[INFO] cloning repository https://github.com/thejohncrafter/projets-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thejohncrafter/projets-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthejohncrafter%2Fprojets-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthejohncrafter%2Fprojets-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2c4525f5d241a67663a1f74f2326abd2890c44fa
[INFO] checking thejohncrafter/projets-2020 against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthejohncrafter%2Fprojets-2020" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/thejohncrafter/projets-2020
[INFO] finished tweaking git repo https://github.com/thejohncrafter/projets-2020
[INFO] tweaked toml for git repo https://github.com/thejohncrafter/projets-2020 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/thejohncrafter/projets-2020 on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/thejohncrafter/projets-2020 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" "+a5689b034ad287112f709693384a37f1377eb9cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] da9bcd7614d2feaed28c746df22aaa6d171a78234423b2b5911c0c7294e29196
[INFO] running `Command { std: "docker" "start" "da9bcd7614d2feaed28c746df22aaa6d171a78234423b2b5911c0c7294e29196", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da9bcd7614d2feaed28c746df22aaa6d171a78234423b2b5911c0c7294e29196", 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" "da9bcd7614d2feaed28c746df22aaa6d171a78234423b2b5911c0c7294e29196" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da9bcd7614d2feaed28c746df22aaa6d171a78234423b2b5911c0c7294e29196", 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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "da9bcd7614d2feaed28c746df22aaa6d171a78234423b2b5911c0c7294e29196" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling automata v0.1.0 (/opt/rustwide/workdir/automata)
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stdout] warning: unused import: `macros::*`
[INFO] [stdout]   --> automata/src/lexer/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use macros::*;
[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: `macros::*`
[INFO] [stdout]   --> automata/src/lexer/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use macros::*;
[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: `macros::*`
[INFO] [stdout]   --> automata/src/lexer/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use macros::*;
[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: `macros::*`
[INFO] [stdout]   --> automata/src/lexer/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use macros::*;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stdout] warning: method `print_extra_info` is never used
[INFO] [stdout]   --> automata/src/parser/items.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub trait LRItem: Ord + Copy {
[INFO] [stdout]    |           ------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 77 |     fn print_extra_info(&self);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> automata/src/parser/pda.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Token(Symbol, Option<T>),
[INFO] [stdout]   |     ----- ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `StackItem` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 -     Token(Symbol, Option<T>),
[INFO] [stdout] 8 +     Token((), Option<T>),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `(S, String)`
[INFO] [stdout]   --> automata/src/parser/pda.rs:83:57
[INFO] [stdout]    |
[INFO] [stdout] 83 |                         let built = built.map_err(|msg| (span, msg).into())?;
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 83 -                         let built = built.map_err(|msg| (span, msg).into())?;
[INFO] [stdout] 83 +                         let built = built.map_err(|msg| (span, msg))?;
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 83 -                         let built = built.map_err(|msg| (span, msg).into())?;
[INFO] [stdout] 83 +                         let built = built.map_err(|msg| <(S, String) as Into<_>>::into((span, msg)))?;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> automata/src/parser/builder.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 20 |         rules: &'a [Production],
[INFO] [stdout]    |                 -- the lifetime is named here
[INFO] [stdout] 21 |         term_count: usize, nterm_count: usize,
[INFO] [stdout] 22 |     ) -> Builder<I> {
[INFO] [stdout]    |          ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 22 |     ) -> Builder<'a, I> {
[INFO] [stdout]    |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> automata/src/parser/api.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |             panic!(format!("Can't find the non-terminal \"{}\"", name))
[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/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: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 26 -             panic!(format!("Can't find the non-terminal \"{}\"", name))
[INFO] [stdout] 26 +             panic!("Can't find the non-terminal \"{}\"", name)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `automata` (lib) due to 1 previous error; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: method `print_extra_info` is never used
[INFO] [stdout]   --> automata/src/parser/items.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub trait LRItem: Ord + Copy {
[INFO] [stdout]    |           ------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 77 |     fn print_extra_info(&self);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> automata/src/parser/pda.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Token(Symbol, Option<T>),
[INFO] [stdout]   |     ----- ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `StackItem` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 -     Token(Symbol, Option<T>),
[INFO] [stdout] 8 +     Token((), Option<T>),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `(S, String)`
[INFO] [stdout]   --> automata/src/parser/pda.rs:83:57
[INFO] [stdout]    |
[INFO] [stdout] 83 |                         let built = built.map_err(|msg| (span, msg).into())?;
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 83 -                         let built = built.map_err(|msg| (span, msg).into())?;
[INFO] [stdout] 83 +                         let built = built.map_err(|msg| (span, msg))?;
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 83 -                         let built = built.map_err(|msg| (span, msg).into())?;
[INFO] [stdout] 83 +                         let built = built.map_err(|msg| <(S, String) as Into<_>>::into((span, msg)))?;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> automata/src/parser/builder.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 20 |         rules: &'a [Production],
[INFO] [stdout]    |                 -- the lifetime is named here
[INFO] [stdout] 21 |         term_count: usize, nterm_count: usize,
[INFO] [stdout] 22 |     ) -> Builder<I> {
[INFO] [stdout]    |          ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 22 |     ) -> Builder<'a, I> {
[INFO] [stdout]    |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> automata/src/parser/api.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |             panic!(format!("Can't find the non-terminal \"{}\"", name))
[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/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: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 26 -             panic!(format!("Can't find the non-terminal \"{}\"", name))
[INFO] [stdout] 26 +             panic!("Can't find the non-terminal \"{}\"", name)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_extra_info` is never used
[INFO] [stdout]   --> automata/src/parser/items.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub trait LRItem: Ord + Copy {
[INFO] [stdout]    |           ------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 77 |     fn print_extra_info(&self);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> automata/src/parser/pda.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Token(Symbol, Option<T>),
[INFO] [stdout]   |     ----- ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `StackItem` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 -     Token(Symbol, Option<T>),
[INFO] [stdout] 8 +     Token((), Option<T>),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `(S, String)`
[INFO] [stdout]   --> automata/src/parser/pda.rs:83:57
[INFO] [stdout]    |
[INFO] [stdout] 83 |                         let built = built.map_err(|msg| (span, msg).into())?;
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 83 -                         let built = built.map_err(|msg| (span, msg).into())?;
[INFO] [stdout] 83 +                         let built = built.map_err(|msg| (span, msg))?;
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 83 -                         let built = built.map_err(|msg| (span, msg).into())?;
[INFO] [stdout] 83 +                         let built = built.map_err(|msg| <(S, String) as Into<_>>::into((span, msg)))?;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> automata/src/parser/builder.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 20 |         rules: &'a [Production],
[INFO] [stdout]    |                 -- the lifetime is named here
[INFO] [stdout] 21 |         term_count: usize, nterm_count: usize,
[INFO] [stdout] 22 |     ) -> Builder<I> {
[INFO] [stdout]    |          ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 22 |     ) -> Builder<'a, I> {
[INFO] [stdout]    |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> automata/src/parser/api.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |             panic!(format!("Can't find the non-terminal \"{}\"", name))
[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/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: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 26 -             panic!(format!("Can't find the non-terminal \"{}\"", name))
[INFO] [stdout] 26 +             panic!("Can't find the non-terminal \"{}\"", name)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `automata` (lib) due to 1 previous error; 5 warnings emitted
[INFO] [stderr] error: could not compile `automata` (lib) due to 1 previous error; 5 warnings emitted
[INFO] [stdout] warning: method `print_extra_info` is never used
[INFO] [stdout]   --> automata/src/parser/items.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub trait LRItem: Ord + Copy {
[INFO] [stdout]    |           ------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 77 |     fn print_extra_info(&self);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> automata/src/parser/pda.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Token(Symbol, Option<T>),
[INFO] [stdout]   |     ----- ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `StackItem` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 -     Token(Symbol, Option<T>),
[INFO] [stdout] 8 +     Token((), Option<T>),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `(S, String)`
[INFO] [stdout]   --> automata/src/parser/pda.rs:83:57
[INFO] [stdout]    |
[INFO] [stdout] 83 |                         let built = built.map_err(|msg| (span, msg).into())?;
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 83 -                         let built = built.map_err(|msg| (span, msg).into())?;
[INFO] [stdout] 83 +                         let built = built.map_err(|msg| (span, msg))?;
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 83 -                         let built = built.map_err(|msg| (span, msg).into())?;
[INFO] [stdout] 83 +                         let built = built.map_err(|msg| <(S, String) as Into<_>>::into((span, msg)))?;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> automata/src/parser/builder.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 20 |         rules: &'a [Production],
[INFO] [stdout]    |                 -- the lifetime is named here
[INFO] [stdout] 21 |         term_count: usize, nterm_count: usize,
[INFO] [stdout] 22 |     ) -> Builder<I> {
[INFO] [stdout]    |          ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 22 |     ) -> Builder<'a, I> {
[INFO] [stdout]    |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> automata/src/parser/api.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |             panic!(format!("Can't find the non-terminal \"{}\"", name))
[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/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: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 26 -             panic!(format!("Can't find the non-terminal \"{}\"", name))
[INFO] [stdout] 26 +             panic!("Can't find the non-terminal \"{}\"", name)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `automata` (lib test) due to 1 previous error; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "da9bcd7614d2feaed28c746df22aaa6d171a78234423b2b5911c0c7294e29196", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da9bcd7614d2feaed28c746df22aaa6d171a78234423b2b5911c0c7294e29196", kill_on_drop: false }`
[INFO] [stdout] da9bcd7614d2feaed28c746df22aaa6d171a78234423b2b5911c0c7294e29196
