Nov 01 12:19:41.441 INFO checking ErikPartridge/sudoku-generator against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 12:19:41.441 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-2/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 12:19:41.859 INFO blam! 30457b07edb147220f34465176434b0ec76a9063c854f45b9d536d76d5039fd4
Nov 01 12:19:41.861 INFO running `"docker" "start" "-a" "30457b07edb147220f34465176434b0ec76a9063c854f45b9d536d76d5039fd4"`
Nov 01 12:19:42.878 INFO kablam! usermod: no changes
Nov 01 12:19:42.911 INFO kablam!     Checking sudoku-generator v0.1.0 (/source)
Nov 01 12:19:43.321 INFO kablam! warning: unused import: `freedom::Freedom`
Nov 01 12:19:43.321 INFO kablam!  --> src/main.rs:3:5
Nov 01 12:19:43.321 INFO kablam!   |
Nov 01 12:19:43.321 INFO kablam! 3 | use freedom::Freedom;
Nov 01 12:19:43.321 INFO kablam!   |     ^^^^^^^^^^^^^^^^
Nov 01 12:19:43.321 INFO kablam!   |
Nov 01 12:19:43.321 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 01 12:19:43.321 INFO kablam! 
Nov 01 12:19:43.321 INFO kablam! warning: unused import: `problem::Problem`
Nov 01 12:19:43.321 INFO kablam!  --> src/main.rs:4:5
Nov 01 12:19:43.321 INFO kablam!   |
Nov 01 12:19:43.321 INFO kablam! 4 | use problem::Problem;
Nov 01 12:19:43.326 INFO kablam!   |     ^^^^^^^^^^^^^^^^
Nov 01 12:19:43.326 INFO kablam! 
Nov 01 12:19:43.337 INFO kablam! warning: unused import: `freedom::Freedom`
Nov 01 12:19:43.337 INFO kablam!  --> src/main.rs:3:5
Nov 01 12:19:43.337 INFO kablam!   |
Nov 01 12:19:43.337 INFO kablam! 3 | use freedom::Freedom;
Nov 01 12:19:43.337 INFO kablam!   |     ^^^^^^^^^^^^^^^^
Nov 01 12:19:43.337 INFO kablam!   |
Nov 01 12:19:43.337 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 01 12:19:43.337 INFO kablam! 
Nov 01 12:19:43.337 INFO kablam! warning: unused import: `problem::Problem`
Nov 01 12:19:43.337 INFO kablam!  --> src/main.rs:4:5
Nov 01 12:19:43.337 INFO kablam!   |
Nov 01 12:19:43.337 INFO kablam! 4 | use problem::Problem;
Nov 01 12:19:43.337 INFO kablam!   |     ^^^^^^^^^^^^^^^^
Nov 01 12:19:43.337 INFO kablam! 
Nov 01 12:19:43.374 INFO kablam! warning: unused variable: `j`
Nov 01 12:19:43.374 INFO kablam!   --> src/freedom.rs:28:9
Nov 01 12:19:43.374 INFO kablam!    |
Nov 01 12:19:43.374 INFO kablam! 28 |     for j in 0..3 {
Nov 01 12:19:43.375 INFO kablam!    |         ^ help: consider using `_j` instead
Nov 01 12:19:43.375 INFO kablam!    |
Nov 01 12:19:43.375 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 01 12:19:43.375 INFO kablam! 
Nov 01 12:19:43.376 INFO kablam! warning: constant item is never used: `ORDER`
Nov 01 12:19:43.376 INFO kablam!  --> src/freedom.rs:1:1
Nov 01 12:19:43.376 INFO kablam!   |
Nov 01 12:19:43.377 INFO kablam! 1 | const ORDER: u8 = 3;
Nov 01 12:19:43.377 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^
Nov 01 12:19:43.377 INFO kablam!   |
Nov 01 12:19:43.377 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 01 12:19:43.377 INFO kablam! 
Nov 01 12:19:43.377 INFO kablam! warning: constant item is never used: `DIM`
Nov 01 12:19:43.377 INFO kablam!  --> src/freedom.rs:2:1
Nov 01 12:19:43.377 INFO kablam!   |
Nov 01 12:19:43.377 INFO kablam! 2 | const DIM: u8 = ORDER * ORDER;
Nov 01 12:19:43.377 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 12:19:43.377 INFO kablam! 
Nov 01 12:19:43.377 INFO kablam! warning: constant item is never used: `ELEMENTS`
Nov 01 12:19:43.377 INFO kablam!  --> src/freedom.rs:3:1
Nov 01 12:19:43.377 INFO kablam!   |
Nov 01 12:19:43.377 INFO kablam! 3 | const ELEMENTS: u8 = DIM * DIM;
Nov 01 12:19:43.377 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 12:19:43.377 INFO kablam! 
Nov 01 12:19:43.377 INFO kablam! warning: constant item is never used: `ALL_VALUES`
Nov 01 12:19:43.377 INFO kablam!  --> src/freedom.rs:4:1
Nov 01 12:19:43.377 INFO kablam!   |
Nov 01 12:19:43.377 INFO kablam! 4 | const ALL_VALUES: u16 = (1 << DIM) - 1;
Nov 01 12:19:43.377 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 12:19:43.377 INFO kablam! 
Nov 01 12:19:43.377 INFO kablam! warning: struct is never constructed: `Freedom`
Nov 01 12:19:43.377 INFO kablam!  --> src/freedom.rs:7:1
Nov 01 12:19:43.377 INFO kablam!   |
Nov 01 12:19:43.377 INFO kablam! 7 | pub struct Freedom {
Nov 01 12:19:43.377 INFO kablam!   | ^^^^^^^^^^^^^^^^^^
Nov 01 12:19:43.377 INFO kablam! 
Nov 01 12:19:43.377 INFO kablam! warning: function is never used: `singleton`
Nov 01 12:19:43.377 INFO kablam!   --> src/freedom.rs:11:1
Nov 01 12:19:43.377 INFO kablam!    |
Nov 01 12:19:43.377 INFO kablam! 11 | fn singleton(v: u16) -> u16 {
Nov 01 12:19:43.377 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 12:19:43.377 INFO kablam! 
Nov 01 12:19:43.377 INFO kablam! warning: function is never used: `freedom_eliminate`
Nov 01 12:19:43.377 INFO kablam!   --> src/freedom.rs:16:1
Nov 01 12:19:43.377 INFO kablam!    |
Nov 01 12:19:43.377 INFO kablam! 16 | fn freedom_eliminate(f: &Freedom, col: u16, row: u16, value: u16) -> Freedom {
Nov 01 12:19:43.377 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 12:19:43.377 INFO kablam! 
Nov 01 12:19:43.377 INFO kablam! warning: function is never used: `create_freedom`
Nov 01 12:19:43.377 INFO kablam!   --> src/freedom.rs:38:1
Nov 01 12:19:43.377 INFO kablam!    |
Nov 01 12:19:43.377 INFO kablam! 38 | fn create_freedom(problem: &Problem) -> Freedom {
Nov 01 12:19:43.377 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 12:19:43.377 INFO kablam! 
Nov 01 12:19:43.377 INFO kablam! warning: function is never used: `sanity_check`
Nov 01 12:19:43.377 INFO kablam!   --> src/freedom.rs:52:1
Nov 01 12:19:43.377 INFO kablam!    |
Nov 01 12:19:43.377 INFO kablam! 52 | fn sanity_check(problem: &Problem, freedom: &Freedom) -> bool {
Nov 01 12:19:43.377 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 12:19:43.377 INFO kablam! 
Nov 01 12:19:43.377 INFO kablam! warning: function is never used: `search_least_free`
Nov 01 12:19:43.377 INFO kablam!   --> src/freedom.rs:63:1
Nov 01 12:19:43.377 INFO kablam!    |
Nov 01 12:19:43.377 INFO kablam! 63 | fn search_least_free(problem: &Problem, freedom: &Freedom) -> u16 {
Nov 01 12:19:43.377 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 12:19:43.377 INFO kablam! 
Nov 01 12:19:43.377 INFO kablam! warning: struct is never constructed: `Problem`
Nov 01 12:19:43.377 INFO kablam!  --> src/problem.rs:1:1
Nov 01 12:19:43.377 INFO kablam!   |
Nov 01 12:19:43.377 INFO kablam! 1 | pub struct Problem {
Nov 01 12:19:43.377 INFO kablam!   | ^^^^^^^^^^^^^^^^^^
Nov 01 12:19:43.377 INFO kablam! 
Nov 01 12:19:43.397 INFO kablam! warning: unused variable: `j`
Nov 01 12:19:43.397 INFO kablam!   --> src/freedom.rs:28:9
Nov 01 12:19:43.397 INFO kablam!    |
Nov 01 12:19:43.397 INFO kablam! 28 |     for j in 0..3 {
Nov 01 12:19:43.397 INFO kablam!    |         ^ help: consider using `_j` instead
Nov 01 12:19:43.397 INFO kablam!    |
Nov 01 12:19:43.397 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 01 12:19:43.397 INFO kablam! 
Nov 01 12:19:43.420 INFO kablam! warning: constant item is never used: `ORDER`
Nov 01 12:19:43.421 INFO kablam!  --> src/freedom.rs:1:1
Nov 01 12:19:43.421 INFO kablam!   |
Nov 01 12:19:43.421 INFO kablam! 1 | const ORDER: u8 = 3;
Nov 01 12:19:43.421 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^
Nov 01 12:19:43.421 INFO kablam!   |
Nov 01 12:19:43.421 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 01 12:19:43.421 INFO kablam! 
Nov 01 12:19:43.421 INFO kablam! warning: constant item is never used: `DIM`
Nov 01 12:19:43.421 INFO kablam!  --> src/freedom.rs:2:1
Nov 01 12:19:43.421 INFO kablam!   |
Nov 01 12:19:43.421 INFO kablam! 2 | const DIM: u8 = ORDER * ORDER;
Nov 01 12:19:43.421 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 12:19:43.421 INFO kablam! 
Nov 01 12:19:43.421 INFO kablam! warning: constant item is never used: `ELEMENTS`
Nov 01 12:19:43.421 INFO kablam!  --> src/freedom.rs:3:1
Nov 01 12:19:43.421 INFO kablam!   |
Nov 01 12:19:43.421 INFO kablam! 3 | const ELEMENTS: u8 = DIM * DIM;
Nov 01 12:19:43.421 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 12:19:43.421 INFO kablam! 
Nov 01 12:19:43.421 INFO kablam! warning: constant item is never used: `ALL_VALUES`
Nov 01 12:19:43.421 INFO kablam!  --> src/freedom.rs:4:1
Nov 01 12:19:43.421 INFO kablam!   |
Nov 01 12:19:43.421 INFO kablam! 4 | const ALL_VALUES: u16 = (1 << DIM) - 1;
Nov 01 12:19:43.421 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 12:19:43.421 INFO kablam! 
Nov 01 12:19:43.421 INFO kablam! warning: struct is never constructed: `Freedom`
Nov 01 12:19:43.421 INFO kablam!  --> src/freedom.rs:7:1
Nov 01 12:19:43.421 INFO kablam!   |
Nov 01 12:19:43.421 INFO kablam! 7 | pub struct Freedom {
Nov 01 12:19:43.421 INFO kablam!   | ^^^^^^^^^^^^^^^^^^
Nov 01 12:19:43.421 INFO kablam! 
Nov 01 12:19:43.421 INFO kablam! warning: function is never used: `singleton`
Nov 01 12:19:43.421 INFO kablam!   --> src/freedom.rs:11:1
Nov 01 12:19:43.421 INFO kablam!    |
Nov 01 12:19:43.421 INFO kablam! 11 | fn singleton(v: u16) -> u16 {
Nov 01 12:19:43.421 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 12:19:43.421 INFO kablam! 
Nov 01 12:19:43.421 INFO kablam! warning: function is never used: `freedom_eliminate`
Nov 01 12:19:43.421 INFO kablam!   --> src/freedom.rs:16:1
Nov 01 12:19:43.421 INFO kablam!    |
Nov 01 12:19:43.421 INFO kablam! 16 | fn freedom_eliminate(f: &Freedom, col: u16, row: u16, value: u16) -> Freedom {
Nov 01 12:19:43.421 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 12:19:43.421 INFO kablam! 
Nov 01 12:19:43.421 INFO kablam! warning: function is never used: `create_freedom`
Nov 01 12:19:43.421 INFO kablam!   --> src/freedom.rs:38:1
Nov 01 12:19:43.421 INFO kablam!    |
Nov 01 12:19:43.421 INFO kablam! 38 | fn create_freedom(problem: &Problem) -> Freedom {
Nov 01 12:19:43.421 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 12:19:43.421 INFO kablam! 
Nov 01 12:19:43.421 INFO kablam! warning: function is never used: `sanity_check`
Nov 01 12:19:43.421 INFO kablam!   --> src/freedom.rs:52:1
Nov 01 12:19:43.421 INFO kablam!    |
Nov 01 12:19:43.421 INFO kablam! 52 | fn sanity_check(problem: &Problem, freedom: &Freedom) -> bool {
Nov 01 12:19:43.421 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 12:19:43.421 INFO kablam! 
Nov 01 12:19:43.421 INFO kablam! warning: function is never used: `search_least_free`
Nov 01 12:19:43.421 INFO kablam!   --> src/freedom.rs:63:1
Nov 01 12:19:43.421 INFO kablam!    |
Nov 01 12:19:43.421 INFO kablam! 63 | fn search_least_free(problem: &Problem, freedom: &Freedom) -> u16 {
Nov 01 12:19:43.421 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 12:19:43.421 INFO kablam! 
Nov 01 12:19:43.421 INFO kablam! warning: struct is never constructed: `Problem`
Nov 01 12:19:43.421 INFO kablam!  --> src/problem.rs:1:1
Nov 01 12:19:43.421 INFO kablam!   |
Nov 01 12:19:43.422 INFO kablam! 1 | pub struct Problem {
Nov 01 12:19:43.422 INFO kablam!   | ^^^^^^^^^^^^^^^^^^
Nov 01 12:19:43.422 INFO kablam! 
Nov 01 12:19:43.434 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
Nov 01 12:19:43.434 INFO kablam! su: No module specific data is present
Nov 01 12:19:43.690 INFO running `"docker" "rm" "-f" "30457b07edb147220f34465176434b0ec76a9063c854f45b9d536d76d5039fd4"`
Nov 01 12:19:43.786 INFO blam! 30457b07edb147220f34465176434b0ec76a9063c854f45b9d536d76d5039fd4