Nov 06 20:41:52.618 INFO checking ijks/piet-rs against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a for pr-55687
Nov 06 20:41:52.618 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-0/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55687/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/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 +24e66c28980442a48d9458f1a4f9b76cc722dc8a-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 06 20:41:53.068 INFO blam! 54f0dc3aee1205dd0c0c74f38ad8c22860598520d7b8428e5c38e8339e16445e
Nov 06 20:41:53.070 INFO running `"docker" "start" "-a" "54f0dc3aee1205dd0c0c74f38ad8c22860598520d7b8428e5c38e8339e16445e"`
Nov 06 20:41:55.375 INFO kablam! usermod: no changes
Nov 06 20:41:55.648 INFO kablam!    Compiling cc v1.0.2
Nov 06 20:41:55.684 INFO kablam!     Checking num-bigint v0.1.40
Nov 06 20:41:59.816 INFO kablam!    Compiling backtrace-sys v0.1.16
Nov 06 20:42:00.308 INFO kablam!     Checking num-rational v0.1.39
Nov 06 20:42:01.949 INFO kablam!     Checking image v0.17.0
Nov 06 20:42:01.949 INFO kablam!     Checking num v0.1.40
Nov 06 20:42:18.688 INFO kablam!     Checking backtrace v0.3.3
Nov 06 20:42:19.317 INFO kablam!     Checking error-chain v0.11.0
Nov 06 20:42:20.171 INFO kablam!     Checking piet v0.1.0 (/source)
Nov 06 20:42:21.300 INFO kablam! warning: unused import: `std::cmp::Ordering`
Nov 06 20:42:21.300 INFO kablam!  --> src/interpreter.rs:1:5
Nov 06 20:42:21.300 INFO kablam!   |
Nov 06 20:42:21.300 INFO kablam! 1 | use std::cmp::Ordering;
Nov 06 20:42:21.300 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^
Nov 06 20:42:21.300 INFO kablam!   |
Nov 06 20:42:21.300 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 06 20:42:21.301 INFO kablam! 
Nov 06 20:42:21.484 INFO kablam! warning: unused import: `std::cmp::Ordering`
Nov 06 20:42:21.484 INFO kablam!  --> src/interpreter.rs:1:5
Nov 06 20:42:21.484 INFO kablam!   |
Nov 06 20:42:21.484 INFO kablam! 1 | use std::cmp::Ordering;
Nov 06 20:42:21.484 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^
Nov 06 20:42:21.484 INFO kablam!   |
Nov 06 20:42:21.486 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 06 20:42:21.486 INFO kablam! 
Nov 06 20:42:21.703 INFO kablam! warning: unused variable: `x`
Nov 06 20:42:21.703 INFO kablam!    --> src/interpreter.rs:120:29
Nov 06 20:42:21.703 INFO kablam!     |
Nov 06 20:42:21.703 INFO kablam! 120 |                 .filter(|&&(x, y)| y == farthest_y)
Nov 06 20:42:21.703 INFO kablam!     |                             ^ help: consider using `_x` instead
Nov 06 20:42:21.703 INFO kablam!     |
Nov 06 20:42:21.703 INFO kablam!     = note: #[warn(unused_variables)] on by default
Nov 06 20:42:21.705 INFO kablam! 
Nov 06 20:42:21.705 INFO kablam! warning: unused variable: `y`
Nov 06 20:42:21.705 INFO kablam!    --> src/interpreter.rs:133:32
Nov 06 20:42:21.705 INFO kablam!     |
Nov 06 20:42:21.705 INFO kablam! 133 |                 .filter(|&&(x, y)| x == farthest_x)
Nov 06 20:42:21.705 INFO kablam!     |                                ^ help: consider using `_y` instead
Nov 06 20:42:21.705 INFO kablam! 
Nov 06 20:42:21.705 INFO kablam! warning: unused variable: `height`
Nov 06 20:42:21.705 INFO kablam!   --> src/program.rs:78:21
Nov 06 20:42:21.705 INFO kablam!    |
Nov 06 20:42:21.705 INFO kablam! 78 |         let (width, height) = self.size;
Nov 06 20:42:21.705 INFO kablam!    |                     ^^^^^^ help: consider using `_height` instead
Nov 06 20:42:21.705 INFO kablam! 
Nov 06 20:42:21.832 INFO kablam! warning: variant is never constructed: `Up`
Nov 06 20:42:21.832 INFO kablam!   --> src/interpreter.rs:14:5
Nov 06 20:42:21.832 INFO kablam!    |
Nov 06 20:42:21.832 INFO kablam! 14 |     Up,
Nov 06 20:42:21.832 INFO kablam!    |     ^^
Nov 06 20:42:21.833 INFO kablam!    |
Nov 06 20:42:21.833 INFO kablam!    = note: #[warn(dead_code)] on by default
Nov 06 20:42:21.833 INFO kablam! 
Nov 06 20:42:21.833 INFO kablam! warning: variant is never constructed: `Down`
Nov 06 20:42:21.833 INFO kablam!   --> src/interpreter.rs:16:5
Nov 06 20:42:21.833 INFO kablam!    |
Nov 06 20:42:21.833 INFO kablam! 16 |     Down,
Nov 06 20:42:21.833 INFO kablam!    |     ^^^^
Nov 06 20:42:21.833 INFO kablam! 
Nov 06 20:42:21.833 INFO kablam! warning: variant is never constructed: `Left`
Nov 06 20:42:21.833 INFO kablam!   --> src/interpreter.rs:17:5
Nov 06 20:42:21.833 INFO kablam!    |
Nov 06 20:42:21.833 INFO kablam! 17 |     Left,
Nov 06 20:42:21.833 INFO kablam!    |     ^^^^
Nov 06 20:42:21.833 INFO kablam! 
Nov 06 20:42:21.833 INFO kablam! warning: method is never used: `rotate_clockwise`
Nov 06 20:42:21.833 INFO kablam!   --> src/interpreter.rs:21:5
Nov 06 20:42:21.833 INFO kablam!    |
Nov 06 20:42:21.833 INFO kablam! 21 |     pub fn rotate_clockwise(&mut self) {
Nov 06 20:42:21.833 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 20:42:21.833 INFO kablam! 
Nov 06 20:42:21.833 INFO kablam! warning: method is never used: `rotate_counterclockwise`
Nov 06 20:42:21.833 INFO kablam!   --> src/interpreter.rs:32:5
Nov 06 20:42:21.833 INFO kablam!    |
Nov 06 20:42:21.833 INFO kablam! 32 |     pub fn rotate_counterclockwise(&mut self) {
Nov 06 20:42:21.833 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 20:42:21.833 INFO kablam! 
Nov 06 20:42:21.833 INFO kablam! warning: variant is never constructed: `Right`
Nov 06 20:42:21.833 INFO kablam!   --> src/interpreter.rs:47:5
Nov 06 20:42:21.833 INFO kablam!    |
Nov 06 20:42:21.833 INFO kablam! 47 |     Right,
Nov 06 20:42:21.833 INFO kablam!    |     ^^^^^
Nov 06 20:42:21.833 INFO kablam! 
Nov 06 20:42:21.833 INFO kablam! warning: method is never used: `switch`
Nov 06 20:42:21.833 INFO kablam!   --> src/interpreter.rs:51:5
Nov 06 20:42:21.833 INFO kablam!    |
Nov 06 20:42:21.833 INFO kablam! 51 |     pub fn switch(&mut self) {
Nov 06 20:42:21.833 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 20:42:21.833 INFO kablam! 
Nov 06 20:42:21.833 INFO kablam! warning: method is never used: `current_block`
Nov 06 20:42:21.833 INFO kablam!   --> src/interpreter.rs:93:5
Nov 06 20:42:21.833 INFO kablam!    |
Nov 06 20:42:21.833 INFO kablam! 93 |     fn current_block(&self) -> HashSet<Coords> {
Nov 06 20:42:21.833 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 20:42:21.833 INFO kablam! 
Nov 06 20:42:21.833 INFO kablam! warning: method is never used: `next_coords`
Nov 06 20:42:21.833 INFO kablam!   --> src/interpreter.rs:97:5
Nov 06 20:42:21.833 INFO kablam!    |
Nov 06 20:42:21.833 INFO kablam! 97 |     fn next_coords(&self) -> Coords {
Nov 06 20:42:21.833 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 20:42:21.834 INFO kablam! 
Nov 06 20:42:21.834 INFO kablam! warning: function is never used: `x_key`
Nov 06 20:42:21.834 INFO kablam!    --> src/interpreter.rs:101:9
Nov 06 20:42:21.834 INFO kablam!     |
Nov 06 20:42:21.834 INFO kablam! 101 |         fn x_key(&(x, _): &Coords) -> usize {
Nov 06 20:42:21.834 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 20:42:21.834 INFO kablam! 
Nov 06 20:42:21.834 INFO kablam! warning: function is never used: `y_key`
Nov 06 20:42:21.834 INFO kablam!    --> src/interpreter.rs:104:9
Nov 06 20:42:21.834 INFO kablam!     |
Nov 06 20:42:21.834 INFO kablam! 104 |         fn y_key(&(_, y): &Coords) -> usize {
Nov 06 20:42:21.834 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 20:42:21.834 INFO kablam! 
Nov 06 20:42:21.834 INFO kablam! warning: method is never used: `execute_command`
Nov 06 20:42:21.834 INFO kablam!    --> src/interpreter.rs:167:5
Nov 06 20:42:21.834 INFO kablam!     |
Nov 06 20:42:21.834 INFO kablam! 167 |     fn execute_command(&mut self, command: &Command) {
Nov 06 20:42:21.834 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 20:42:21.834 INFO kablam! 
Nov 06 20:42:21.834 INFO kablam! warning: method is never used: `pointer`
Nov 06 20:42:21.834 INFO kablam!    --> src/interpreter.rs:261:5
Nov 06 20:42:21.834 INFO kablam!     |
Nov 06 20:42:21.834 INFO kablam! 261 |     fn pointer(&mut self, steps: i64) {
Nov 06 20:42:21.834 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 20:42:21.834 INFO kablam! 
Nov 06 20:42:21.834 INFO kablam! warning: method is never used: `switch`
Nov 06 20:42:21.834 INFO kablam!    --> src/interpreter.rs:273:5
Nov 06 20:42:21.834 INFO kablam!     |
Nov 06 20:42:21.834 INFO kablam! 273 |     fn switch(&mut self, times: i64) {
Nov 06 20:42:21.834 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 20:42:21.834 INFO kablam! 
Nov 06 20:42:21.834 INFO kablam! warning: method is never used: `index_to_coords`
Nov 06 20:42:21.834 INFO kablam!   --> src/program.rs:83:5
Nov 06 20:42:21.834 INFO kablam!    |
Nov 06 20:42:21.834 INFO kablam! 83 |     fn index_to_coords(&self, index: usize) -> Option<Coords> {
Nov 06 20:42:21.834 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 20:42:21.834 INFO kablam! 
Nov 06 20:42:22.372 INFO kablam! warning: unused variable: `x`
Nov 06 20:42:22.372 INFO kablam!    --> src/interpreter.rs:120:29
Nov 06 20:42:22.372 INFO kablam!     |
Nov 06 20:42:22.372 INFO kablam! 120 |                 .filter(|&&(x, y)| y == farthest_y)
Nov 06 20:42:22.372 INFO kablam!     |                             ^ help: consider using `_x` instead
Nov 06 20:42:22.372 INFO kablam!     |
Nov 06 20:42:22.376 INFO kablam!     = note: #[warn(unused_variables)] on by default
Nov 06 20:42:22.376 INFO kablam! 
Nov 06 20:42:22.376 INFO kablam! warning: unused variable: `y`
Nov 06 20:42:22.376 INFO kablam!    --> src/interpreter.rs:133:32
Nov 06 20:42:22.376 INFO kablam!     |
Nov 06 20:42:22.376 INFO kablam! 133 |                 .filter(|&&(x, y)| x == farthest_x)
Nov 06 20:42:22.376 INFO kablam!     |                                ^ help: consider using `_y` instead
Nov 06 20:42:22.377 INFO kablam! 
Nov 06 20:42:22.377 INFO kablam! warning: unused variable: `height`
Nov 06 20:42:22.377 INFO kablam!   --> src/program.rs:78:21
Nov 06 20:42:22.377 INFO kablam!    |
Nov 06 20:42:22.378 INFO kablam! 78 |         let (width, height) = self.size;
Nov 06 20:42:22.378 INFO kablam!    |                     ^^^^^^ help: consider using `_height` instead
Nov 06 20:42:22.378 INFO kablam! 
Nov 06 20:42:22.761 INFO kablam! warning: variant is never constructed: `Up`
Nov 06 20:42:22.761 INFO kablam!   --> src/interpreter.rs:14:5
Nov 06 20:42:22.761 INFO kablam!    |
Nov 06 20:42:22.761 INFO kablam! 14 |     Up,
Nov 06 20:42:22.761 INFO kablam!    |     ^^
Nov 06 20:42:22.761 INFO kablam!    |
Nov 06 20:42:22.761 INFO kablam!    = note: #[warn(dead_code)] on by default
Nov 06 20:42:22.761 INFO kablam! 
Nov 06 20:42:22.761 INFO kablam! warning: variant is never constructed: `Down`
Nov 06 20:42:22.761 INFO kablam!   --> src/interpreter.rs:16:5
Nov 06 20:42:22.761 INFO kablam!    |
Nov 06 20:42:22.761 INFO kablam! 16 |     Down,
Nov 06 20:42:22.761 INFO kablam!    |     ^^^^
Nov 06 20:42:22.761 INFO kablam! 
Nov 06 20:42:22.761 INFO kablam! warning: variant is never constructed: `Left`
Nov 06 20:42:22.761 INFO kablam!   --> src/interpreter.rs:17:5
Nov 06 20:42:22.761 INFO kablam!    |
Nov 06 20:42:22.761 INFO kablam! 17 |     Left,
Nov 06 20:42:22.761 INFO kablam!    |     ^^^^
Nov 06 20:42:22.761 INFO kablam! 
Nov 06 20:42:22.761 INFO kablam! warning: method is never used: `rotate_clockwise`
Nov 06 20:42:22.761 INFO kablam!   --> src/interpreter.rs:21:5
Nov 06 20:42:22.761 INFO kablam!    |
Nov 06 20:42:22.761 INFO kablam! 21 |     pub fn rotate_clockwise(&mut self) {
Nov 06 20:42:22.761 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 20:42:22.761 INFO kablam! 
Nov 06 20:42:22.761 INFO kablam! warning: method is never used: `rotate_counterclockwise`
Nov 06 20:42:22.761 INFO kablam!   --> src/interpreter.rs:32:5
Nov 06 20:42:22.761 INFO kablam!    |
Nov 06 20:42:22.761 INFO kablam! 32 |     pub fn rotate_counterclockwise(&mut self) {
Nov 06 20:42:22.761 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 20:42:22.761 INFO kablam! 
Nov 06 20:42:22.761 INFO kablam! warning: variant is never constructed: `Right`
Nov 06 20:42:22.761 INFO kablam!   --> src/interpreter.rs:47:5
Nov 06 20:42:22.761 INFO kablam!    |
Nov 06 20:42:22.761 INFO kablam! 47 |     Right,
Nov 06 20:42:22.761 INFO kablam!    |     ^^^^^
Nov 06 20:42:22.761 INFO kablam! 
Nov 06 20:42:22.761 INFO kablam! warning: method is never used: `switch`
Nov 06 20:42:22.761 INFO kablam!   --> src/interpreter.rs:51:5
Nov 06 20:42:22.761 INFO kablam!    |
Nov 06 20:42:22.761 INFO kablam! 51 |     pub fn switch(&mut self) {
Nov 06 20:42:22.761 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 20:42:22.761 INFO kablam! 
Nov 06 20:42:22.761 INFO kablam! warning: method is never used: `current_block`
Nov 06 20:42:22.761 INFO kablam!   --> src/interpreter.rs:93:5
Nov 06 20:42:22.761 INFO kablam!    |
Nov 06 20:42:22.761 INFO kablam! 93 |     fn current_block(&self) -> HashSet<Coords> {
Nov 06 20:42:22.761 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 20:42:22.761 INFO kablam! 
Nov 06 20:42:22.761 INFO kablam! warning: method is never used: `next_coords`
Nov 06 20:42:22.761 INFO kablam!   --> src/interpreter.rs:97:5
Nov 06 20:42:22.761 INFO kablam!    |
Nov 06 20:42:22.761 INFO kablam! 97 |     fn next_coords(&self) -> Coords {
Nov 06 20:42:22.761 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 20:42:22.761 INFO kablam! 
Nov 06 20:42:22.761 INFO kablam! warning: function is never used: `x_key`
Nov 06 20:42:22.761 INFO kablam!    --> src/interpreter.rs:101:9
Nov 06 20:42:22.761 INFO kablam!     |
Nov 06 20:42:22.761 INFO kablam! 101 |         fn x_key(&(x, _): &Coords) -> usize {
Nov 06 20:42:22.761 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 20:42:22.761 INFO kablam! 
Nov 06 20:42:22.761 INFO kablam! warning: function is never used: `y_key`
Nov 06 20:42:22.761 INFO kablam!    --> src/interpreter.rs:104:9
Nov 06 20:42:22.761 INFO kablam!     |
Nov 06 20:42:22.761 INFO kablam! 104 |         fn y_key(&(_, y): &Coords) -> usize {
Nov 06 20:42:22.761 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 20:42:22.761 INFO kablam! 
Nov 06 20:42:22.761 INFO kablam! warning: method is never used: `execute_command`
Nov 06 20:42:22.761 INFO kablam!    --> src/interpreter.rs:167:5
Nov 06 20:42:22.761 INFO kablam!     |
Nov 06 20:42:22.761 INFO kablam! 167 |     fn execute_command(&mut self, command: &Command) {
Nov 06 20:42:22.761 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 20:42:22.761 INFO kablam! 
Nov 06 20:42:22.761 INFO kablam! warning: method is never used: `pointer`
Nov 06 20:42:22.761 INFO kablam!    --> src/interpreter.rs:261:5
Nov 06 20:42:22.761 INFO kablam!     |
Nov 06 20:42:22.761 INFO kablam! 261 |     fn pointer(&mut self, steps: i64) {
Nov 06 20:42:22.761 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 20:42:22.761 INFO kablam! 
Nov 06 20:42:22.761 INFO kablam! warning: method is never used: `switch`
Nov 06 20:42:22.761 INFO kablam!    --> src/interpreter.rs:273:5
Nov 06 20:42:22.761 INFO kablam!     |
Nov 06 20:42:22.761 INFO kablam! 273 |     fn switch(&mut self, times: i64) {
Nov 06 20:42:22.761 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 06 20:42:22.761 INFO kablam! 
Nov 06 20:42:24.864 INFO kablam! warning: unused variable: `codel_size`
Nov 06 20:42:24.864 INFO kablam!   --> src/main.rs:23:9
Nov 06 20:42:24.865 INFO kablam!    |
Nov 06 20:42:24.865 INFO kablam! 23 |     let codel_size = matches.value_of("codel_size").map(|_| unimplemented!());
Nov 06 20:42:24.865 INFO kablam!    |         ^^^^^^^^^^ help: consider using `_codel_size` instead
Nov 06 20:42:24.865 INFO kablam!    |
Nov 06 20:42:24.865 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 06 20:42:24.865 INFO kablam! 
Nov 06 20:42:24.913 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 06 20:42:24.913 INFO kablam!   --> src/main.rs:34:5
Nov 06 20:42:24.913 INFO kablam!    |
Nov 06 20:42:24.913 INFO kablam! 34 |     interpreter.run();
Nov 06 20:42:24.913 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^
Nov 06 20:42:24.913 INFO kablam!    |
Nov 06 20:42:24.914 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 06 20:42:24.914 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 06 20:42:24.914 INFO kablam! 
Nov 06 20:42:24.952 INFO kablam! warning: unused variable: `codel_size`
Nov 06 20:42:24.952 INFO kablam!   --> src/main.rs:23:9
Nov 06 20:42:24.952 INFO kablam!    |
Nov 06 20:42:24.952 INFO kablam! 23 |     let codel_size = matches.value_of("codel_size").map(|_| unimplemented!());
Nov 06 20:42:24.952 INFO kablam!    |         ^^^^^^^^^^ help: consider using `_codel_size` instead
Nov 06 20:42:24.952 INFO kablam!    |
Nov 06 20:42:24.952 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 06 20:42:24.952 INFO kablam! 
Nov 06 20:42:24.972 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 06 20:42:24.972 INFO kablam!   --> src/main.rs:34:5
Nov 06 20:42:24.972 INFO kablam!    |
Nov 06 20:42:24.972 INFO kablam! 34 |     interpreter.run();
Nov 06 20:42:24.972 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^
Nov 06 20:42:24.972 INFO kablam!    |
Nov 06 20:42:24.972 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Nov 06 20:42:24.972 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Nov 06 20:42:24.972 INFO kablam! 
Nov 06 20:42:25.021 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 29.59s
Nov 06 20:42:25.032 INFO kablam! su: No module specific data is present
Nov 06 20:42:26.274 INFO running `"docker" "rm" "-f" "54f0dc3aee1205dd0c0c74f38ad8c22860598520d7b8428e5c38e8339e16445e"`
Nov 06 20:42:26.633 INFO blam! 54f0dc3aee1205dd0c0c74f38ad8c22860598520d7b8428e5c38e8339e16445e