[INFO] cloning repository https://github.com/mariosangiorgio/rulox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mariosangiorgio/rulox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmariosangiorgio%2Frulox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmariosangiorgio%2Frulox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9e9e44f1143aa74b62e43452a35cd4786aecabcf
[INFO] checking mariosangiorgio/rulox against try#e622d8d7bed4f2668d446e06c6c1436ecae15796 for pr-156776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmariosangiorgio%2Frulox" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mariosangiorgio/rulox
[INFO] finished tweaking git repo https://github.com/mariosangiorgio/rulox
[INFO] tweaked toml for git repo https://github.com/mariosangiorgio/rulox written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mariosangiorgio/rulox on toolchain e622d8d7bed4f2668d446e06c6c1436ecae15796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e622d8d7bed4f2668d446e06c6c1436ecae15796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mariosangiorgio/rulox 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" "+e622d8d7bed4f2668d446e06c6c1436ecae15796" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+e622d8d7bed4f2668d446e06c6c1436ecae15796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b050f8ebb48488c80228454775fddb9d281df489df5e47b64d897770c771213
[INFO] running `Command { std: "docker" "start" "-a" "7b050f8ebb48488c80228454775fddb9d281df489df5e47b64d897770c771213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b050f8ebb48488c80228454775fddb9d281df489df5e47b64d897770c771213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b050f8ebb48488c80228454775fddb9d281df489df5e47b64d897770c771213", kill_on_drop: false }`
[INFO] [stdout] 7b050f8ebb48488c80228454775fddb9d281df489df5e47b64d897770c771213
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+e622d8d7bed4f2668d446e06c6c1436ecae15796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 488d522d41661a582133e5b855650e77c014214ecfbd9b9525ba9ba358ed9f40
[INFO] running `Command { std: "docker" "start" "-a" "488d522d41661a582133e5b855650e77c014214ecfbd9b9525ba9ba358ed9f40", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking bit-vec v0.5.0
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]     Checking bit-set v0.5.0
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking wait-timeout v0.1.5
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.15.14
[INFO] [stderr]     Checking tempfile v3.0.4
[INFO] [stderr]     Checking rusty-fork v0.2.1
[INFO] [stderr]     Checking proptest v0.8.7
[INFO] [stderr]     Checking rulox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/frontend/scanner.rs:156:58
[INFO] [stdout]     |
[INFO] [stdout] 156 |                 self.current_position.increment_column();;
[INFO] [stdout]     |                                                          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/treewalk/interpreter.rs:94:21
[INFO] [stdout]    |
[INFO] [stdout] 94 |                     try!(
[INFO] [stdout]    |                     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/treewalk/interpreter.rs:301:52
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn interpret(&self, environment: &Environment, &LexicalScopes) -> Result<Value, RuntimeError>;
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &LexicalScopes`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout]     = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/interpreter.rs:357:33
[INFO] [stdout]     |
[INFO] [stdout] 357 |                     let value = try!(s.value.interpret(environment, scopes));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/interpreter.rs:419:21
[INFO] [stdout]     |
[INFO] [stdout] 419 |         let value = try!(self.right.interpret(environment, scopes));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/interpreter.rs:436:20
[INFO] [stdout]     |
[INFO] [stdout] 436 |         let left = try!(self.left.interpret(environment, scopes));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/interpreter.rs:437:21
[INFO] [stdout]     |
[INFO] [stdout] 437 |         let right = try!(self.right.interpret(environment, scopes));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/interpreter.rs:488:28
[INFO] [stdout]     |
[INFO] [stdout] 488 |                 let left = try!(self.left.interpret(environment, scopes));
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/interpreter.rs:496:28
[INFO] [stdout]     |
[INFO] [stdout] 496 |                 let left = try!(self.left.interpret(environment, scopes));
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/interpreter.rs:565:34
[INFO] [stdout]     |
[INFO] [stdout] 565 |                     let result = try!(statement.execute(&environment, scopes));
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/interpreter.rs:573:33
[INFO] [stdout]     |
[INFO] [stdout] 573 |                 let condition = try!{c.condition.interpret(environment, scopes)
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/interpreter.rs:582:33
[INFO] [stdout]     |
[INFO] [stdout] 582 |                 let condition = try!{c.condition.interpret(environment, scopes)
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/interpreter.rs:591:23
[INFO] [stdout]     |
[INFO] [stdout] 591 |                 while try!{l.condition.interpret(environment, scopes)
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/interpreter.rs:594:21
[INFO] [stdout]     |
[INFO] [stdout] 594 |                     try!{l.body.execute(environment, scopes)};
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/interpreter.rs:610:37
[INFO] [stdout]     |
[INFO] [stdout] 610 |                         let value = try!(superclass.interpret(environment, scopes));
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/treewalk/lexical_scope_resolver.rs:35:23
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn resolve(&self, &mut LexicalScopesResolver) -> Result<(), LexicalScopesResolutionError>;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut LexicalScopesResolver`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/lexical_scope_resolver.rs:149:21
[INFO] [stdout]     |
[INFO] [stdout] 149 |                     try!(statement.resolve(resolver));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/lexical_scope_resolver.rs:155:17
[INFO] [stdout]     |
[INFO] [stdout] 155 |                 try!(resolver.declare(*identifier));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/lexical_scope_resolver.rs:160:17
[INFO] [stdout]     |
[INFO] [stdout] 160 |                 try!(resolver.declare(*identifier));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/lexical_scope_resolver.rs:161:17
[INFO] [stdout]     |
[INFO] [stdout] 161 |                 try!(initializer.resolve(resolver));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/lexical_scope_resolver.rs:167:17
[INFO] [stdout]     |
[INFO] [stdout] 167 |                 try!(resolver.declare(c.name));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/lexical_scope_resolver.rs:173:21
[INFO] [stdout]     |
[INFO] [stdout] 173 |                     try!(superclass.resolve(resolver));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/lexical_scope_resolver.rs:180:21
[INFO] [stdout]     |
[INFO] [stdout] 180 |                     try!(method.resolve(resolver));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/lexical_scope_resolver.rs:270:17
[INFO] [stdout]     |
[INFO] [stdout] 270 |                 try!(e.callee.resolve(resolver));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/lexical_scope_resolver.rs:272:21
[INFO] [stdout]     |
[INFO] [stdout] 272 |                     try!(argument.resolve(resolver));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/lexical_scope_resolver.rs:277:17
[INFO] [stdout]     |
[INFO] [stdout] 277 |                 try!(g.instance.resolve(resolver));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/lexical_scope_resolver.rs:281:17
[INFO] [stdout]     |
[INFO] [stdout] 281 |                 try!(s.value.resolve(resolver));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/lexical_scope_resolver.rs:282:17
[INFO] [stdout]     |
[INFO] [stdout] 282 |                 try!(s.instance.resolve(resolver));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/lexical_scope_resolver.rs:294:9
[INFO] [stdout]     |
[INFO] [stdout] 294 |         try!{self.rvalue.resolve(resolver)};
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/lexical_scope_resolver.rs:306:9
[INFO] [stdout]     |
[INFO] [stdout] 306 |         try!(resolver.declare(self.name));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/lexical_scope_resolver.rs:315:9
[INFO] [stdout]     |
[INFO] [stdout] 315 |         try!(self.body.resolve(resolver));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/lexical_scope_resolver.rs:312:13
[INFO] [stdout]     |
[INFO] [stdout] 312 |             try!(resolver.declare(*argument));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/treewalk/parser.rs:136:10
[INFO] [stdout]     |
[INFO] [stdout] 136 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/treewalk/parser.rs:315:10
[INFO] [stdout]     |
[INFO] [stdout] 315 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/treewalk/parser.rs:385:10
[INFO] [stdout]     |
[INFO] [stdout] 385 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/parser.rs:950:9
[INFO] [stdout]     |
[INFO] [stdout] 950 |         try!(consume_expected_token!(
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/treewalk/parser.rs:976:9
[INFO] [stdout]     |
[INFO] [stdout] 976 |         try!(consume_expected_token!(
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/vm/bytecode.rs:142:5
[INFO] [stdout]     |
[INFO] [stdout] 142 |     try!(writeln!(out, "== {} ==", name));
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/vm/bytecode.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |         try!(write!(out, "{:04}", i));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/vm/bytecode.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 |         try!(write!(out, " "));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/vm/bytecode.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 156 |         try!{disassemble_instruction(instruction, chunk, out)};
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/vm/bytecode.rs:150:13
[INFO] [stdout]     |
[INFO] [stdout] 150 |             try!(write!(out, "   |"));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/vm/bytecode.rs:153:13
[INFO] [stdout]     |
[INFO] [stdout] 153 |             try!(write!(out, "{:4}", line));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/frontend/scanner.rs:130:38
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn peek_check(&mut self, check: &Fn(char) -> bool) -> 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]     = 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] 130 |     fn peek_check(&mut self, check: &dyn Fn(char) -> bool) -> bool {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/frontend/scanner.rs:138:40
[INFO] [stdout]     |
[INFO] [stdout] 138 |     fn peek_check2(&mut self, check1: &Fn(char) -> bool, check2: &Fn(char) -> bool) -> 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] 138 |     fn peek_check2(&mut self, check1: &dyn Fn(char) -> bool, check2: &Fn(char) -> bool) -> bool {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/frontend/scanner.rs:138:67
[INFO] [stdout]     |
[INFO] [stdout] 138 |     fn peek_check2(&mut self, check1: &Fn(char) -> bool, check2: &Fn(char) -> bool) -> 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] 138 |     fn peek_check2(&mut self, check1: &Fn(char) -> bool, check2: &dyn Fn(char) -> bool) -> bool {
[INFO] [stdout]     |                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/frontend/scanner.rs:171:45
[INFO] [stdout]     |
[INFO] [stdout] 171 |     fn advance_while(&mut self, condition: &Fn(char) -> 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] 171 |     fn advance_while(&mut self, condition: &dyn Fn(char) -> bool) -> () {
[INFO] [stdout]     |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/treewalk/parser.rs:170:27
[INFO] [stdout]     |
[INFO] [stdout] 170 |           parse_statement: &Fn(&mut Parser, &mut Peekable<I>)
[INFO] [stdout]     |  ___________________________^
[INFO] [stdout] 171 | |             -> Option<Result<Statement, ParseError>>,
[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] 170 |         parse_statement: &dyn Fn(&mut Parser, &mut Peekable<I>)
[INFO] [stdout]     |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/treewalk/parser.rs:646:24
[INFO] [stdout]     |
[INFO] [stdout] 646 |         map_operator: &Fn(&Token) -> Option<LogicOperator>,
[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] 646 |         map_operator: &dyn Fn(&Token) -> Option<LogicOperator>,
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/treewalk/parser.rs:647:31
[INFO] [stdout]     |
[INFO] [stdout] 647 |         parse_subexpression: &Fn(&mut Parser, &mut Peekable<I>) -> Option<Result<Expr, ParseError>>,
[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] 647 |         parse_subexpression: &dyn Fn(&mut Parser, &mut Peekable<I>) -> Option<Result<Expr, ParseError>>,
[INFO] [stdout]     |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/treewalk/parser.rs:688:24
[INFO] [stdout]     |
[INFO] [stdout] 688 |         map_operator: &Fn(&Token) -> Option<BinaryOperator>,
[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] 688 |         map_operator: &dyn Fn(&Token) -> Option<BinaryOperator>,
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/treewalk/parser.rs:689:31
[INFO] [stdout]     |
[INFO] [stdout] 689 |         parse_subexpression: &Fn(&mut Parser, &mut Peekable<I>) -> Option<Result<Expr, ParseError>>,
[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] 689 |         parse_subexpression: &dyn Fn(&mut Parser, &mut Peekable<I>) -> Option<Result<Expr, ParseError>>,
[INFO] [stdout]     |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/treewalk/parser.rs:945:26
[INFO] [stdout]     |
[INFO] [stdout] 945 |         parse_argument: &Fn(&mut Parser, &mut Peekable<I>) -> Option<Result<A, ParseError>>,
[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] 945 |         parse_argument: &dyn Fn(&mut Parser, &mut Peekable<I>) -> Option<Result<A, ParseError>>,
[INFO] [stdout]     |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: lifetime may not live long enough
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proptest-0.8.7/src/arbitrary/_core/iter.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl<'a, T: 'static + Clone, A: fmt::Debug + 'static + Iterator<Item = &'a T>>
[INFO] [stdout]    |      -- lifetime `'a` defined here
[INFO] [stdout] ...
[INFO] [stdout] 44 |         base.prop_map(Iterator::cloned).boxed()
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ requires that `'a` must outlive `'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/treewalk/mod.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |     InputError(Vec<InputError>),
[INFO] [stdout]    |     ---------- ^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LoxError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 16 -     InputError(Vec<InputError>),
[INFO] [stdout] 16 +     InputError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/treewalk/mod.rs:17:34
[INFO] [stdout]    |
[INFO] [stdout] 17 |     LexicalScopesResolutionError(Vec<LexicalScopesResolutionError>),
[INFO] [stdout]    |     ---------------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LoxError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 17 -     LexicalScopesResolutionError(Vec<LexicalScopesResolutionError>),
[INFO] [stdout] 17 +     LexicalScopesResolutionError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/treewalk/mod.rs:18:18
[INFO] [stdout]    |
[INFO] [stdout] 18 |     RuntimeError(RuntimeError),
[INFO] [stdout]    |     ------------ ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LoxError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 18 -     RuntimeError(RuntimeError),
[INFO] [stdout] 18 +     RuntimeError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/treewalk/mod.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     ScannerError(scanner::ScannerError),
[INFO] [stdout]    |     ------------ ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `InputError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 23 -     ScannerError(scanner::ScannerError),
[INFO] [stdout] 23 +     ScannerError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/treewalk/mod.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |     ParserError(ParseError),
[INFO] [stdout]    |     ----------- ^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `InputError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 24 -     ParserError(ParseError),
[INFO] [stdout] 24 +     ParserError(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `lookup` is never used
[INFO] [stdout]   --> src/treewalk/ast.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 54 | impl IdentifierMap {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 77 |     pub fn lookup(&self, identifier: Identifier) -> Option<&String> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/treewalk/interpreter.rs:291:28
[INFO] [stdout]     |
[INFO] [stdout] 291 |     UnaryMinusTypeMismatch(Value),
[INFO] [stdout]     |     ---------------------- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RuntimeError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 291 -     UnaryMinusTypeMismatch(Value),
[INFO] [stdout] 291 +     UnaryMinusTypeMismatch(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]    --> src/treewalk/interpreter.rs:292:32
[INFO] [stdout]     |
[INFO] [stdout] 292 |     BinaryOperatorTypeMismatch(BinaryOperator, Value, Value),
[INFO] [stdout]     |     -------------------------- ^^^^^^^^^^^^^^  ^^^^^  ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     fields in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RuntimeError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]     |
[INFO] [stdout] 292 -     BinaryOperatorTypeMismatch(BinaryOperator, Value, Value),
[INFO] [stdout] 292 +     BinaryOperatorTypeMismatch((), (), ()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/treewalk/interpreter.rs:293:25
[INFO] [stdout]     |
[INFO] [stdout] 293 |     UndefinedIdentifier(Identifier),
[INFO] [stdout]     |     ------------------- ^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RuntimeError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 293 -     UndefinedIdentifier(Identifier),
[INFO] [stdout] 293 +     UndefinedIdentifier(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/treewalk/interpreter.rs:294:17
[INFO] [stdout]     |
[INFO] [stdout] 294 |     NotCallable(Value),
[INFO] [stdout]     |     ----------- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RuntimeError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 294 -     NotCallable(Value),
[INFO] [stdout] 294 +     NotCallable(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/treewalk/interpreter.rs:295:19
[INFO] [stdout]     |
[INFO] [stdout] 295 |     NotAnInstance(Value),
[INFO] [stdout]     |     ------------- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RuntimeError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 295 -     NotAnInstance(Value),
[INFO] [stdout] 295 +     NotAnInstance(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/treewalk/interpreter.rs:296:15
[INFO] [stdout]     |
[INFO] [stdout] 296 |     NotAClass(Value),
[INFO] [stdout]     |     --------- ^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RuntimeError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 296 -     NotAClass(Value),
[INFO] [stdout] 296 +     NotAClass(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/treewalk/parser.rs:61:21
[INFO] [stdout]    |
[INFO] [stdout] 61 |     UnexpectedToken(Lexeme, Position),
[INFO] [stdout]    |     --------------- ^^^^^^  ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 61 -     UnexpectedToken(Lexeme, Position),
[INFO] [stdout] 61 +     UnexpectedToken((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> src/treewalk/parser.rs:62:13
[INFO] [stdout]    |
[INFO] [stdout] 62 |     Missing(RequiredElement, Lexeme, Position),
[INFO] [stdout]    |     ------- ^^^^^^^^^^^^^^^  ^^^^^^  ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 62 -     Missing(RequiredElement, Lexeme, Position),
[INFO] [stdout] 62 +     Missing((), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/treewalk/parser.rs:63:29
[INFO] [stdout]    |
[INFO] [stdout] 63 |     InvalidAssignmentTarget(Lexeme, Position),
[INFO] [stdout]    |     ----------------------- ^^^^^^  ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 63 -     InvalidAssignmentTarget(Lexeme, Position),
[INFO] [stdout] 63 +     InvalidAssignmentTarget((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `PrettyPrint` is never used
[INFO] [stdout]  --> src/treewalk/pretty_printer.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait PrettyPrint {
[INFO] [stdout]   |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/frontend/scanner.rs:122:39
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn initialize(source: &'a str) -> Scanner {
[INFO] [stdout]     |                            --         ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn initialize(source: &'a str) -> Scanner<'a> {
[INFO] [stdout]     |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/vm/compiler.rs:22:33
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[derive(PartialEq, PartialOrd, FromPrimitive, ToPrimitive, Clone, Copy)]
[INFO] [stdout]    |                                 ^------------
[INFO] [stdout]    |                                 |
[INFO] [stdout]    |                                 `FromPrimitive` is not local
[INFO] [stdout]    |                                 move the `impl` block outside of this constant `_IMPL_NUM_FROMPRIMITIVE_FOR_PRECEDENCE`
[INFO] [stdout] 23 | enum Precedence {
[INFO] [stdout]    |      ---------- `Precedence` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `FromPrimitive` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `FromPrimitive` may come from an old version of the `num_derive` crate, try updating your dependency with `cargo update -p num_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `FromPrimitive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/vm/compiler.rs:22:48
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[derive(PartialEq, PartialOrd, FromPrimitive, ToPrimitive, Clone, Copy)]
[INFO] [stdout]    |                                                ^----------
[INFO] [stdout]    |                                                |
[INFO] [stdout]    |                                                `ToPrimitive` is not local
[INFO] [stdout]    |                                                move the `impl` block outside of this constant `_IMPL_NUM_TOPRIMITIVE_FOR_PRECEDENCE`
[INFO] [stdout] 23 | enum Precedence {
[INFO] [stdout]    |      ---------- `Precedence` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `ToPrimitive` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `ToPrimitive` may come from an old version of the `num_derive` crate, try updating your dependency with `cargo update -p num_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `ToPrimitive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/vm/compiler.rs:64:48
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn new(chunk: &'a mut Chunk, tokens: I) -> Parser<I> {
[INFO] [stdout]    |                    --                          ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn new(chunk: &'a mut Chunk, tokens: I) -> Parser<'a, I> {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proptest` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "488d522d41661a582133e5b855650e77c014214ecfbd9b9525ba9ba358ed9f40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "488d522d41661a582133e5b855650e77c014214ecfbd9b9525ba9ba358ed9f40", kill_on_drop: false }`
[INFO] [stdout] 488d522d41661a582133e5b855650e77c014214ecfbd9b9525ba9ba358ed9f40
