[INFO] cloning repository https://github.com/cre-chan/MCIR
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cre-chan/MCIR" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcre-chan%2FMCIR", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcre-chan%2FMCIR'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 12a6b256c1d58df5879ab7ecacdc00bb286f8fc2
[INFO] checking cre-chan/MCIR against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcre-chan%2FMCIR" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cre-chan/MCIR on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cre-chan/MCIR
[INFO] finished tweaking git repo https://github.com/cre-chan/MCIR
[INFO] tweaked toml for git repo https://github.com/cre-chan/MCIR written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/cre-chan/MCIR 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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking cre-chan/MCIR against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcre-chan%2FMCIR" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cre-chan/MCIR on toolchain 72eda894eb3548c7ba774079ce0afab42958d4ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cre-chan/MCIR
[INFO] finished tweaking git repo https://github.com/cre-chan/MCIR
[INFO] tweaked toml for git repo https://github.com/cre-chan/MCIR written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/cre-chan/MCIR 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" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v0.15.37
[INFO] [stderr]   Downloaded pest v2.1.1
[INFO] [stderr]   Downloaded pest_meta v2.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 212505ce6099612a4c187492b18e348309c8b38cca5190e69d6daf5c50849a76
[INFO] running `Command { std: "docker" "start" "-a" "212505ce6099612a4c187492b18e348309c8b38cca5190e69d6daf5c50849a76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "212505ce6099612a4c187492b18e348309c8b38cca5190e69d6daf5c50849a76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "212505ce6099612a4c187492b18e348309c8b38cca5190e69d6daf5c50849a76", kill_on_drop: false }`
[INFO] [stdout] 212505ce6099612a4c187492b18e348309c8b38cca5190e69d6daf5c50849a76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37a623e9a0b090443b8b6bed9ad3b63090b1c177f0b7316ac51397fb2e640b2e
[INFO] running `Command { std: "docker" "start" "-a" "37a623e9a0b090443b8b6bed9ad3b63090b1c177f0b7316ac51397fb2e640b2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.37
[INFO] [stderr]    Compiling ucd-trie v0.1.1
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]    Compiling pest v2.1.1
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling pest_meta v2.1.1
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking MCIR v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: argument must be of the form: `expected = "error message"`
[INFO] [stdout]   --> src/frontend/parser/tiger_parser/token.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     #[should_panic("Expecting char. Identifier found")]
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: errors in this attribute were erroneously allowed and will become a hard error in a future release
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::frontend::parser::AST::exp`
[INFO] [stdout]  --> src/frontend/parser/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::frontend::parser::AST::exp;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::frontend::parser::AST::exp`
[INFO] [stdout]  --> src/frontend/parser/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::frontend::parser::AST::exp;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `lvalue` should have an upper camel case name
[INFO] [stdout]   --> src/frontend/parser/AST.rs:23:10
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub enum lvalue{
[INFO] [stdout]    |          ^^^^^^ help: convert the identifier to upper camel case: `Lvalue`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `exp` should have an upper camel case name
[INFO] [stdout]   --> src/frontend/parser/AST.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub enum exp{
[INFO] [stdout]    |          ^^^ help: convert the identifier to upper camel case: `Exp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `decl` should have an upper camel case name
[INFO] [stdout]   --> src/frontend/parser/AST.rs:54:10
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub enum decl{
[INFO] [stdout]    |          ^^^^ help: convert the identifier to upper camel case: `Decl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `typ` should have an upper camel case name
[INFO] [stdout]   --> src/frontend/parser/AST.rs:63:10
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub enum typ{
[INFO] [stdout]    |          ^^^ help: convert the identifier to upper camel case: `Typ`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `field` should have an upper camel case name
[INFO] [stdout]   --> src/frontend/parser/AST.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub struct field{ name:Symbol,typ:Symbol }//name:typ
[INFO] [stdout]    |            ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Field`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `fundec` should have an upper camel case name
[INFO] [stdout]   --> src/frontend/parser/AST.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub struct fundec{
[INFO] [stdout]    |            ^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Fundec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `namety` should have an upper camel case name
[INFO] [stdout]   --> src/frontend/parser/AST.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub struct namety{
[INFO] [stdout]    |            ^^^^^^ help: convert the identifier to upper camel case: `Namety`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `efield` should have an upper camel case name
[INFO] [stdout]   --> src/frontend/parser/AST.rs:95:13
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub struct  efield{name:Symbol,expr:exp}
[INFO] [stdout]    |             ^^^^^^ help: convert the identifier to upper camel case: `Efield`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pest::Parser`
[INFO] [stdout]  --> src/frontend/parser/tiger_parser/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use pest::Parser;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pest::iterators::*`
[INFO] [stdout]  --> src/frontend/parser/tiger_parser/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use pest::iterators::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `*`, `self`
[INFO] [stdout]    --> src/frontend/parser/tiger_parser/token.rs:149:24
[INFO] [stdout]     |
[INFO] [stdout] 149 | use super::ParserErr::{self,*};
[INFO] [stdout]     |                        ^^^^ ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `lvalue` should have an upper camel case name
[INFO] [stdout]   --> src/frontend/parser/AST.rs:23:10
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub enum lvalue{
[INFO] [stdout]    |          ^^^^^^ help: convert the identifier to upper camel case: `Lvalue`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `exp` should have an upper camel case name
[INFO] [stdout]   --> src/frontend/parser/AST.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub enum exp{
[INFO] [stdout]    |          ^^^ help: convert the identifier to upper camel case: `Exp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `decl` should have an upper camel case name
[INFO] [stdout]   --> src/frontend/parser/AST.rs:54:10
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub enum decl{
[INFO] [stdout]    |          ^^^^ help: convert the identifier to upper camel case: `Decl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `typ` should have an upper camel case name
[INFO] [stdout]   --> src/frontend/parser/AST.rs:63:10
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub enum typ{
[INFO] [stdout]    |          ^^^ help: convert the identifier to upper camel case: `Typ`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `field` should have an upper camel case name
[INFO] [stdout]   --> src/frontend/parser/AST.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub struct field{ name:Symbol,typ:Symbol }//name:typ
[INFO] [stdout]    |            ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Field`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `fundec` should have an upper camel case name
[INFO] [stdout]   --> src/frontend/parser/AST.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub struct fundec{
[INFO] [stdout]    |            ^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Fundec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `namety` should have an upper camel case name
[INFO] [stdout]   --> src/frontend/parser/AST.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub struct namety{
[INFO] [stdout]    |            ^^^^^^ help: convert the identifier to upper camel case: `Namety`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `efield` should have an upper camel case name
[INFO] [stdout]   --> src/frontend/parser/AST.rs:95:13
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub struct  efield{name:Symbol,expr:exp}
[INFO] [stdout]    |             ^^^^^^ help: convert the identifier to upper camel case: `Efield`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TigerParser` is imported redundantly
[INFO] [stdout]   --> src/frontend/parser/tiger_parser/mod.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     use super::*;
[INFO] [stdout]    |         -------- the item `TigerParser` is already imported here
[INFO] [stdout] 17 |     use crate::frontend::parser::tiger_parser::TigerParser;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/frontend/parser/tiger_parser/mod.rs:35:28
[INFO] [stdout]    |
[INFO] [stdout] 35 |         src.read_to_string((&mut src_string));
[INFO] [stdout]    |                            ^               ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 35 -         src.read_to_string((&mut src_string));
[INFO] [stdout] 35 +         src.read_to_string(&mut src_string);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/frontend/parser/tiger_parser/token.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     use std::fs::File;
[INFO] [stdout]   |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> src/frontend/parser/tiger_parser/token.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     use std::io::Read;
[INFO] [stdout]   |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `*`, `self`
[INFO] [stdout]    --> src/frontend/parser/tiger_parser/token.rs:149:24
[INFO] [stdout]     |
[INFO] [stdout] 149 | use super::ParserErr::{self,*};
[INFO] [stdout]     |                        ^^^^ ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]    --> src/frontend/parser/tiger_parser/token.rs:261:1
[INFO] [stdout]     |
[INFO] [stdout] 261 | #[allow()]
[INFO] [stdout]     | ^^^^^^^^^^ help: remove this attribute
[INFO] [stdout]     |
[INFO] [stdout]     = note: attribute `allow` with an empty list has no effect
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]    --> src/frontend/parser/tiger_parser/token.rs:261:1
[INFO] [stdout]     |
[INFO] [stdout] 261 | #[allow()]
[INFO] [stdout]     | ^^^^^^^^^^ help: remove this attribute
[INFO] [stdout]     |
[INFO] [stdout]     = note: attribute `allow` with an empty list has no effect
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src`
[INFO] [stdout]   --> src/frontend/parser/tiger_parser/mod.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn run(src:String)->ParseResult{
[INFO] [stdout]    |            ^^^ help: if this is intentional, prefix it with an underscore: `_src`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Symbol` is never used
[INFO] [stdout]   --> src/frontend/Semantics/mod.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub type Symbol=u32;
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SymbolTable` is never constructed
[INFO] [stdout]   --> src/frontend/Semantics/mod.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct SymbolTable<'a>{
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `get_symbol` are never used
[INFO] [stdout]   --> src/frontend/Semantics/mod.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl<'a> SymbolTable<'a>{
[INFO] [stdout]    | ------------------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 44 |     pub fn new()->Self{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     pub fn get_symbol(&mut self, string:&'a str) ->Symbol{
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]  --> src/frontend/parser/AST.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum List<T>{
[INFO] [stdout]   |          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `EfieldList` is never used
[INFO] [stdout]   --> src/frontend/parser/AST.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub type EfieldList =List<efield>;
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `NameTyList` is never used
[INFO] [stdout]   --> src/frontend/parser/AST.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub type NameTyList=List<namety>;
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Declist` is never used
[INFO] [stdout]   --> src/frontend/parser/AST.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub type Declist =List<decl>;
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Fundeclist` is never used
[INFO] [stdout]   --> src/frontend/parser/AST.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub type Fundeclist =List<fundec>;
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Fieldlist` is never used
[INFO] [stdout]   --> src/frontend/parser/AST.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub type Fieldlist =List<field>;
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Explist` is never used
[INFO] [stdout]   --> src/frontend/parser/AST.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub type Explist =List<exp>;
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `lvalue` is never used
[INFO] [stdout]   --> src/frontend/parser/AST.rs:23:10
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub enum lvalue{
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `lvalue` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `exp` is never used
[INFO] [stdout]   --> src/frontend/parser/AST.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub enum exp{
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `exp` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `decl` is never used
[INFO] [stdout]   --> src/frontend/parser/AST.rs:54:10
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub enum decl{
[INFO] [stdout]    |          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `decl` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `typ` is never used
[INFO] [stdout]   --> src/frontend/parser/AST.rs:63:10
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub enum typ{
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `typ` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `field` is never constructed
[INFO] [stdout]   --> src/frontend/parser/AST.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub struct field{ name:Symbol,typ:Symbol }//name:typ
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `field` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `fundec` is never constructed
[INFO] [stdout]   --> src/frontend/parser/AST.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub struct fundec{
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `fundec` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `namety` is never constructed
[INFO] [stdout]   --> src/frontend/parser/AST.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub struct namety{
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `namety` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `efield` is never constructed
[INFO] [stdout]   --> src/frontend/parser/AST.rs:95:13
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub struct  efield{name:Symbol,expr:exp}
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `efield` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]    --> src/frontend/parser/AST.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub enum Operator {
[INFO] [stdout]     |          -------- variants in this enum
[INFO] [stdout] 102 |     Plus,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 103 |     Minus,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 104 |     Times,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 105 |     Div,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 106 |     Eq,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 107 |     Neq,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 108 |     LT,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 109 |     LE,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 110 |     GT,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 111 |     GE
[INFO] [stdout]     |     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Operator` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TigerParser` is never constructed
[INFO] [stdout]   --> src/frontend/parser/tiger_parser/mod.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct TigerParser;
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ParserErr` is never used
[INFO] [stdout]   --> src/frontend/parser/tiger_parser/mod.rs:59:10
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub enum ParserErr{
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParserErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ParseResult` is never used
[INFO] [stdout]   --> src/frontend/parser/tiger_parser/mod.rs:66:10
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub type ParseResult=Result<exp,ParserErr>;
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/frontend/parser/tiger_parser/mod.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn run(src:String)->ParseResult{
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expect_identifier` is never used
[INFO] [stdout]    --> src/frontend/parser/tiger_parser/token.rs:156:8
[INFO] [stdout]     |
[INFO] [stdout] 156 | pub fn expect_identifier(id:Pair<Rule>)->String{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expect_interger` is never used
[INFO] [stdout]    --> src/frontend/parser/tiger_parser/token.rs:165:8
[INFO] [stdout]     |
[INFO] [stdout] 165 | pub fn expect_interger(int:Pair<Rule>)->u32{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expect_string` is never used
[INFO] [stdout]    --> src/frontend/parser/tiger_parser/token.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 177 | pub fn expect_string(string:Pair<Rule>)->String{
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expect_inner` is never used
[INFO] [stdout]    --> src/frontend/parser/tiger_parser/token.rs:186:8
[INFO] [stdout]     |
[INFO] [stdout] 186 | pub fn expect_inner(inner:Pair<Rule>)->String{
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `transform_ch` is never used
[INFO] [stdout]    --> src/frontend/parser/tiger_parser/token.rs:201:8
[INFO] [stdout]     |
[INFO] [stdout] 201 | pub fn transform_ch(c:Pair<Rule>)->String{
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expecting_compareop` is never used
[INFO] [stdout]    --> src/frontend/parser/tiger_parser/token.rs:230:8
[INFO] [stdout]     |
[INFO] [stdout] 230 | pub fn expecting_compareop(compareop:Pair<Rule>)->Operator{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expecting_plusorminus` is never used
[INFO] [stdout]    --> src/frontend/parser/tiger_parser/token.rs:248:8
[INFO] [stdout]     |
[INFO] [stdout] 248 | pub fn expecting_plusorminus(plus_or_minus:Pair<Rule>) ->Operator{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expecting_timesordiv` is never used
[INFO] [stdout]    --> src/frontend/parser/tiger_parser/token.rs:263:8
[INFO] [stdout]     |
[INFO] [stdout] 263 | pub fn expecting_timesordiv(timesordiv:Pair<Rule>)->Operator{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `MCIR` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `mcir`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 46 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id_name`
[INFO] [stdout]   --> src/frontend/parser/tiger_parser/token.rs:96:13
[INFO] [stdout]    |
[INFO] [stdout] 96 |         let id_name=transform_ch(id);
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_id_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src`
[INFO] [stdout]   --> src/frontend/parser/tiger_parser/mod.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn run(src:String)->ParseResult{
[INFO] [stdout]    |            ^^^ help: if this is intentional, prefix it with an underscore: `_src`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]  --> src/frontend/parser/AST.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum List<T>{
[INFO] [stdout]   |          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `EfieldList` is never used
[INFO] [stdout]   --> src/frontend/parser/AST.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub type EfieldList =List<efield>;
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `NameTyList` is never used
[INFO] [stdout]   --> src/frontend/parser/AST.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub type NameTyList=List<namety>;
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Declist` is never used
[INFO] [stdout]   --> src/frontend/parser/AST.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub type Declist =List<decl>;
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Fundeclist` is never used
[INFO] [stdout]   --> src/frontend/parser/AST.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub type Fundeclist =List<fundec>;
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Fieldlist` is never used
[INFO] [stdout]   --> src/frontend/parser/AST.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub type Fieldlist =List<field>;
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Explist` is never used
[INFO] [stdout]   --> src/frontend/parser/AST.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub type Explist =List<exp>;
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `lvalue` is never used
[INFO] [stdout]   --> src/frontend/parser/AST.rs:23:10
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub enum lvalue{
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `lvalue` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `exp` is never used
[INFO] [stdout]   --> src/frontend/parser/AST.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub enum exp{
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `exp` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `decl` is never used
[INFO] [stdout]   --> src/frontend/parser/AST.rs:54:10
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub enum decl{
[INFO] [stdout]    |          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `decl` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `typ` is never used
[INFO] [stdout]   --> src/frontend/parser/AST.rs:63:10
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub enum typ{
[INFO] [stdout]    |          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `typ` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `field` is never constructed
[INFO] [stdout]   --> src/frontend/parser/AST.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub struct field{ name:Symbol,typ:Symbol }//name:typ
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `field` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `fundec` is never constructed
[INFO] [stdout]   --> src/frontend/parser/AST.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub struct fundec{
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `fundec` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `namety` is never constructed
[INFO] [stdout]   --> src/frontend/parser/AST.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub struct namety{
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `namety` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `efield` is never constructed
[INFO] [stdout]   --> src/frontend/parser/AST.rs:95:13
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub struct  efield{name:Symbol,expr:exp}
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `efield` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Plus`, `Minus`, `Times`, and `Div` are never constructed
[INFO] [stdout]    --> src/frontend/parser/AST.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub enum Operator {
[INFO] [stdout]     |          -------- variants in this enum
[INFO] [stdout] 102 |     Plus,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 103 |     Minus,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 104 |     Times,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 105 |     Div,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Operator` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ParserErr` is never used
[INFO] [stdout]   --> src/frontend/parser/tiger_parser/mod.rs:59:10
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub enum ParserErr{
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParserErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ParseResult` is never used
[INFO] [stdout]   --> src/frontend/parser/tiger_parser/mod.rs:66:10
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub type ParseResult=Result<exp,ParserErr>;
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/frontend/parser/tiger_parser/mod.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn run(src:String)->ParseResult{
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_src` is never used
[INFO] [stdout]   --> src/frontend/parser/tiger_parser/mod.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn parse_src(src:&str,rule:Rule)->Pair<Rule>{
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expecting_plusorminus` is never used
[INFO] [stdout]    --> src/frontend/parser/tiger_parser/token.rs:248:8
[INFO] [stdout]     |
[INFO] [stdout] 248 | pub fn expecting_plusorminus(plus_or_minus:Pair<Rule>) ->Operator{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expecting_timesordiv` is never used
[INFO] [stdout]    --> src/frontend/parser/tiger_parser/token.rs:263:8
[INFO] [stdout]     |
[INFO] [stdout] 263 | pub fn expecting_timesordiv(timesordiv:Pair<Rule>)->Operator{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/frontend/parser/tiger_parser/mod.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         src.read_to_string((&mut src_string));
[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] 35 |         let _ = src.read_to_string((&mut src_string));
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `LE_parsing_test` should have a snake case name
[INFO] [stdout]    --> src/frontend/parser/tiger_parser/token.rs:120:8
[INFO] [stdout]     |
[INFO] [stdout] 120 |     fn LE_parsing_test(){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `le_parsing_test`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 42 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.95s
[INFO] running `Command { std: "docker" "inspect" "37a623e9a0b090443b8b6bed9ad3b63090b1c177f0b7316ac51397fb2e640b2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37a623e9a0b090443b8b6bed9ad3b63090b1c177f0b7316ac51397fb2e640b2e", kill_on_drop: false }`
[INFO] [stdout] 37a623e9a0b090443b8b6bed9ad3b63090b1c177f0b7316ac51397fb2e640b2e