[INFO] updating cached repository https://github.com/marior765/v9
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9e960268ace9efafd54d150137ca2995b342b3b5
[INFO] testing marior765/v9 against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarior765%2Fv9" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/marior765/v9 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/marior765/v9
[INFO] finished tweaking git repo https://github.com/marior765/v9
[INFO] tweaked toml for git repo https://github.com/marior765/v9 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/marior765/v9 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] de5a1d649fd57ef8c902dcbea914a413a2b5dfd1897400809fd413544fe4bb84
[INFO] running `"docker" "start" "-a" "de5a1d649fd57ef8c902dcbea914a413a2b5dfd1897400809fd413544fe4bb84"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling v9 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `expr::Expr`
[INFO] [stderr]  --> src/analyzer.rs:1:20
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::types::{expr::Expr, keyword::Keyword, punctuator::Punctuator};
[INFO] [stderr]   |                    ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::analyzer::Element`
[INFO] [stderr]  --> src/file_system/module.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::analyzer::Element;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `string::ToString`
[INFO] [stderr]  --> src/types/keyword.rs:5:3
[INFO] [stderr]   |
[INFO] [stderr] 5 |   string::ToString,
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `EOF`
[INFO] [stderr]   --> src/analyzer.rs:42:3
[INFO] [stderr]    |
[INFO] [stderr] 42 |   EOF,
[INFO] [stderr]    |   ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RegularExpressionLiteral`
[INFO] [stderr]   --> src/analyzer.rs:47:3
[INFO] [stderr]    |
[INFO] [stderr] 47 |   RegularExpressionLiteral(String, String),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Comment`
[INFO] [stderr]   --> src/analyzer.rs:48:3
[INFO] [stderr]    |
[INFO] [stderr] 48 |   Comment(String),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_file`
[INFO] [stderr]   --> src/file_system/reader.rs:20:3
[INFO] [stderr]    |
[INFO] [stderr] 20 |   pub fn read_file(&mut self, file_path: &str) -> std::io::Result<String> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `String`
[INFO] [stderr]  --> src/types/const.rs:3:3
[INFO] [stderr]   |
[INFO] [stderr] 3 |   String(String),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Float`
[INFO] [stderr]  --> src/types/const.rs:4:3
[INFO] [stderr]   |
[INFO] [stderr] 4 |   Float(f64),
[INFO] [stderr]   |   ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Int`
[INFO] [stderr]  --> src/types/const.rs:5:3
[INFO] [stderr]   |
[INFO] [stderr] 5 |   Int(i64),
[INFO] [stderr]   |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Bool`
[INFO] [stderr]  --> src/types/const.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   Bool(bool),
[INFO] [stderr]   |   ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Undefined`
[INFO] [stderr]  --> src/types/const.rs:7:3
[INFO] [stderr]   |
[INFO] [stderr] 7 |   Undefined,
[INFO] [stderr]   |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Null`
[INFO] [stderr]  --> src/types/const.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   Null,
[INFO] [stderr]   |   ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FunctionDeclaration`
[INFO] [stderr]  --> src/types/expr.rs:5:3
[INFO] [stderr]   |
[INFO] [stderr] 5 |   FunctionDeclaration(String, Vec<Expr>),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GeneratorDeclaration`
[INFO] [stderr]  --> src/types/expr.rs:7:3
[INFO] [stderr]   |
[INFO] [stderr] 7 |   GeneratorDeclaration(String, Vec<Expr>, Vec<Expr>),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AsyncFunctionDeclaration`
[INFO] [stderr]  --> src/types/expr.rs:9:3
[INFO] [stderr]   |
[INFO] [stderr] 9 |   AsyncFunctionDeclaration(String, Vec<Expr>),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AsyncGeneratorDeclaration`
[INFO] [stderr]   --> src/types/expr.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   AsyncGeneratorDeclaration(String, Vec<Expr>, Vec<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ArrowFunction`
[INFO] [stderr]   --> src/types/expr.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   ArrowFunction(Option<String>, Vec<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AsyncArrowFunction`
[INFO] [stderr]   --> src/types/expr.rs:15:3
[INFO] [stderr]    |
[INFO] [stderr] 15 |   AsyncArrowFunction(Option<String>, Vec<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ClassDeclaration`
[INFO] [stderr]   --> src/types/expr.rs:16:3
[INFO] [stderr]    |
[INFO] [stderr] 16 |   ClassDeclaration(String),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Const`
[INFO] [stderr]   --> src/types/expr.rs:20:3
[INFO] [stderr]    |
[INFO] [stderr] 20 |   Const(Const),
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ConstDeclaration`
[INFO] [stderr]   --> src/types/expr.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 |   ConstDeclaration(Vec<(String, Expr)>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Construct`
[INFO] [stderr]   --> src/types/expr.rs:22:3
[INFO] [stderr]    |
[INFO] [stderr] 22 |   Construct(Box<Expr>, Vec<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Block`
[INFO] [stderr]   --> src/types/expr.rs:23:3
[INFO] [stderr]    |
[INFO] [stderr] 23 |   Block(Vec<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Local`
[INFO] [stderr]   --> src/types/expr.rs:24:3
[INFO] [stderr]    |
[INFO] [stderr] 24 |   Local(String),
[INFO] [stderr]    |   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GetConstField`
[INFO] [stderr]   --> src/types/expr.rs:25:3
[INFO] [stderr]    |
[INFO] [stderr] 25 |   GetConstField(Box<Expr>, String),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GetField`
[INFO] [stderr]   --> src/types/expr.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |   GetField(Box<Expr>, Box<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Call`
[INFO] [stderr]   --> src/types/expr.rs:27:3
[INFO] [stderr]    |
[INFO] [stderr] 27 |   Call(Box<Expr>, Vec<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `WhileLoop`
[INFO] [stderr]   --> src/types/expr.rs:28:3
[INFO] [stderr]    |
[INFO] [stderr] 28 |   WhileLoop(Box<Expr>, Box<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `If`
[INFO] [stderr]   --> src/types/expr.rs:29:3
[INFO] [stderr]    |
[INFO] [stderr] 29 |   If(Box<Expr>, Box<Expr>, Option<Box<Expr>>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Switch`
[INFO] [stderr]   --> src/types/expr.rs:30:3
[INFO] [stderr]    |
[INFO] [stderr] 30 |   Switch(Box<Expr>, Vec<(Expr, Vec<Expr>)>, Option<Box<Expr>>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ArrayDeclaration`
[INFO] [stderr]   --> src/types/expr.rs:32:3
[INFO] [stderr]    |
[INFO] [stderr] 32 |   ArrayDeclaration(Vec<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Return`
[INFO] [stderr]   --> src/types/expr.rs:33:3
[INFO] [stderr]    |
[INFO] [stderr] 33 |   Return(Option<Box<Expr>>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Throw`
[INFO] [stderr]   --> src/types/expr.rs:34:3
[INFO] [stderr]    |
[INFO] [stderr] 34 |   Throw(Box<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Assign`
[INFO] [stderr]   --> src/types/expr.rs:35:3
[INFO] [stderr]    |
[INFO] [stderr] 35 |   Assign(Box<Expr>, Box<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `VarDeclaration`
[INFO] [stderr]   --> src/types/expr.rs:36:3
[INFO] [stderr]    |
[INFO] [stderr] 36 |   VarDeclaration(Vec<(String, Option<Expr>)>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LetDeclaration`
[INFO] [stderr]   --> src/types/expr.rs:37:3
[INFO] [stderr]    |
[INFO] [stderr] 37 |   LetDeclaration(Vec<(String, Option<Expr>)>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `TypeOf`
[INFO] [stderr]   --> src/types/expr.rs:38:3
[INFO] [stderr]    |
[INFO] [stderr] 38 |   TypeOf(Box<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `And`
[INFO] [stderr]  --> src/types/punctuator.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   And,
[INFO] [stderr]   |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Arrow`
[INFO] [stderr]   --> src/types/punctuator.rs:10:3
[INFO] [stderr]    |
[INFO] [stderr] 10 |   Arrow,
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignAdd`
[INFO] [stderr]   --> src/types/punctuator.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   AssignAdd,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignAnd`
[INFO] [stderr]   --> src/types/punctuator.rs:16:3
[INFO] [stderr]    |
[INFO] [stderr] 16 |   AssignAnd,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignDiv`
[INFO] [stderr]   --> src/types/punctuator.rs:18:3
[INFO] [stderr]    |
[INFO] [stderr] 18 |   AssignDiv,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignLeftSh`
[INFO] [stderr]   --> src/types/punctuator.rs:20:3
[INFO] [stderr]    |
[INFO] [stderr] 20 |   AssignLeftSh,
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignMod`
[INFO] [stderr]   --> src/types/punctuator.rs:22:3
[INFO] [stderr]    |
[INFO] [stderr] 22 |   AssignMod,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignMul`
[INFO] [stderr]   --> src/types/punctuator.rs:24:3
[INFO] [stderr]    |
[INFO] [stderr] 24 |   AssignMul,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignOr`
[INFO] [stderr]   --> src/types/punctuator.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |   AssignOr,
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignPow`
[INFO] [stderr]   --> src/types/punctuator.rs:28:3
[INFO] [stderr]    |
[INFO] [stderr] 28 |   AssignPow,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignRightSh`
[INFO] [stderr]   --> src/types/punctuator.rs:30:3
[INFO] [stderr]    |
[INFO] [stderr] 30 |   AssignRightSh,
[INFO] [stderr]    |   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignSub`
[INFO] [stderr]   --> src/types/punctuator.rs:32:3
[INFO] [stderr]    |
[INFO] [stderr] 32 |   AssignSub,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignURightSh`
[INFO] [stderr]   --> src/types/punctuator.rs:34:3
[INFO] [stderr]    |
[INFO] [stderr] 34 |   AssignURightSh,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignXor`
[INFO] [stderr]   --> src/types/punctuator.rs:36:3
[INFO] [stderr]    |
[INFO] [stderr] 36 |   AssignXor,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BoolAnd`
[INFO] [stderr]   --> src/types/punctuator.rs:38:3
[INFO] [stderr]    |
[INFO] [stderr] 38 |   BoolAnd,
[INFO] [stderr]    |   ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BoolOr`
[INFO] [stderr]   --> src/types/punctuator.rs:40:3
[INFO] [stderr]    |
[INFO] [stderr] 40 |   BoolOr,
[INFO] [stderr]    |   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Colon`
[INFO] [stderr]   --> src/types/punctuator.rs:48:3
[INFO] [stderr]    |
[INFO] [stderr] 48 |   Colon,
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Dec`
[INFO] [stderr]   --> src/types/punctuator.rs:52:3
[INFO] [stderr]    |
[INFO] [stderr] 52 |   Dec,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Div`
[INFO] [stderr]   --> src/types/punctuator.rs:54:3
[INFO] [stderr]    |
[INFO] [stderr] 54 |   Div,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Eq`
[INFO] [stderr]   --> src/types/punctuator.rs:58:3
[INFO] [stderr]    |
[INFO] [stderr] 58 |   Eq,
[INFO] [stderr]    |   ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GreaterThan`
[INFO] [stderr]   --> src/types/punctuator.rs:60:3
[INFO] [stderr]    |
[INFO] [stderr] 60 |   GreaterThan,
[INFO] [stderr]    |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GreaterThanOrEq`
[INFO] [stderr]   --> src/types/punctuator.rs:62:3
[INFO] [stderr]    |
[INFO] [stderr] 62 |   GreaterThanOrEq,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Inc`
[INFO] [stderr]   --> src/types/punctuator.rs:64:3
[INFO] [stderr]    |
[INFO] [stderr] 64 |   Inc,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LeftSh`
[INFO] [stderr]   --> src/types/punctuator.rs:66:3
[INFO] [stderr]    |
[INFO] [stderr] 66 |   LeftSh,
[INFO] [stderr]    |   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LessThan`
[INFO] [stderr]   --> src/types/punctuator.rs:68:3
[INFO] [stderr]    |
[INFO] [stderr] 68 |   LessThan,
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LessThanOrEq`
[INFO] [stderr]   --> src/types/punctuator.rs:70:3
[INFO] [stderr]    |
[INFO] [stderr] 70 |   LessThanOrEq,
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Mod`
[INFO] [stderr]   --> src/types/punctuator.rs:72:3
[INFO] [stderr]    |
[INFO] [stderr] 72 |   Mod,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Mul`
[INFO] [stderr]   --> src/types/punctuator.rs:74:3
[INFO] [stderr]    |
[INFO] [stderr] 74 |   Mul,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Neg`
[INFO] [stderr]   --> src/types/punctuator.rs:76:3
[INFO] [stderr]    |
[INFO] [stderr] 76 |   Neg,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Not`
[INFO] [stderr]   --> src/types/punctuator.rs:78:3
[INFO] [stderr]    |
[INFO] [stderr] 78 |   Not,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NotEq`
[INFO] [stderr]   --> src/types/punctuator.rs:80:3
[INFO] [stderr]    |
[INFO] [stderr] 80 |   NotEq,
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Or`
[INFO] [stderr]   --> src/types/punctuator.rs:88:3
[INFO] [stderr]    |
[INFO] [stderr] 88 |   Or,
[INFO] [stderr]    |   ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Pow`
[INFO] [stderr]   --> src/types/punctuator.rs:90:3
[INFO] [stderr]    |
[INFO] [stderr] 90 |   Pow,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Question`
[INFO] [stderr]   --> src/types/punctuator.rs:92:3
[INFO] [stderr]    |
[INFO] [stderr] 92 |   Question,
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RightSh`
[INFO] [stderr]   --> src/types/punctuator.rs:94:3
[INFO] [stderr]    |
[INFO] [stderr] 94 |   RightSh,
[INFO] [stderr]    |   ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `StrictEq`
[INFO] [stderr]    --> src/types/punctuator.rs:100:3
[INFO] [stderr]     |
[INFO] [stderr] 100 |   StrictEq,
[INFO] [stderr]     |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `StrictNotEq`
[INFO] [stderr]    --> src/types/punctuator.rs:102:3
[INFO] [stderr]     |
[INFO] [stderr] 102 |   StrictNotEq,
[INFO] [stderr]     |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `URightSh`
[INFO] [stderr]    --> src/types/punctuator.rs:106:3
[INFO] [stderr]     |
[INFO] [stderr] 106 |   URightSh,
[INFO] [stderr]     |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Xor`
[INFO] [stderr]    --> src/types/punctuator.rs:108:3
[INFO] [stderr]     |
[INFO] [stderr] 108 |   Xor,
[INFO] [stderr]     |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/file_system/reader.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     reader.read_to_string(&mut buf);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 78 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `"docker" "inspect" "de5a1d649fd57ef8c902dcbea914a413a2b5dfd1897400809fd413544fe4bb84"`
[INFO] running `"docker" "rm" "-f" "de5a1d649fd57ef8c902dcbea914a413a2b5dfd1897400809fd413544fe4bb84"`
[INFO] [stdout] de5a1d649fd57ef8c902dcbea914a413a2b5dfd1897400809fd413544fe4bb84
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 239c4ce1a0079170b227cb0150eb8149f596dadee653e2e9477759d9ba68f1de
[INFO] running `"docker" "start" "-a" "239c4ce1a0079170b227cb0150eb8149f596dadee653e2e9477759d9ba68f1de"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling v9 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `expr::Expr`
[INFO] [stderr]  --> src/analyzer.rs:1:20
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::types::{expr::Expr, keyword::Keyword, punctuator::Punctuator};
[INFO] [stderr]   |                    ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::analyzer::Element`
[INFO] [stderr]  --> src/file_system/module.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::analyzer::Element;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `string::ToString`
[INFO] [stderr]  --> src/types/keyword.rs:5:3
[INFO] [stderr]   |
[INFO] [stderr] 5 |   string::ToString,
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `EOF`
[INFO] [stderr]   --> src/analyzer.rs:42:3
[INFO] [stderr]    |
[INFO] [stderr] 42 |   EOF,
[INFO] [stderr]    |   ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RegularExpressionLiteral`
[INFO] [stderr]   --> src/analyzer.rs:47:3
[INFO] [stderr]    |
[INFO] [stderr] 47 |   RegularExpressionLiteral(String, String),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Comment`
[INFO] [stderr]   --> src/analyzer.rs:48:3
[INFO] [stderr]    |
[INFO] [stderr] 48 |   Comment(String),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_file`
[INFO] [stderr]   --> src/file_system/reader.rs:20:3
[INFO] [stderr]    |
[INFO] [stderr] 20 |   pub fn read_file(&mut self, file_path: &str) -> std::io::Result<String> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `String`
[INFO] [stderr]  --> src/types/const.rs:3:3
[INFO] [stderr]   |
[INFO] [stderr] 3 |   String(String),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Float`
[INFO] [stderr]  --> src/types/const.rs:4:3
[INFO] [stderr]   |
[INFO] [stderr] 4 |   Float(f64),
[INFO] [stderr]   |   ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Int`
[INFO] [stderr]  --> src/types/const.rs:5:3
[INFO] [stderr]   |
[INFO] [stderr] 5 |   Int(i64),
[INFO] [stderr]   |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Bool`
[INFO] [stderr]  --> src/types/const.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   Bool(bool),
[INFO] [stderr]   |   ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Undefined`
[INFO] [stderr]  --> src/types/const.rs:7:3
[INFO] [stderr]   |
[INFO] [stderr] 7 |   Undefined,
[INFO] [stderr]   |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Null`
[INFO] [stderr]  --> src/types/const.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   Null,
[INFO] [stderr]   |   ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FunctionDeclaration`
[INFO] [stderr]  --> src/types/expr.rs:5:3
[INFO] [stderr]   |
[INFO] [stderr] 5 |   FunctionDeclaration(String, Vec<Expr>),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GeneratorDeclaration`
[INFO] [stderr]  --> src/types/expr.rs:7:3
[INFO] [stderr]   |
[INFO] [stderr] 7 |   GeneratorDeclaration(String, Vec<Expr>, Vec<Expr>),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AsyncFunctionDeclaration`
[INFO] [stderr]  --> src/types/expr.rs:9:3
[INFO] [stderr]   |
[INFO] [stderr] 9 |   AsyncFunctionDeclaration(String, Vec<Expr>),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AsyncGeneratorDeclaration`
[INFO] [stderr]   --> src/types/expr.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   AsyncGeneratorDeclaration(String, Vec<Expr>, Vec<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ArrowFunction`
[INFO] [stderr]   --> src/types/expr.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   ArrowFunction(Option<String>, Vec<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AsyncArrowFunction`
[INFO] [stderr]   --> src/types/expr.rs:15:3
[INFO] [stderr]    |
[INFO] [stderr] 15 |   AsyncArrowFunction(Option<String>, Vec<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ClassDeclaration`
[INFO] [stderr]   --> src/types/expr.rs:16:3
[INFO] [stderr]    |
[INFO] [stderr] 16 |   ClassDeclaration(String),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Const`
[INFO] [stderr]   --> src/types/expr.rs:20:3
[INFO] [stderr]    |
[INFO] [stderr] 20 |   Const(Const),
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ConstDeclaration`
[INFO] [stderr]   --> src/types/expr.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 |   ConstDeclaration(Vec<(String, Expr)>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Construct`
[INFO] [stderr]   --> src/types/expr.rs:22:3
[INFO] [stderr]    |
[INFO] [stderr] 22 |   Construct(Box<Expr>, Vec<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Block`
[INFO] [stderr]   --> src/types/expr.rs:23:3
[INFO] [stderr]    |
[INFO] [stderr] 23 |   Block(Vec<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Local`
[INFO] [stderr]   --> src/types/expr.rs:24:3
[INFO] [stderr]    |
[INFO] [stderr] 24 |   Local(String),
[INFO] [stderr]    |   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GetConstField`
[INFO] [stderr]   --> src/types/expr.rs:25:3
[INFO] [stderr]    |
[INFO] [stderr] 25 |   GetConstField(Box<Expr>, String),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GetField`
[INFO] [stderr]   --> src/types/expr.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |   GetField(Box<Expr>, Box<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Call`
[INFO] [stderr]   --> src/types/expr.rs:27:3
[INFO] [stderr]    |
[INFO] [stderr] 27 |   Call(Box<Expr>, Vec<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `WhileLoop`
[INFO] [stderr]   --> src/types/expr.rs:28:3
[INFO] [stderr]    |
[INFO] [stderr] 28 |   WhileLoop(Box<Expr>, Box<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `If`
[INFO] [stderr]   --> src/types/expr.rs:29:3
[INFO] [stderr]    |
[INFO] [stderr] 29 |   If(Box<Expr>, Box<Expr>, Option<Box<Expr>>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Switch`
[INFO] [stderr]   --> src/types/expr.rs:30:3
[INFO] [stderr]    |
[INFO] [stderr] 30 |   Switch(Box<Expr>, Vec<(Expr, Vec<Expr>)>, Option<Box<Expr>>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ArrayDeclaration`
[INFO] [stderr]   --> src/types/expr.rs:32:3
[INFO] [stderr]    |
[INFO] [stderr] 32 |   ArrayDeclaration(Vec<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Return`
[INFO] [stderr]   --> src/types/expr.rs:33:3
[INFO] [stderr]    |
[INFO] [stderr] 33 |   Return(Option<Box<Expr>>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Throw`
[INFO] [stderr]   --> src/types/expr.rs:34:3
[INFO] [stderr]    |
[INFO] [stderr] 34 |   Throw(Box<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Assign`
[INFO] [stderr]   --> src/types/expr.rs:35:3
[INFO] [stderr]    |
[INFO] [stderr] 35 |   Assign(Box<Expr>, Box<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `VarDeclaration`
[INFO] [stderr]   --> src/types/expr.rs:36:3
[INFO] [stderr]    |
[INFO] [stderr] 36 |   VarDeclaration(Vec<(String, Option<Expr>)>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LetDeclaration`
[INFO] [stderr]   --> src/types/expr.rs:37:3
[INFO] [stderr]    |
[INFO] [stderr] 37 |   LetDeclaration(Vec<(String, Option<Expr>)>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `TypeOf`
[INFO] [stderr]   --> src/types/expr.rs:38:3
[INFO] [stderr]    |
[INFO] [stderr] 38 |   TypeOf(Box<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `And`
[INFO] [stderr]  --> src/types/punctuator.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   And,
[INFO] [stderr]   |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Arrow`
[INFO] [stderr]   --> src/types/punctuator.rs:10:3
[INFO] [stderr]    |
[INFO] [stderr] 10 |   Arrow,
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignAdd`
[INFO] [stderr]   --> src/types/punctuator.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   AssignAdd,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignAnd`
[INFO] [stderr]   --> src/types/punctuator.rs:16:3
[INFO] [stderr]    |
[INFO] [stderr] 16 |   AssignAnd,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignDiv`
[INFO] [stderr]   --> src/types/punctuator.rs:18:3
[INFO] [stderr]    |
[INFO] [stderr] 18 |   AssignDiv,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignLeftSh`
[INFO] [stderr]   --> src/types/punctuator.rs:20:3
[INFO] [stderr]    |
[INFO] [stderr] 20 |   AssignLeftSh,
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignMod`
[INFO] [stderr]   --> src/types/punctuator.rs:22:3
[INFO] [stderr]    |
[INFO] [stderr] 22 |   AssignMod,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignMul`
[INFO] [stderr]   --> src/types/punctuator.rs:24:3
[INFO] [stderr]    |
[INFO] [stderr] 24 |   AssignMul,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignOr`
[INFO] [stderr]   --> src/types/punctuator.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |   AssignOr,
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignPow`
[INFO] [stderr]   --> src/types/punctuator.rs:28:3
[INFO] [stderr]    |
[INFO] [stderr] 28 |   AssignPow,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignRightSh`
[INFO] [stderr]   --> src/types/punctuator.rs:30:3
[INFO] [stderr]    |
[INFO] [stderr] 30 |   AssignRightSh,
[INFO] [stderr]    |   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignSub`
[INFO] [stderr]   --> src/types/punctuator.rs:32:3
[INFO] [stderr]    |
[INFO] [stderr] 32 |   AssignSub,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignURightSh`
[INFO] [stderr]   --> src/types/punctuator.rs:34:3
[INFO] [stderr]    |
[INFO] [stderr] 34 |   AssignURightSh,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignXor`
[INFO] [stderr]   --> src/types/punctuator.rs:36:3
[INFO] [stderr]    |
[INFO] [stderr] 36 |   AssignXor,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BoolAnd`
[INFO] [stderr]   --> src/types/punctuator.rs:38:3
[INFO] [stderr]    |
[INFO] [stderr] 38 |   BoolAnd,
[INFO] [stderr]    |   ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BoolOr`
[INFO] [stderr]   --> src/types/punctuator.rs:40:3
[INFO] [stderr]    |
[INFO] [stderr] 40 |   BoolOr,
[INFO] [stderr]    |   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Colon`
[INFO] [stderr]   --> src/types/punctuator.rs:48:3
[INFO] [stderr]    |
[INFO] [stderr] 48 |   Colon,
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Dec`
[INFO] [stderr]   --> src/types/punctuator.rs:52:3
[INFO] [stderr]    |
[INFO] [stderr] 52 |   Dec,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Div`
[INFO] [stderr]   --> src/types/punctuator.rs:54:3
[INFO] [stderr]    |
[INFO] [stderr] 54 |   Div,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Eq`
[INFO] [stderr]   --> src/types/punctuator.rs:58:3
[INFO] [stderr]    |
[INFO] [stderr] 58 |   Eq,
[INFO] [stderr]    |   ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GreaterThan`
[INFO] [stderr]   --> src/types/punctuator.rs:60:3
[INFO] [stderr]    |
[INFO] [stderr] 60 |   GreaterThan,
[INFO] [stderr]    |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GreaterThanOrEq`
[INFO] [stderr]   --> src/types/punctuator.rs:62:3
[INFO] [stderr]    |
[INFO] [stderr] 62 |   GreaterThanOrEq,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Inc`
[INFO] [stderr]   --> src/types/punctuator.rs:64:3
[INFO] [stderr]    |
[INFO] [stderr] 64 |   Inc,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LeftSh`
[INFO] [stderr]   --> src/types/punctuator.rs:66:3
[INFO] [stderr]    |
[INFO] [stderr] 66 |   LeftSh,
[INFO] [stderr]    |   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LessThan`
[INFO] [stderr]   --> src/types/punctuator.rs:68:3
[INFO] [stderr]    |
[INFO] [stderr] 68 |   LessThan,
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LessThanOrEq`
[INFO] [stderr]   --> src/types/punctuator.rs:70:3
[INFO] [stderr]    |
[INFO] [stderr] 70 |   LessThanOrEq,
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Mod`
[INFO] [stderr]   --> src/types/punctuator.rs:72:3
[INFO] [stderr]    |
[INFO] [stderr] 72 |   Mod,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Mul`
[INFO] [stderr]   --> src/types/punctuator.rs:74:3
[INFO] [stderr]    |
[INFO] [stderr] 74 |   Mul,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Neg`
[INFO] [stderr]   --> src/types/punctuator.rs:76:3
[INFO] [stderr]    |
[INFO] [stderr] 76 |   Neg,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Not`
[INFO] [stderr]   --> src/types/punctuator.rs:78:3
[INFO] [stderr]    |
[INFO] [stderr] 78 |   Not,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NotEq`
[INFO] [stderr]   --> src/types/punctuator.rs:80:3
[INFO] [stderr]    |
[INFO] [stderr] 80 |   NotEq,
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Or`
[INFO] [stderr]   --> src/types/punctuator.rs:88:3
[INFO] [stderr]    |
[INFO] [stderr] 88 |   Or,
[INFO] [stderr]    |   ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Pow`
[INFO] [stderr]   --> src/types/punctuator.rs:90:3
[INFO] [stderr]    |
[INFO] [stderr] 90 |   Pow,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Question`
[INFO] [stderr]   --> src/types/punctuator.rs:92:3
[INFO] [stderr]    |
[INFO] [stderr] 92 |   Question,
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RightSh`
[INFO] [stderr]   --> src/types/punctuator.rs:94:3
[INFO] [stderr]    |
[INFO] [stderr] 94 |   RightSh,
[INFO] [stderr]    |   ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `StrictEq`
[INFO] [stderr]    --> src/types/punctuator.rs:100:3
[INFO] [stderr]     |
[INFO] [stderr] 100 |   StrictEq,
[INFO] [stderr]     |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `StrictNotEq`
[INFO] [stderr]    --> src/types/punctuator.rs:102:3
[INFO] [stderr]     |
[INFO] [stderr] 102 |   StrictNotEq,
[INFO] [stderr]     |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `URightSh`
[INFO] [stderr]    --> src/types/punctuator.rs:106:3
[INFO] [stderr]     |
[INFO] [stderr] 106 |   URightSh,
[INFO] [stderr]     |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Xor`
[INFO] [stderr]    --> src/types/punctuator.rs:108:3
[INFO] [stderr]     |
[INFO] [stderr] 108 |   Xor,
[INFO] [stderr]     |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/file_system/reader.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     reader.read_to_string(&mut buf);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 78 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "239c4ce1a0079170b227cb0150eb8149f596dadee653e2e9477759d9ba68f1de"`
[INFO] running `"docker" "rm" "-f" "239c4ce1a0079170b227cb0150eb8149f596dadee653e2e9477759d9ba68f1de"`
[INFO] [stdout] 239c4ce1a0079170b227cb0150eb8149f596dadee653e2e9477759d9ba68f1de
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ca3008db4ebe125f6f58183a3a0a7d42981ee0be8c72b6882ab29dffd474da71
[INFO] running `"docker" "start" "-a" "ca3008db4ebe125f6f58183a3a0a7d42981ee0be8c72b6882ab29dffd474da71"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused import: `expr::Expr`
[INFO] [stderr]  --> src/analyzer.rs:1:20
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::types::{expr::Expr, keyword::Keyword, punctuator::Punctuator};
[INFO] [stderr]   |                    ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::analyzer::Element`
[INFO] [stderr]  --> src/file_system/module.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::analyzer::Element;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `string::ToString`
[INFO] [stderr]  --> src/types/keyword.rs:5:3
[INFO] [stderr]   |
[INFO] [stderr] 5 |   string::ToString,
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `EOF`
[INFO] [stderr]   --> src/analyzer.rs:42:3
[INFO] [stderr]    |
[INFO] [stderr] 42 |   EOF,
[INFO] [stderr]    |   ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RegularExpressionLiteral`
[INFO] [stderr]   --> src/analyzer.rs:47:3
[INFO] [stderr]    |
[INFO] [stderr] 47 |   RegularExpressionLiteral(String, String),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Comment`
[INFO] [stderr]   --> src/analyzer.rs:48:3
[INFO] [stderr]    |
[INFO] [stderr] 48 |   Comment(String),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_file`
[INFO] [stderr]   --> src/file_system/reader.rs:20:3
[INFO] [stderr]    |
[INFO] [stderr] 20 |   pub fn read_file(&mut self, file_path: &str) -> std::io::Result<String> {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `String`
[INFO] [stderr]  --> src/types/const.rs:3:3
[INFO] [stderr]   |
[INFO] [stderr] 3 |   String(String),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Float`
[INFO] [stderr]  --> src/types/const.rs:4:3
[INFO] [stderr]   |
[INFO] [stderr] 4 |   Float(f64),
[INFO] [stderr]   |   ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Int`
[INFO] [stderr]  --> src/types/const.rs:5:3
[INFO] [stderr]   |
[INFO] [stderr] 5 |   Int(i64),
[INFO] [stderr]   |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Bool`
[INFO] [stderr]  --> src/types/const.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   Bool(bool),
[INFO] [stderr]   |   ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Undefined`
[INFO] [stderr]  --> src/types/const.rs:7:3
[INFO] [stderr]   |
[INFO] [stderr] 7 |   Undefined,
[INFO] [stderr]   |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Null`
[INFO] [stderr]  --> src/types/const.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   Null,
[INFO] [stderr]   |   ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FunctionDeclaration`
[INFO] [stderr]  --> src/types/expr.rs:5:3
[INFO] [stderr]   |
[INFO] [stderr] 5 |   FunctionDeclaration(String, Vec<Expr>),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GeneratorDeclaration`
[INFO] [stderr]  --> src/types/expr.rs:7:3
[INFO] [stderr]   |
[INFO] [stderr] 7 |   GeneratorDeclaration(String, Vec<Expr>, Vec<Expr>),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AsyncFunctionDeclaration`
[INFO] [stderr]  --> src/types/expr.rs:9:3
[INFO] [stderr]   |
[INFO] [stderr] 9 |   AsyncFunctionDeclaration(String, Vec<Expr>),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AsyncGeneratorDeclaration`
[INFO] [stderr]   --> src/types/expr.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   AsyncGeneratorDeclaration(String, Vec<Expr>, Vec<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ArrowFunction`
[INFO] [stderr]   --> src/types/expr.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   ArrowFunction(Option<String>, Vec<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AsyncArrowFunction`
[INFO] [stderr]   --> src/types/expr.rs:15:3
[INFO] [stderr]    |
[INFO] [stderr] 15 |   AsyncArrowFunction(Option<String>, Vec<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ClassDeclaration`
[INFO] [stderr]   --> src/types/expr.rs:16:3
[INFO] [stderr]    |
[INFO] [stderr] 16 |   ClassDeclaration(String),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Const`
[INFO] [stderr]   --> src/types/expr.rs:20:3
[INFO] [stderr]    |
[INFO] [stderr] 20 |   Const(Const),
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ConstDeclaration`
[INFO] [stderr]   --> src/types/expr.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 |   ConstDeclaration(Vec<(String, Expr)>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Construct`
[INFO] [stderr]   --> src/types/expr.rs:22:3
[INFO] [stderr]    |
[INFO] [stderr] 22 |   Construct(Box<Expr>, Vec<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Block`
[INFO] [stderr]   --> src/types/expr.rs:23:3
[INFO] [stderr]    |
[INFO] [stderr] 23 |   Block(Vec<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Local`
[INFO] [stderr]   --> src/types/expr.rs:24:3
[INFO] [stderr]    |
[INFO] [stderr] 24 |   Local(String),
[INFO] [stderr]    |   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GetConstField`
[INFO] [stderr]   --> src/types/expr.rs:25:3
[INFO] [stderr]    |
[INFO] [stderr] 25 |   GetConstField(Box<Expr>, String),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GetField`
[INFO] [stderr]   --> src/types/expr.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |   GetField(Box<Expr>, Box<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Call`
[INFO] [stderr]   --> src/types/expr.rs:27:3
[INFO] [stderr]    |
[INFO] [stderr] 27 |   Call(Box<Expr>, Vec<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `WhileLoop`
[INFO] [stderr]   --> src/types/expr.rs:28:3
[INFO] [stderr]    |
[INFO] [stderr] 28 |   WhileLoop(Box<Expr>, Box<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `If`
[INFO] [stderr]   --> src/types/expr.rs:29:3
[INFO] [stderr]    |
[INFO] [stderr] 29 |   If(Box<Expr>, Box<Expr>, Option<Box<Expr>>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Switch`
[INFO] [stderr]   --> src/types/expr.rs:30:3
[INFO] [stderr]    |
[INFO] [stderr] 30 |   Switch(Box<Expr>, Vec<(Expr, Vec<Expr>)>, Option<Box<Expr>>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ArrayDeclaration`
[INFO] [stderr]   --> src/types/expr.rs:32:3
[INFO] [stderr]    |
[INFO] [stderr] 32 |   ArrayDeclaration(Vec<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Return`
[INFO] [stderr]   --> src/types/expr.rs:33:3
[INFO] [stderr]    |
[INFO] [stderr] 33 |   Return(Option<Box<Expr>>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Throw`
[INFO] [stderr]   --> src/types/expr.rs:34:3
[INFO] [stderr]    |
[INFO] [stderr] 34 |   Throw(Box<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Assign`
[INFO] [stderr]   --> src/types/expr.rs:35:3
[INFO] [stderr]    |
[INFO] [stderr] 35 |   Assign(Box<Expr>, Box<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `VarDeclaration`
[INFO] [stderr]   --> src/types/expr.rs:36:3
[INFO] [stderr]    |
[INFO] [stderr] 36 |   VarDeclaration(Vec<(String, Option<Expr>)>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LetDeclaration`
[INFO] [stderr]   --> src/types/expr.rs:37:3
[INFO] [stderr]    |
[INFO] [stderr] 37 |   LetDeclaration(Vec<(String, Option<Expr>)>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `TypeOf`
[INFO] [stderr]   --> src/types/expr.rs:38:3
[INFO] [stderr]    |
[INFO] [stderr] 38 |   TypeOf(Box<Expr>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `And`
[INFO] [stderr]  --> src/types/punctuator.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   And,
[INFO] [stderr]   |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Arrow`
[INFO] [stderr]   --> src/types/punctuator.rs:10:3
[INFO] [stderr]    |
[INFO] [stderr] 10 |   Arrow,
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignAdd`
[INFO] [stderr]   --> src/types/punctuator.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   AssignAdd,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignAnd`
[INFO] [stderr]   --> src/types/punctuator.rs:16:3
[INFO] [stderr]    |
[INFO] [stderr] 16 |   AssignAnd,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignDiv`
[INFO] [stderr]   --> src/types/punctuator.rs:18:3
[INFO] [stderr]    |
[INFO] [stderr] 18 |   AssignDiv,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignLeftSh`
[INFO] [stderr]   --> src/types/punctuator.rs:20:3
[INFO] [stderr]    |
[INFO] [stderr] 20 |   AssignLeftSh,
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignMod`
[INFO] [stderr]   --> src/types/punctuator.rs:22:3
[INFO] [stderr]    |
[INFO] [stderr] 22 |   AssignMod,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignMul`
[INFO] [stderr]   --> src/types/punctuator.rs:24:3
[INFO] [stderr]    |
[INFO] [stderr] 24 |   AssignMul,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignOr`
[INFO] [stderr]   --> src/types/punctuator.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |   AssignOr,
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignPow`
[INFO] [stderr]   --> src/types/punctuator.rs:28:3
[INFO] [stderr]    |
[INFO] [stderr] 28 |   AssignPow,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignRightSh`
[INFO] [stderr]   --> src/types/punctuator.rs:30:3
[INFO] [stderr]    |
[INFO] [stderr] 30 |   AssignRightSh,
[INFO] [stderr]    |   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignSub`
[INFO] [stderr]   --> src/types/punctuator.rs:32:3
[INFO] [stderr]    |
[INFO] [stderr] 32 |   AssignSub,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignURightSh`
[INFO] [stderr]   --> src/types/punctuator.rs:34:3
[INFO] [stderr]    |
[INFO] [stderr] 34 |   AssignURightSh,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `AssignXor`
[INFO] [stderr]   --> src/types/punctuator.rs:36:3
[INFO] [stderr]    |
[INFO] [stderr] 36 |   AssignXor,
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BoolAnd`
[INFO] [stderr]   --> src/types/punctuator.rs:38:3
[INFO] [stderr]    |
[INFO] [stderr] 38 |   BoolAnd,
[INFO] [stderr]    |   ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BoolOr`
[INFO] [stderr]   --> src/types/punctuator.rs:40:3
[INFO] [stderr]    |
[INFO] [stderr] 40 |   BoolOr,
[INFO] [stderr]    |   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Colon`
[INFO] [stderr]   --> src/types/punctuator.rs:48:3
[INFO] [stderr]    |
[INFO] [stderr] 48 |   Colon,
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Dec`
[INFO] [stderr]   --> src/types/punctuator.rs:52:3
[INFO] [stderr]    |
[INFO] [stderr] 52 |   Dec,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Div`
[INFO] [stderr]   --> src/types/punctuator.rs:54:3
[INFO] [stderr]    |
[INFO] [stderr] 54 |   Div,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Eq`
[INFO] [stderr]   --> src/types/punctuator.rs:58:3
[INFO] [stderr]    |
[INFO] [stderr] 58 |   Eq,
[INFO] [stderr]    |   ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GreaterThan`
[INFO] [stderr]   --> src/types/punctuator.rs:60:3
[INFO] [stderr]    |
[INFO] [stderr] 60 |   GreaterThan,
[INFO] [stderr]    |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GreaterThanOrEq`
[INFO] [stderr]   --> src/types/punctuator.rs:62:3
[INFO] [stderr]    |
[INFO] [stderr] 62 |   GreaterThanOrEq,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Inc`
[INFO] [stderr]   --> src/types/punctuator.rs:64:3
[INFO] [stderr]    |
[INFO] [stderr] 64 |   Inc,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LeftSh`
[INFO] [stderr]   --> src/types/punctuator.rs:66:3
[INFO] [stderr]    |
[INFO] [stderr] 66 |   LeftSh,
[INFO] [stderr]    |   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LessThan`
[INFO] [stderr]   --> src/types/punctuator.rs:68:3
[INFO] [stderr]    |
[INFO] [stderr] 68 |   LessThan,
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LessThanOrEq`
[INFO] [stderr]   --> src/types/punctuator.rs:70:3
[INFO] [stderr]    |
[INFO] [stderr] 70 |   LessThanOrEq,
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Mod`
[INFO] [stderr]   --> src/types/punctuator.rs:72:3
[INFO] [stderr]    |
[INFO] [stderr] 72 |   Mod,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Mul`
[INFO] [stderr]   --> src/types/punctuator.rs:74:3
[INFO] [stderr]    |
[INFO] [stderr] 74 |   Mul,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Neg`
[INFO] [stderr]   --> src/types/punctuator.rs:76:3
[INFO] [stderr]    |
[INFO] [stderr] 76 |   Neg,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Not`
[INFO] [stderr]   --> src/types/punctuator.rs:78:3
[INFO] [stderr]    |
[INFO] [stderr] 78 |   Not,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NotEq`
[INFO] [stderr]   --> src/types/punctuator.rs:80:3
[INFO] [stderr]    |
[INFO] [stderr] 80 |   NotEq,
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Or`
[INFO] [stderr]   --> src/types/punctuator.rs:88:3
[INFO] [stderr]    |
[INFO] [stderr] 88 |   Or,
[INFO] [stderr]    |   ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Pow`
[INFO] [stderr]   --> src/types/punctuator.rs:90:3
[INFO] [stderr]    |
[INFO] [stderr] 90 |   Pow,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Question`
[INFO] [stderr]   --> src/types/punctuator.rs:92:3
[INFO] [stderr]    |
[INFO] [stderr] 92 |   Question,
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RightSh`
[INFO] [stderr]   --> src/types/punctuator.rs:94:3
[INFO] [stderr]    |
[INFO] [stderr] 94 |   RightSh,
[INFO] [stderr]    |   ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `StrictEq`
[INFO] [stderr]    --> src/types/punctuator.rs:100:3
[INFO] [stderr]     |
[INFO] [stderr] 100 |   StrictEq,
[INFO] [stderr]     |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `StrictNotEq`
[INFO] [stderr]    --> src/types/punctuator.rs:102:3
[INFO] [stderr]     |
[INFO] [stderr] 102 |   StrictNotEq,
[INFO] [stderr]     |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `URightSh`
[INFO] [stderr]    --> src/types/punctuator.rs:106:3
[INFO] [stderr]     |
[INFO] [stderr] 106 |   URightSh,
[INFO] [stderr]     |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Xor`
[INFO] [stderr]    --> src/types/punctuator.rs:108:3
[INFO] [stderr]     |
[INFO] [stderr] 108 |   Xor,
[INFO] [stderr]     |   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/file_system/reader.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     reader.read_to_string(&mut buf);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 78 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/v9-78bebefff1ba1424
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "ca3008db4ebe125f6f58183a3a0a7d42981ee0be8c72b6882ab29dffd474da71"`
[INFO] running `"docker" "rm" "-f" "ca3008db4ebe125f6f58183a3a0a7d42981ee0be8c72b6882ab29dffd474da71"`
[INFO] [stdout] ca3008db4ebe125f6f58183a3a0a7d42981ee0be8c72b6882ab29dffd474da71