[INFO] cloning repository https://github.com/ddrcoder/aoc2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ddrcoder/aoc2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fddrcoder%2Faoc2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fddrcoder%2Faoc2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 92e30a4c0b56f019a7761a06abf80d48afa0f6cd
[INFO] checking ddrcoder/aoc2021 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fddrcoder%2Faoc2021" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ddrcoder/aoc2021
[INFO] finished tweaking git repo https://github.com/ddrcoder/aoc2021
[INFO] tweaked toml for git repo https://github.com/ddrcoder/aoc2021 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ddrcoder/aoc2021 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ddrcoder/aoc2021 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e96b94937acf8cd4e3e53e28093363cbb2e3b3fcf5af58a37fc2635a14a759fc
[INFO] running `Command { std: "docker" "start" "-a" "e96b94937acf8cd4e3e53e28093363cbb2e3b3fcf5af58a37fc2635a14a759fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e96b94937acf8cd4e3e53e28093363cbb2e3b3fcf5af58a37fc2635a14a759fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e96b94937acf8cd4e3e53e28093363cbb2e3b3fcf5af58a37fc2635a14a759fc", kill_on_drop: false }`
[INFO] [stdout] e96b94937acf8cd4e3e53e28093363cbb2e3b3fcf5af58a37fc2635a14a759fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b6addc0dbbb39a660f9619ff5474428a960976b80f922195b4472af7778c2aa
[INFO] running `Command { std: "docker" "start" "-a" "1b6addc0dbbb39a660f9619ff5474428a960976b80f922195b4472af7778c2aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking stride v0.2.0
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking os_str_bytes v4.2.0
[INFO] [stderr]     Checking scan_fmt v0.2.6
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking ndarray v0.15.4
[INFO] [stderr]    Compiling vectrix-macro v0.2.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.5
[INFO] [stderr]     Checking vectrix v0.2.0
[INFO] [stderr]     Checking clap v3.0.0-beta.5
[INFO] [stderr]     Checking aoc2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Ordering`
[INFO] [stdout]   --> src/main.rs:11:26
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::cmp::{max, min, Ordering};
[INFO] [stdout]    |                          ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `collections::VecDeque`
[INFO] [stdout]   --> src/main.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::{collections::VecDeque, fmt::Debug};
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ndarray::Array`
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use ndarray::Array;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Captures` and `Regex`
[INFO] [stdout]   --> src/main.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 | use regex::{Captures, Regex};
[INFO] [stdout]    |             ^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/main.rs:315:45
[INFO] [stdout]     |
[INFO] [stdout] 315 | ...                   .fold(0, |n, b| (n | b))
[INFO] [stdout]     |                                       ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 315 -                             .fold(0, |n, b| (n | b))
[INFO] [stdout] 315 +                             .fold(0, |n, b| n | b)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/main.rs:407:43
[INFO] [stdout]     |
[INFO] [stdout] 407 |         .map(|line| line.chars().map(|ch| (ch as u8 - '0' as u8)).collect())
[INFO] [stdout]     |                                           ^                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 407 -         .map(|line| line.chars().map(|ch| (ch as u8 - '0' as u8)).collect())
[INFO] [stdout] 407 +         .map(|line| line.chars().map(|ch| ch as u8 - '0' as u8).collect())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/main.rs:476:43
[INFO] [stdout]     |
[INFO] [stdout] 476 |         .map(|line| line.chars().map(|ch| (ch as u8 - '0' as u8)).collect())
[INFO] [stdout]     |                                           ^                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 476 -         .map(|line| line.chars().map(|ch| (ch as u8 - '0' as u8)).collect())
[INFO] [stdout] 476 +         .map(|line| line.chars().map(|ch| ch as u8 - '0' as u8).collect())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Ordering`
[INFO] [stdout]   --> src/main.rs:11:26
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::cmp::{max, min, Ordering};
[INFO] [stdout]    |                          ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `collections::VecDeque`
[INFO] [stdout]   --> src/main.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::{collections::VecDeque, fmt::Debug};
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ndarray::Array`
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use ndarray::Array;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Captures` and `Regex`
[INFO] [stdout]   --> src/main.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 | use regex::{Captures, Regex};
[INFO] [stdout]    |             ^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/main.rs:315:45
[INFO] [stdout]     |
[INFO] [stdout] 315 | ...                   .fold(0, |n, b| (n | b))
[INFO] [stdout]     |                                       ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 315 -                             .fold(0, |n, b| (n | b))
[INFO] [stdout] 315 +                             .fold(0, |n, b| n | b)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/main.rs:407:43
[INFO] [stdout]     |
[INFO] [stdout] 407 |         .map(|line| line.chars().map(|ch| (ch as u8 - '0' as u8)).collect())
[INFO] [stdout]     |                                           ^                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 407 -         .map(|line| line.chars().map(|ch| (ch as u8 - '0' as u8)).collect())
[INFO] [stdout] 407 +         .map(|line| line.chars().map(|ch| ch as u8 - '0' as u8).collect())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/main.rs:476:43
[INFO] [stdout]     |
[INFO] [stdout] 476 |         .map(|line| line.chars().map(|ch| (ch as u8 - '0' as u8)).collect())
[INFO] [stdout]     |                                           ^                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 476 -         .map(|line| line.chars().map(|ch| (ch as u8 - '0' as u8)).collect())
[INFO] [stdout] 476 +         .map(|line| line.chars().map(|ch| ch as u8 - '0' as u8).collect())
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/main.rs:272:17
[INFO] [stdout]     |
[INFO] [stdout] 272 |             for s in 0..d {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `version`
[INFO] [stdout]    --> src/main.rs:737:13
[INFO] [stdout]     |
[INFO] [stdout] 737 |         let version = read(i, bits, 3);
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> src/main.rs:769:22
[INFO] [stdout]     |
[INFO] [stdout] 769 |                 let (op, r) = match a {
[INFO] [stdout]     |                      ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]     --> src/main.rs:1501:25
[INFO] [stdout]      |
[INFO] [stdout] 1501 |         while let Some((i, cost)) = (0..self.pods.len())
[INFO] [stdout]      |                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cost`
[INFO] [stdout]     --> src/main.rs:1501:28
[INFO] [stdout]      |
[INFO] [stdout] 1501 |         while let Some((i, cost)) = (0..self.pods.len())
[INFO] [stdout]      |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_cost`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/main.rs:272:17
[INFO] [stdout]     |
[INFO] [stdout] 272 |             for s in 0..d {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]     --> src/main.rs:1482:29
[INFO] [stdout]      |
[INFO] [stdout] 1482 |                 if let Some(j) = caves.grid[p] {
[INFO] [stdout]      |                             ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `groups`
[INFO] [stdout]     --> src/main.rs:1541:26
[INFO] [stdout]      |
[INFO] [stdout] 1541 | fn day23(lines: &[&str], groups: &[&[&str]], gold: bool) -> usize {
[INFO] [stdout]      |                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_groups`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ip`
[INFO] [stdout]     --> src/main.rs:1623:14
[INFO] [stdout]      |
[INFO] [stdout] 1623 |         for (ip, code) in program.iter().enumerate() {
[INFO] [stdout]      |              ^^ help: if this is intentional, prefix it with an underscore: `_ip`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `n` is never read
[INFO] [stdout]     --> src/main.rs:1022:5
[INFO] [stdout]      |
[INFO] [stdout] 1019 | struct Scanner {
[INFO] [stdout]      |        ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 1022 |     n: usize,
[INFO] [stdout]      |     ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `Scanner` has a derived impl for the trait `Clone`, 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] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |         .flat_map(|s| scan_fmt!(s, "{} {}", String, usize).ok().into_iter());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |         .flat_map(|s| scan_fmt!(s, "{} {}", String, usize).ok().into_iter());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |         .flat_map(|s| scan_fmt!(s, "{} {}", String, usize).ok().into_iter());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |         .flat_map(|s| scan_fmt!(s, "{} {}", String, usize).ok().into_iter());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |         .flat_map(|s| scan_fmt!(s, "{} {}", String, usize).ok().into_iter());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |         .flat_map(|s| scan_fmt!(s, "{} {}", String, usize).ok().into_iter());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |         .flat_map(|s| scan_fmt!(s, "{} {}", String, usize).ok().into_iter());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |         .flat_map(|s| scan_fmt!(s, "{} {}", String, usize).ok().into_iter());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `version`
[INFO] [stdout]    --> src/main.rs:737:13
[INFO] [stdout]     |
[INFO] [stdout] 737 |         let version = read(i, bits, 3);
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> src/main.rs:769:22
[INFO] [stdout]     |
[INFO] [stdout] 769 |                 let (op, r) = match a {
[INFO] [stdout]     |                      ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]     --> src/main.rs:1296:13
[INFO] [stdout]      |
[INFO] [stdout] 1296 | /             scan_fmt!(
[INFO] [stdout] 1297 | |                 line,
[INFO] [stdout] 1298 | |                 "{/on|off/} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 1299 | |                 String,
[INFO] [stdout] ...    |
[INFO] [stdout] 1305 | |                 i64
[INFO] [stdout] 1306 | |             )
[INFO] [stdout]      | |_____________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]     --> src/main.rs:1296:13
[INFO] [stdout]      |
[INFO] [stdout] 1296 | /             scan_fmt!(
[INFO] [stdout] 1297 | |                 line,
[INFO] [stdout] 1298 | |                 "{/on|off/} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 1299 | |                 String,
[INFO] [stdout] ...    |
[INFO] [stdout] 1305 | |                 i64
[INFO] [stdout] 1306 | |             )
[INFO] [stdout]      | |_____________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]     --> src/main.rs:1296:13
[INFO] [stdout]      |
[INFO] [stdout] 1296 | /             scan_fmt!(
[INFO] [stdout] 1297 | |                 line,
[INFO] [stdout] 1298 | |                 "{/on|off/} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 1299 | |                 String,
[INFO] [stdout] ...    |
[INFO] [stdout] 1305 | |                 i64
[INFO] [stdout] 1306 | |             )
[INFO] [stdout]      | |_____________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]     --> src/main.rs:1296:13
[INFO] [stdout]      |
[INFO] [stdout] 1296 | /             scan_fmt!(
[INFO] [stdout] 1297 | |                 line,
[INFO] [stdout] 1298 | |                 "{/on|off/} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 1299 | |                 String,
[INFO] [stdout] ...    |
[INFO] [stdout] 1305 | |                 i64
[INFO] [stdout] 1306 | |             )
[INFO] [stdout]      | |_____________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]     --> src/main.rs:1296:13
[INFO] [stdout]      |
[INFO] [stdout] 1296 | /             scan_fmt!(
[INFO] [stdout] 1297 | |                 line,
[INFO] [stdout] 1298 | |                 "{/on|off/} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 1299 | |                 String,
[INFO] [stdout] ...    |
[INFO] [stdout] 1305 | |                 i64
[INFO] [stdout] 1306 | |             )
[INFO] [stdout]      | |_____________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]     --> src/main.rs:1296:13
[INFO] [stdout]      |
[INFO] [stdout] 1296 | /             scan_fmt!(
[INFO] [stdout] 1297 | |                 line,
[INFO] [stdout] 1298 | |                 "{/on|off/} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 1299 | |                 String,
[INFO] [stdout] ...    |
[INFO] [stdout] 1305 | |                 i64
[INFO] [stdout] 1306 | |             )
[INFO] [stdout]      | |_____________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]     --> src/main.rs:1296:13
[INFO] [stdout]      |
[INFO] [stdout] 1296 | /             scan_fmt!(
[INFO] [stdout] 1297 | |                 line,
[INFO] [stdout] 1298 | |                 "{/on|off/} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 1299 | |                 String,
[INFO] [stdout] ...    |
[INFO] [stdout] 1305 | |                 i64
[INFO] [stdout] 1306 | |             )
[INFO] [stdout]      | |_____________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]     --> src/main.rs:1296:13
[INFO] [stdout]      |
[INFO] [stdout] 1296 | /             scan_fmt!(
[INFO] [stdout] 1297 | |                 line,
[INFO] [stdout] 1298 | |                 "{/on|off/} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 1299 | |                 String,
[INFO] [stdout] ...    |
[INFO] [stdout] 1305 | |                 i64
[INFO] [stdout] 1306 | |             )
[INFO] [stdout]      | |_____________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aoc2021` (bin "aoc2021" test) due to 16 previous errors; 16 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]     --> src/main.rs:1501:25
[INFO] [stdout]      |
[INFO] [stdout] 1501 |         while let Some((i, cost)) = (0..self.pods.len())
[INFO] [stdout]      |                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cost`
[INFO] [stdout]     --> src/main.rs:1501:28
[INFO] [stdout]      |
[INFO] [stdout] 1501 |         while let Some((i, cost)) = (0..self.pods.len())
[INFO] [stdout]      |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_cost`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]     --> src/main.rs:1482:29
[INFO] [stdout]      |
[INFO] [stdout] 1482 |                 if let Some(j) = caves.grid[p] {
[INFO] [stdout]      |                             ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `groups`
[INFO] [stdout]     --> src/main.rs:1541:26
[INFO] [stdout]      |
[INFO] [stdout] 1541 | fn day23(lines: &[&str], groups: &[&[&str]], gold: bool) -> usize {
[INFO] [stdout]      |                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_groups`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ip`
[INFO] [stdout]     --> src/main.rs:1623:14
[INFO] [stdout]      |
[INFO] [stdout] 1623 |         for (ip, code) in program.iter().enumerate() {
[INFO] [stdout]      |              ^^ help: if this is intentional, prefix it with an underscore: `_ip`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `n` is never read
[INFO] [stdout]     --> src/main.rs:1022:5
[INFO] [stdout]      |
[INFO] [stdout] 1019 | struct Scanner {
[INFO] [stdout]      |        ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 1022 |     n: usize,
[INFO] [stdout]      |     ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `Scanner` has a derived impl for the trait `Clone`, 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] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |         .flat_map(|s| scan_fmt!(s, "{} {}", String, usize).ok().into_iter());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |         .flat_map(|s| scan_fmt!(s, "{} {}", String, usize).ok().into_iter());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |         .flat_map(|s| scan_fmt!(s, "{} {}", String, usize).ok().into_iter());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |         .flat_map(|s| scan_fmt!(s, "{} {}", String, usize).ok().into_iter());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |         .flat_map(|s| scan_fmt!(s, "{} {}", String, usize).ok().into_iter());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |         .flat_map(|s| scan_fmt!(s, "{} {}", String, usize).ok().into_iter());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |         .flat_map(|s| scan_fmt!(s, "{} {}", String, usize).ok().into_iter());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:42:23
[INFO] [stdout]    |
[INFO] [stdout] 42 |         .flat_map(|s| scan_fmt!(s, "{} {}", String, usize).ok().into_iter());
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]     --> src/main.rs:1296:13
[INFO] [stdout]      |
[INFO] [stdout] 1296 | /             scan_fmt!(
[INFO] [stdout] 1297 | |                 line,
[INFO] [stdout] 1298 | |                 "{/on|off/} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 1299 | |                 String,
[INFO] [stdout] ...    |
[INFO] [stdout] 1305 | |                 i64
[INFO] [stdout] 1306 | |             )
[INFO] [stdout]      | |_____________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]     --> src/main.rs:1296:13
[INFO] [stdout]      |
[INFO] [stdout] 1296 | /             scan_fmt!(
[INFO] [stdout] 1297 | |                 line,
[INFO] [stdout] 1298 | |                 "{/on|off/} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 1299 | |                 String,
[INFO] [stdout] ...    |
[INFO] [stdout] 1305 | |                 i64
[INFO] [stdout] 1306 | |             )
[INFO] [stdout]      | |_____________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]     --> src/main.rs:1296:13
[INFO] [stdout]      |
[INFO] [stdout] 1296 | /             scan_fmt!(
[INFO] [stdout] 1297 | |                 line,
[INFO] [stdout] 1298 | |                 "{/on|off/} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 1299 | |                 String,
[INFO] [stdout] ...    |
[INFO] [stdout] 1305 | |                 i64
[INFO] [stdout] 1306 | |             )
[INFO] [stdout]      | |_____________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]     --> src/main.rs:1296:13
[INFO] [stdout]      |
[INFO] [stdout] 1296 | /             scan_fmt!(
[INFO] [stdout] 1297 | |                 line,
[INFO] [stdout] 1298 | |                 "{/on|off/} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 1299 | |                 String,
[INFO] [stdout] ...    |
[INFO] [stdout] 1305 | |                 i64
[INFO] [stdout] 1306 | |             )
[INFO] [stdout]      | |_____________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]     --> src/main.rs:1296:13
[INFO] [stdout]      |
[INFO] [stdout] 1296 | /             scan_fmt!(
[INFO] [stdout] 1297 | |                 line,
[INFO] [stdout] 1298 | |                 "{/on|off/} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 1299 | |                 String,
[INFO] [stdout] ...    |
[INFO] [stdout] 1305 | |                 i64
[INFO] [stdout] 1306 | |             )
[INFO] [stdout]      | |_____________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]     --> src/main.rs:1296:13
[INFO] [stdout]      |
[INFO] [stdout] 1296 | /             scan_fmt!(
[INFO] [stdout] 1297 | |                 line,
[INFO] [stdout] 1298 | |                 "{/on|off/} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 1299 | |                 String,
[INFO] [stdout] ...    |
[INFO] [stdout] 1305 | |                 i64
[INFO] [stdout] 1306 | |             )
[INFO] [stdout]      | |_____________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]     --> src/main.rs:1296:13
[INFO] [stdout]      |
[INFO] [stdout] 1296 | /             scan_fmt!(
[INFO] [stdout] 1297 | |                 line,
[INFO] [stdout] 1298 | |                 "{/on|off/} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 1299 | |                 String,
[INFO] [stdout] ...    |
[INFO] [stdout] 1305 | |                 i64
[INFO] [stdout] 1306 | |             )
[INFO] [stdout]      | |_____________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]     --> src/main.rs:1296:13
[INFO] [stdout]      |
[INFO] [stdout] 1296 | /             scan_fmt!(
[INFO] [stdout] 1297 | |                 line,
[INFO] [stdout] 1298 | |                 "{/on|off/} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 1299 | |                 String,
[INFO] [stdout] ...    |
[INFO] [stdout] 1305 | |                 i64
[INFO] [stdout] 1306 | |             )
[INFO] [stdout]      | |_____________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aoc2021` (bin "aoc2021") due to 16 previous errors; 16 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "1b6addc0dbbb39a660f9619ff5474428a960976b80f922195b4472af7778c2aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b6addc0dbbb39a660f9619ff5474428a960976b80f922195b4472af7778c2aa", kill_on_drop: false }`
[INFO] [stdout] 1b6addc0dbbb39a660f9619ff5474428a960976b80f922195b4472af7778c2aa
