[INFO] cloning repository https://github.com/zyxw59/formatting
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zyxw59/formatting" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzyxw59%2Fformatting", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzyxw59%2Fformatting'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 201fdeb35234149de913dc022610b556cbe79666
[INFO] testing zyxw59/formatting/201fdeb35234149de913dc022610b556cbe79666 against 1.97.0-beta.6 for beta-1.98-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzyxw59%2Fformatting" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zyxw59/formatting
[INFO] finished tweaking git repo https://github.com/zyxw59/formatting
[INFO] tweaked toml for git repo https://github.com/zyxw59/formatting written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zyxw59/formatting on toolchain 1.97.0-beta.6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.97.0-beta.6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/zyxw59/formatting 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" "+1.97.0-beta.6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded backtrace v0.3.6
[INFO] [stderr]   Downloaded cc v1.0.13
[INFO] [stderr]   Downloaded rustc-demangle v0.1.7
[INFO] [stderr]   Downloaded libc v0.2.40
[INFO] [stderr]   Downloaded winapi v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 7e3d3b17dc174c6373c005436b57de4b62f548841049e597fddbea2659433bb4
[INFO] running `Command { std: "docker" "start" "7e3d3b17dc174c6373c005436b57de4b62f548841049e597fddbea2659433bb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e3d3b17dc174c6373c005436b57de4b62f548841049e597fddbea2659433bb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7e3d3b17dc174c6373c005436b57de4b62f548841049e597fddbea2659433bb4" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e3d3b17dc174c6373c005436b57de4b62f548841049e597fddbea2659433bb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7e3d3b17dc174c6373c005436b57de4b62f548841049e597fddbea2659433bb4" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling cc v1.0.13
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling libc v0.2.40
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.7
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]    Compiling backtrace v0.3.6
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling formatting v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[macro_use]
[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 imports: `Backtrace`, `Context`, `Fail`, and `ResultExt`
[INFO] [stdout]  --> src/parser/mod.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use failure::{Backtrace, Context, Fail, ResultExt};
[INFO] [stdout]   |               ^^^^^^^^^  ^^^^^^^  ^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ErrorKind` and `Error`
[INFO] [stdout]  --> src/parser/mod.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | use errors::{Error, ErrorKind};
[INFO] [stdout]   |              ^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Backtrace`, `Context`, and `Fail`
[INFO] [stdout]  --> src/parser/bufread.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use failure::{Backtrace, Context, Fail, ResultExt};
[INFO] [stdout]   |               ^^^^^^^^^  ^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:18:32
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stdout]    |                                ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn cause(&self) -> Option<&dyn Fail> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Error` is never constructed
[INFO] [stdout]  --> src/errors.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Error {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `kind` is never used
[INFO] [stdout]   --> src/errors.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Error {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 12 |     pub fn kind(&self) -> ErrorKind {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ErrorKind` is never used
[INFO] [stdout]   --> src/errors.rs:48:10
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub enum ErrorKind {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_io` is never used
[INFO] [stdout]   --> src/errors.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl ErrorKind {
[INFO] [stdout]    | -------------- associated function in this implementation
[INFO] [stdout] 60 |     pub fn from_io(err: &io::Error, line: usize) -> ErrorKind {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]   --> src/parser/mod.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Parser<R> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BufReadIter` is never constructed
[INFO] [stdout]   --> src/parser/bufread.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct BufReadIter<R> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/parser/bufread.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl<R: BufRead> BufReadIter<R> {
[INFO] [stdout]    | ------------------------------- associated items in this implementation
[INFO] [stdout] 21 |     /// Constructs a new `BufReadIter` from the given `BufRead`.
[INFO] [stdout] 22 |     pub fn new(input: R) -> BufReadIter<R> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn column(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn line(&self) -> usize {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn fill_buffer(&mut self) -> Result<(), Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn next(&mut self) -> Result<Option<char>, Error> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     pub fn expect_next(&mut self) -> Result<char, Error> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn current(&self) -> Option<&char> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub fn peek(&self) -> Option<&char> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.82s
[INFO] running `Command { std: "docker" "inspect" "7e3d3b17dc174c6373c005436b57de4b62f548841049e597fddbea2659433bb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7e3d3b17dc174c6373c005436b57de4b62f548841049e597fddbea2659433bb4" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling formatting v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[macro_use]
[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 imports: `Backtrace`, `Context`, `Fail`, and `ResultExt`
[INFO] [stdout]  --> src/parser/mod.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use failure::{Backtrace, Context, Fail, ResultExt};
[INFO] [stdout]   |               ^^^^^^^^^  ^^^^^^^  ^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ErrorKind` and `Error`
[INFO] [stdout]  --> src/parser/mod.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | use errors::{Error, ErrorKind};
[INFO] [stdout]   |              ^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Backtrace`, `Context`, and `Fail`
[INFO] [stdout]  --> src/parser/bufread.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use failure::{Backtrace, Context, Fail, ResultExt};
[INFO] [stdout]   |               ^^^^^^^^^  ^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:18:32
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stdout]    |                                ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn cause(&self) -> Option<&dyn Fail> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Error` is never constructed
[INFO] [stdout]  --> src/errors.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Error {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `kind` is never used
[INFO] [stdout]   --> src/errors.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Error {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 12 |     pub fn kind(&self) -> ErrorKind {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ErrorKind` is never used
[INFO] [stdout]   --> src/errors.rs:48:10
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub enum ErrorKind {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_io` is never used
[INFO] [stdout]   --> src/errors.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl ErrorKind {
[INFO] [stdout]    | -------------- associated function in this implementation
[INFO] [stdout] 60 |     pub fn from_io(err: &io::Error, line: usize) -> ErrorKind {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]   --> src/parser/mod.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Parser<R> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BufReadIter` is never constructed
[INFO] [stdout]   --> src/parser/bufread.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct BufReadIter<R> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/parser/bufread.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl<R: BufRead> BufReadIter<R> {
[INFO] [stdout]    | ------------------------------- associated items in this implementation
[INFO] [stdout] 21 |     /// Constructs a new `BufReadIter` from the given `BufRead`.
[INFO] [stdout] 22 |     pub fn new(input: R) -> BufReadIter<R> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn column(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn line(&self) -> usize {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn fill_buffer(&mut self) -> Result<(), Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn next(&mut self) -> Result<Option<char>, Error> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     pub fn expect_next(&mut self) -> Result<char, Error> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn current(&self) -> Option<&char> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub fn peek(&self) -> Option<&char> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "7e3d3b17dc174c6373c005436b57de4b62f548841049e597fddbea2659433bb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7e3d3b17dc174c6373c005436b57de4b62f548841049e597fddbea2659433bb4" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stdout] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/main.rs:2:1
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 2 | #[macro_use]
[INFO] [stdout] 
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Backtrace`, `Context`, `Fail`, and `ResultExt`
[INFO] [stderr]  --> src/parser/mod.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use failure::{Backtrace, Context, Fail, ResultExt};
[INFO] [stderr]   |               ^^^^^^^^^  ^^^^^^^  ^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ErrorKind` and `Error`
[INFO] [stderr]  --> src/parser/mod.rs:3:14
[INFO] [stderr]   |
[INFO] [stderr] 3 | use errors::{Error, ErrorKind};
[INFO] [stderr]   |              ^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Backtrace`, `Context`, and `Fail`
[INFO] [stderr]  --> src/parser/bufread.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use failure::{Backtrace, Context, Fail, ResultExt};
[INFO] [stderr]   |               ^^^^^^^^^  ^^^^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:18:32
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stderr]    |                                ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn cause(&self) -> Option<&dyn Fail> {
[INFO] [stderr]    |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Error` is never constructed
[INFO] [stderr]  --> src/errors.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct Error {
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `kind` is never used
[INFO] [stderr]   --> src/errors.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | impl Error {
[INFO] [stderr]    | ---------- method in this implementation
[INFO] [stderr] 12 |     pub fn kind(&self) -> ErrorKind {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `ErrorKind` is never used
[INFO] [stderr]   --> src/errors.rs:48:10
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub enum ErrorKind {
[INFO] [stderr]    |          ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `from_io` is never used
[INFO] [stderr]   --> src/errors.rs:60:12
[INFO] [stderr]    |
[INFO] [stderr] 59 | impl ErrorKind {
[INFO] [stderr]    | -------------- associated function in this implementation
[INFO] [stderr] 60 |     pub fn from_io(err: &io::Error, line: usize) -> ErrorKind {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Parser` is never constructed
[INFO] [stderr]   --> src/parser/mod.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct Parser<R> {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BufReadIter` is never constructed
[INFO] [stderr]   --> src/parser/bufread.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct BufReadIter<R> {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated items are never used
[INFO] [stderr]   --> src/parser/bufread.rs:22:12
[INFO] [stderr]    |
[INFO] [stderr] 20 | impl<R: BufRead> BufReadIter<R> {
[INFO] [stderr]    | ------------------------------- associated items in this implementation
[INFO] [stderr] 21 |     /// Constructs a new `BufReadIter` from the given `BufRead`.
[INFO] [stderr] 22 |     pub fn new(input: R) -> BufReadIter<R> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 33 |     pub fn column(&self) -> usize {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 38 |     pub fn line(&self) -> usize {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 43 |     fn fill_buffer(&mut self) -> Result<(), Error> {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 55 |     pub fn next(&mut self) -> Result<Option<char>, Error> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 66 |     pub fn expect_next(&mut self) -> Result<char, Error> {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 72 |     pub fn current(&self) -> Option<&char> {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 78 |     pub fn peek(&self) -> Option<&char> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `formatting` (bin "formatting" test) generated 12 warnings (run `cargo fix --bin "formatting" -p formatting --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/formatting-e928eeed03eea621)
[INFO] running `Command { std: "docker" "inspect" "7e3d3b17dc174c6373c005436b57de4b62f548841049e597fddbea2659433bb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e3d3b17dc174c6373c005436b57de4b62f548841049e597fddbea2659433bb4", kill_on_drop: false }`
[INFO] [stdout] 7e3d3b17dc174c6373c005436b57de4b62f548841049e597fddbea2659433bb4
