Nov 17 01:18:00.269 INFO testing hmc-memsafe-2016f/wk0-starter against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 17 01:18:00.270 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-2/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt build --frozen" "-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 17 01:18:00.533 INFO [stdout] 4c71eaee5d455c501710f19f8e18fcc33554d812445b40280f3beb8d7de2c5d6
Nov 17 01:18:00.533 INFO running `"docker" "start" "-a" "4c71eaee5d455c501710f19f8e18fcc33554d812445b40280f3beb8d7de2c5d6"`
Nov 17 01:18:01.045 INFO [stderr] usermod: no changes
Nov 17 01:18:01.089 INFO [stderr]    Compiling wk0-starter v0.1.0 (/source)
Nov 17 01:18:01.395 INFO [stderr] warning: unused variable: `input`
Nov 17 01:18:01.395 INFO [stderr]   --> src/main.rs:94:17
Nov 17 01:18:01.395 INFO [stderr]    |
Nov 17 01:18:01.395 INFO [stderr] 94 | fn parse_action(input: &str) -> Result<Action,HanoiError> {
Nov 17 01:18:01.395 INFO [stderr]    |                 ^^^^^ help: consider using `_input` instead
Nov 17 01:18:01.395 INFO [stderr]    |
Nov 17 01:18:01.395 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 17 01:18:01.395 INFO [stderr] 
Nov 17 01:18:01.395 INFO [stderr] warning: unused variable: `action`
Nov 17 01:18:01.395 INFO [stderr]    --> src/main.rs:198:77
Nov 17 01:18:01.395 INFO [stderr]     |
Nov 17 01:18:01.395 INFO [stderr] 198 |         let next_step_or_err = parse_action(line.as_str().trim()).and_then(|action| {
Nov 17 01:18:01.395 INFO [stderr]     |                                                                             ^^^^^^ help: consider using `_action` instead
Nov 17 01:18:01.395 INFO [stderr] 
Nov 17 01:18:01.395 INFO [stderr] warning: unused variable: `from`
Nov 17 01:18:01.395 INFO [stderr]   --> src/main.rs:32:12
Nov 17 01:18:01.395 INFO [stderr]    |
Nov 17 01:18:01.395 INFO [stderr] 32 |     fn new(from: Peg, to: Peg) -> Move {
Nov 17 01:18:01.395 INFO [stderr]    |            ^^^^ help: consider using `_from` instead
Nov 17 01:18:01.395 INFO [stderr] 
Nov 17 01:18:01.395 INFO [stderr] warning: unused variable: `to`
Nov 17 01:18:01.395 INFO [stderr]   --> src/main.rs:32:23
Nov 17 01:18:01.395 INFO [stderr]    |
Nov 17 01:18:01.395 INFO [stderr] 32 |     fn new(from: Peg, to: Peg) -> Move {
Nov 17 01:18:01.395 INFO [stderr]    |                       ^^ help: consider using `_to` instead
Nov 17 01:18:01.395 INFO [stderr] 
Nov 17 01:18:01.395 INFO [stderr] warning: unused variable: `peg`
Nov 17 01:18:01.395 INFO [stderr]   --> src/main.rs:77:39
Nov 17 01:18:01.395 INFO [stderr]    |
Nov 17 01:18:01.395 INFO [stderr] 77 |             HanoiError::UnstableStack(peg, Disk(size)) => unimplemented!(),
Nov 17 01:18:01.395 INFO [stderr]    |                                       ^^^ help: consider using `_peg` instead
Nov 17 01:18:01.395 INFO [stderr] 
Nov 17 01:18:01.395 INFO [stderr] warning: unused variable: `size`
Nov 17 01:18:01.395 INFO [stderr]   --> src/main.rs:77:49
Nov 17 01:18:01.395 INFO [stderr]    |
Nov 17 01:18:01.395 INFO [stderr] 77 |             HanoiError::UnstableStack(peg, Disk(size)) => unimplemented!(),
Nov 17 01:18:01.395 INFO [stderr]    |                                                 ^^^^ help: consider using `_size` instead
Nov 17 01:18:01.396 INFO [stderr] 
Nov 17 01:18:01.396 INFO [stderr] warning: unused variable: `peg`
Nov 17 01:18:01.396 INFO [stderr]   --> src/main.rs:78:35
Nov 17 01:18:01.396 INFO [stderr]    |
Nov 17 01:18:01.396 INFO [stderr] 78 |             HanoiError::EmptyFrom(peg) => unimplemented!(),
Nov 17 01:18:01.396 INFO [stderr]    |                                   ^^^ help: consider using `_peg` instead
Nov 17 01:18:01.396 INFO [stderr] 
Nov 17 01:18:01.396 INFO [stderr] warning: unused variable: `disks`
Nov 17 01:18:01.396 INFO [stderr]    --> src/main.rs:101:12
Nov 17 01:18:01.396 INFO [stderr]     |
Nov 17 01:18:01.396 INFO [stderr] 101 |     fn new(disks: u8) -> State {
Nov 17 01:18:01.396 INFO [stderr]     |            ^^^^^ help: consider using `_disks` instead
Nov 17 01:18:01.396 INFO [stderr] 
Nov 17 01:18:01.396 INFO [stderr] warning: unused variable: `peg`
Nov 17 01:18:01.396 INFO [stderr]    --> src/main.rs:106:33
Nov 17 01:18:01.396 INFO [stderr]     |
Nov 17 01:18:01.396 INFO [stderr] 106 |     fn get_tower_mut(&mut self, peg: Peg) -> &mut Vec<Disk> {
Nov 17 01:18:01.396 INFO [stderr]     |                                 ^^^ help: consider using `_peg` instead
Nov 17 01:18:01.396 INFO [stderr] 
Nov 17 01:18:01.396 INFO [stderr] warning: unused variable: `peg`
Nov 17 01:18:01.396 INFO [stderr]    --> src/main.rs:111:25
Nov 17 01:18:01.396 INFO [stderr]     |
Nov 17 01:18:01.396 INFO [stderr] 111 |     fn get_tower(&self, peg: Peg) -> &Vec<Disk> {
Nov 17 01:18:01.396 INFO [stderr]     |                         ^^^ help: consider using `_peg` instead
Nov 17 01:18:01.396 INFO [stderr] 
Nov 17 01:18:01.396 INFO [stderr] warning: unused variable: `peg`
Nov 17 01:18:01.396 INFO [stderr]    --> src/main.rs:116:28
Nov 17 01:18:01.396 INFO [stderr]     |
Nov 17 01:18:01.396 INFO [stderr] 116 |     fn pop_disk(&mut self, peg: Peg) -> Option<Disk> {
Nov 17 01:18:01.396 INFO [stderr]     |                            ^^^ help: consider using `_peg` instead
Nov 17 01:18:01.396 INFO [stderr] 
Nov 17 01:18:01.396 INFO [stderr] warning: unused variable: `peg`
Nov 17 01:18:01.396 INFO [stderr]    --> src/main.rs:133:29
Nov 17 01:18:01.396 INFO [stderr]     |
Nov 17 01:18:01.396 INFO [stderr] 133 |     fn push_disk(&mut self, peg: Peg, disk: Disk) -> Result<(), HanoiError> {
Nov 17 01:18:01.396 INFO [stderr]     |                             ^^^ help: consider using `_peg` instead
Nov 17 01:18:01.396 INFO [stderr] 
Nov 17 01:18:01.396 INFO [stderr] warning: unused variable: `disk`
Nov 17 01:18:01.396 INFO [stderr]    --> src/main.rs:133:39
Nov 17 01:18:01.396 INFO [stderr]     |
Nov 17 01:18:01.396 INFO [stderr] 133 |     fn push_disk(&mut self, peg: Peg, disk: Disk) -> Result<(), HanoiError> {
Nov 17 01:18:01.396 INFO [stderr]     |                                       ^^^^ help: consider using `_disk` instead
Nov 17 01:18:01.396 INFO [stderr] 
Nov 17 01:18:01.396 INFO [stderr] warning: unused variable: `mov`
Nov 17 01:18:01.396 INFO [stderr]    --> src/main.rs:151:27
Nov 17 01:18:01.396 INFO [stderr]     |
Nov 17 01:18:01.396 INFO [stderr] 151 |     fn do_move(&mut self, mov: Move) -> Result<NextStep, HanoiError> {
Nov 17 01:18:01.396 INFO [stderr]     |                           ^^^ help: consider using `_mov` instead
Nov 17 01:18:01.396 INFO [stderr] 
Nov 17 01:18:01.425 INFO [stderr] warning: variable does not need to be mutable
Nov 17 01:18:01.425 INFO [stderr]    --> src/main.rs:188:9
Nov 17 01:18:01.425 INFO [stderr]     |
Nov 17 01:18:01.425 INFO [stderr] 188 |     let mut state = State::new(user_start_size.unwrap_or(START_SIZE));
Nov 17 01:18:01.425 INFO [stderr]     |         ----^^^^^
Nov 17 01:18:01.425 INFO [stderr]     |         |
Nov 17 01:18:01.425 INFO [stderr]     |         help: remove this `mut`
Nov 17 01:18:01.425 INFO [stderr]     |
Nov 17 01:18:01.425 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 17 01:18:01.425 INFO [stderr] 
Nov 17 01:18:01.425 INFO [stderr] warning: field is never used: `left`
Nov 17 01:18:01.425 INFO [stderr]   --> src/main.rs:19:5
Nov 17 01:18:01.425 INFO [stderr]    |
Nov 17 01:18:01.425 INFO [stderr] 19 |     left: Vec<Disk>,
Nov 17 01:18:01.425 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 17 01:18:01.425 INFO [stderr]    |
Nov 17 01:18:01.425 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 17 01:18:01.425 INFO [stderr] 
Nov 17 01:18:01.425 INFO [stderr] warning: field is never used: `center`
Nov 17 01:18:01.425 INFO [stderr]   --> src/main.rs:20:5
Nov 17 01:18:01.425 INFO [stderr]    |
Nov 17 01:18:01.425 INFO [stderr] 20 |     center: Vec<Disk>,
Nov 17 01:18:01.425 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Nov 17 01:18:01.425 INFO [stderr] 
Nov 17 01:18:01.426 INFO [stderr] warning: field is never used: `right`
Nov 17 01:18:01.426 INFO [stderr]   --> src/main.rs:21:5
Nov 17 01:18:01.426 INFO [stderr]    |
Nov 17 01:18:01.426 INFO [stderr] 21 |     right: Vec<Disk>,
Nov 17 01:18:01.426 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Nov 17 01:18:01.426 INFO [stderr] 
Nov 17 01:18:01.426 INFO [stderr] warning: method is never used: `new`
Nov 17 01:18:01.426 INFO [stderr]   --> src/main.rs:32:5
Nov 17 01:18:01.426 INFO [stderr]    |
Nov 17 01:18:01.426 INFO [stderr] 32 |     fn new(from: Peg, to: Peg) -> Move {
Nov 17 01:18:01.426 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:18:01.426 INFO [stderr] 
Nov 17 01:18:01.426 INFO [stderr] warning: variant is never constructed: `Move`
Nov 17 01:18:01.426 INFO [stderr]   --> src/main.rs:47:5
Nov 17 01:18:01.426 INFO [stderr]    |
Nov 17 01:18:01.426 INFO [stderr] 47 |     Move(Move),
Nov 17 01:18:01.426 INFO [stderr]    |     ^^^^^^^^^^
Nov 17 01:18:01.426 INFO [stderr] 
Nov 17 01:18:01.426 INFO [stderr] warning: variant is never constructed: `Quit`
Nov 17 01:18:01.426 INFO [stderr]   --> src/main.rs:49:5
Nov 17 01:18:01.426 INFO [stderr]    |
Nov 17 01:18:01.426 INFO [stderr] 49 |     Quit,
Nov 17 01:18:01.426 INFO [stderr]    |     ^^^^
Nov 17 01:18:01.426 INFO [stderr] 
Nov 17 01:18:01.426 INFO [stderr] warning: variant is never constructed: `Quit`
Nov 17 01:18:01.426 INFO [stderr]   --> src/main.rs:56:5
Nov 17 01:18:01.426 INFO [stderr]    |
Nov 17 01:18:01.426 INFO [stderr] 56 |     Quit,
Nov 17 01:18:01.426 INFO [stderr]    |     ^^^^
Nov 17 01:18:01.426 INFO [stderr] 
Nov 17 01:18:01.426 INFO [stderr] warning: variant is never constructed: `Win`
Nov 17 01:18:01.426 INFO [stderr]   --> src/main.rs:58:5
Nov 17 01:18:01.426 INFO [stderr]    |
Nov 17 01:18:01.426 INFO [stderr] 58 |     Win,
Nov 17 01:18:01.426 INFO [stderr]    |     ^^^
Nov 17 01:18:01.426 INFO [stderr] 
Nov 17 01:18:01.426 INFO [stderr] warning: variant is never constructed: `Continue`
Nov 17 01:18:01.426 INFO [stderr]   --> src/main.rs:60:5
Nov 17 01:18:01.426 INFO [stderr]    |
Nov 17 01:18:01.426 INFO [stderr] 60 |     Continue,
Nov 17 01:18:01.426 INFO [stderr]    |     ^^^^^^^^
Nov 17 01:18:01.426 INFO [stderr] 
Nov 17 01:18:01.426 INFO [stderr] warning: variant is never constructed: `UnknownCommand`
Nov 17 01:18:01.426 INFO [stderr]   --> src/main.rs:66:5
Nov 17 01:18:01.426 INFO [stderr]    |
Nov 17 01:18:01.426 INFO [stderr] 66 |     UnknownCommand,
Nov 17 01:18:01.426 INFO [stderr]    |     ^^^^^^^^^^^^^^
Nov 17 01:18:01.426 INFO [stderr] 
Nov 17 01:18:01.426 INFO [stderr] warning: variant is never constructed: `UnstableStack`
Nov 17 01:18:01.426 INFO [stderr]   --> src/main.rs:68:5
Nov 17 01:18:01.426 INFO [stderr]    |
Nov 17 01:18:01.426 INFO [stderr] 68 |     UnstableStack(Peg, Disk),
Nov 17 01:18:01.426 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:18:01.426 INFO [stderr] 
Nov 17 01:18:01.426 INFO [stderr] warning: variant is never constructed: `EmptyFrom`
Nov 17 01:18:01.426 INFO [stderr]   --> src/main.rs:70:5
Nov 17 01:18:01.426 INFO [stderr]    |
Nov 17 01:18:01.426 INFO [stderr] 70 |     EmptyFrom(Peg),
Nov 17 01:18:01.426 INFO [stderr]    |     ^^^^^^^^^^^^^^
Nov 17 01:18:01.426 INFO [stderr] 
Nov 17 01:18:01.426 INFO [stderr] warning: method is never used: `get_tower_mut`
Nov 17 01:18:01.426 INFO [stderr]    --> src/main.rs:106:5
Nov 17 01:18:01.426 INFO [stderr]     |
Nov 17 01:18:01.426 INFO [stderr] 106 |     fn get_tower_mut(&mut self, peg: Peg) -> &mut Vec<Disk> {
Nov 17 01:18:01.426 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:18:01.426 INFO [stderr] 
Nov 17 01:18:01.426 INFO [stderr] warning: method is never used: `pop_disk`
Nov 17 01:18:01.426 INFO [stderr]    --> src/main.rs:116:5
Nov 17 01:18:01.426 INFO [stderr]     |
Nov 17 01:18:01.426 INFO [stderr] 116 |     fn pop_disk(&mut self, peg: Peg) -> Option<Disk> {
Nov 17 01:18:01.426 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:18:01.426 INFO [stderr] 
Nov 17 01:18:01.426 INFO [stderr] warning: method is never used: `peek_disk`
Nov 17 01:18:01.426 INFO [stderr]    --> src/main.rs:121:5
Nov 17 01:18:01.426 INFO [stderr]     |
Nov 17 01:18:01.426 INFO [stderr] 121 |     fn peek_disk(&self, peg: Peg) -> Option<Disk> {
Nov 17 01:18:01.426 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:18:01.426 INFO [stderr] 
Nov 17 01:18:01.426 INFO [stderr] warning: method is never used: `push_disk`
Nov 17 01:18:01.426 INFO [stderr]    --> src/main.rs:133:5
Nov 17 01:18:01.427 INFO [stderr]     |
Nov 17 01:18:01.427 INFO [stderr] 133 |     fn push_disk(&mut self, peg: Peg, disk: Disk) -> Result<(), HanoiError> {
Nov 17 01:18:01.427 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:18:01.427 INFO [stderr] 
Nov 17 01:18:01.427 INFO [stderr] warning: method is never used: `done`
Nov 17 01:18:01.427 INFO [stderr]    --> src/main.rs:138:5
Nov 17 01:18:01.427 INFO [stderr]     |
Nov 17 01:18:01.427 INFO [stderr] 138 |     fn done(&self) -> bool {
Nov 17 01:18:01.427 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:18:01.427 INFO [stderr] 
Nov 17 01:18:01.427 INFO [stderr] warning: method is never used: `do_move`
Nov 17 01:18:01.427 INFO [stderr]    --> src/main.rs:151:5
Nov 17 01:18:01.427 INFO [stderr]     |
Nov 17 01:18:01.427 INFO [stderr] 151 |     fn do_move(&mut self, mov: Move) -> Result<NextStep, HanoiError> {
Nov 17 01:18:01.427 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:18:01.427 INFO [stderr] 
Nov 17 01:18:01.845 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
Nov 17 01:18:01.848 INFO [stderr] su: No module specific data is present
Nov 17 01:18:02.423 INFO running `"docker" "inspect" "4c71eaee5d455c501710f19f8e18fcc33554d812445b40280f3beb8d7de2c5d6"`
Nov 17 01:18:02.609 INFO running `"docker" "rm" "-f" "4c71eaee5d455c501710f19f8e18fcc33554d812445b40280f3beb8d7de2c5d6"`
Nov 17 01:18:02.719 INFO [stdout] 4c71eaee5d455c501710f19f8e18fcc33554d812445b40280f3beb8d7de2c5d6
Nov 17 01:18:02.721 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-2/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt test --frozen --no-run" "-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 17 01:18:02.866 INFO [stdout] ed0ec7e3c9db4da3c2ea417be893e1ef2f50f0e3df373e21825409b897d6ce39
Nov 17 01:18:02.868 INFO running `"docker" "start" "-a" "ed0ec7e3c9db4da3c2ea417be893e1ef2f50f0e3df373e21825409b897d6ce39"`
Nov 17 01:18:03.409 INFO [stderr] usermod: no changes
Nov 17 01:18:03.438 INFO [stderr]    Compiling wk0-starter v0.1.0 (/source)
Nov 17 01:18:03.751 INFO [stderr] warning: unused variable: `input`
Nov 17 01:18:03.751 INFO [stderr]   --> src/main.rs:94:17
Nov 17 01:18:03.751 INFO [stderr]    |
Nov 17 01:18:03.751 INFO [stderr] 94 | fn parse_action(input: &str) -> Result<Action,HanoiError> {
Nov 17 01:18:03.751 INFO [stderr]    |                 ^^^^^ help: consider using `_input` instead
Nov 17 01:18:03.751 INFO [stderr]    |
Nov 17 01:18:03.751 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 17 01:18:03.751 INFO [stderr] 
Nov 17 01:18:03.751 INFO [stderr] warning: unused variable: `action`
Nov 17 01:18:03.751 INFO [stderr]    --> src/main.rs:198:77
Nov 17 01:18:03.751 INFO [stderr]     |
Nov 17 01:18:03.751 INFO [stderr] 198 |         let next_step_or_err = parse_action(line.as_str().trim()).and_then(|action| {
Nov 17 01:18:03.751 INFO [stderr]     |                                                                             ^^^^^^ help: consider using `_action` instead
Nov 17 01:18:03.751 INFO [stderr] 
Nov 17 01:18:03.751 INFO [stderr] warning: unused variable: `from`
Nov 17 01:18:03.751 INFO [stderr]   --> src/main.rs:32:12
Nov 17 01:18:03.751 INFO [stderr]    |
Nov 17 01:18:03.751 INFO [stderr] 32 |     fn new(from: Peg, to: Peg) -> Move {
Nov 17 01:18:03.751 INFO [stderr]    |            ^^^^ help: consider using `_from` instead
Nov 17 01:18:03.751 INFO [stderr] 
Nov 17 01:18:03.751 INFO [stderr] warning: unused variable: `to`
Nov 17 01:18:03.751 INFO [stderr]   --> src/main.rs:32:23
Nov 17 01:18:03.751 INFO [stderr]    |
Nov 17 01:18:03.751 INFO [stderr] 32 |     fn new(from: Peg, to: Peg) -> Move {
Nov 17 01:18:03.751 INFO [stderr]    |                       ^^ help: consider using `_to` instead
Nov 17 01:18:03.751 INFO [stderr] 
Nov 17 01:18:03.751 INFO [stderr] warning: unused variable: `peg`
Nov 17 01:18:03.751 INFO [stderr]   --> src/main.rs:77:39
Nov 17 01:18:03.751 INFO [stderr]    |
Nov 17 01:18:03.751 INFO [stderr] 77 |             HanoiError::UnstableStack(peg, Disk(size)) => unimplemented!(),
Nov 17 01:18:03.751 INFO [stderr]    |                                       ^^^ help: consider using `_peg` instead
Nov 17 01:18:03.751 INFO [stderr] 
Nov 17 01:18:03.751 INFO [stderr] warning: unused variable: `size`
Nov 17 01:18:03.751 INFO [stderr]   --> src/main.rs:77:49
Nov 17 01:18:03.751 INFO [stderr]    |
Nov 17 01:18:03.751 INFO [stderr] 77 |             HanoiError::UnstableStack(peg, Disk(size)) => unimplemented!(),
Nov 17 01:18:03.751 INFO [stderr]    |                                                 ^^^^ help: consider using `_size` instead
Nov 17 01:18:03.751 INFO [stderr] 
Nov 17 01:18:03.751 INFO [stderr] warning: unused variable: `peg`
Nov 17 01:18:03.751 INFO [stderr]   --> src/main.rs:78:35
Nov 17 01:18:03.751 INFO [stderr]    |
Nov 17 01:18:03.751 INFO [stderr] 78 |             HanoiError::EmptyFrom(peg) => unimplemented!(),
Nov 17 01:18:03.751 INFO [stderr]    |                                   ^^^ help: consider using `_peg` instead
Nov 17 01:18:03.751 INFO [stderr] 
Nov 17 01:18:03.751 INFO [stderr] warning: unused variable: `disks`
Nov 17 01:18:03.751 INFO [stderr]    --> src/main.rs:101:12
Nov 17 01:18:03.751 INFO [stderr]     |
Nov 17 01:18:03.751 INFO [stderr] 101 |     fn new(disks: u8) -> State {
Nov 17 01:18:03.751 INFO [stderr]     |            ^^^^^ help: consider using `_disks` instead
Nov 17 01:18:03.751 INFO [stderr] 
Nov 17 01:18:03.751 INFO [stderr] warning: unused variable: `peg`
Nov 17 01:18:03.751 INFO [stderr]    --> src/main.rs:106:33
Nov 17 01:18:03.751 INFO [stderr]     |
Nov 17 01:18:03.751 INFO [stderr] 106 |     fn get_tower_mut(&mut self, peg: Peg) -> &mut Vec<Disk> {
Nov 17 01:18:03.751 INFO [stderr]     |                                 ^^^ help: consider using `_peg` instead
Nov 17 01:18:03.751 INFO [stderr] 
Nov 17 01:18:03.751 INFO [stderr] warning: unused variable: `peg`
Nov 17 01:18:03.751 INFO [stderr]    --> src/main.rs:111:25
Nov 17 01:18:03.751 INFO [stderr]     |
Nov 17 01:18:03.751 INFO [stderr] 111 |     fn get_tower(&self, peg: Peg) -> &Vec<Disk> {
Nov 17 01:18:03.751 INFO [stderr]     |                         ^^^ help: consider using `_peg` instead
Nov 17 01:18:03.751 INFO [stderr] 
Nov 17 01:18:03.751 INFO [stderr] warning: unused variable: `peg`
Nov 17 01:18:03.751 INFO [stderr]    --> src/main.rs:116:28
Nov 17 01:18:03.751 INFO [stderr]     |
Nov 17 01:18:03.751 INFO [stderr] 116 |     fn pop_disk(&mut self, peg: Peg) -> Option<Disk> {
Nov 17 01:18:03.751 INFO [stderr]     |                            ^^^ help: consider using `_peg` instead
Nov 17 01:18:03.751 INFO [stderr] 
Nov 17 01:18:03.751 INFO [stderr] warning: unused variable: `peg`
Nov 17 01:18:03.751 INFO [stderr]    --> src/main.rs:133:29
Nov 17 01:18:03.751 INFO [stderr]     |
Nov 17 01:18:03.751 INFO [stderr] 133 |     fn push_disk(&mut self, peg: Peg, disk: Disk) -> Result<(), HanoiError> {
Nov 17 01:18:03.751 INFO [stderr]     |                             ^^^ help: consider using `_peg` instead
Nov 17 01:18:03.751 INFO [stderr] 
Nov 17 01:18:03.751 INFO [stderr] warning: unused variable: `disk`
Nov 17 01:18:03.751 INFO [stderr]    --> src/main.rs:133:39
Nov 17 01:18:03.751 INFO [stderr]     |
Nov 17 01:18:03.751 INFO [stderr] 133 |     fn push_disk(&mut self, peg: Peg, disk: Disk) -> Result<(), HanoiError> {
Nov 17 01:18:03.751 INFO [stderr]     |                                       ^^^^ help: consider using `_disk` instead
Nov 17 01:18:03.751 INFO [stderr] 
Nov 17 01:18:03.751 INFO [stderr] warning: unused variable: `mov`
Nov 17 01:18:03.751 INFO [stderr]    --> src/main.rs:151:27
Nov 17 01:18:03.751 INFO [stderr]     |
Nov 17 01:18:03.751 INFO [stderr] 151 |     fn do_move(&mut self, mov: Move) -> Result<NextStep, HanoiError> {
Nov 17 01:18:03.751 INFO [stderr]     |                           ^^^ help: consider using `_mov` instead
Nov 17 01:18:03.751 INFO [stderr] 
Nov 17 01:18:03.776 INFO [stderr] warning: variable does not need to be mutable
Nov 17 01:18:03.776 INFO [stderr]    --> src/main.rs:188:9
Nov 17 01:18:03.776 INFO [stderr]     |
Nov 17 01:18:03.776 INFO [stderr] 188 |     let mut state = State::new(user_start_size.unwrap_or(START_SIZE));
Nov 17 01:18:03.776 INFO [stderr]     |         ----^^^^^
Nov 17 01:18:03.776 INFO [stderr]     |         |
Nov 17 01:18:03.776 INFO [stderr]     |         help: remove this `mut`
Nov 17 01:18:03.776 INFO [stderr]     |
Nov 17 01:18:03.776 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 17 01:18:03.776 INFO [stderr] 
Nov 17 01:18:03.776 INFO [stderr] warning: field is never used: `left`
Nov 17 01:18:03.776 INFO [stderr]   --> src/main.rs:19:5
Nov 17 01:18:03.776 INFO [stderr]    |
Nov 17 01:18:03.776 INFO [stderr] 19 |     left: Vec<Disk>,
Nov 17 01:18:03.776 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 17 01:18:03.776 INFO [stderr]    |
Nov 17 01:18:03.776 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 17 01:18:03.777 INFO [stderr] 
Nov 17 01:18:03.777 INFO [stderr] warning: field is never used: `center`
Nov 17 01:18:03.777 INFO [stderr]   --> src/main.rs:20:5
Nov 17 01:18:03.777 INFO [stderr]    |
Nov 17 01:18:03.777 INFO [stderr] 20 |     center: Vec<Disk>,
Nov 17 01:18:03.777 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Nov 17 01:18:03.777 INFO [stderr] 
Nov 17 01:18:03.777 INFO [stderr] warning: field is never used: `right`
Nov 17 01:18:03.777 INFO [stderr]   --> src/main.rs:21:5
Nov 17 01:18:03.777 INFO [stderr]    |
Nov 17 01:18:03.777 INFO [stderr] 21 |     right: Vec<Disk>,
Nov 17 01:18:03.777 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Nov 17 01:18:03.777 INFO [stderr] 
Nov 17 01:18:03.777 INFO [stderr] warning: method is never used: `new`
Nov 17 01:18:03.777 INFO [stderr]   --> src/main.rs:32:5
Nov 17 01:18:03.777 INFO [stderr]    |
Nov 17 01:18:03.777 INFO [stderr] 32 |     fn new(from: Peg, to: Peg) -> Move {
Nov 17 01:18:03.777 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:18:03.777 INFO [stderr] 
Nov 17 01:18:03.777 INFO [stderr] warning: variant is never constructed: `Move`
Nov 17 01:18:03.777 INFO [stderr]   --> src/main.rs:47:5
Nov 17 01:18:03.777 INFO [stderr]    |
Nov 17 01:18:03.777 INFO [stderr] 47 |     Move(Move),
Nov 17 01:18:03.777 INFO [stderr]    |     ^^^^^^^^^^
Nov 17 01:18:03.777 INFO [stderr] 
Nov 17 01:18:03.777 INFO [stderr] warning: variant is never constructed: `Quit`
Nov 17 01:18:03.777 INFO [stderr]   --> src/main.rs:49:5
Nov 17 01:18:03.777 INFO [stderr]    |
Nov 17 01:18:03.777 INFO [stderr] 49 |     Quit,
Nov 17 01:18:03.777 INFO [stderr]    |     ^^^^
Nov 17 01:18:03.777 INFO [stderr] 
Nov 17 01:18:03.777 INFO [stderr] warning: variant is never constructed: `Quit`
Nov 17 01:18:03.778 INFO [stderr]   --> src/main.rs:56:5
Nov 17 01:18:03.778 INFO [stderr]    |
Nov 17 01:18:03.778 INFO [stderr] 56 |     Quit,
Nov 17 01:18:03.778 INFO [stderr]    |     ^^^^
Nov 17 01:18:03.778 INFO [stderr] 
Nov 17 01:18:03.778 INFO [stderr] warning: variant is never constructed: `Win`
Nov 17 01:18:03.778 INFO [stderr]   --> src/main.rs:58:5
Nov 17 01:18:03.778 INFO [stderr]    |
Nov 17 01:18:03.778 INFO [stderr] 58 |     Win,
Nov 17 01:18:03.778 INFO [stderr]    |     ^^^
Nov 17 01:18:03.778 INFO [stderr] 
Nov 17 01:18:03.778 INFO [stderr] warning: variant is never constructed: `Continue`
Nov 17 01:18:03.778 INFO [stderr]   --> src/main.rs:60:5
Nov 17 01:18:03.778 INFO [stderr]    |
Nov 17 01:18:03.778 INFO [stderr] 60 |     Continue,
Nov 17 01:18:03.778 INFO [stderr]    |     ^^^^^^^^
Nov 17 01:18:03.778 INFO [stderr] 
Nov 17 01:18:03.778 INFO [stderr] warning: variant is never constructed: `UnknownCommand`
Nov 17 01:18:03.778 INFO [stderr]   --> src/main.rs:66:5
Nov 17 01:18:03.778 INFO [stderr]    |
Nov 17 01:18:03.778 INFO [stderr] 66 |     UnknownCommand,
Nov 17 01:18:03.778 INFO [stderr]    |     ^^^^^^^^^^^^^^
Nov 17 01:18:03.778 INFO [stderr] 
Nov 17 01:18:03.778 INFO [stderr] warning: variant is never constructed: `UnstableStack`
Nov 17 01:18:03.778 INFO [stderr]   --> src/main.rs:68:5
Nov 17 01:18:03.778 INFO [stderr]    |
Nov 17 01:18:03.778 INFO [stderr] 68 |     UnstableStack(Peg, Disk),
Nov 17 01:18:03.778 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:18:03.778 INFO [stderr] 
Nov 17 01:18:03.778 INFO [stderr] warning: variant is never constructed: `EmptyFrom`
Nov 17 01:18:03.778 INFO [stderr]   --> src/main.rs:70:5
Nov 17 01:18:03.778 INFO [stderr]    |
Nov 17 01:18:03.778 INFO [stderr] 70 |     EmptyFrom(Peg),
Nov 17 01:18:03.778 INFO [stderr]    |     ^^^^^^^^^^^^^^
Nov 17 01:18:03.778 INFO [stderr] 
Nov 17 01:18:03.778 INFO [stderr] warning: method is never used: `get_tower_mut`
Nov 17 01:18:03.778 INFO [stderr]    --> src/main.rs:106:5
Nov 17 01:18:03.778 INFO [stderr]     |
Nov 17 01:18:03.778 INFO [stderr] 106 |     fn get_tower_mut(&mut self, peg: Peg) -> &mut Vec<Disk> {
Nov 17 01:18:03.778 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:18:03.778 INFO [stderr] 
Nov 17 01:18:03.778 INFO [stderr] warning: method is never used: `pop_disk`
Nov 17 01:18:03.778 INFO [stderr]    --> src/main.rs:116:5
Nov 17 01:18:03.778 INFO [stderr]     |
Nov 17 01:18:03.778 INFO [stderr] 116 |     fn pop_disk(&mut self, peg: Peg) -> Option<Disk> {
Nov 17 01:18:03.778 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:18:03.778 INFO [stderr] 
Nov 17 01:18:03.778 INFO [stderr] warning: method is never used: `peek_disk`
Nov 17 01:18:03.778 INFO [stderr]    --> src/main.rs:121:5
Nov 17 01:18:03.778 INFO [stderr]     |
Nov 17 01:18:03.778 INFO [stderr] 121 |     fn peek_disk(&self, peg: Peg) -> Option<Disk> {
Nov 17 01:18:03.778 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:18:03.778 INFO [stderr] 
Nov 17 01:18:03.778 INFO [stderr] warning: method is never used: `push_disk`
Nov 17 01:18:03.778 INFO [stderr]    --> src/main.rs:133:5
Nov 17 01:18:03.778 INFO [stderr]     |
Nov 17 01:18:03.778 INFO [stderr] 133 |     fn push_disk(&mut self, peg: Peg, disk: Disk) -> Result<(), HanoiError> {
Nov 17 01:18:03.778 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:18:03.778 INFO [stderr] 
Nov 17 01:18:03.778 INFO [stderr] warning: method is never used: `done`
Nov 17 01:18:03.778 INFO [stderr]    --> src/main.rs:138:5
Nov 17 01:18:03.778 INFO [stderr]     |
Nov 17 01:18:03.778 INFO [stderr] 138 |     fn done(&self) -> bool {
Nov 17 01:18:03.778 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:18:03.778 INFO [stderr] 
Nov 17 01:18:03.778 INFO [stderr] warning: method is never used: `do_move`
Nov 17 01:18:03.778 INFO [stderr]    --> src/main.rs:151:5
Nov 17 01:18:03.778 INFO [stderr]     |
Nov 17 01:18:03.778 INFO [stderr] 151 |     fn do_move(&mut self, mov: Move) -> Result<NextStep, HanoiError> {
Nov 17 01:18:03.778 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:18:03.778 INFO [stderr] 
Nov 17 01:18:03.999 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
Nov 17 01:18:04.001 INFO [stderr] su: No module specific data is present
Nov 17 01:18:04.277 INFO running `"docker" "inspect" "ed0ec7e3c9db4da3c2ea417be893e1ef2f50f0e3df373e21825409b897d6ce39"`
Nov 17 01:18:04.374 INFO running `"docker" "rm" "-f" "ed0ec7e3c9db4da3c2ea417be893e1ef2f50f0e3df373e21825409b897d6ce39"`
Nov 17 01:18:04.449 INFO [stdout] ed0ec7e3c9db4da3c2ea417be893e1ef2f50f0e3df373e21825409b897d6ce39
Nov 17 01:18:04.451 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-2/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt test --frozen" "-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 17 01:18:04.667 INFO [stdout] e2540a38789a706cb8071acbe0e1b3fc37f3b8875e99786113700f61681c518c
Nov 17 01:18:04.668 INFO running `"docker" "start" "-a" "e2540a38789a706cb8071acbe0e1b3fc37f3b8875e99786113700f61681c518c"`
Nov 17 01:18:05.123 INFO [stderr] usermod: no changes
Nov 17 01:18:05.155 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Nov 17 01:18:05.159 INFO [stderr]      Running /target/debug/deps/wk0_starter-93922f5d4d3b872e
Nov 17 01:18:05.161 INFO [stdout] 
Nov 17 01:18:05.162 INFO [stdout] running 0 tests
Nov 17 01:18:05.162 INFO [stdout] 
Nov 17 01:18:05.162 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 01:18:05.162 INFO [stdout] 
Nov 17 01:18:05.162 INFO [stderr] su: No module specific data is present
Nov 17 01:18:05.415 INFO running `"docker" "inspect" "e2540a38789a706cb8071acbe0e1b3fc37f3b8875e99786113700f61681c518c"`
Nov 17 01:18:05.504 INFO running `"docker" "rm" "-f" "e2540a38789a706cb8071acbe0e1b3fc37f3b8875e99786113700f61681c518c"`
Nov 17 01:18:05.617 INFO [stdout] e2540a38789a706cb8071acbe0e1b3fc37f3b8875e99786113700f61681c518c