[INFO] cloning repository https://github.com/balintbalazs/advent-of-code-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/balintbalazs/advent-of-code-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbalintbalazs%2Fadvent-of-code-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbalintbalazs%2Fadvent-of-code-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a4d61a71442e88c05f01062db2194a9792ceb5ce
[INFO] linting balintbalazs/advent-of-code-2020 against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbalintbalazs%2Fadvent-of-code-2020" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/balintbalazs/advent-of-code-2020
[INFO] finished tweaking git repo https://github.com/balintbalazs/advent-of-code-2020
[INFO] tweaked toml for git repo https://github.com/balintbalazs/advent-of-code-2020 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/balintbalazs/advent-of-code-2020 on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/balintbalazs/advent-of-code-2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded scan_fmt v0.2.5
[INFO] [stderr]   Downloaded syn v1.0.53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0432496c46760532fd399aeb5b985ec59791e84f66cb928ec9b32028d9c9c7cb
[INFO] running `Command { std: "docker" "start" "-a" "0432496c46760532fd399aeb5b985ec59791e84f66cb928ec9b32028d9c9c7cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0432496c46760532fd399aeb5b985ec59791e84f66cb928ec9b32028d9c9c7cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0432496c46760532fd399aeb5b985ec59791e84f66cb928ec9b32028d9c9c7cb", kill_on_drop: false }`
[INFO] [stdout] 0432496c46760532fd399aeb5b985ec59791e84f66cb928ec9b32028d9c9c7cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5ad0171359194da9b787965c11fa26bf23a9322b87e4c54b499e3c52892911f
[INFO] running `Command { std: "docker" "start" "-a" "e5ad0171359194da9b787965c11fa26bf23a9322b87e4c54b499e3c52892911f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking scan_fmt v0.2.5
[INFO] [stderr]     Checking pp v0.1.0 (/opt/rustwide/workdir/pp)
[INFO] [stdout] warning: this import is redundant
[INFO] [stdout]  --> pp/src/error.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std;
[INFO] [stdout]   | ^^^^^^^^ help: remove it entirely
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_component_path_imports
[INFO] [stdout]   = note: `#[warn(clippy::single_component_path_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this import is redundant
[INFO] [stdout]  --> pp/src/error.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std;
[INFO] [stdout]   | ^^^^^^^^ help: remove it entirely
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_component_path_imports
[INFO] [stdout]   = note: `#[warn(clippy::single_component_path_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `from_str` can be confused for the standard trait method `std::str::FromStr::from_str`
[INFO] [stdout]   --> pp/src/de.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | /     pub fn from_str(input: &'de str) -> Self {
[INFO] [stdout] 22 | |         Deserializer {
[INFO] [stdout] 23 | |             input,
[INFO] [stdout] 24 | |             pos: 0,
[INFO] [stdout] ...  |
[INFO] [stdout] 27 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider implementing the trait `std::str::FromStr` or choosing a less ambiguous method name
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#should_implement_trait
[INFO] [stdout]    = note: `#[warn(clippy::should_implement_trait)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> pp/src/de.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         self.pos = self.pos + ch.len_utf8();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos += ch.len_utf8()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> pp/src/de.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |             self.pos = self.pos + "true".len();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos += "true".len()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> pp/src/de.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 71 |             self.pos = self.pos + "false".len();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos += "false".len()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> pp/src/de.rs:98:21
[INFO] [stdout]    |
[INFO] [stdout] 98 |                     self.pos = self.pos + 1;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> pp/src/de.rs:145:9
[INFO] [stdout]     |
[INFO] [stdout] 145 |         self.pos = self.pos + len;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos += len`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]    --> pp/src/de.rs:151:11
[INFO] [stdout]     |
[INFO] [stdout] 151 | impl<'de, 'a> de::Deserializer<'de> for &'a mut Deserializer<'de> {
[INFO] [stdout]     |           ^^                             ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout]     = note: `#[warn(clippy::needless_lifetimes)]` on by default
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]     |
[INFO] [stdout] 151 - impl<'de, 'a> de::Deserializer<'de> for &'a mut Deserializer<'de> {
[INFO] [stdout] 151 + impl<'de> de::Deserializer<'de> for &mut Deserializer<'de> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> pp/src/de.rs:316:13
[INFO] [stdout]     |
[INFO] [stdout] 316 |             self.pos = self.pos + "null".len();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos += "null".len()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> pp/src/de.rs:357:59
[INFO] [stdout]     |
[INFO] [stdout] 357 |         let value = visitor.visit_seq(SpaceSeparated::new(&mut self))?;
[INFO] [stdout]     |                                                           ^^^^^^^^^ help: change this to: `self`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]     = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> pp/src/de.rs:359:12
[INFO] [stdout]     |
[INFO] [stdout] 359 |         if self.input.len() == 0 || self.next_char()? == '\n' && self.next_char()? == '\n' {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.input.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]     = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> pp/src/de.rs:400:59
[INFO] [stdout]     |
[INFO] [stdout] 400 |         let value = visitor.visit_map(SpaceSeparated::new(&mut self))?;
[INFO] [stdout]     |                                                           ^^^^^^^^^ help: change this to: `self`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> pp/src/de.rs:402:12
[INFO] [stdout]     |
[INFO] [stdout] 402 |         if self.input.len() == 0 || self.input.chars().take(2).collect::<String>() == "\n\n" {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.input.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> pp/src/de.rs:501:12
[INFO] [stdout]     |
[INFO] [stdout] 501 |         if !self.first && !(self.de.next_char()? == '\n' && self.de.next_char()? == '\n') {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `!(self.first || self.de.next_char()? == '\n' && self.de.next_char()? == '\n')`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> pp/src/de.rs:494:12
[INFO] [stdout]     |
[INFO] [stdout] 494 |         if self.de.input.len() == 0 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.de.input.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> pp/src/de.rs:523:12
[INFO] [stdout]     |
[INFO] [stdout] 523 |         if self.de.input.len() == 0 || self.de.input.chars().take(2).collect::<String>() == "\n\n" {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.de.input.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `from_str` can be confused for the standard trait method `std::str::FromStr::from_str`
[INFO] [stdout]   --> pp/src/de.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | /     pub fn from_str(input: &'de str) -> Self {
[INFO] [stdout] 22 | |         Deserializer {
[INFO] [stdout] 23 | |             input,
[INFO] [stdout] 24 | |             pos: 0,
[INFO] [stdout] ...  |
[INFO] [stdout] 27 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider implementing the trait `std::str::FromStr` or choosing a less ambiguous method name
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#should_implement_trait
[INFO] [stdout]    = note: `#[warn(clippy::should_implement_trait)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> pp/src/ser.rs:26:6
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl<'a> ser::Serializer for &'a mut Serializer {
[INFO] [stdout]    |      ^^                       ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 26 - impl<'a> ser::Serializer for &'a mut Serializer {
[INFO] [stdout] 26 + impl ser::Serializer for &mut Serializer {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> pp/src/de.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         self.pos = self.pos + ch.len_utf8();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos += ch.len_utf8()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> pp/src/de.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |             self.pos = self.pos + "true".len();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos += "true".len()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> pp/src/de.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 71 |             self.pos = self.pos + "false".len();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos += "false".len()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]    --> pp/src/ser.rs:275:6
[INFO] [stdout]     |
[INFO] [stdout] 275 | impl<'a> ser::SerializeSeq for &'a mut Serializer {
[INFO] [stdout]     |      ^^                         ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]     |
[INFO] [stdout] 275 - impl<'a> ser::SerializeSeq for &'a mut Serializer {
[INFO] [stdout] 275 + impl ser::SerializeSeq for &mut Serializer {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> pp/src/ser.rs:286:44
[INFO] [stdout]     |
[INFO] [stdout] 286 |         if !self.output.ends_with('\n') && self.output.len() != 0 {
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!self.output.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]    --> pp/src/ser.rs:299:6
[INFO] [stdout]     |
[INFO] [stdout] 299 | impl<'a> ser::SerializeTuple for &'a mut Serializer {
[INFO] [stdout]     |      ^^                           ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]     |
[INFO] [stdout] 299 - impl<'a> ser::SerializeTuple for &'a mut Serializer {
[INFO] [stdout] 299 + impl ser::SerializeTuple for &mut Serializer {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> pp/src/ser.rs:307:44
[INFO] [stdout]     |
[INFO] [stdout] 307 |         if !self.output.ends_with('\n') && self.output.len() != 0 {
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!self.output.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> pp/src/de.rs:98:21
[INFO] [stdout]    |
[INFO] [stdout] 98 |                     self.pos = self.pos + 1;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]    --> pp/src/ser.rs:319:6
[INFO] [stdout]     |
[INFO] [stdout] 319 | impl<'a> ser::SerializeTupleStruct for &'a mut Serializer {
[INFO] [stdout]     |      ^^                                 ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]     |
[INFO] [stdout] 319 - impl<'a> ser::SerializeTupleStruct for &'a mut Serializer {
[INFO] [stdout] 319 + impl ser::SerializeTupleStruct for &mut Serializer {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> pp/src/ser.rs:327:44
[INFO] [stdout]     |
[INFO] [stdout] 327 |         if !self.output.ends_with('\n') && self.output.len() != 0 {
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!self.output.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]    --> pp/src/ser.rs:347:6
[INFO] [stdout]     |
[INFO] [stdout] 347 | impl<'a> ser::SerializeTupleVariant for &'a mut Serializer {
[INFO] [stdout]     |      ^^                                  ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]     |
[INFO] [stdout] 347 - impl<'a> ser::SerializeTupleVariant for &'a mut Serializer {
[INFO] [stdout] 347 + impl ser::SerializeTupleVariant for &mut Serializer {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]    --> pp/src/ser.rs:371:6
[INFO] [stdout]     |
[INFO] [stdout] 371 | impl<'a> ser::SerializeMap for &'a mut Serializer {
[INFO] [stdout]     |      ^^                         ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]     |
[INFO] [stdout] 371 - impl<'a> ser::SerializeMap for &'a mut Serializer {
[INFO] [stdout] 371 + impl ser::SerializeMap for &mut Serializer {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> pp/src/de.rs:145:9
[INFO] [stdout]     |
[INFO] [stdout] 145 |         self.pos = self.pos + len;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos += len`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> pp/src/ser.rs:387:75
[INFO] [stdout]     |
[INFO] [stdout] 387 |         if !self.output.ends_with(' ') && !self.output.ends_with('\n') && self.output.len() != 0 {
[INFO] [stdout]     |                                                                           ^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!self.output.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]    --> pp/src/de.rs:151:11
[INFO] [stdout]     |
[INFO] [stdout] 151 | impl<'de, 'a> de::Deserializer<'de> for &'a mut Deserializer<'de> {
[INFO] [stdout]     |           ^^                             ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout]     = note: `#[warn(clippy::needless_lifetimes)]` on by default
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]     |
[INFO] [stdout] 151 - impl<'de, 'a> de::Deserializer<'de> for &'a mut Deserializer<'de> {
[INFO] [stdout] 151 + impl<'de> de::Deserializer<'de> for &mut Deserializer<'de> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]    --> pp/src/ser.rs:412:6
[INFO] [stdout]     |
[INFO] [stdout] 412 | impl<'a> ser::SerializeStruct for &'a mut Serializer {
[INFO] [stdout]     |      ^^                            ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]     |
[INFO] [stdout] 412 - impl<'a> ser::SerializeStruct for &'a mut Serializer {
[INFO] [stdout] 412 + impl ser::SerializeStruct for &mut Serializer {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> pp/src/ser.rs:420:75
[INFO] [stdout]     |
[INFO] [stdout] 420 |         if !self.output.ends_with(' ') && !self.output.ends_with('\n') && self.output.len() != 0 {
[INFO] [stdout]     |                                                                           ^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!self.output.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]    --> pp/src/ser.rs:436:6
[INFO] [stdout]     |
[INFO] [stdout] 436 | impl<'a> ser::SerializeStructVariant for &'a mut Serializer {
[INFO] [stdout]     |      ^^                                   ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]     |
[INFO] [stdout] 436 - impl<'a> ser::SerializeStructVariant for &'a mut Serializer {
[INFO] [stdout] 436 + impl ser::SerializeStructVariant for &mut Serializer {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> pp/src/de.rs:316:13
[INFO] [stdout]     |
[INFO] [stdout] 316 |             self.pos = self.pos + "null".len();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.pos += "null".len()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> pp/src/de.rs:357:59
[INFO] [stdout]     |
[INFO] [stdout] 357 |         let value = visitor.visit_seq(SpaceSeparated::new(&mut self))?;
[INFO] [stdout]     |                                                           ^^^^^^^^^ help: change this to: `self`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]     = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> pp/src/de.rs:359:12
[INFO] [stdout]     |
[INFO] [stdout] 359 |         if self.input.len() == 0 || self.next_char()? == '\n' && self.next_char()? == '\n' {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.input.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]     = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> pp/src/de.rs:400:59
[INFO] [stdout]     |
[INFO] [stdout] 400 |         let value = visitor.visit_map(SpaceSeparated::new(&mut self))?;
[INFO] [stdout]     |                                                           ^^^^^^^^^ help: change this to: `self`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> pp/src/de.rs:402:12
[INFO] [stdout]     |
[INFO] [stdout] 402 |         if self.input.len() == 0 || self.input.chars().take(2).collect::<String>() == "\n\n" {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.input.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> pp/src/de.rs:501:12
[INFO] [stdout]     |
[INFO] [stdout] 501 |         if !self.first && !(self.de.next_char()? == '\n' && self.de.next_char()? == '\n') {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `!(self.first || self.de.next_char()? == '\n' && self.de.next_char()? == '\n')`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> pp/src/de.rs:494:12
[INFO] [stdout]     |
[INFO] [stdout] 494 |         if self.de.input.len() == 0 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.de.input.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> pp/src/de.rs:523:12
[INFO] [stdout]     |
[INFO] [stdout] 523 |         if self.de.input.len() == 0 || self.de.input.chars().take(2).collect::<String>() == "\n\n" {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.de.input.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking advent-of-code-2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> pp/src/ser.rs:26:6
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl<'a> ser::Serializer for &'a mut Serializer {
[INFO] [stdout]    |      ^^                       ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 26 - impl<'a> ser::Serializer for &'a mut Serializer {
[INFO] [stdout] 26 + impl ser::Serializer for &mut Serializer {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]    --> pp/src/ser.rs:275:6
[INFO] [stdout]     |
[INFO] [stdout] 275 | impl<'a> ser::SerializeSeq for &'a mut Serializer {
[INFO] [stdout]     |      ^^                         ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]     |
[INFO] [stdout] 275 - impl<'a> ser::SerializeSeq for &'a mut Serializer {
[INFO] [stdout] 275 + impl ser::SerializeSeq for &mut Serializer {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> pp/src/ser.rs:286:44
[INFO] [stdout]     |
[INFO] [stdout] 286 |         if !self.output.ends_with('\n') && self.output.len() != 0 {
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!self.output.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]    --> pp/src/ser.rs:299:6
[INFO] [stdout]     |
[INFO] [stdout] 299 | impl<'a> ser::SerializeTuple for &'a mut Serializer {
[INFO] [stdout]     |      ^^                           ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]     |
[INFO] [stdout] 299 - impl<'a> ser::SerializeTuple for &'a mut Serializer {
[INFO] [stdout] 299 + impl ser::SerializeTuple for &mut Serializer {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> pp/src/ser.rs:307:44
[INFO] [stdout]     |
[INFO] [stdout] 307 |         if !self.output.ends_with('\n') && self.output.len() != 0 {
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!self.output.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]    --> pp/src/ser.rs:319:6
[INFO] [stdout]     |
[INFO] [stdout] 319 | impl<'a> ser::SerializeTupleStruct for &'a mut Serializer {
[INFO] [stdout]     |      ^^                                 ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]     |
[INFO] [stdout] 319 - impl<'a> ser::SerializeTupleStruct for &'a mut Serializer {
[INFO] [stdout] 319 + impl ser::SerializeTupleStruct for &mut Serializer {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> pp/src/ser.rs:327:44
[INFO] [stdout]     |
[INFO] [stdout] 327 |         if !self.output.ends_with('\n') && self.output.len() != 0 {
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!self.output.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]    --> pp/src/ser.rs:347:6
[INFO] [stdout]     |
[INFO] [stdout] 347 | impl<'a> ser::SerializeTupleVariant for &'a mut Serializer {
[INFO] [stdout]     |      ^^                                  ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]     |
[INFO] [stdout] 347 - impl<'a> ser::SerializeTupleVariant for &'a mut Serializer {
[INFO] [stdout] 347 + impl ser::SerializeTupleVariant for &mut Serializer {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]    --> pp/src/ser.rs:371:6
[INFO] [stdout]     |
[INFO] [stdout] 371 | impl<'a> ser::SerializeMap for &'a mut Serializer {
[INFO] [stdout]     |      ^^                         ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]     |
[INFO] [stdout] 371 - impl<'a> ser::SerializeMap for &'a mut Serializer {
[INFO] [stdout] 371 + impl ser::SerializeMap for &mut Serializer {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> pp/src/ser.rs:387:75
[INFO] [stdout]     |
[INFO] [stdout] 387 |         if !self.output.ends_with(' ') && !self.output.ends_with('\n') && self.output.len() != 0 {
[INFO] [stdout]     |                                                                           ^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!self.output.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]    --> pp/src/ser.rs:412:6
[INFO] [stdout]     |
[INFO] [stdout] 412 | impl<'a> ser::SerializeStruct for &'a mut Serializer {
[INFO] [stdout]     |      ^^                            ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]     |
[INFO] [stdout] 412 - impl<'a> ser::SerializeStruct for &'a mut Serializer {
[INFO] [stdout] 412 + impl ser::SerializeStruct for &mut Serializer {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> pp/src/ser.rs:420:75
[INFO] [stdout]     |
[INFO] [stdout] 420 |         if !self.output.ends_with(' ') && !self.output.ends_with('\n') && self.output.len() != 0 {
[INFO] [stdout]     |                                                                           ^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!self.output.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]    --> pp/src/ser.rs:436:6
[INFO] [stdout]     |
[INFO] [stdout] 436 | impl<'a> ser::SerializeStructVariant for &'a mut Serializer {
[INFO] [stdout]     |      ^^                                   ^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]     |
[INFO] [stdout] 436 - impl<'a> ser::SerializeStructVariant for &'a mut Serializer {
[INFO] [stdout] 436 + impl ser::SerializeStructVariant for &mut Serializer {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: binary comparison to literal `Option::None`
[INFO] [stdout]   --> src/bin/day9.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |         if None == find_pairs(target, &nums[i-WINDOW..i]) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `Option::is_none()` instead: `find_pairs(target, &nums[i-WINDOW..i]).is_none()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_to_none
[INFO] [stdout]    = note: `#[warn(clippy::partialeq_to_none)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day9.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |             first = first + 1;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^ help: replace it with: `first += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day9.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |             last = last + 1;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ help: replace it with: `last += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]   --> src/bin/day3.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 | /             if line_number % slopes[i].1 == 0 {
[INFO] [stdout] 15 | |                 if line[(slopes[i].0 * line_number / slopes[i].1) % width] == '#' as u8 {
[INFO] [stdout] 16 | |                     trees[i] = trees[i] + 1;
[INFO] [stdout] 17 | |                 }
[INFO] [stdout] 18 | |             }
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout]    = note: `#[warn(clippy::collapsible_if)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]    |
[INFO] [stdout] 14 ~             if line_number % slopes[i].1 == 0
[INFO] [stdout] 15 ~                 && line[(slopes[i].0 * line_number / slopes[i].1) % width] == '#' as u8 {
[INFO] [stdout] 16 |                     trees[i] = trees[i] + 1;
[INFO] [stdout] 17 ~                 }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting a character literal to `u8` truncates
[INFO] [stdout]   --> src/bin/day3.rs:15:79
[INFO] [stdout]    |
[INFO] [stdout] 15 |                 if line[(slopes[i].0 * line_number / slopes[i].1) % width] == '#' as u8 {
[INFO] [stdout]    |                                                                               ^^^^^^^^^ help: use a byte literal instead: `b'#'`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `char` is four bytes wide, but `u8` is a single byte
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stdout]    = note: `#[warn(clippy::char_lit_as_u8)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day3.rs:16:21
[INFO] [stdout]    |
[INFO] [stdout] 16 |                     trees[i] = trees[i] + 1;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `trees[i] += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day3.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |         line_number = line_number + 1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `line_number += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `vec!`
[INFO] [stdout]  --> src/bin/day3.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let slopes = vec![(1, 1), (3, 1), (5, 1), (7, 1), (1, 2)];
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: you can use an array directly: `[(1, 1), (3, 1), (5, 1), (7, 1), (1, 2)]`
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_vec
[INFO] [stdout]   = note: `#[warn(clippy::useless_vec)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:18:20
[INFO] [stdout]    |
[INFO] [stdout] 18 |             'N' => north = north + n,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^ help: replace it with: `north += n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:19:20
[INFO] [stdout]    |
[INFO] [stdout] 19 |             'S' => north = north - n,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^ help: replace it with: `north -= n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:20:20
[INFO] [stdout]    |
[INFO] [stdout] 20 |             'E' => east = east + n,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^ help: replace it with: `east += n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:21:20
[INFO] [stdout]    |
[INFO] [stdout] 21 |             'W' => east = east - n,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^ help: replace it with: `east -= n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:25:22
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 0 => east = east + n,
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^ help: replace it with: `east += n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:26:23
[INFO] [stdout]    |
[INFO] [stdout] 26 |                 90 => north = north + n,
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^ help: replace it with: `north += n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:27:24
[INFO] [stdout]    |
[INFO] [stdout] 27 |                 180 => east = east - n,
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^ help: replace it with: `east -= n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:28:24
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 270 => north = north - n,
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^ help: replace it with: `north -= n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:44:20
[INFO] [stdout]    |
[INFO] [stdout] 44 |             'N' => heading.1 = heading.1 + n,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `heading.1 += n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:45:20
[INFO] [stdout]    |
[INFO] [stdout] 45 |             'S' => heading.1 = heading.1 - n,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `heading.1 -= n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:46:20
[INFO] [stdout]    |
[INFO] [stdout] 46 |             'E' => heading.0 = heading.0 + n,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `heading.0 += n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:47:20
[INFO] [stdout]    |
[INFO] [stdout] 47 |             'W' => heading.0 = heading.0 - n,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `heading.0 -= n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:51:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |                 north = north + n * heading.1;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `north += n * heading.1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 east = east + n * heading.0;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `east += n * heading.0`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:18:20
[INFO] [stdout]    |
[INFO] [stdout] 18 |             'N' => north = north + n,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^ help: replace it with: `north += n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:19:20
[INFO] [stdout]    |
[INFO] [stdout] 19 |             'S' => north = north - n,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^ help: replace it with: `north -= n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:20:20
[INFO] [stdout]    |
[INFO] [stdout] 20 |             'E' => east = east + n,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^ help: replace it with: `east += n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:21:20
[INFO] [stdout]    |
[INFO] [stdout] 21 |             'W' => east = east - n,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^ help: replace it with: `east -= n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:25:22
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 0 => east = east + n,
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^ help: replace it with: `east += n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:26:23
[INFO] [stdout]    |
[INFO] [stdout] 26 |                 90 => north = north + n,
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^ help: replace it with: `north += n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:27:24
[INFO] [stdout]    |
[INFO] [stdout] 27 |                 180 => east = east - n,
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^ help: replace it with: `east -= n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:28:24
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 270 => north = north - n,
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^ help: replace it with: `north -= n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:44:20
[INFO] [stdout]    |
[INFO] [stdout] 44 |             'N' => heading.1 = heading.1 + n,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `heading.1 += n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:45:20
[INFO] [stdout]    |
[INFO] [stdout] 45 |             'S' => heading.1 = heading.1 - n,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `heading.1 -= n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:46:20
[INFO] [stdout]    |
[INFO] [stdout] 46 |             'E' => heading.0 = heading.0 + n,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `heading.0 += n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:47:20
[INFO] [stdout]    |
[INFO] [stdout] 47 |             'W' => heading.0 = heading.0 - n,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `heading.0 -= n`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:51:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |                 north = north + n * heading.1;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `north += n * heading.1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day12.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 east = east + n * heading.0;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `east += n * heading.0`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/bin/day8.rs:41:27
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn run_code(instructions: &Vec<(&str, isize)>) -> (bool, isize) {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout]    = note: `#[warn(clippy::ptr_arg)]` on by default
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 41 - fn run_code(instructions: &Vec<(&str, isize)>) -> (bool, isize) {
[INFO] [stdout] 41 + fn run_code(instructions: &[(&str, isize)]) -> (bool, isize) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day8.rs:54:26
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 "nop" => instruction_pointer = instruction_pointer + 1,
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `instruction_pointer += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day8.rs:56:21
[INFO] [stdout]    |
[INFO] [stdout] 56 |                     accumulator = accumulator + instructions[instruction_pointer].1;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `accumulator += instructions[instruction_pointer].1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day8.rs:57:21
[INFO] [stdout]    |
[INFO] [stdout] 57 |                     instruction_pointer = instruction_pointer + 1;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `instruction_pointer += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `.is_multiple_of()`
[INFO] [stdout]   --> src/bin/day13.rs:39:15
[INFO] [stdout]    |
[INFO] [stdout] 39 |         while (time + ids[curr].1) % ids[curr].0 != 0 {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `!(time + ids[curr].1).is_multiple_of(ids[curr].0)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_is_multiple_of
[INFO] [stdout]    = note: `#[warn(clippy::manual_is_multiple_of)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day13.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |             time = time + step;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `time += step`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day13.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         step = step * ids[curr].0; // all bus ids are prime, otherwise step = lcm(step, ids[curr].0)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `step *= ids[curr].0`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day13.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         curr = curr + 1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: replace it with: `curr += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `if let` since only the `Ok` variant of the iterator element is used
[INFO] [stdout]   --> src/bin/day2.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | /     for line in read_lines("inputs/day2_in.txt")? {
[INFO] [stdout]  9 | |         if let Ok(line) = line {
[INFO] [stdout] 10 | |             if check_rule1(&line) {
[INFO] [stdout] 11 | |                 valid.0 = valid.0 + 1;
[INFO] [stdout] ...  |
[INFO] [stdout] 17 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout] help: try `.flatten()` and remove the `if let` statement in the for loop
[INFO] [stdout]   --> src/bin/day2.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | /         if let Ok(line) = line {
[INFO] [stdout] 10 | |             if check_rule1(&line) {
[INFO] [stdout] 11 | |                 valid.0 = valid.0 + 1;
[INFO] [stdout] ...  |
[INFO] [stdout] 16 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_flatten
[INFO] [stdout]    = note: `#[warn(clippy::manual_flatten)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout]  8 ~     for line in read_lines("inputs/day2_in.txt")?.flatten() {
[INFO] [stdout]  9 +         if check_rule1(&line) {
[INFO] [stdout] 10 +             valid.0 = valid.0 + 1;
[INFO] [stdout] 11 +         }
[INFO] [stdout] 12 +         if check_rule2(&line) {
[INFO] [stdout] 13 +             valid.1 = valid.1 + 1;
[INFO] [stdout] 14 +         }
[INFO] [stdout] 15 +     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day2.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 |                 valid.0 = valid.0 + 1;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `valid.0 += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day2.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |                 valid.1 = valid.1 + 1;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `valid.1 += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print` is never used
[INFO] [stdout]    --> src/bin/day11.rs:173:4
[INFO] [stdout]     |
[INFO] [stdout] 173 | fn print(a: &Vec<Vec<char>>) {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day11.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         counter = counter + 1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `counter += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/bin/day11.rs:52:47
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 let occupied = occupant_count(&seats, i, j);
[INFO] [stdout]    |                                               ^^^^^^ help: change this to: `seats`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]    = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/bin/day11.rs:64:26
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn occupant_count(seats: &Vec<Vec<char>>, i: usize, j: usize) -> u32 {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout]    = note: `#[warn(clippy::ptr_arg)]` on by default
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 64 - fn occupant_count(seats: &Vec<Vec<char>>, i: usize, j: usize) -> u32 {
[INFO] [stdout] 64 + fn occupant_count(seats: &[Vec<char>], i: usize, j: usize) -> u32 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day11.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |             count = count + 1;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^ help: replace it with: `count += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day11.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         di = di + 1;
[INFO] [stdout]    |         ^^^^^^^^^^^ help: replace it with: `di += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day11.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |             count = count + 1;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^ help: replace it with: `count += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day11.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         di = di + 1;
[INFO] [stdout]    |         ^^^^^^^^^^^ help: replace it with: `di += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day11.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 97 |             count = count + 1;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^ help: replace it with: `count += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         dj = dj + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: replace it with: `dj += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |             count = count + 1;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^ help: replace it with: `count += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 |         dj = dj + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: replace it with: `dj += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:121:13
[INFO] [stdout]     |
[INFO] [stdout] 121 |             count = count + 1;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^ help: replace it with: `count += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |         di = di + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: replace it with: `di += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |         dj = dj + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: replace it with: `dj += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout] 134 |             count = count + 1;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^ help: replace it with: `count += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |         di = di + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: replace it with: `di += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |         dj = dj + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: replace it with: `dj += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:147:13
[INFO] [stdout]     |
[INFO] [stdout] 147 |             count = count + 1;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^ help: replace it with: `count += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:153:9
[INFO] [stdout]     |
[INFO] [stdout] 153 |         di = di + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: replace it with: `di += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         dj = dj + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: replace it with: `dj += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:160:13
[INFO] [stdout]     |
[INFO] [stdout] 160 |             count = count + 1;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^ help: replace it with: `count += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:166:9
[INFO] [stdout]     |
[INFO] [stdout] 166 |         di = di + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: replace it with: `di += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         dj = dj + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: replace it with: `dj += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day2.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |             count = count + 1;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^ help: replace it with: `count += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `.is_multiple_of()`
[INFO] [stdout]   --> src/bin/day13.rs:39:15
[INFO] [stdout]    |
[INFO] [stdout] 39 |         while (time + ids[curr].1) % ids[curr].0 != 0 {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `!(time + ids[curr].1).is_multiple_of(ids[curr].0)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_is_multiple_of
[INFO] [stdout]    = note: `#[warn(clippy::manual_is_multiple_of)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day13.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |             time = time + step;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `time += step`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day13.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         step = step * ids[curr].0; // all bus ids are prime, otherwise step = lcm(step, ids[curr].0)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `step *= ids[curr].0`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day13.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         curr = curr + 1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: replace it with: `curr += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: binary comparison to literal `Option::None`
[INFO] [stdout]   --> src/bin/day9.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |         if None == find_pairs(target, &nums[i-WINDOW..i]) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `Option::is_none()` instead: `find_pairs(target, &nums[i-WINDOW..i]).is_none()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_to_none
[INFO] [stdout]    = note: `#[warn(clippy::partialeq_to_none)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day9.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |             first = first + 1;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^ help: replace it with: `first += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day9.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |             last = last + 1;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ help: replace it with: `last += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `if let` since only the `Ok` variant of the iterator element is used
[INFO] [stdout]   --> src/bin/day2.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | /     for line in read_lines("inputs/day2_in.txt")? {
[INFO] [stdout]  9 | |         if let Ok(line) = line {
[INFO] [stdout] 10 | |             if check_rule1(&line) {
[INFO] [stdout] 11 | |                 valid.0 = valid.0 + 1;
[INFO] [stdout] ...  |
[INFO] [stdout] 17 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout] help: try `.flatten()` and remove the `if let` statement in the for loop
[INFO] [stdout]   --> src/bin/day2.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | /         if let Ok(line) = line {
[INFO] [stdout] 10 | |             if check_rule1(&line) {
[INFO] [stdout] 11 | |                 valid.0 = valid.0 + 1;
[INFO] [stdout] ...  |
[INFO] [stdout] 16 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_flatten
[INFO] [stdout]    = note: `#[warn(clippy::manual_flatten)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout]  8 ~     for line in read_lines("inputs/day2_in.txt")?.flatten() {
[INFO] [stdout]  9 +         if check_rule1(&line) {
[INFO] [stdout] 10 +             valid.0 = valid.0 + 1;
[INFO] [stdout] 11 +         }
[INFO] [stdout] 12 +         if check_rule2(&line) {
[INFO] [stdout] 13 +             valid.1 = valid.1 + 1;
[INFO] [stdout] 14 +         }
[INFO] [stdout] 15 +     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day2.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 |                 valid.0 = valid.0 + 1;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `valid.0 += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day2.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |                 valid.1 = valid.1 + 1;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `valid.1 += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day2.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |             count = count + 1;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^ help: replace it with: `count += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print` is never used
[INFO] [stdout]    --> src/bin/day11.rs:173:4
[INFO] [stdout]     |
[INFO] [stdout] 173 | fn print(a: &Vec<Vec<char>>) {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day11.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         counter = counter + 1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `counter += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/bin/day11.rs:52:47
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 let occupied = occupant_count(&seats, i, j);
[INFO] [stdout]    |                                               ^^^^^^ help: change this to: `seats`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]    = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/bin/day11.rs:64:26
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn occupant_count(seats: &Vec<Vec<char>>, i: usize, j: usize) -> u32 {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout]    = note: `#[warn(clippy::ptr_arg)]` on by default
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 64 - fn occupant_count(seats: &Vec<Vec<char>>, i: usize, j: usize) -> u32 {
[INFO] [stdout] 64 + fn occupant_count(seats: &[Vec<char>], i: usize, j: usize) -> u32 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day11.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |             count = count + 1;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^ help: replace it with: `count += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day11.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         di = di + 1;
[INFO] [stdout]    |         ^^^^^^^^^^^ help: replace it with: `di += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day11.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |             count = count + 1;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^ help: replace it with: `count += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day11.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         di = di + 1;
[INFO] [stdout]    |         ^^^^^^^^^^^ help: replace it with: `di += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day11.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 97 |             count = count + 1;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^ help: replace it with: `count += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         dj = dj + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: replace it with: `dj += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |             count = count + 1;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^ help: replace it with: `count += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 |         dj = dj + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: replace it with: `dj += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:121:13
[INFO] [stdout]     |
[INFO] [stdout] 121 |             count = count + 1;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^ help: replace it with: `count += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |         di = di + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: replace it with: `di += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |         dj = dj + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: replace it with: `dj += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout] 134 |             count = count + 1;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^ help: replace it with: `count += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |         di = di + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: replace it with: `di += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |         dj = dj + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: replace it with: `dj += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:147:13
[INFO] [stdout]     |
[INFO] [stdout] 147 |             count = count + 1;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^ help: replace it with: `count += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:153:9
[INFO] [stdout]     |
[INFO] [stdout] 153 |         di = di + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: replace it with: `di += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         dj = dj + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: replace it with: `dj += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:160:13
[INFO] [stdout]     |
[INFO] [stdout] 160 |             count = count + 1;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^ help: replace it with: `count += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:166:9
[INFO] [stdout]     |
[INFO] [stdout] 166 |         di = di + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: replace it with: `di += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/bin/day11.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         dj = dj + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^ help: replace it with: `dj += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]   --> src/bin/day3.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 | /             if line_number % slopes[i].1 == 0 {
[INFO] [stdout] 15 | |                 if line[(slopes[i].0 * line_number / slopes[i].1) % width] == '#' as u8 {
[INFO] [stdout] 16 | |                     trees[i] = trees[i] + 1;
[INFO] [stdout] 17 | |                 }
[INFO] [stdout] 18 | |             }
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout]    = note: `#[warn(clippy::collapsible_if)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]    |
[INFO] [stdout] 14 ~             if line_number % slopes[i].1 == 0
[INFO] [stdout] 15 ~                 && line[(slopes[i].0 * line_number / slopes[i].1) % width] == '#' as u8 {
[INFO] [stdout] 16 |                     trees[i] = trees[i] + 1;
[INFO] [stdout] 17 ~                 }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting a character literal to `u8` truncates
[INFO] [stdout]   --> src/bin/day3.rs:15:79
[INFO] [stdout]    |
[INFO] [stdout] 15 |                 if line[(slopes[i].0 * line_number / slopes[i].1) % width] == '#' as u8 {
[INFO] [stdout]    |                                                                               ^^^^^^^^^ help: use a byte literal instead: `b'#'`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `char` is four bytes wide, but `u8` is a single byte
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stdout]    = note: `#[warn(clippy::char_lit_as_u8)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day3.rs:16:21
[INFO] [stdout]    |
[INFO] [stdout] 16 |                     trees[i] = trees[i] + 1;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `trees[i] += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day3.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |         line_number = line_number + 1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `line_number += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `vec!`
[INFO] [stdout]  --> src/bin/day3.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let slopes = vec![(1, 1), (3, 1), (5, 1), (7, 1), (1, 2)];
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: you can use an array directly: `[(1, 1), (3, 1), (5, 1), (7, 1), (1, 2)]`
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_vec
[INFO] [stdout]   = note: `#[warn(clippy::useless_vec)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cid` is never read
[INFO] [stdout]   --> src/bin/day4.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | struct Passport {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     cid: Option<String>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Passport` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/bin/day8.rs:41:27
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn run_code(instructions: &Vec<(&str, isize)>) -> (bool, isize) {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout]    = note: `#[warn(clippy::ptr_arg)]` on by default
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 41 - fn run_code(instructions: &Vec<(&str, isize)>) -> (bool, isize) {
[INFO] [stdout] 41 + fn run_code(instructions: &[(&str, isize)]) -> (bool, isize) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day8.rs:54:26
[INFO] [stdout]    |
[INFO] [stdout] 54 |                 "nop" => instruction_pointer = instruction_pointer + 1,
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `instruction_pointer += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day8.rs:56:21
[INFO] [stdout]    |
[INFO] [stdout] 56 |                     accumulator = accumulator + instructions[instruction_pointer].1;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `accumulator += instructions[instruction_pointer].1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/bin/day8.rs:57:21
[INFO] [stdout]    |
[INFO] [stdout] 57 |                     instruction_pointer = instruction_pointer + 1;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `instruction_pointer += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cid` is never read
[INFO] [stdout]   --> src/bin/day4.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | struct Passport {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     cid: Option<String>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Passport` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual `!RangeInclusive::contains` implementation
[INFO] [stdout]   --> src/bin/day4.rs:61:28
[INFO] [stdout]    |
[INFO] [stdout] 61 |                         if hgt < 150 || hgt > 193 {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^ help: use: `!(150..=193).contains(&hgt)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_range_contains
[INFO] [stdout]    = note: `#[warn(clippy::manual_range_contains)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual `!RangeInclusive::contains` implementation
[INFO] [stdout]   --> src/bin/day4.rs:69:28
[INFO] [stdout]    |
[INFO] [stdout] 69 |                         if hgt < 59 || hgt > 76 {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^ help: use: `!(59..=76).contains(&hgt)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_range_contains
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `vec!`
[INFO] [stdout]   --> src/bin/day4.rs:90:22
[INFO] [stdout]    |
[INFO] [stdout] 90 |         let colors = vec!["amb", "blu", "brn", "gry", "grn", "hzl", "oth"];
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: you can use an array directly: `["amb", "blu", "brn", "gry", "grn", "hzl", "oth"]`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_vec
[INFO] [stdout]    = note: `#[warn(clippy::useless_vec)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual `!RangeInclusive::contains` implementation
[INFO] [stdout]   --> src/bin/day4.rs:61:28
[INFO] [stdout]    |
[INFO] [stdout] 61 |                         if hgt < 150 || hgt > 193 {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^ help: use: `!(150..=193).contains(&hgt)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_range_contains
[INFO] [stdout]    = note: `#[warn(clippy::manual_range_contains)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual `!RangeInclusive::contains` implementation
[INFO] [stdout]   --> src/bin/day4.rs:69:28
[INFO] [stdout]    |
[INFO] [stdout] 69 |                         if hgt < 59 || hgt > 76 {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^ help: use: `!(59..=76).contains(&hgt)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_range_contains
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `vec!`
[INFO] [stdout]   --> src/bin/day4.rs:90:22
[INFO] [stdout]    |
[INFO] [stdout] 90 |         let colors = vec!["amb", "blu", "brn", "gry", "grn", "hzl", "oth"];
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: you can use an array directly: `["amb", "blu", "brn", "gry", "grn", "hzl", "oth"]`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_vec
[INFO] [stdout]    = note: `#[warn(clippy::useless_vec)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.58s
[INFO] running `Command { std: "docker" "inspect" "e5ad0171359194da9b787965c11fa26bf23a9322b87e4c54b499e3c52892911f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5ad0171359194da9b787965c11fa26bf23a9322b87e4c54b499e3c52892911f", kill_on_drop: false }`
[INFO] [stdout] e5ad0171359194da9b787965c11fa26bf23a9322b87e4c54b499e3c52892911f