[INFO] updating cached repository LouisJackman/sylan
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/LouisJackman/sylan
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/LouisJackman/sylan" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/LouisJackman/sylan"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/LouisJackman/sylan'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/LouisJackman/sylan" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/LouisJackman/sylan"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/LouisJackman/sylan'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bec6b002f6e90e06a93046acd75ab371a8c97a74
[INFO] sha for GitHub repo LouisJackman/sylan: bec6b002f6e90e06a93046acd75ab371a8c97a74
[INFO] validating manifest of LouisJackman/sylan on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of LouisJackman/sylan on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing LouisJackman/sylan
[INFO] finished frobbing LouisJackman/sylan
[INFO] frobbed toml for LouisJackman/sylan written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/LouisJackman/sylan/Cargo.toml
[INFO] started frobbing LouisJackman/sylan
[INFO] finished frobbing LouisJackman/sylan
[INFO] frobbed toml for LouisJackman/sylan written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/LouisJackman/sylan/Cargo.toml
[INFO] crate LouisJackman/sylan already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking LouisJackman/sylan against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-7/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/LouisJackman/sylan:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 07373357fa456917f5f952829f0f3a8f5550354dbe64a13a7180370ab480d3ec
[INFO] running `"docker" "start" "-a" "07373357fa456917f5f952829f0f3a8f5550354dbe64a13a7180370ab480d3ec"`
[INFO] [stderr]     Checking sylan v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lexing/lexer.rs:48:14
[INFO] [stderr]    |
[INFO] [stderr] 48 |     Task(Box<Any + Send + 'static>),
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Any + Send + 'static`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `LexedToken`
[INFO] [stderr]   --> src/parsing/mod.rs:54:27
[INFO] [stderr]    |
[INFO] [stderr] 54 | use lexing::lexer::{self, LexedToken};
[INFO] [stderr]    |                           ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lexing/lexer.rs:48:14
[INFO] [stderr]    |
[INFO] [stderr] 48 |     Task(Box<Any + Send + 'static>),
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Any + Send + 'static`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `LexedToken`
[INFO] [stderr]   --> src/parsing/mod.rs:54:27
[INFO] [stderr]    |
[INFO] [stderr] 54 | use lexing::lexer::{self, LexedToken};
[INFO] [stderr]    |                           ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `failing_lexer_1`
[INFO] [stderr]     --> src/lexing/lexer.rs:1208:17
[INFO] [stderr]      |
[INFO] [stderr] 1208 |         let mut failing_lexer_1 = test_lexer("10.23");
[INFO] [stderr]      |                 ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_failing_lexer_1`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/lexing/lexer.rs:1208:13
[INFO] [stderr]      |
[INFO] [stderr] 1208 |         let mut failing_lexer_1 = test_lexer("10.23");
[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: variant is never constructed: `Unexpected`
[INFO] [stderr]   --> src/lexing/lexer.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     Unexpected(char),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `confirmed_identifier`
[INFO] [stderr]   --> src/lexing/lexer.rs:84:1
[INFO] [stderr]    |
[INFO] [stderr] 84 | fn confirmed_identifier(word: String) -> Token {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `unexpected`
[INFO] [stderr]    --> src/lexing/lexer.rs:143:5
[INFO] [stderr]     |
[INFO] [stderr] 143 |     fn unexpected<T>(&self, unexpected: char) -> Result<T, Error> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Extends`
[INFO] [stderr]   --> src/lexing/tokens.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     Extends,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `It`
[INFO] [stderr]   --> src/lexing/tokens.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     It,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `TypeConstraint`
[INFO] [stderr]   --> src/lexing/tokens.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     TypeConstraint,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_package_modifier_set`
[INFO] [stderr]   --> src/parsing/modifier_sets.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn new_package_modifier_set() -> HashSet<Token> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_interface_modifier_set`
[INFO] [stderr]   --> src/parsing/modifier_sets.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn new_interface_modifier_set() -> HashSet<Token> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_class_and_enum_modifier_set`
[INFO] [stderr]   --> src/parsing/modifier_sets.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub fn new_class_and_enum_modifier_set() -> HashSet<Token> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_function_modifier_set`
[INFO] [stderr]   --> src/parsing/modifier_sets.rs:37:1
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn new_function_modifier_set() -> HashSet<Token> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_method_modifier_set`
[INFO] [stderr]   --> src/parsing/modifier_sets.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub fn new_method_modifier_set() -> HashSet<Token> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_var_modifier_set`
[INFO] [stderr]   --> src/parsing/modifier_sets.rs:54:1
[INFO] [stderr]    |
[INFO] [stderr] 54 | pub fn new_var_modifier_set() -> HashSet<Token> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_constructor_modifier_set`
[INFO] [stderr]   --> src/parsing/modifier_sets.rs:62:1
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub fn new_constructor_modifier_set() -> HashSet<Token> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_class_extension_modifier_set`
[INFO] [stderr]   --> src/parsing/modifier_sets.rs:68:1
[INFO] [stderr]    |
[INFO] [stderr] 68 | pub fn new_class_extension_modifier_set() -> HashSet<Token> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SyDoc`
[INFO] [stderr]   --> src/parsing/nodes.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     SyDoc(SyDoc),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ContextualIgnoral`
[INFO] [stderr]   --> src/parsing/nodes.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     ContextualIgnoral(ContextualIgnoral),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Alias`
[INFO] [stderr]   --> src/parsing/nodes.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     Alias(Alias),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Identifier`
[INFO] [stderr]   --> src/parsing/nodes.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     Identifier(Identifier),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BinaryOperator`
[INFO] [stderr]   --> src/parsing/nodes.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     BinaryOperator(BinaryOperator, Box<Expression>, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Using`
[INFO] [stderr]   --> src/parsing/nodes.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     Using(Using),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `IfLet`
[INFO] [stderr]   --> src/parsing/nodes.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     IfLet(IfLet),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Continue`
[INFO] [stderr]   --> src/parsing/nodes.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     Continue(Continue),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Call`
[INFO] [stderr]   --> src/parsing/nodes.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     Call(Call),
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Lookup`
[INFO] [stderr]   --> src/parsing/nodes.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     Lookup(Lookup),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `While`
[INFO] [stderr]   --> src/parsing/nodes.rs:66:5
[INFO] [stderr]    |
[INFO] [stderr] 66 |     While(Throw),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `WhileLet`
[INFO] [stderr]   --> src/parsing/nodes.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     WhileLet(WhileLet),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Node`
[INFO] [stderr]   --> src/parsing/nodes.rs:72:1
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub enum Node {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Imported`
[INFO] [stderr]   --> src/parsing/nodes.rs:97:5
[INFO] [stderr]    |
[INFO] [stderr] 97 |     Imported(Package),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Internal`
[INFO] [stderr]    --> src/parsing/nodes.rs:123:5
[INFO] [stderr]     |
[INFO] [stderr] 123 |     Internal,
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Private`
[INFO] [stderr]    --> src/parsing/nodes.rs:124:5
[INFO] [stderr]     |
[INFO] [stderr] 124 |     Private,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Binding`
[INFO] [stderr]    --> src/parsing/nodes.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     Binding(Binding),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Type`
[INFO] [stderr]    --> src/parsing/nodes.rs:130:5
[INFO] [stderr]     |
[INFO] [stderr] 130 |     Type(Type),
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Package`
[INFO] [stderr]    --> src/parsing/nodes.rs:131:5
[INFO] [stderr]     |
[INFO] [stderr] 131 |     Package(Package),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Class`
[INFO] [stderr]    --> src/parsing/nodes.rs:160:5
[INFO] [stderr]     |
[INFO] [stderr] 160 |     Class(Class),
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Interface`
[INFO] [stderr]    --> src/parsing/nodes.rs:161:5
[INFO] [stderr]     |
[INFO] [stderr] 161 |     Interface(Interface),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `ValueArgument`
[INFO] [stderr]    --> src/parsing/nodes.rs:237:1
[INFO] [stderr]     |
[INFO] [stderr] 237 | type ValueArgument = Argument<Expression>;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `TypeArguments`
[INFO] [stderr]    --> src/parsing/nodes.rs:243:1
[INFO] [stderr]     |
[INFO] [stderr] 243 | type TypeArguments = Argument<Type>;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Normal`
[INFO] [stderr]    --> src/parsing/nodes.rs:398:5
[INFO] [stderr]     |
[INFO] [stderr] 398 |     Normal(Argument<Expression>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Entry`
[INFO] [stderr]    --> src/parsing/nodes.rs:399:5
[INFO] [stderr]     |
[INFO] [stderr] 399 |     Entry(Box<Expression>, Box<Expression>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Lexer`
[INFO] [stderr]   --> src/parsing/mod.rs:86:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     Lexer(lexer::Error),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `expect_and_read`
[INFO] [stderr]    --> src/parsing/mod.rs:146:5
[INFO] [stderr]     |
[INFO] [stderr] 146 |     fn expect_and_read(&mut self, expected: Token) -> Result<Token> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_class_body`
[INFO] [stderr]    --> src/parsing/mod.rs:234:5
[INFO] [stderr]     |
[INFO] [stderr] 234 |     fn parse_class_body(&mut self) -> Result<HashSet<Method>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_type_argument_list`
[INFO] [stderr]    --> src/parsing/mod.rs:415:5
[INFO] [stderr]     |
[INFO] [stderr] 415 |     fn parse_type_argument_list(&mut self) -> Result<()> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_binary_operator`
[INFO] [stderr]    --> src/parsing/mod.rs:419:5
[INFO] [stderr]     |
[INFO] [stderr] 419 |     fn parse_binary_operator(&mut self) -> Result<()> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_interface_body`
[INFO] [stderr]    --> src/parsing/mod.rs:431:5
[INFO] [stderr]     |
[INFO] [stderr] 431 |     fn parse_interface_body(&mut self) -> Result<HashSet<Method>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `at_start`
[INFO] [stderr]   --> src/source/in_memory.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn at_start(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `character_position`
[INFO] [stderr]   --> src/source/mod.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     fn character_position(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Unexpected`
[INFO] [stderr]   --> src/lexing/lexer.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     Unexpected(char),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `confirmed_identifier`
[INFO] [stderr]   --> src/lexing/lexer.rs:84:1
[INFO] [stderr]    |
[INFO] [stderr] 84 | fn confirmed_identifier(word: String) -> Token {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `unexpected`
[INFO] [stderr]    --> src/lexing/lexer.rs:143:5
[INFO] [stderr]     |
[INFO] [stderr] 143 |     fn unexpected<T>(&self, unexpected: char) -> Result<T, Error> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Extends`
[INFO] [stderr]   --> src/lexing/tokens.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     Extends,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `It`
[INFO] [stderr]   --> src/lexing/tokens.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     It,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `TypeConstraint`
[INFO] [stderr]   --> src/lexing/tokens.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     TypeConstraint,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_package_modifier_set`
[INFO] [stderr]   --> src/parsing/modifier_sets.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn new_package_modifier_set() -> HashSet<Token> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_interface_modifier_set`
[INFO] [stderr]   --> src/parsing/modifier_sets.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn new_interface_modifier_set() -> HashSet<Token> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_class_and_enum_modifier_set`
[INFO] [stderr]   --> src/parsing/modifier_sets.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub fn new_class_and_enum_modifier_set() -> HashSet<Token> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_function_modifier_set`
[INFO] [stderr]   --> src/parsing/modifier_sets.rs:37:1
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn new_function_modifier_set() -> HashSet<Token> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_method_modifier_set`
[INFO] [stderr]   --> src/parsing/modifier_sets.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub fn new_method_modifier_set() -> HashSet<Token> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_var_modifier_set`
[INFO] [stderr]   --> src/parsing/modifier_sets.rs:54:1
[INFO] [stderr]    |
[INFO] [stderr] 54 | pub fn new_var_modifier_set() -> HashSet<Token> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_constructor_modifier_set`
[INFO] [stderr]   --> src/parsing/modifier_sets.rs:62:1
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub fn new_constructor_modifier_set() -> HashSet<Token> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_class_extension_modifier_set`
[INFO] [stderr]   --> src/parsing/modifier_sets.rs:68:1
[INFO] [stderr]    |
[INFO] [stderr] 68 | pub fn new_class_extension_modifier_set() -> HashSet<Token> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SyDoc`
[INFO] [stderr]   --> src/parsing/nodes.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     SyDoc(SyDoc),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ContextualIgnoral`
[INFO] [stderr]   --> src/parsing/nodes.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     ContextualIgnoral(ContextualIgnoral),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Alias`
[INFO] [stderr]   --> src/parsing/nodes.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     Alias(Alias),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Identifier`
[INFO] [stderr]   --> src/parsing/nodes.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     Identifier(Identifier),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BinaryOperator`
[INFO] [stderr]   --> src/parsing/nodes.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     BinaryOperator(BinaryOperator, Box<Expression>, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Using`
[INFO] [stderr]   --> src/parsing/nodes.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     Using(Using),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `IfLet`
[INFO] [stderr]   --> src/parsing/nodes.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     IfLet(IfLet),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Continue`
[INFO] [stderr]   --> src/parsing/nodes.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     Continue(Continue),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Call`
[INFO] [stderr]   --> src/parsing/nodes.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     Call(Call),
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Lookup`
[INFO] [stderr]   --> src/parsing/nodes.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     Lookup(Lookup),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `While`
[INFO] [stderr]   --> src/parsing/nodes.rs:66:5
[INFO] [stderr]    |
[INFO] [stderr] 66 |     While(Throw),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `WhileLet`
[INFO] [stderr]   --> src/parsing/nodes.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     WhileLet(WhileLet),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Node`
[INFO] [stderr]   --> src/parsing/nodes.rs:72:1
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub enum Node {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Imported`
[INFO] [stderr]   --> src/parsing/nodes.rs:97:5
[INFO] [stderr]    |
[INFO] [stderr] 97 |     Imported(Package),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Internal`
[INFO] [stderr]    --> src/parsing/nodes.rs:123:5
[INFO] [stderr]     |
[INFO] [stderr] 123 |     Internal,
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Private`
[INFO] [stderr]    --> src/parsing/nodes.rs:124:5
[INFO] [stderr]     |
[INFO] [stderr] 124 |     Private,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Binding`
[INFO] [stderr]    --> src/parsing/nodes.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     Binding(Binding),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Type`
[INFO] [stderr]    --> src/parsing/nodes.rs:130:5
[INFO] [stderr]     |
[INFO] [stderr] 130 |     Type(Type),
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Package`
[INFO] [stderr]    --> src/parsing/nodes.rs:131:5
[INFO] [stderr]     |
[INFO] [stderr] 131 |     Package(Package),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Class`
[INFO] [stderr]    --> src/parsing/nodes.rs:160:5
[INFO] [stderr]     |
[INFO] [stderr] 160 |     Class(Class),
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Interface`
[INFO] [stderr]    --> src/parsing/nodes.rs:161:5
[INFO] [stderr]     |
[INFO] [stderr] 161 |     Interface(Interface),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `ValueArgument`
[INFO] [stderr]    --> src/parsing/nodes.rs:237:1
[INFO] [stderr]     |
[INFO] [stderr] 237 | type ValueArgument = Argument<Expression>;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `TypeArguments`
[INFO] [stderr]    --> src/parsing/nodes.rs:243:1
[INFO] [stderr]     |
[INFO] [stderr] 243 | type TypeArguments = Argument<Type>;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Normal`
[INFO] [stderr]    --> src/parsing/nodes.rs:398:5
[INFO] [stderr]     |
[INFO] [stderr] 398 |     Normal(Argument<Expression>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Entry`
[INFO] [stderr]    --> src/parsing/nodes.rs:399:5
[INFO] [stderr]     |
[INFO] [stderr] 399 |     Entry(Box<Expression>, Box<Expression>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Lexer`
[INFO] [stderr]   --> src/parsing/mod.rs:86:5
[INFO] [stderr]    |
[INFO] [stderr] 86 |     Lexer(lexer::Error),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `expect_and_read`
[INFO] [stderr]    --> src/parsing/mod.rs:146:5
[INFO] [stderr]     |
[INFO] [stderr] 146 |     fn expect_and_read(&mut self, expected: Token) -> Result<Token> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_class_body`
[INFO] [stderr]    --> src/parsing/mod.rs:234:5
[INFO] [stderr]     |
[INFO] [stderr] 234 |     fn parse_class_body(&mut self) -> Result<HashSet<Method>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_type_argument_list`
[INFO] [stderr]    --> src/parsing/mod.rs:415:5
[INFO] [stderr]     |
[INFO] [stderr] 415 |     fn parse_type_argument_list(&mut self) -> Result<()> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_binary_operator`
[INFO] [stderr]    --> src/parsing/mod.rs:419:5
[INFO] [stderr]     |
[INFO] [stderr] 419 |     fn parse_binary_operator(&mut self) -> Result<()> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_interface_body`
[INFO] [stderr]    --> src/parsing/mod.rs:431:5
[INFO] [stderr]     |
[INFO] [stderr] 431 |     fn parse_interface_body(&mut self) -> Result<HashSet<Method>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `at_start`
[INFO] [stderr]   --> src/source/in_memory.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn at_start(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.87s
[INFO] running `"docker" "inspect" "07373357fa456917f5f952829f0f3a8f5550354dbe64a13a7180370ab480d3ec"`
[INFO] running `"docker" "rm" "-f" "07373357fa456917f5f952829f0f3a8f5550354dbe64a13a7180370ab480d3ec"`
[INFO] [stdout] 07373357fa456917f5f952829f0f3a8f5550354dbe64a13a7180370ab480d3ec