[INFO] cloning repository https://github.com/montyaxn/lung
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/montyaxn/lung" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmontyaxn%2Flung", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmontyaxn%2Flung'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04154c919e3bb0aa7863dd63f21dd439e1feefa6
[INFO] checking montyaxn/lung against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmontyaxn%2Flung" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/montyaxn/lung on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/montyaxn/lung
[INFO] finished tweaking git repo https://github.com/montyaxn/lung
[INFO] tweaked toml for git repo https://github.com/montyaxn/lung written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/montyaxn/lung already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59544e115c59cffaa93d2db1b449490312af96b6c5e57d81a0131cb3b75f88f5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "59544e115c59cffaa93d2db1b449490312af96b6c5e57d81a0131cb3b75f88f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59544e115c59cffaa93d2db1b449490312af96b6c5e57d81a0131cb3b75f88f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59544e115c59cffaa93d2db1b449490312af96b6c5e57d81a0131cb3b75f88f5", kill_on_drop: false }`
[INFO] [stdout] 59544e115c59cffaa93d2db1b449490312af96b6c5e57d81a0131cb3b75f88f5
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f8f63ffa45f6cb99e9821a9898577fcd80bf4b4940170081bdeacf54068e7ac
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2f8f63ffa45f6cb99e9821a9898577fcd80bf4b4940170081bdeacf54068e7ac", kill_on_drop: false }`
[INFO] [stderr]     Checking lung v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::lexer::*`
[INFO] [stdout]  --> src/parser.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::lexer::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::parser::*`
[INFO] [stdout]  --> src/typing.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::parser::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::lexer::*`
[INFO] [stdout]  --> src/typing.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::lexer::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexer`
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let lexer = lexer::Lexer::from_file("test.txt");
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_lexer`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexer`
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let lexer = lexer::Lexer::from_file("test.txt");
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_lexer`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexer`
[INFO] [stdout]   --> src/lexer.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mut lexer = Lexer::from_file("src/test/test.txt").unwrap();
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lexer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lexer`
[INFO] [stdout]   --> src/lexer.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut lexer = Lexer::from_file("src/test/test_parser.txt").unwrap();
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lexer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lexer.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mut lexer = Lexer::from_file("src/test/test.txt").unwrap();
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/lexer.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut lexer = Lexer::from_file("src/test/test_parser.txt").unwrap();
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Eater`
[INFO] [stdout]   --> src/lexer.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct Eater<'a> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]   --> src/lexer.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn from_str(input: &str) -> Eater {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_char`
[INFO] [stdout]   --> src/lexer.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn next_char(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `skip_white`
[INFO] [stdout]   --> src/lexer.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn skip_white(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eat_alnum_dump`
[INFO] [stdout]   --> src/lexer.rs:84:8
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn eat_alnum_dump(&mut self) -> (String, usize, usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eat_num_dump`
[INFO] [stdout]    --> src/lexer.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn eat_num_dump(&mut self) -> (String, usize, usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eat_token_dump`
[INFO] [stdout]    --> src/lexer.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn eat_token_dump(&mut self) -> Result<Token, &str> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `buffer`
[INFO] [stdout]    --> src/lexer.rs:296:5
[INFO] [stdout]     |
[INFO] [stdout] 296 |     buffer: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `lex`
[INFO] [stdout]    --> src/lexer.rs:307:12
[INFO] [stdout]     |
[INFO] [stdout] 307 |     pub fn lex(&mut self) -> Result<Vec<Token>, &str> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Parser`
[INFO] [stdout]   --> src/parser.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Parser {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/parser.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn new(tokens: Vec<Token>) -> Parser {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `make_error`
[INFO] [stdout]   --> src/parser.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn make_error(&mut self, expectation: &str) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_program`
[INFO] [stdout]   --> src/parser.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn parse_program(&mut self) -> Result<Box<Expr>, String> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_token`
[INFO] [stdout]   --> src/parser.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn next_token(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ct_check`
[INFO] [stdout]   --> src/parser.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn ct_check(&mut self, token: TokenKind) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_args`
[INFO] [stdout]   --> src/parser.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn read_args(&mut self) -> Result<Vec<Box<Expr>>, String> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_block`
[INFO] [stdout]    --> src/parser.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 110 |     fn read_block(&mut self) -> Result<Box<Expr>, String> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `dump`
[INFO] [stdout]   --> src/lexer.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn dump(tokens: Vec<Token>) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_args_decl`
[INFO] [stdout]    --> src/parser.rs:135:8
[INFO] [stdout]     |
[INFO] [stdout] 135 |     fn read_args_decl(&mut self) -> Result<Vec<ArgDecl>, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_type_args`
[INFO] [stdout]    --> src/parser.rs:169:8
[INFO] [stdout]     |
[INFO] [stdout] 169 |     fn read_type_args(&mut self) -> Result<Vec<Box<Type>>, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `input`
[INFO] [stdout]   --> src/lexer.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     input: &'a str,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_type`
[INFO] [stdout]    --> src/parser.rs:184:8
[INFO] [stdout]     |
[INFO] [stdout] 184 |     fn read_type(&mut self) -> Result<Type, String> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_ret_decl`
[INFO] [stdout]    --> src/parser.rs:212:8
[INFO] [stdout]     |
[INFO] [stdout] 212 |     fn read_ret_decl(&mut self) -> Result<Type, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NamedFunc`
[INFO] [stdout]   --> src/syntax.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | /     NamedFunc {
[INFO] [stdout] 63 | |         name: String,
[INFO] [stdout] 64 | |         args_def: Vec<ArgDecl>,
[INFO] [stdout] 65 | |         ret_decl: Type,
[INFO] [stdout] 66 | |         block: Box<Expr>,
[INFO] [stdout] 67 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_anon_func`
[INFO] [stdout]    --> src/parser.rs:220:8
[INFO] [stdout]     |
[INFO] [stdout] 220 |     fn read_anon_func(&mut self) -> Result<Box<Expr>, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `lead_expr`
[INFO] [stdout]    --> src/parser.rs:245:8
[INFO] [stdout]     |
[INFO] [stdout] 245 |     fn lead_expr(token: TokenKind) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into_type`
[INFO] [stdout]   --> src/syntax.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn into_type(self) -> Type {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_expr`
[INFO] [stdout]    --> src/parser.rs:252:8
[INFO] [stdout]     |
[INFO] [stdout] 252 |     fn read_expr(&mut self) -> Result<Box<Expr>, String> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `lead_simple_expr`
[INFO] [stdout]    --> src/parser.rs:280:8
[INFO] [stdout]     |
[INFO] [stdout] 280 |     fn lead_simple_expr(token: TokenKind) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_simple_expr`
[INFO] [stdout]    --> src/parser.rs:293:8
[INFO] [stdout]     |
[INFO] [stdout] 293 |     fn read_simple_expr(&mut self) -> Result<Box<Expr>, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Func`
[INFO] [stdout]   --> src/syntax.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     Func,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FuncAnon`
[INFO] [stdout]   --> src/syntax.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     FuncAnon,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RParen`
[INFO] [stdout]   --> src/syntax.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     RParen,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LParen`
[INFO] [stdout]   --> src/syntax.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     LParen,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RBrace`
[INFO] [stdout]   --> src/syntax.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     RBrace,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LBrace`
[INFO] [stdout]   --> src/syntax.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     LBrace,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Comma`
[INFO] [stdout]   --> src/syntax.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     Comma,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Colon`
[INFO] [stdout]   --> src/syntax.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     Colon,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SemiColon`
[INFO] [stdout]   --> src/syntax.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     SemiColon,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Arrow`
[INFO] [stdout]   --> src/syntax.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Arrow,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Num`
[INFO] [stdout]   --> src/syntax.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Num(String),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Ident`
[INFO] [stdout]   --> src/syntax.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     Ident(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UnitVal`
[INFO] [stdout]   --> src/syntax.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     UnitVal,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `I32`
[INFO] [stdout]   --> src/syntax.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     I32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UnitType`
[INFO] [stdout]   --> src/syntax.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     UnitType,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FuncType`
[INFO] [stdout]   --> src/syntax.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     FuncType,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EOF`
[INFO] [stdout]   --> src/syntax.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     EOF,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `I32`
[INFO] [stdout]   --> src/syntax.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | /     I32 {
[INFO] [stdout] 60 | |         val: i32,
[INFO] [stdout] 61 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NamedFunc`
[INFO] [stdout]   --> src/syntax.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | /     NamedFunc {
[INFO] [stdout] 63 | |         name: String,
[INFO] [stdout] 64 | |         args_def: Vec<ArgDecl>,
[INFO] [stdout] 65 | |         ret_decl: Type,
[INFO] [stdout] 66 | |         block: Box<Expr>,
[INFO] [stdout] 67 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unit`
[INFO] [stdout]   --> src/syntax.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     Unit,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AnonFunc`
[INFO] [stdout]   --> src/syntax.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | /     AnonFunc {
[INFO] [stdout] 70 | |         args_decl: Vec<ArgDecl>,
[INFO] [stdout] 71 | |         ret_decl: Type,
[INFO] [stdout] 72 | |         block: Box<Expr>,
[INFO] [stdout] 73 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Block`
[INFO] [stdout]   --> src/syntax.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 | /     Block {
[INFO] [stdout] 77 | |         exprs: Vec<Box<Expr>>,
[INFO] [stdout] 78 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Var`
[INFO] [stdout]   --> src/syntax.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 | /     Var {
[INFO] [stdout] 82 | |         name: String,
[INFO] [stdout] 83 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FuncApp`
[INFO] [stdout]   --> src/syntax.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 | /     FuncApp {
[INFO] [stdout] 87 | |         callee: Box<Expr>,
[INFO] [stdout] 88 | |         args: Vec<Box<Expr>>,
[INFO] [stdout] 89 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into_type`
[INFO] [stdout]   --> src/syntax.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn into_type(self) -> Type {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `I32`
[INFO] [stdout]  --> src/type_def.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     I32,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unit`
[INFO] [stdout]  --> src/type_def.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Unit,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Func`
[INFO] [stdout]   --> src/type_def.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     Func {
[INFO] [stdout] 11 | |         args: Vec<Box<Type>>,
[INFO] [stdout] 12 | |         ret: Box<Type>,
[INFO] [stdout] 13 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UserType`
[INFO] [stdout]   --> src/type_def.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     UserType {
[INFO] [stdout] 17 | |         name: String,
[INFO] [stdout] 18 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/type_def.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn new(expr: Box<Expr>, expr_type: Option<Type>) -> TypedExpr {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `VarTypeTable`
[INFO] [stdout]   --> src/typing.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct VarTypeTable {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/typing.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn get(&self, name: &String) -> Option<&Type> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_args_decl`
[INFO] [stdout]   --> src/typing.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn from_args_decl(decls: Vec<ArgDecl>) -> VarTypeTable {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Context`
[INFO] [stdout]   --> src/typing.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | struct Context {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/typing.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn get(&mut self, name: String) -> Result<Type, String> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push_table_from_argsdecl`
[INFO] [stdout]   --> src/typing.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn push_table_from_argsdecl(&mut self, args_decl: Vec<ArgDecl>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/typing.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn new() -> Context {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into_typed_expr`
[INFO] [stdout]   --> src/typing.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn into_typed_expr(self, cxt: &mut Context) -> Result<TypedExpr, String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 68 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "2f8f63ffa45f6cb99e9821a9898577fcd80bf4b4940170081bdeacf54068e7ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f8f63ffa45f6cb99e9821a9898577fcd80bf4b4940170081bdeacf54068e7ac", kill_on_drop: false }`
[INFO] [stdout] 2f8f63ffa45f6cb99e9821a9898577fcd80bf4b4940170081bdeacf54068e7ac