[INFO] cloning repository https://github.com/Gricha/AdventOfCode2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Gricha/AdventOfCode2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGricha%2FAdventOfCode2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGricha%2FAdventOfCode2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ffc033a54e7950275db73b2afd2a88182144c5d6
[INFO] checking Gricha/AdventOfCode2021 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%2FGricha%2FAdventOfCode2021" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Gricha/AdventOfCode2021
[INFO] finished tweaking git repo https://github.com/Gricha/AdventOfCode2021
[INFO] tweaked toml for git repo https://github.com/Gricha/AdventOfCode2021 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Gricha/AdventOfCode2021 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/Gricha/AdventOfCode2021 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 8e3cebb2d63a9b5a1104a168bf0e3bed31a5c3f34a14efb56245159041f30708
[INFO] running `Command { std: "docker" "start" "-a" "8e3cebb2d63a9b5a1104a168bf0e3bed31a5c3f34a14efb56245159041f30708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e3cebb2d63a9b5a1104a168bf0e3bed31a5c3f34a14efb56245159041f30708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e3cebb2d63a9b5a1104a168bf0e3bed31a5c3f34a14efb56245159041f30708", kill_on_drop: false }`
[INFO] [stdout] 8e3cebb2d63a9b5a1104a168bf0e3bed31a5c3f34a14efb56245159041f30708
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 49335c555aad57166d8b036289fe2a4c4c4e8c67149ea6fb94de913bfcec4d29
[INFO] running `Command { std: "docker" "start" "-a" "49335c555aad57166d8b036289fe2a4c4c4e8c67149ea6fb94de913bfcec4d29", kill_on_drop: false }`
[INFO] [stderr]     Checking scan_fmt v0.2.6
[INFO] [stderr]     Checking advent v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/day11.rs:10:26
[INFO] [stdout]    |
[INFO] [stdout] 10 |                 .map(|x| (x as i32 - '0' as i32))
[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] 10 -                 .map(|x| (x as i32 - '0' as i32))
[INFO] [stdout] 10 +                 .map(|x| x as i32 - '0' as i32 )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/day11.rs:10:26
[INFO] [stdout]    |
[INFO] [stdout] 10 |                 .map(|x| (x as i32 - '0' as i32))
[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] 10 -                 .map(|x| (x as i32 - '0' as i32))
[INFO] [stdout] 10 +                 .map(|x| x as i32 - '0' as i32 )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/day18.rs:69:17
[INFO] [stdout]    |
[INFO] [stdout] 69 | /                 std::mem::replace(
[INFO] [stdout] 70 | |                     number,
[INFO] [stdout] 71 | |                     Number::Nested(Box::new(InnerNumber {
[INFO] [stdout] 72 | |                         left: Box::new(Number::Literal(left)),
[INFO] [stdout] 73 | |                         right: Box::new(Number::Literal(right)),
[INFO] [stdout] 74 | |                     })),
[INFO] [stdout] 75 | |                 );
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 69 |                 let _ = std::mem::replace(
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/day18.rs:109:17
[INFO] [stdout]     |
[INFO] [stdout] 109 |                 std::mem::replace(number, Number::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] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 109 |                 let _ = std::mem::replace(number, Number::Literal(0));
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day22.rs:9:48
[INFO] [stdout]    |
[INFO] [stdout]  9 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]    |  ________________________________________________^
[INFO] [stdout] 10 | |                 &x,
[INFO] [stdout] 11 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 12 | |                 String,
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |                 i32
[INFO] [stdout] 19 | |             )
[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 `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day22.rs:9:48
[INFO] [stdout]    |
[INFO] [stdout]  9 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]    |  ________________________________________________^
[INFO] [stdout] 10 | |                 &x,
[INFO] [stdout] 11 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 12 | |                 String,
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |                 i32
[INFO] [stdout] 19 | |             )
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$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/day22.rs:9:48
[INFO] [stdout]    |
[INFO] [stdout]  9 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]    |  ________________________________________________^
[INFO] [stdout] 10 | |                 &x,
[INFO] [stdout] 11 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 12 | |                 String,
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |                 i32
[INFO] [stdout] 19 | |             )
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day22.rs:9:48
[INFO] [stdout]    |
[INFO] [stdout]  9 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]    |  ________________________________________________^
[INFO] [stdout] 10 | |                 &x,
[INFO] [stdout] 11 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 12 | |                 String,
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |                 i32
[INFO] [stdout] 19 | |             )
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$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/day22.rs:9:48
[INFO] [stdout]    |
[INFO] [stdout]  9 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]    |  ________________________________________________^
[INFO] [stdout] 10 | |                 &x,
[INFO] [stdout] 11 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 12 | |                 String,
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |                 i32
[INFO] [stdout] 19 | |             )
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day22.rs:9:48
[INFO] [stdout]    |
[INFO] [stdout]  9 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]    |  ________________________________________________^
[INFO] [stdout] 10 | |                 &x,
[INFO] [stdout] 11 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 12 | |                 String,
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |                 i32
[INFO] [stdout] 19 | |             )
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$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/day22.rs:9:48
[INFO] [stdout]    |
[INFO] [stdout]  9 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]    |  ________________________________________________^
[INFO] [stdout] 10 | |                 &x,
[INFO] [stdout] 11 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 12 | |                 String,
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |                 i32
[INFO] [stdout] 19 | |             )
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day22.rs:9:48
[INFO] [stdout]    |
[INFO] [stdout]  9 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]    |  ________________________________________________^
[INFO] [stdout] 10 | |                 &x,
[INFO] [stdout] 11 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 12 | |                 String,
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |                 i32
[INFO] [stdout] 19 | |             )
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$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/day22.rs:153:48
[INFO] [stdout]     |
[INFO] [stdout] 153 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]     |  ________________________________________________^
[INFO] [stdout] 154 | |                 &x,
[INFO] [stdout] 155 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 156 | |                 String,
[INFO] [stdout] ...   |
[INFO] [stdout] 162 | |                 i32
[INFO] [stdout] 163 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/day22.rs:153:48
[INFO] [stdout]     |
[INFO] [stdout] 153 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]     |  ________________________________________________^
[INFO] [stdout] 154 | |                 &x,
[INFO] [stdout] 155 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 156 | |                 String,
[INFO] [stdout] ...   |
[INFO] [stdout] 162 | |                 i32
[INFO] [stdout] 163 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$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/day22.rs:153:48
[INFO] [stdout]     |
[INFO] [stdout] 153 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]     |  ________________________________________________^
[INFO] [stdout] 154 | |                 &x,
[INFO] [stdout] 155 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 156 | |                 String,
[INFO] [stdout] ...   |
[INFO] [stdout] 162 | |                 i32
[INFO] [stdout] 163 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/day22.rs:153:48
[INFO] [stdout]     |
[INFO] [stdout] 153 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]     |  ________________________________________________^
[INFO] [stdout] 154 | |                 &x,
[INFO] [stdout] 155 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 156 | |                 String,
[INFO] [stdout] ...   |
[INFO] [stdout] 162 | |                 i32
[INFO] [stdout] 163 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$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/day22.rs:153:48
[INFO] [stdout]     |
[INFO] [stdout] 153 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]     |  ________________________________________________^
[INFO] [stdout] 154 | |                 &x,
[INFO] [stdout] 155 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 156 | |                 String,
[INFO] [stdout] ...   |
[INFO] [stdout] 162 | |                 i32
[INFO] [stdout] 163 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/day22.rs:153:48
[INFO] [stdout]     |
[INFO] [stdout] 153 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]     |  ________________________________________________^
[INFO] [stdout] 154 | |                 &x,
[INFO] [stdout] 155 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 156 | |                 String,
[INFO] [stdout] ...   |
[INFO] [stdout] 162 | |                 i32
[INFO] [stdout] 163 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$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/day22.rs:153:48
[INFO] [stdout]     |
[INFO] [stdout] 153 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]     |  ________________________________________________^
[INFO] [stdout] 154 | |                 &x,
[INFO] [stdout] 155 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 156 | |                 String,
[INFO] [stdout] ...   |
[INFO] [stdout] 162 | |                 i32
[INFO] [stdout] 163 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/day22.rs:153:48
[INFO] [stdout]     |
[INFO] [stdout] 153 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]     |  ________________________________________________^
[INFO] [stdout] 154 | |                 &x,
[INFO] [stdout] 155 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 156 | |                 String,
[INFO] [stdout] ...   |
[INFO] [stdout] 162 | |                 i32
[INFO] [stdout] 163 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$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 `advent` (bin "advent" test) due to 16 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/day18.rs:69:17
[INFO] [stdout]    |
[INFO] [stdout] 69 | /                 std::mem::replace(
[INFO] [stdout] 70 | |                     number,
[INFO] [stdout] 71 | |                     Number::Nested(Box::new(InnerNumber {
[INFO] [stdout] 72 | |                         left: Box::new(Number::Literal(left)),
[INFO] [stdout] 73 | |                         right: Box::new(Number::Literal(right)),
[INFO] [stdout] 74 | |                     })),
[INFO] [stdout] 75 | |                 );
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 69 |                 let _ = std::mem::replace(
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/day18.rs:109:17
[INFO] [stdout]     |
[INFO] [stdout] 109 |                 std::mem::replace(number, Number::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] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 109 |                 let _ = std::mem::replace(number, Number::Literal(0));
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day22.rs:9:48
[INFO] [stdout]    |
[INFO] [stdout]  9 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]    |  ________________________________________________^
[INFO] [stdout] 10 | |                 &x,
[INFO] [stdout] 11 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 12 | |                 String,
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |                 i32
[INFO] [stdout] 19 | |             )
[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 `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day22.rs:9:48
[INFO] [stdout]    |
[INFO] [stdout]  9 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]    |  ________________________________________________^
[INFO] [stdout] 10 | |                 &x,
[INFO] [stdout] 11 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 12 | |                 String,
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |                 i32
[INFO] [stdout] 19 | |             )
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$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/day22.rs:9:48
[INFO] [stdout]    |
[INFO] [stdout]  9 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]    |  ________________________________________________^
[INFO] [stdout] 10 | |                 &x,
[INFO] [stdout] 11 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 12 | |                 String,
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |                 i32
[INFO] [stdout] 19 | |             )
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day22.rs:9:48
[INFO] [stdout]    |
[INFO] [stdout]  9 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]    |  ________________________________________________^
[INFO] [stdout] 10 | |                 &x,
[INFO] [stdout] 11 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 12 | |                 String,
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |                 i32
[INFO] [stdout] 19 | |             )
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$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/day22.rs:9:48
[INFO] [stdout]    |
[INFO] [stdout]  9 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]    |  ________________________________________________^
[INFO] [stdout] 10 | |                 &x,
[INFO] [stdout] 11 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 12 | |                 String,
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |                 i32
[INFO] [stdout] 19 | |             )
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day22.rs:9:48
[INFO] [stdout]    |
[INFO] [stdout]  9 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]    |  ________________________________________________^
[INFO] [stdout] 10 | |                 &x,
[INFO] [stdout] 11 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 12 | |                 String,
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |                 i32
[INFO] [stdout] 19 | |             )
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$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/day22.rs:9:48
[INFO] [stdout]    |
[INFO] [stdout]  9 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]    |  ________________________________________________^
[INFO] [stdout] 10 | |                 &x,
[INFO] [stdout] 11 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 12 | |                 String,
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |                 i32
[INFO] [stdout] 19 | |             )
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/day22.rs:9:48
[INFO] [stdout]    |
[INFO] [stdout]  9 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]    |  ________________________________________________^
[INFO] [stdout] 10 | |                 &x,
[INFO] [stdout] 11 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 12 | |                 String,
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |                 i32
[INFO] [stdout] 19 | |             )
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$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/day22.rs:153:48
[INFO] [stdout]     |
[INFO] [stdout] 153 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]     |  ________________________________________________^
[INFO] [stdout] 154 | |                 &x,
[INFO] [stdout] 155 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 156 | |                 String,
[INFO] [stdout] ...   |
[INFO] [stdout] 162 | |                 i32
[INFO] [stdout] 163 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/day22.rs:153:48
[INFO] [stdout]     |
[INFO] [stdout] 153 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]     |  ________________________________________________^
[INFO] [stdout] 154 | |                 &x,
[INFO] [stdout] 155 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 156 | |                 String,
[INFO] [stdout] ...   |
[INFO] [stdout] 162 | |                 i32
[INFO] [stdout] 163 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$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/day22.rs:153:48
[INFO] [stdout]     |
[INFO] [stdout] 153 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]     |  ________________________________________________^
[INFO] [stdout] 154 | |                 &x,
[INFO] [stdout] 155 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 156 | |                 String,
[INFO] [stdout] ...   |
[INFO] [stdout] 162 | |                 i32
[INFO] [stdout] 163 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/day22.rs:153:48
[INFO] [stdout]     |
[INFO] [stdout] 153 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]     |  ________________________________________________^
[INFO] [stdout] 154 | |                 &x,
[INFO] [stdout] 155 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 156 | |                 String,
[INFO] [stdout] ...   |
[INFO] [stdout] 162 | |                 i32
[INFO] [stdout] 163 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$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/day22.rs:153:48
[INFO] [stdout]     |
[INFO] [stdout] 153 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]     |  ________________________________________________^
[INFO] [stdout] 154 | |                 &x,
[INFO] [stdout] 155 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 156 | |                 String,
[INFO] [stdout] ...   |
[INFO] [stdout] 162 | |                 i32
[INFO] [stdout] 163 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/day22.rs:153:48
[INFO] [stdout]     |
[INFO] [stdout] 153 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]     |  ________________________________________________^
[INFO] [stdout] 154 | |                 &x,
[INFO] [stdout] 155 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 156 | |                 String,
[INFO] [stdout] ...   |
[INFO] [stdout] 162 | |                 i32
[INFO] [stdout] 163 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$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/day22.rs:153:48
[INFO] [stdout]     |
[INFO] [stdout] 153 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]     |  ________________________________________________^
[INFO] [stdout] 154 | |                 &x,
[INFO] [stdout] 155 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 156 | |                 String,
[INFO] [stdout] ...   |
[INFO] [stdout] 162 | |                 i32
[INFO] [stdout] 163 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::scan_fmt_help` which comes from the expansion of the macro `scan_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/day22.rs:153:48
[INFO] [stdout]     |
[INFO] [stdout] 153 |               let (op, x1, x2, y1, y2, z1, z2) = scan_fmt!(
[INFO] [stdout]     |  ________________________________________________^
[INFO] [stdout] 154 | |                 &x,
[INFO] [stdout] 155 | |                 "{} x={}..{},y={}..{},z={}..{}",
[INFO] [stdout] 156 | |                 String,
[INFO] [stdout] ...   |
[INFO] [stdout] 162 | |                 i32
[INFO] [stdout] 163 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$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 `advent` (bin "advent") due to 16 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "49335c555aad57166d8b036289fe2a4c4c4e8c67149ea6fb94de913bfcec4d29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49335c555aad57166d8b036289fe2a4c4c4e8c67149ea6fb94de913bfcec4d29", kill_on_drop: false }`
[INFO] [stdout] 49335c555aad57166d8b036289fe2a4c4c4e8c67149ea6fb94de913bfcec4d29