variable: `i`
Nov 01 07:12:50.513 INFO kablam!   --> src/main.rs:56:13
Nov 01 07:12:50.513 INFO kablam!    |
Nov 01 07:12:50.513 INFO kablam! 56 |         for i in 0..y {
Nov 01 07:12:50.513 INFO kablam!    |             ^ help: consider using `_i` instead
Nov 01 07:12:50.513 INFO kablam! 
Nov 01 07:12:50.513 INFO kablam! warning: unused variable: `j`
Nov 01 07:12:50.513 INFO kablam!   --> src/main.rs:58:17
Nov 01 07:12:50.513 INFO kablam!    |
Nov 01 07:12:50.513 INFO kablam! 58 |             for j in 0..x {
Nov 01 07:12:50.513 INFO kablam!    |                 ^ help: consider using `_j` instead
Nov 01 07:12:50.513 INFO kablam! 
Nov 01 07:12:50.513 INFO kablam! warning: unused variable: `count`
Nov 01 07:12:50.513 INFO kablam!    --> src/main.rs:108:36
Nov 01 07:12:50.513 INFO kablam!     |
Nov 01 07:12:50.513 INFO kablam! 108 |         if let Slot::Empty(visible,count) = slot {
Nov 01 07:12:50.513 INFO kablam!     |                                    ^^^^^ help: consider using `_count` instead
Nov 01 07:12:50.513 INFO kablam! 
Nov 01 07:12:50.520 INFO kablam! warning: variable does not need to be mutable
Nov 01 07:12:50.520 INFO kablam!   --> src/main.rs:30:9
Nov 01 07:12:50.520 INFO kablam!    |
Nov 01 07:12:50.520 INFO kablam! 30 |     let mut stdin = std::io::stdin();
Nov 01 07:12:50.520 INFO kablam!    |         ----^^^^^
Nov 01 07:12:50.520 INFO kablam!    |         |
Nov 01 07:12:50.520 INFO kablam!    |         help: remove this `mut`
Nov 01 07:12:50.520 INFO kablam!    |
Nov 01 07:12:50.520 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 01 07:12:50.520 INFO kablam! 
Nov 01 07:12:50.613 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
Nov 01 07:12:50.665 INFO kablam! su: No module specific data is present
Nov 01 07:12:51.218 INFO running `"docker" "rm" "-f" "2d86b297952af169ced57505d0fd0a244abd51bb72d825a3e8b0fb499abdfa22"`
Nov 01 07:12:51.509 INFO blam! 2d86b297952af169ced57505d0fd0a244abd51bb72d825a3e8b0fb499abdfa22