[INFO] updating cached repository https://github.com/GodTamIt/tiger-compiler-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] db3c1f50e45097e90ee029c88c7b80322c08c2fe
[INFO] testing GodTamIt/tiger-compiler-rs against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FGodTamIt%2Ftiger-compiler-rs" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GodTamIt/tiger-compiler-rs on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/GodTamIt/tiger-compiler-rs
[INFO] finished tweaking git repo https://github.com/GodTamIt/tiger-compiler-rs
[INFO] tweaked toml for git repo https://github.com/GodTamIt/tiger-compiler-rs written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/GodTamIt/tiger-compiler-rs already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] cd90afbd0c72ea70211981502d0677f3c4864a84167f059dc94ceb1b703ae0a9
[INFO] running `"docker" "start" "-a" "cd90afbd0c72ea70211981502d0677f3c4864a84167f059dc94ceb1b703ae0a9"`
[INFO] [stderr]    Compiling serde v1.0.35
[INFO] [stderr]    Compiling indextree v1.1.1
[INFO] [stderr]    Compiling serde_derive_internals v0.22.1
[INFO] [stderr]    Compiling env_logger v0.5.6
[INFO] [stderr]    Compiling serde_derive v1.0.35
[INFO] [stderr]    Compiling serde_json v1.0.13
[INFO] [stderr]    Compiling cs4240 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/scanner.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 | /     lazy_static! {
[INFO] [stderr] 50 | |         static ref KEYWORD1_RE: Regex = Regex::new(r"^((array)|(begin)|(boolean)|(break)|(do)|(else)|(end)|(enddo)|(endif)|(false)|(float)|(for)|(func)|(if)|(in)|(int)|(let)|(of)|(return)|(then)|(to)|(true)|(type)|(unit)|(var)|(while))$").unwrap();
[INFO] [stderr] 51 | |         static ref KEYWORD2_RE: Regex = Regex::new(r"^(,|:|;|\(|\)|\[|\]|\{|\}|\.|\+|-|\*|/|=|<|>|<>|<=|>=|&|\||:=)$").unwrap();
[INFO] [stderr] 52 | |         static ref ID_RE: Regex = Regex::new(r"^((_[A-Za-z_0-9]*([0-9A-Za-z])[A-Za-z_0-9]*)|(([A-Za-z])[0-9A-Za-z_]*))$").unwrap();
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |         static ref TOKEN_NAMES: Vec<&'static str> = vec!["floatlit", "intlit", "id", "keyword", "keyword"];
[INFO] [stderr] 58 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/scanner.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 | /     lazy_static! {
[INFO] [stderr] 50 | |         static ref KEYWORD1_RE: Regex = Regex::new(r"^((array)|(begin)|(boolean)|(break)|(do)|(else)|(end)|(enddo)|(endif)|(false)|(float)|(for)|(func)|(if)|(in)|(int)|(let)|(of)|(return)|(then)|(to)|(true)|(type)|(unit)|(var)|(while))$").unwrap();
[INFO] [stderr] 51 | |         static ref KEYWORD2_RE: Regex = Regex::new(r"^(,|:|;|\(|\)|\[|\]|\{|\}|\.|\+|-|\*|/|=|<|>|<>|<=|>=|&|\||:=)$").unwrap();
[INFO] [stderr] 52 | |         static ref ID_RE: Regex = Regex::new(r"^((_[A-Za-z_0-9]*([0-9A-Za-z])[A-Za-z_0-9]*)|(([A-Za-z])[0-9A-Za-z_]*))$").unwrap();
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |         static ref TOKEN_NAMES: Vec<&'static str> = vec!["floatlit", "intlit", "id", "keyword", "keyword"];
[INFO] [stderr] 58 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/scanner.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 | /     lazy_static! {
[INFO] [stderr] 50 | |         static ref KEYWORD1_RE: Regex = Regex::new(r"^((array)|(begin)|(boolean)|(break)|(do)|(else)|(end)|(enddo)|(endif)|(false)|(float)|(for)|(func)|(if)|(in)|(int)|(let)|(of)|(return)|(then)|(to)|(true)|(type)|(unit)|(var)|(while))$").unwrap();
[INFO] [stderr] 51 | |         static ref KEYWORD2_RE: Regex = Regex::new(r"^(,|:|;|\(|\)|\[|\]|\{|\}|\.|\+|-|\*|/|=|<|>|<>|<=|>=|&|\||:=)$").unwrap();
[INFO] [stderr] 52 | |         static ref ID_RE: Regex = Regex::new(r"^((_[A-Za-z_0-9]*([0-9A-Za-z])[A-Za-z_0-9]*)|(([A-Za-z])[0-9A-Za-z_]*))$").unwrap();
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |         static ref TOKEN_NAMES: Vec<&'static str> = vec!["floatlit", "intlit", "id", "keyword", "keyword"];
[INFO] [stderr] 58 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/scanner.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 | /     lazy_static! {
[INFO] [stderr] 50 | |         static ref KEYWORD1_RE: Regex = Regex::new(r"^((array)|(begin)|(boolean)|(break)|(do)|(else)|(end)|(enddo)|(endif)|(false)|(float)|(for)|(func)|(if)|(in)|(int)|(let)|(of)|(return)|(then)|(to)|(true)|(type)|(unit)|(var)|(while))$").unwrap();
[INFO] [stderr] 51 | |         static ref KEYWORD2_RE: Regex = Regex::new(r"^(,|:|;|\(|\)|\[|\]|\{|\}|\.|\+|-|\*|/|=|<|>|<>|<=|>=|&|\||:=)$").unwrap();
[INFO] [stderr] 52 | |         static ref ID_RE: Regex = Regex::new(r"^((_[A-Za-z_0-9]*([0-9A-Za-z])[A-Za-z_0-9]*)|(([A-Za-z])[0-9A-Za-z_]*))$").unwrap();
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |         static ref TOKEN_NAMES: Vec<&'static str> = vec!["floatlit", "intlit", "id", "keyword", "keyword"];
[INFO] [stderr] 58 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/scanner.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 | /     lazy_static! {
[INFO] [stderr] 50 | |         static ref KEYWORD1_RE: Regex = Regex::new(r"^((array)|(begin)|(boolean)|(break)|(do)|(else)|(end)|(enddo)|(endif)|(false)|(float)|(for)|(func)|(if)|(in)|(int)|(let)|(of)|(return)|(then)|(to)|(true)|(type)|(unit)|(var)|(while))$").unwrap();
[INFO] [stderr] 51 | |         static ref KEYWORD2_RE: Regex = Regex::new(r"^(,|:|;|\(|\)|\[|\]|\{|\}|\.|\+|-|\*|/|=|<|>|<>|<=|>=|&|\||:=)$").unwrap();
[INFO] [stderr] 52 | |         static ref ID_RE: Regex = Regex::new(r"^((_[A-Za-z_0-9]*([0-9A-Za-z])[A-Za-z_0-9]*)|(([A-Za-z])[0-9A-Za-z_]*))$").unwrap();
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |         static ref TOKEN_NAMES: Vec<&'static str> = vec!["floatlit", "intlit", "id", "keyword", "keyword"];
[INFO] [stderr] 58 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/scanner.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 | /     lazy_static! {
[INFO] [stderr] 50 | |         static ref KEYWORD1_RE: Regex = Regex::new(r"^((array)|(begin)|(boolean)|(break)|(do)|(else)|(end)|(enddo)|(endif)|(false)|(float)|(for)|(func)|(if)|(in)|(int)|(let)|(of)|(return)|(then)|(to)|(true)|(type)|(unit)|(var)|(while))$").unwrap();
[INFO] [stderr] 51 | |         static ref KEYWORD2_RE: Regex = Regex::new(r"^(,|:|;|\(|\)|\[|\]|\{|\}|\.|\+|-|\*|/|=|<|>|<>|<=|>=|&|\||:=)$").unwrap();
[INFO] [stderr] 52 | |         static ref ID_RE: Regex = Regex::new(r"^((_[A-Za-z_0-9]*([0-9A-Za-z])[A-Za-z_0-9]*)|(([A-Za-z])[0-9A-Za-z_]*))$").unwrap();
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |         static ref TOKEN_NAMES: Vec<&'static str> = vec!["floatlit", "intlit", "id", "keyword", "keyword"];
[INFO] [stderr] 58 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/scanner.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 | /     lazy_static! {
[INFO] [stderr] 50 | |         static ref KEYWORD1_RE: Regex = Regex::new(r"^((array)|(begin)|(boolean)|(break)|(do)|(else)|(end)|(enddo)|(endif)|(false)|(float)|(for)|(func)|(if)|(in)|(int)|(let)|(of)|(return)|(then)|(to)|(true)|(type)|(unit)|(var)|(while))$").unwrap();
[INFO] [stderr] 51 | |         static ref KEYWORD2_RE: Regex = Regex::new(r"^(,|:|;|\(|\)|\[|\]|\{|\}|\.|\+|-|\*|/|=|<|>|<>|<=|>=|&|\||:=)$").unwrap();
[INFO] [stderr] 52 | |         static ref ID_RE: Regex = Regex::new(r"^((_[A-Za-z_0-9]*([0-9A-Za-z])[A-Za-z_0-9]*)|(([A-Za-z])[0-9A-Za-z_]*))$").unwrap();
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |         static ref TOKEN_NAMES: Vec<&'static str> = vec!["floatlit", "intlit", "id", "keyword", "keyword"];
[INFO] [stderr] 58 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ast`
[INFO] [stderr]   --> src/main.rs:98:14
[INFO] [stderr]    |
[INFO] [stderr] 98 |     let (mut ast, mut new_ast) = match parser::parse_input(&grammar, &table, &mut tokens) {
[INFO] [stderr]    |              ^^^ help: consider prefixing with an underscore: `_ast`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `funcdecls_node`
[INFO] [stderr]    --> src/typechecker.rs:297:45
[INFO] [stderr]     |
[INFO] [stderr] 297 | fn build_context_map(vardecls_node: NodeId, funcdecls_node: NodeId, arena: &Arena<Rc<Token>>, atable: &SymbolTable) -> Result<SymbolTable, String> {
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_funcdecls_node`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `child`
[INFO] [stderr]    --> src/typechecker.rs:508:17
[INFO] [stderr]     |
[INFO] [stderr] 508 |             for child in rhs_node.children(arena) {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_child`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `term_child_iter`
[INFO] [stderr]    --> src/typechecker.rs:644:13
[INFO] [stderr]     |
[INFO] [stderr] 644 |     let mut term_child_iter = curr_term_node.children(arena);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_term_child_iter`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `param`
[INFO] [stderr]   --> src/typechecker.rs:59:14
[INFO] [stderr]    |
[INFO] [stderr] 59 |         for (param, param_type) in argmap.iter() {
[INFO] [stderr]    |              ^^^^^ help: consider prefixing with an underscore: `_param`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:98:10
[INFO] [stderr]    |
[INFO] [stderr] 98 |     let (mut ast, mut new_ast) = match parser::parse_input(&grammar, &table, &mut tokens) {
[INFO] [stderr]    |          ----^^^
[INFO] [stderr]    |          |
[INFO] [stderr]    |          help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:98:19
[INFO] [stderr]    |
[INFO] [stderr] 98 |     let (mut ast, mut new_ast) = match parser::parse_input(&grammar, &table, &mut tokens) {
[INFO] [stderr]    |                   ----^^^^^^^
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:109:10
[INFO] [stderr]     |
[INFO] [stderr] 109 |     let (mut arena, mut ast_root) = typechecker::build_ast(&new_ast);
[INFO] [stderr]     |          ----^^^^^
[INFO] [stderr]     |          |
[INFO] [stderr]     |          help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:109:21
[INFO] [stderr]     |
[INFO] [stderr] 109 |     let (mut arena, mut ast_root) = typechecker::build_ast(&new_ast);
[INFO] [stderr]     |                     ----^^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/typechecker.rs:305:13
[INFO] [stderr]     |
[INFO] [stderr] 305 |         let mut ndx = vardecl_node.children(arena).nth(3).expect("Could not extract TYPE");
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/typechecker.rs:644:9
[INFO] [stderr]     |
[INFO] [stderr] 644 |     let mut term_child_iter = curr_term_node.children(arena);
[INFO] [stderr]     |         ----^^^^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pop`
[INFO] [stderr]   --> src/typechecker.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn pop(&mut self, id: &String) -> Option<DynamicType> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `debug_print_ast`
[INFO] [stderr]    --> src/typechecker.rs:779:1
[INFO] [stderr]     |
[INFO] [stderr] 779 | pub fn debug_print_ast(arena: &Arena<Rc<Token>>, node: NodeId) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `debug_print_inner`
[INFO] [stderr]    --> src/typechecker.rs:784:1
[INFO] [stderr]     |
[INFO] [stderr] 784 | pub fn debug_print_inner(arena: &Arena<Rc<Token>>, node: NodeId) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.65s
[INFO] running `"docker" "inspect" "cd90afbd0c72ea70211981502d0677f3c4864a84167f059dc94ceb1b703ae0a9"`
[INFO] running `"docker" "rm" "-f" "cd90afbd0c72ea70211981502d0677f3c4864a84167f059dc94ceb1b703ae0a9"`
[INFO] [stdout] cd90afbd0c72ea70211981502d0677f3c4864a84167f059dc94ceb1b703ae0a9
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 74c5309c9d6065fc1f31ca6cf4b5d08d3aa9777607f8f15014f35bc5d9a1eede
[INFO] running `"docker" "start" "-a" "74c5309c9d6065fc1f31ca6cf4b5d08d3aa9777607f8f15014f35bc5d9a1eede"`
[INFO] [stderr]    Compiling cs4240 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/scanner.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 | /     lazy_static! {
[INFO] [stderr] 50 | |         static ref KEYWORD1_RE: Regex = Regex::new(r"^((array)|(begin)|(boolean)|(break)|(do)|(else)|(end)|(enddo)|(endif)|(false)|(float)|(for)|(func)|(if)|(in)|(int)|(let)|(of)|(return)|(then)|(to)|(true)|(type)|(unit)|(var)|(while))$").unwrap();
[INFO] [stderr] 51 | |         static ref KEYWORD2_RE: Regex = Regex::new(r"^(,|:|;|\(|\)|\[|\]|\{|\}|\.|\+|-|\*|/|=|<|>|<>|<=|>=|&|\||:=)$").unwrap();
[INFO] [stderr] 52 | |         static ref ID_RE: Regex = Regex::new(r"^((_[A-Za-z_0-9]*([0-9A-Za-z])[A-Za-z_0-9]*)|(([A-Za-z])[0-9A-Za-z_]*))$").unwrap();
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |         static ref TOKEN_NAMES: Vec<&'static str> = vec!["floatlit", "intlit", "id", "keyword", "keyword"];
[INFO] [stderr] 58 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/scanner.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 | /     lazy_static! {
[INFO] [stderr] 50 | |         static ref KEYWORD1_RE: Regex = Regex::new(r"^((array)|(begin)|(boolean)|(break)|(do)|(else)|(end)|(enddo)|(endif)|(false)|(float)|(for)|(func)|(if)|(in)|(int)|(let)|(of)|(return)|(then)|(to)|(true)|(type)|(unit)|(var)|(while))$").unwrap();
[INFO] [stderr] 51 | |         static ref KEYWORD2_RE: Regex = Regex::new(r"^(,|:|;|\(|\)|\[|\]|\{|\}|\.|\+|-|\*|/|=|<|>|<>|<=|>=|&|\||:=)$").unwrap();
[INFO] [stderr] 52 | |         static ref ID_RE: Regex = Regex::new(r"^((_[A-Za-z_0-9]*([0-9A-Za-z])[A-Za-z_0-9]*)|(([A-Za-z])[0-9A-Za-z_]*))$").unwrap();
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |         static ref TOKEN_NAMES: Vec<&'static str> = vec!["floatlit", "intlit", "id", "keyword", "keyword"];
[INFO] [stderr] 58 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/scanner.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 | /     lazy_static! {
[INFO] [stderr] 50 | |         static ref KEYWORD1_RE: Regex = Regex::new(r"^((array)|(begin)|(boolean)|(break)|(do)|(else)|(end)|(enddo)|(endif)|(false)|(float)|(for)|(func)|(if)|(in)|(int)|(let)|(of)|(return)|(then)|(to)|(true)|(type)|(unit)|(var)|(while))$").unwrap();
[INFO] [stderr] 51 | |         static ref KEYWORD2_RE: Regex = Regex::new(r"^(,|:|;|\(|\)|\[|\]|\{|\}|\.|\+|-|\*|/|=|<|>|<>|<=|>=|&|\||:=)$").unwrap();
[INFO] [stderr] 52 | |         static ref ID_RE: Regex = Regex::new(r"^((_[A-Za-z_0-9]*([0-9A-Za-z])[A-Za-z_0-9]*)|(([A-Za-z])[0-9A-Za-z_]*))$").unwrap();
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |         static ref TOKEN_NAMES: Vec<&'static str> = vec!["floatlit", "intlit", "id", "keyword", "keyword"];
[INFO] [stderr] 58 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/scanner.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 | /     lazy_static! {
[INFO] [stderr] 50 | |         static ref KEYWORD1_RE: Regex = Regex::new(r"^((array)|(begin)|(boolean)|(break)|(do)|(else)|(end)|(enddo)|(endif)|(false)|(float)|(for)|(func)|(if)|(in)|(int)|(let)|(of)|(return)|(then)|(to)|(true)|(type)|(unit)|(var)|(while))$").unwrap();
[INFO] [stderr] 51 | |         static ref KEYWORD2_RE: Regex = Regex::new(r"^(,|:|;|\(|\)|\[|\]|\{|\}|\.|\+|-|\*|/|=|<|>|<>|<=|>=|&|\||:=)$").unwrap();
[INFO] [stderr] 52 | |         static ref ID_RE: Regex = Regex::new(r"^((_[A-Za-z_0-9]*([0-9A-Za-z])[A-Za-z_0-9]*)|(([A-Za-z])[0-9A-Za-z_]*))$").unwrap();
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |         static ref TOKEN_NAMES: Vec<&'static str> = vec!["floatlit", "intlit", "id", "keyword", "keyword"];
[INFO] [stderr] 58 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/scanner.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 | /     lazy_static! {
[INFO] [stderr] 50 | |         static ref KEYWORD1_RE: Regex = Regex::new(r"^((array)|(begin)|(boolean)|(break)|(do)|(else)|(end)|(enddo)|(endif)|(false)|(float)|(for)|(func)|(if)|(in)|(int)|(let)|(of)|(return)|(then)|(to)|(true)|(type)|(unit)|(var)|(while))$").unwrap();
[INFO] [stderr] 51 | |         static ref KEYWORD2_RE: Regex = Regex::new(r"^(,|:|;|\(|\)|\[|\]|\{|\}|\.|\+|-|\*|/|=|<|>|<>|<=|>=|&|\||:=)$").unwrap();
[INFO] [stderr] 52 | |         static ref ID_RE: Regex = Regex::new(r"^((_[A-Za-z_0-9]*([0-9A-Za-z])[A-Za-z_0-9]*)|(([A-Za-z])[0-9A-Za-z_]*))$").unwrap();
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |         static ref TOKEN_NAMES: Vec<&'static str> = vec!["floatlit", "intlit", "id", "keyword", "keyword"];
[INFO] [stderr] 58 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/scanner.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 | /     lazy_static! {
[INFO] [stderr] 50 | |         static ref KEYWORD1_RE: Regex = Regex::new(r"^((array)|(begin)|(boolean)|(break)|(do)|(else)|(end)|(enddo)|(endif)|(false)|(float)|(for)|(func)|(if)|(in)|(int)|(let)|(of)|(return)|(then)|(to)|(true)|(type)|(unit)|(var)|(while))$").unwrap();
[INFO] [stderr] 51 | |         static ref KEYWORD2_RE: Regex = Regex::new(r"^(,|:|;|\(|\)|\[|\]|\{|\}|\.|\+|-|\*|/|=|<|>|<>|<=|>=|&|\||:=)$").unwrap();
[INFO] [stderr] 52 | |         static ref ID_RE: Regex = Regex::new(r"^((_[A-Za-z_0-9]*([0-9A-Za-z])[A-Za-z_0-9]*)|(([A-Za-z])[0-9A-Za-z_]*))$").unwrap();
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |         static ref TOKEN_NAMES: Vec<&'static str> = vec!["floatlit", "intlit", "id", "keyword", "keyword"];
[INFO] [stderr] 58 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/scanner.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 | /     lazy_static! {
[INFO] [stderr] 50 | |         static ref KEYWORD1_RE: Regex = Regex::new(r"^((array)|(begin)|(boolean)|(break)|(do)|(else)|(end)|(enddo)|(endif)|(false)|(float)|(for)|(func)|(if)|(in)|(int)|(let)|(of)|(return)|(then)|(to)|(true)|(type)|(unit)|(var)|(while))$").unwrap();
[INFO] [stderr] 51 | |         static ref KEYWORD2_RE: Regex = Regex::new(r"^(,|:|;|\(|\)|\[|\]|\{|\}|\.|\+|-|\*|/|=|<|>|<>|<=|>=|&|\||:=)$").unwrap();
[INFO] [stderr] 52 | |         static ref ID_RE: Regex = Regex::new(r"^((_[A-Za-z_0-9]*([0-9A-Za-z])[A-Za-z_0-9]*)|(([A-Za-z])[0-9A-Za-z_]*))$").unwrap();
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |         static ref TOKEN_NAMES: Vec<&'static str> = vec!["floatlit", "intlit", "id", "keyword", "keyword"];
[INFO] [stderr] 58 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ast`
[INFO] [stderr]   --> src/main.rs:98:14
[INFO] [stderr]    |
[INFO] [stderr] 98 |     let (mut ast, mut new_ast) = match parser::parse_input(&grammar, &table, &mut tokens) {
[INFO] [stderr]    |              ^^^ help: consider prefixing with an underscore: `_ast`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `funcdecls_node`
[INFO] [stderr]    --> src/typechecker.rs:297:45
[INFO] [stderr]     |
[INFO] [stderr] 297 | fn build_context_map(vardecls_node: NodeId, funcdecls_node: NodeId, arena: &Arena<Rc<Token>>, atable: &SymbolTable) -> Result<SymbolTable, String> {
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_funcdecls_node`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `child`
[INFO] [stderr]    --> src/typechecker.rs:508:17
[INFO] [stderr]     |
[INFO] [stderr] 508 |             for child in rhs_node.children(arena) {
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_child`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `term_child_iter`
[INFO] [stderr]    --> src/typechecker.rs:644:13
[INFO] [stderr]     |
[INFO] [stderr] 644 |     let mut term_child_iter = curr_term_node.children(arena);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_term_child_iter`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `param`
[INFO] [stderr]   --> src/typechecker.rs:59:14
[INFO] [stderr]    |
[INFO] [stderr] 59 |         for (param, param_type) in argmap.iter() {
[INFO] [stderr]    |              ^^^^^ help: consider prefixing with an underscore: `_param`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:98:10
[INFO] [stderr]    |
[INFO] [stderr] 98 |     let (mut ast, mut new_ast) = match parser::parse_input(&grammar, &table, &mut tokens) {
[INFO] [stderr]    |          ----^^^
[INFO] [stderr]    |          |
[INFO] [stderr]    |          help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:98:19
[INFO] [stderr]    |
[INFO] [stderr] 98 |     let (mut ast, mut new_ast) = match parser::parse_input(&grammar, &table, &mut tokens) {
[INFO] [stderr]    |                   ----^^^^^^^
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:109:10
[INFO] [stderr]     |
[INFO] [stderr] 109 |     let (mut arena, mut ast_root) = typechecker::build_ast(&new_ast);
[INFO] [stderr]     |          ----^^^^^
[INFO] [stderr]     |          |
[INFO] [stderr]     |          help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:109:21
[INFO] [stderr]     |
[INFO] [stderr] 109 |     let (mut arena, mut ast_root) = typechecker::build_ast(&new_ast);
[INFO] [stderr]     |                     ----^^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/typechecker.rs:305:13
[INFO] [stderr]     |
[INFO] [stderr] 305 |         let mut ndx = vardecl_node.children(arena).nth(3).expect("Could not extract TYPE");
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/typechecker.rs:644:9
[INFO] [stderr]     |
[INFO] [stderr] 644 |     let mut term_child_iter = curr_term_node.children(arena);
[INFO] [stderr]     |         ----^^^^^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pop`
[INFO] [stderr]   --> src/typechecker.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn pop(&mut self, id: &String) -> Option<DynamicType> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `debug_print_ast`
[INFO] [stderr]    --> src/typechecker.rs:779:1
[INFO] [stderr]     |
[INFO] [stderr] 779 | pub fn debug_print_ast(arena: &Arena<Rc<Token>>, node: NodeId) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `debug_print_inner`
[INFO] [stderr]    --> src/typechecker.rs:784:1
[INFO] [stderr]     |
[INFO] [stderr] 784 | pub fn debug_print_inner(arena: &Arena<Rc<Token>>, node: NodeId) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `"docker" "inspect" "74c5309c9d6065fc1f31ca6cf4b5d08d3aa9777607f8f15014f35bc5d9a1eede"`
[INFO] running `"docker" "rm" "-f" "74c5309c9d6065fc1f31ca6cf4b5d08d3aa9777607f8f15014f35bc5d9a1eede"`
[INFO] [stdout] 74c5309c9d6065fc1f31ca6cf4b5d08d3aa9777607f8f15014f35bc5d9a1eede
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 503b0a801d8b00a02c12a05b166bbb079f7d020896581bdad01dfafcc7e76bb3
[INFO] running `"docker" "start" "-a" "503b0a801d8b00a02c12a05b166bbb079f7d020896581bdad01dfafcc7e76bb3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cs4240-cc0746bf921de098
[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" "503b0a801d8b00a02c12a05b166bbb079f7d020896581bdad01dfafcc7e76bb3"`
[INFO] running `"docker" "rm" "-f" "503b0a801d8b00a02c12a05b166bbb079f7d020896581bdad01dfafcc7e76bb3"`
[INFO] [stdout] 503b0a801d8b00a02c12a05b166bbb079f7d020896581bdad01dfafcc7e76bb3