Nov 02 16:43:39.471 INFO checking chc4/minesweeper against try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7 for pr-55517
Nov 02 16:43:39.471 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55517/worker-0/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55517/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/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 +dc8b02d6f1e93f212fc39844ea688b634b4a03c7-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 02 16:43:39.945 INFO blam! 0213859067d7355e829bebd0442c2f053aeccc6a979bc1c0782293d6635e06d0
Nov 02 16:43:39.946 INFO running `"docker" "start" "-a" "0213859067d7355e829bebd0442c2f053aeccc6a979bc1c0782293d6635e06d0"`
Nov 02 16:43:41.424 INFO kablam! usermod: no changes
Nov 02 16:43:41.530 INFO kablam!     Checking minesweeper v0.1.0 (/source)
Nov 02 16:43:42.192 INFO kablam! warning: unused import: `std::io`
Nov 02 16:43:42.192 INFO kablam!  --> src/main.rs:1:5
Nov 02 16:43:42.192 INFO kablam!   |
Nov 02 16:43:42.192 INFO kablam! 1 | use std::io;
Nov 02 16:43:42.192 INFO kablam!   |     ^^^^^^^
Nov 02 16:43:42.192 INFO kablam!   |
Nov 02 16:43:42.192 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 02 16:43:42.192 INFO kablam! 
Nov 02 16:43:42.237 INFO kablam! warning: unused import: `std::io`
Nov 02 16:43:42.237 INFO kablam!  --> src/main.rs:1:5
Nov 02 16:43:42.237 INFO kablam!   |
Nov 02 16:43:42.237 INFO kablam! 1 | use std::io;
Nov 02 16:43:42.237 INFO kablam!   |     ^^^^^^^
Nov 02 16:43:42.237 INFO kablam!   |
Nov 02 16:43:42.237 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 02 16:43:42.237 INFO kablam! 
Nov 02 16:43:42.307 INFO kablam! warning: unused variable: `stdin`
Nov 02 16:43:42.307 INFO kablam!    --> src/main.rs:183:9
Nov 02 16:43:42.307 INFO kablam!     |
Nov 02 16:43:42.307 INFO kablam! 183 |     let stdin = std::io::stdin();
Nov 02 16:43:42.307 INFO kablam!     |         ^^^^^ help: consider using `_stdin` instead
Nov 02 16:43:42.307 INFO kablam!     |
Nov 02 16:43:42.307 INFO kablam!     = note: #[warn(unused_variables)] on by default
Nov 02 16:43:42.307 INFO kablam! 
Nov 02 16:43:42.307 INFO kablam! warning: unused variable: `i`
Nov 02 16:43:42.307 INFO kablam!   --> src/main.rs:56:13
Nov 02 16:43:42.307 INFO kablam!    |
Nov 02 16:43:42.307 INFO kablam! 56 |         for i in 0..y {
Nov 02 16:43:42.307 INFO kablam!    |             ^ help: consider using `_i` instead
Nov 02 16:43:42.307 INFO kablam! 
Nov 02 16:43:42.307 INFO kablam! warning: unused variable: `j`
Nov 02 16:43:42.307 INFO kablam!   --> src/main.rs:58:17
Nov 02 16:43:42.307 INFO kablam!    |
Nov 02 16:43:42.307 INFO kablam! 58 |             for j in 0..x {
Nov 02 16:43:42.307 INFO kablam!    |                 ^ help: consider using `_j` instead
Nov 02 16:43:42.307 INFO kablam! 
Nov 02 16:43:42.307 INFO kablam! warning: unused variable: `count`
Nov 02 16:43:42.307 INFO kablam!    --> src/main.rs:108:36
Nov 02 16:43:42.307 INFO kablam!     |
Nov 02 16:43:42.307 INFO kablam! 108 |         if let Slot::Empty(visible,count) = slot {
Nov 02 16:43:42.307 INFO kablam!     |                                    ^^^^^ help: consider using `_count` instead
Nov 02 16:43:42.307 INFO kablam! 
Nov 02 16:43:42.312 INFO kablam! warning: variable does not need to be mutable
Nov 02 16:43:42.312 INFO kablam!   --> src/main.rs:30:9
Nov 02 16:43:42.312 INFO kablam!    |
Nov 02 16:43:42.312 INFO kablam! 30 |     let mut stdin = std::io::stdin();
Nov 02 16:43:42.312 INFO kablam!    |         ----^^^^^
Nov 02 16:43:42.312 INFO kablam!    |         |
Nov 02 16:43:42.312 INFO kablam!    |         help: remove this `mut`
Nov 02 16:43:42.312 INFO kablam!    |
Nov 02 16:43:42.312 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 02 16:43:42.312 INFO kablam! 
Nov 02 16:43:42.380 INFO kablam! warning: unused variable: `stdin`
Nov 02 16:43:42.380 INFO kablam!    --> src/main.rs:183:9
Nov 02 16:43:42.380 INFO kablam!     |
Nov 02 16:43:42.380 INFO kablam! 183 |     let stdin = std::io::stdin();
Nov 02 16:43:42.380 INFO kablam!     |         ^^^^^ help: consider using `_stdin` instead
Nov 02 16:43:42.380 INFO kablam!     |
Nov 02 16:43:42.380 INFO kablam!     = note: #[warn(unused_variables)] on by default
Nov 02 16:43:42.380 INFO kablam! 
Nov 02 16:43:42.380 INFO kablam! warning: unused variable: `i`
Nov 02 16:43:42.380 INFO kablam!   --> src/main.rs:56:13
Nov 02 16:43:42.380 INFO kablam!    |
Nov 02 16:43:42.380 INFO kablam! 56 |         for i in 0..y {
Nov 02 16:43:42.380 INFO kablam!    |             ^ help: consider using `_i` instead
Nov 02 16:43:42.380 INFO kablam! 
Nov 02 16:43:42.380 INFO kablam! warning: unused variable: `j`
Nov 02 16:43:42.380 INFO kablam!   --> src/main.rs:58:17
Nov 02 16:43:42.380 INFO kablam!    |
Nov 02 16:43:42.380 INFO kablam! 58 |             for j in 0..x {
Nov 02 16:43:42.380 INFO kablam!    |                 ^ help: consider using `_j` instead
Nov 02 16:43:42.380 INFO kablam! 
Nov 02 16:43:42.380 INFO kablam! warning: unused variable: `count`
Nov 02 16:43:42.380 INFO kablam!    --> src/main.rs:108:36
Nov 02 16:43:42.380 INFO kablam!     |
Nov 02 16:43:42.380 INFO kablam! 108 |         if let Slot::Empty(visible,count) = slot {
Nov 02 16:43:42.380 INFO kablam!     |                                    ^^^^^ help: consider using `_count` instead
Nov 02 16:43:42.380 INFO kablam! 
Nov 02 16:43:42.384 INFO kablam! warning: variable does not need to be mutable
Nov 02 16:43:42.385 INFO kablam!   --> src/main.rs:30:9
Nov 02 16:43:42.385 INFO kablam!    |
Nov 02 16:43:42.385 INFO kablam! 30 |     let mut stdin = std::io::stdin();
Nov 02 16:43:42.385 INFO kablam!    |         ----^^^^^
Nov 02 16:43:42.386 INFO kablam!    |         |
Nov 02 16:43:42.386 INFO kablam!    |         help: remove this `mut`
Nov 02 16:43:42.386 INFO kablam!    |
Nov 02 16:43:42.386 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 02 16:43:42.386 INFO kablam! 
Nov 02 16:43:42.455 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
Nov 02 16:43:42.463 INFO kablam! su: No module specific data is present
Nov 02 16:43:43.028 INFO running `"docker" "rm" "-f" "0213859067d7355e829bebd0442c2f053aeccc6a979bc1c0782293d6635e06d0"`
Nov 02 16:43:43.372 INFO blam! 0213859067d7355e829bebd0442c2f053aeccc6a979bc1c0782293d6635e06d0