[INFO] cloning repository https://github.com/sayaks/fraction-interpreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sayaks/fraction-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsayaks%2Ffraction-interpreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsayaks%2Ffraction-interpreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9f1ebb1090b73fbcbf5dc30093dc7e91f34a70ea
[INFO] testing sayaks/fraction-interpreter against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsayaks%2Ffraction-interpreter" "/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/sayaks/fraction-interpreter
[INFO] finished tweaking git repo https://github.com/sayaks/fraction-interpreter
[INFO] tweaked toml for git repo https://github.com/sayaks/fraction-interpreter written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sayaks/fraction-interpreter on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sayaks/fraction-interpreter 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" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f80637aaf6c8169d5d4ae9c7c62b7f9f62c4f045477aa73562154076652f1a5
[INFO] running `Command { std: "docker" "start" "-a" "2f80637aaf6c8169d5d4ae9c7c62b7f9f62c4f045477aa73562154076652f1a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f80637aaf6c8169d5d4ae9c7c62b7f9f62c4f045477aa73562154076652f1a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f80637aaf6c8169d5d4ae9c7c62b7f9f62c4f045477aa73562154076652f1a5", kill_on_drop: false }`
[INFO] [stdout] 2f80637aaf6c8169d5d4ae9c7c62b7f9f62c4f045477aa73562154076652f1a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 435c8f86cc0373d3a072d8c6e5646f56ce9177292c07215ccb4460f55e1e8620
[INFO] running `Command { std: "docker" "start" "-a" "435c8f86cc0373d3a072d8c6e5646f56ce9177292c07215ccb4460f55e1e8620", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling ucd-trie v0.1.1
[INFO] [stderr]    Compiling syn v0.15.30
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]    Compiling rpds v0.6.0
[INFO] [stderr]    Compiling pest v2.1.0
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling pest_meta v2.1.0
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling fraction-interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interpreter/ast.rs:93:19
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub func: &'a Fn (&List<Value<'a>>) -> Result<Value<'a>, RuntimeError>,
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[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/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] 93 |     pub func: &'a dyn Fn (&List<Value<'a>>) -> Result<Value<'a>, RuntimeError>,
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/interpreter/parser.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | /     match assignment_type.as_rule() {
[INFO] [stdout] 32 | |         Rule::var_assign => unimplemented!(),
[INFO] [stdout] 33 | |         Rule::func_assign => unimplemented!(),
[INFO] [stdout] 34 | |         _ => unreachable!(),
[INFO] [stdout] 35 | |     };
[INFO] [stdout]    | |_____- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 36 |
[INFO] [stdout] 37 |       unimplemented!();
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]    = note: this warning originates in the macro `unimplemented` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pair`
[INFO] [stdout]   --> src/interpreter/parser.rs:40:26
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn expression_parser<'a>(pair: Pair<Rule>) -> Result<ast::Statement<'a>, Error<Rule>> {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_pair`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Closure<'a>` is more private than the item `Value::Function::0`
[INFO] [stdout]    --> src/interpreter/ast.rs:105:14
[INFO] [stdout]     |
[INFO] [stdout] 105 |     Function(Closure<'a>),
[INFO] [stdout]     |              ^^^^^^^^^^^ field `Value::Function::0` is reachable at visibility `pub(in crate::interpreter)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `Closure<'a>` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/interpreter/ast.rs:64:1
[INFO] [stdout]     |
[INFO] [stdout]  64 | struct Closure<'a> {    
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RuntimeError` is never used
[INFO] [stdout]  --> src/interpreter/ast.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum RuntimeError {
[INFO] [stdout]   |          ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Environment` is never constructed
[INFO] [stdout]   --> src/interpreter/ast.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Environment<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get`, and `evaluate` are never used
[INFO] [stdout]   --> src/interpreter/ast.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl<'a> Environment<'a> {
[INFO] [stdout]    | ------------------------ associated items in this implementation
[INFO] [stdout] 24 |     pub fn new(parent: Option<Box<&'a Environment<'a>>>, defines: Vec<(&Name, &Value<'a>)>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     fn get(&self, name: &Name) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn evaluate(&self, expr: &'a Expression<'a>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Closure` is never constructed
[INFO] [stdout]   --> src/interpreter/ast.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | struct Closure<'a> {    
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `call` is never used
[INFO] [stdout]   --> src/interpreter/ast.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | impl<'a> Closure<'a> {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] 72 |     fn call(&'a self, args: &'a List<Value<'a>>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Builtin` is never constructed
[INFO] [stdout]   --> src/interpreter/ast.rs:91:12
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub struct Builtin<'a> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Value` is never used
[INFO] [stdout]   --> src/interpreter/ast.rs:99:10
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub enum Value<'a> {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `try_call` is never used
[INFO] [stdout]    --> src/interpreter/ast.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 109 | impl<'a> Value<'a> {
[INFO] [stdout]     | ------------------ method in this implementation
[INFO] [stdout] 110 |     fn try_call(&'a self, args: &'a List<Value<'a>>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expression` is never used
[INFO] [stdout]    --> src/interpreter/ast.rs:132:10
[INFO] [stdout]     |
[INFO] [stdout] 132 | pub enum Expression<'a> {
[INFO] [stdout]     |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Statement` is never used
[INFO] [stdout]    --> src/interpreter/ast.rs:140:10
[INFO] [stdout]     |
[INFO] [stdout] 140 | pub enum Statement<'a> {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Program` is never used
[INFO] [stdout]    --> src/interpreter/ast.rs:145:10
[INFO] [stdout]     |
[INFO] [stdout] 145 | pub type Program<'a> = List<Statement<'a>>;
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Number` is never used
[INFO] [stdout]  --> src/interpreter/data_structures.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Number {
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Name` is never used
[INFO] [stdout]   --> src/interpreter/data_structures.rs:39:10
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub type Name = String;
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_fraction_string` is never used
[INFO] [stdout]  --> src/interpreter/parser.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn parse_fraction_string<'a>(file: &str) -> Result<ast::Program<'a>, Error<Rule>> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `statement_parser` is never used
[INFO] [stdout]   --> src/interpreter/parser.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn statement_parser<'a>(pair: Pair<Rule>) -> Result<ast::Statement<'a>, Error<Rule>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `assignment_parser` is never used
[INFO] [stdout]   --> src/interpreter/parser.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn assignment_parser<'a>(pair: Pair<Rule>) -> Result<ast::Statement<'a>, Error<Rule>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expression_parser` is never used
[INFO] [stdout]   --> src/interpreter/parser.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn expression_parser<'a>(pair: Pair<Rule>) -> Result<ast::Statement<'a>, Error<Rule>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add2` is never used
[INFO] [stdout]  --> src/interpreter/builtins.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn add2<'a>(arg1: Value<'a>, arg2: &Value<'a>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]   --> src/interpreter/builtins.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn add<'a>(args: &List<Value<'a>>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ADD` is never used
[INFO] [stdout]   --> src/interpreter/builtins.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const ADD: Builtin<'static> = Builtin {
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.48s
[INFO] running `Command { std: "docker" "inspect" "435c8f86cc0373d3a072d8c6e5646f56ce9177292c07215ccb4460f55e1e8620", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "435c8f86cc0373d3a072d8c6e5646f56ce9177292c07215ccb4460f55e1e8620", kill_on_drop: false }`
[INFO] [stdout] 435c8f86cc0373d3a072d8c6e5646f56ce9177292c07215ccb4460f55e1e8620
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d67e7fe010f85de5e3ec98f0acaee4df880df704e2678421b63db6c734c5734e
[INFO] running `Command { std: "docker" "start" "-a" "d67e7fe010f85de5e3ec98f0acaee4df880df704e2678421b63db6c734c5734e", kill_on_drop: false }`
[INFO] [stderr]    Compiling fraction-interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/interpreter/ast.rs:93:19
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub func: &'a Fn (&List<Value<'a>>) -> Result<Value<'a>, RuntimeError>,
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[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/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] 93 |     pub func: &'a dyn Fn (&List<Value<'a>>) -> Result<Value<'a>, RuntimeError>,
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/interpreter/parser.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | /     match assignment_type.as_rule() {
[INFO] [stdout] 32 | |         Rule::var_assign => unimplemented!(),
[INFO] [stdout] 33 | |         Rule::func_assign => unimplemented!(),
[INFO] [stdout] 34 | |         _ => unreachable!(),
[INFO] [stdout] 35 | |     };
[INFO] [stdout]    | |_____- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 36 |
[INFO] [stdout] 37 |       unimplemented!();
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]    = note: this warning originates in the macro `unimplemented` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pair`
[INFO] [stdout]   --> src/interpreter/parser.rs:40:26
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn expression_parser<'a>(pair: Pair<Rule>) -> Result<ast::Statement<'a>, Error<Rule>> {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_pair`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Closure<'a>` is more private than the item `Value::Function::0`
[INFO] [stdout]    --> src/interpreter/ast.rs:105:14
[INFO] [stdout]     |
[INFO] [stdout] 105 |     Function(Closure<'a>),
[INFO] [stdout]     |              ^^^^^^^^^^^ field `Value::Function::0` is reachable at visibility `pub(in crate::interpreter)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `Closure<'a>` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/interpreter/ast.rs:64:1
[INFO] [stdout]     |
[INFO] [stdout]  64 | struct Closure<'a> {    
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RuntimeError` is never used
[INFO] [stdout]  --> src/interpreter/ast.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum RuntimeError {
[INFO] [stdout]   |          ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Environment` is never constructed
[INFO] [stdout]   --> src/interpreter/ast.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Environment<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get`, and `evaluate` are never used
[INFO] [stdout]   --> src/interpreter/ast.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl<'a> Environment<'a> {
[INFO] [stdout]    | ------------------------ associated items in this implementation
[INFO] [stdout] 24 |     pub fn new(parent: Option<Box<&'a Environment<'a>>>, defines: Vec<(&Name, &Value<'a>)>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     fn get(&self, name: &Name) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn evaluate(&self, expr: &'a Expression<'a>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Closure` is never constructed
[INFO] [stdout]   --> src/interpreter/ast.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | struct Closure<'a> {    
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `call` is never used
[INFO] [stdout]   --> src/interpreter/ast.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | impl<'a> Closure<'a> {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] 72 |     fn call(&'a self, args: &'a List<Value<'a>>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Builtin` is never constructed
[INFO] [stdout]   --> src/interpreter/ast.rs:91:12
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub struct Builtin<'a> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Value` is never used
[INFO] [stdout]   --> src/interpreter/ast.rs:99:10
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub enum Value<'a> {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `try_call` is never used
[INFO] [stdout]    --> src/interpreter/ast.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 109 | impl<'a> Value<'a> {
[INFO] [stdout]     | ------------------ method in this implementation
[INFO] [stdout] 110 |     fn try_call(&'a self, args: &'a List<Value<'a>>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expression` is never used
[INFO] [stdout]    --> src/interpreter/ast.rs:132:10
[INFO] [stdout]     |
[INFO] [stdout] 132 | pub enum Expression<'a> {
[INFO] [stdout]     |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Statement` is never used
[INFO] [stdout]    --> src/interpreter/ast.rs:140:10
[INFO] [stdout]     |
[INFO] [stdout] 140 | pub enum Statement<'a> {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Program` is never used
[INFO] [stdout]    --> src/interpreter/ast.rs:145:10
[INFO] [stdout]     |
[INFO] [stdout] 145 | pub type Program<'a> = List<Statement<'a>>;
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Number` is never used
[INFO] [stdout]  --> src/interpreter/data_structures.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Number {
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Name` is never used
[INFO] [stdout]   --> src/interpreter/data_structures.rs:39:10
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub type Name = String;
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_fraction_string` is never used
[INFO] [stdout]  --> src/interpreter/parser.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn parse_fraction_string<'a>(file: &str) -> Result<ast::Program<'a>, Error<Rule>> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `statement_parser` is never used
[INFO] [stdout]   --> src/interpreter/parser.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn statement_parser<'a>(pair: Pair<Rule>) -> Result<ast::Statement<'a>, Error<Rule>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `assignment_parser` is never used
[INFO] [stdout]   --> src/interpreter/parser.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn assignment_parser<'a>(pair: Pair<Rule>) -> Result<ast::Statement<'a>, Error<Rule>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expression_parser` is never used
[INFO] [stdout]   --> src/interpreter/parser.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn expression_parser<'a>(pair: Pair<Rule>) -> Result<ast::Statement<'a>, Error<Rule>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add2` is never used
[INFO] [stdout]  --> src/interpreter/builtins.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn add2<'a>(arg1: Value<'a>, arg2: &Value<'a>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]   --> src/interpreter/builtins.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn add<'a>(args: &List<Value<'a>>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ADD` is never used
[INFO] [stdout]   --> src/interpreter/builtins.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const ADD: Builtin<'static> = Builtin {
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "d67e7fe010f85de5e3ec98f0acaee4df880df704e2678421b63db6c734c5734e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d67e7fe010f85de5e3ec98f0acaee4df880df704e2678421b63db6c734c5734e", kill_on_drop: false }`
[INFO] [stdout] d67e7fe010f85de5e3ec98f0acaee4df880df704e2678421b63db6c734c5734e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c21f1b646e1142c631975beaa539a703734fac592571f2cc982a7534a5fa6108
[INFO] running `Command { std: "docker" "start" "-a" "c21f1b646e1142c631975beaa539a703734fac592571f2cc982a7534a5fa6108", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/interpreter/ast.rs:93:19
[INFO] [stderr]    |
[INFO] [stderr] 93 |     pub func: &'a Fn (&List<Value<'a>>) -> Result<Value<'a>, RuntimeError>,
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[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/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] 93 |     pub func: &'a dyn Fn (&List<Value<'a>>) -> Result<Value<'a>, RuntimeError>,
[INFO] [stderr]    |                   +++
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/interpreter/parser.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 31 | /     match assignment_type.as_rule() {
[INFO] [stderr] 32 | |         Rule::var_assign => unimplemented!(),
[INFO] [stderr] 33 | |         Rule::func_assign => unimplemented!(),
[INFO] [stderr] 34 | |         _ => unreachable!(),
[INFO] [stderr] 35 | |     };
[INFO] [stderr]    | |_____- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr] 36 |
[INFO] [stderr] 37 |       unimplemented!();
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr]    = note: this warning originates in the macro `unimplemented` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pair`
[INFO] [stderr]   --> src/interpreter/parser.rs:40:26
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn expression_parser<'a>(pair: Pair<Rule>) -> Result<ast::Statement<'a>, Error<Rule>> {
[INFO] [stderr]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_pair`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `Closure<'a>` is more private than the item `Value::Function::0`
[INFO] [stderr]    --> src/interpreter/ast.rs:105:14
[INFO] [stderr]     |
[INFO] [stderr] 105 |     Function(Closure<'a>),
[INFO] [stderr]     |              ^^^^^^^^^^^ field `Value::Function::0` is reachable at visibility `pub(in crate::interpreter)`
[INFO] [stderr]     |
[INFO] [stderr] note: but type `Closure<'a>` is only usable at visibility `pub(self)`
[INFO] [stderr]    --> src/interpreter/ast.rs:64:1
[INFO] [stderr]     |
[INFO] [stderr]  64 | struct Closure<'a> {    
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `RuntimeError` is never used
[INFO] [stderr]  --> src/interpreter/ast.rs:7:10
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub enum RuntimeError {
[INFO] [stderr]   |          ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Environment` is never constructed
[INFO] [stderr]   --> src/interpreter/ast.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub struct Environment<'a> {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `get`, and `evaluate` are never used
[INFO] [stderr]   --> src/interpreter/ast.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 23 | impl<'a> Environment<'a> {
[INFO] [stderr]    | ------------------------ associated items in this implementation
[INFO] [stderr] 24 |     pub fn new(parent: Option<Box<&'a Environment<'a>>>, defines: Vec<(&Name, &Value<'a>)>) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 36 |     fn get(&self, name: &Name) -> Result<Value<'a>, RuntimeError> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 48 |     fn evaluate(&self, expr: &'a Expression<'a>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Closure` is never constructed
[INFO] [stderr]   --> src/interpreter/ast.rs:64:8
[INFO] [stderr]    |
[INFO] [stderr] 64 | struct Closure<'a> {    
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `call` is never used
[INFO] [stderr]   --> src/interpreter/ast.rs:72:8
[INFO] [stderr]    |
[INFO] [stderr] 71 | impl<'a> Closure<'a> {
[INFO] [stderr]    | -------------------- method in this implementation
[INFO] [stderr] 72 |     fn call(&'a self, args: &'a List<Value<'a>>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Builtin` is never constructed
[INFO] [stderr]   --> src/interpreter/ast.rs:91:12
[INFO] [stderr]    |
[INFO] [stderr] 91 | pub struct Builtin<'a> {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Value` is never used
[INFO] [stderr]   --> src/interpreter/ast.rs:99:10
[INFO] [stderr]    |
[INFO] [stderr] 99 | pub enum Value<'a> {
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `try_call` is never used
[INFO] [stderr]    --> src/interpreter/ast.rs:110:8
[INFO] [stderr]     |
[INFO] [stderr] 109 | impl<'a> Value<'a> {
[INFO] [stderr]     | ------------------ method in this implementation
[INFO] [stderr] 110 |     fn try_call(&'a self, args: &'a List<Value<'a>>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Expression` is never used
[INFO] [stderr]    --> src/interpreter/ast.rs:132:10
[INFO] [stderr]     |
[INFO] [stderr] 132 | pub enum Expression<'a> {
[INFO] [stderr]     |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Statement` is never used
[INFO] [stderr]    --> src/interpreter/ast.rs:140:10
[INFO] [stderr]     |
[INFO] [stderr] 140 | pub enum Statement<'a> {
[INFO] [stderr]     |          ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `Program` is never used
[INFO] [stderr]    --> src/interpreter/ast.rs:145:10
[INFO] [stderr]     |
[INFO] [stderr] 145 | pub type Program<'a> = List<Statement<'a>>;
[INFO] [stderr]     |          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Number` is never used
[INFO] [stderr]  --> src/interpreter/data_structures.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub enum Number {
[INFO] [stderr]   |          ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `Name` is never used
[INFO] [stderr]   --> src/interpreter/data_structures.rs:39:10
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub type Name = String;
[INFO] [stderr]    |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `parse_fraction_string` is never used
[INFO] [stderr]  --> src/interpreter/parser.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn parse_fraction_string<'a>(file: &str) -> Result<ast::Program<'a>, Error<Rule>> {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `statement_parser` is never used
[INFO] [stderr]   --> src/interpreter/parser.rs:21:4
[INFO] [stderr]    |
[INFO] [stderr] 21 | fn statement_parser<'a>(pair: Pair<Rule>) -> Result<ast::Statement<'a>, Error<Rule>> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `assignment_parser` is never used
[INFO] [stderr]   --> src/interpreter/parser.rs:27:4
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn assignment_parser<'a>(pair: Pair<Rule>) -> Result<ast::Statement<'a>, Error<Rule>> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `expression_parser` is never used
[INFO] [stderr]   --> src/interpreter/parser.rs:40:4
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn expression_parser<'a>(pair: Pair<Rule>) -> Result<ast::Statement<'a>, Error<Rule>> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `add2` is never used
[INFO] [stderr]  --> src/interpreter/builtins.rs:5:4
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn add2<'a>(arg1: Value<'a>, arg2: &Value<'a>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stderr]   |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `add` is never used
[INFO] [stderr]   --> src/interpreter/builtins.rs:13:4
[INFO] [stderr]    |
[INFO] [stderr] 13 | fn add<'a>(args: &List<Value<'a>>) -> Result<Value<'a>, RuntimeError> {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `ADD` is never used
[INFO] [stderr]   --> src/interpreter/builtins.rs:17:7
[INFO] [stderr]    |
[INFO] [stderr] 17 | const ADD: Builtin<'static> = Builtin {
[INFO] [stderr]    |       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `fraction-interpreter` (bin "fraction-interpreter" test) generated 24 warnings (run `cargo fix --bin "fraction-interpreter" -p fraction-interpreter --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/fraction_interpreter-a056de2dd52c712e)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test interpreter::test::name ... FAILED
[INFO] [stdout] test interpreter::parser::test::test ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- interpreter::test::name stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'interpreter::test::name' (26) panicked at src/interpreter/mod.rs:10:9:
[INFO] [stdout] not implemented
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x64632c050a52 - std[3f03f8b59f91bef1]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x64632c050a52 - std[3f03f8b59f91bef1]::backtrace_rs::backtrace::trace_unsynchronized::<std[3f03f8b59f91bef1]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x64632c050a52 - std[3f03f8b59f91bef1]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x64632c050a52 - <<std[3f03f8b59f91bef1]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[585f66e14d78f9ba]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x64632c06546a - <core[585f66e14d78f9ba]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x64632c06546a - core[585f66e14d78f9ba]::fmt::write
[INFO] [stdout]    6:     0x64632c055906 - std[3f03f8b59f91bef1]::io::default_write_fmt::<alloc[15e7b27aba85d2e2]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x64632c055906 - <alloc[15e7b27aba85d2e2]::vec::Vec<u8> as std[3f03f8b59f91bef1]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x64632c02f1ef - <std[3f03f8b59f91bef1]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x64632c02f1ef - std[3f03f8b59f91bef1]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x64632c048d89 - std[3f03f8b59f91bef1]::panicking::default_hook
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x64632bfdedfe - <alloc[15e7b27aba85d2e2]::boxed::Box<dyn for<'a, 'b> core[585f66e14d78f9ba]::ops::function::Fn<(&'a std[3f03f8b59f91bef1]::panic::PanicHookInfo<'b>,), Output = ()> + core[585f66e14d78f9ba]::marker::Sync + core[585f66e14d78f9ba]::marker::Send> as core[585f66e14d78f9ba]::ops::function::Fn<(&std[3f03f8b59f91bef1]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x64632bfdedfe - test[30224e0cb089acd2]::test_main_with_exit_callback::<test[30224e0cb089acd2]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x64632c048f42 - <alloc[15e7b27aba85d2e2]::boxed::Box<dyn for<'a, 'b> core[585f66e14d78f9ba]::ops::function::Fn<(&'a std[3f03f8b59f91bef1]::panic::PanicHookInfo<'b>,), Output = ()> + core[585f66e14d78f9ba]::marker::Sync + core[585f66e14d78f9ba]::marker::Send> as core[585f66e14d78f9ba]::ops::function::Fn<(&std[3f03f8b59f91bef1]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x64632c048f42 - std[3f03f8b59f91bef1]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x64632c02f2da - std[3f03f8b59f91bef1]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:691:13
[INFO] [stdout]   16:     0x64632c024469 - std[3f03f8b59f91bef1]::sys::backtrace::__rust_end_short_backtrace::<std[3f03f8b59f91bef1]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x64632c0300fd - __rustc[caa99d26c7bae192]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x64632c065b3c - core[585f66e14d78f9ba]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x64632c065b02 - core[585f66e14d78f9ba]::panicking::panic
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panicking.rs:150:5
[INFO] [stdout]   20:     0x64632bfcbdfa - fraction_interpreter[3cff22896e670426]::interpreter::test::name
[INFO] [stdout]                                at /opt/rustwide/workdir/src/interpreter/mod.rs:10:9
[INFO] [stdout]   21:     0x64632bfcb6c7 - fraction_interpreter[3cff22896e670426]::interpreter::test::name::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/interpreter/mod.rs:9:14
[INFO] [stdout]   22:     0x64632bfd0416 - <fraction_interpreter[3cff22896e670426]::interpreter::test::name::{closure#0} as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x64632bfd31ab - <fn() -> core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x64632bfd31ab - test[30224e0cb089acd2]::__rust_begin_short_backtrace::<core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>, fn() -> core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:663:18
[INFO] [stdout]   25:     0x64632bfdfa0a - test[30224e0cb089acd2]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:686:74
[INFO] [stdout]   26:     0x64632bfdfa0a - <core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   27:     0x64632bfdfa0a - std[3f03f8b59f91bef1]::panicking::catch_unwind::do_call::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}>, core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:581:40
[INFO] [stdout]   28:     0x64632bfdfa0a - std[3f03f8b59f91bef1]::panicking::catch_unwind::<core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>, core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:544:19
[INFO] [stdout]   29:     0x64632bfdfa0a - std[3f03f8b59f91bef1]::panic::catch_unwind::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}>, core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x64632bfdfa0a - test[30224e0cb089acd2]::run_test_in_process
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:686:27
[INFO] [stdout]   31:     0x64632bfdfa0a - test[30224e0cb089acd2]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:607:43
[INFO] [stdout]   32:     0x64632bfd9ed4 - test[30224e0cb089acd2]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:637:41
[INFO] [stdout]   33:     0x64632bfd9ed4 - std[3f03f8b59f91bef1]::sys::backtrace::__rust_begin_short_backtrace::<test[30224e0cb089acd2]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   34:     0x64632bfe2502 - std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked::<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   35:     0x64632bfe2502 - <core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   36:     0x64632bfe2502 - std[3f03f8b59f91bef1]::panicking::catch_unwind::do_call::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:581:40
[INFO] [stdout]   37:     0x64632bfe2502 - std[3f03f8b59f91bef1]::panicking::catch_unwind::<(), core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:544:19
[INFO] [stdout]   38:     0x64632bfe2502 - std[3f03f8b59f91bef1]::panic::catch_unwind::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x64632bfe2502 - std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked::<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   40:     0x64632bfe2502 - <std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1} as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x64632c0502ff - <alloc[15e7b27aba85d2e2]::boxed::Box<dyn core[585f66e14d78f9ba]::ops::function::FnOnce<(), Output = ()> + core[585f66e14d78f9ba]::marker::Send> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   42:     0x64632c0502ff - <std[3f03f8b59f91bef1]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   43:     0x7fb54edacaa4 - <unknown>
[INFO] [stdout]   44:     0x7fb54ee39a64 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- interpreter::parser::test::test stdout ----
[INFO] [stdout] Ok(
[INFO] [stdout]     [
[INFO] [stdout]         Pair {
[INFO] [stdout]             rule: program,
[INFO] [stdout]             span: Span {
[INFO] [stdout]                 str: "foo(a, 2)",
[INFO] [stdout]                 start: 0,
[INFO] [stdout]                 end: 9,
[INFO] [stdout]             },
[INFO] [stdout]             inner: [
[INFO] [stdout]                 Pair {
[INFO] [stdout]                     rule: statement,
[INFO] [stdout]                     span: Span {
[INFO] [stdout]                         str: "foo(a, 2)",
[INFO] [stdout]                         start: 0,
[INFO] [stdout]                         end: 9,
[INFO] [stdout]                     },
[INFO] [stdout]                     inner: [
[INFO] [stdout]                         Pair {
[INFO] [stdout]                             rule: expr,
[INFO] [stdout]                             span: Span {
[INFO] [stdout]                                 str: "foo(a, 2)",
[INFO] [stdout]                                 start: 0,
[INFO] [stdout]                                 end: 9,
[INFO] [stdout]                             },
[INFO] [stdout]                             inner: [
[INFO] [stdout]                                 Pair {
[INFO] [stdout]                                     rule: funcapply,
[INFO] [stdout]                                     span: Span {
[INFO] [stdout]                                         str: "foo(a, 2)",
[INFO] [stdout]                                         start: 0,
[INFO] [stdout]                                         end: 9,
[INFO] [stdout]                                     },
[INFO] [stdout]                                     inner: [
[INFO] [stdout]                                         Pair {
[INFO] [stdout]                                             rule: varname,
[INFO] [stdout]                                             span: Span {
[INFO] [stdout]                                                 str: "foo",
[INFO] [stdout]                                                 start: 0,
[INFO] [stdout]                                                 end: 3,
[INFO] [stdout]                                             },
[INFO] [stdout]                                             inner: [],
[INFO] [stdout]                                         },
[INFO] [stdout]                                         Pair {
[INFO] [stdout]                                             rule: apply_list,
[INFO] [stdout]                                             span: Span {
[INFO] [stdout]                                                 str: "(a, 2)",
[INFO] [stdout]                                                 start: 3,
[INFO] [stdout]                                                 end: 9,
[INFO] [stdout]                                             },
[INFO] [stdout]                                             inner: [
[INFO] [stdout]                                                 Pair {
[INFO] [stdout]                                                     rule: exprlist,
[INFO] [stdout]                                                     span: Span {
[INFO] [stdout]                                                         str: "a, 2",
[INFO] [stdout]                                                         start: 4,
[INFO] [stdout]                                                         end: 8,
[INFO] [stdout]                                                     },
[INFO] [stdout]                                                     inner: [
[INFO] [stdout]                                                         Pair {
[INFO] [stdout]                                                             rule: expr,
[INFO] [stdout]                                                             span: Span {
[INFO] [stdout]                                                                 str: "a",
[INFO] [stdout]                                                                 start: 4,
[INFO] [stdout]                                                                 end: 5,
[INFO] [stdout]                                                             },
[INFO] [stdout]                                                             inner: [
[INFO] [stdout]                                                                 Pair {
[INFO] [stdout]                                                                     rule: bin_operator_expr,
[INFO] [stdout]                                                                     span: Span {
[INFO] [stdout]                                                                         str: "a",
[INFO] [stdout]                                                                         start: 4,
[INFO] [stdout]                                                                         end: 5,
[INFO] [stdout]                                                                     },
[INFO] [stdout]                                                                     inner: [
[INFO] [stdout]                                                                         Pair {
[INFO] [stdout]                                                                             rule: unary_operator_expr,
[INFO] [stdout]                                                                             span: Span {
[INFO] [stdout]                                                                                 str: "a",
[INFO] [stdout]                                                                                 start: 4,
[INFO] [stdout]                                                                                 end: 5,
[INFO] [stdout]                                                                             },
[INFO] [stdout]                                                                             inner: [
[INFO] [stdout]                                                                                 Pair {
[INFO] [stdout]                                                                                     rule: nested_expr,
[INFO] [stdout]                                                                                     span: Span {
[INFO] [stdout]                                                                                         str: "a",
[INFO] [stdout]                                                                                         start: 4,
[INFO] [stdout]                                                                                         end: 5,
[INFO] [stdout]                                                                                     },
[INFO] [stdout]                                                                                     inner: [
[INFO] [stdout]                                                                                         Pair {
[INFO] [stdout]                                                                                             rule: atom,
[INFO] [stdout]                                                                                             span: Span {
[INFO] [stdout]                                                                                                 str: "a",
[INFO] [stdout]                                                                                                 start: 4,
[INFO] [stdout]                                                                                                 end: 5,
[INFO] [stdout]                                                                                             },
[INFO] [stdout]                                                                                             inner: [],
[INFO] [stdout]                                                                                         },
[INFO] [stdout]                                                                                     ],
[INFO] [stdout]                                                                                 },
[INFO] [stdout]                                                                             ],
[INFO] [stdout]                                                                         },
[INFO] [stdout]                                                                     ],
[INFO] [stdout]                                                                 },
[INFO] [stdout]                                                             ],
[INFO] [stdout]                                                         },
[INFO] [stdout]                                                         Pair {
[INFO] [stdout]                                                             rule: expr,
[INFO] [stdout]                                                             span: Span {
[INFO] [stdout]                                                                 str: "2",
[INFO] [stdout]                                                                 start: 7,
[INFO] [stdout]                                                                 end: 8,
[INFO] [stdout]                                                             },
[INFO] [stdout]                                                             inner: [
[INFO] [stdout]                                                                 Pair {
[INFO] [stdout]                                                                     rule: bin_operator_expr,
[INFO] [stdout]                                                                     span: Span {
[INFO] [stdout]                                                                         str: "2",
[INFO] [stdout]                                                                         start: 7,
[INFO] [stdout]                                                                         end: 8,
[INFO] [stdout]                                                                     },
[INFO] [stdout]                                                                     inner: [
[INFO] [stdout]                                                                         Pair {
[INFO] [stdout]                                                                             rule: unary_operator_expr,
[INFO] [stdout]                                                                             span: Span {
[INFO] [stdout]                                                                                 str: "2",
[INFO] [stdout]                                                                                 start: 7,
[INFO] [stdout]                                                                                 end: 8,
[INFO] [stdout]                                                                             },
[INFO] [stdout]                                                                             inner: [
[INFO] [stdout]                                                                                 Pair {
[INFO] [stdout]                                                                                     rule: nested_expr,
[INFO] [stdout]                                                                                     span: Span {
[INFO] [stdout]                                                                                         str: "2",
[INFO] [stdout]                                                                                         start: 7,
[INFO] [stdout]                                                                                         end: 8,
[INFO] [stdout]                                                                                     },
[INFO] [stdout]                                                                                     inner: [
[INFO] [stdout]                                                                                         Pair {
[INFO] [stdout]                                                                                             rule: atom,
[INFO] [stdout]                                                                                             span: Span {
[INFO] [stdout]                                                                                                 str: "2",
[INFO] [stdout]                                                                                                 start: 7,
[INFO] [stdout]                                                                                                 end: 8,
[INFO] [stdout]                                                                                             },
[INFO] [stdout]                                                                                             inner: [
[INFO] [stdout]                                                                                                 Pair {
[INFO] [stdout]                                                                                                     rule: number,
[INFO] [stdout]                                                                                                     span: Span {
[INFO] [stdout]                                                                                                         str: "2",
[INFO] [stdout]                                                                                                         start: 7,
[INFO] [stdout]                                                                                                         end: 8,
[INFO] [stdout]                                                                                                     },
[INFO] [stdout]                                                                                                     inner: [
[INFO] [stdout]                                                                                                         Pair {
[INFO] [stdout]                                                                                                             rule: integer,
[INFO] [stdout]                                                                                                             span: Span {
[INFO] [stdout]                                                                                                                 str: "2",
[INFO] [stdout]                                                                                                                 start: 7,
[INFO] [stdout]                                                                                                                 end: 8,
[INFO] [stdout]                                                                                                             },
[INFO] [stdout]                                                                                                             inner: [],
[INFO] [stdout]                                                                                                         },
[INFO] [stdout]                                                                                                     ],
[INFO] [stdout]                                                                                                 },
[INFO] [stdout]                                                                                             ],
[INFO] [stdout]                                                                                         },
[INFO] [stdout]                                                                                     ],
[INFO] [stdout]                                                                                 },
[INFO] [stdout]                                                                             ],
[INFO] [stdout]                                                                         },
[INFO] [stdout]                                                                     ],
[INFO] [stdout]                                                                 },
[INFO] [stdout]                                                             ],
[INFO] [stdout]                                                         },
[INFO] [stdout]                                                     ],
[INFO] [stdout]                                                 },
[INFO] [stdout]                                             ],
[INFO] [stdout]                                         },
[INFO] [stdout]                                     ],
[INFO] [stdout]                                 },
[INFO] [stdout]                             ],
[INFO] [stdout]                         },
[INFO] [stdout]                     ],
[INFO] [stdout]                 },
[INFO] [stdout]             ],
[INFO] [stdout]         },
[INFO] [stdout]     ],
[INFO] [stdout] )
[INFO] [stdout] Ok(
[INFO] [stdout]     [
[INFO] [stdout]         Pair {
[INFO] [stdout]             rule: program,
[INFO] [stdout]             span: Span {
[INFO] [stdout]                 str: "a + b",
[INFO] [stdout]                 start: 0,
[INFO] [stdout]                 end: 5,
[INFO] [stdout]             },
[INFO] [stdout]             inner: [
[INFO] [stdout]                 Pair {
[INFO] [stdout]                     rule: statement,
[INFO] [stdout]                     span: Span {
[INFO] [stdout]                         str: "a + b",
[INFO] [stdout]                         start: 0,
[INFO] [stdout]                         end: 5,
[INFO] [stdout]                     },
[INFO] [stdout]                     inner: [
[INFO] [stdout]                         Pair {
[INFO] [stdout]                             rule: expr,
[INFO] [stdout]                             span: Span {
[INFO] [stdout]                                 str: "a + b",
[INFO] [stdout]                                 start: 0,
[INFO] [stdout]                                 end: 5,
[INFO] [stdout]                             },
[INFO] [stdout]                             inner: [
[INFO] [stdout]                                 Pair {
[INFO] [stdout]                                     rule: bin_operator_expr,
[INFO] [stdout]                                     span: Span {
[INFO] [stdout]                                         str: "a + b",
[INFO] [stdout]                                         start: 0,
[INFO] [stdout]                                         end: 5,
[INFO] [stdout]                                     },
[INFO] [stdout]                                     inner: [
[INFO] [stdout]                                         Pair {
[INFO] [stdout]                                             rule: unary_operator_expr,
[INFO] [stdout]                                             span: Span {
[INFO] [stdout]                                                 str: "a",
[INFO] [stdout]                                                 start: 0,
[INFO] [stdout]                                                 end: 1,
[INFO] [stdout]                                             },
[INFO] [stdout]                                             inner: [
[INFO] [stdout]                                                 Pair {
[INFO] [stdout]                                                     rule: nested_expr,
[INFO] [stdout]                                                     span: Span {
[INFO] [stdout]                                                         str: "a",
[INFO] [stdout]                                                         start: 0,
[INFO] [stdout]                                                         end: 1,
[INFO] [stdout]                                                     },
[INFO] [stdout]                                                     inner: [
[INFO] [stdout]                                                         Pair {
[INFO] [stdout]                                                             rule: atom,
[INFO] [stdout]                                                             span: Span {
[INFO] [stdout]                                                                 str: "a",
[INFO] [stdout]                                                                 start: 0,
[INFO] [stdout]                                                                 end: 1,
[INFO] [stdout]                                                             },
[INFO] [stdout]                                                             inner: [],
[INFO] [stdout]                                                         },
[INFO] [stdout]                                                     ],
[INFO] [stdout]                                                 },
[INFO] [stdout]                                             ],
[INFO] [stdout]                                         },
[INFO] [stdout]                                         Pair {
[INFO] [stdout]                                             rule: bin_operator,
[INFO] [stdout]                                             span: Span {
[INFO] [stdout]                                                 str: "+",
[INFO] [stdout]                                                 start: 2,
[INFO] [stdout]                                                 end: 3,
[INFO] [stdout]                                             },
[INFO] [stdout]                                             inner: [],
[INFO] [stdout]                                         },
[INFO] [stdout]                                         Pair {
[INFO] [stdout]                                             rule: bin_operator_expr,
[INFO] [stdout]                                             span: Span {
[INFO] [stdout]                                                 str: "b",
[INFO] [stdout]                                                 start: 4,
[INFO] [stdout]                                                 end: 5,
[INFO] [stdout]                                             },
[INFO] [stdout]                                             inner: [
[INFO] [stdout]                                                 Pair {
[INFO] [stdout]                                                     rule: unary_operator_expr,
[INFO] [stdout]                                                     span: Span {
[INFO] [stdout]                                                         str: "b",
[INFO] [stdout]                                                         start: 4,
[INFO] [stdout]                                                         end: 5,
[INFO] [stdout]                                                     },
[INFO] [stdout]                                                     inner: [
[INFO] [stdout]                                                         Pair {
[INFO] [stdout]                                                             rule: nested_expr,
[INFO] [stdout]                                                             span: Span {
[INFO] [stdout]                                                                 str: "b",
[INFO] [stdout]                                                                 start: 4,
[INFO] [stdout]                                                                 end: 5,
[INFO] [stdout]                                                             },
[INFO] [stdout]                                                             inner: [
[INFO] [stdout]                                                                 Pair {
[INFO] [stdout]                                                                     rule: atom,
[INFO] [stdout]                                                                     span: Span {
[INFO] [stdout]                                                                         str: "b",
[INFO] [stdout]                                                                         start: 4,
[INFO] [stdout]                                                                         end: 5,
[INFO] [stdout]                                                                     },
[INFO] [stdout]                                                                     inner: [],
[INFO] [stdout]                                                                 },
[INFO] [stdout]                                                             ],
[INFO] [stdout]                                                         },
[INFO] [stdout]                                                     ],
[INFO] [stdout]                                                 },
[INFO] [stdout]                                             ],
[INFO] [stdout]                                         },
[INFO] [stdout]                                     ],
[INFO] [stdout]                                 },
[INFO] [stdout]                             ],
[INFO] [stdout]                         },
[INFO] [stdout]                     ],
[INFO] [stdout]                 },
[INFO] [stdout]             ],
[INFO] [stdout]         },
[INFO] [stdout]     ],
[INFO] [stdout] )
[INFO] [stdout] Ok(
[INFO] [stdout]     [
[INFO] [stdout]         Pair {
[INFO] [stdout]             rule: program,
[INFO] [stdout]             span: Span {
[INFO] [stdout]                 str: "'b",
[INFO] [stdout]                 start: 0,
[INFO] [stdout]                 end: 2,
[INFO] [stdout]             },
[INFO] [stdout]             inner: [
[INFO] [stdout]                 Pair {
[INFO] [stdout]                     rule: statement,
[INFO] [stdout]                     span: Span {
[INFO] [stdout]                         str: "'b",
[INFO] [stdout]                         start: 0,
[INFO] [stdout]                         end: 2,
[INFO] [stdout]                     },
[INFO] [stdout]                     inner: [
[INFO] [stdout]                         Pair {
[INFO] [stdout]                             rule: expr,
[INFO] [stdout]                             span: Span {
[INFO] [stdout]                                 str: "'b",
[INFO] [stdout]                                 start: 0,
[INFO] [stdout]                                 end: 2,
[INFO] [stdout]                             },
[INFO] [stdout]                             inner: [
[INFO] [stdout]                                 Pair {
[INFO] [stdout]                                     rule: bin_operator_expr,
[INFO] [stdout]                                     span: Span {
[INFO] [stdout]                                         str: "'b",
[INFO] [stdout]                                         start: 0,
[INFO] [stdout]                                         end: 2,
[INFO] [stdout]                                     },
[INFO] [stdout]                                     inner: [
[INFO] [stdout]                                         Pair {
[INFO] [stdout]                                             rule: unary_operator_expr,
[INFO] [stdout]                                             span: Span {
[INFO] [stdout]                                                 str: "'b",
[INFO] [stdout]                                                 start: 0,
[INFO] [stdout]                                                 end: 2,
[INFO] [stdout]                                             },
[INFO] [stdout]                                             inner: [
[INFO] [stdout]                                                 Pair {
[INFO] [stdout]                                                     rule: unary_operator,
[INFO] [stdout]                                                     span: Span {
[INFO] [stdout]                                                         str: "'",
[INFO] [stdout]                                                         start: 0,
[INFO] [stdout]                                                         end: 1,
[INFO] [stdout]                                                     },
[INFO] [stdout]                                                     inner: [],
[INFO] [stdout]                                                 },
[INFO] [stdout]                                                 Pair {
[INFO] [stdout]                                                     rule: nested_expr,
[INFO] [stdout]                                                     span: Span {
[INFO] [stdout]                                                         str: "b",
[INFO] [stdout]                                                         start: 1,
[INFO] [stdout]                                                         end: 2,
[INFO] [stdout]                                                     },
[INFO] [stdout]                                                     inner: [
[INFO] [stdout]                                                         Pair {
[INFO] [stdout]                                                             rule: atom,
[INFO] [stdout]                                                             span: Span {
[INFO] [stdout]                                                                 str: "b",
[INFO] [stdout]                                                                 start: 1,
[INFO] [stdout]                                                                 end: 2,
[INFO] [stdout]                                                             },
[INFO] [stdout]                                                             inner: [],
[INFO] [stdout]                                                         },
[INFO] [stdout]                                                     ],
[INFO] [stdout]                                                 },
[INFO] [stdout]                                             ],
[INFO] [stdout]                                         },
[INFO] [stdout]                                     ],
[INFO] [stdout]                                 },
[INFO] [stdout]                             ],
[INFO] [stdout]                         },
[INFO] [stdout]                     ],
[INFO] [stdout]                 },
[INFO] [stdout]             ],
[INFO] [stdout]         },
[INFO] [stdout]     ],
[INFO] [stdout] )
[INFO] [stdout] Ok(
[INFO] [stdout]     [
[INFO] [stdout]         Pair {
[INFO] [stdout]             rule: program,
[INFO] [stdout]             span: Span {
[INFO] [stdout]                 str: "(a, b) -> a",
[INFO] [stdout]                 start: 0,
[INFO] [stdout]                 end: 11,
[INFO] [stdout]             },
[INFO] [stdout]             inner: [
[INFO] [stdout]                 Pair {
[INFO] [stdout]                     rule: statement,
[INFO] [stdout]                     span: Span {
[INFO] [stdout]                         str: "(a, b) -> a",
[INFO] [stdout]                         start: 0,
[INFO] [stdout]                         end: 11,
[INFO] [stdout]                     },
[INFO] [stdout]                     inner: [
[INFO] [stdout]                         Pair {
[INFO] [stdout]                             rule: expr,
[INFO] [stdout]                             span: Span {
[INFO] [stdout]                                 str: "(a, b) -> a",
[INFO] [stdout]                                 start: 0,
[INFO] [stdout]                                 end: 11,
[INFO] [stdout]                             },
[INFO] [stdout]                             inner: [
[INFO] [stdout]                                 Pair {
[INFO] [stdout]                                     rule: lambda,
[INFO] [stdout]                                     span: Span {
[INFO] [stdout]                                         str: "(a, b) -> a",
[INFO] [stdout]                                         start: 0,
[INFO] [stdout]                                         end: 11,
[INFO] [stdout]                                     },
[INFO] [stdout]                                     inner: [
[INFO] [stdout]                                         Pair {
[INFO] [stdout]                                             rule: args_list,
[INFO] [stdout]                                             span: Span {
[INFO] [stdout]                                                 str: "(a, b)",
[INFO] [stdout]                                                 start: 0,
[INFO] [stdout]                                                 end: 6,
[INFO] [stdout]                                             },
[INFO] [stdout]                                             inner: [
[INFO] [stdout]                                                 Pair {
[INFO] [stdout]                                                     rule: exprlist,
[INFO] [stdout]                                                     span: Span {
[INFO] [stdout]                                                         str: "a, b",
[INFO] [stdout]                                                         start: 1,
[INFO] [stdout]                                                         end: 5,
[INFO] [stdout]                                                     },
[INFO] [stdout]                                                     inner: [
[INFO] [stdout]                                                         Pair {
[INFO] [stdout]                                                             rule: expr,
[INFO] [stdout]                                                             span: Span {
[INFO] [stdout]                                                                 str: "a",
[INFO] [stdout]                                                                 start: 1,
[INFO] [stdout]                                                                 end: 2,
[INFO] [stdout]                                                             },
[INFO] [stdout]                                                             inner: [
[INFO] [stdout]                                                                 Pair {
[INFO] [stdout]                                                                     rule: bin_operator_expr,
[INFO] [stdout]                                                                     span: Span {
[INFO] [stdout]                                                                         str: "a",
[INFO] [stdout]                                                                         start: 1,
[INFO] [stdout]                                                                         end: 2,
[INFO] [stdout]                                                                     },
[INFO] [stdout]                                                                     inner: [
[INFO] [stdout]                                                                         Pair {
[INFO] [stdout]                                                                             rule: unary_operator_expr,
[INFO] [stdout]                                                                             span: Span {
[INFO] [stdout]                                                                                 str: "a",
[INFO] [stdout]                                                                                 start: 1,
[INFO] [stdout]                                                                                 end: 2,
[INFO] [stdout]                                                                             },
[INFO] [stdout]                                                                             inner: [
[INFO] [stdout]                                                                                 Pair {
[INFO] [stdout]                                                                                     rule: nested_expr,
[INFO] [stdout]                                                                                     span: Span {
[INFO] [stdout]                                                                                         str: "a",
[INFO] [stdout]                                                                                         start: 1,
[INFO] [stdout]                                                                                         end: 2,
[INFO] [stdout]                                                                                     },
[INFO] [stdout]                                                                                     inner: [
[INFO] [stdout]                                                                                         Pair {
[INFO] [stdout]                                                                                             rule: atom,
[INFO] [stdout]                                                                                             span: Span {
[INFO] [stdout]                                                                                                 str: "a",
[INFO] [stdout]                                                                                                 start: 1,
[INFO] [stdout]                                                                                                 end: 2,
[INFO] [stdout]                                                                                             },
[INFO] [stdout]                                                                                             inner: [],
[INFO] [stdout]                                                                                         },
[INFO] [stdout]                                                                                     ],
[INFO] [stdout]                                                                                 },
[INFO] [stdout]                                                                             ],
[INFO] [stdout]                                                                         },
[INFO] [stdout]                                                                     ],
[INFO] [stdout]                                                                 },
[INFO] [stdout]                                                             ],
[INFO] [stdout]                                                         },
[INFO] [stdout]                                                         Pair {
[INFO] [stdout]                                                             rule: expr,
[INFO] [stdout]                                                             span: Span {
[INFO] [stdout]                                                                 str: "b",
[INFO] [stdout]                                                                 start: 4,
[INFO] [stdout]                                                                 end: 5,
[INFO] [stdout]                                                             },
[INFO] [stdout]                                                             inner: [
[INFO] [stdout]                                                                 Pair {
[INFO] [stdout]                                                                     rule: bin_operator_expr,
[INFO] [stdout]                                                                     span: Span {
[INFO] [stdout]                                                                         str: "b",
[INFO] [stdout]                                                                         start: 4,
[INFO] [stdout]                                                                         end: 5,
[INFO] [stdout]                                                                     },
[INFO] [stdout]                                                                     inner: [
[INFO] [stdout]                                                                         Pair {
[INFO] [stdout]                                                                             rule: unary_operator_expr,
[INFO] [stdout]                                                                             span: Span {
[INFO] [stdout]                                                                                 str: "b",
[INFO] [stdout]                                                                                 start: 4,
[INFO] [stdout]                                                                                 end: 5,
[INFO] [stdout]                                                                             },
[INFO] [stdout]                                                                             inner: [
[INFO] [stdout]                                                                                 Pair {
[INFO] [stdout]                                                                                     rule: nested_expr,
[INFO] [stdout]                                                                                     span: Span {
[INFO] [stdout]                                                                                         str: "b",
[INFO] [stdout]                                                                                         start: 4,
[INFO] [stdout]                                                                                         end: 5,
[INFO] [stdout]                                                                                     },
[INFO] [stdout]                                                                                     inner: [
[INFO] [stdout]                                                                                         Pair {
[INFO] [stdout]                                                                                             rule: atom,
[INFO] [stdout]                                                                                             span: Span {
[INFO] [stdout]                                                                                                 str: "b",
[INFO] [stdout]                                                                                                 start: 4,
[INFO] [stdout]                                                                                                 end: 5,
[INFO] [stdout]                                                                                             },
[INFO] [stdout]                                                                                             inner: [],
[INFO] [stdout]                                                                                         },
[INFO] [stdout]                                                                                     ],
[INFO] [stdout]                                                                                 },
[INFO] [stdout]                                                                             ],
[INFO] [stdout]                                                                         },
[INFO] [stdout]                                                                     ],
[INFO] [stdout]                                                                 },
[INFO] [stdout]                                                             ],
[INFO] [stdout]                                                         },
[INFO] [stdout]                                                     ],
[INFO] [stdout]                                                 },
[INFO] [stdout]                                             ],
[INFO] [stdout]                                         },
[INFO] [stdout]                                         Pair {
[INFO] [stdout]                                             rule: expr,
[INFO] [stdout]                                             span: Span {
[INFO] [stdout]                                                 str: "a",
[INFO] [stdout]                                                 start: 10,
[INFO] [stdout]                                                 end: 11,
[INFO] [stdout]                                             },
[INFO] [stdout]                                             inner: [
[INFO] [stdout]                                                 Pair {
[INFO] [stdout]                                                     rule: bin_operator_expr,
[INFO] [stdout]                                                     span: Span {
[INFO] [stdout]                                                         str: "a",
[INFO] [stdout]                                                         start: 10,
[INFO] [stdout]                                                         end: 11,
[INFO] [stdout]                                                     },
[INFO] [stdout]                                                     inner: [
[INFO] [stdout]                                                         Pair {
[INFO] [stdout]                                                             rule: unary_operator_expr,
[INFO] [stdout]                                                             span: Span {
[INFO] [stdout]                                                                 str: "a",
[INFO] [stdout]                                                                 start: 10,
[INFO] [stdout]                                                                 end: 11,
[INFO] [stdout]                                                             },
[INFO] [stdout]                                                             inner: [
[INFO] [stdout]                                                                 Pair {
[INFO] [stdout]                                                                     rule: nested_expr,
[INFO] [stdout]                                                                     span: Span {
[INFO] [stdout]                                                                         str: "a",
[INFO] [stdout]                                                                         start: 10,
[INFO] [stdout]                                                                         end: 11,
[INFO] [stdout]                                                                     },
[INFO] [stdout]                                                                     inner: [
[INFO] [stdout]                                                                         Pair {
[INFO] [stdout]                                                                             rule: atom,
[INFO] [stdout]                                                                             span: Span {
[INFO] [stdout]                                                                                 str: "a",
[INFO] [stdout]                                                                                 start: 10,
[INFO] [stdout]                                                                                 end: 11,
[INFO] [stdout]                                                                             },
[INFO] [stdout]                                                                             inner: [],
[INFO] [stdout]                                                                         },
[INFO] [stdout]                                                                     ],
[INFO] [stdout]                                                                 },
[INFO] [stdout]                                                             ],
[INFO] [stdout]                                                         },
[INFO] [stdout]                                                     ],
[INFO] [stdout]                                                 },
[INFO] [stdout]                                             ],
[INFO] [stdout]                                         },
[INFO] [stdout]                                     ],
[INFO] [stdout]                                 },
[INFO] [stdout]                             ],
[INFO] [stdout]                         },
[INFO] [stdout]                     ],
[INFO] [stdout]                 },
[INFO] [stdout]             ],
[INFO] [stdout]         },
[INFO] [stdout]     ],
[INFO] [stdout] )
[INFO] [stdout] Ok(
[INFO] [stdout]     [
[INFO] [stdout]         Pair {
[INFO] [stdout]             rule: program,
[INFO] [stdout]             span: Span {
[INFO] [stdout]                 str: "a,b,c",
[INFO] [stdout]                 start: 0,
[INFO] [stdout]                 end: 5,
[INFO] [stdout]             },
[INFO] [stdout]             inner: [
[INFO] [stdout]                 Pair {
[INFO] [stdout]                     rule: statement,
[INFO] [stdout]                     span: Span {
[INFO] [stdout]                         str: "a",
[INFO] [stdout]                         start: 0,
[INFO] [stdout]                         end: 1,
[INFO] [stdout]                     },
[INFO] [stdout]                     inner: [
[INFO] [stdout]                         Pair {
[INFO] [stdout]                             rule: expr,
[INFO] [stdout]                             span: Span {
[INFO] [stdout]                                 str: "a",
[INFO] [stdout]                                 start: 0,
[INFO] [stdout]                                 end: 1,
[INFO] [stdout]                             },
[INFO] [stdout]                             inner: [
[INFO] [stdout]                                 Pair {
[INFO] [stdout]                                     rule: bin_operator_expr,
[INFO] [stdout]                                     span: Span {
[INFO] [stdout]                                         str: "a",
[INFO] [stdout]                                         start: 0,
[INFO] [stdout]                                         end: 1,
[INFO] [stdout]                                     },
[INFO] [stdout]                                     inner: [
[INFO] [stdout]                                         Pair {
[INFO] [stdout]                                             rule: unary_operator_expr,
[INFO] [stdout]                                             span: Span {
[INFO] [stdout]                                                 str: "a",
[INFO] [stdout]                                                 start: 0,
[INFO] [stdout]                                                 end: 1,
[INFO] [stdout]                                             },
[INFO] [stdout]                                             inner: [
[INFO] [stdout]                                                 Pair {
[INFO] [stdout]                                                     rule: nested_expr,
[INFO] [stdout]                                                     span: Span {
[INFO] [stdout]                                                         str: "a",
[INFO] [stdout]                                                         start: 0,
[INFO] [stdout]                                                         end: 1,
[INFO] [stdout]                                                     },
[INFO] [stdout]                                                     inner: [
[INFO] [stdout]                                                         Pair {
[INFO] [stdout]                                                             rule: atom,
[INFO] [stdout]                                                             span: Span {
[INFO] [stdout]                                                                 str: "a",
[INFO] [stdout]                                                                 start: 0,
[INFO] [stdout]                                                                 end: 1,
[INFO] [stdout]                                                             },
[INFO] [stdout]                                                             inner: [],
[INFO] [stdout]                                                         },
[INFO] [stdout]                                                     ],
[INFO] [stdout]                                                 },
[INFO] [stdout]                                             ],
[INFO] [stdout]                                         },
[INFO] [stdout]                                     ],
[INFO] [stdout]                                 },
[INFO] [stdout]                             ],
[INFO] [stdout]                         },
[INFO] [stdout]                     ],
[INFO] [stdout]                 },
[INFO] [stdout]                 Pair {
[INFO] [stdout]                     rule: statement,
[INFO] [stdout]                     span: Span {
[INFO] [stdout]                         str: "b",
[INFO] [stdout]                         start: 2,
[INFO] [stdout]                         end: 3,
[INFO] [stdout]                     },
[INFO] [stdout]                     inner: [
[INFO] [stdout]                         Pair {
[INFO] [stdout]                             rule: expr,
[INFO] [stdout]                             span: Span {
[INFO] [stdout]                                 str: "b",
[INFO] [stdout]                                 start: 2,
[INFO] [stdout]                                 end: 3,
[INFO] [stdout]                             },
[INFO] [stdout]                             inner: [
[INFO] [stdout]                                 Pair {
[INFO] [stdout]                                     rule: bin_operator_expr,
[INFO] [stdout]                                     span: Span {
[INFO] [stdout]                                         str: "b",
[INFO] [stdout]                                         start: 2,
[INFO] [stdout]                                         end: 3,
[INFO] [stdout]                                     },
[INFO] [stdout]                                     inner: [
[INFO] [stdout]                                         Pair {
[INFO] [stdout]                                             rule: unary_operator_expr,
[INFO] [stdout]                                             span: Span {
[INFO] [stdout]                                                 str: "b",
[INFO] [stdout]                                                 start: 2,
[INFO] [stdout]                                                 end: 3,
[INFO] [stdout]                                             },
[INFO] [stdout]                                             inner: [
[INFO] [stdout]                                                 Pair {
[INFO] [stdout]                                                     rule: nested_expr,
[INFO] [stdout]                                                     span: Span {
[INFO] [stdout]                                                         str: "b",
[INFO] [stdout]                                                         start: 2,
[INFO] [stdout]                                                         end: 3,
[INFO] [stdout]                                                     },
[INFO] [stdout]                                                     inner: [
[INFO] [stdout]                                                         Pair {
[INFO] [stdout]                                                             rule: atom,
[INFO] [stdout]                                                             span: Span {
[INFO] [stdout]                                                                 str: "b",
[INFO] [stdout]                                                                 start: 2,
[INFO] [stdout]                                                                 end: 3,
[INFO] [stdout]                                                             },
[INFO] [stdout]                                                             inner: [],
[INFO] [stdout]                                                         },
[INFO] [stdout]                                                     ],
[INFO] [stdout]                                                 },
[INFO] [stdout]                                             ],
[INFO] [stdout]                                         },
[INFO] [stdout]                                     ],
[INFO] [stdout]                                 },
[INFO] [stdout]                             ],
[INFO] [stdout]                         },
[INFO] [stdout]                     ],
[INFO] [stdout]                 },
[INFO] [stdout]                 Pair {
[INFO] [stdout]                     rule: statement,
[INFO] [stdout]                     span: Span {
[INFO] [stdout]                         str: "c",
[INFO] [stdout]                         start: 4,
[INFO] [stdout]                         end: 5,
[INFO] [stdout]                     },
[INFO] [stdout]                     inner: [
[INFO] [stdout]                         Pair {
[INFO] [stdout]                             rule: expr,
[INFO] [stdout]                             span: Span {
[INFO] [stdout]                                 str: "c",
[INFO] [stdout]                                 start: 4,
[INFO] [stdout]                                 end: 5,
[INFO] [stdout]                             },
[INFO] [stdout]                             inner: [
[INFO] [stdout]                                 Pair {
[INFO] [stdout]                                     rule: bin_operator_expr,
[INFO] [stdout]                                     span: Span {
[INFO] [stdout]                                         str: "c",
[INFO] [stdout]                                         start: 4,
[INFO] [stdout]                                         end: 5,
[INFO] [stdout]                                     },
[INFO] [stdout]                                     inner: [
[INFO] [stdout]                                         Pair {
[INFO] [stdout]                                             rule: unary_operator_expr,
[INFO] [stdout]                                             span: Span {
[INFO] [stdout]                                                 str: "c",
[INFO] [stdout]                                                 start: 4,
[INFO] [stdout]                                                 end: 5,
[INFO] [stdout]                                             },
[INFO] [stdout]                                             inner: [
[INFO] [stdout]                                                 Pair {
[INFO] [stdout]                                                     rule: nested_expr,
[INFO] [stdout]                                                     span: Span {
[INFO] [stdout]                                                         str: "c",
[INFO] [stdout]                                                         start: 4,
[INFO] [stdout]                                                         end: 5,
[INFO] [stdout]                                                     },
[INFO] [stdout]                                                     inner: [
[INFO] [stdout]                                                         Pair {
[INFO] [stdout]                                                             rule: atom,
[INFO] [stdout]                                                             span: Span {
[INFO] [stdout]                                                                 str: "c",
[INFO] [stdout]                                                                 start: 4,
[INFO] [stdout]                                                                 end: 5,
[INFO] [stdout]                                                             },
[INFO] [stdout]                                                             inner: [],
[INFO] [stdout]                                                         },
[INFO] [stdout]                                                     ],
[INFO] [stdout]                                                 },
[INFO] [stdout]                                             ],
[INFO] [stdout]                                         },
[INFO] [stdout]                                     ],
[INFO] [stdout]                                 },
[INFO] [stdout]                             ],
[INFO] [stdout]                         },
[INFO] [stdout]                     ],
[INFO] [stdout]                 },
[INFO] [stdout]             ],
[INFO] [stdout]         },
[INFO] [stdout]     ],
[INFO] [stdout] )
[INFO] [stdout] Ok(
[INFO] [stdout]     [
[INFO] [stdout]         Pair {
[INFO] [stdout]             rule: program,
[INFO] [stdout]             span: Span {
[INFO] [stdout]                 str: "a = 2",
[INFO] [stdout]                 start: 0,
[INFO] [stdout]                 end: 5,
[INFO] [stdout]             },
[INFO] [stdout]             inner: [
[INFO] [stdout]                 Pair {
[INFO] [stdout]                     rule: statement,
[INFO] [stdout]                     span: Span {
[INFO] [stdout]                         str: "a = 2",
[INFO] [stdout]                         start: 0,
[INFO] [stdout]                         end: 5,
[INFO] [stdout]                     },
[INFO] [stdout]                     inner: [
[INFO] [stdout]                         Pair {
[INFO] [stdout]                             rule: assignment,
[INFO] [stdout]                             span: Span {
[INFO] [stdout]                                 str: "a = 2",
[INFO] [stdout]                                 start: 0,
[INFO] [stdout]                                 end: 5,
[INFO] [stdout]                             },
[INFO] [stdout]                             inner: [
[INFO] [stdout]                                 Pair {
[INFO] [stdout]                                     rule: var_assign,
[INFO] [stdout]                                     span: Span {
[INFO] [stdout]                                         str: "a = 2",
[INFO] [stdout]                                         start: 0,
[INFO] [stdout]                                         end: 5,
[INFO] [stdout]                                     },
[INFO] [stdout]                                     inner: [
[INFO] [stdout]                                         Pair {
[INFO] [stdout]                                             rule: varname,
[INFO] [stdout]                                             span: Span {
[INFO] [stdout]                                                 str: "a",
[INFO] [stdout]                                                 start: 0,
[INFO] [stdout]                                                 end: 1,
[INFO] [stdout]                                             },
[INFO] [stdout]                                             inner: [],
[INFO] [stdout]                                         },
[INFO] [stdout]                                         Pair {
[INFO] [stdout]                                             rule: expr,
[INFO] [stdout]                                             span: Span {
[INFO] [stdout]                                                 str: "2",
[INFO] [stdout]                                                 start: 4,
[INFO] [stdout]                                                 end: 5,
[INFO] [stdout]                                             },
[INFO] [stdout]                                             inner: [
[INFO] [stdout]                                                 Pair {
[INFO] [stdout]                                                     rule: bin_operator_expr,
[INFO] [stdout]                                                     span: Span {
[INFO] [stdout]                                                         str: "2",
[INFO] [stdout]                                                         start: 4,
[INFO] [stdout]                                                         end: 5,
[INFO] [stdout]                                                     },
[INFO] [stdout]                                                     inner: [
[INFO] [stdout]                                                         Pair {
[INFO] [stdout]                                                             rule: unary_operator_expr,
[INFO] [stdout]                                                             span: Span {
[INFO] [stdout]                                                                 str: "2",
[INFO] [stdout]                                                                 start: 4,
[INFO] [stdout]                                                                 end: 5,
[INFO] [stdout]                                                             },
[INFO] [stdout]                                                             inner: [
[INFO] [stdout]                                                                 Pair {
[INFO] [stdout]                                                                     rule: nested_expr,
[INFO] [stdout]                                                                     span: Span {
[INFO] [stdout]                                                                         str: "2",
[INFO] [stdout]                                                                         start: 4,
[INFO] [stdout]                                                                         end: 5,
[INFO] [stdout]                                                                     },
[INFO] [stdout]                                                                     inner: [
[INFO] [stdout]                                                                         Pair {
[INFO] [stdout]                                                                             rule: atom,
[INFO] [stdout]                                                                             span: Span {
[INFO] [stdout]                                                                                 str: "2",
[INFO] [stdout]                                                                                 start: 4,
[INFO] [stdout]                                                                                 end: 5,
[INFO] [stdout]                                                                             },
[INFO] [stdout]                                                                             inner: [
[INFO] [stdout]                                                                                 Pair {
[INFO] [stdout]                                                                                     rule: number,
[INFO] [stdout]                                                                                     span: Span {
[INFO] [stdout]                                                                                         str: "2",
[INFO] [stdout]                                                                                         start: 4,
[INFO] [stdout]                                                                                         end: 5,
[INFO] [stdout]                                                                                     },
[INFO] [stdout]                                                                                     inner: [
[INFO] [stdout]                                                                                         Pair {
[INFO] [stdout]                                                                                             rule: integer,
[INFO] [stdout]                                                                                             span: Span {
[INFO] [stdout]                                                                                                 str: "2",
[INFO] [stdout]                                                                                                 start: 4,
[INFO] [stdout]                                                                                                 end: 5,
[INFO] [stdout]                                                                                             },
[INFO] [stdout]                                                                                             inner: [],
[INFO] [stdout]                                                                                         },
[INFO] [stdout]                                                                                     ],
[INFO] [stdout]                                                                                 },
[INFO] [stdout]                                                                             ],
[INFO] [stdout]                                                                         },
[INFO] [stdout]                                                                     ],
[INFO] [stdout]                                                                 },
[INFO] [stdout]                                                             ],
[INFO] [stdout]                                                         },
[INFO] [stdout]                                                     ],
[INFO] [stdout]                                                 },
[INFO] [stdout]                                             ],
[INFO] [stdout]                                         },
[INFO] [stdout]                                     ],
[INFO] [stdout]                                 },
[INFO] [stdout]                             ],
[INFO] [stdout]                         },
[INFO] [stdout]                     ],
[INFO] [stdout]                 },
[INFO] [stdout]             ],
[INFO] [stdout]         },
[INFO] [stdout]     ],
[INFO] [stdout] )
[INFO] [stdout] 
[INFO] [stdout] thread 'interpreter::parser::test::test' (25) panicked at src/interpreter/parser.rs:62:9:
[INFO] [stdout] assertion failed: false
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x64632c050a52 - std[3f03f8b59f91bef1]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x64632c050a52 - std[3f03f8b59f91bef1]::backtrace_rs::backtrace::trace_unsynchronized::<std[3f03f8b59f91bef1]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x64632c050a52 - std[3f03f8b59f91bef1]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x64632c050a52 - <<std[3f03f8b59f91bef1]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[585f66e14d78f9ba]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x64632c06546a - <core[585f66e14d78f9ba]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x64632c06546a - core[585f66e14d78f9ba]::fmt::write
[INFO] [stdout]    6:     0x64632c055906 - std[3f03f8b59f91bef1]::io::default_write_fmt::<alloc[15e7b27aba85d2e2]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x64632c055906 - <alloc[15e7b27aba85d2e2]::vec::Vec<u8> as std[3f03f8b59f91bef1]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x64632c02f1ef - <std[3f03f8b59f91bef1]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x64632c02f1ef - std[3f03f8b59f91bef1]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x64632c048d89 - std[3f03f8b59f91bef1]::panicking::default_hook
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x64632bfdedfe - <alloc[15e7b27aba85d2e2]::boxed::Box<dyn for<'a, 'b> core[585f66e14d78f9ba]::ops::function::Fn<(&'a std[3f03f8b59f91bef1]::panic::PanicHookInfo<'b>,), Output = ()> + core[585f66e14d78f9ba]::marker::Sync + core[585f66e14d78f9ba]::marker::Send> as core[585f66e14d78f9ba]::ops::function::Fn<(&std[3f03f8b59f91bef1]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x64632bfdedfe - test[30224e0cb089acd2]::test_main_with_exit_callback::<test[30224e0cb089acd2]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x64632c048f42 - <alloc[15e7b27aba85d2e2]::boxed::Box<dyn for<'a, 'b> core[585f66e14d78f9ba]::ops::function::Fn<(&'a std[3f03f8b59f91bef1]::panic::PanicHookInfo<'b>,), Output = ()> + core[585f66e14d78f9ba]::marker::Sync + core[585f66e14d78f9ba]::marker::Send> as core[585f66e14d78f9ba]::ops::function::Fn<(&std[3f03f8b59f91bef1]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x64632c048f42 - std[3f03f8b59f91bef1]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x64632c02f2da - std[3f03f8b59f91bef1]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:691:13
[INFO] [stdout]   16:     0x64632c024469 - std[3f03f8b59f91bef1]::sys::backtrace::__rust_end_short_backtrace::<std[3f03f8b59f91bef1]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x64632c0300fd - __rustc[caa99d26c7bae192]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x64632c065b3c - core[585f66e14d78f9ba]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x64632c065b02 - core[585f66e14d78f9ba]::panicking::panic
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panicking.rs:150:5
[INFO] [stdout]   20:     0x64632bfcc223 - fraction_interpreter[3cff22896e670426]::interpreter::parser::test::test
[INFO] [stdout]                                at /opt/rustwide/workdir/src/interpreter/parser.rs:62:9
[INFO] [stdout]   21:     0x64632bfcb6f7 - fraction_interpreter[3cff22896e670426]::interpreter::parser::test::test::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/interpreter/parser.rs:49:14
[INFO] [stdout]   22:     0x64632bfd0456 - <fraction_interpreter[3cff22896e670426]::interpreter::parser::test::test::{closure#0} as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x64632bfd31ab - <fn() -> core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x64632bfd31ab - test[30224e0cb089acd2]::__rust_begin_short_backtrace::<core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>, fn() -> core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:663:18
[INFO] [stdout]   25:     0x64632bfdfa0a - test[30224e0cb089acd2]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:686:74
[INFO] [stdout]   26:     0x64632bfdfa0a - <core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   27:     0x64632bfdfa0a - std[3f03f8b59f91bef1]::panicking::catch_unwind::do_call::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}>, core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:581:40
[INFO] [stdout]   28:     0x64632bfdfa0a - std[3f03f8b59f91bef1]::panicking::catch_unwind::<core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>, core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:544:19
[INFO] [stdout]   29:     0x64632bfdfa0a - std[3f03f8b59f91bef1]::panic::catch_unwind::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<test[30224e0cb089acd2]::run_test_in_process::{closure#0}>, core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::string::String>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x64632bfdfa0a - test[30224e0cb089acd2]::run_test_in_process
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:686:27
[INFO] [stdout]   31:     0x64632bfdfa0a - test[30224e0cb089acd2]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:607:43
[INFO] [stdout]   32:     0x64632bfd9ed4 - test[30224e0cb089acd2]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/test/src/lib.rs:637:41
[INFO] [stdout]   33:     0x64632bfd9ed4 - std[3f03f8b59f91bef1]::sys::backtrace::__rust_begin_short_backtrace::<test[30224e0cb089acd2]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   34:     0x64632bfe2502 - std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked::<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   35:     0x64632bfe2502 - <core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   36:     0x64632bfe2502 - std[3f03f8b59f91bef1]::panicking::catch_unwind::do_call::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:581:40
[INFO] [stdout]   37:     0x64632bfe2502 - std[3f03f8b59f91bef1]::panicking::catch_unwind::<(), core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:544:19
[INFO] [stdout]   38:     0x64632bfe2502 - std[3f03f8b59f91bef1]::panic::catch_unwind::<core[585f66e14d78f9ba]::panic::unwind_safe::AssertUnwindSafe<std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x64632bfe2502 - std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked::<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   40:     0x64632bfe2502 - <std[3f03f8b59f91bef1]::thread::lifecycle::spawn_unchecked<test[30224e0cb089acd2]::run_test::{closure#1}, ()>::{closure#1} as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x64632c0502ff - <alloc[15e7b27aba85d2e2]::boxed::Box<dyn core[585f66e14d78f9ba]::ops::function::FnOnce<(), Output = ()> + core[585f66e14d78f9ba]::marker::Send> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   42:     0x64632c0502ff - <std[3f03f8b59f91bef1]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   43:     0x7fb54edacaa4 - <unknown>
[INFO] [stdout]   44:     0x7fb54ee39a64 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     interpreter::parser::test::test
[INFO] [stdout]     interpreter::test::name
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin fraction-interpreter`
[INFO] running `Command { std: "docker" "inspect" "c21f1b646e1142c631975beaa539a703734fac592571f2cc982a7534a5fa6108", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c21f1b646e1142c631975beaa539a703734fac592571f2cc982a7534a5fa6108", kill_on_drop: false }`
[INFO] [stdout] c21f1b646e1142c631975beaa539a703734fac592571f2cc982a7534a5fa6108
