[INFO] cloning repository https://github.com/kstrohbeck/aoc-2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kstrohbeck/aoc-2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkstrohbeck%2Faoc-2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkstrohbeck%2Faoc-2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 30940d65f60c3d781b0bde46e443339c7698b582
[INFO] testing kstrohbeck/aoc-2021 against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkstrohbeck%2Faoc-2021" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kstrohbeck/aoc-2021
[INFO] finished tweaking git repo https://github.com/kstrohbeck/aoc-2021
[INFO] tweaked toml for git repo https://github.com/kstrohbeck/aoc-2021 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kstrohbeck/aoc-2021 on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kstrohbeck/aoc-2021 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num v0.4.0
[INFO] [stderr]   Downloaded num-rational v0.4.0
[INFO] [stderr]   Downloaded memoffset v0.6.4
[INFO] [stderr]   Downloaded version_check v0.9.3
[INFO] [stderr]   Downloaded rayon-core v1.9.1
[INFO] [stderr]   Downloaded num-complex v0.4.0
[INFO] [stderr]   Downloaded num-bigint v0.4.3
[INFO] [stderr]   Downloaded rayon v1.5.1
[INFO] [stderr]   Downloaded itertools v0.10.1
[INFO] [stderr]   Downloaded libc v0.2.108
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6923df3df289df8c8bbadbf188b61818dfa544fe8b17afa6e50af2554a74614
[INFO] running `Command { std: "docker" "start" "-a" "a6923df3df289df8c8bbadbf188b61818dfa544fe8b17afa6e50af2554a74614", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6923df3df289df8c8bbadbf188b61818dfa544fe8b17afa6e50af2554a74614", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6923df3df289df8c8bbadbf188b61818dfa544fe8b17afa6e50af2554a74614", kill_on_drop: false }`
[INFO] [stdout] a6923df3df289df8c8bbadbf188b61818dfa544fe8b17afa6e50af2554a74614
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a667260478c3ee9ae1d1de9bc512a8e6e955a377164b27eedfc199dffb3c6e8
[INFO] running `Command { std: "docker" "start" "-a" "7a667260478c3ee9ae1d1de9bc512a8e6e955a377164b27eedfc199dffb3c6e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling aoc-2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `VecDeque`
[INFO] [stdout]  --> src/day_12.rs:3:37
[INFO] [stdout]   |
[INFO] [stdout] 3 |     collections::{HashMap, HashSet, VecDeque},
[INFO] [stdout]   |                                     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> src/day_16.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 |     error::{Error, ErrorKind, ParseError},
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::utils::Vec2d`
[INFO] [stdout]  --> src/day_19.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::utils::Vec2d;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops`
[INFO] [stdout]  --> src/day_22.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{fmt, ops};
[INFO] [stdout]   |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `eight`
[INFO] [stdout]    --> src/day_08.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let eight = eight.ok_or("no 8 given")?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_eight`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day_16.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn hex_string(mut input: &str) -> IResult<&str, Vec<u8>> {
[INFO] [stdout]    |               ----^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op_type`
[INFO] [stdout]   --> src/day_16.rs:68:17
[INFO] [stdout]    |
[INFO] [stdout] 68 |                 op_type,
[INFO] [stdout]    |                 ^^^^^^^ help: try ignoring the field: `op_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/day_18.rs:156:15
[INFO] [stdout]     |
[INFO] [stdout] 156 |     fn sum<I>(mut iter: I) -> Self
[INFO] [stdout]     |               ----^^^^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/day_20.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |         mut image,
[INFO] [stdout]   |         ----^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day_20.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         mut image,
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day_21.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let (mut p1, mut p2) = parse(&data);
[INFO] [stdout]    |          ----^^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day_21.rs:22:18
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let (mut p1, mut p2) = parse(&data);
[INFO] [stdout]    |                  ----^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant `FULL` is never used
[INFO] [stdout]    --> src/day_08.rs:167:11
[INFO] [stdout]     |
[INFO] [stdout] 165 | impl Digit {
[INFO] [stdout]     | ---------- associated constant in this implementation
[INFO] [stdout] 166 |     const EMPTY: Self = Self(0b00000000);
[INFO] [stdout] 167 |     const FULL: Self = Self(0b01111111);
[INFO] [stdout]     |           ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `rule_pairs` is never used
[INFO] [stdout]   --> src/day_14.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 77 | impl Rules {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 78 |     fn rule_pairs(&self, pair: (char, char)) -> Option<((char, char), (char, char))> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/day_15.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | impl State {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 72 |     fn new(position: (usize, usize)) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `literal` and `operator` are never used
[INFO] [stdout]   --> src/day_16.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl Packet {
[INFO] [stdout]    | ----------- associated functions in this implementation
[INFO] [stdout] 47 |     fn literal(version: u8, num: usize) -> Self {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     fn operator(version: u8, op_type: OperatorType, subpackets: Vec<Packet>) -> Self {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print` is never used
[INFO] [stdout]    --> src/day_20.rs:122:8
[INFO] [stdout]     |
[INFO] [stdout] 51  | impl Image {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 122 |     fn print(&self) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_char` is never used
[INFO] [stdout]    --> src/day_20.rs:219:8
[INFO] [stdout]     |
[INFO] [stdout] 218 | impl Pixel {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] 219 |     fn as_char(self) -> char {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `try_adding` is never used
[INFO] [stdout]    --> src/day_22.rs:175:8
[INFO] [stdout]     |
[INFO] [stdout] 122 | impl Cube {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 175 |     fn try_adding(self, rhs: Self) -> Option<Cube> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `non_overlapping` and `try_adding` are never used
[INFO] [stdout]    --> src/day_22.rs:257:8
[INFO] [stdout]     |
[INFO] [stdout] 222 | impl Segment {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 257 |     fn non_overlapping(self, rhs: Self) -> SegmentNonOverlappingIter {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 261 |     fn try_adding(self, rhs: Self) -> Option<Self> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/day_12.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn parse(input: &str) -> Graph {
[INFO] [stdout]    |                 ^^^^     ----- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn parse(input: &str) -> Graph<'_> {
[INFO] [stdout]    |                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/day_12.rs:112:17
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn graph(input: &str) -> IResult<&str, Graph> {
[INFO] [stdout]     |                 ^^^^             ----  ----- the lifetimes get resolved as `'_`
[INFO] [stdout]     |                 |                |
[INFO] [stdout]     |                 |                the lifetimes get resolved as `'_`
[INFO] [stdout]     |                 this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn graph(input: &str) -> IResult<&str, Graph<'_>> {
[INFO] [stdout]     |                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/day_12.rs:127:16
[INFO] [stdout]     |
[INFO] [stdout] 127 | fn edge(input: &str) -> IResult<&str, (Node, Node)> {
[INFO] [stdout]     |                ^^^^             ----   ----  ---- the lifetimes get resolved as `'_`
[INFO] [stdout]     |                |                |      |
[INFO] [stdout]     |                |                |      the lifetimes get resolved as `'_`
[INFO] [stdout]     |                |                the lifetimes get resolved as `'_`
[INFO] [stdout]     |                this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 127 | fn edge(input: &str) -> IResult<&str, (Node<'_>, Node<'_>)> {
[INFO] [stdout]     |                                            ++++      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/day_12.rs:165:16
[INFO] [stdout]     |
[INFO] [stdout] 165 | fn node(input: &str) -> IResult<&str, Node> {
[INFO] [stdout]     |                ^^^^             ----  ---- the lifetimes get resolved as `'_`
[INFO] [stdout]     |                |                |
[INFO] [stdout]     |                |                the lifetimes get resolved as `'_`
[INFO] [stdout]     |                this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 165 | fn node(input: &str) -> IResult<&str, Node<'_>> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/day_18.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |             mem::replace(self, Self::Literal(0));
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 77 |             let _ = mem::replace(self, Self::Literal(0));
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/day_21.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     std::mem::replace(a, new_a);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let _ = std::mem::replace(a, new_a);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.49s
[INFO] running `Command { std: "docker" "inspect" "7a667260478c3ee9ae1d1de9bc512a8e6e955a377164b27eedfc199dffb3c6e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a667260478c3ee9ae1d1de9bc512a8e6e955a377164b27eedfc199dffb3c6e8", kill_on_drop: false }`
[INFO] [stdout] 7a667260478c3ee9ae1d1de9bc512a8e6e955a377164b27eedfc199dffb3c6e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ecd17a9b35eb7b6da3f2e6628662caeda1e7374b9228520d1cc5bd6008dd79d
[INFO] running `Command { std: "docker" "start" "-a" "0ecd17a9b35eb7b6da3f2e6628662caeda1e7374b9228520d1cc5bd6008dd79d", kill_on_drop: false }`
[INFO] [stderr]    Compiling aoc-2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `VecDeque`
[INFO] [stdout]  --> src/day_12.rs:3:37
[INFO] [stdout]   |
[INFO] [stdout] 3 |     collections::{HashMap, HashSet, VecDeque},
[INFO] [stdout]   |                                     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> src/day_16.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 |     error::{Error, ErrorKind, ParseError},
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::utils::Vec2d`
[INFO] [stdout]  --> src/day_19.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::utils::Vec2d;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops`
[INFO] [stdout]  --> src/day_22.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{fmt, ops};
[INFO] [stdout]   |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `eight`
[INFO] [stdout]    --> src/day_08.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let eight = eight.ok_or("no 8 given")?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_eight`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day_16.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn hex_string(mut input: &str) -> IResult<&str, Vec<u8>> {
[INFO] [stdout]    |               ----^^^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op_type`
[INFO] [stdout]   --> src/day_16.rs:68:17
[INFO] [stdout]    |
[INFO] [stdout] 68 |                 op_type,
[INFO] [stdout]    |                 ^^^^^^^ help: try ignoring the field: `op_type: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/day_18.rs:156:15
[INFO] [stdout]     |
[INFO] [stdout] 156 |     fn sum<I>(mut iter: I) -> Self
[INFO] [stdout]     |               ----^^^^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/day_20.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |         mut image,
[INFO] [stdout]   |         ----^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day_20.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         mut image,
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day_21.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let (mut p1, mut p2) = parse(&data);
[INFO] [stdout]    |          ----^^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day_21.rs:22:18
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let (mut p1, mut p2) = parse(&data);
[INFO] [stdout]    |                  ----^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant `FULL` is never used
[INFO] [stdout]    --> src/day_08.rs:167:11
[INFO] [stdout]     |
[INFO] [stdout] 165 | impl Digit {
[INFO] [stdout]     | ---------- associated constant in this implementation
[INFO] [stdout] 166 |     const EMPTY: Self = Self(0b00000000);
[INFO] [stdout] 167 |     const FULL: Self = Self(0b01111111);
[INFO] [stdout]     |           ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `rule_pairs` is never used
[INFO] [stdout]   --> src/day_14.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 77 | impl Rules {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 78 |     fn rule_pairs(&self, pair: (char, char)) -> Option<((char, char), (char, char))> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/day_15.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | impl State {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 72 |     fn new(position: (usize, usize)) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print` is never used
[INFO] [stdout]    --> src/day_20.rs:122:8
[INFO] [stdout]     |
[INFO] [stdout] 51  | impl Image {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 122 |     fn print(&self) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_char` is never used
[INFO] [stdout]    --> src/day_20.rs:219:8
[INFO] [stdout]     |
[INFO] [stdout] 218 | impl Pixel {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] 219 |     fn as_char(self) -> char {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/day_12.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn parse(input: &str) -> Graph {
[INFO] [stdout]    |                 ^^^^     ----- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn parse(input: &str) -> Graph<'_> {
[INFO] [stdout]    |                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/day_12.rs:112:17
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn graph(input: &str) -> IResult<&str, Graph> {
[INFO] [stdout]     |                 ^^^^             ----  ----- the lifetimes get resolved as `'_`
[INFO] [stdout]     |                 |                |
[INFO] [stdout]     |                 |                the lifetimes get resolved as `'_`
[INFO] [stdout]     |                 this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn graph(input: &str) -> IResult<&str, Graph<'_>> {
[INFO] [stdout]     |                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/day_12.rs:127:16
[INFO] [stdout]     |
[INFO] [stdout] 127 | fn edge(input: &str) -> IResult<&str, (Node, Node)> {
[INFO] [stdout]     |                ^^^^             ----   ----  ---- the lifetimes get resolved as `'_`
[INFO] [stdout]     |                |                |      |
[INFO] [stdout]     |                |                |      the lifetimes get resolved as `'_`
[INFO] [stdout]     |                |                the lifetimes get resolved as `'_`
[INFO] [stdout]     |                this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 127 | fn edge(input: &str) -> IResult<&str, (Node<'_>, Node<'_>)> {
[INFO] [stdout]     |                                            ++++      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/day_12.rs:165:16
[INFO] [stdout]     |
[INFO] [stdout] 165 | fn node(input: &str) -> IResult<&str, Node> {
[INFO] [stdout]     |                ^^^^             ----  ---- the lifetimes get resolved as `'_`
[INFO] [stdout]     |                |                |
[INFO] [stdout]     |                |                the lifetimes get resolved as `'_`
[INFO] [stdout]     |                this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 165 | fn node(input: &str) -> IResult<&str, Node<'_>> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/day_18.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |             mem::replace(self, Self::Literal(0));
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 77 |             let _ = mem::replace(self, Self::Literal(0));
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/day_21.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     std::mem::replace(a, new_a);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let _ = std::mem::replace(a, new_a);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.34s
[INFO] running `Command { std: "docker" "inspect" "0ecd17a9b35eb7b6da3f2e6628662caeda1e7374b9228520d1cc5bd6008dd79d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ecd17a9b35eb7b6da3f2e6628662caeda1e7374b9228520d1cc5bd6008dd79d", kill_on_drop: false }`
[INFO] [stdout] 0ecd17a9b35eb7b6da3f2e6628662caeda1e7374b9228520d1cc5bd6008dd79d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1df45292b7977af13e5f48ba4fc742b3375cda71a853e06826907b4674c28030
[INFO] running `Command { std: "docker" "start" "-a" "1df45292b7977af13e5f48ba4fc742b3375cda71a853e06826907b4674c28030", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `VecDeque`
[INFO] [stderr]  --> src/day_12.rs:3:37
[INFO] [stderr]   |
[INFO] [stderr] 3 |     collections::{HashMap, HashSet, VecDeque},
[INFO] [stderr]   |                                     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Error`
[INFO] [stderr]  --> src/day_16.rs:3:13
[INFO] [stderr]   |
[INFO] [stderr] 3 |     error::{Error, ErrorKind, ParseError},
[INFO] [stderr]   |             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::utils::Vec2d`
[INFO] [stderr]  --> src/day_19.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use super::utils::Vec2d;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ops`
[INFO] [stderr]  --> src/day_22.rs:3:16
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::{fmt, ops};
[INFO] [stderr]   |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `eight`
[INFO] [stderr]    --> src/day_08.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let eight = eight.ok_or("no 8 given")?;
[INFO] [stderr]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_eight`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day_16.rs:27:15
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn hex_string(mut input: &str) -> IResult<&str, Vec<u8>> {
[INFO] [stderr]    |               ----^^^^^
[INFO] [stderr]    |               |
[INFO] [stderr]    |               help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op_type`
[INFO] [stderr]   --> src/day_16.rs:68:17
[INFO] [stderr]    |
[INFO] [stderr] 68 |                 op_type,
[INFO] [stderr]    |                 ^^^^^^^ help: try ignoring the field: `op_type: _`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/day_18.rs:156:15
[INFO] [stderr]     |
[INFO] [stderr] 156 |     fn sum<I>(mut iter: I) -> Self
[INFO] [stderr]     |               ----^^^^
[INFO] [stderr]     |               |
[INFO] [stderr]     |               help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/day_20.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |         mut image,
[INFO] [stderr]   |         ----^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day_20.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |         mut image,
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day_21.rs:22:10
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let (mut p1, mut p2) = parse(&data);
[INFO] [stderr]    |          ----^^
[INFO] [stderr]    |          |
[INFO] [stderr]    |          help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day_21.rs:22:18
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let (mut p1, mut p2) = parse(&data);
[INFO] [stderr]    |                  ----^^
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: associated constant `FULL` is never used
[INFO] [stderr]    --> src/day_08.rs:167:11
[INFO] [stderr]     |
[INFO] [stderr] 165 | impl Digit {
[INFO] [stderr]     | ---------- associated constant in this implementation
[INFO] [stderr] 166 |     const EMPTY: Self = Self(0b00000000);
[INFO] [stderr] 167 |     const FULL: Self = Self(0b01111111);
[INFO] [stderr]     |           ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `rule_pairs` is never used
[INFO] [stderr]   --> src/day_14.rs:78:8
[INFO] [stderr]    |
[INFO] [stderr] 77 | impl Rules {
[INFO] [stderr]    | ---------- method in this implementation
[INFO] [stderr] 78 |     fn rule_pairs(&self, pair: (char, char)) -> Option<((char, char), (char, char))> {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/day_15.rs:72:8
[INFO] [stderr]    |
[INFO] [stderr] 71 | impl State {
[INFO] [stderr]    | ---------- associated function in this implementation
[INFO] [stderr] 72 |     fn new(position: (usize, usize)) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `print` is never used
[INFO] [stderr]    --> src/day_20.rs:122:8
[INFO] [stderr]     |
[INFO] [stderr] 51  | impl Image {
[INFO] [stderr]     | ---------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 122 |     fn print(&self) {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `as_char` is never used
[INFO] [stderr]    --> src/day_20.rs:219:8
[INFO] [stderr]     |
[INFO] [stderr] 218 | impl Pixel {
[INFO] [stderr]     | ---------- method in this implementation
[INFO] [stderr] 219 |     fn as_char(self) -> char {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> src/day_12.rs:19:17
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn parse(input: &str) -> Graph {
[INFO] [stderr]    |                 ^^^^     ----- the lifetime gets resolved as `'_`
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn parse(input: &str) -> Graph<'_> {
[INFO] [stderr]    |                               ++++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]    --> src/day_12.rs:112:17
[INFO] [stderr]     |
[INFO] [stderr] 112 | fn graph(input: &str) -> IResult<&str, Graph> {
[INFO] [stderr]     |                 ^^^^             ----  ----- the lifetimes get resolved as `'_`
[INFO] [stderr]     |                 |                |
[INFO] [stderr]     |                 |                the lifetimes get resolved as `'_`
[INFO] [stderr]     |                 this lifetime flows to the output
[INFO] [stderr]     |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]     |
[INFO] [stderr] 112 | fn graph(input: &str) -> IResult<&str, Graph<'_>> {
[INFO] [stderr]     |                                             ++++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]    --> src/day_12.rs:127:16
[INFO] [stderr]     |
[INFO] [stderr] 127 | fn edge(input: &str) -> IResult<&str, (Node, Node)> {
[INFO] [stderr]     |                ^^^^             ----   ----  ---- the lifetimes get resolved as `'_`
[INFO] [stderr]     |                |                |      |
[INFO] [stderr]     |                |                |      the lifetimes get resolved as `'_`
[INFO] [stderr]     |                |                the lifetimes get resolved as `'_`
[INFO] [stderr]     |                this lifetime flows to the output
[INFO] [stderr]     |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]     |
[INFO] [stderr] 127 | fn edge(input: &str) -> IResult<&str, (Node<'_>, Node<'_>)> {
[INFO] [stderr]     |                                            ++++      ++++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]    --> src/day_12.rs:165:16
[INFO] [stderr]     |
[INFO] [stderr] 165 | fn node(input: &str) -> IResult<&str, Node> {
[INFO] [stderr]     |                ^^^^             ----  ---- the lifetimes get resolved as `'_`
[INFO] [stderr]     |                |                |
[INFO] [stderr]     |                |                the lifetimes get resolved as `'_`
[INFO] [stderr]     |                this lifetime flows to the output
[INFO] [stderr]     |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]     |
[INFO] [stderr] 165 | fn node(input: &str) -> IResult<&str, Node<'_>> {
[INFO] [stderr]     |                                           ++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/day_18.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 |             mem::replace(self, Self::Literal(0));
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 77 |             let _ = mem::replace(self, Self::Literal(0));
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/day_21.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     std::mem::replace(a, new_a);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let _ = std::mem::replace(a, new_a);
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `aoc-2021` (bin "aoc-2021" test) generated 23 warnings (run `cargo fix --bin "aoc-2021" --tests` to apply 10 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/aoc_2021-2d7e579cca057d58)
[INFO] [stdout] 
[INFO] [stdout] running 69 tests
[INFO] [stdout] test day_03::tests::not_flips_bits ... ok
[INFO] [stdout] test day_03::tests::number_is_parsed ... ok
[INFO] [stdout] test day_08::tests::unset_segment_becomes_set ... ok
[INFO] [stdout] test day_08::tests::digit_to_segment_is_correct ... ok
[INFO] [stdout] test day_11::tests::neighbors::c_correct ... ok
[INFO] [stdout] test day_03::tests::mask_is_correct ... ok
[INFO] [stdout] test day_04::tests::bingo_parses ... ok
[INFO] [stdout] test day_06::tests::step_works ... ok
[INFO] [stdout] test day_03::tests::bits_are_correct ... ok
[INFO] [stdout] test day_04::tests::score_is_correct ... ok
[INFO] [stdout] test day_11::tests::neighbors::d_correct ... ok
[INFO] [stdout] test day_11::tests::neighbors::dl_correct ... ok
[INFO] [stdout] test day_11::tests::neighbors::l_correct ... ok
[INFO] [stdout] test day_11::tests::neighbors::r_correct ... ok
[INFO] [stdout] test day_11::tests::neighbors::dr_correct ... ok
[INFO] [stdout] test day_11::tests::neighbors::u_correct ... ok
[INFO] [stdout] test day_11::tests::neighbors::ul_correct ... ok
[INFO] [stdout] test day_11::tests::neighbors::ur_correct ... ok
[INFO] [stdout] test day_12::tests::big_node_is_correct ... ok
[INFO] [stdout] test day_12::tests::end_node_is_correct ... ok
[INFO] [stdout] test day_12::tests::small_node_is_correct ... ok
[INFO] [stdout] test day_16::tests::slice_offset ... ok
[INFO] [stdout] test day_16::tests::zero_slice_offset ... ok
[INFO] [stdout] test day_18::tests::explodes_in_middle ... ok
[INFO] [stdout] test day_18::tests::explodes_right ... ok
[INFO] [stdout] test day_18::tests::sf_nums_add ... ok
[INFO] [stdout] test day_18::tests::explodes_left ... ok
[INFO] [stdout] test day_22::tests::adding_cube_volume_is_correct ... ok
[INFO] [stdout] test day_22::tests::center_intersects ... ok
[INFO] [stdout] test day_22::tests::center_overlap_is_covering_segment ... ok
[INFO] [stdout] test day_18::tests::sf_nums_sum ... ok
[INFO] [stdout] test day_22::tests::center_non_overlaps_are_correct ... ok
[INFO] [stdout] test day_16::tests::literal_parses ... ok
[INFO] [stdout] test day_16::tests::length_type_0_parses ... ok
[INFO] [stdout] test day_12::tests::start_node_is_correct ... ok
[INFO] [stdout] test day_16::tests::length_type_1_parses ... ok
[INFO] [stdout] test day_16::tests::hex_string_parses ... ok
[INFO] [stdout] test day_16::tests::less_than_byte_num_parses ... ok
[INFO] [stdout] test day_22::tests::cube_non_overlap_volume_is_correct ... ok
[INFO] [stdout] test day_22::tests::cube_overlap_is_correct ... ok
[INFO] [stdout] test day_22::tests::cube_volume_is_correct ... ok
[INFO] [stdout] test day_22::tests::cubes_intersect ... ok
[INFO] [stdout] test day_22::tests::disjoint_cubes_have_no_overlap ... ok
[INFO] [stdout] test day_22::tests::entire_has_no_non_overlaps ... ok
[INFO] [stdout] test day_22::tests::entire_intersects ... ok
[INFO] [stdout] test day_22::tests::exact_has_correct_overlap ... ok
[INFO] [stdout] test day_22::tests::exact_has_no_non_overlaps ... ok
[INFO] [stdout] test day_22::tests::entire_overlap_is_full_segment ... ok
[INFO] [stdout] test day_22::tests::center_parts_are_correct ... ok
[INFO] [stdout] test day_22::tests::exact_right_intersects ... ok
[INFO] [stdout] test day_22::tests::exact_right_non_overlaps_are_correct ... ok
[INFO] [stdout] test day_22::tests::exact_left_intersects ... ok
[INFO] [stdout] test day_22::tests::exact_left_has_correct_overlap ... ok
[INFO] [stdout] test day_22::tests::far_right_has_no_overlap ... ok
[INFO] [stdout] test day_22::tests::far_right_non_overlaps_are_correct ... ok
[INFO] [stdout] test day_22::tests::exact_left_non_overlaps_are_correct ... ok
[INFO] [stdout] test day_22::tests::left_has_correct_overlap ... ok
[INFO] [stdout] test day_22::tests::exact_right_has_correct_overlap ... ok
[INFO] [stdout] test day_22::tests::left_intersects ... ok
[INFO] [stdout] test day_22::tests::left_non_overlaps_are_correct ... ok
[INFO] [stdout] test day_22::tests::exact_intersects ... ok
[INFO] [stdout] test day_22::tests::far_left_has_no_overlap ... ok
[INFO] [stdout] test day_22::tests::far_left_doesnt_intersect ... ok
[INFO] [stdout] test day_22::tests::far_left_non_overlaps_are_correct ... ok
[INFO] [stdout] test day_22::tests::far_right_doesnt_intersect ... ok
[INFO] [stdout] test day_22::tests::right_intersects ... ok
[INFO] [stdout] test day_22::tests::single_value_segment_works ... ok
[INFO] [stdout] test day_22::tests::right_has_correct_overlap ... ok
[INFO] [stdout] test day_22::tests::right_non_overlaps_are_correct ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 69 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1df45292b7977af13e5f48ba4fc742b3375cda71a853e06826907b4674c28030", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1df45292b7977af13e5f48ba4fc742b3375cda71a853e06826907b4674c28030", kill_on_drop: false }`
[INFO] [stdout] 1df45292b7977af13e5f48ba4fc742b3375cda71a853e06826907b4674c28030
