[INFO] cloning repository https://github.com/ijks/piet-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ijks/piet-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fijks%2Fpiet-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fijks%2Fpiet-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c9f85558145516a0b07976ce5a5ad135e26a5003
[INFO] testing ijks/piet-rs against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fijks%2Fpiet-rs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ijks/piet-rs on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ijks/piet-rs
[INFO] finished tweaking git repo https://github.com/ijks/piet-rs
[INFO] tweaked toml for git repo https://github.com/ijks/piet-rs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/ijks/piet-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ce17114d028ce5eea6370e5ba30628fc480219d20e8764265d6a8b0ea0686c70
[INFO] running `Command { std: "docker" "start" "-a" "ce17114d028ce5eea6370e5ba30628fc480219d20e8764265d6a8b0ea0686c70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce17114d028ce5eea6370e5ba30628fc480219d20e8764265d6a8b0ea0686c70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce17114d028ce5eea6370e5ba30628fc480219d20e8764265d6a8b0ea0686c70", kill_on_drop: false }`
[INFO] [stdout] ce17114d028ce5eea6370e5ba30628fc480219d20e8764265d6a8b0ea0686c70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e3f08ce3568e306c47e66372bf8c90381383bf56d36fbd66881794c3b4a0bdc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5e3f08ce3568e306c47e66372bf8c90381383bf56d36fbd66881794c3b4a0bdc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.32
[INFO] [stderr]    Compiling num-traits v0.1.40
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]    Compiling cc v1.0.2
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling either v1.3.0
[INFO] [stderr]    Compiling lazy_static v0.2.9
[INFO] [stderr]    Compiling adler32 v1.0.2
[INFO] [stderr]    Compiling byteorder v1.1.0
[INFO] [stderr]    Compiling futures v0.1.16
[INFO] [stderr]    Compiling rustc-demangle v0.1.5
[INFO] [stderr]    Compiling unicode-width v0.1.4
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling color_quant v1.0.0
[INFO] [stderr]    Compiling bitflags v1.0.0
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling scoped_threadpool v0.1.8
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling inflate v0.3.3
[INFO] [stderr]    Compiling gif v0.9.2
[INFO] [stderr]    Compiling coco v0.1.1
[INFO] [stderr]    Compiling deflate v0.7.17
[INFO] [stderr]    Compiling rand v0.3.17
[INFO] [stderr]    Compiling num_cpus v1.7.0
[INFO] [stderr]    Compiling term_size v0.3.0
[INFO] [stderr]    Compiling atty v0.2.3
[INFO] [stderr]    Compiling num-integer v0.1.35
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling textwrap v0.8.0
[INFO] [stderr]    Compiling clap v2.26.2
[INFO] [stderr]    Compiling num-iter v0.1.34
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling png v0.11.0
[INFO] [stderr]    Compiling num-bigint v0.1.40
[INFO] [stderr]    Compiling num-complex v0.1.40
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling num-rational v0.1.39
[INFO] [stderr]    Compiling jpeg-decoder v0.1.13
[INFO] [stderr]    Compiling num v0.1.40
[INFO] [stderr]    Compiling image v0.17.0
[INFO] [stderr]    Compiling backtrace v0.3.3
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling piet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> src/interpreter.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/interpreter.rs:120:29
[INFO] [stdout]     |
[INFO] [stdout] 120 |                 .filter(|&&(x, y)| y == farthest_y)
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/interpreter.rs:133:32
[INFO] [stdout]     |
[INFO] [stdout] 133 |                 .filter(|&&(x, y)| x == farthest_x)
[INFO] [stdout]     |                                ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]   --> src/program.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |         let (width, height) = self.size;
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Up`
[INFO] [stdout]   --> src/interpreter.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Up,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Down`
[INFO] [stdout]   --> src/interpreter.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Down,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Left`
[INFO] [stdout]   --> src/interpreter.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Left,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate_clockwise`
[INFO] [stdout]   --> src/interpreter.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn rotate_clockwise(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate_counterclockwise`
[INFO] [stdout]   --> src/interpreter.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn rotate_counterclockwise(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Right`
[INFO] [stdout]   --> src/interpreter.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     Right,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `switch`
[INFO] [stdout]   --> src/interpreter.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn switch(&mut self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `current_block`
[INFO] [stdout]   --> src/interpreter.rs:93:8
[INFO] [stdout]    |
[INFO] [stdout] 93 |     fn current_block(&self) -> HashSet<Coords> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_coords`
[INFO] [stdout]   --> src/interpreter.rs:97:8
[INFO] [stdout]    |
[INFO] [stdout] 97 |     fn next_coords(&self) -> Coords {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `x_key`
[INFO] [stdout]    --> src/interpreter.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |         fn x_key(&(x, _): &Coords) -> usize {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `y_key`
[INFO] [stdout]    --> src/interpreter.rs:104:12
[INFO] [stdout]     |
[INFO] [stdout] 104 |         fn y_key(&(_, y): &Coords) -> usize {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `execute_command`
[INFO] [stdout]    --> src/interpreter.rs:167:8
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn execute_command(&mut self, command: &Command) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pointer`
[INFO] [stdout]    --> src/interpreter.rs:261:8
[INFO] [stdout]     |
[INFO] [stdout] 261 |     fn pointer(&mut self, steps: i64) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `switch`
[INFO] [stdout]    --> src/interpreter.rs:273:8
[INFO] [stdout]     |
[INFO] [stdout] 273 |     fn switch(&mut self, times: i64) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `index_to_coords`
[INFO] [stdout]   --> src/program.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn index_to_coords(&self, index: usize) -> Option<Coords> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `codel_size`
[INFO] [stdout]   --> src/main.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let codel_size = matches.value_of("codel_size").map(|_| unimplemented!());
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_codel_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     interpreter.run();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.29s
[INFO] running `Command { std: "docker" "inspect" "5e3f08ce3568e306c47e66372bf8c90381383bf56d36fbd66881794c3b4a0bdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e3f08ce3568e306c47e66372bf8c90381383bf56d36fbd66881794c3b4a0bdc", kill_on_drop: false }`
[INFO] [stdout] 5e3f08ce3568e306c47e66372bf8c90381383bf56d36fbd66881794c3b4a0bdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d08eb9d631422a3e65971c55ed70c85f4f02cf512faac05ccb1c3b751c272707
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d08eb9d631422a3e65971c55ed70c85f4f02cf512faac05ccb1c3b751c272707", kill_on_drop: false }`
[INFO] [stderr]    Compiling piet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> src/interpreter.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/interpreter.rs:120:29
[INFO] [stdout]     |
[INFO] [stdout] 120 |                 .filter(|&&(x, y)| y == farthest_y)
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/interpreter.rs:133:32
[INFO] [stdout]     |
[INFO] [stdout] 133 |                 .filter(|&&(x, y)| x == farthest_x)
[INFO] [stdout]     |                                ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]   --> src/program.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |         let (width, height) = self.size;
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Up`
[INFO] [stdout]   --> src/interpreter.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Up,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Down`
[INFO] [stdout]   --> src/interpreter.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Down,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Left`
[INFO] [stdout]   --> src/interpreter.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Left,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate_clockwise`
[INFO] [stdout]   --> src/interpreter.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn rotate_clockwise(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate_counterclockwise`
[INFO] [stdout]   --> src/interpreter.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn rotate_counterclockwise(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Right`
[INFO] [stdout]   --> src/interpreter.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     Right,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `switch`
[INFO] [stdout]   --> src/interpreter.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn switch(&mut self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `current_block`
[INFO] [stdout]   --> src/interpreter.rs:93:8
[INFO] [stdout]    |
[INFO] [stdout] 93 |     fn current_block(&self) -> HashSet<Coords> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_coords`
[INFO] [stdout]   --> src/interpreter.rs:97:8
[INFO] [stdout]    |
[INFO] [stdout] 97 |     fn next_coords(&self) -> Coords {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `x_key`
[INFO] [stdout]    --> src/interpreter.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |         fn x_key(&(x, _): &Coords) -> usize {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `y_key`
[INFO] [stdout]    --> src/interpreter.rs:104:12
[INFO] [stdout]     |
[INFO] [stdout] 104 |         fn y_key(&(_, y): &Coords) -> usize {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `execute_command`
[INFO] [stdout]    --> src/interpreter.rs:167:8
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn execute_command(&mut self, command: &Command) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pointer`
[INFO] [stdout]    --> src/interpreter.rs:261:8
[INFO] [stdout]     |
[INFO] [stdout] 261 |     fn pointer(&mut self, steps: i64) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `switch`
[INFO] [stdout]    --> src/interpreter.rs:273:8
[INFO] [stdout]     |
[INFO] [stdout] 273 |     fn switch(&mut self, times: i64) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `index_to_coords`
[INFO] [stdout]   --> src/program.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn index_to_coords(&self, index: usize) -> Option<Coords> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `codel_size`
[INFO] [stdout]   --> src/main.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let codel_size = matches.value_of("codel_size").map(|_| unimplemented!());
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_codel_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     interpreter.run();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> src/interpreter.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/interpreter.rs:120:29
[INFO] [stdout]     |
[INFO] [stdout] 120 |                 .filter(|&&(x, y)| y == farthest_y)
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/interpreter.rs:133:32
[INFO] [stdout]     |
[INFO] [stdout] 133 |                 .filter(|&&(x, y)| x == farthest_x)
[INFO] [stdout]     |                                ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]   --> src/program.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |         let (width, height) = self.size;
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Up`
[INFO] [stdout]   --> src/interpreter.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Up,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Down`
[INFO] [stdout]   --> src/interpreter.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Down,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Left`
[INFO] [stdout]   --> src/interpreter.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Left,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate_clockwise`
[INFO] [stdout]   --> src/interpreter.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn rotate_clockwise(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate_counterclockwise`
[INFO] [stdout]   --> src/interpreter.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn rotate_counterclockwise(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Right`
[INFO] [stdout]   --> src/interpreter.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     Right,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `switch`
[INFO] [stdout]   --> src/interpreter.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn switch(&mut self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `current_block`
[INFO] [stdout]   --> src/interpreter.rs:93:8
[INFO] [stdout]    |
[INFO] [stdout] 93 |     fn current_block(&self) -> HashSet<Coords> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_coords`
[INFO] [stdout]   --> src/interpreter.rs:97:8
[INFO] [stdout]    |
[INFO] [stdout] 97 |     fn next_coords(&self) -> Coords {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `x_key`
[INFO] [stdout]    --> src/interpreter.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |         fn x_key(&(x, _): &Coords) -> usize {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `y_key`
[INFO] [stdout]    --> src/interpreter.rs:104:12
[INFO] [stdout]     |
[INFO] [stdout] 104 |         fn y_key(&(_, y): &Coords) -> usize {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `execute_command`
[INFO] [stdout]    --> src/interpreter.rs:167:8
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn execute_command(&mut self, command: &Command) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pointer`
[INFO] [stdout]    --> src/interpreter.rs:261:8
[INFO] [stdout]     |
[INFO] [stdout] 261 |     fn pointer(&mut self, steps: i64) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `switch`
[INFO] [stdout]    --> src/interpreter.rs:273:8
[INFO] [stdout]     |
[INFO] [stdout] 273 |     fn switch(&mut self, times: i64) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.39s
[INFO] running `Command { std: "docker" "inspect" "d08eb9d631422a3e65971c55ed70c85f4f02cf512faac05ccb1c3b751c272707", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d08eb9d631422a3e65971c55ed70c85f4f02cf512faac05ccb1c3b751c272707", kill_on_drop: false }`
[INFO] [stdout] d08eb9d631422a3e65971c55ed70c85f4f02cf512faac05ccb1c3b751c272707
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 447ec6731dae9e7a9fd766158f4ca85d66f4663160817d06dcd14d9da7a0bec0
[INFO] running `Command { std: "docker" "start" "-a" "447ec6731dae9e7a9fd766158f4ca85d66f4663160817d06dcd14d9da7a0bec0", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::cmp::Ordering`
[INFO] [stderr]  --> src/interpreter.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cmp::Ordering;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::Ordering`
[INFO] [stderr]  --> src/interpreter.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cmp::Ordering;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/interpreter.rs:120:29
[INFO] [stderr]     |
[INFO] [stderr] 120 |                 .filter(|&&(x, y)| y == farthest_y)
[INFO] [stderr]     |                             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/interpreter.rs:133:32
[INFO] [stderr]     |
[INFO] [stderr] 133 |                 .filter(|&&(x, y)| x == farthest_x)
[INFO] [stderr]     |                                ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `height`
[INFO] [stderr]   --> src/program.rs:78:21
[INFO] [stderr]    |
[INFO] [stderr] 78 |         let (width, height) = self.size;
[INFO] [stderr]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/interpreter.rs:120:29
[INFO] [stderr]     |
[INFO] [stderr] 120 |                 .filter(|&&(x, y)| y == farthest_y)
[INFO] [stderr]     |                             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/interpreter.rs:133:32
[INFO] [stderr]     |
[INFO] [stderr] 133 |                 .filter(|&&(x, y)| x == farthest_x)
[INFO] [stderr]     |                                ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `height`
[INFO] [stderr]   --> src/program.rs:78:21
[INFO] [stderr]    |
[INFO] [stderr] 78 |         let (width, height) = self.size;
[INFO] [stderr]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Up`
[INFO] [stderr]   --> src/interpreter.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Up,
[INFO] [stderr]    |     ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Down`
[INFO] [stderr]   --> src/interpreter.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Down,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Left`
[INFO] [stderr]   --> src/interpreter.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     Left,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Up`
[INFO] [stderr]   --> src/interpreter.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Up,
[INFO] [stderr]    |     ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Down`
[INFO] [stderr]   --> src/interpreter.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Down,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Left`
[INFO] [stderr]   --> src/interpreter.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     Left,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `rotate_clockwise`
[INFO] [stderr]   --> src/interpreter.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn rotate_clockwise(&mut self) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `rotate_counterclockwise`
[INFO] [stderr]   --> src/interpreter.rs:32:12
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn rotate_counterclockwise(&mut self) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `rotate_clockwise`
[INFO] [stderr]   --> src/interpreter.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn rotate_clockwise(&mut self) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `rotate_counterclockwise`
[INFO] [stderr]   --> src/interpreter.rs:32:12
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn rotate_counterclockwise(&mut self) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Right`
[INFO] [stderr]   --> src/interpreter.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     Right,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `switch`
[INFO] [stderr]   --> src/interpreter.rs:51:12
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn switch(&mut self) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `current_block`
[INFO] [stderr]   --> src/interpreter.rs:93:8
[INFO] [stderr]    |
[INFO] [stderr] 93 |     fn current_block(&self) -> HashSet<Coords> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Right`
[INFO] [stderr]   --> src/interpreter.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     Right,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `switch`
[INFO] [stderr]   --> src/interpreter.rs:51:12
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn switch(&mut self) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `current_block`
[INFO] [stderr]   --> src/interpreter.rs:93:8
[INFO] [stderr]    |
[INFO] [stderr] 93 |     fn current_block(&self) -> HashSet<Coords> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `next_coords`
[INFO] [stderr]   --> src/interpreter.rs:97:8
[INFO] [stderr]    |
[INFO] [stderr] 97 |     fn next_coords(&self) -> Coords {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `x_key`
[INFO] [stderr]    --> src/interpreter.rs:101:12
[INFO] [stderr]     |
[INFO] [stderr] 101 |         fn x_key(&(x, _): &Coords) -> usize {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `y_key`
[INFO] [stderr]    --> src/interpreter.rs:104:12
[INFO] [stderr]     |
[INFO] [stderr] 104 |         fn y_key(&(_, y): &Coords) -> usize {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `next_coords`
[INFO] [stderr]   --> src/interpreter.rs:97:8
[INFO] [stderr]    |
[INFO] [stderr] 97 |     fn next_coords(&self) -> Coords {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `x_key`
[INFO] [stderr]    --> src/interpreter.rs:101:12
[INFO] [stderr]     |
[INFO] [stderr] 101 |         fn x_key(&(x, _): &Coords) -> usize {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `y_key`
[INFO] [stderr]    --> src/interpreter.rs:104:12
[INFO] [stderr]     |
[INFO] [stderr] 104 |         fn y_key(&(_, y): &Coords) -> usize {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `execute_command`
[INFO] [stderr]    --> src/interpreter.rs:167:8
[INFO] [stderr]     |
[INFO] [stderr] 167 |     fn execute_command(&mut self, command: &Command) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `pointer`
[INFO] [stderr]    --> src/interpreter.rs:261:8
[INFO] [stderr]     |
[INFO] [stderr] 261 |     fn pointer(&mut self, steps: i64) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `switch`
[INFO] [stderr]    --> src/interpreter.rs:273:8
[INFO] [stderr]     |
[INFO] [stderr] 273 |     fn switch(&mut self, times: i64) {
[INFO] [stderr]     |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `execute_command`
[INFO] [stderr]    --> src/interpreter.rs:167:8
[INFO] [stderr]     |
[INFO] [stderr] 167 |     fn execute_command(&mut self, command: &Command) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `pointer`
[INFO] [stderr]    --> src/interpreter.rs:261:8
[INFO] [stderr]     |
[INFO] [stderr] 261 |     fn pointer(&mut self, steps: i64) {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `switch`
[INFO] [stderr]    --> src/interpreter.rs:273:8
[INFO] [stderr]     |
[INFO] [stderr] 273 |     fn switch(&mut self, times: i64) {
[INFO] [stderr]     |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `index_to_coords`
[INFO] [stderr]   --> src/program.rs:83:8
[INFO] [stderr]    |
[INFO] [stderr] 83 |     fn index_to_coords(&self, index: usize) -> Option<Coords> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `codel_size`
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let codel_size = matches.value_of("codel_size").map(|_| unimplemented!());
[INFO] [stderr]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_codel_size`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     interpreter.run();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/piet-a9c061f4048063ff
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test color::tests::test_color_from_rgb ... ok
[INFO] [stdout] test color::tests::test_color_transition ... ok
[INFO] [stdout] test program::tests::test_program_index_to_coords ... ok
[INFO] [stdout] test program::tests::test_program_coords_to_index ... ok
[INFO] [stdout] test stack::tests::test_stack_new ... ok
[INFO] [stdout] test stack::tests::test_stack_fold_top ... ok
[INFO] [stdout] test stack::tests::test_stack_roll ... ok
[INFO] [stdout] test program::tests::test_program_color_block ... ok
[INFO] [stdout] test stack::tests::test_stack_pop2 ... ok
[INFO] [stdout] test color::tests::test_lightness_shift ... ok
[INFO] [stdout] test color::tests::test_hue_shift ... ok
[INFO] [stdout] test stack::tests::test_stack_peek ... ok
[INFO] [stdout] test command::tests::test_from_transition ... ok
[INFO] [stdout] test program::tests::test_program_check_coords ... ok
[INFO] [stdout] test stack::tests::test_stack_map_top ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/piet-9e284f9cdf19e7b3
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests piet
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/color.rs - color::Color::transition (line 127) ... ok
[INFO] [stdout] test src/color.rs - color::Color::from_rgb (line 69) ... ok
[INFO] [stdout] test src/color.rs - color::Lightness::shift (line 44) ... ok
[INFO] [stdout] test src/stack.rs - stack::Stack::roll (line 64) ... ok
[INFO] [stdout] test src/color.rs - color::Hue::shift (line 19) ... ok
[INFO] [stdout] test src/stack.rs - stack::Stack::fold_top (line 33) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "447ec6731dae9e7a9fd766158f4ca85d66f4663160817d06dcd14d9da7a0bec0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "447ec6731dae9e7a9fd766158f4ca85d66f4663160817d06dcd14d9da7a0bec0", kill_on_drop: false }`
[INFO] [stdout] 447ec6731dae9e7a9fd766158f4ca85d66f4663160817d06dcd14d9da7a0bec0