[INFO] cloning repository https://github.com/nilq/sabri
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nilq/sabri" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnilq%2Fsabri", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnilq%2Fsabri'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0c1918e28f1cd29be9e927dc31308c81665ff259
[INFO] testing nilq/sabri against 1.75.0 for beta-1.76-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnilq%2Fsabri" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nilq/sabri on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nilq/sabri
[INFO] finished tweaking git repo https://github.com/nilq/sabri
[INFO] tweaked toml for git repo https://github.com/nilq/sabri written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/nilq/sabri 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thread_local v0.3.3
[INFO] [stderr]   Downloaded nix v0.5.1
[INFO] [stderr]   Downloaded thread-id v3.1.0
[INFO] [stderr]   Downloaded lazy_static v0.2.8
[INFO] [stderr]   Downloaded rustyline v1.0.0
[INFO] [stderr]   Downloaded aho-corasick v0.6.3
[INFO] [stderr]   Downloaded regex v0.2.2
[INFO] [stderr]   Downloaded libc v0.2.23
[INFO] [stderr]   Downloaded regex-syntax v0.4.1
[INFO] [stderr]   Downloaded encode_unicode v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 60d94a7acfd3be857e32416b782920c990fe41588acea0d610a2895372bdbe59
[INFO] running `Command { std: "docker" "start" "-a" "60d94a7acfd3be857e32416b782920c990fe41588acea0d610a2895372bdbe59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60d94a7acfd3be857e32416b782920c990fe41588acea0d610a2895372bdbe59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60d94a7acfd3be857e32416b782920c990fe41588acea0d610a2895372bdbe59", kill_on_drop: false }`
[INFO] [stdout] 60d94a7acfd3be857e32416b782920c990fe41588acea0d610a2895372bdbe59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a81acfb9044b2561e55ec09749d1adee3e85c8b5c3f6cba1760818515611b80
[INFO] running `Command { std: "docker" "start" "-a" "6a81acfb9044b2561e55ec09749d1adee3e85c8b5c3f6cba1760818515611b80", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.23
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling regex-syntax v0.4.1
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling unicode-width v0.1.4
[INFO] [stderr]    Compiling lazy_static v0.2.8
[INFO] [stderr]    Compiling encode_unicode v0.1.3
[INFO] [stderr]    Compiling unreachable v0.1.1
[INFO] [stderr]    Compiling thread-id v3.1.0
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling thread_local v0.3.3
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling rustyline v1.0.0
[INFO] [stderr]    Compiling docopt v0.7.0
[INFO] [stderr]    Compiling sabri v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ChunkValue`, `Chunk`
[INFO] [stdout]   --> src/sabri/syntax/lexer/mod.rs:11:39
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use self::block_tree::{BlockTree, Chunk, ChunkValue};
[INFO] [stdout]    |                                       ^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `flatten_branch`, `lex_branch`, `lexer`
[INFO] [stdout]   --> src/sabri/syntax/lexer/mod.rs:13:23
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub use self::lexer::{lexer, lex_branch, flatten_branch, process_branch};
[INFO] [stdout]    |                       ^^^^^  ^^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sabri::bytecode`
[INFO] [stdout]  --> src/sabri/syntax/parser/ast.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use sabri::bytecode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/syntax/parser/ast.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 try!(func.compile(sym, program));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/syntax/parser/ast.rs:75:21
[INFO] [stdout]    |
[INFO] [stdout] 75 |                     try!(a.compile(sym, program))
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/syntax/parser/ast.rs:91:48
[INFO] [stdout]    |
[INFO] [stdout] 91 | ...                   Some(ref e) => try!(e.compile(&cur_sym, program)),
[INFO] [stdout]    |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:109:30
[INFO] [stdout]     |
[INFO] [stdout] 109 |                         _ => try!(statement.compile(&cur_sym, program)),
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:115:37
[INFO] [stdout]     |
[INFO] [stdout] 115 |                 &Operand::Assign => try!(Self::compile_assignment(&*left, &*right, sym, program)),
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:121:25
[INFO] [stdout]     |
[INFO] [stdout] 121 |                         try!(left.compile(sym, program));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:122:25
[INFO] [stdout]     |
[INFO] [stdout] 122 |                         try!(right.compile(sym, program));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:142:25
[INFO] [stdout]     |
[INFO] [stdout] 142 |                         try!(left.compile(sym, program));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:143:25
[INFO] [stdout]     |
[INFO] [stdout] 143 |                         try!(right.compile(sym, program));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:161:21
[INFO] [stdout]     |
[INFO] [stdout] 161 |                     try!(value.compile(sym, program));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:216:9
[INFO] [stdout]     |
[INFO] [stdout] 216 |         try!(Expression::Block(self.block.clone()).compile(&new_sym, program));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:224:9
[INFO] [stdout]     |
[INFO] [stdout] 224 |         try!(program.close_func_context(end));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ParserErrorValue`
[INFO] [stdout]  --> src/sabri/syntax/parser/parser.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | use parser::{ParserError, ParserErrorValue};
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/syntax/parser/parser.rs:23:24
[INFO] [stdout]    |
[INFO] [stdout] 23 |             stack.push(try!(self.statement()));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/syntax/parser/parser.rs:39:62
[INFO] [stdout]    |
[INFO] [stdout] 39 |                     return Ok(Statement::Expression(Box::new(try!(self.expression()))))
[INFO] [stdout]    |                                                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/syntax/parser/parser.rs:47:33
[INFO] [stdout]    |
[INFO] [stdout] 47 |                     let value = try!(self.expression());
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/syntax/parser/parser.rs:57:52
[INFO] [stdout]    |
[INFO] [stdout] 57 |             _ => Ok(Statement::Expression(Box::new(try!(self.expression())))),
[INFO] [stdout]    |                                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/syntax/parser/parser.rs:66:81
[INFO] [stdout]    |
[INFO] [stdout] 66 |                     TokenType::Block(_) => return Ok(Expression::Block(Box::new(try!(self.block())))),
[INFO] [stdout]    |                                                                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/parser.rs:102:32
[INFO] [stdout]     |
[INFO] [stdout] 102 |                     let expr = try!(self.expression());
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/parser.rs:142:59
[INFO] [stdout]     |
[INFO] [stdout] 142 |                 let lambda = Lambda::new(params, Box::new(try!(self.block())));
[INFO] [stdout]     |                                                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/parser.rs:161:24
[INFO] [stdout]     |
[INFO] [stdout] 161 |             stack.push(try!(self.expression()));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/parser.rs:181:20
[INFO] [stdout]     |
[INFO] [stdout] 181 |                 Ok(try!(p.parse()))
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/parser.rs:192:20
[INFO] [stdout]     |
[INFO] [stdout] 192 |         let expr = try!(self.term());
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/parser.rs:215:23
[INFO] [stdout]     |
[INFO] [stdout] 215 |         ex_stack.push(try!(self.term()));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/parser.rs:240:35
[INFO] [stdout]     |
[INFO] [stdout] 240 |                     ex_stack.push(try!(self.term()));
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/parser.rs:248:31
[INFO] [stdout]     |
[INFO] [stdout] 248 |                 ex_stack.push(try!(self.term()));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::lexer`
[INFO] [stdout]   --> src/sabri/syntax/parser/mod.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub use super::lexer;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::bytecode::TokenPosition`
[INFO] [stdout]  --> src/sabri/bytecode/gen.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use self::bytecode::TokenPosition;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Addr`
[INFO] [stdout]   --> src/sabri/bytecode/run.rs:11:22
[INFO] [stdout]    |
[INFO] [stdout] 11 | use self::bytecode::{Addr, INVALID};
[INFO] [stdout]    |                      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/bytecode/run.rs:170:39
[INFO] [stdout]     |
[INFO] [stdout] 170 | ...                   let ret = try!(f.call(&self.val_stack[args_pos..], &self.env));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/bytecode/run.rs:204:41
[INFO] [stdout]     |
[INFO] [stdout] 204 |                     self.val_stack.push(try!(result));
[INFO] [stdout]     |                                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FixupContext`
[INFO] [stdout]  --> src/sabri/bytecode/mod.rs:8:21
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use self::gen::{FixupContext, Program};
[INFO] [stdout]   |                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::syntax`
[INFO] [stdout]   --> src/sabri/bytecode/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use super::syntax;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `RefCell`, `Ref`
[INFO] [stdout]  --> src/sabri/value.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::{Ref, RefCell};
[INFO] [stdout]   |                 ^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sabri::Value`
[INFO] [stdout]  --> src/sabri/error.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use sabri::Value;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/env.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |             try!(p.dump(f, env_index - 1));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/env.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |             try!(writeln!(f, "------------------------------"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/env.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |             try!(writeln!(f, "<{}@{}> {}", i, env_index, v))
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/env.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |         try!(self.dump(f, 0));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/native.rs:55:16
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let left = try!(get_arg(args, 0));
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/native.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let right = try!(get_arg(args, 1));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/native.rs:73:16
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let left = try!(get_arg(args, 0));
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/native.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let right = try!(get_arg(args, 1));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:100:16
[INFO] [stdout]     |
[INFO] [stdout] 100 |     let left = try!(get_arg(args, 0));
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:101:17
[INFO] [stdout]     |
[INFO] [stdout] 101 |     let right = try!(get_arg(args, 1));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:133:15
[INFO] [stdout]     |
[INFO] [stdout] 133 |     let arg = try!(get_arg(args, 0));
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:167:40
[INFO] [stdout]     |
[INFO] [stdout] 167 |                         print!("{:x}", try!(try!(get_arg(args, next_arg)).as_int()));
[INFO] [stdout]     |                                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:167:45
[INFO] [stdout]     |
[INFO] [stdout] 167 |                         print!("{:x}", try!(try!(get_arg(args, next_arg)).as_int()));
[INFO] [stdout]     |                                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:171:38
[INFO] [stdout]     |
[INFO] [stdout] 171 |                         print!("{}", try!(try!(get_arg(args, next_arg)).as_int()));
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:171:43
[INFO] [stdout]     |
[INFO] [stdout] 171 |                         print!("{}", try!(try!(get_arg(args, next_arg)).as_int()));
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:175:38
[INFO] [stdout]     |
[INFO] [stdout] 175 |                         print!("{}", try!(try!(get_arg(args, next_arg)).as_float()));
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:175:43
[INFO] [stdout]     |
[INFO] [stdout] 175 |                         print!("{}", try!(try!(get_arg(args, next_arg)).as_float()));
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:179:38
[INFO] [stdout]     |
[INFO] [stdout] 179 |                         print!("{}", try!(get_arg(args, next_arg)));
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:222:15
[INFO] [stdout]     |
[INFO] [stdout] 222 |     let val = try!(get_arg(args, 0));
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:227:20
[INFO] [stdout]     |
[INFO] [stdout] 227 |     Ok(Value::Bool(try!(cmp_eq(args))))
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:231:21
[INFO] [stdout]     |
[INFO] [stdout] 231 |     Ok(Value::Bool(!try!(cmp_eq(args))))
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:235:20
[INFO] [stdout]     |
[INFO] [stdout] 235 |     Ok(Value::Bool(try!(cmp_order(args, cmp_lt_num, cmp_lt_str))))
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:239:20
[INFO] [stdout]     |
[INFO] [stdout] 239 |     Ok(Value::Bool(try!(cmp_order(args, cmp_le_num, cmp_le_str))))
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:243:21
[INFO] [stdout]     |
[INFO] [stdout] 243 |     Ok(Value::Bool(!try!(cmp_order(args, cmp_le_num, cmp_le_str))))
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:247:21
[INFO] [stdout]     |
[INFO] [stdout] 247 |     Ok(Value::Bool(!try!(cmp_order(args, cmp_lt_num, cmp_lt_str))))
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:251:22
[INFO] [stdout]     |
[INFO] [stdout] 251 |     Ok(Value::Number(try!(bin_arithmetic(args, num_add, "+"))))
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:256:33
[INFO] [stdout]     |
[INFO] [stdout] 256 |         return Ok(Value::Number(try!(un_arithmetic(args, num_neg, "-"))));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:258:22
[INFO] [stdout]     |
[INFO] [stdout] 258 |     Ok(Value::Number(try!(bin_arithmetic(args, num_sub, "-"))))
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:262:22
[INFO] [stdout]     |
[INFO] [stdout] 262 |     Ok(Value::Number(try!(bin_arithmetic(args, num_mul, "*"))))
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:266:22
[INFO] [stdout]     |
[INFO] [stdout] 266 |     Ok(Value::Number(try!(bin_arithmetic(args, num_div, "/"))))
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:270:22
[INFO] [stdout]     |
[INFO] [stdout] 270 |     Ok(Value::Number(try!(bin_arithmetic(args, num_pow, "^"))))
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:274:22
[INFO] [stdout]     |
[INFO] [stdout] 274 |     Ok(Value::Number(try!(bin_arithmetic(args, num_mod, "%"))))
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sabri::Env`
[INFO] [stdout]  --> src/sabri/symtab.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use sabri::Env;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RunErrorValue`
[INFO] [stdout]   --> src/sabri/mod.rs:16:33
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub use self::error::{RunError, RunErrorValue};
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/sabri/syntax/lexer/lexer.rs:128:23
[INFO] [stdout]     |
[INFO] [stdout] 128 |     matchers: Vec<Box<Matcher>>,
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 128 |     matchers: Vec<Box<dyn Matcher>>,
[INFO] [stdout]     |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sabri/syntax/lexer/tokenizer.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn new(items: &mut Iterator<Item = char>) -> Tokenizer {
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn new(items: &mut dyn Iterator<Item = char>) -> Tokenizer {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/sabri/syntax/lexer/tokenizer.rs:112:49
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn try_match_token(&mut self, matcher: &Matcher) -> Option<Token> {
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn try_match_token(&mut self, matcher: &dyn Matcher) -> Option<Token> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/sabri/syntax/lexer/lexer.rs:150:40
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn matchers(&self) -> &Vec<Box<Matcher>> {
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn matchers(&self) -> &Vec<Box<dyn Matcher>> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/sabri/syntax/lexer/lexer.rs:154:52
[INFO] [stdout]     |
[INFO] [stdout] 154 |     pub fn matchers_mut(&mut self) -> &mut Vec<Box<Matcher>> {
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 154 |     pub fn matchers_mut(&mut self) -> &mut Vec<Box<dyn Matcher>> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:49:66
[INFO] [stdout]    |
[INFO] [stdout] 49 |         Err(why) => panic!("failed to open {}: {}", display, why.description()),
[INFO] [stdout]    |                                                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:55:67
[INFO] [stdout]    |
[INFO] [stdout] 55 |         Err(why) => panic!("failed to read {}: {}", display,  why.description()),
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]   --> src/sabri/syntax/parser/ast.rs:69:36
[INFO] [stdout]    |
[INFO] [stdout] 69 |             Expression::Lambda(ref l) => return Ok(()),
[INFO] [stdout]    |                                    ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `fix_newenv_addr` is assigned to, but never used
[INFO] [stdout]   --> src/sabri/syntax/parser/ast.rs:85:25
[INFO] [stdout]    |
[INFO] [stdout] 85 |                 let mut fix_newenv_addr = 0;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_fix_newenv_addr` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `fix_newenv_addr` is never read
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:103:33
[INFO] [stdout]     |
[INFO] [stdout] 103 | ...                   fix_newenv_addr = program.addr();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/sabri/syntax/parser/ast.rs:84:21
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 let mut env_vars = 0;
[INFO] [stdout]    |                     ----^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:251:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] 250 |
[INFO] [stdout] 251 |                 OP_NEWENV => {
[INFO] [stdout]     |                 ^^^^^^^^^ unreachable pattern
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:257:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 257 |                 OP_POPENV => print!("popenv     {}", instr::d_op_12(instr)),
[INFO] [stdout]     |                 ^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:259:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 259 |                 OP_GETVAR => {
[INFO] [stdout]     |                 ^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:265:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 265 |                 OP_SETVAR => {
[INFO] [stdout]     |                 ^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:271:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 271 |                 OP_GETELEM => print!("getelem    "),
[INFO] [stdout]     |                 ^^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:272:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 272 |                 OP_SETELEM => print!("setelem    "),
[INFO] [stdout]     |                 ^^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:273:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 273 |                 OP_PUSHLIT => print!("pushlit    {}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:275:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 275 |                 OP_ADD => print!("add        "),
[INFO] [stdout]     |                 ^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:276:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 276 |                 OP_SUB => print!("sub        "),
[INFO] [stdout]     |                 ^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:277:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 277 |                 OP_MUL => print!("mul        "),
[INFO] [stdout]     |                 ^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:278:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 278 |                 OP_DIV => print!("div        "),
[INFO] [stdout]     |                 ^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:280:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 280 |                 OP_TEST => print!("test       "),
[INFO] [stdout]     |                 ^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:281:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 281 |                 OP_JMP => print!("jmp        {:08x}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:282:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 282 |                 OP_JT => print!("jt         {:08x}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:283:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 283 |                 OP_JF => print!("jf         {:08x}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:285:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 285 |                 OP_CALL => print!("call       {}", instr::d_op_12(instr)),
[INFO] [stdout]     |                 ^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:286:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 286 |                 OP_RET => print!("ret        "),
[INFO] [stdout]     |                 ^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:288:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 288 |                 OP_POPVAL => print!("popval     {}", instr::d_op_12(instr)),
[INFO] [stdout]     |                 ^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:290:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 290 |                 _ => print!("???        "),
[INFO] [stdout]     |                 ^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_HALT`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:249:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_HALT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_NEWENV`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:251:17
[INFO] [stdout]     |
[INFO] [stdout] 251 |                 OP_NEWENV => {
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_NEWENV`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_POPENV`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:257:17
[INFO] [stdout]     |
[INFO] [stdout] 257 |                 OP_POPENV => print!("popenv     {}", instr::d_op_12(instr)),
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_POPENV`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_GETVAR`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:259:17
[INFO] [stdout]     |
[INFO] [stdout] 259 |                 OP_GETVAR => {
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_GETVAR`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_SETVAR`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:265:17
[INFO] [stdout]     |
[INFO] [stdout] 265 |                 OP_SETVAR => {
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_SETVAR`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_GETELEM`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:271:17
[INFO] [stdout]     |
[INFO] [stdout] 271 |                 OP_GETELEM => print!("getelem    "),
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_GETELEM`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_SETELEM`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:272:17
[INFO] [stdout]     |
[INFO] [stdout] 272 |                 OP_SETELEM => print!("setelem    "),
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_SETELEM`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_PUSHLIT`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:273:17
[INFO] [stdout]     |
[INFO] [stdout] 273 |                 OP_PUSHLIT => print!("pushlit    {}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_PUSHLIT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_ADD`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:275:17
[INFO] [stdout]     |
[INFO] [stdout] 275 |                 OP_ADD => print!("add        "),
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_ADD`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_SUB`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:276:17
[INFO] [stdout]     |
[INFO] [stdout] 276 |                 OP_SUB => print!("sub        "),
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_SUB`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_MUL`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:277:17
[INFO] [stdout]     |
[INFO] [stdout] 277 |                 OP_MUL => print!("mul        "),
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_MUL`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_DIV`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:278:17
[INFO] [stdout]     |
[INFO] [stdout] 278 |                 OP_DIV => print!("div        "),
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_DIV`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_TEST`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:280:17
[INFO] [stdout]     |
[INFO] [stdout] 280 |                 OP_TEST => print!("test       "),
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_TEST`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_JMP`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:281:17
[INFO] [stdout]     |
[INFO] [stdout] 281 |                 OP_JMP => print!("jmp        {:08x}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_JMP`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_JT`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:282:17
[INFO] [stdout]     |
[INFO] [stdout] 282 |                 OP_JT => print!("jt         {:08x}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_JT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_JF`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:283:17
[INFO] [stdout]     |
[INFO] [stdout] 283 |                 OP_JF => print!("jf         {:08x}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_JF`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_CALL`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:285:17
[INFO] [stdout]     |
[INFO] [stdout] 285 |                 OP_CALL => print!("call       {}", instr::d_op_12(instr)),
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_CALL`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_RET`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:286:17
[INFO] [stdout]     |
[INFO] [stdout] 286 |                 OP_RET => print!("ret        "),
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_RET`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_POPVAL`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:288:17
[INFO] [stdout]     |
[INFO] [stdout] 288 |                 OP_POPVAL => print!("popval     {}", instr::d_op_12(instr)),
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_POPVAL`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/sabri/native.rs:150:17
[INFO] [stdout]     |
[INFO] [stdout] 150 |     if let Some(v) = args.get(0) {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_var` is never used
[INFO] [stdout]   --> src/sabri/mod.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl Sabri {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn get_var(&self, var: &str) -> Option<Value> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Lambda` is never constructed
[INFO] [stdout]   --> src/sabri/syntax/parser/ast.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Expression {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 20 |     Lambda(Lambda),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expression` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Assignment` is never constructed
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:184:5
[INFO] [stdout]     |
[INFO] [stdout] 178 | pub enum Statement {
[INFO] [stdout]     |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 184 |     Assignment(Box<Expression>, Box<Expression>),
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Statement` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `params` and `block` are never read
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:198:5
[INFO] [stdout]     |
[INFO] [stdout] 197 | pub struct Lambda {
[INFO] [stdout]     |            ------ fields in this struct
[INFO] [stdout] 198 |     params: Vec<Rc<String>>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 199 |     block:  Box<Vec<Statement>>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Lambda` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `compile` is never used
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:209:12
[INFO] [stdout]     |
[INFO] [stdout] 202 | impl Lambda {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 209 |     pub fn compile(&self, sym: &Rc<SymTab>, program: &mut Program) -> ParserResult<(u32, usize)> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `def` are never read
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:232:5
[INFO] [stdout]     |
[INFO] [stdout] 231 | pub struct Function {
[INFO] [stdout]     |            -------- fields in this struct
[INFO] [stdout] 232 |     name: Rc<String>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 233 |     def:  Rc<Lambda>,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Function` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `compile` is never used
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:243:12
[INFO] [stdout]     |
[INFO] [stdout] 236 | impl Function {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 243 |     pub fn compile(&self, sym: &Rc<SymTab>, program: &mut Program) -> ParserResult<(u32, usize)> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PUSHENV` is never used
[INFO] [stdout]  --> src/sabri/bytecode/op.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub const PUSHENV: u8 = 1;
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GETELEM` is never used
[INFO] [stdout]  --> src/sabri/bytecode/op.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub const GETELEM: u8 = 5;
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SETELEM` is never used
[INFO] [stdout]  --> src/sabri/bytecode/op.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const SETELEM: u8 = 6;
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f_op_12_12` is never used
[INFO] [stdout]   --> src/sabri/bytecode/instr.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn f_op_12_12(instr : u32, t1 : u16, t2 : u16) -> u32 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f_op_26` is never used
[INFO] [stdout]   --> src/sabri/bytecode/instr.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn f_op_26(instr : u32, t : u32) -> u32 {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add`, and `close` are never used
[INFO] [stdout]   --> src/sabri/bytecode/gen.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl FixupContext {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] 20 |     pub fn new(init_level: u32) -> FixupContext {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn add(&mut self, instr_addr: Addr) -> ParserResult<()> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn close(self, instr: &mut [u32], fixed_addr: Addr) -> ParserResult<()> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `while_context` and `func_context` are never read
[INFO] [stdout]   --> src/sabri/bytecode/gen.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct Program {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 44 |     while_context: Vec<FixupContext>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 45 |     func_context: Vec<FixupContext>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:70:12
[INFO] [stdout]     |
[INFO] [stdout] 53  | impl Program {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 70  |     pub fn add_label(&mut self, addr: Addr, comment: &str) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78  |     pub fn decrement_env_level(&mut self, n: u32) -> ParserResult<()> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 87  |     pub fn get_env_level(&mut self) -> u32 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 91  |     pub fn set_env_level(&mut self, n: u32) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn new_func_context(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 111 |     pub fn close_func_context(&mut self, fixed_addr: Addr) -> ParserResult<()> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 |     pub fn add_return_fixup(&mut self, addr: Addr) -> ParserResult<()> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |     pub fn new_while_context(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 130 |     pub fn close_while_context(&mut self, fixed_addr: Addr) -> ParserResult<()> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     pub fn add_break_fixup(&mut self, addr: Addr) -> ParserResult<()> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 144 |     pub fn get_while_env_level(&self) -> ParserResult<u32> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 152 |     pub fn fix_newenv(&mut self, instr_addr: Addr, n_vals: u16, n_total: u16) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 157 |     pub fn fix_jump(&mut self, instr_addr: Addr, target_addr: Addr) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |     pub fn emit_halt(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     pub fn emit_popenv(&mut self, envs: u16) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 182 |     pub fn emit_getelem(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 210 |     pub fn emit_test(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 214 |     pub fn emit_jmp(&mut self, addr: Addr) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 222 |     pub fn emit_jf(&mut self, addr: Addr) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 230 |     pub fn emit_ret(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 234 |     pub fn emit_popval(&mut self, values: u16) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `reset` is never used
[INFO] [stdout]   --> src/sabri/bytecode/run.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl Run {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn reset(&mut self, env: Rc<Env>) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/sabri/bytecode/closure.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Closure {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 16 |     pub fn new(addr: Addr, num_params: usize, env: Rc<Env>) -> Closure {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Closure` is never constructed
[INFO] [stdout]   --> src/sabri/value.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub enum Value {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 15 |     Closure(bytecode::Closure),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_string` is never used
[INFO] [stdout]   --> src/sabri/value.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Value {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn as_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_pos` is never used
[INFO] [stdout]   --> src/sabri/error.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl RunError {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn new_pos(position: TokenPosition, value: &str) -> RunError {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/sabri/env.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Env {
[INFO] [stdout]    | -------- associated function in this implementation
[INFO] [stdout] 14 |     pub fn new(parent: Rc<Env>, values: &[Value]) -> Env {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func_dump_env` is never used
[INFO] [stdout]    --> src/sabri/native.rs:144:8
[INFO] [stdout]     |
[INFO] [stdout] 144 | pub fn func_dump_env(_args: &[Value], env: &Rc<Env>) -> RunResult<Value> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func_error` is never used
[INFO] [stdout]    --> src/sabri/native.rs:149:8
[INFO] [stdout]     |
[INFO] [stdout] 149 | pub fn func_error(args: &[Value], _env: &Rc<Env>) -> RunResult<Value> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/sabri/syntax/parser/parser.rs:104:21
[INFO] [stdout]     |
[INFO] [stdout] 104 |                     self.traveler.expect_content(")");
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 104 |                     let _ = self.traveler.expect_content(")");
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_HALT` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:249:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ^^^^^^^ help: convert the identifier to snake case: `op_halt`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_NEWENV` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:251:17
[INFO] [stdout]     |
[INFO] [stdout] 251 |                 OP_NEWENV => {
[INFO] [stdout]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `op_newenv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_POPENV` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:257:17
[INFO] [stdout]     |
[INFO] [stdout] 257 |                 OP_POPENV => print!("popenv     {}", instr::d_op_12(instr)),
[INFO] [stdout]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `op_popenv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_GETVAR` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:259:17
[INFO] [stdout]     |
[INFO] [stdout] 259 |                 OP_GETVAR => {
[INFO] [stdout]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `op_getvar`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_SETVAR` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:265:17
[INFO] [stdout]     |
[INFO] [stdout] 265 |                 OP_SETVAR => {
[INFO] [stdout]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `op_setvar`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_GETELEM` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:271:17
[INFO] [stdout]     |
[INFO] [stdout] 271 |                 OP_GETELEM => print!("getelem    "),
[INFO] [stdout]     |                 ^^^^^^^^^^ help: convert the identifier to snake case: `op_getelem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_SETELEM` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:272:17
[INFO] [stdout]     |
[INFO] [stdout] 272 |                 OP_SETELEM => print!("setelem    "),
[INFO] [stdout]     |                 ^^^^^^^^^^ help: convert the identifier to snake case: `op_setelem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_PUSHLIT` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:273:17
[INFO] [stdout]     |
[INFO] [stdout] 273 |                 OP_PUSHLIT => print!("pushlit    {}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^^^^^^ help: convert the identifier to snake case: `op_pushlit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_ADD` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:275:17
[INFO] [stdout]     |
[INFO] [stdout] 275 |                 OP_ADD => print!("add        "),
[INFO] [stdout]     |                 ^^^^^^ help: convert the identifier to snake case: `op_add`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_SUB` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:276:17
[INFO] [stdout]     |
[INFO] [stdout] 276 |                 OP_SUB => print!("sub        "),
[INFO] [stdout]     |                 ^^^^^^ help: convert the identifier to snake case: `op_sub`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_MUL` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:277:17
[INFO] [stdout]     |
[INFO] [stdout] 277 |                 OP_MUL => print!("mul        "),
[INFO] [stdout]     |                 ^^^^^^ help: convert the identifier to snake case: `op_mul`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_DIV` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:278:17
[INFO] [stdout]     |
[INFO] [stdout] 278 |                 OP_DIV => print!("div        "),
[INFO] [stdout]     |                 ^^^^^^ help: convert the identifier to snake case: `op_div`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_TEST` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:280:17
[INFO] [stdout]     |
[INFO] [stdout] 280 |                 OP_TEST => print!("test       "),
[INFO] [stdout]     |                 ^^^^^^^ help: convert the identifier to snake case: `op_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_JMP` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:281:17
[INFO] [stdout]     |
[INFO] [stdout] 281 |                 OP_JMP => print!("jmp        {:08x}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^^ help: convert the identifier to snake case: `op_jmp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_JT` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:282:17
[INFO] [stdout]     |
[INFO] [stdout] 282 |                 OP_JT => print!("jt         {:08x}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^ help: convert the identifier to snake case: `op_jt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_JF` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:283:17
[INFO] [stdout]     |
[INFO] [stdout] 283 |                 OP_JF => print!("jf         {:08x}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^ help: convert the identifier to snake case: `op_jf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_CALL` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:285:17
[INFO] [stdout]     |
[INFO] [stdout] 285 |                 OP_CALL => print!("call       {}", instr::d_op_12(instr)),
[INFO] [stdout]     |                 ^^^^^^^ help: convert the identifier to snake case: `op_call`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_RET` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:286:17
[INFO] [stdout]     |
[INFO] [stdout] 286 |                 OP_RET => print!("ret        "),
[INFO] [stdout]     |                 ^^^^^^ help: convert the identifier to snake case: `op_ret`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_POPVAL` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:288:17
[INFO] [stdout]     |
[INFO] [stdout] 288 |                 OP_POPVAL => print!("popval     {}", instr::d_op_12(instr)),
[INFO] [stdout]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `op_popval`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 166 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.27s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "6a81acfb9044b2561e55ec09749d1adee3e85c8b5c3f6cba1760818515611b80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a81acfb9044b2561e55ec09749d1adee3e85c8b5c3f6cba1760818515611b80", kill_on_drop: false }`
[INFO] [stdout] 6a81acfb9044b2561e55ec09749d1adee3e85c8b5c3f6cba1760818515611b80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5271f6355e0aefced47dbedc435d0d6f9c30b28e1b0aacaaea44a374be42d776
[INFO] running `Command { std: "docker" "start" "-a" "5271f6355e0aefced47dbedc435d0d6f9c30b28e1b0aacaaea44a374be42d776", kill_on_drop: false }`
[INFO] [stderr]    Compiling sabri v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ChunkValue`, `Chunk`
[INFO] [stdout]   --> src/sabri/syntax/lexer/mod.rs:11:39
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use self::block_tree::{BlockTree, Chunk, ChunkValue};
[INFO] [stdout]    |                                       ^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `flatten_branch`, `lex_branch`, `lexer`
[INFO] [stdout]   --> src/sabri/syntax/lexer/mod.rs:13:23
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub use self::lexer::{lexer, lex_branch, flatten_branch, process_branch};
[INFO] [stdout]    |                       ^^^^^  ^^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sabri::bytecode`
[INFO] [stdout]  --> src/sabri/syntax/parser/ast.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use sabri::bytecode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/syntax/parser/ast.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 try!(func.compile(sym, program));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/syntax/parser/ast.rs:75:21
[INFO] [stdout]    |
[INFO] [stdout] 75 |                     try!(a.compile(sym, program))
[INFO] [stdout]    |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/syntax/parser/ast.rs:91:48
[INFO] [stdout]    |
[INFO] [stdout] 91 | ...                   Some(ref e) => try!(e.compile(&cur_sym, program)),
[INFO] [stdout]    |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:109:30
[INFO] [stdout]     |
[INFO] [stdout] 109 |                         _ => try!(statement.compile(&cur_sym, program)),
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:115:37
[INFO] [stdout]     |
[INFO] [stdout] 115 |                 &Operand::Assign => try!(Self::compile_assignment(&*left, &*right, sym, program)),
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:121:25
[INFO] [stdout]     |
[INFO] [stdout] 121 |                         try!(left.compile(sym, program));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:122:25
[INFO] [stdout]     |
[INFO] [stdout] 122 |                         try!(right.compile(sym, program));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:142:25
[INFO] [stdout]     |
[INFO] [stdout] 142 |                         try!(left.compile(sym, program));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:143:25
[INFO] [stdout]     |
[INFO] [stdout] 143 |                         try!(right.compile(sym, program));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:161:21
[INFO] [stdout]     |
[INFO] [stdout] 161 |                     try!(value.compile(sym, program));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:216:9
[INFO] [stdout]     |
[INFO] [stdout] 216 |         try!(Expression::Block(self.block.clone()).compile(&new_sym, program));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:224:9
[INFO] [stdout]     |
[INFO] [stdout] 224 |         try!(program.close_func_context(end));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ParserErrorValue`
[INFO] [stdout]  --> src/sabri/syntax/parser/parser.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | use parser::{ParserError, ParserErrorValue};
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/syntax/parser/parser.rs:23:24
[INFO] [stdout]    |
[INFO] [stdout] 23 |             stack.push(try!(self.statement()));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/syntax/parser/parser.rs:39:62
[INFO] [stdout]    |
[INFO] [stdout] 39 |                     return Ok(Statement::Expression(Box::new(try!(self.expression()))))
[INFO] [stdout]    |                                                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/syntax/parser/parser.rs:47:33
[INFO] [stdout]    |
[INFO] [stdout] 47 |                     let value = try!(self.expression());
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/syntax/parser/parser.rs:57:52
[INFO] [stdout]    |
[INFO] [stdout] 57 |             _ => Ok(Statement::Expression(Box::new(try!(self.expression())))),
[INFO] [stdout]    |                                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/syntax/parser/parser.rs:66:81
[INFO] [stdout]    |
[INFO] [stdout] 66 |                     TokenType::Block(_) => return Ok(Expression::Block(Box::new(try!(self.block())))),
[INFO] [stdout]    |                                                                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/parser.rs:102:32
[INFO] [stdout]     |
[INFO] [stdout] 102 |                     let expr = try!(self.expression());
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/parser.rs:142:59
[INFO] [stdout]     |
[INFO] [stdout] 142 |                 let lambda = Lambda::new(params, Box::new(try!(self.block())));
[INFO] [stdout]     |                                                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/parser.rs:161:24
[INFO] [stdout]     |
[INFO] [stdout] 161 |             stack.push(try!(self.expression()));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/parser.rs:181:20
[INFO] [stdout]     |
[INFO] [stdout] 181 |                 Ok(try!(p.parse()))
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/parser.rs:192:20
[INFO] [stdout]     |
[INFO] [stdout] 192 |         let expr = try!(self.term());
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/parser.rs:215:23
[INFO] [stdout]     |
[INFO] [stdout] 215 |         ex_stack.push(try!(self.term()));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/parser.rs:240:35
[INFO] [stdout]     |
[INFO] [stdout] 240 |                     ex_stack.push(try!(self.term()));
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/syntax/parser/parser.rs:248:31
[INFO] [stdout]     |
[INFO] [stdout] 248 |                 ex_stack.push(try!(self.term()));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::lexer`
[INFO] [stdout]   --> src/sabri/syntax/parser/mod.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub use super::lexer;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::bytecode::TokenPosition`
[INFO] [stdout]  --> src/sabri/bytecode/gen.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use self::bytecode::TokenPosition;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Addr`
[INFO] [stdout]   --> src/sabri/bytecode/run.rs:11:22
[INFO] [stdout]    |
[INFO] [stdout] 11 | use self::bytecode::{Addr, INVALID};
[INFO] [stdout]    |                      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/bytecode/run.rs:170:39
[INFO] [stdout]     |
[INFO] [stdout] 170 | ...                   let ret = try!(f.call(&self.val_stack[args_pos..], &self.env));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/bytecode/run.rs:204:41
[INFO] [stdout]     |
[INFO] [stdout] 204 |                     self.val_stack.push(try!(result));
[INFO] [stdout]     |                                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FixupContext`
[INFO] [stdout]  --> src/sabri/bytecode/mod.rs:8:21
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use self::gen::{FixupContext, Program};
[INFO] [stdout]   |                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::syntax`
[INFO] [stdout]   --> src/sabri/bytecode/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use super::syntax;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `RefCell`, `Ref`
[INFO] [stdout]  --> src/sabri/value.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::{Ref, RefCell};
[INFO] [stdout]   |                 ^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sabri::Value`
[INFO] [stdout]  --> src/sabri/error.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use sabri::Value;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/env.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |             try!(p.dump(f, env_index - 1));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/env.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |             try!(writeln!(f, "------------------------------"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/env.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |             try!(writeln!(f, "<{}@{}> {}", i, env_index, v))
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/env.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |         try!(self.dump(f, 0));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/native.rs:55:16
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let left = try!(get_arg(args, 0));
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/native.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let right = try!(get_arg(args, 1));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/native.rs:73:16
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let left = try!(get_arg(args, 0));
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/sabri/native.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let right = try!(get_arg(args, 1));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:100:16
[INFO] [stdout]     |
[INFO] [stdout] 100 |     let left = try!(get_arg(args, 0));
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:101:17
[INFO] [stdout]     |
[INFO] [stdout] 101 |     let right = try!(get_arg(args, 1));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:133:15
[INFO] [stdout]     |
[INFO] [stdout] 133 |     let arg = try!(get_arg(args, 0));
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:167:40
[INFO] [stdout]     |
[INFO] [stdout] 167 |                         print!("{:x}", try!(try!(get_arg(args, next_arg)).as_int()));
[INFO] [stdout]     |                                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:167:45
[INFO] [stdout]     |
[INFO] [stdout] 167 |                         print!("{:x}", try!(try!(get_arg(args, next_arg)).as_int()));
[INFO] [stdout]     |                                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:171:38
[INFO] [stdout]     |
[INFO] [stdout] 171 |                         print!("{}", try!(try!(get_arg(args, next_arg)).as_int()));
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:171:43
[INFO] [stdout]     |
[INFO] [stdout] 171 |                         print!("{}", try!(try!(get_arg(args, next_arg)).as_int()));
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:175:38
[INFO] [stdout]     |
[INFO] [stdout] 175 |                         print!("{}", try!(try!(get_arg(args, next_arg)).as_float()));
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:175:43
[INFO] [stdout]     |
[INFO] [stdout] 175 |                         print!("{}", try!(try!(get_arg(args, next_arg)).as_float()));
[INFO] [stdout]     |                                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:179:38
[INFO] [stdout]     |
[INFO] [stdout] 179 |                         print!("{}", try!(get_arg(args, next_arg)));
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:222:15
[INFO] [stdout]     |
[INFO] [stdout] 222 |     let val = try!(get_arg(args, 0));
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:227:20
[INFO] [stdout]     |
[INFO] [stdout] 227 |     Ok(Value::Bool(try!(cmp_eq(args))))
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:231:21
[INFO] [stdout]     |
[INFO] [stdout] 231 |     Ok(Value::Bool(!try!(cmp_eq(args))))
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:235:20
[INFO] [stdout]     |
[INFO] [stdout] 235 |     Ok(Value::Bool(try!(cmp_order(args, cmp_lt_num, cmp_lt_str))))
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:239:20
[INFO] [stdout]     |
[INFO] [stdout] 239 |     Ok(Value::Bool(try!(cmp_order(args, cmp_le_num, cmp_le_str))))
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:243:21
[INFO] [stdout]     |
[INFO] [stdout] 243 |     Ok(Value::Bool(!try!(cmp_order(args, cmp_le_num, cmp_le_str))))
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:247:21
[INFO] [stdout]     |
[INFO] [stdout] 247 |     Ok(Value::Bool(!try!(cmp_order(args, cmp_lt_num, cmp_lt_str))))
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:251:22
[INFO] [stdout]     |
[INFO] [stdout] 251 |     Ok(Value::Number(try!(bin_arithmetic(args, num_add, "+"))))
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:256:33
[INFO] [stdout]     |
[INFO] [stdout] 256 |         return Ok(Value::Number(try!(un_arithmetic(args, num_neg, "-"))));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:258:22
[INFO] [stdout]     |
[INFO] [stdout] 258 |     Ok(Value::Number(try!(bin_arithmetic(args, num_sub, "-"))))
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:262:22
[INFO] [stdout]     |
[INFO] [stdout] 262 |     Ok(Value::Number(try!(bin_arithmetic(args, num_mul, "*"))))
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:266:22
[INFO] [stdout]     |
[INFO] [stdout] 266 |     Ok(Value::Number(try!(bin_arithmetic(args, num_div, "/"))))
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:270:22
[INFO] [stdout]     |
[INFO] [stdout] 270 |     Ok(Value::Number(try!(bin_arithmetic(args, num_pow, "^"))))
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/sabri/native.rs:274:22
[INFO] [stdout]     |
[INFO] [stdout] 274 |     Ok(Value::Number(try!(bin_arithmetic(args, num_mod, "%"))))
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sabri::Env`
[INFO] [stdout]  --> src/sabri/symtab.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use sabri::Env;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RunErrorValue`
[INFO] [stdout]   --> src/sabri/mod.rs:16:33
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub use self::error::{RunError, RunErrorValue};
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/sabri/syntax/lexer/lexer.rs:128:23
[INFO] [stdout]     |
[INFO] [stdout] 128 |     matchers: Vec<Box<Matcher>>,
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 128 |     matchers: Vec<Box<dyn Matcher>>,
[INFO] [stdout]     |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sabri/syntax/lexer/tokenizer.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn new(items: &mut Iterator<Item = char>) -> Tokenizer {
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn new(items: &mut dyn Iterator<Item = char>) -> Tokenizer {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/sabri/syntax/lexer/tokenizer.rs:112:49
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn try_match_token(&mut self, matcher: &Matcher) -> Option<Token> {
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn try_match_token(&mut self, matcher: &dyn Matcher) -> Option<Token> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/sabri/syntax/lexer/lexer.rs:150:40
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn matchers(&self) -> &Vec<Box<Matcher>> {
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn matchers(&self) -> &Vec<Box<dyn Matcher>> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/sabri/syntax/lexer/lexer.rs:154:52
[INFO] [stdout]     |
[INFO] [stdout] 154 |     pub fn matchers_mut(&mut self) -> &mut Vec<Box<Matcher>> {
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 154 |     pub fn matchers_mut(&mut self) -> &mut Vec<Box<dyn Matcher>> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:49:66
[INFO] [stdout]    |
[INFO] [stdout] 49 |         Err(why) => panic!("failed to open {}: {}", display, why.description()),
[INFO] [stdout]    |                                                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:55:67
[INFO] [stdout]    |
[INFO] [stdout] 55 |         Err(why) => panic!("failed to read {}: {}", display,  why.description()),
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `l`
[INFO] [stdout]   --> src/sabri/syntax/parser/ast.rs:69:36
[INFO] [stdout]    |
[INFO] [stdout] 69 |             Expression::Lambda(ref l) => return Ok(()),
[INFO] [stdout]    |                                    ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `fix_newenv_addr` is assigned to, but never used
[INFO] [stdout]   --> src/sabri/syntax/parser/ast.rs:85:25
[INFO] [stdout]    |
[INFO] [stdout] 85 |                 let mut fix_newenv_addr = 0;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_fix_newenv_addr` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `fix_newenv_addr` is never read
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:103:33
[INFO] [stdout]     |
[INFO] [stdout] 103 | ...                   fix_newenv_addr = program.addr();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/sabri/syntax/parser/ast.rs:84:21
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 let mut env_vars = 0;
[INFO] [stdout]    |                     ----^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:251:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] 250 |
[INFO] [stdout] 251 |                 OP_NEWENV => {
[INFO] [stdout]     |                 ^^^^^^^^^ unreachable pattern
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:257:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 257 |                 OP_POPENV => print!("popenv     {}", instr::d_op_12(instr)),
[INFO] [stdout]     |                 ^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:259:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 259 |                 OP_GETVAR => {
[INFO] [stdout]     |                 ^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:265:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 265 |                 OP_SETVAR => {
[INFO] [stdout]     |                 ^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:271:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 271 |                 OP_GETELEM => print!("getelem    "),
[INFO] [stdout]     |                 ^^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:272:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 272 |                 OP_SETELEM => print!("setelem    "),
[INFO] [stdout]     |                 ^^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:273:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 273 |                 OP_PUSHLIT => print!("pushlit    {}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:275:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 275 |                 OP_ADD => print!("add        "),
[INFO] [stdout]     |                 ^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:276:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 276 |                 OP_SUB => print!("sub        "),
[INFO] [stdout]     |                 ^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:277:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 277 |                 OP_MUL => print!("mul        "),
[INFO] [stdout]     |                 ^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:278:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 278 |                 OP_DIV => print!("div        "),
[INFO] [stdout]     |                 ^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:280:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 280 |                 OP_TEST => print!("test       "),
[INFO] [stdout]     |                 ^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:281:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 281 |                 OP_JMP => print!("jmp        {:08x}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:282:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 282 |                 OP_JT => print!("jt         {:08x}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:283:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 283 |                 OP_JF => print!("jf         {:08x}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:285:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 285 |                 OP_CALL => print!("call       {}", instr::d_op_12(instr)),
[INFO] [stdout]     |                 ^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:286:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 286 |                 OP_RET => print!("ret        "),
[INFO] [stdout]     |                 ^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:288:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 288 |                 OP_POPVAL => print!("popval     {}", instr::d_op_12(instr)),
[INFO] [stdout]     |                 ^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:290:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 290 |                 _ => print!("???        "),
[INFO] [stdout]     |                 ^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_HALT`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:249:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_HALT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_NEWENV`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:251:17
[INFO] [stdout]     |
[INFO] [stdout] 251 |                 OP_NEWENV => {
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_NEWENV`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_POPENV`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:257:17
[INFO] [stdout]     |
[INFO] [stdout] 257 |                 OP_POPENV => print!("popenv     {}", instr::d_op_12(instr)),
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_POPENV`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_GETVAR`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:259:17
[INFO] [stdout]     |
[INFO] [stdout] 259 |                 OP_GETVAR => {
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_GETVAR`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_SETVAR`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:265:17
[INFO] [stdout]     |
[INFO] [stdout] 265 |                 OP_SETVAR => {
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_SETVAR`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_GETELEM`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:271:17
[INFO] [stdout]     |
[INFO] [stdout] 271 |                 OP_GETELEM => print!("getelem    "),
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_GETELEM`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_SETELEM`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:272:17
[INFO] [stdout]     |
[INFO] [stdout] 272 |                 OP_SETELEM => print!("setelem    "),
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_SETELEM`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_PUSHLIT`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:273:17
[INFO] [stdout]     |
[INFO] [stdout] 273 |                 OP_PUSHLIT => print!("pushlit    {}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_PUSHLIT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_ADD`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:275:17
[INFO] [stdout]     |
[INFO] [stdout] 275 |                 OP_ADD => print!("add        "),
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_ADD`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_SUB`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:276:17
[INFO] [stdout]     |
[INFO] [stdout] 276 |                 OP_SUB => print!("sub        "),
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_SUB`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_MUL`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:277:17
[INFO] [stdout]     |
[INFO] [stdout] 277 |                 OP_MUL => print!("mul        "),
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_MUL`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_DIV`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:278:17
[INFO] [stdout]     |
[INFO] [stdout] 278 |                 OP_DIV => print!("div        "),
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_DIV`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_TEST`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:280:17
[INFO] [stdout]     |
[INFO] [stdout] 280 |                 OP_TEST => print!("test       "),
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_TEST`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_JMP`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:281:17
[INFO] [stdout]     |
[INFO] [stdout] 281 |                 OP_JMP => print!("jmp        {:08x}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_JMP`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_JT`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:282:17
[INFO] [stdout]     |
[INFO] [stdout] 282 |                 OP_JT => print!("jt         {:08x}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_JT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_JF`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:283:17
[INFO] [stdout]     |
[INFO] [stdout] 283 |                 OP_JF => print!("jf         {:08x}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_JF`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_CALL`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:285:17
[INFO] [stdout]     |
[INFO] [stdout] 285 |                 OP_CALL => print!("call       {}", instr::d_op_12(instr)),
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_CALL`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_RET`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:286:17
[INFO] [stdout]     |
[INFO] [stdout] 286 |                 OP_RET => print!("ret        "),
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_RET`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `OP_POPVAL`
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:288:17
[INFO] [stdout]     |
[INFO] [stdout] 288 |                 OP_POPVAL => print!("popval     {}", instr::d_op_12(instr)),
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_POPVAL`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/sabri/native.rs:150:17
[INFO] [stdout]     |
[INFO] [stdout] 150 |     if let Some(v) = args.get(0) {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_var` is never used
[INFO] [stdout]   --> src/sabri/mod.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl Sabri {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn get_var(&self, var: &str) -> Option<Value> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Lambda` is never constructed
[INFO] [stdout]   --> src/sabri/syntax/parser/ast.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Expression {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 20 |     Lambda(Lambda),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expression` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Assignment` is never constructed
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:184:5
[INFO] [stdout]     |
[INFO] [stdout] 178 | pub enum Statement {
[INFO] [stdout]     |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 184 |     Assignment(Box<Expression>, Box<Expression>),
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Statement` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `params` and `block` are never read
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:198:5
[INFO] [stdout]     |
[INFO] [stdout] 197 | pub struct Lambda {
[INFO] [stdout]     |            ------ fields in this struct
[INFO] [stdout] 198 |     params: Vec<Rc<String>>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 199 |     block:  Box<Vec<Statement>>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Lambda` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `compile` is never used
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:209:12
[INFO] [stdout]     |
[INFO] [stdout] 202 | impl Lambda {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 209 |     pub fn compile(&self, sym: &Rc<SymTab>, program: &mut Program) -> ParserResult<(u32, usize)> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `def` are never read
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:232:5
[INFO] [stdout]     |
[INFO] [stdout] 231 | pub struct Function {
[INFO] [stdout]     |            -------- fields in this struct
[INFO] [stdout] 232 |     name: Rc<String>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 233 |     def:  Rc<Lambda>,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Function` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `compile` is never used
[INFO] [stdout]    --> src/sabri/syntax/parser/ast.rs:243:12
[INFO] [stdout]     |
[INFO] [stdout] 236 | impl Function {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 243 |     pub fn compile(&self, sym: &Rc<SymTab>, program: &mut Program) -> ParserResult<(u32, usize)> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PUSHENV` is never used
[INFO] [stdout]  --> src/sabri/bytecode/op.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub const PUSHENV: u8 = 1;
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GETELEM` is never used
[INFO] [stdout]  --> src/sabri/bytecode/op.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub const GETELEM: u8 = 5;
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SETELEM` is never used
[INFO] [stdout]  --> src/sabri/bytecode/op.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const SETELEM: u8 = 6;
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f_op_12_12` is never used
[INFO] [stdout]   --> src/sabri/bytecode/instr.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn f_op_12_12(instr : u32, t1 : u16, t2 : u16) -> u32 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `f_op_26` is never used
[INFO] [stdout]   --> src/sabri/bytecode/instr.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn f_op_26(instr : u32, t : u32) -> u32 {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add`, and `close` are never used
[INFO] [stdout]   --> src/sabri/bytecode/gen.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl FixupContext {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] 20 |     pub fn new(init_level: u32) -> FixupContext {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn add(&mut self, instr_addr: Addr) -> ParserResult<()> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn close(self, instr: &mut [u32], fixed_addr: Addr) -> ParserResult<()> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `while_context` and `func_context` are never read
[INFO] [stdout]   --> src/sabri/bytecode/gen.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct Program {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 44 |     while_context: Vec<FixupContext>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 45 |     func_context: Vec<FixupContext>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:70:12
[INFO] [stdout]     |
[INFO] [stdout] 53  | impl Program {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 70  |     pub fn add_label(&mut self, addr: Addr, comment: &str) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78  |     pub fn decrement_env_level(&mut self, n: u32) -> ParserResult<()> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 87  |     pub fn get_env_level(&mut self) -> u32 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 91  |     pub fn set_env_level(&mut self, n: u32) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     pub fn new_func_context(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 111 |     pub fn close_func_context(&mut self, fixed_addr: Addr) -> ParserResult<()> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 |     pub fn add_return_fixup(&mut self, addr: Addr) -> ParserResult<()> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |     pub fn new_while_context(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 130 |     pub fn close_while_context(&mut self, fixed_addr: Addr) -> ParserResult<()> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     pub fn add_break_fixup(&mut self, addr: Addr) -> ParserResult<()> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 144 |     pub fn get_while_env_level(&self) -> ParserResult<u32> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 152 |     pub fn fix_newenv(&mut self, instr_addr: Addr, n_vals: u16, n_total: u16) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 157 |     pub fn fix_jump(&mut self, instr_addr: Addr, target_addr: Addr) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 162 |     pub fn emit_halt(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     pub fn emit_popenv(&mut self, envs: u16) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 182 |     pub fn emit_getelem(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 210 |     pub fn emit_test(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 214 |     pub fn emit_jmp(&mut self, addr: Addr) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 222 |     pub fn emit_jf(&mut self, addr: Addr) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 230 |     pub fn emit_ret(&mut self) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 234 |     pub fn emit_popval(&mut self, values: u16) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `reset` is never used
[INFO] [stdout]   --> src/sabri/bytecode/run.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl Run {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn reset(&mut self, env: Rc<Env>) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/sabri/bytecode/closure.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Closure {
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 16 |     pub fn new(addr: Addr, num_params: usize, env: Rc<Env>) -> Closure {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Closure` is never constructed
[INFO] [stdout]   --> src/sabri/value.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub enum Value {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 15 |     Closure(bytecode::Closure),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_string` is never used
[INFO] [stdout]   --> src/sabri/value.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Value {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn as_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_pos` is never used
[INFO] [stdout]   --> src/sabri/error.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl RunError {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn new_pos(position: TokenPosition, value: &str) -> RunError {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/sabri/env.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Env {
[INFO] [stdout]    | -------- associated function in this implementation
[INFO] [stdout] 14 |     pub fn new(parent: Rc<Env>, values: &[Value]) -> Env {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func_dump_env` is never used
[INFO] [stdout]    --> src/sabri/native.rs:144:8
[INFO] [stdout]     |
[INFO] [stdout] 144 | pub fn func_dump_env(_args: &[Value], env: &Rc<Env>) -> RunResult<Value> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func_error` is never used
[INFO] [stdout]    --> src/sabri/native.rs:149:8
[INFO] [stdout]     |
[INFO] [stdout] 149 | pub fn func_error(args: &[Value], _env: &Rc<Env>) -> RunResult<Value> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/sabri/syntax/parser/parser.rs:104:21
[INFO] [stdout]     |
[INFO] [stdout] 104 |                     self.traveler.expect_content(")");
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 104 |                     let _ = self.traveler.expect_content(")");
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_HALT` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:249:17
[INFO] [stdout]     |
[INFO] [stdout] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stdout]     |                 ^^^^^^^ help: convert the identifier to snake case: `op_halt`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_NEWENV` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:251:17
[INFO] [stdout]     |
[INFO] [stdout] 251 |                 OP_NEWENV => {
[INFO] [stdout]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `op_newenv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_POPENV` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:257:17
[INFO] [stdout]     |
[INFO] [stdout] 257 |                 OP_POPENV => print!("popenv     {}", instr::d_op_12(instr)),
[INFO] [stdout]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `op_popenv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_GETVAR` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:259:17
[INFO] [stdout]     |
[INFO] [stdout] 259 |                 OP_GETVAR => {
[INFO] [stdout]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `op_getvar`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_SETVAR` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:265:17
[INFO] [stdout]     |
[INFO] [stdout] 265 |                 OP_SETVAR => {
[INFO] [stdout]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `op_setvar`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_GETELEM` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:271:17
[INFO] [stdout]     |
[INFO] [stdout] 271 |                 OP_GETELEM => print!("getelem    "),
[INFO] [stdout]     |                 ^^^^^^^^^^ help: convert the identifier to snake case: `op_getelem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_SETELEM` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:272:17
[INFO] [stdout]     |
[INFO] [stdout] 272 |                 OP_SETELEM => print!("setelem    "),
[INFO] [stdout]     |                 ^^^^^^^^^^ help: convert the identifier to snake case: `op_setelem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_PUSHLIT` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:273:17
[INFO] [stdout]     |
[INFO] [stdout] 273 |                 OP_PUSHLIT => print!("pushlit    {}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^^^^^^ help: convert the identifier to snake case: `op_pushlit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_ADD` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:275:17
[INFO] [stdout]     |
[INFO] [stdout] 275 |                 OP_ADD => print!("add        "),
[INFO] [stdout]     |                 ^^^^^^ help: convert the identifier to snake case: `op_add`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_SUB` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:276:17
[INFO] [stdout]     |
[INFO] [stdout] 276 |                 OP_SUB => print!("sub        "),
[INFO] [stdout]     |                 ^^^^^^ help: convert the identifier to snake case: `op_sub`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_MUL` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:277:17
[INFO] [stdout]     |
[INFO] [stdout] 277 |                 OP_MUL => print!("mul        "),
[INFO] [stdout]     |                 ^^^^^^ help: convert the identifier to snake case: `op_mul`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_DIV` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:278:17
[INFO] [stdout]     |
[INFO] [stdout] 278 |                 OP_DIV => print!("div        "),
[INFO] [stdout]     |                 ^^^^^^ help: convert the identifier to snake case: `op_div`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_TEST` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:280:17
[INFO] [stdout]     |
[INFO] [stdout] 280 |                 OP_TEST => print!("test       "),
[INFO] [stdout]     |                 ^^^^^^^ help: convert the identifier to snake case: `op_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_JMP` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:281:17
[INFO] [stdout]     |
[INFO] [stdout] 281 |                 OP_JMP => print!("jmp        {:08x}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^^ help: convert the identifier to snake case: `op_jmp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_JT` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:282:17
[INFO] [stdout]     |
[INFO] [stdout] 282 |                 OP_JT => print!("jt         {:08x}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^ help: convert the identifier to snake case: `op_jt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_JF` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:283:17
[INFO] [stdout]     |
[INFO] [stdout] 283 |                 OP_JF => print!("jf         {:08x}", instr::d_op_26(instr)),
[INFO] [stdout]     |                 ^^^^^ help: convert the identifier to snake case: `op_jf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_CALL` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:285:17
[INFO] [stdout]     |
[INFO] [stdout] 285 |                 OP_CALL => print!("call       {}", instr::d_op_12(instr)),
[INFO] [stdout]     |                 ^^^^^^^ help: convert the identifier to snake case: `op_call`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_RET` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:286:17
[INFO] [stdout]     |
[INFO] [stdout] 286 |                 OP_RET => print!("ret        "),
[INFO] [stdout]     |                 ^^^^^^ help: convert the identifier to snake case: `op_ret`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `OP_POPVAL` should have a snake case name
[INFO] [stdout]    --> src/sabri/bytecode/gen.rs:288:17
[INFO] [stdout]     |
[INFO] [stdout] 288 |                 OP_POPVAL => print!("popval     {}", instr::d_op_12(instr)),
[INFO] [stdout]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `op_popval`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 166 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.79s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "5271f6355e0aefced47dbedc435d0d6f9c30b28e1b0aacaaea44a374be42d776", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5271f6355e0aefced47dbedc435d0d6f9c30b28e1b0aacaaea44a374be42d776", kill_on_drop: false }`
[INFO] [stdout] 5271f6355e0aefced47dbedc435d0d6f9c30b28e1b0aacaaea44a374be42d776
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 070efc621ad146ecbe04bd988a3c8c3b7368f524bbc70163db51f997b35dab51
[INFO] running `Command { std: "docker" "start" "-a" "070efc621ad146ecbe04bd988a3c8c3b7368f524bbc70163db51f997b35dab51", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `ChunkValue`, `Chunk`
[INFO] [stderr]   --> src/sabri/syntax/lexer/mod.rs:11:39
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub use self::block_tree::{BlockTree, Chunk, ChunkValue};
[INFO] [stderr]    |                                       ^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `flatten_branch`, `lex_branch`, `lexer`
[INFO] [stderr]   --> src/sabri/syntax/lexer/mod.rs:13:23
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub use self::lexer::{lexer, lex_branch, flatten_branch, process_branch};
[INFO] [stderr]    |                       ^^^^^  ^^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sabri::bytecode`
[INFO] [stderr]  --> src/sabri/syntax/parser/ast.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use sabri::bytecode;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/sabri/syntax/parser/ast.rs:72:17
[INFO] [stderr]    |
[INFO] [stderr] 72 |                 try!(func.compile(sym, program));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/sabri/syntax/parser/ast.rs:75:21
[INFO] [stderr]    |
[INFO] [stderr] 75 |                     try!(a.compile(sym, program))
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/sabri/syntax/parser/ast.rs:91:48
[INFO] [stderr]    |
[INFO] [stderr] 91 | ...                   Some(ref e) => try!(e.compile(&cur_sym, program)),
[INFO] [stderr]    |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/syntax/parser/ast.rs:109:30
[INFO] [stderr]     |
[INFO] [stderr] 109 |                         _ => try!(statement.compile(&cur_sym, program)),
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/syntax/parser/ast.rs:115:37
[INFO] [stderr]     |
[INFO] [stderr] 115 |                 &Operand::Assign => try!(Self::compile_assignment(&*left, &*right, sym, program)),
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/syntax/parser/ast.rs:121:25
[INFO] [stderr]     |
[INFO] [stderr] 121 |                         try!(left.compile(sym, program));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/syntax/parser/ast.rs:122:25
[INFO] [stderr]     |
[INFO] [stderr] 122 |                         try!(right.compile(sym, program));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/syntax/parser/ast.rs:142:25
[INFO] [stderr]     |
[INFO] [stderr] 142 |                         try!(left.compile(sym, program));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/syntax/parser/ast.rs:143:25
[INFO] [stderr]     |
[INFO] [stderr] 143 |                         try!(right.compile(sym, program));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/syntax/parser/ast.rs:161:21
[INFO] [stderr]     |
[INFO] [stderr] 161 |                     try!(value.compile(sym, program));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/syntax/parser/ast.rs:216:9
[INFO] [stderr]     |
[INFO] [stderr] 216 |         try!(Expression::Block(self.block.clone()).compile(&new_sym, program));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/syntax/parser/ast.rs:224:9
[INFO] [stderr]     |
[INFO] [stderr] 224 |         try!(program.close_func_context(end));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ParserErrorValue`
[INFO] [stderr]  --> src/sabri/syntax/parser/parser.rs:4:27
[INFO] [stderr]   |
[INFO] [stderr] 4 | use parser::{ParserError, ParserErrorValue};
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/sabri/syntax/parser/parser.rs:23:24
[INFO] [stderr]    |
[INFO] [stderr] 23 |             stack.push(try!(self.statement()));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/sabri/syntax/parser/parser.rs:39:62
[INFO] [stderr]    |
[INFO] [stderr] 39 |                     return Ok(Statement::Expression(Box::new(try!(self.expression()))))
[INFO] [stderr]    |                                                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/sabri/syntax/parser/parser.rs:47:33
[INFO] [stderr]    |
[INFO] [stderr] 47 |                     let value = try!(self.expression());
[INFO] [stderr]    |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/sabri/syntax/parser/parser.rs:57:52
[INFO] [stderr]    |
[INFO] [stderr] 57 |             _ => Ok(Statement::Expression(Box::new(try!(self.expression())))),
[INFO] [stderr]    |                                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/sabri/syntax/parser/parser.rs:66:81
[INFO] [stderr]    |
[INFO] [stderr] 66 |                     TokenType::Block(_) => return Ok(Expression::Block(Box::new(try!(self.block())))),
[INFO] [stderr]    |                                                                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/syntax/parser/parser.rs:102:32
[INFO] [stderr]     |
[INFO] [stderr] 102 |                     let expr = try!(self.expression());
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/syntax/parser/parser.rs:142:59
[INFO] [stderr]     |
[INFO] [stderr] 142 |                 let lambda = Lambda::new(params, Box::new(try!(self.block())));
[INFO] [stderr]     |                                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/syntax/parser/parser.rs:161:24
[INFO] [stderr]     |
[INFO] [stderr] 161 |             stack.push(try!(self.expression()));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/syntax/parser/parser.rs:181:20
[INFO] [stderr]     |
[INFO] [stderr] 181 |                 Ok(try!(p.parse()))
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/syntax/parser/parser.rs:192:20
[INFO] [stderr]     |
[INFO] [stderr] 192 |         let expr = try!(self.term());
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/syntax/parser/parser.rs:215:23
[INFO] [stderr]     |
[INFO] [stderr] 215 |         ex_stack.push(try!(self.term()));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/syntax/parser/parser.rs:240:35
[INFO] [stderr]     |
[INFO] [stderr] 240 |                     ex_stack.push(try!(self.term()));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/syntax/parser/parser.rs:248:31
[INFO] [stderr]     |
[INFO] [stderr] 248 |                 ex_stack.push(try!(self.term()));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::lexer`
[INFO] [stderr]   --> src/sabri/syntax/parser/mod.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub use super::lexer;
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::bytecode::TokenPosition`
[INFO] [stderr]  --> src/sabri/bytecode/gen.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use self::bytecode::TokenPosition;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Addr`
[INFO] [stderr]   --> src/sabri/bytecode/run.rs:11:22
[INFO] [stderr]    |
[INFO] [stderr] 11 | use self::bytecode::{Addr, INVALID};
[INFO] [stderr]    |                      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/bytecode/run.rs:170:39
[INFO] [stderr]     |
[INFO] [stderr] 170 | ...                   let ret = try!(f.call(&self.val_stack[args_pos..], &self.env));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/bytecode/run.rs:204:41
[INFO] [stderr]     |
[INFO] [stderr] 204 |                     self.val_stack.push(try!(result));
[INFO] [stderr]     |                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `FixupContext`
[INFO] [stderr]  --> src/sabri/bytecode/mod.rs:8:21
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub use self::gen::{FixupContext, Program};
[INFO] [stderr]   |                     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::syntax`
[INFO] [stderr]   --> src/sabri/bytecode/mod.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub use super::syntax;
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `RefCell`, `Ref`
[INFO] [stderr]  --> src/sabri/value.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cell::{Ref, RefCell};
[INFO] [stderr]   |                 ^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sabri::Value`
[INFO] [stderr]  --> src/sabri/error.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use sabri::Value;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/sabri/env.rs:74:13
[INFO] [stderr]    |
[INFO] [stderr] 74 |             try!(p.dump(f, env_index - 1));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/sabri/env.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 |             try!(writeln!(f, "------------------------------"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/sabri/env.rs:79:13
[INFO] [stderr]    |
[INFO] [stderr] 79 |             try!(writeln!(f, "<{}@{}> {}", i, env_index, v))
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/sabri/env.rs:96:9
[INFO] [stderr]    |
[INFO] [stderr] 96 |         try!(self.dump(f, 0));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/sabri/native.rs:55:16
[INFO] [stderr]    |
[INFO] [stderr] 55 |     let left = try!(get_arg(args, 0));
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/sabri/native.rs:56:17
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let right = try!(get_arg(args, 1));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/sabri/native.rs:73:16
[INFO] [stderr]    |
[INFO] [stderr] 73 |     let left = try!(get_arg(args, 0));
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/sabri/native.rs:74:17
[INFO] [stderr]    |
[INFO] [stderr] 74 |     let right = try!(get_arg(args, 1));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:100:16
[INFO] [stderr]     |
[INFO] [stderr] 100 |     let left = try!(get_arg(args, 0));
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:101:17
[INFO] [stderr]     |
[INFO] [stderr] 101 |     let right = try!(get_arg(args, 1));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:133:15
[INFO] [stderr]     |
[INFO] [stderr] 133 |     let arg = try!(get_arg(args, 0));
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:167:40
[INFO] [stderr]     |
[INFO] [stderr] 167 |                         print!("{:x}", try!(try!(get_arg(args, next_arg)).as_int()));
[INFO] [stderr]     |                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:167:45
[INFO] [stderr]     |
[INFO] [stderr] 167 |                         print!("{:x}", try!(try!(get_arg(args, next_arg)).as_int()));
[INFO] [stderr]     |                                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:171:38
[INFO] [stderr]     |
[INFO] [stderr] 171 |                         print!("{}", try!(try!(get_arg(args, next_arg)).as_int()));
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:171:43
[INFO] [stderr]     |
[INFO] [stderr] 171 |                         print!("{}", try!(try!(get_arg(args, next_arg)).as_int()));
[INFO] [stderr]     |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:175:38
[INFO] [stderr]     |
[INFO] [stderr] 175 |                         print!("{}", try!(try!(get_arg(args, next_arg)).as_float()));
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:175:43
[INFO] [stderr]     |
[INFO] [stderr] 175 |                         print!("{}", try!(try!(get_arg(args, next_arg)).as_float()));
[INFO] [stderr]     |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:179:38
[INFO] [stderr]     |
[INFO] [stderr] 179 |                         print!("{}", try!(get_arg(args, next_arg)));
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:222:15
[INFO] [stderr]     |
[INFO] [stderr] 222 |     let val = try!(get_arg(args, 0));
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:227:20
[INFO] [stderr]     |
[INFO] [stderr] 227 |     Ok(Value::Bool(try!(cmp_eq(args))))
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:231:21
[INFO] [stderr]     |
[INFO] [stderr] 231 |     Ok(Value::Bool(!try!(cmp_eq(args))))
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:235:20
[INFO] [stderr]     |
[INFO] [stderr] 235 |     Ok(Value::Bool(try!(cmp_order(args, cmp_lt_num, cmp_lt_str))))
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:239:20
[INFO] [stderr]     |
[INFO] [stderr] 239 |     Ok(Value::Bool(try!(cmp_order(args, cmp_le_num, cmp_le_str))))
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:243:21
[INFO] [stderr]     |
[INFO] [stderr] 243 |     Ok(Value::Bool(!try!(cmp_order(args, cmp_le_num, cmp_le_str))))
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:247:21
[INFO] [stderr]     |
[INFO] [stderr] 247 |     Ok(Value::Bool(!try!(cmp_order(args, cmp_lt_num, cmp_lt_str))))
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:251:22
[INFO] [stderr]     |
[INFO] [stderr] 251 |     Ok(Value::Number(try!(bin_arithmetic(args, num_add, "+"))))
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:256:33
[INFO] [stderr]     |
[INFO] [stderr] 256 |         return Ok(Value::Number(try!(un_arithmetic(args, num_neg, "-"))));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:258:22
[INFO] [stderr]     |
[INFO] [stderr] 258 |     Ok(Value::Number(try!(bin_arithmetic(args, num_sub, "-"))))
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:262:22
[INFO] [stderr]     |
[INFO] [stderr] 262 |     Ok(Value::Number(try!(bin_arithmetic(args, num_mul, "*"))))
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:266:22
[INFO] [stderr]     |
[INFO] [stderr] 266 |     Ok(Value::Number(try!(bin_arithmetic(args, num_div, "/"))))
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:270:22
[INFO] [stderr]     |
[INFO] [stderr] 270 |     Ok(Value::Number(try!(bin_arithmetic(args, num_pow, "^"))))
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/sabri/native.rs:274:22
[INFO] [stderr]     |
[INFO] [stderr] 274 |     Ok(Value::Number(try!(bin_arithmetic(args, num_mod, "%"))))
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sabri::Env`
[INFO] [stderr]  --> src/sabri/symtab.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use sabri::Env;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `RunErrorValue`
[INFO] [stderr]   --> src/sabri/mod.rs:16:33
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub use self::error::{RunError, RunErrorValue};
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/sabri/syntax/lexer/lexer.rs:128:23
[INFO] [stderr]     |
[INFO] [stderr] 128 |     matchers: Vec<Box<Matcher>>,
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 128 |     matchers: Vec<Box<dyn Matcher>>,
[INFO] [stderr]     |                       +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sabri/syntax/lexer/tokenizer.rs:41:28
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn new(items: &mut Iterator<Item = char>) -> Tokenizer {
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn new(items: &mut dyn Iterator<Item = char>) -> Tokenizer {
[INFO] [stderr]    |                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/sabri/syntax/lexer/tokenizer.rs:112:49
[INFO] [stderr]     |
[INFO] [stderr] 112 |     pub fn try_match_token(&mut self, matcher: &Matcher) -> Option<Token> {
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 112 |     pub fn try_match_token(&mut self, matcher: &dyn Matcher) -> Option<Token> {
[INFO] [stderr]     |                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/sabri/syntax/lexer/lexer.rs:150:40
[INFO] [stderr]     |
[INFO] [stderr] 150 |     pub fn matchers(&self) -> &Vec<Box<Matcher>> {
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 150 |     pub fn matchers(&self) -> &Vec<Box<dyn Matcher>> {
[INFO] [stderr]     |                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/sabri/syntax/lexer/lexer.rs:154:52
[INFO] [stderr]     |
[INFO] [stderr] 154 |     pub fn matchers_mut(&mut self) -> &mut Vec<Box<Matcher>> {
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 154 |     pub fn matchers_mut(&mut self) -> &mut Vec<Box<dyn Matcher>> {
[INFO] [stderr]     |                                                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:49:66
[INFO] [stderr]    |
[INFO] [stderr] 49 |         Err(why) => panic!("failed to open {}: {}", display, why.description()),
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:55:67
[INFO] [stderr]    |
[INFO] [stderr] 55 |         Err(why) => panic!("failed to read {}: {}", display,  why.description()),
[INFO] [stderr]    |                                                                   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `l`
[INFO] [stderr]   --> src/sabri/syntax/parser/ast.rs:69:36
[INFO] [stderr]    |
[INFO] [stderr] 69 |             Expression::Lambda(ref l) => return Ok(()),
[INFO] [stderr]    |                                    ^ help: if this is intentional, prefix it with an underscore: `_l`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `fix_newenv_addr` is assigned to, but never used
[INFO] [stderr]   --> src/sabri/syntax/parser/ast.rs:85:25
[INFO] [stderr]    |
[INFO] [stderr] 85 |                 let mut fix_newenv_addr = 0;
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_fix_newenv_addr` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `fix_newenv_addr` is never read
[INFO] [stderr]    --> src/sabri/syntax/parser/ast.rs:103:33
[INFO] [stderr]     |
[INFO] [stderr] 103 | ...                   fix_newenv_addr = program.addr();
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/sabri/syntax/parser/ast.rs:84:21
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 let mut env_vars = 0;
[INFO] [stderr]    |                     ----^^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:251:17
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stderr]     |                 ------- matches any value
[INFO] [stderr] 250 |
[INFO] [stderr] 251 |                 OP_NEWENV => {
[INFO] [stderr]     |                 ^^^^^^^^^ unreachable pattern
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:257:17
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stderr]     |                 ------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 257 |                 OP_POPENV => print!("popenv     {}", instr::d_op_12(instr)),
[INFO] [stderr]     |                 ^^^^^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:259:17
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stderr]     |                 ------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 259 |                 OP_GETVAR => {
[INFO] [stderr]     |                 ^^^^^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:265:17
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stderr]     |                 ------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 265 |                 OP_SETVAR => {
[INFO] [stderr]     |                 ^^^^^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:271:17
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stderr]     |                 ------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 271 |                 OP_GETELEM => print!("getelem    "),
[INFO] [stderr]     |                 ^^^^^^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:272:17
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stderr]     |                 ------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 272 |                 OP_SETELEM => print!("setelem    "),
[INFO] [stderr]     |                 ^^^^^^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:273:17
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stderr]     |                 ------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 273 |                 OP_PUSHLIT => print!("pushlit    {}", instr::d_op_26(instr)),
[INFO] [stderr]     |                 ^^^^^^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:275:17
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stderr]     |                 ------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 275 |                 OP_ADD => print!("add        "),
[INFO] [stderr]     |                 ^^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:276:17
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stderr]     |                 ------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 276 |                 OP_SUB => print!("sub        "),
[INFO] [stderr]     |                 ^^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:277:17
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stderr]     |                 ------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 277 |                 OP_MUL => print!("mul        "),
[INFO] [stderr]     |                 ^^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:278:17
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stderr]     |                 ------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 278 |                 OP_DIV => print!("div        "),
[INFO] [stderr]     |                 ^^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:280:17
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stderr]     |                 ------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 280 |                 OP_TEST => print!("test       "),
[INFO] [stderr]     |                 ^^^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:281:17
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stderr]     |                 ------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 281 |                 OP_JMP => print!("jmp        {:08x}", instr::d_op_26(instr)),
[INFO] [stderr]     |                 ^^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:282:17
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stderr]     |                 ------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 282 |                 OP_JT => print!("jt         {:08x}", instr::d_op_26(instr)),
[INFO] [stderr]     |                 ^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:283:17
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stderr]     |                 ------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 283 |                 OP_JF => print!("jf         {:08x}", instr::d_op_26(instr)),
[INFO] [stderr]     |                 ^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:285:17
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stderr]     |                 ------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 285 |                 OP_CALL => print!("call       {}", instr::d_op_12(instr)),
[INFO] [stderr]     |                 ^^^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:286:17
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stderr]     |                 ------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 286 |                 OP_RET => print!("ret        "),
[INFO] [stderr]     |                 ^^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:288:17
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stderr]     |                 ------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 288 |                 OP_POPVAL => print!("popval     {}", instr::d_op_12(instr)),
[INFO] [stderr]     |                 ^^^^^^^^^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:290:17
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stderr]     |                 ------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 290 |                 _ => print!("???        "),
[INFO] [stderr]     |                 ^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `OP_HALT`
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:249:17
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stderr]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_HALT`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `OP_NEWENV`
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:251:17
[INFO] [stderr]     |
[INFO] [stderr] 251 |                 OP_NEWENV => {
[INFO] [stderr]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_NEWENV`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `OP_POPENV`
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:257:17
[INFO] [stderr]     |
[INFO] [stderr] 257 |                 OP_POPENV => print!("popenv     {}", instr::d_op_12(instr)),
[INFO] [stderr]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_POPENV`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `OP_GETVAR`
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:259:17
[INFO] [stderr]     |
[INFO] [stderr] 259 |                 OP_GETVAR => {
[INFO] [stderr]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_GETVAR`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `OP_SETVAR`
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:265:17
[INFO] [stderr]     |
[INFO] [stderr] 265 |                 OP_SETVAR => {
[INFO] [stderr]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_SETVAR`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `OP_GETELEM`
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:271:17
[INFO] [stderr]     |
[INFO] [stderr] 271 |                 OP_GETELEM => print!("getelem    "),
[INFO] [stderr]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_GETELEM`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `OP_SETELEM`
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:272:17
[INFO] [stderr]     |
[INFO] [stderr] 272 |                 OP_SETELEM => print!("setelem    "),
[INFO] [stderr]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_SETELEM`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `OP_PUSHLIT`
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:273:17
[INFO] [stderr]     |
[INFO] [stderr] 273 |                 OP_PUSHLIT => print!("pushlit    {}", instr::d_op_26(instr)),
[INFO] [stderr]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_PUSHLIT`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `OP_ADD`
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:275:17
[INFO] [stderr]     |
[INFO] [stderr] 275 |                 OP_ADD => print!("add        "),
[INFO] [stderr]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_ADD`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `OP_SUB`
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:276:17
[INFO] [stderr]     |
[INFO] [stderr] 276 |                 OP_SUB => print!("sub        "),
[INFO] [stderr]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_SUB`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `OP_MUL`
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:277:17
[INFO] [stderr]     |
[INFO] [stderr] 277 |                 OP_MUL => print!("mul        "),
[INFO] [stderr]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_MUL`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `OP_DIV`
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:278:17
[INFO] [stderr]     |
[INFO] [stderr] 278 |                 OP_DIV => print!("div        "),
[INFO] [stderr]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_DIV`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `OP_TEST`
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:280:17
[INFO] [stderr]     |
[INFO] [stderr] 280 |                 OP_TEST => print!("test       "),
[INFO] [stderr]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_TEST`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `OP_JMP`
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:281:17
[INFO] [stderr]     |
[INFO] [stderr] 281 |                 OP_JMP => print!("jmp        {:08x}", instr::d_op_26(instr)),
[INFO] [stderr]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_JMP`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `OP_JT`
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:282:17
[INFO] [stderr]     |
[INFO] [stderr] 282 |                 OP_JT => print!("jt         {:08x}", instr::d_op_26(instr)),
[INFO] [stderr]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_JT`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `OP_JF`
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:283:17
[INFO] [stderr]     |
[INFO] [stderr] 283 |                 OP_JF => print!("jf         {:08x}", instr::d_op_26(instr)),
[INFO] [stderr]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_JF`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `OP_CALL`
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:285:17
[INFO] [stderr]     |
[INFO] [stderr] 285 |                 OP_CALL => print!("call       {}", instr::d_op_12(instr)),
[INFO] [stderr]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_CALL`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `OP_RET`
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:286:17
[INFO] [stderr]     |
[INFO] [stderr] 286 |                 OP_RET => print!("ret        "),
[INFO] [stderr]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_RET`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `OP_POPVAL`
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:288:17
[INFO] [stderr]     |
[INFO] [stderr] 288 |                 OP_POPVAL => print!("popval     {}", instr::d_op_12(instr)),
[INFO] [stderr]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_OP_POPVAL`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]    --> src/sabri/native.rs:150:17
[INFO] [stderr]     |
[INFO] [stderr] 150 |     if let Some(v) = args.get(0) {
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: method `get_var` is never used
[INFO] [stderr]   --> src/sabri/mod.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 26 | impl Sabri {
[INFO] [stderr]    | ---------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 49 |     pub fn get_var(&self, var: &str) -> Option<Value> {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Lambda` is never constructed
[INFO] [stderr]   --> src/sabri/syntax/parser/ast.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub enum Expression {
[INFO] [stderr]    |          ---------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 20 |     Lambda(Lambda),
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Expression` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Assignment` is never constructed
[INFO] [stderr]    --> src/sabri/syntax/parser/ast.rs:184:5
[INFO] [stderr]     |
[INFO] [stderr] 178 | pub enum Statement {
[INFO] [stderr]     |          --------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 184 |     Assignment(Box<Expression>, Box<Expression>),
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Statement` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `params` and `block` are never read
[INFO] [stderr]    --> src/sabri/syntax/parser/ast.rs:198:5
[INFO] [stderr]     |
[INFO] [stderr] 197 | pub struct Lambda {
[INFO] [stderr]     |            ------ fields in this struct
[INFO] [stderr] 198 |     params: Vec<Rc<String>>,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr] 199 |     block:  Box<Vec<Statement>>,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Lambda` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: method `compile` is never used
[INFO] [stderr]    --> src/sabri/syntax/parser/ast.rs:209:12
[INFO] [stderr]     |
[INFO] [stderr] 202 | impl Lambda {
[INFO] [stderr]     | ----------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 209 |     pub fn compile(&self, sym: &Rc<SymTab>, program: &mut Program) -> ParserResult<(u32, usize)> {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `name` and `def` are never read
[INFO] [stderr]    --> src/sabri/syntax/parser/ast.rs:232:5
[INFO] [stderr]     |
[INFO] [stderr] 231 | pub struct Function {
[INFO] [stderr]     |            -------- fields in this struct
[INFO] [stderr] 232 |     name: Rc<String>,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 233 |     def:  Rc<Lambda>,
[INFO] [stderr]     |     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Function` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: method `compile` is never used
[INFO] [stderr]    --> src/sabri/syntax/parser/ast.rs:243:12
[INFO] [stderr]     |
[INFO] [stderr] 236 | impl Function {
[INFO] [stderr]     | ------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 243 |     pub fn compile(&self, sym: &Rc<SymTab>, program: &mut Program) -> ParserResult<(u32, usize)> {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `PUSHENV` is never used
[INFO] [stderr]  --> src/sabri/bytecode/op.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub const PUSHENV: u8 = 1;
[INFO] [stderr]   |           ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `GETELEM` is never used
[INFO] [stderr]  --> src/sabri/bytecode/op.rs:7:11
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub const GETELEM: u8 = 5;
[INFO] [stderr]   |           ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `SETELEM` is never used
[INFO] [stderr]  --> src/sabri/bytecode/op.rs:8:11
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub const SETELEM: u8 = 6;
[INFO] [stderr]   |           ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `f_op_12_12` is never used
[INFO] [stderr]   --> src/sabri/bytecode/instr.rs:43:8
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub fn f_op_12_12(instr : u32, t1 : u16, t2 : u16) -> u32 {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `f_op_26` is never used
[INFO] [stderr]   --> src/sabri/bytecode/instr.rs:47:8
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub fn f_op_26(instr : u32, t : u32) -> u32 {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `add`, and `close` are never used
[INFO] [stderr]   --> src/sabri/bytecode/gen.rs:20:12
[INFO] [stderr]    |
[INFO] [stderr] 19 | impl FixupContext {
[INFO] [stderr]    | ----------------- associated items in this implementation
[INFO] [stderr] 20 |     pub fn new(init_level: u32) -> FixupContext {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 27 |     pub fn add(&mut self, instr_addr: Addr) -> ParserResult<()> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 32 |     pub fn close(self, instr: &mut [u32], fixed_addr: Addr) -> ParserResult<()> {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `while_context` and `func_context` are never read
[INFO] [stderr]   --> src/sabri/bytecode/gen.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub struct Program {
[INFO] [stderr]    |            ------- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 44 |     while_context: Vec<FixupContext>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 45 |     func_context: Vec<FixupContext>,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple methods are never used
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:70:12
[INFO] [stderr]     |
[INFO] [stderr] 53  | impl Program {
[INFO] [stderr]     | ------------ methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 70  |     pub fn add_label(&mut self, addr: Addr, comment: &str) {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 78  |     pub fn decrement_env_level(&mut self, n: u32) -> ParserResult<()> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 87  |     pub fn get_env_level(&mut self) -> u32 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 91  |     pub fn set_env_level(&mut self, n: u32) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 106 |     pub fn new_func_context(&mut self) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 111 |     pub fn close_func_context(&mut self, fixed_addr: Addr) -> ParserResult<()> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 118 |     pub fn add_return_fixup(&mut self, addr: Addr) -> ParserResult<()> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 125 |     pub fn new_while_context(&mut self) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 130 |     pub fn close_while_context(&mut self, fixed_addr: Addr) -> ParserResult<()> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 137 |     pub fn add_break_fixup(&mut self, addr: Addr) -> ParserResult<()> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 144 |     pub fn get_while_env_level(&self) -> ParserResult<u32> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 152 |     pub fn fix_newenv(&mut self, instr_addr: Addr, n_vals: u16, n_total: u16) {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 157 |     pub fn fix_jump(&mut self, instr_addr: Addr, target_addr: Addr) {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 162 |     pub fn emit_halt(&mut self) {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 170 |     pub fn emit_popenv(&mut self, envs: u16) {
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 182 |     pub fn emit_getelem(&mut self) {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 210 |     pub fn emit_test(&mut self) {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 214 |     pub fn emit_jmp(&mut self, addr: Addr) {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 222 |     pub fn emit_jf(&mut self, addr: Addr) {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 230 |     pub fn emit_ret(&mut self) {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 234 |     pub fn emit_popval(&mut self, values: u16) {
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `reset` is never used
[INFO] [stderr]   --> src/sabri/bytecode/run.rs:34:12
[INFO] [stderr]    |
[INFO] [stderr] 22 | impl Run {
[INFO] [stderr]    | -------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 34 |     pub fn reset(&mut self, env: Rc<Env>) {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/sabri/bytecode/closure.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 15 | impl Closure {
[INFO] [stderr]    | ------------ associated function in this implementation
[INFO] [stderr] 16 |     pub fn new(addr: Addr, num_params: usize, env: Rc<Env>) -> Closure {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Closure` is never constructed
[INFO] [stderr]   --> src/sabri/value.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 9  | pub enum Value {
[INFO] [stderr]    |          ----- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 15 |     Closure(bytecode::Closure),
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: method `as_string` is never used
[INFO] [stderr]   --> src/sabri/value.rs:60:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | impl Value {
[INFO] [stderr]    | ---------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 60 |     pub fn as_string(&self) -> String {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new_pos` is never used
[INFO] [stderr]   --> src/sabri/error.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 16 | impl RunError {
[INFO] [stderr]    | ------------- associated function in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 24 |     pub fn new_pos(position: TokenPosition, value: &str) -> RunError {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/sabri/env.rs:14:12
[INFO] [stderr]    |
[INFO] [stderr] 13 | impl Env {
[INFO] [stderr]    | -------- associated function in this implementation
[INFO] [stderr] 14 |     pub fn new(parent: Rc<Env>, values: &[Value]) -> Env {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `func_dump_env` is never used
[INFO] [stderr]    --> src/sabri/native.rs:144:8
[INFO] [stderr]     |
[INFO] [stderr] 144 | pub fn func_dump_env(_args: &[Value], env: &Rc<Env>) -> RunResult<Value> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `func_error` is never used
[INFO] [stderr]    --> src/sabri/native.rs:149:8
[INFO] [stderr]     |
[INFO] [stderr] 149 | pub fn func_error(args: &[Value], _env: &Rc<Env>) -> RunResult<Value> {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/sabri/syntax/parser/parser.rs:104:21
[INFO] [stderr]     |
[INFO] [stderr] 104 |                     self.traveler.expect_content(")");
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 104 |                     let _ = self.traveler.expect_content(")");
[INFO] [stderr]     |                     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: variable `OP_HALT` should have a snake case name
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:249:17
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 OP_HALT => print!("halt       "),
[INFO] [stderr]     |                 ^^^^^^^ help: convert the identifier to snake case: `op_halt`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `OP_NEWENV` should have a snake case name
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:251:17
[INFO] [stderr]     |
[INFO] [stderr] 251 |                 OP_NEWENV => {
[INFO] [stderr]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `op_newenv`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `OP_POPENV` should have a snake case name
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:257:17
[INFO] [stderr]     |
[INFO] [stderr] 257 |                 OP_POPENV => print!("popenv     {}", instr::d_op_12(instr)),
[INFO] [stderr]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `op_popenv`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `OP_GETVAR` should have a snake case name
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:259:17
[INFO] [stderr]     |
[INFO] [stderr] 259 |                 OP_GETVAR => {
[INFO] [stderr]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `op_getvar`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `OP_SETVAR` should have a snake case name
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:265:17
[INFO] [stderr]     |
[INFO] [stderr] 265 |                 OP_SETVAR => {
[INFO] [stderr]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `op_setvar`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `OP_GETELEM` should have a snake case name
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:271:17
[INFO] [stderr]     |
[INFO] [stderr] 271 |                 OP_GETELEM => print!("getelem    "),
[INFO] [stderr]     |                 ^^^^^^^^^^ help: convert the identifier to snake case: `op_getelem`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `OP_SETELEM` should have a snake case name
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:272:17
[INFO] [stderr]     |
[INFO] [stderr] 272 |                 OP_SETELEM => print!("setelem    "),
[INFO] [stderr]     |                 ^^^^^^^^^^ help: convert the identifier to snake case: `op_setelem`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `OP_PUSHLIT` should have a snake case name
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:273:17
[INFO] [stderr]     |
[INFO] [stderr] 273 |                 OP_PUSHLIT => print!("pushlit    {}", instr::d_op_26(instr)),
[INFO] [stderr]     |                 ^^^^^^^^^^ help: convert the identifier to snake case: `op_pushlit`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `OP_ADD` should have a snake case name
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:275:17
[INFO] [stderr]     |
[INFO] [stderr] 275 |                 OP_ADD => print!("add        "),
[INFO] [stderr]     |                 ^^^^^^ help: convert the identifier to snake case: `op_add`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `OP_SUB` should have a snake case name
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:276:17
[INFO] [stderr]     |
[INFO] [stderr] 276 |                 OP_SUB => print!("sub        "),
[INFO] [stderr]     |                 ^^^^^^ help: convert the identifier to snake case: `op_sub`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `OP_MUL` should have a snake case name
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:277:17
[INFO] [stderr]     |
[INFO] [stderr] 277 |                 OP_MUL => print!("mul        "),
[INFO] [stderr]     |                 ^^^^^^ help: convert the identifier to snake case: `op_mul`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `OP_DIV` should have a snake case name
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:278:17
[INFO] [stderr]     |
[INFO] [stderr] 278 |                 OP_DIV => print!("div        "),
[INFO] [stderr]     |                 ^^^^^^ help: convert the identifier to snake case: `op_div`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `OP_TEST` should have a snake case name
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:280:17
[INFO] [stderr]     |
[INFO] [stderr] 280 |                 OP_TEST => print!("test       "),
[INFO] [stderr]     |                 ^^^^^^^ help: convert the identifier to snake case: `op_test`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `OP_JMP` should have a snake case name
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:281:17
[INFO] [stderr]     |
[INFO] [stderr] 281 |                 OP_JMP => print!("jmp        {:08x}", instr::d_op_26(instr)),
[INFO] [stderr]     |                 ^^^^^^ help: convert the identifier to snake case: `op_jmp`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `OP_JT` should have a snake case name
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:282:17
[INFO] [stderr]     |
[INFO] [stderr] 282 |                 OP_JT => print!("jt         {:08x}", instr::d_op_26(instr)),
[INFO] [stderr]     |                 ^^^^^ help: convert the identifier to snake case: `op_jt`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `OP_JF` should have a snake case name
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:283:17
[INFO] [stderr]     |
[INFO] [stderr] 283 |                 OP_JF => print!("jf         {:08x}", instr::d_op_26(instr)),
[INFO] [stderr]     |                 ^^^^^ help: convert the identifier to snake case: `op_jf`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `OP_CALL` should have a snake case name
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:285:17
[INFO] [stderr]     |
[INFO] [stderr] 285 |                 OP_CALL => print!("call       {}", instr::d_op_12(instr)),
[INFO] [stderr]     |                 ^^^^^^^ help: convert the identifier to snake case: `op_call`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `OP_RET` should have a snake case name
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:286:17
[INFO] [stderr]     |
[INFO] [stderr] 286 |                 OP_RET => print!("ret        "),
[INFO] [stderr]     |                 ^^^^^^ help: convert the identifier to snake case: `op_ret`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `OP_POPVAL` should have a snake case name
[INFO] [stderr]    --> src/sabri/bytecode/gen.rs:288:17
[INFO] [stderr]     |
[INFO] [stderr] 288 |                 OP_POPVAL => print!("popval     {}", instr::d_op_12(instr)),
[INFO] [stderr]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `op_popval`
[INFO] [stderr] 
[INFO] [stderr] warning: `sabri` (bin "sabri" test) generated 166 warnings (run `cargo fix --bin "sabri" --tests` to apply 41 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/sabri-74be2de817bf14c4)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "070efc621ad146ecbe04bd988a3c8c3b7368f524bbc70163db51f997b35dab51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "070efc621ad146ecbe04bd988a3c8c3b7368f524bbc70163db51f997b35dab51", kill_on_drop: false }`
[INFO] [stdout] 070efc621ad146ecbe04bd988a3c8c3b7368f524bbc70163db51f997b35dab51
