Dec 19 16:04:11.317 INFO checking hmc-memsafe-2016f/wk0-starter against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 16:04:11.317 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/hmc-memsafe-2016f/wk0-starter:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 16:04:11.535 INFO [stdout] 23093627fefb7a264ac6377649d6974114fef2e591f588893cde33cec3a82b95
Dec 19 16:04:11.538 INFO running `"docker" "start" "-a" "23093627fefb7a264ac6377649d6974114fef2e591f588893cde33cec3a82b95"`
Dec 19 16:04:12.283 INFO [stderr]     Checking wk0-starter v0.1.0 (/opt/crater/workdir)
Dec 19 16:04:12.642 INFO [stderr] warning: unused variable: `input`
Dec 19 16:04:12.642 INFO [stderr]   --> src/main.rs:94:17
Dec 19 16:04:12.642 INFO [stderr]    |
Dec 19 16:04:12.642 INFO [stderr] 94 | fn parse_action(input: &str) -> Result<Action,HanoiError> {
Dec 19 16:04:12.642 INFO [stderr]    |                 ^^^^^ help: consider using `_input` instead
Dec 19 16:04:12.642 INFO [stderr]    |
Dec 19 16:04:12.642 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 16:04:12.642 INFO [stderr] 
Dec 19 16:04:12.642 INFO [stderr] warning: unused variable: `action`
Dec 19 16:04:12.642 INFO [stderr]    --> src/main.rs:198:77
Dec 19 16:04:12.642 INFO [stderr]     |
Dec 19 16:04:12.642 INFO [stderr] 198 |         let next_step_or_err = parse_action(line.as_str().trim()).and_then(|action| {
Dec 19 16:04:12.642 INFO [stderr]     |                                                                             ^^^^^^ help: consider using `_action` instead
Dec 19 16:04:12.642 INFO [stderr] 
Dec 19 16:04:12.642 INFO [stderr] warning: unused variable: `from`
Dec 19 16:04:12.642 INFO [stderr]   --> src/main.rs:32:12
Dec 19 16:04:12.642 INFO [stderr]    |
Dec 19 16:04:12.642 INFO [stderr] 32 |     fn new(from: Peg, to: Peg) -> Move {
Dec 19 16:04:12.642 INFO [stderr]    |            ^^^^ help: consider using `_from` instead
Dec 19 16:04:12.642 INFO [stderr] 
Dec 19 16:04:12.642 INFO [stderr] warning: unused variable: `to`
Dec 19 16:04:12.642 INFO [stderr]   --> src/main.rs:32:23
Dec 19 16:04:12.642 INFO [stderr]    |
Dec 19 16:04:12.642 INFO [stderr] 32 |     fn new(from: Peg, to: Peg) -> Move {
Dec 19 16:04:12.642 INFO [stderr]    |                       ^^ help: consider using `_to` instead
Dec 19 16:04:12.642 INFO [stderr] 
Dec 19 16:04:12.642 INFO [stderr] warning: unused variable: `peg`
Dec 19 16:04:12.642 INFO [stderr]   --> src/main.rs:77:39
Dec 19 16:04:12.642 INFO [stderr]    |
Dec 19 16:04:12.642 INFO [stderr] 77 |             HanoiError::UnstableStack(peg, Disk(size)) => unimplemented!(),
Dec 19 16:04:12.642 INFO [stderr]    |                                       ^^^ help: consider using `_peg` instead
Dec 19 16:04:12.642 INFO [stderr] 
Dec 19 16:04:12.642 INFO [stderr] warning: unused variable: `size`
Dec 19 16:04:12.642 INFO [stderr]   --> src/main.rs:77:49
Dec 19 16:04:12.642 INFO [stderr]    |
Dec 19 16:04:12.642 INFO [stderr] 77 |             HanoiError::UnstableStack(peg, Disk(size)) => unimplemented!(),
Dec 19 16:04:12.642 INFO [stderr]    |                                                 ^^^^ help: consider using `_size` instead
Dec 19 16:04:12.642 INFO [stderr] 
Dec 19 16:04:12.642 INFO [stderr] warning: unused variable: `peg`
Dec 19 16:04:12.642 INFO [stderr]   --> src/main.rs:78:35
Dec 19 16:04:12.642 INFO [stderr]    |
Dec 19 16:04:12.642 INFO [stderr] 78 |             HanoiError::EmptyFrom(peg) => unimplemented!(),
Dec 19 16:04:12.642 INFO [stderr]    |                                   ^^^ help: consider using `_peg` instead
Dec 19 16:04:12.642 INFO [stderr] 
Dec 19 16:04:12.642 INFO [stderr] warning: unused variable: `disks`
Dec 19 16:04:12.642 INFO [stderr]    --> src/main.rs:101:12
Dec 19 16:04:12.642 INFO [stderr]     |
Dec 19 16:04:12.642 INFO [stderr] 101 |     fn new(disks: u8) -> State {
Dec 19 16:04:12.642 INFO [stderr]     |            ^^^^^ help: consider using `_disks` instead
Dec 19 16:04:12.642 INFO [stderr] 
Dec 19 16:04:12.647 INFO [stderr] warning: unused variable: `peg`
Dec 19 16:04:12.648 INFO [stderr]    --> src/main.rs:106:33
Dec 19 16:04:12.648 INFO [stderr]     |
Dec 19 16:04:12.648 INFO [stderr] 106 |     fn get_tower_mut(&mut self, peg: Peg) -> &mut Vec<Disk> {
Dec 19 16:04:12.648 INFO [stderr]     |                                 ^^^ help: consider using `_peg` instead
Dec 19 16:04:12.648 INFO [stderr] 
Dec 19 16:04:12.648 INFO [stderr] warning: unused variable: `peg`
Dec 19 16:04:12.648 INFO [stderr]    --> src/main.rs:111:25
Dec 19 16:04:12.648 INFO [stderr]     |
Dec 19 16:04:12.648 INFO [stderr] 111 |     fn get_tower(&self, peg: Peg) -> &Vec<Disk> {
Dec 19 16:04:12.648 INFO [stderr]     |                         ^^^ help: consider using `_peg` instead
Dec 19 16:04:12.648 INFO [stderr] 
Dec 19 16:04:12.648 INFO [stderr] warning: unused variable: `peg`
Dec 19 16:04:12.648 INFO [stderr]    --> src/main.rs:116:28
Dec 19 16:04:12.648 INFO [stderr]     |
Dec 19 16:04:12.648 INFO [stderr] 116 |     fn pop_disk(&mut self, peg: Peg) -> Option<Disk> {
Dec 19 16:04:12.648 INFO [stderr]     |                            ^^^ help: consider using `_peg` instead
Dec 19 16:04:12.648 INFO [stderr] 
Dec 19 16:04:12.648 INFO [stderr] warning: unused variable: `peg`
Dec 19 16:04:12.648 INFO [stderr]    --> src/main.rs:133:29
Dec 19 16:04:12.648 INFO [stderr]     |
Dec 19 16:04:12.648 INFO [stderr] 133 |     fn push_disk(&mut self, peg: Peg, disk: Disk) -> Result<(), HanoiError> {
Dec 19 16:04:12.648 INFO [stderr]     |                             ^^^ help: consider using `_peg` instead
Dec 19 16:04:12.648 INFO [stderr] 
Dec 19 16:04:12.648 INFO [stderr] warning: unused variable: `disk`
Dec 19 16:04:12.648 INFO [stderr]    --> src/main.rs:133:39
Dec 19 16:04:12.648 INFO [stderr]     |
Dec 19 16:04:12.648 INFO [stderr] 133 |     fn push_disk(&mut self, peg: Peg, disk: Disk) -> Result<(), HanoiError> {
Dec 19 16:04:12.648 INFO [stderr]     |                                       ^^^^ help: consider using `_disk` instead
Dec 19 16:04:12.648 INFO [stderr] 
Dec 19 16:04:12.648 INFO [stderr] warning: unused variable: `mov`
Dec 19 16:04:12.648 INFO [stderr]    --> src/main.rs:151:27
Dec 19 16:04:12.648 INFO [stderr]     |
Dec 19 16:04:12.648 INFO [stderr] 151 |     fn do_move(&mut self, mov: Move) -> Result<NextStep, HanoiError> {
Dec 19 16:04:12.648 INFO [stderr]     |                           ^^^ help: consider using `_mov` instead
Dec 19 16:04:12.648 INFO [stderr] 
Dec 19 16:04:12.681 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:04:12.681 INFO [stderr]    --> src/main.rs:188:9
Dec 19 16:04:12.681 INFO [stderr]     |
Dec 19 16:04:12.681 INFO [stderr] 188 |     let mut state = State::new(user_start_size.unwrap_or(START_SIZE));
Dec 19 16:04:12.681 INFO [stderr]     |         ----^^^^^
Dec 19 16:04:12.681 INFO [stderr]     |         |
Dec 19 16:04:12.681 INFO [stderr]     |         help: remove this `mut`
Dec 19 16:04:12.681 INFO [stderr]     |
Dec 19 16:04:12.681 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 16:04:12.681 INFO [stderr] 
Dec 19 16:04:12.681 INFO [stderr] warning: field is never used: `left`
Dec 19 16:04:12.681 INFO [stderr]   --> src/main.rs:19:5
Dec 19 16:04:12.681 INFO [stderr]    |
Dec 19 16:04:12.681 INFO [stderr] 19 |     left: Vec<Disk>,
Dec 19 16:04:12.681 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 19 16:04:12.681 INFO [stderr]    |
Dec 19 16:04:12.681 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 16:04:12.681 INFO [stderr] 
Dec 19 16:04:12.681 INFO [stderr] warning: field is never used: `center`
Dec 19 16:04:12.681 INFO [stderr]   --> src/main.rs:20:5
Dec 19 16:04:12.681 INFO [stderr]    |
Dec 19 16:04:12.681 INFO [stderr] 20 |     center: Vec<Disk>,
Dec 19 16:04:12.681 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 19 16:04:12.681 INFO [stderr] 
Dec 19 16:04:12.681 INFO [stderr] warning: field is never used: `right`
Dec 19 16:04:12.681 INFO [stderr]   --> src/main.rs:21:5
Dec 19 16:04:12.681 INFO [stderr]    |
Dec 19 16:04:12.681 INFO [stderr] 21 |     right: Vec<Disk>,
Dec 19 16:04:12.681 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 19 16:04:12.681 INFO [stderr] 
Dec 19 16:04:12.681 INFO [stderr] warning: method is never used: `new`
Dec 19 16:04:12.681 INFO [stderr]   --> src/main.rs:32:5
Dec 19 16:04:12.681 INFO [stderr]    |
Dec 19 16:04:12.681 INFO [stderr] 32 |     fn new(from: Peg, to: Peg) -> Move {
Dec 19 16:04:12.681 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:04:12.681 INFO [stderr] 
Dec 19 16:04:12.681 INFO [stderr] warning: variant is never constructed: `Move`
Dec 19 16:04:12.681 INFO [stderr]   --> src/main.rs:47:5
Dec 19 16:04:12.681 INFO [stderr]    |
Dec 19 16:04:12.681 INFO [stderr] 47 |     Move(Move),
Dec 19 16:04:12.681 INFO [stderr]    |     ^^^^^^^^^^
Dec 19 16:04:12.681 INFO [stderr] 
Dec 19 16:04:12.681 INFO [stderr] warning: variant is never constructed: `Quit`
Dec 19 16:04:12.681 INFO [stderr]   --> src/main.rs:49:5
Dec 19 16:04:12.681 INFO [stderr]    |
Dec 19 16:04:12.681 INFO [stderr] 49 |     Quit,
Dec 19 16:04:12.681 INFO [stderr]    |     ^^^^
Dec 19 16:04:12.681 INFO [stderr] 
Dec 19 16:04:12.681 INFO [stderr] warning: variant is never constructed: `Quit`
Dec 19 16:04:12.681 INFO [stderr]   --> src/main.rs:56:5
Dec 19 16:04:12.681 INFO [stderr]    |
Dec 19 16:04:12.681 INFO [stderr] 56 |     Quit,
Dec 19 16:04:12.681 INFO [stderr]    |     ^^^^
Dec 19 16:04:12.681 INFO [stderr] 
Dec 19 16:04:12.681 INFO [stderr] warning: variant is never constructed: `Win`
Dec 19 16:04:12.681 INFO [stderr]   --> src/main.rs:58:5
Dec 19 16:04:12.681 INFO [stderr]    |
Dec 19 16:04:12.681 INFO [stderr] 58 |     Win,
Dec 19 16:04:12.681 INFO [stderr]    |     ^^^
Dec 19 16:04:12.681 INFO [stderr] 
Dec 19 16:04:12.681 INFO [stderr] warning: variant is never constructed: `Continue`
Dec 19 16:04:12.681 INFO [stderr]   --> src/main.rs:60:5
Dec 19 16:04:12.681 INFO [stderr]    |
Dec 19 16:04:12.681 INFO [stderr] 60 |     Continue,
Dec 19 16:04:12.681 INFO [stderr]    |     ^^^^^^^^
Dec 19 16:04:12.681 INFO [stderr] 
Dec 19 16:04:12.681 INFO [stderr] warning: variant is never constructed: `UnknownCommand`
Dec 19 16:04:12.681 INFO [stderr]   --> src/main.rs:66:5
Dec 19 16:04:12.681 INFO [stderr]    |
Dec 19 16:04:12.681 INFO [stderr] 66 |     UnknownCommand,
Dec 19 16:04:12.681 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 19 16:04:12.681 INFO [stderr] 
Dec 19 16:04:12.681 INFO [stderr] warning: variant is never constructed: `UnstableStack`
Dec 19 16:04:12.681 INFO [stderr]   --> src/main.rs:68:5
Dec 19 16:04:12.681 INFO [stderr]    |
Dec 19 16:04:12.681 INFO [stderr] 68 |     UnstableStack(Peg, Disk),
Dec 19 16:04:12.681 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:04:12.681 INFO [stderr] 
Dec 19 16:04:12.681 INFO [stderr] warning: variant is never constructed: `EmptyFrom`
Dec 19 16:04:12.681 INFO [stderr]   --> src/main.rs:70:5
Dec 19 16:04:12.681 INFO [stderr]    |
Dec 19 16:04:12.682 INFO [stderr] 70 |     EmptyFrom(Peg),
Dec 19 16:04:12.682 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 19 16:04:12.682 INFO [stderr] 
Dec 19 16:04:12.682 INFO [stderr] warning: method is never used: `get_tower_mut`
Dec 19 16:04:12.682 INFO [stderr]    --> src/main.rs:106:5
Dec 19 16:04:12.682 INFO [stderr]     |
Dec 19 16:04:12.682 INFO [stderr] 106 |     fn get_tower_mut(&mut self, peg: Peg) -> &mut Vec<Disk> {
Dec 19 16:04:12.682 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:04:12.682 INFO [stderr] 
Dec 19 16:04:12.682 INFO [stderr] warning: method is never used: `pop_disk`
Dec 19 16:04:12.682 INFO [stderr]    --> src/main.rs:116:5
Dec 19 16:04:12.682 INFO [stderr]     |
Dec 19 16:04:12.682 INFO [stderr] 116 |     fn pop_disk(&mut self, peg: Peg) -> Option<Disk> {
Dec 19 16:04:12.682 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:04:12.682 INFO [stderr] 
Dec 19 16:04:12.682 INFO [stderr] warning: method is never used: `peek_disk`
Dec 19 16:04:12.682 INFO [stderr]    --> src/main.rs:121:5
Dec 19 16:04:12.682 INFO [stderr]     |
Dec 19 16:04:12.682 INFO [stderr] 121 |     fn peek_disk(&self, peg: Peg) -> Option<Disk> {
Dec 19 16:04:12.682 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:04:12.682 INFO [stderr] 
Dec 19 16:04:12.682 INFO [stderr] warning: method is never used: `push_disk`
Dec 19 16:04:12.682 INFO [stderr]    --> src/main.rs:133:5
Dec 19 16:04:12.682 INFO [stderr]     |
Dec 19 16:04:12.682 INFO [stderr] 133 |     fn push_disk(&mut self, peg: Peg, disk: Disk) -> Result<(), HanoiError> {
Dec 19 16:04:12.682 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:04:12.682 INFO [stderr] 
Dec 19 16:04:12.682 INFO [stderr] warning: method is never used: `done`
Dec 19 16:04:12.682 INFO [stderr]    --> src/main.rs:138:5
Dec 19 16:04:12.682 INFO [stderr]     |
Dec 19 16:04:12.682 INFO [stderr] 138 |     fn done(&self) -> bool {
Dec 19 16:04:12.682 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:04:12.682 INFO [stderr] 
Dec 19 16:04:12.682 INFO [stderr] warning: method is never used: `do_move`
Dec 19 16:04:12.682 INFO [stderr]    --> src/main.rs:151:5
Dec 19 16:04:12.682 INFO [stderr]     |
Dec 19 16:04:12.682 INFO [stderr] 151 |     fn do_move(&mut self, mov: Move) -> Result<NextStep, HanoiError> {
Dec 19 16:04:12.682 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:04:12.682 INFO [stderr] 
Dec 19 16:04:12.736 INFO [stderr] warning: unused variable: `input`
Dec 19 16:04:12.736 INFO [stderr]   --> src/main.rs:94:17
Dec 19 16:04:12.736 INFO [stderr]    |
Dec 19 16:04:12.736 INFO [stderr] 94 | fn parse_action(input: &str) -> Result<Action,HanoiError> {
Dec 19 16:04:12.736 INFO [stderr]    |                 ^^^^^ help: consider using `_input` instead
Dec 19 16:04:12.736 INFO [stderr]    |
Dec 19 16:04:12.736 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 16:04:12.737 INFO [stderr] 
Dec 19 16:04:12.737 INFO [stderr] warning: unused variable: `action`
Dec 19 16:04:12.737 INFO [stderr]    --> src/main.rs:198:77
Dec 19 16:04:12.737 INFO [stderr]     |
Dec 19 16:04:12.737 INFO [stderr] 198 |         let next_step_or_err = parse_action(line.as_str().trim()).and_then(|action| {
Dec 19 16:04:12.737 INFO [stderr]     |                                                                             ^^^^^^ help: consider using `_action` instead
Dec 19 16:04:12.737 INFO [stderr] 
Dec 19 16:04:12.737 INFO [stderr] warning: unused variable: `from`
Dec 19 16:04:12.737 INFO [stderr]   --> src/main.rs:32:12
Dec 19 16:04:12.737 INFO [stderr]    |
Dec 19 16:04:12.737 INFO [stderr] 32 |     fn new(from: Peg, to: Peg) -> Move {
Dec 19 16:04:12.737 INFO [stderr]    |            ^^^^ help: consider using `_from` instead
Dec 19 16:04:12.737 INFO [stderr] 
Dec 19 16:04:12.737 INFO [stderr] warning: unused variable: `to`
Dec 19 16:04:12.737 INFO [stderr]   --> src/main.rs:32:23
Dec 19 16:04:12.737 INFO [stderr]    |
Dec 19 16:04:12.737 INFO [stderr] 32 |     fn new(from: Peg, to: Peg) -> Move {
Dec 19 16:04:12.737 INFO [stderr]    |                       ^^ help: consider using `_to` instead
Dec 19 16:04:12.737 INFO [stderr] 
Dec 19 16:04:12.737 INFO [stderr] warning: unused variable: `peg`
Dec 19 16:04:12.737 INFO [stderr]   --> src/main.rs:77:39
Dec 19 16:04:12.737 INFO [stderr]    |
Dec 19 16:04:12.737 INFO [stderr] 77 |             HanoiError::UnstableStack(peg, Disk(size)) => unimplemented!(),
Dec 19 16:04:12.737 INFO [stderr]    |                                       ^^^ help: consider using `_peg` instead
Dec 19 16:04:12.737 INFO [stderr] 
Dec 19 16:04:12.737 INFO [stderr] warning: unused variable: `size`
Dec 19 16:04:12.737 INFO [stderr]   --> src/main.rs:77:49
Dec 19 16:04:12.737 INFO [stderr]    |
Dec 19 16:04:12.737 INFO [stderr] 77 |             HanoiError::UnstableStack(peg, Disk(size)) => unimplemented!(),
Dec 19 16:04:12.737 INFO [stderr]    |                                                 ^^^^ help: consider using `_size` instead
Dec 19 16:04:12.737 INFO [stderr] 
Dec 19 16:04:12.737 INFO [stderr] warning: unused variable: `peg`
Dec 19 16:04:12.737 INFO [stderr]   --> src/main.rs:78:35
Dec 19 16:04:12.737 INFO [stderr]    |
Dec 19 16:04:12.737 INFO [stderr] 78 |             HanoiError::EmptyFrom(peg) => unimplemented!(),
Dec 19 16:04:12.737 INFO [stderr]    |                                   ^^^ help: consider using `_peg` instead
Dec 19 16:04:12.737 INFO [stderr] 
Dec 19 16:04:12.737 INFO [stderr] warning: unused variable: `disks`
Dec 19 16:04:12.737 INFO [stderr]    --> src/main.rs:101:12
Dec 19 16:04:12.737 INFO [stderr]     |
Dec 19 16:04:12.737 INFO [stderr] 101 |     fn new(disks: u8) -> State {
Dec 19 16:04:12.737 INFO [stderr]     |            ^^^^^ help: consider using `_disks` instead
Dec 19 16:04:12.737 INFO [stderr] 
Dec 19 16:04:12.737 INFO [stderr] warning: unused variable: `peg`
Dec 19 16:04:12.737 INFO [stderr]    --> src/main.rs:106:33
Dec 19 16:04:12.737 INFO [stderr]     |
Dec 19 16:04:12.737 INFO [stderr] 106 |     fn get_tower_mut(&mut self, peg: Peg) -> &mut Vec<Disk> {
Dec 19 16:04:12.737 INFO [stderr]     |                                 ^^^ help: consider using `_peg` instead
Dec 19 16:04:12.737 INFO [stderr] 
Dec 19 16:04:12.737 INFO [stderr] warning: unused variable: `peg`
Dec 19 16:04:12.737 INFO [stderr]    --> src/main.rs:111:25
Dec 19 16:04:12.737 INFO [stderr]     |
Dec 19 16:04:12.737 INFO [stderr] 111 |     fn get_tower(&self, peg: Peg) -> &Vec<Disk> {
Dec 19 16:04:12.737 INFO [stderr]     |                         ^^^ help: consider using `_peg` instead
Dec 19 16:04:12.737 INFO [stderr] 
Dec 19 16:04:12.737 INFO [stderr] warning: unused variable: `peg`
Dec 19 16:04:12.737 INFO [stderr]    --> src/main.rs:116:28
Dec 19 16:04:12.737 INFO [stderr]     |
Dec 19 16:04:12.737 INFO [stderr] 116 |     fn pop_disk(&mut self, peg: Peg) -> Option<Disk> {
Dec 19 16:04:12.737 INFO [stderr]     |                            ^^^ help: consider using `_peg` instead
Dec 19 16:04:12.737 INFO [stderr] 
Dec 19 16:04:12.737 INFO [stderr] warning: unused variable: `peg`
Dec 19 16:04:12.737 INFO [stderr]    --> src/main.rs:133:29
Dec 19 16:04:12.737 INFO [stderr]     |
Dec 19 16:04:12.737 INFO [stderr] 133 |     fn push_disk(&mut self, peg: Peg, disk: Disk) -> Result<(), HanoiError> {
Dec 19 16:04:12.737 INFO [stderr]     |                             ^^^ help: consider using `_peg` instead
Dec 19 16:04:12.737 INFO [stderr] 
Dec 19 16:04:12.737 INFO [stderr] warning: unused variable: `disk`
Dec 19 16:04:12.737 INFO [stderr]    --> src/main.rs:133:39
Dec 19 16:04:12.737 INFO [stderr]     |
Dec 19 16:04:12.737 INFO [stderr] 133 |     fn push_disk(&mut self, peg: Peg, disk: Disk) -> Result<(), HanoiError> {
Dec 19 16:04:12.737 INFO [stderr]     |                                       ^^^^ help: consider using `_disk` instead
Dec 19 16:04:12.737 INFO [stderr] 
Dec 19 16:04:12.737 INFO [stderr] warning: unused variable: `mov`
Dec 19 16:04:12.737 INFO [stderr]    --> src/main.rs:151:27
Dec 19 16:04:12.737 INFO [stderr]     |
Dec 19 16:04:12.737 INFO [stderr] 151 |     fn do_move(&mut self, mov: Move) -> Result<NextStep, HanoiError> {
Dec 19 16:04:12.737 INFO [stderr]     |                           ^^^ help: consider using `_mov` instead
Dec 19 16:04:12.737 INFO [stderr] 
Dec 19 16:04:12.769 INFO [stderr] warning: variable does not need to be mutable
Dec 19 16:04:12.769 INFO [stderr]    --> src/main.rs:188:9
Dec 19 16:04:12.769 INFO [stderr]     |
Dec 19 16:04:12.769 INFO [stderr] 188 |     let mut state = State::new(user_start_size.unwrap_or(START_SIZE));
Dec 19 16:04:12.769 INFO [stderr]     |         ----^^^^^
Dec 19 16:04:12.769 INFO [stderr]     |         |
Dec 19 16:04:12.769 INFO [stderr]     |         help: remove this `mut`
Dec 19 16:04:12.769 INFO [stderr]     |
Dec 19 16:04:12.769 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 16:04:12.769 INFO [stderr] 
Dec 19 16:04:12.769 INFO [stderr] warning: field is never used: `left`
Dec 19 16:04:12.769 INFO [stderr]   --> src/main.rs:19:5
Dec 19 16:04:12.769 INFO [stderr]    |
Dec 19 16:04:12.769 INFO [stderr] 19 |     left: Vec<Disk>,
Dec 19 16:04:12.769 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 19 16:04:12.769 INFO [stderr]    |
Dec 19 16:04:12.769 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 16:04:12.769 INFO [stderr] 
Dec 19 16:04:12.769 INFO [stderr] warning: field is never used: `center`
Dec 19 16:04:12.769 INFO [stderr]   --> src/main.rs:20:5
Dec 19 16:04:12.769 INFO [stderr]    |
Dec 19 16:04:12.769 INFO [stderr] 20 |     center: Vec<Disk>,
Dec 19 16:04:12.769 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 19 16:04:12.769 INFO [stderr] 
Dec 19 16:04:12.769 INFO [stderr] warning: field is never used: `right`
Dec 19 16:04:12.769 INFO [stderr]   --> src/main.rs:21:5
Dec 19 16:04:12.769 INFO [stderr]    |
Dec 19 16:04:12.769 INFO [stderr] 21 |     right: Vec<Disk>,
Dec 19 16:04:12.769 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 19 16:04:12.769 INFO [stderr] 
Dec 19 16:04:12.769 INFO [stderr] warning: method is never used: `new`
Dec 19 16:04:12.769 INFO [stderr]   --> src/main.rs:32:5
Dec 19 16:04:12.769 INFO [stderr]    |
Dec 19 16:04:12.769 INFO [stderr] 32 |     fn new(from: Peg, to: Peg) -> Move {
Dec 19 16:04:12.769 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:04:12.769 INFO [stderr] 
Dec 19 16:04:12.769 INFO [stderr] warning: variant is never constructed: `Move`
Dec 19 16:04:12.769 INFO [stderr]   --> src/main.rs:47:5
Dec 19 16:04:12.769 INFO [stderr]    |
Dec 19 16:04:12.769 INFO [stderr] 47 |     Move(Move),
Dec 19 16:04:12.769 INFO [stderr]    |     ^^^^^^^^^^
Dec 19 16:04:12.769 INFO [stderr] 
Dec 19 16:04:12.769 INFO [stderr] warning: variant is never constructed: `Quit`
Dec 19 16:04:12.769 INFO [stderr]   --> src/main.rs:49:5
Dec 19 16:04:12.769 INFO [stderr]    |
Dec 19 16:04:12.769 INFO [stderr] 49 |     Quit,
Dec 19 16:04:12.769 INFO [stderr]    |     ^^^^
Dec 19 16:04:12.769 INFO [stderr] 
Dec 19 16:04:12.769 INFO [stderr] warning: variant is never constructed: `Quit`
Dec 19 16:04:12.769 INFO [stderr]   --> src/main.rs:56:5
Dec 19 16:04:12.769 INFO [stderr]    |
Dec 19 16:04:12.769 INFO [stderr] 56 |     Quit,
Dec 19 16:04:12.769 INFO [stderr]    |     ^^^^
Dec 19 16:04:12.769 INFO [stderr] 
Dec 19 16:04:12.769 INFO [stderr] warning: variant is never constructed: `Win`
Dec 19 16:04:12.769 INFO [stderr]   --> src/main.rs:58:5
Dec 19 16:04:12.769 INFO [stderr]    |
Dec 19 16:04:12.769 INFO [stderr] 58 |     Win,
Dec 19 16:04:12.769 INFO [stderr]    |     ^^^
Dec 19 16:04:12.769 INFO [stderr] 
Dec 19 16:04:12.769 INFO [stderr] warning: variant is never constructed: `Continue`
Dec 19 16:04:12.769 INFO [stderr]   --> src/main.rs:60:5
Dec 19 16:04:12.769 INFO [stderr]    |
Dec 19 16:04:12.769 INFO [stderr] 60 |     Continue,
Dec 19 16:04:12.769 INFO [stderr]    |     ^^^^^^^^
Dec 19 16:04:12.769 INFO [stderr] 
Dec 19 16:04:12.769 INFO [stderr] warning: variant is never constructed: `UnknownCommand`
Dec 19 16:04:12.769 INFO [stderr]   --> src/main.rs:66:5
Dec 19 16:04:12.769 INFO [stderr]    |
Dec 19 16:04:12.769 INFO [stderr] 66 |     UnknownCommand,
Dec 19 16:04:12.769 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 19 16:04:12.769 INFO [stderr] 
Dec 19 16:04:12.769 INFO [stderr] warning: variant is never constructed: `UnstableStack`
Dec 19 16:04:12.769 INFO [stderr]   --> src/main.rs:68:5
Dec 19 16:04:12.769 INFO [stderr]    |
Dec 19 16:04:12.770 INFO [stderr] 68 |     UnstableStack(Peg, Disk),
Dec 19 16:04:12.770 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:04:12.770 INFO [stderr] 
Dec 19 16:04:12.770 INFO [stderr] warning: variant is never constructed: `EmptyFrom`
Dec 19 16:04:12.770 INFO [stderr]   --> src/main.rs:70:5
Dec 19 16:04:12.770 INFO [stderr]    |
Dec 19 16:04:12.770 INFO [stderr] 70 |     EmptyFrom(Peg),
Dec 19 16:04:12.770 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 19 16:04:12.770 INFO [stderr] 
Dec 19 16:04:12.770 INFO [stderr] warning: method is never used: `get_tower_mut`
Dec 19 16:04:12.770 INFO [stderr]    --> src/main.rs:106:5
Dec 19 16:04:12.770 INFO [stderr]     |
Dec 19 16:04:12.770 INFO [stderr] 106 |     fn get_tower_mut(&mut self, peg: Peg) -> &mut Vec<Disk> {
Dec 19 16:04:12.770 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:04:12.770 INFO [stderr] 
Dec 19 16:04:12.770 INFO [stderr] warning: method is never used: `pop_disk`
Dec 19 16:04:12.770 INFO [stderr]    --> src/main.rs:116:5
Dec 19 16:04:12.770 INFO [stderr]     |
Dec 19 16:04:12.770 INFO [stderr] 116 |     fn pop_disk(&mut self, peg: Peg) -> Option<Disk> {
Dec 19 16:04:12.770 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:04:12.770 INFO [stderr] 
Dec 19 16:04:12.770 INFO [stderr] warning: method is never used: `peek_disk`
Dec 19 16:04:12.770 INFO [stderr]    --> src/main.rs:121:5
Dec 19 16:04:12.770 INFO [stderr]     |
Dec 19 16:04:12.770 INFO [stderr] 121 |     fn peek_disk(&self, peg: Peg) -> Option<Disk> {
Dec 19 16:04:12.770 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:04:12.770 INFO [stderr] 
Dec 19 16:04:12.770 INFO [stderr] warning: method is never used: `push_disk`
Dec 19 16:04:12.770 INFO [stderr]    --> src/main.rs:133:5
Dec 19 16:04:12.770 INFO [stderr]     |
Dec 19 16:04:12.770 INFO [stderr] 133 |     fn push_disk(&mut self, peg: Peg, disk: Disk) -> Result<(), HanoiError> {
Dec 19 16:04:12.770 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:04:12.770 INFO [stderr] 
Dec 19 16:04:12.770 INFO [stderr] warning: method is never used: `done`
Dec 19 16:04:12.770 INFO [stderr]    --> src/main.rs:138:5
Dec 19 16:04:12.770 INFO [stderr]     |
Dec 19 16:04:12.770 INFO [stderr] 138 |     fn done(&self) -> bool {
Dec 19 16:04:12.770 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:04:12.770 INFO [stderr] 
Dec 19 16:04:12.770 INFO [stderr] warning: method is never used: `do_move`
Dec 19 16:04:12.770 INFO [stderr]    --> src/main.rs:151:5
Dec 19 16:04:12.770 INFO [stderr]     |
Dec 19 16:04:12.770 INFO [stderr] 151 |     fn do_move(&mut self, mov: Move) -> Result<NextStep, HanoiError> {
Dec 19 16:04:12.770 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:04:12.770 INFO [stderr] 
Dec 19 16:04:12.792 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
Dec 19 16:04:13.421 INFO running `"docker" "inspect" "23093627fefb7a264ac6377649d6974114fef2e591f588893cde33cec3a82b95"`
Dec 19 16:04:13.710 INFO running `"docker" "rm" "-f" "23093627fefb7a264ac6377649d6974114fef2e591f588893cde33cec3a82b95"`
Dec 19 16:04:14.034 INFO [stdout] 23093627fefb7a264ac6377649d6974114fef2e591f588893cde33cec3a82b95