[INFO] cloning repository https://github.com/mcon/craftinginterpreters-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mcon/craftinginterpreters-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcon%2Fcraftinginterpreters-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcon%2Fcraftinginterpreters-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a3f64d224860b6c44a3f5f8eefa775e9b58de37
[INFO] testing mcon/craftinginterpreters-rust against try#b8e88e5ddf5521a9f43ee3f62a702388c713e4bb for pr-155114
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcon%2Fcraftinginterpreters-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mcon/craftinginterpreters-rust
[INFO] finished tweaking git repo https://github.com/mcon/craftinginterpreters-rust
[INFO] tweaked toml for git repo https://github.com/mcon/craftinginterpreters-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mcon/craftinginterpreters-rust on toolchain b8e88e5ddf5521a9f43ee3f62a702388c713e4bb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b8e88e5ddf5521a9f43ee3f62a702388c713e4bb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mcon/craftinginterpreters-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b8e88e5ddf5521a9f43ee3f62a702388c713e4bb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b8e88e5ddf5521a9f43ee3f62a702388c713e4bb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f35548e69a1068f8c8bb22324ea5522b7b76b86b54dd4f27a42de7a9f46a44ab
[INFO] running `Command { std: "docker" "start" "-a" "f35548e69a1068f8c8bb22324ea5522b7b76b86b54dd4f27a42de7a9f46a44ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f35548e69a1068f8c8bb22324ea5522b7b76b86b54dd4f27a42de7a9f46a44ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f35548e69a1068f8c8bb22324ea5522b7b76b86b54dd4f27a42de7a9f46a44ab", kill_on_drop: false }`
[INFO] [stdout] f35548e69a1068f8c8bb22324ea5522b7b76b86b54dd4f27a42de7a9f46a44ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b8e88e5ddf5521a9f43ee3f62a702388c713e4bb" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab424992b69ec22f446fa9bef2c231a59fef0b8660dba383d474dddb6d90b795
[INFO] running `Command { std: "docker" "start" "-a" "ab424992b69ec22f446fa9bef2c231a59fef0b8660dba383d474dddb6d90b795", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling argparse v0.2.2
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling loxrust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/parser.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Identifier`
[INFO] [stdout]  --> src/interpreter.rs:1:68
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ast::{Exp, BinaryExp, GroupingExp, UnaryExp, LiteralExp, Stmt, Identifier};
[INFO] [stdout]   |                                                                    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::FromIterator`
[INFO] [stdout]  --> src/interpreter.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::iter::FromIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/interpreter.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ast::Identifier`
[INFO] [stdout]  --> src/environment.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ast::Identifier;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]  --> src/environment.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/environment.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:26:64
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn instances_to_discriminants<A> (items : &'static [A]) -> Box<Iterator<Item=Discriminant<A>>> {
[INFO] [stdout]    |                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn instances_to_discriminants<A> (items : &'static [A]) -> Box<dyn Iterator<Item=Discriminant<A>>> {
[INFO] [stdout]    |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:94:60
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn consume_valid_tokens(&mut self, valid_tokens : &mut Iterator<Item=Discriminant<TokenType>>) -> bool {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn consume_valid_tokens(&mut self, valid_tokens : &mut dyn Iterator<Item=Discriminant<TokenType>>) -> bool {
[INFO] [stdout]    |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:108:57
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn execute_level(&mut self, valid_tokens : &mut Box<Iterator<Item=Discriminant<TokenType>>>, previous_exp : Exp,
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn execute_level(&mut self, valid_tokens : &mut Box<dyn Iterator<Item=Discriminant<TokenType>>>, previous_exp : Exp,
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:109:34
[INFO] [stdout]     |
[INFO] [stdout] 109 |         current_exp_generator : &Fn(&mut Parser, &Token, Exp) -> Result<Exp, String>) -> Result<Exp, String> {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 |         current_exp_generator : &dyn Fn(&mut Parser, &Token, Exp) -> Result<Exp, String>) -> Result<Exp, String> {
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:18:43
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn matches(&self, valid_tokens : &mut Iterator<Item = Discriminant<TokenType>>) -> bool {
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn matches(&self, valid_tokens : &mut dyn Iterator<Item = Discriminant<TokenType>>) -> bool {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/scanner.rs:276:9
[INFO] [stdout]     |
[INFO] [stdout] 267 | /             match string.parse::<i64>() {
[INFO] [stdout] 268 | |                 Ok(result) => return Some(TokenType::Literal(Literal::NUMBER(result))),
[INFO] [stdout] 269 | |                 Err(_) => {
[INFO] [stdout] 270 | |                     self.errors.push(format!("Unable to parse number on line {}", self.line));
[INFO] [stdout] ...   |
[INFO] [stdout] 273 | |             }
[INFO] [stdout]     | |_____________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] ...
[INFO] [stdout] 276 |           self.errors.push(format!("Unknown error parsing number on line {}", self.line));
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `character`
[INFO] [stdout]    --> src/scanner.rs:226:13
[INFO] [stdout]     |
[INFO] [stdout] 226 |             character @ '0'..='9' => {
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_character`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/interpreter.rs:40:28
[INFO] [stdout]    |
[INFO] [stdout] 40 |         stmts_success.map(|x| ())
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/interpreter.rs:140:25
[INFO] [stdout]     |
[INFO] [stdout] 140 |                         x => {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:106:51
[INFO] [stdout]     |
[INFO] [stdout] 106 |             Token { token_type: TokenType::MINUS, lexeme, line } => {
[INFO] [stdout]     |                                                   ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:106:59
[INFO] [stdout]     |
[INFO] [stdout] 106 |             Token { token_type: TokenType::MINUS, lexeme, line } => {
[INFO] [stdout]     |                                                           ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:110:51
[INFO] [stdout]     |
[INFO] [stdout] 110 |             Token { token_type: TokenType::SLASH, lexeme, line } => {
[INFO] [stdout]     |                                                   ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:110:59
[INFO] [stdout]     |
[INFO] [stdout] 110 |             Token { token_type: TokenType::SLASH, lexeme, line } => {
[INFO] [stdout]     |                                                           ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:114:50
[INFO] [stdout]     |
[INFO] [stdout] 114 |             Token { token_type: TokenType::STAR, lexeme, line } => {
[INFO] [stdout]     |                                                  ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:114:58
[INFO] [stdout]     |
[INFO] [stdout] 114 |             Token { token_type: TokenType::STAR, lexeme, line } => {
[INFO] [stdout]     |                                                          ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:118:53
[INFO] [stdout]     |
[INFO] [stdout] 118 |             Token { token_type: TokenType::GREATER, lexeme, line } => {
[INFO] [stdout]     |                                                     ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:118:61
[INFO] [stdout]     |
[INFO] [stdout] 118 |             Token { token_type: TokenType::GREATER, lexeme, line } => {
[INFO] [stdout]     |                                                             ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:122:58
[INFO] [stdout]     |
[INFO] [stdout] 122 |             Token { token_type: TokenType::GreaterEqual, lexeme, line } => {
[INFO] [stdout]     |                                                          ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:122:66
[INFO] [stdout]     |
[INFO] [stdout] 122 |             Token { token_type: TokenType::GreaterEqual, lexeme, line } => {
[INFO] [stdout]     |                                                                  ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:126:50
[INFO] [stdout]     |
[INFO] [stdout] 126 |             Token { token_type: TokenType::LESS, lexeme, line } => {
[INFO] [stdout]     |                                                  ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:126:58
[INFO] [stdout]     |
[INFO] [stdout] 126 |             Token { token_type: TokenType::LESS, lexeme, line } => {
[INFO] [stdout]     |                                                          ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:130:55
[INFO] [stdout]     |
[INFO] [stdout] 130 |             Token { token_type: TokenType::LessEqual, lexeme, line } => {
[INFO] [stdout]     |                                                       ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:130:63
[INFO] [stdout]     |
[INFO] [stdout] 130 |             Token { token_type: TokenType::LessEqual, lexeme, line } => {
[INFO] [stdout]     |                                                               ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:134:50
[INFO] [stdout]     |
[INFO] [stdout] 134 |             Token { token_type: TokenType::PLUS, lexeme, line } => {
[INFO] [stdout]     |                                                  ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:134:58
[INFO] [stdout]     |
[INFO] [stdout] 134 |             Token { token_type: TokenType::PLUS, lexeme, line } => {
[INFO] [stdout]     |                                                          ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:144:55
[INFO] [stdout]     |
[INFO] [stdout] 144 |             Token { token_type: TokenType::BangEqual, lexeme, line } => {
[INFO] [stdout]     |                                                       ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:144:63
[INFO] [stdout]     |
[INFO] [stdout] 144 |             Token { token_type: TokenType::BangEqual, lexeme, line } => {
[INFO] [stdout]     |                                                               ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:148:56
[INFO] [stdout]     |
[INFO] [stdout] 148 |             Token { token_type: TokenType::EqualEqual, lexeme, line } => {
[INFO] [stdout]     |                                                        ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:148:64
[INFO] [stdout]     |
[INFO] [stdout] 148 |             Token { token_type: TokenType::EqualEqual, lexeme, line } => {
[INFO] [stdout]     |                                                                ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:152:33
[INFO] [stdout]     |
[INFO] [stdout] 152 |             Token { token_type, lexeme, line } =>
[INFO] [stdout]     |                                 ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/interpreter.rs:99:21
[INFO] [stdout]    |
[INFO] [stdout] 99 |                     x => {Err("Non-number values not supported with operator -".to_string())},
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l_other`
[INFO] [stdout]    --> src/interpreter.rs:188:13
[INFO] [stdout]     |
[INFO] [stdout] 188 |         (Ok(l_other), Err(r_other)) => Err(r_other),
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_l_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.29s
[INFO] running `Command { std: "docker" "inspect" "ab424992b69ec22f446fa9bef2c231a59fef0b8660dba383d474dddb6d90b795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab424992b69ec22f446fa9bef2c231a59fef0b8660dba383d474dddb6d90b795", kill_on_drop: false }`
[INFO] [stdout] ab424992b69ec22f446fa9bef2c231a59fef0b8660dba383d474dddb6d90b795
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b8e88e5ddf5521a9f43ee3f62a702388c713e4bb" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04847f9d4c113182465fbcd946534a23de465bea5ef036baf7dc6925de267ba5
[INFO] running `Command { std: "docker" "start" "-a" "04847f9d4c113182465fbcd946534a23de465bea5ef036baf7dc6925de267ba5", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/parser.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Identifier`
[INFO] [stdout]  --> src/interpreter.rs:1:68
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ast::{Exp, BinaryExp, GroupingExp, UnaryExp, LiteralExp, Stmt, Identifier};
[INFO] [stdout]   |                                                                    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::FromIterator`
[INFO] [stdout]  --> src/interpreter.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::iter::FromIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/interpreter.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ast::Identifier`
[INFO] [stdout]  --> src/environment.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ast::Identifier;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]  --> src/environment.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/environment.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:26:64
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn instances_to_discriminants<A> (items : &'static [A]) -> Box<Iterator<Item=Discriminant<A>>> {
[INFO] [stdout]    |                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn instances_to_discriminants<A> (items : &'static [A]) -> Box<dyn Iterator<Item=Discriminant<A>>> {
[INFO] [stdout]    |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:94:60
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn consume_valid_tokens(&mut self, valid_tokens : &mut Iterator<Item=Discriminant<TokenType>>) -> bool {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn consume_valid_tokens(&mut self, valid_tokens : &mut dyn Iterator<Item=Discriminant<TokenType>>) -> bool {
[INFO] [stdout]    |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:108:57
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn execute_level(&mut self, valid_tokens : &mut Box<Iterator<Item=Discriminant<TokenType>>>, previous_exp : Exp,
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn execute_level(&mut self, valid_tokens : &mut Box<dyn Iterator<Item=Discriminant<TokenType>>>, previous_exp : Exp,
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:109:34
[INFO] [stdout]     |
[INFO] [stdout] 109 |         current_exp_generator : &Fn(&mut Parser, &Token, Exp) -> Result<Exp, String>) -> Result<Exp, String> {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 |         current_exp_generator : &dyn Fn(&mut Parser, &Token, Exp) -> Result<Exp, String>) -> Result<Exp, String> {
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:18:43
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn matches(&self, valid_tokens : &mut Iterator<Item = Discriminant<TokenType>>) -> bool {
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn matches(&self, valid_tokens : &mut dyn Iterator<Item = Discriminant<TokenType>>) -> bool {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/scanner.rs:276:9
[INFO] [stdout]     |
[INFO] [stdout] 267 | /             match string.parse::<i64>() {
[INFO] [stdout] 268 | |                 Ok(result) => return Some(TokenType::Literal(Literal::NUMBER(result))),
[INFO] [stdout] 269 | |                 Err(_) => {
[INFO] [stdout] 270 | |                     self.errors.push(format!("Unable to parse number on line {}", self.line));
[INFO] [stdout] ...   |
[INFO] [stdout] 273 | |             }
[INFO] [stdout]     | |_____________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] ...
[INFO] [stdout] 276 |           self.errors.push(format!("Unknown error parsing number on line {}", self.line));
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `character`
[INFO] [stdout]    --> src/scanner.rs:226:13
[INFO] [stdout]     |
[INFO] [stdout] 226 |             character @ '0'..='9' => {
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_character`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/interpreter.rs:40:28
[INFO] [stdout]    |
[INFO] [stdout] 40 |         stmts_success.map(|x| ())
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/interpreter.rs:140:25
[INFO] [stdout]     |
[INFO] [stdout] 140 |                         x => {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:106:51
[INFO] [stdout]     |
[INFO] [stdout] 106 |             Token { token_type: TokenType::MINUS, lexeme, line } => {
[INFO] [stdout]     |                                                   ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:106:59
[INFO] [stdout]     |
[INFO] [stdout] 106 |             Token { token_type: TokenType::MINUS, lexeme, line } => {
[INFO] [stdout]     |                                                           ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:110:51
[INFO] [stdout]     |
[INFO] [stdout] 110 |             Token { token_type: TokenType::SLASH, lexeme, line } => {
[INFO] [stdout]     |                                                   ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:110:59
[INFO] [stdout]     |
[INFO] [stdout] 110 |             Token { token_type: TokenType::SLASH, lexeme, line } => {
[INFO] [stdout]     |                                                           ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:114:50
[INFO] [stdout]     |
[INFO] [stdout] 114 |             Token { token_type: TokenType::STAR, lexeme, line } => {
[INFO] [stdout]     |                                                  ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:114:58
[INFO] [stdout]     |
[INFO] [stdout] 114 |             Token { token_type: TokenType::STAR, lexeme, line } => {
[INFO] [stdout]     |                                                          ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:118:53
[INFO] [stdout]     |
[INFO] [stdout] 118 |             Token { token_type: TokenType::GREATER, lexeme, line } => {
[INFO] [stdout]     |                                                     ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:118:61
[INFO] [stdout]     |
[INFO] [stdout] 118 |             Token { token_type: TokenType::GREATER, lexeme, line } => {
[INFO] [stdout]     |                                                             ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling loxrust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:122:58
[INFO] [stdout]     |
[INFO] [stdout] 122 |             Token { token_type: TokenType::GreaterEqual, lexeme, line } => {
[INFO] [stdout]     |                                                          ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:122:66
[INFO] [stdout]     |
[INFO] [stdout] 122 |             Token { token_type: TokenType::GreaterEqual, lexeme, line } => {
[INFO] [stdout]     |                                                                  ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:126:50
[INFO] [stdout]     |
[INFO] [stdout] 126 |             Token { token_type: TokenType::LESS, lexeme, line } => {
[INFO] [stdout]     |                                                  ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:126:58
[INFO] [stdout]     |
[INFO] [stdout] 126 |             Token { token_type: TokenType::LESS, lexeme, line } => {
[INFO] [stdout]     |                                                          ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:130:55
[INFO] [stdout]     |
[INFO] [stdout] 130 |             Token { token_type: TokenType::LessEqual, lexeme, line } => {
[INFO] [stdout]     |                                                       ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:130:63
[INFO] [stdout]     |
[INFO] [stdout] 130 |             Token { token_type: TokenType::LessEqual, lexeme, line } => {
[INFO] [stdout]     |                                                               ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:134:50
[INFO] [stdout]     |
[INFO] [stdout] 134 |             Token { token_type: TokenType::PLUS, lexeme, line } => {
[INFO] [stdout]     |                                                  ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:134:58
[INFO] [stdout]     |
[INFO] [stdout] 134 |             Token { token_type: TokenType::PLUS, lexeme, line } => {
[INFO] [stdout]     |                                                          ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:144:55
[INFO] [stdout]     |
[INFO] [stdout] 144 |             Token { token_type: TokenType::BangEqual, lexeme, line } => {
[INFO] [stdout]     |                                                       ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:144:63
[INFO] [stdout]     |
[INFO] [stdout] 144 |             Token { token_type: TokenType::BangEqual, lexeme, line } => {
[INFO] [stdout]     |                                                               ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:148:56
[INFO] [stdout]     |
[INFO] [stdout] 148 |             Token { token_type: TokenType::EqualEqual, lexeme, line } => {
[INFO] [stdout]     |                                                        ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:148:64
[INFO] [stdout]     |
[INFO] [stdout] 148 |             Token { token_type: TokenType::EqualEqual, lexeme, line } => {
[INFO] [stdout]     |                                                                ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:152:33
[INFO] [stdout]     |
[INFO] [stdout] 152 |             Token { token_type, lexeme, line } =>
[INFO] [stdout]     |                                 ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/interpreter.rs:99:21
[INFO] [stdout]    |
[INFO] [stdout] 99 |                     x => {Err("Non-number values not supported with operator -".to_string())},
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l_other`
[INFO] [stdout]    --> src/interpreter.rs:188:13
[INFO] [stdout]     |
[INFO] [stdout] 188 |         (Ok(l_other), Err(r_other)) => Err(r_other),
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_l_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/parser.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Identifier`
[INFO] [stdout]  --> src/interpreter.rs:1:68
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ast::{Exp, BinaryExp, GroupingExp, UnaryExp, LiteralExp, Stmt, Identifier};
[INFO] [stdout]   |                                                                    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::FromIterator`
[INFO] [stdout]  --> src/interpreter.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::iter::FromIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/interpreter.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ast::Identifier`
[INFO] [stdout]  --> src/environment.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ast::Identifier;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]  --> src/environment.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/environment.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:26:64
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn instances_to_discriminants<A> (items : &'static [A]) -> Box<Iterator<Item=Discriminant<A>>> {
[INFO] [stdout]    |                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn instances_to_discriminants<A> (items : &'static [A]) -> Box<dyn Iterator<Item=Discriminant<A>>> {
[INFO] [stdout]    |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:94:60
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn consume_valid_tokens(&mut self, valid_tokens : &mut Iterator<Item=Discriminant<TokenType>>) -> bool {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn consume_valid_tokens(&mut self, valid_tokens : &mut dyn Iterator<Item=Discriminant<TokenType>>) -> bool {
[INFO] [stdout]    |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:108:57
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn execute_level(&mut self, valid_tokens : &mut Box<Iterator<Item=Discriminant<TokenType>>>, previous_exp : Exp,
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn execute_level(&mut self, valid_tokens : &mut Box<dyn Iterator<Item=Discriminant<TokenType>>>, previous_exp : Exp,
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:109:34
[INFO] [stdout]     |
[INFO] [stdout] 109 |         current_exp_generator : &Fn(&mut Parser, &Token, Exp) -> Result<Exp, String>) -> Result<Exp, String> {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 |         current_exp_generator : &dyn Fn(&mut Parser, &Token, Exp) -> Result<Exp, String>) -> Result<Exp, String> {
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser.rs:18:43
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn matches(&self, valid_tokens : &mut Iterator<Item = Discriminant<TokenType>>) -> bool {
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn matches(&self, valid_tokens : &mut dyn Iterator<Item = Discriminant<TokenType>>) -> bool {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/scanner.rs:276:9
[INFO] [stdout]     |
[INFO] [stdout] 267 | /             match string.parse::<i64>() {
[INFO] [stdout] 268 | |                 Ok(result) => return Some(TokenType::Literal(Literal::NUMBER(result))),
[INFO] [stdout] 269 | |                 Err(_) => {
[INFO] [stdout] 270 | |                     self.errors.push(format!("Unable to parse number on line {}", self.line));
[INFO] [stdout] ...   |
[INFO] [stdout] 273 | |             }
[INFO] [stdout]     | |_____________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] ...
[INFO] [stdout] 276 |           self.errors.push(format!("Unknown error parsing number on line {}", self.line));
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `character`
[INFO] [stdout]    --> src/scanner.rs:226:13
[INFO] [stdout]     |
[INFO] [stdout] 226 |             character @ '0'..='9' => {
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_character`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/interpreter.rs:40:28
[INFO] [stdout]    |
[INFO] [stdout] 40 |         stmts_success.map(|x| ())
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/interpreter.rs:140:25
[INFO] [stdout]     |
[INFO] [stdout] 140 |                         x => {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:106:51
[INFO] [stdout]     |
[INFO] [stdout] 106 |             Token { token_type: TokenType::MINUS, lexeme, line } => {
[INFO] [stdout]     |                                                   ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:106:59
[INFO] [stdout]     |
[INFO] [stdout] 106 |             Token { token_type: TokenType::MINUS, lexeme, line } => {
[INFO] [stdout]     |                                                           ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:110:51
[INFO] [stdout]     |
[INFO] [stdout] 110 |             Token { token_type: TokenType::SLASH, lexeme, line } => {
[INFO] [stdout]     |                                                   ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:110:59
[INFO] [stdout]     |
[INFO] [stdout] 110 |             Token { token_type: TokenType::SLASH, lexeme, line } => {
[INFO] [stdout]     |                                                           ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:114:50
[INFO] [stdout]     |
[INFO] [stdout] 114 |             Token { token_type: TokenType::STAR, lexeme, line } => {
[INFO] [stdout]     |                                                  ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:114:58
[INFO] [stdout]     |
[INFO] [stdout] 114 |             Token { token_type: TokenType::STAR, lexeme, line } => {
[INFO] [stdout]     |                                                          ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:118:53
[INFO] [stdout]     |
[INFO] [stdout] 118 |             Token { token_type: TokenType::GREATER, lexeme, line } => {
[INFO] [stdout]     |                                                     ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:118:61
[INFO] [stdout]     |
[INFO] [stdout] 118 |             Token { token_type: TokenType::GREATER, lexeme, line } => {
[INFO] [stdout]     |                                                             ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:122:58
[INFO] [stdout]     |
[INFO] [stdout] 122 |             Token { token_type: TokenType::GreaterEqual, lexeme, line } => {
[INFO] [stdout]     |                                                          ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:122:66
[INFO] [stdout]     |
[INFO] [stdout] 122 |             Token { token_type: TokenType::GreaterEqual, lexeme, line } => {
[INFO] [stdout]     |                                                                  ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:126:50
[INFO] [stdout]     |
[INFO] [stdout] 126 |             Token { token_type: TokenType::LESS, lexeme, line } => {
[INFO] [stdout]     |                                                  ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:126:58
[INFO] [stdout]     |
[INFO] [stdout] 126 |             Token { token_type: TokenType::LESS, lexeme, line } => {
[INFO] [stdout]     |                                                          ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:130:55
[INFO] [stdout]     |
[INFO] [stdout] 130 |             Token { token_type: TokenType::LessEqual, lexeme, line } => {
[INFO] [stdout]     |                                                       ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:130:63
[INFO] [stdout]     |
[INFO] [stdout] 130 |             Token { token_type: TokenType::LessEqual, lexeme, line } => {
[INFO] [stdout]     |                                                               ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:134:50
[INFO] [stdout]     |
[INFO] [stdout] 134 |             Token { token_type: TokenType::PLUS, lexeme, line } => {
[INFO] [stdout]     |                                                  ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:134:58
[INFO] [stdout]     |
[INFO] [stdout] 134 |             Token { token_type: TokenType::PLUS, lexeme, line } => {
[INFO] [stdout]     |                                                          ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:144:55
[INFO] [stdout]     |
[INFO] [stdout] 144 |             Token { token_type: TokenType::BangEqual, lexeme, line } => {
[INFO] [stdout]     |                                                       ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:144:63
[INFO] [stdout]     |
[INFO] [stdout] 144 |             Token { token_type: TokenType::BangEqual, lexeme, line } => {
[INFO] [stdout]     |                                                               ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:148:56
[INFO] [stdout]     |
[INFO] [stdout] 148 |             Token { token_type: TokenType::EqualEqual, lexeme, line } => {
[INFO] [stdout]     |                                                        ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/interpreter.rs:148:64
[INFO] [stdout]     |
[INFO] [stdout] 148 |             Token { token_type: TokenType::EqualEqual, lexeme, line } => {
[INFO] [stdout]     |                                                                ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexeme`
[INFO] [stdout]    --> src/interpreter.rs:152:33
[INFO] [stdout]     |
[INFO] [stdout] 152 |             Token { token_type, lexeme, line } =>
[INFO] [stdout]     |                                 ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/interpreter.rs:99:21
[INFO] [stdout]    |
[INFO] [stdout] 99 |                     x => {Err("Non-number values not supported with operator -".to_string())},
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l_other`
[INFO] [stdout]    --> src/interpreter.rs:188:13
[INFO] [stdout]     |
[INFO] [stdout] 188 |         (Ok(l_other), Err(r_other)) => Err(r_other),
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_l_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/parser.rs:295:32
[INFO] [stdout]     |
[INFO] [stdout] 295 |             Err(err) => panic!(err)
[INFO] [stdout]     |                                ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 295 |             Err(err) => panic!("{}", err)
[INFO] [stdout]     |                                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/parser.rs:332:32
[INFO] [stdout]     |
[INFO] [stdout] 332 |             Err(err) => panic!(err)
[INFO] [stdout]     |                                ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 332 |             Err(err) => panic!("{}", err)
[INFO] [stdout]     |                                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "04847f9d4c113182465fbcd946534a23de465bea5ef036baf7dc6925de267ba5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04847f9d4c113182465fbcd946534a23de465bea5ef036baf7dc6925de267ba5", kill_on_drop: false }`
[INFO] [stdout] 04847f9d4c113182465fbcd946534a23de465bea5ef036baf7dc6925de267ba5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b8e88e5ddf5521a9f43ee3f62a702388c713e4bb" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8a6f55a50dbd7d6974b7d25098156e52609793a93ea39daaf1d746307b9452ba
[INFO] running `Command { std: "docker" "start" "-a" "8a6f55a50dbd7d6974b7d25098156e52609793a93ea39daaf1d746307b9452ba", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/parser.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Identifier`
[INFO] [stderr]  --> src/interpreter.rs:1:68
[INFO] [stderr]   |
[INFO] [stderr] 1 | use ast::{Exp, BinaryExp, GroupingExp, UnaryExp, LiteralExp, Stmt, Identifier};
[INFO] [stderr]   |                                                                    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]  --> src/interpreter.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::iter::FromIterator;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/interpreter.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ast::Identifier`
[INFO] [stderr]  --> src/environment.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use ast::Identifier;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::convert::TryInto`
[INFO] [stderr]  --> src/environment.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::convert::TryInto;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/environment.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:26:64
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn instances_to_discriminants<A> (items : &'static [A]) -> Box<Iterator<Item=Discriminant<A>>> {
[INFO] [stderr]    |                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn instances_to_discriminants<A> (items : &'static [A]) -> Box<dyn Iterator<Item=Discriminant<A>>> {
[INFO] [stderr]    |                                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:94:60
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn consume_valid_tokens(&mut self, valid_tokens : &mut Iterator<Item=Discriminant<TokenType>>) -> bool {
[INFO] [stderr]    |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn consume_valid_tokens(&mut self, valid_tokens : &mut dyn Iterator<Item=Discriminant<TokenType>>) -> bool {
[INFO] [stderr]    |                                                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:108:57
[INFO] [stderr]     |
[INFO] [stderr] 108 |     fn execute_level(&mut self, valid_tokens : &mut Box<Iterator<Item=Discriminant<TokenType>>>, previous_exp : Exp,
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 108 |     fn execute_level(&mut self, valid_tokens : &mut Box<dyn Iterator<Item=Discriminant<TokenType>>>, previous_exp : Exp,
[INFO] [stderr]     |                                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:109:34
[INFO] [stderr]     |
[INFO] [stderr] 109 |         current_exp_generator : &Fn(&mut Parser, &Token, Exp) -> Result<Exp, String>) -> Result<Exp, String> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 109 |         current_exp_generator : &dyn Fn(&mut Parser, &Token, Exp) -> Result<Exp, String>) -> Result<Exp, String> {
[INFO] [stderr]     |                                  +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:18:43
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn matches(&self, valid_tokens : &mut Iterator<Item = Discriminant<TokenType>>) -> bool {
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn matches(&self, valid_tokens : &mut dyn Iterator<Item = Discriminant<TokenType>>) -> bool {
[INFO] [stderr]    |                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/scanner.rs:276:9
[INFO] [stderr]     |
[INFO] [stderr] 267 | /             match string.parse::<i64>() {
[INFO] [stderr] 268 | |                 Ok(result) => return Some(TokenType::Literal(Literal::NUMBER(result))),
[INFO] [stderr] 269 | |                 Err(_) => {
[INFO] [stderr] 270 | |                     self.errors.push(format!("Unable to parse number on line {}", self.line));
[INFO] [stderr] ...   |
[INFO] [stderr] 273 | |             }
[INFO] [stderr]     | |_____________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr] ...
[INFO] [stderr] 276 |           self.errors.push(format!("Unknown error parsing number on line {}", self.line));
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `character`
[INFO] [stderr]    --> src/scanner.rs:226:13
[INFO] [stderr]     |
[INFO] [stderr] 226 |             character @ '0'..='9' => {
[INFO] [stderr]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_character`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/interpreter.rs:40:28
[INFO] [stderr]    |
[INFO] [stderr] 40 |         stmts_success.map(|x| ())
[INFO] [stderr]    |                            ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/interpreter.rs:140:25
[INFO] [stderr]     |
[INFO] [stderr] 140 |                         x => {
[INFO] [stderr]     |                         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lexeme`
[INFO] [stderr]    --> src/interpreter.rs:106:51
[INFO] [stderr]     |
[INFO] [stderr] 106 |             Token { token_type: TokenType::MINUS, lexeme, line } => {
[INFO] [stderr]     |                                                   ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/interpreter.rs:106:59
[INFO] [stderr]     |
[INFO] [stderr] 106 |             Token { token_type: TokenType::MINUS, lexeme, line } => {
[INFO] [stderr]     |                                                           ^^^^ help: try ignoring the field: `line: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lexeme`
[INFO] [stderr]    --> src/interpreter.rs:110:51
[INFO] [stderr]     |
[INFO] [stderr] 110 |             Token { token_type: TokenType::SLASH, lexeme, line } => {
[INFO] [stderr]     |                                                   ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/interpreter.rs:110:59
[INFO] [stderr]     |
[INFO] [stderr] 110 |             Token { token_type: TokenType::SLASH, lexeme, line } => {
[INFO] [stderr]     |                                                           ^^^^ help: try ignoring the field: `line: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lexeme`
[INFO] [stderr]    --> src/interpreter.rs:114:50
[INFO] [stderr]     |
[INFO] [stderr] 114 |             Token { token_type: TokenType::STAR, lexeme, line } => {
[INFO] [stderr]     |                                                  ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/interpreter.rs:114:58
[INFO] [stderr]     |
[INFO] [stderr] 114 |             Token { token_type: TokenType::STAR, lexeme, line } => {
[INFO] [stderr]     |                                                          ^^^^ help: try ignoring the field: `line: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lexeme`
[INFO] [stderr]    --> src/interpreter.rs:118:53
[INFO] [stderr]     |
[INFO] [stderr] 118 |             Token { token_type: TokenType::GREATER, lexeme, line } => {
[INFO] [stderr]     |                                                     ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/interpreter.rs:118:61
[INFO] [stderr]     |
[INFO] [stderr] 118 |             Token { token_type: TokenType::GREATER, lexeme, line } => {
[INFO] [stderr]     |                                                             ^^^^ help: try ignoring the field: `line: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lexeme`
[INFO] [stderr]    --> src/interpreter.rs:122:58
[INFO] [stderr]     |
[INFO] [stderr] 122 |             Token { token_type: TokenType::GreaterEqual, lexeme, line } => {
[INFO] [stderr]     |                                                          ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/interpreter.rs:122:66
[INFO] [stderr]     |
[INFO] [stderr] 122 |             Token { token_type: TokenType::GreaterEqual, lexeme, line } => {
[INFO] [stderr]     |                                                                  ^^^^ help: try ignoring the field: `line: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lexeme`
[INFO] [stderr]    --> src/interpreter.rs:126:50
[INFO] [stderr]     |
[INFO] [stderr] 126 |             Token { token_type: TokenType::LESS, lexeme, line } => {
[INFO] [stderr]     |                                                  ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/interpreter.rs:126:58
[INFO] [stderr]     |
[INFO] [stderr] 126 |             Token { token_type: TokenType::LESS, lexeme, line } => {
[INFO] [stderr]     |                                                          ^^^^ help: try ignoring the field: `line: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lexeme`
[INFO] [stderr]    --> src/interpreter.rs:130:55
[INFO] [stderr]     |
[INFO] [stderr] 130 |             Token { token_type: TokenType::LessEqual, lexeme, line } => {
[INFO] [stderr]     |                                                       ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/interpreter.rs:130:63
[INFO] [stderr]     |
[INFO] [stderr] 130 |             Token { token_type: TokenType::LessEqual, lexeme, line } => {
[INFO] [stderr]     |                                                               ^^^^ help: try ignoring the field: `line: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lexeme`
[INFO] [stderr]    --> src/interpreter.rs:134:50
[INFO] [stderr]     |
[INFO] [stderr] 134 |             Token { token_type: TokenType::PLUS, lexeme, line } => {
[INFO] [stderr]     |                                                  ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/interpreter.rs:134:58
[INFO] [stderr]     |
[INFO] [stderr] 134 |             Token { token_type: TokenType::PLUS, lexeme, line } => {
[INFO] [stderr]     |                                                          ^^^^ help: try ignoring the field: `line: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lexeme`
[INFO] [stderr]    --> src/interpreter.rs:144:55
[INFO] [stderr]     |
[INFO] [stderr] 144 |             Token { token_type: TokenType::BangEqual, lexeme, line } => {
[INFO] [stderr]     |                                                       ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/interpreter.rs:144:63
[INFO] [stderr]     |
[INFO] [stderr] 144 |             Token { token_type: TokenType::BangEqual, lexeme, line } => {
[INFO] [stderr]     |                                                               ^^^^ help: try ignoring the field: `line: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lexeme`
[INFO] [stderr]    --> src/interpreter.rs:148:56
[INFO] [stderr]     |
[INFO] [stderr] 148 |             Token { token_type: TokenType::EqualEqual, lexeme, line } => {
[INFO] [stderr]     |                                                        ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/interpreter.rs:148:64
[INFO] [stderr]     |
[INFO] [stderr] 148 |             Token { token_type: TokenType::EqualEqual, lexeme, line } => {
[INFO] [stderr]     |                                                                ^^^^ help: try ignoring the field: `line: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lexeme`
[INFO] [stderr]    --> src/interpreter.rs:152:33
[INFO] [stderr]     |
[INFO] [stderr] 152 |             Token { token_type, lexeme, line } =>
[INFO] [stderr]     |                                 ^^^^^^ help: try ignoring the field: `lexeme: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/interpreter.rs:99:21
[INFO] [stderr]    |
[INFO] [stderr] 99 |                     x => {Err("Non-number values not supported with operator -".to_string())},
[INFO] [stderr]    |                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `l_other`
[INFO] [stderr]    --> src/interpreter.rs:188:13
[INFO] [stderr]     |
[INFO] [stderr] 188 |         (Ok(l_other), Err(r_other)) => Err(r_other),
[INFO] [stderr]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_l_other`
[INFO] [stderr] 
[INFO] [stderr] warning: `loxrust` (lib) generated 39 warnings (run `cargo fix --lib -p loxrust` to apply 38 suggestions)
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/parser.rs:295:32
[INFO] [stderr]     |
[INFO] [stderr] 295 |             Err(err) => panic!(err)
[INFO] [stderr]     |                                ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]     |
[INFO] [stderr] 295 |             Err(err) => panic!("{}", err)
[INFO] [stderr]     |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/parser.rs:332:32
[INFO] [stderr]     |
[INFO] [stderr] 332 |             Err(err) => panic!(err)
[INFO] [stderr]     |                                ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]     |
[INFO] [stderr] 332 |             Err(err) => panic!("{}", err)
[INFO] [stderr]     |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: `loxrust` (lib test) generated 41 warnings (39 duplicates) (run `cargo fix --lib -p loxrust --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/loxrust-7337a42b2d1dc36a)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test scanner::tests::equals_statement ... ok
[INFO] [stdout] test parser::tests::parse_expresion_with_brackets ... ok
[INFO] [stdout] test parser::tests::parse_valid_example_expression ... ok
[INFO] [stdout] test scanner::tests::scan_string ... ok
[INFO] [stdout] test scanner::tests::statement_with_brackets ... ok
[INFO] [stdout] test ast::tests::ast_printer_simple ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- ast::tests::ast_printer_simple stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'ast::tests::ast_printer_simple' (18) panicked at src/ast.rs:156:9:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: "(== (group foobar) 2);"
[INFO] [stdout]  right: "(== (group foobar) 2)"
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x61db33bd135a - std[fce30c26ee6459b]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x61db33bd135a - std[fce30c26ee6459b]::backtrace_rs::backtrace::trace_unsynchronized::<std[fce30c26ee6459b]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x61db33bd135a - std[fce30c26ee6459b]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x61db33bd135a - <<std[fce30c26ee6459b]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[d17f6591d688f3bd]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x61db33be539a - <core[d17f6591d688f3bd]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x61db33be539a - core[d17f6591d688f3bd]::fmt::write
[INFO] [stdout]    6:     0x61db33bd5c42 - std[fce30c26ee6459b]::io::default_write_fmt::<alloc[dad09f3a48280dba]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/io/mod.rs:621:11
[INFO] [stdout]    7:     0x61db33bd5c42 - <alloc[dad09f3a48280dba]::vec::Vec<u8> as std[fce30c26ee6459b]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/io/mod.rs:1976:13
[INFO] [stdout]    8:     0x61db33bb01cf - <std[fce30c26ee6459b]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x61db33bb01cf - std[fce30c26ee6459b]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x61db33bc9749 - std[fce30c26ee6459b]::panicking::default_hook
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x61db33b65b2c - <alloc[dad09f3a48280dba]::boxed::Box<dyn for<'a, 'b> core[d17f6591d688f3bd]::ops::function::Fn<(&'a std[fce30c26ee6459b]::panic::PanicHookInfo<'b>,), Output = ()> + core[d17f6591d688f3bd]::marker::Sync + core[d17f6591d688f3bd]::marker::Send> as core[d17f6591d688f3bd]::ops::function::Fn<(&std[fce30c26ee6459b]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/alloc/src/boxed.rs:2285:9
[INFO] [stdout]   12:     0x61db33b65b2c - test[9653f4f1d2ca1489]::test_main_inner::<test[9653f4f1d2ca1489]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x61db33bc9902 - <alloc[dad09f3a48280dba]::boxed::Box<dyn for<'a, 'b> core[d17f6591d688f3bd]::ops::function::Fn<(&'a std[fce30c26ee6459b]::panic::PanicHookInfo<'b>,), Output = ()> + core[d17f6591d688f3bd]::marker::Sync + core[d17f6591d688f3bd]::marker::Send> as core[d17f6591d688f3bd]::ops::function::Fn<(&std[fce30c26ee6459b]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/alloc/src/boxed.rs:2285:9
[INFO] [stdout]   14:     0x61db33bc9902 - std[fce30c26ee6459b]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x61db33bb0288 - std[fce30c26ee6459b]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x61db33ba5469 - std[fce30c26ee6459b]::sys::backtrace::__rust_end_short_backtrace::<std[fce30c26ee6459b]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x61db33bb0f9d - __rustc[de152adb51f02556]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x61db33be5b2c - core[d17f6591d688f3bd]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x61db33be59e3 - core[d17f6591d688f3bd]::panicking::assert_failed_inner
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/core/src/panicking.rs:439:17
[INFO] [stdout]   20:     0x61db33b51cf1 - core[d17f6591d688f3bd]::panicking::assert_failed::<alloc[dad09f3a48280dba]::string::String, alloc[dad09f3a48280dba]::string::String>
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/core/src/panicking.rs:394:5
[INFO] [stdout]   21:     0x61db33b53bbb - loxrust[c000935f8aa9832b]::ast::tests::ast_printer_simple
[INFO] [stdout]                                at /opt/rustwide/workdir/src/ast.rs:156:9
[INFO] [stdout]   22:     0x61db33b52cd7 - loxrust[c000935f8aa9832b]::ast::tests::ast_printer_simple::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/ast.rs:136:28
[INFO] [stdout]   23:     0x61db33b58636 - <loxrust[c000935f8aa9832b]::ast::tests::ast_printer_simple::{closure#0} as core[d17f6591d688f3bd]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x61db33b58e0b - <fn() -> core[d17f6591d688f3bd]::result::Result<(), alloc[dad09f3a48280dba]::string::String> as core[d17f6591d688f3bd]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x61db33b58e0b - test[9653f4f1d2ca1489]::__rust_begin_short_backtrace::<core[d17f6591d688f3bd]::result::Result<(), alloc[dad09f3a48280dba]::string::String>, fn() -> core[d17f6591d688f3bd]::result::Result<(), alloc[dad09f3a48280dba]::string::String>>
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/test/src/lib.rs:724:18
[INFO] [stdout]   26:     0x61db33b665fb - test[9653f4f1d2ca1489]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/test/src/lib.rs:747:74
[INFO] [stdout]   27:     0x61db33b665fb - <core[d17f6591d688f3bd]::panic::unwind_safe::AssertUnwindSafe<test[9653f4f1d2ca1489]::run_test_in_process::{closure#0}> as core[d17f6591d688f3bd]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   28:     0x61db33b665fb - std[fce30c26ee6459b]::panicking::catch_unwind::do_call::<core[d17f6591d688f3bd]::panic::unwind_safe::AssertUnwindSafe<test[9653f4f1d2ca1489]::run_test_in_process::{closure#0}>, core[d17f6591d688f3bd]::result::Result<(), alloc[dad09f3a48280dba]::string::String>>
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x61db33b665fb - std[fce30c26ee6459b]::panicking::catch_unwind::<core[d17f6591d688f3bd]::result::Result<(), alloc[dad09f3a48280dba]::string::String>, core[d17f6591d688f3bd]::panic::unwind_safe::AssertUnwindSafe<test[9653f4f1d2ca1489]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x61db33b665fb - std[fce30c26ee6459b]::panic::catch_unwind::<core[d17f6591d688f3bd]::panic::unwind_safe::AssertUnwindSafe<test[9653f4f1d2ca1489]::run_test_in_process::{closure#0}>, core[d17f6591d688f3bd]::result::Result<(), alloc[dad09f3a48280dba]::string::String>>
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x61db33b665fb - test[9653f4f1d2ca1489]::run_test_in_process
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/test/src/lib.rs:747:27
[INFO] [stdout]   32:     0x61db33b665fb - test[9653f4f1d2ca1489]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/test/src/lib.rs:668:43
[INFO] [stdout]   33:     0x61db33b5fd14 - test[9653f4f1d2ca1489]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/test/src/lib.rs:698:41
[INFO] [stdout]   34:     0x61db33b5fd14 - std[fce30c26ee6459b]::sys::backtrace::__rust_begin_short_backtrace::<test[9653f4f1d2ca1489]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x61db33b69202 - std[fce30c26ee6459b]::thread::lifecycle::spawn_unchecked::<test[9653f4f1d2ca1489]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   36:     0x61db33b69202 - <core[d17f6591d688f3bd]::panic::unwind_safe::AssertUnwindSafe<std[fce30c26ee6459b]::thread::lifecycle::spawn_unchecked<test[9653f4f1d2ca1489]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[d17f6591d688f3bd]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   37:     0x61db33b69202 - std[fce30c26ee6459b]::panicking::catch_unwind::do_call::<core[d17f6591d688f3bd]::panic::unwind_safe::AssertUnwindSafe<std[fce30c26ee6459b]::thread::lifecycle::spawn_unchecked<test[9653f4f1d2ca1489]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x61db33b69202 - std[fce30c26ee6459b]::panicking::catch_unwind::<(), core[d17f6591d688f3bd]::panic::unwind_safe::AssertUnwindSafe<std[fce30c26ee6459b]::thread::lifecycle::spawn_unchecked<test[9653f4f1d2ca1489]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x61db33b69202 - std[fce30c26ee6459b]::panic::catch_unwind::<core[d17f6591d688f3bd]::panic::unwind_safe::AssertUnwindSafe<std[fce30c26ee6459b]::thread::lifecycle::spawn_unchecked<test[9653f4f1d2ca1489]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x61db33b69202 - std[fce30c26ee6459b]::thread::lifecycle::spawn_unchecked::<test[9653f4f1d2ca1489]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   41:     0x61db33b69202 - <std[fce30c26ee6459b]::thread::lifecycle::spawn_unchecked<test[9653f4f1d2ca1489]::run_test::{closure#1}, ()>::{closure#1} as core[d17f6591d688f3bd]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x61db33bd0c6f - <alloc[dad09f3a48280dba]::boxed::Box<dyn core[d17f6591d688f3bd]::ops::function::FnOnce<(), Output = ()> + core[d17f6591d688f3bd]::marker::Send> as core[d17f6591d688f3bd]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/alloc/src/boxed.rs:2271:9
[INFO] [stdout]   43:     0x61db33bd0c6f - <std[fce30c26ee6459b]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   44:     0x726a75648aa4 - <unknown>
[INFO] [stdout]   45:     0x726a756d5a64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     ast::tests::ast_printer_simple
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 5 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "8a6f55a50dbd7d6974b7d25098156e52609793a93ea39daaf1d746307b9452ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a6f55a50dbd7d6974b7d25098156e52609793a93ea39daaf1d746307b9452ba", kill_on_drop: false }`
[INFO] [stdout] 8a6f55a50dbd7d6974b7d25098156e52609793a93ea39daaf1d746307b9452ba
