[INFO] cloning repository https://github.com/tossyyukky/rust-sample-easy-parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tossyyukky/rust-sample-easy-parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftossyyukky%2Frust-sample-easy-parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftossyyukky%2Frust-sample-easy-parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c1da1ebcf95313fe16fd5d8d2521c5fc1d0f7cab
[INFO] testing tossyyukky/rust-sample-easy-parser against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftossyyukky%2Frust-sample-easy-parser" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tossyyukky/rust-sample-easy-parser on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tossyyukky/rust-sample-easy-parser
[INFO] finished tweaking git repo https://github.com/tossyyukky/rust-sample-easy-parser
[INFO] tweaked toml for git repo https://github.com/tossyyukky/rust-sample-easy-parser written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/tossyyukky/rust-sample-easy-parser already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47e428bc59c77e9832dff373686501bd9412610d6f7ec77f6b0e618f1eb43eaa
[INFO] running `Command { std: "docker" "start" "-a" "47e428bc59c77e9832dff373686501bd9412610d6f7ec77f6b0e618f1eb43eaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47e428bc59c77e9832dff373686501bd9412610d6f7ec77f6b0e618f1eb43eaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47e428bc59c77e9832dff373686501bd9412610d6f7ec77f6b0e618f1eb43eaa", kill_on_drop: false }`
[INFO] [stdout] 47e428bc59c77e9832dff373686501bd9412610d6f7ec77f6b0e618f1eb43eaa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74cc3656aaa106a4e4975922413ccd8997bc549d41420c745b69392c7bbdfba6
[INFO] running `Command { std: "docker" "start" "-a" "74cc3656aaa106a4e4975922413ccd8997bc549d41420c745b69392c7bbdfba6", kill_on_drop: false }`
[INFO] [stderr]    Compiling parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:671:25
[INFO] [stdout]     |
[INFO] [stdout] 671 |         let (e, loc): (&StdError, Loc) = match self {
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 671 -         let (e, loc): (&StdError, Loc) = match self {
[INFO] [stdout] 671 +         let (e, loc): (&dyn StdError, Loc) = match self {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/main.rs:727:31
[INFO] [stdout]     |
[INFO] [stdout] 727 |     fn show_diagnostic(&self, input: &str) {
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `num`
[INFO] [stdout]    --> src/main.rs:309:8
[INFO] [stdout]     |
[INFO] [stdout] 309 |     fn num(n: u64, loc: Loc) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UnexpectedToken`
[INFO] [stdout]    --> src/main.rs:382:5
[INFO] [stdout]     |
[INFO] [stdout] 382 |     UnexpectedToken(Token),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `ParseError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/main.rs:379:10
[INFO] [stdout]     |
[INFO] [stdout] 379 | #[derive(Debug, Clone, PartialEq, Eq, Hash)]
[INFO] [stdout]     |          ^^^^^  ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Interperter`
[INFO] [stdout]    --> src/main.rs:708:8
[INFO] [stdout]     |
[INFO] [stdout] 708 | struct Interperter;
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/main.rs:711:12
[INFO] [stdout]     |
[INFO] [stdout] 711 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DivisionByZero`
[INFO] [stdout]    --> src/main.rs:718:5
[INFO] [stdout]     |
[INFO] [stdout] 718 |     DivisionByZero,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `InterperterErrorKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/main.rs:716:10
[INFO] [stdout]     |
[INFO] [stdout] 716 | #[derive(Debug, Clone, PartialEq, Eq, Hash)]
[INFO] [stdout]     |          ^^^^^  ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `show_diagnostic`
[INFO] [stdout]    --> src/main.rs:727:8
[INFO] [stdout]     |
[INFO] [stdout] 727 |     fn show_diagnostic(&self, input: &str) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eval`
[INFO] [stdout]    --> src/main.rs:760:12
[INFO] [stdout]     |
[INFO] [stdout] 760 |     pub fn eval(&mut self, expr: &Ast) -> Result<i64, InterperterError> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eval_uniop`
[INFO] [stdout]    --> src/main.rs:780:8
[INFO] [stdout]     |
[INFO] [stdout] 780 |     fn eval_uniop(&mut self, op: &UniOp, n: i64) -> i64 {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eval_binop`
[INFO] [stdout]    --> src/main.rs:787:8
[INFO] [stdout]     |
[INFO] [stdout] 787 |     fn eval_binop(&mut self, op: &BinOp, l: i64, r: i64) -> Result<i64, InterperterErrorKind> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     stdout.write(s.as_bytes());
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "74cc3656aaa106a4e4975922413ccd8997bc549d41420c745b69392c7bbdfba6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74cc3656aaa106a4e4975922413ccd8997bc549d41420c745b69392c7bbdfba6", kill_on_drop: false }`
[INFO] [stdout] 74cc3656aaa106a4e4975922413ccd8997bc549d41420c745b69392c7bbdfba6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d0c00474a1fad238e188ad72cc7371a206b3da21c30554a063ddcb226fec8b7
[INFO] running `Command { std: "docker" "start" "-a" "1d0c00474a1fad238e188ad72cc7371a206b3da21c30554a063ddcb226fec8b7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:671:25
[INFO] [stdout]     |
[INFO] [stdout] 671 |         let (e, loc): (&StdError, Loc) = match self {
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 671 -         let (e, loc): (&StdError, Loc) = match self {
[INFO] [stdout] 671 +         let (e, loc): (&dyn StdError, Loc) = match self {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/main.rs:727:31
[INFO] [stdout]     |
[INFO] [stdout] 727 |     fn show_diagnostic(&self, input: &str) {
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UnexpectedToken`
[INFO] [stdout]    --> src/main.rs:382:5
[INFO] [stdout]     |
[INFO] [stdout] 382 |     UnexpectedToken(Token),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `ParseError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/main.rs:379:10
[INFO] [stdout]     |
[INFO] [stdout] 379 | #[derive(Debug, Clone, PartialEq, Eq, Hash)]
[INFO] [stdout]     |          ^^^^^  ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Interperter`
[INFO] [stdout]    --> src/main.rs:708:8
[INFO] [stdout]     |
[INFO] [stdout] 708 | struct Interperter;
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/main.rs:711:12
[INFO] [stdout]     |
[INFO] [stdout] 711 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DivisionByZero`
[INFO] [stdout]    --> src/main.rs:718:5
[INFO] [stdout]     |
[INFO] [stdout] 718 |     DivisionByZero,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `InterperterErrorKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/main.rs:716:10
[INFO] [stdout]     |
[INFO] [stdout] 716 | #[derive(Debug, Clone, PartialEq, Eq, Hash)]
[INFO] [stdout]     |          ^^^^^  ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `show_diagnostic`
[INFO] [stdout]    --> src/main.rs:727:8
[INFO] [stdout]     |
[INFO] [stdout] 727 |     fn show_diagnostic(&self, input: &str) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eval`
[INFO] [stdout]    --> src/main.rs:760:12
[INFO] [stdout]     |
[INFO] [stdout] 760 |     pub fn eval(&mut self, expr: &Ast) -> Result<i64, InterperterError> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eval_uniop`
[INFO] [stdout]    --> src/main.rs:780:8
[INFO] [stdout]     |
[INFO] [stdout] 780 |     fn eval_uniop(&mut self, op: &UniOp, n: i64) -> i64 {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eval_binop`
[INFO] [stdout]    --> src/main.rs:787:8
[INFO] [stdout]     |
[INFO] [stdout] 787 |     fn eval_binop(&mut self, op: &BinOp, l: i64, r: i64) -> Result<i64, InterperterErrorKind> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     stdout.write(s.as_bytes());
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.14s
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/parser-0b8c71b2f85ec9d9)
[INFO] running `Command { std: "docker" "inspect" "1d0c00474a1fad238e188ad72cc7371a206b3da21c30554a063ddcb226fec8b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d0c00474a1fad238e188ad72cc7371a206b3da21c30554a063ddcb226fec8b7", kill_on_drop: false }`
[INFO] [stdout] 1d0c00474a1fad238e188ad72cc7371a206b3da21c30554a063ddcb226fec8b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 87048a6d2cef152465e6044156b8e8ba82ee232f932e30dbdceb28f8f5831b09
[INFO] running `Command { std: "docker" "start" "-a" "87048a6d2cef152465e6044156b8e8ba82ee232f932e30dbdceb28f8f5831b09", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:671:25
[INFO] [stderr]     |
[INFO] [stderr] 671 |         let (e, loc): (&StdError, Loc) = match self {
[INFO] [stderr]     |                         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 671 -         let (e, loc): (&StdError, Loc) = match self {
[INFO] [stderr] 671 +         let (e, loc): (&dyn StdError, Loc) = match self {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]    --> src/main.rs:727:31
[INFO] [stderr]     |
[INFO] [stderr] 727 |     fn show_diagnostic(&self, input: &str) {
[INFO] [stderr]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `UnexpectedToken`
[INFO] [stderr]    --> src/main.rs:382:5
[INFO] [stderr]     |
[INFO] [stderr] 382 |     UnexpectedToken(Token),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `ParseError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    --> src/main.rs:379:10
[INFO] [stderr]     |
[INFO] [stderr] 379 | #[derive(Debug, Clone, PartialEq, Eq, Hash)]
[INFO] [stderr]     |          ^^^^^  ^^^^^
[INFO] [stderr]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Interperter`
[INFO] [stderr]    --> src/main.rs:708:8
[INFO] [stderr]     |
[INFO] [stderr] 708 | struct Interperter;
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/main.rs:711:12
[INFO] [stderr]     |
[INFO] [stderr] 711 |     pub fn new() -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DivisionByZero`
[INFO] [stderr]    --> src/main.rs:718:5
[INFO] [stderr]     |
[INFO] [stderr] 718 |     DivisionByZero,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: `InterperterErrorKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    --> src/main.rs:716:10
[INFO] [stderr]     |
[INFO] [stderr] 716 | #[derive(Debug, Clone, PartialEq, Eq, Hash)]
[INFO] [stderr]     |          ^^^^^  ^^^^^
[INFO] [stderr]     = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `show_diagnostic`
[INFO] [stderr]    --> src/main.rs:727:8
[INFO] [stderr]     |
[INFO] [stderr] 727 |     fn show_diagnostic(&self, input: &str) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `eval`
[INFO] [stderr]    --> src/main.rs:760:12
[INFO] [stderr]     |
[INFO] [stderr] 760 |     pub fn eval(&mut self, expr: &Ast) -> Result<i64, InterperterError> {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `eval_uniop`
[INFO] [stderr]    --> src/main.rs:780:8
[INFO] [stderr]     |
[INFO] [stderr] 780 |     fn eval_uniop(&mut self, op: &UniOp, n: i64) -> i64 {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `eval_binop`
[INFO] [stderr]    --> src/main.rs:787:8
[INFO] [stderr]     |
[INFO] [stderr] 787 |     fn eval_binop(&mut self, op: &BinOp, l: i64, r: i64) -> Result<i64, InterperterErrorKind> {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     stdout.write(s.as_bytes());
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `parser` (bin "parser" test) generated 11 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/parser-0b8c71b2f85ec9d9)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_lexer ... ok
[INFO] [stdout] test test_parser ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "87048a6d2cef152465e6044156b8e8ba82ee232f932e30dbdceb28f8f5831b09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87048a6d2cef152465e6044156b8e8ba82ee232f932e30dbdceb28f8f5831b09", kill_on_drop: false }`
[INFO] [stdout] 87048a6d2cef152465e6044156b8e8ba82ee232f932e30dbdceb28f8f5831b09