[INFO] updating cached repository lilserf/advent2015
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lilserf/advent2015
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lilserf/advent2015" "work/ex/clippy-test-run/sources/stable/gh/lilserf/advent2015"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/lilserf/advent2015'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lilserf/advent2015" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/lilserf/advent2015"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/lilserf/advent2015'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8800adfd1e872dea949dbfe398c36c1abee404d7
[INFO] sha for GitHub repo lilserf/advent2015: 8800adfd1e872dea949dbfe398c36c1abee404d7
[INFO] validating manifest of lilserf/advent2015 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lilserf/advent2015 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lilserf/advent2015
[INFO] finished frobbing lilserf/advent2015
[INFO] frobbed toml for lilserf/advent2015 written to work/ex/clippy-test-run/sources/stable/gh/lilserf/advent2015/Cargo.toml
[INFO] started frobbing lilserf/advent2015
[INFO] finished frobbing lilserf/advent2015
[INFO] frobbed toml for lilserf/advent2015 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/lilserf/advent2015/Cargo.toml
[INFO] crate lilserf/advent2015 has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting lilserf/advent2015 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/lilserf/advent2015:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c59ebc035e1f565cadce03b38961a38a254983e0d7adf8d1c9b61132ed5460ee
[INFO] running `"docker" "start" "-a" "c59ebc035e1f565cadce03b38961a38a254983e0d7adf8d1c9b61132ed5460ee"`
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]     Checking advent v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:228:2
[INFO] [stderr]     |
[INFO] [stderr] 228 |     return false;
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:284:2
[INFO] [stderr]     |
[INFO] [stderr] 284 |     return false;
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/main.rs:244:3
[INFO] [stderr]     |
[INFO] [stderr] 244 |           if i < value.len()-2
[INFO] [stderr]     |  _________^
[INFO] [stderr] 245 | |         {
[INFO] [stderr] 246 | |             if value[i] == value[i+2]
[INFO] [stderr] 247 | |             {
[INFO] [stderr] ...   |
[INFO] [stderr] 250 | |             }
[INFO] [stderr] 251 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 244 |         if i < value.len()-2 && value[i] == value[i+2] {
[INFO] [stderr] 245 |     triad = true;
[INFO] [stderr] 246 |     triad_str = String::from_utf8(value[i..i+3].to_vec()).unwrap();
[INFO] [stderr] 247 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:494:5
[INFO] [stderr]     |
[INFO] [stderr] 494 |                 return Ok(x);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(x)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:498:5
[INFO] [stderr]     |
[INFO] [stderr] 498 |                 return Err("Src var not resolved.");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err("Src var not resolved.")`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:507:5
[INFO] [stderr]     |
[INFO] [stderr] 507 |                 return Ok(x);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(x)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:511:5
[INFO] [stderr]     |
[INFO] [stderr] 511 |                 return Err("One or more src vars not resolved");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err("One or more src vars not resolved")`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:521:5
[INFO] [stderr]     |
[INFO] [stderr] 521 |                 return Ok(x);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(x)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:525:5
[INFO] [stderr]     |
[INFO] [stderr] 525 |                 return Err("One or more src vars not resolved");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err("One or more src vars not resolved")`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:535:5
[INFO] [stderr]     |
[INFO] [stderr] 535 |                 return Ok(x);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(x)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:539:5
[INFO] [stderr]     |
[INFO] [stderr] 539 |                 return Err("One or more src vars not resolved");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err("One or more src vars not resolved")`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:548:5
[INFO] [stderr]     |
[INFO] [stderr] 548 |                 return Ok(x);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(x)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:552:5
[INFO] [stderr]     |
[INFO] [stderr] 552 |                 return Err("One or more src vars not resolved");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err("One or more src vars not resolved")`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:561:5
[INFO] [stderr]     |
[INFO] [stderr] 561 |                 return Ok(x);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(x)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:565:5
[INFO] [stderr]     |
[INFO] [stderr] 565 |                 return Err("One or more src vars not resolved");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err("One or more src vars not resolved")`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:574:5
[INFO] [stderr]     |
[INFO] [stderr] 574 |                 return Ok(x);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(x)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:578:5
[INFO] [stderr]     |
[INFO] [stderr] 578 |                 return Err("One or more src vars not resolved");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err("One or more src vars not resolved")`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/main.rs:613:3
[INFO] [stderr]     |
[INFO] [stderr] 613 |           {
[INFO] [stderr]     |  _________^
[INFO] [stderr] 614 | |             if symbols[1] == "AND"
[INFO] [stderr] 615 | |             {
[INFO] [stderr] 616 | |                 // Cheating: my dataset contains cases of "1 AND x" but no other ones with number literals
[INFO] [stderr] ...   |
[INFO] [stderr] 644 | |             }
[INFO] [stderr] 645 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 613 |         if symbols[1] == "AND"
[INFO] [stderr] 614 | {
[INFO] [stderr] 615 |     // Cheating: my dataset contains cases of "1 AND x" but no other ones with number literals
[INFO] [stderr] 616 |     match symbols[0].parse()
[INFO] [stderr] 617 |     {
[INFO] [stderr] 618 |         // Parsed a number, add a NumAnd op
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:729:2
[INFO] [stderr]     |
[INFO] [stderr] 729 |     return input;
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: remove `return` as shown: `input`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:228:2
[INFO] [stderr]     |
[INFO] [stderr] 228 |     return false;
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:284:2
[INFO] [stderr]     |
[INFO] [stderr] 284 |     return false;
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/main.rs:244:3
[INFO] [stderr]     |
[INFO] [stderr] 244 |           if i < value.len()-2
[INFO] [stderr]     |  _________^
[INFO] [stderr] 245 | |         {
[INFO] [stderr] 246 | |             if value[i] == value[i+2]
[INFO] [stderr] 247 | |             {
[INFO] [stderr] ...   |
[INFO] [stderr] 250 | |             }
[INFO] [stderr] 251 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 244 |         if i < value.len()-2 && value[i] == value[i+2] {
[INFO] [stderr] 245 |     triad = true;
[INFO] [stderr] 246 |     triad_str = String::from_utf8(value[i..i+3].to_vec()).unwrap();
[INFO] [stderr] 247 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:494:5
[INFO] [stderr]     |
[INFO] [stderr] 494 |                 return Ok(x);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(x)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:498:5
[INFO] [stderr]     |
[INFO] [stderr] 498 |                 return Err("Src var not resolved.");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err("Src var not resolved.")`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:507:5
[INFO] [stderr]     |
[INFO] [stderr] 507 |                 return Ok(x);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(x)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:511:5
[INFO] [stderr]     |
[INFO] [stderr] 511 |                 return Err("One or more src vars not resolved");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err("One or more src vars not resolved")`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:521:5
[INFO] [stderr]     |
[INFO] [stderr] 521 |                 return Ok(x);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(x)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:525:5
[INFO] [stderr]     |
[INFO] [stderr] 525 |                 return Err("One or more src vars not resolved");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err("One or more src vars not resolved")`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:535:5
[INFO] [stderr]     |
[INFO] [stderr] 535 |                 return Ok(x);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(x)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:539:5
[INFO] [stderr]     |
[INFO] [stderr] 539 |                 return Err("One or more src vars not resolved");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err("One or more src vars not resolved")`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:548:5
[INFO] [stderr]     |
[INFO] [stderr] 548 |                 return Ok(x);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(x)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:552:5
[INFO] [stderr]     |
[INFO] [stderr] 552 |                 return Err("One or more src vars not resolved");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err("One or more src vars not resolved")`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:561:5
[INFO] [stderr]     |
[INFO] [stderr] 561 |                 return Ok(x);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(x)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:565:5
[INFO] [stderr]     |
[INFO] [stderr] 565 |                 return Err("One or more src vars not resolved");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err("One or more src vars not resolved")`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:574:5
[INFO] [stderr]     |
[INFO] [stderr] 574 |                 return Ok(x);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(x)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:578:5
[INFO] [stderr]     |
[INFO] [stderr] 578 |                 return Err("One or more src vars not resolved");
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err("One or more src vars not resolved")`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/main.rs:613:3
[INFO] [stderr]     |
[INFO] [stderr] 613 |           {
[INFO] [stderr]     |  _________^
[INFO] [stderr] 614 | |             if symbols[1] == "AND"
[INFO] [stderr] 615 | |             {
[INFO] [stderr] 616 | |                 // Cheating: my dataset contains cases of "1 AND x" but no other ones with number literals
[INFO] [stderr] ...   |
[INFO] [stderr] 644 | |             }
[INFO] [stderr] 645 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 613 |         if symbols[1] == "AND"
[INFO] [stderr] 614 | {
[INFO] [stderr] 615 |     // Cheating: my dataset contains cases of "1 AND x" but no other ones with number literals
[INFO] [stderr] 616 |     match symbols[0].parse()
[INFO] [stderr] 617 |     {
[INFO] [stderr] 618 |         // Parsed a number, add a NumAnd op
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:729:2
[INFO] [stderr]     |
[INFO] [stderr] 729 |     return input;
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: remove `return` as shown: `input`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/main.rs:49:29
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let v:Vec<&str> = s.split("x").collect();
[INFO] [stderr]    |                                   ^^^ help: try using a char instead: `'x'`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> src/main.rs:166:12
[INFO] [stderr]     |
[INFO] [stderr] 166 |     let key = "bgvyzdsv".as_bytes();
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"bgvyzdsv"`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::string_lit_as_bytes)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:177:17
[INFO] [stderr]     |
[INFO] [stderr] 177 |         let first_x = output[0] as i32 + output[1] as i32 + output[2] as i32;
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^ help: try: `i32::from(output[0])`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:177:36
[INFO] [stderr]     |
[INFO] [stderr] 177 |         let first_x = output[0] as i32 + output[1] as i32 + output[2] as i32;
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^ help: try: `i32::from(output[1])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:177:55
[INFO] [stderr]     |
[INFO] [stderr] 177 |         let first_x = output[0] as i32 + output[1] as i32 + output[2] as i32;
[INFO] [stderr]     |                                                             ^^^^^^^^^^^^^^^^ help: try: `i32::from(output[2])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/main.rs:258:17
[INFO] [stderr]     |
[INFO] [stderr] 258 |                 let index = h.get(&s).unwrap();
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^ help: try this: `&h[&s]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/main.rs:261:33
[INFO] [stderr]     |
[INFO] [stderr] 261 |             if h.contains_key(&s) && i > h.get(&s).unwrap() + 1
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^ help: try this: `&h[&s]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: usage of `contains_key` followed by `insert` on a `HashMap`
[INFO] [stderr]    --> src/main.rs:267:4
[INFO] [stderr]     |
[INFO] [stderr] 267 |               if !h.contains_key(&s)
[INFO] [stderr]     |  _____________^
[INFO] [stderr] 268 | |             {
[INFO] [stderr] 269 | |                 h.insert(s, i);
[INFO] [stderr] 270 | |             }
[INFO] [stderr]     | |_____________^ help: consider using: `h.entry(s).or_insert(i)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::map_entry)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_entry
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `x` is only used to index `grid`.
[INFO] [stderr]    --> src/main.rs:331:13
[INFO] [stderr]     |
[INFO] [stderr] 331 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 331 |             for <item> in grid.iter_mut().take(b[0]+1).skip(a[0])
[INFO] [stderr]     |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:331:13
[INFO] [stderr]     |
[INFO] [stderr] 331 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: use: `a[0]..=b[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:333:14
[INFO] [stderr]     |
[INFO] [stderr] 333 |                 for y in a[1]..b[1]+1
[INFO] [stderr]     |                          ^^^^^^^^^^^^ help: use: `a[1]..=b[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `x` is only used to index `grid`.
[INFO] [stderr]    --> src/main.rs:348:13
[INFO] [stderr]     |
[INFO] [stderr] 348 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 348 |             for <item> in grid.iter_mut().take(b[0]+1).skip(a[0])
[INFO] [stderr]     |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:348:13
[INFO] [stderr]     |
[INFO] [stderr] 348 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: use: `a[0]..=b[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:350:14
[INFO] [stderr]     |
[INFO] [stderr] 350 |                 for y in a[1]..b[1]+1
[INFO] [stderr]     |                          ^^^^^^^^^^^^ help: use: `a[1]..=b[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `x` is only used to index `grid`.
[INFO] [stderr]    --> src/main.rs:365:13
[INFO] [stderr]     |
[INFO] [stderr] 365 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 365 |             for <item> in grid.iter_mut().take(b[0]+1).skip(a[0])
[INFO] [stderr]     |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:365:13
[INFO] [stderr]     |
[INFO] [stderr] 365 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: use: `a[0]..=b[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:367:14
[INFO] [stderr]     |
[INFO] [stderr] 367 |                 for y in a[1]..b[1]+1
[INFO] [stderr]     |                          ^^^^^^^^^^^^ help: use: `a[1]..=b[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:385:13
[INFO] [stderr]     |
[INFO] [stderr] 385 |             count += col as u32;
[INFO] [stderr]     |                      ^^^^^^^^^^ help: try: `u32::from(col)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `x` is only used to index `grid`.
[INFO] [stderr]    --> src/main.rs:410:13
[INFO] [stderr]     |
[INFO] [stderr] 410 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 410 |             for <item> in grid.iter_mut().take(b[0]+1).skip(a[0])
[INFO] [stderr]     |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:410:13
[INFO] [stderr]     |
[INFO] [stderr] 410 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: use: `a[0]..=b[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:412:14
[INFO] [stderr]     |
[INFO] [stderr] 412 |                 for y in a[1]..b[1]+1
[INFO] [stderr]     |                          ^^^^^^^^^^^^ help: use: `a[1]..=b[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `x` is only used to index `grid`.
[INFO] [stderr]    --> src/main.rs:427:13
[INFO] [stderr]     |
[INFO] [stderr] 427 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 427 |             for <item> in grid.iter_mut().take(b[0]+1).skip(a[0])
[INFO] [stderr]     |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:427:13
[INFO] [stderr]     |
[INFO] [stderr] 427 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: use: `a[0]..=b[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:429:14
[INFO] [stderr]     |
[INFO] [stderr] 429 |                 for y in a[1]..b[1]+1
[INFO] [stderr]     |                          ^^^^^^^^^^^^ help: use: `a[1]..=b[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `x` is only used to index `grid`.
[INFO] [stderr]    --> src/main.rs:448:13
[INFO] [stderr]     |
[INFO] [stderr] 448 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 448 |             for <item> in grid.iter_mut().take(b[0]+1).skip(a[0])
[INFO] [stderr]     |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:448:13
[INFO] [stderr]     |
[INFO] [stderr] 448 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: use: `a[0]..=b[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:450:14
[INFO] [stderr]     |
[INFO] [stderr] 450 |                 for y in a[1]..b[1]+1
[INFO] [stderr]     |                          ^^^^^^^^^^^^ help: use: `a[1]..=b[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:463:13
[INFO] [stderr]     |
[INFO] [stderr] 463 |             count += col as u32;
[INFO] [stderr]     |                      ^^^^^^^^^^ help: try: `u32::from(col)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/main.rs:487:2
[INFO] [stderr]     |
[INFO] [stderr] 487 |       match op
[INFO] [stderr]     |  _____^
[INFO] [stderr] 488 | |     {
[INFO] [stderr] 489 | |         &Operation::AssignVar(src) => 
[INFO] [stderr] 490 | |         {
[INFO] [stderr] ...   |
[INFO] [stderr] 580 | |         }        
[INFO] [stderr] 581 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 487 |     match *op
[INFO] [stderr] 488 |     {
[INFO] [stderr] 489 |         Operation::AssignVar(src) => 
[INFO] [stderr] 490 |         {
[INFO] [stderr] 491 |             if h.contains_key(src)
[INFO] [stderr] 492 |             {
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/main.rs:648:8
[INFO] [stderr]     |
[INFO] [stderr] 648 |     while wires.len() > 0
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!wires.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/main.rs:49:29
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let v:Vec<&str> = s.split("x").collect();
[INFO] [stderr]    |                                   ^^^ help: try using a char instead: `'x'`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: calling `as_bytes()` on a string literal
[INFO] [stderr]    --> src/main.rs:166:12
[INFO] [stderr]     |
[INFO] [stderr] 166 |     let key = "bgvyzdsv".as_bytes();
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"bgvyzdsv"`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::string_lit_as_bytes)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:177:17
[INFO] [stderr]     |
[INFO] [stderr] 177 |         let first_x = output[0] as i32 + output[1] as i32 + output[2] as i32;
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^ help: try: `i32::from(output[0])`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:177:36
[INFO] [stderr]     |
[INFO] [stderr] 177 |         let first_x = output[0] as i32 + output[1] as i32 + output[2] as i32;
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^ help: try: `i32::from(output[1])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:177:55
[INFO] [stderr]     |
[INFO] [stderr] 177 |         let first_x = output[0] as i32 + output[1] as i32 + output[2] as i32;
[INFO] [stderr]     |                                                             ^^^^^^^^^^^^^^^^ help: try: `i32::from(output[2])`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/main.rs:258:17
[INFO] [stderr]     |
[INFO] [stderr] 258 |                 let index = h.get(&s).unwrap();
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^ help: try this: `&h[&s]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/main.rs:261:33
[INFO] [stderr]     |
[INFO] [stderr] 261 |             if h.contains_key(&s) && i > h.get(&s).unwrap() + 1
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^ help: try this: `&h[&s]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: usage of `contains_key` followed by `insert` on a `HashMap`
[INFO] [stderr]    --> src/main.rs:267:4
[INFO] [stderr]     |
[INFO] [stderr] 267 |               if !h.contains_key(&s)
[INFO] [stderr]     |  _____________^
[INFO] [stderr] 268 | |             {
[INFO] [stderr] 269 | |                 h.insert(s, i);
[INFO] [stderr] 270 | |             }
[INFO] [stderr]     | |_____________^ help: consider using: `h.entry(s).or_insert(i)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::map_entry)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_entry
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `x` is only used to index `grid`.
[INFO] [stderr]    --> src/main.rs:331:13
[INFO] [stderr]     |
[INFO] [stderr] 331 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 331 |             for <item> in grid.iter_mut().take(b[0]+1).skip(a[0])
[INFO] [stderr]     |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:331:13
[INFO] [stderr]     |
[INFO] [stderr] 331 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: use: `a[0]..=b[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:333:14
[INFO] [stderr]     |
[INFO] [stderr] 333 |                 for y in a[1]..b[1]+1
[INFO] [stderr]     |                          ^^^^^^^^^^^^ help: use: `a[1]..=b[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `x` is only used to index `grid`.
[INFO] [stderr]    --> src/main.rs:348:13
[INFO] [stderr]     |
[INFO] [stderr] 348 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 348 |             for <item> in grid.iter_mut().take(b[0]+1).skip(a[0])
[INFO] [stderr]     |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:348:13
[INFO] [stderr]     |
[INFO] [stderr] 348 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: use: `a[0]..=b[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:350:14
[INFO] [stderr]     |
[INFO] [stderr] 350 |                 for y in a[1]..b[1]+1
[INFO] [stderr]     |                          ^^^^^^^^^^^^ help: use: `a[1]..=b[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `x` is only used to index `grid`.
[INFO] [stderr]    --> src/main.rs:365:13
[INFO] [stderr]     |
[INFO] [stderr] 365 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 365 |             for <item> in grid.iter_mut().take(b[0]+1).skip(a[0])
[INFO] [stderr]     |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:365:13
[INFO] [stderr]     |
[INFO] [stderr] 365 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: use: `a[0]..=b[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:367:14
[INFO] [stderr]     |
[INFO] [stderr] 367 |                 for y in a[1]..b[1]+1
[INFO] [stderr]     |                          ^^^^^^^^^^^^ help: use: `a[1]..=b[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:385:13
[INFO] [stderr]     |
[INFO] [stderr] 385 |             count += col as u32;
[INFO] [stderr]     |                      ^^^^^^^^^^ help: try: `u32::from(col)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `x` is only used to index `grid`.
[INFO] [stderr]    --> src/main.rs:410:13
[INFO] [stderr]     |
[INFO] [stderr] 410 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 410 |             for <item> in grid.iter_mut().take(b[0]+1).skip(a[0])
[INFO] [stderr]     |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:410:13
[INFO] [stderr]     |
[INFO] [stderr] 410 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: use: `a[0]..=b[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:412:14
[INFO] [stderr]     |
[INFO] [stderr] 412 |                 for y in a[1]..b[1]+1
[INFO] [stderr]     |                          ^^^^^^^^^^^^ help: use: `a[1]..=b[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `x` is only used to index `grid`.
[INFO] [stderr]    --> src/main.rs:427:13
[INFO] [stderr]     |
[INFO] [stderr] 427 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 427 |             for <item> in grid.iter_mut().take(b[0]+1).skip(a[0])
[INFO] [stderr]     |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:427:13
[INFO] [stderr]     |
[INFO] [stderr] 427 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: use: `a[0]..=b[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:429:14
[INFO] [stderr]     |
[INFO] [stderr] 429 |                 for y in a[1]..b[1]+1
[INFO] [stderr]     |                          ^^^^^^^^^^^^ help: use: `a[1]..=b[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `x` is only used to index `grid`.
[INFO] [stderr]    --> src/main.rs:448:13
[INFO] [stderr]     |
[INFO] [stderr] 448 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 448 |             for <item> in grid.iter_mut().take(b[0]+1).skip(a[0])
[INFO] [stderr]     |                 ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:448:13
[INFO] [stderr]     |
[INFO] [stderr] 448 |             for x in a[0]..b[0]+1
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: use: `a[0]..=b[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:450:14
[INFO] [stderr]     |
[INFO] [stderr] 450 |                 for y in a[1]..b[1]+1
[INFO] [stderr]     |                          ^^^^^^^^^^^^ help: use: `a[1]..=b[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:463:13
[INFO] [stderr]     |
[INFO] [stderr] 463 |             count += col as u32;
[INFO] [stderr]     |                      ^^^^^^^^^^ help: try: `u32::from(col)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/main.rs:487:2
[INFO] [stderr]     |
[INFO] [stderr] 487 |       match op
[INFO] [stderr]     |  _____^
[INFO] [stderr] 488 | |     {
[INFO] [stderr] 489 | |         &Operation::AssignVar(src) => 
[INFO] [stderr] 490 | |         {
[INFO] [stderr] ...   |
[INFO] [stderr] 580 | |         }        
[INFO] [stderr] 581 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 487 |     match *op
[INFO] [stderr] 488 |     {
[INFO] [stderr] 489 |         Operation::AssignVar(src) => 
[INFO] [stderr] 490 |         {
[INFO] [stderr] 491 |             if h.contains_key(src)
[INFO] [stderr] 492 |             {
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/main.rs:648:8
[INFO] [stderr]     |
[INFO] [stderr] 648 |     while wires.len() > 0
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!wires.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.30s
[INFO] running `"docker" "inspect" "c59ebc035e1f565cadce03b38961a38a254983e0d7adf8d1c9b61132ed5460ee"`
[INFO] running `"docker" "rm" "-f" "c59ebc035e1f565cadce03b38961a38a254983e0d7adf8d1c9b61132ed5460ee"`
[INFO] [stdout] c59ebc035e1f565cadce03b38961a38a254983e0d7adf8d1c9b61132ed5460ee