[INFO] cloning repository https://github.com/kanales/aoc19-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kanales/aoc19-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkanales%2Faoc19-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkanales%2Faoc19-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44df8582086a5af0ff269cf76330070f6388598d
[INFO] checking kanales/aoc19-rust against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkanales%2Faoc19-rust" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kanales/aoc19-rust on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kanales/aoc19-rust
[INFO] finished tweaking git repo https://github.com/kanales/aoc19-rust
[INFO] tweaked toml for git repo https://github.com/kanales/aoc19-rust written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kanales/aoc19-rust 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itertools v0.8.2
[INFO] [stderr]   Downloaded either v1.5.3
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75875b047a4e384046d70d674c33139281d1a29384a1a0a910382eb97626022b
[INFO] running `Command { std: "docker" "start" "-a" "75875b047a4e384046d70d674c33139281d1a29384a1a0a910382eb97626022b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75875b047a4e384046d70d674c33139281d1a29384a1a0a910382eb97626022b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75875b047a4e384046d70d674c33139281d1a29384a1a0a910382eb97626022b", kill_on_drop: false }`
[INFO] [stdout] 75875b047a4e384046d70d674c33139281d1a29384a1a0a910382eb97626022b
[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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14f6f9a07e0d58828d692e6c922bad3287768f4a70f640b37d8e1d4d2ea50560
[INFO] running `Command { std: "docker" "start" "-a" "14f6f9a07e0d58828d692e6c922bad3287768f4a70f640b37d8e1d4d2ea50560", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking aoc19 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `day` and `part` are never read
[INFO] [stdout]   --> src/solutions/mod.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct DayParseError {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 29 |     day: i32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 30 |     part: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DayParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `number` is never read
[INFO] [stdout]   --> src/solutions/day8.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub struct Layer<'a> {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 96 |     number: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Layer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/intcode/mod.rs:242:25
[INFO] [stdout]     |
[INFO] [stdout] 242 |             _ => panic!(format!("Trying to feed {:?}", self.status)),
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 242 -             _ => panic!(format!("Trying to feed {:?}", self.status)),
[INFO] [stdout] 242 +             _ => panic!("Trying to feed {:?}", self.status),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/solutions/day7.rs:44:29
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 x => panic!(format!("1: Unexpected status {:?}", x)),
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 44 -                 x => panic!(format!("1: Unexpected status {:?}", x)),
[INFO] [stdout] 44 +                 x => panic!("1: Unexpected status {:?}", x),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/solutions/day7.rs:48:29
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 x => panic!(format!("2: Unexpected status {:?}", x)),
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 48 -                 x => panic!(format!("2: Unexpected status {:?}", x)),
[INFO] [stdout] 48 +                 x => panic!("2: Unexpected status {:?}", x),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `day` and `part` are never read
[INFO] [stdout]   --> src/solutions/mod.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct DayParseError {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 29 |     day: i32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 30 |     part: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DayParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `number` is never read
[INFO] [stdout]   --> src/solutions/day8.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub struct Layer<'a> {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 96 |     number: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Layer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/intcode/mod.rs:242:25
[INFO] [stdout]     |
[INFO] [stdout] 242 |             _ => panic!(format!("Trying to feed {:?}", self.status)),
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 242 -             _ => panic!(format!("Trying to feed {:?}", self.status)),
[INFO] [stdout] 242 +             _ => panic!("Trying to feed {:?}", self.status),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/solutions/day7.rs:44:29
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 x => panic!(format!("1: Unexpected status {:?}", x)),
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 44 -                 x => panic!(format!("1: Unexpected status {:?}", x)),
[INFO] [stdout] 44 +                 x => panic!("1: Unexpected status {:?}", x),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/solutions/day7.rs:48:29
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 x => panic!(format!("2: Unexpected status {:?}", x)),
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 48 -                 x => panic!(format!("2: Unexpected status {:?}", x)),
[INFO] [stdout] 48 +                 x => panic!("2: Unexpected status {:?}", x),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Runnable` is never used
[INFO] [stdout]    --> src/intcode/mod.rs:329:11
[INFO] [stdout]     |
[INFO] [stdout] 329 | pub trait Runnable {
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `day` and `part` are never read
[INFO] [stdout]   --> src/solutions/mod.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct DayParseError {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 29 |     day: i32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 30 |     part: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DayParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `number` is never read
[INFO] [stdout]   --> src/solutions/day8.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub struct Layer<'a> {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 96 |     number: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Layer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/intcode/mod.rs:242:25
[INFO] [stdout]     |
[INFO] [stdout] 242 |             _ => panic!(format!("Trying to feed {:?}", self.status)),
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 242 -             _ => panic!(format!("Trying to feed {:?}", self.status)),
[INFO] [stdout] 242 +             _ => panic!("Trying to feed {:?}", self.status),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/solutions/day7.rs:44:29
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 x => panic!(format!("1: Unexpected status {:?}", x)),
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 44 -                 x => panic!(format!("1: Unexpected status {:?}", x)),
[INFO] [stdout] 44 +                 x => panic!("1: Unexpected status {:?}", x),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/solutions/day7.rs:48:29
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 x => panic!(format!("2: Unexpected status {:?}", x)),
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 48 -                 x => panic!(format!("2: Unexpected status {:?}", x)),
[INFO] [stdout] 48 +                 x => panic!("2: Unexpected status {:?}", x),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Runnable` is never used
[INFO] [stdout]    --> src/intcode/mod.rs:329:11
[INFO] [stdout]     |
[INFO] [stdout] 329 | pub trait Runnable {
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `day` and `part` are never read
[INFO] [stdout]   --> src/solutions/mod.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct DayParseError {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 29 |     day: i32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 30 |     part: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DayParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `number` is never read
[INFO] [stdout]   --> src/solutions/day8.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub struct Layer<'a> {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 96 |     number: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Layer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/intcode/mod.rs:242:25
[INFO] [stdout]     |
[INFO] [stdout] 242 |             _ => panic!(format!("Trying to feed {:?}", self.status)),
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 242 -             _ => panic!(format!("Trying to feed {:?}", self.status)),
[INFO] [stdout] 242 +             _ => panic!("Trying to feed {:?}", self.status),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/solutions/day7.rs:44:29
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 x => panic!(format!("1: Unexpected status {:?}", x)),
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 44 -                 x => panic!(format!("1: Unexpected status {:?}", x)),
[INFO] [stdout] 44 +                 x => panic!("1: Unexpected status {:?}", x),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/solutions/day7.rs:48:29
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 x => panic!(format!("2: Unexpected status {:?}", x)),
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 48 -                 x => panic!(format!("2: Unexpected status {:?}", x)),
[INFO] [stdout] 48 +                 x => panic!("2: Unexpected status {:?}", x),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "14f6f9a07e0d58828d692e6c922bad3287768f4a70f640b37d8e1d4d2ea50560", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14f6f9a07e0d58828d692e6c922bad3287768f4a70f640b37d8e1d4d2ea50560", kill_on_drop: false }`
[INFO] [stdout] 14f6f9a07e0d58828d692e6c922bad3287768f4a70f640b37d8e1d4d2ea50560