[INFO] cloning repository https://github.com/kenaniah/rust-ruby
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kenaniah/rust-ruby" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkenaniah%2Frust-ruby", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkenaniah%2Frust-ruby'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dc646aa03f5f4558f51085f30dd6351d31845e86
[INFO] checking kenaniah/rust-ruby against master#8f359beca4e58bc3ae795a666301a8f47023044c for pr-121557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkenaniah%2Frust-ruby" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kenaniah/rust-ruby on toolchain 8f359beca4e58bc3ae795a666301a8f47023044c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f359beca4e58bc3ae795a666301a8f47023044c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kenaniah/rust-ruby
[INFO] finished tweaking git repo https://github.com/kenaniah/rust-ruby
[INFO] tweaked toml for git repo https://github.com/kenaniah/rust-ruby written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kenaniah/rust-ruby 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" "+8f359beca4e58bc3ae795a666301a8f47023044c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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 kenaniah/rust-ruby against try#80d5fe37e16a0befb4128414cb6a11d544788c0a for pr-121557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkenaniah%2Frust-ruby" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kenaniah/rust-ruby on toolchain 80d5fe37e16a0befb4128414cb6a11d544788c0a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80d5fe37e16a0befb4128414cb6a11d544788c0a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kenaniah/rust-ruby
[INFO] finished tweaking git repo https://github.com/kenaniah/rust-ruby
[INFO] tweaked toml for git repo https://github.com/kenaniah/rust-ruby written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kenaniah/rust-ruby 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" "+80d5fe37e16a0befb4128414cb6a11d544788c0a" "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 rustyline v5.0.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+80d5fe37e16a0befb4128414cb6a11d544788c0a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e8d428985d06d1625e4b17fcc7f40c633b85e0bbdcdf08d2878e3571a43c4ec
[INFO] running `Command { std: "docker" "start" "-a" "1e8d428985d06d1625e4b17fcc7f40c633b85e0bbdcdf08d2878e3571a43c4ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e8d428985d06d1625e4b17fcc7f40c633b85e0bbdcdf08d2878e3571a43c4ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e8d428985d06d1625e4b17fcc7f40c633b85e0bbdcdf08d2878e3571a43c4ec", kill_on_drop: false }`
[INFO] [stdout] 1e8d428985d06d1625e4b17fcc7f40c633b85e0bbdcdf08d2878e3571a43c4ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+80d5fe37e16a0befb4128414cb6a11d544788c0a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2eefffda493504bd9747a6c0faac4ce4e915008181263d479571d28122d5d01
[INFO] running `Command { std: "docker" "start" "-a" "c2eefffda493504bd9747a6c0faac4ce4e915008181263d479571d28122d5d01", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling ruby-parser v0.1.0 (/opt/rustwide/workdir/ruby-parser)
[INFO] [stderr]    Compiling ruby-proc-macros v0.1.0 (/opt/rustwide/workdir/ruby-proc-macros)
[INFO] [stderr]     Checking ruby-core v0.1.0 (/opt/rustwide/workdir/ruby-core)
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stdout] warning: fields `c`, `gc_next`, `tt`, `color`, and `flags` are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/array.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / define_object_struct! {
[INFO] [stdout] 9  | |     #[maps_to(mruby: RArray)]
[INFO] [stdout] 10 | |     RArray {
[INFO] [stdout]    | |     ------ fields in this struct
[INFO] [stdout] 11 | |       //   union {
[INFO] [stdout] ...  |
[INFO] [stdout] 22 | |     }
[INFO] [stdout] 23 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/class.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / define_object_struct! {
[INFO] [stdout] 4  | |     #[maps_to(mruby: RClass)]
[INFO] [stdout] 5  | |     RClass {
[INFO] [stdout]    | |     ------ fields in this struct
[INFO] [stdout] 6  | |         instance_variables: &'a VariableTable,
[INFO] [stdout]    | |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 7  | |         //struct kh_mt *mt;
[INFO] [stdout] 8  | |         superclass: &'a Self
[INFO] [stdout]    | |         ^^^^^^^^^^
[INFO] [stdout] 9  | |     }
[INFO] [stdout] 10 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> ruby-core/src/compiler.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct ParserState<'a> {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 9  |     /// Ruby's current state (`mrb_state *mrb`)
[INFO] [stdout] 10 |     rb: &'a Ruby,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 11 |     /// Ruby's memory pool (`struct mrb_pool *pool`)
[INFO] [stdout] 12 |     ruby_pool: &'a MemoryPool<'a>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 13 |     /// (`mrb_ast_node *cells`)
[INFO] [stdout] 14 |     cells: &'a ASTNode<'a>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 15 |     // const char *s, *send;
[INFO] [stdout] 16 |     s: u8,
[INFO] [stdout]    |     ^
[INFO] [stdout] 17 |     send: u8,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     file: &'a File,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 21 |     /// mrbc_context *cxt;
[INFO] [stdout] 22 |     context: &'a CompileContext<'a>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 23 |     /// mrb_sym filename_sym;
[INFO] [stdout] 24 |     filename_sym: Symbol,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 25 |     /// uint16_t lineno;
[INFO] [stdout] 26 |     line_no: u16,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 27 |     /// int column;
[INFO] [stdout] 28 |     column: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 29 |     /// enum mrb_lex_state_enum lstate;
[INFO] [stdout] 30 |     lex_state: LexState,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 31 |     /// mrb_ast_node *lex_strterm; /* (type nest_level beg . end) */
[INFO] [stdout] 32 |     lex_strterm: &'a ASTNode<'a>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 33 |     /// unsigned int cond_stack;
[INFO] [stdout] 34 |     cond_stack: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 35 |     /// unsigned int cmdarg_stack;
[INFO] [stdout] 36 |     cmdarg_stack: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 37 |     /// int paren_nest;
[INFO] [stdout] 38 |     paren_nest: isize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 39 |     /// int lpar_beg;
[INFO] [stdout] 40 |     lpar_beg: isize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 41 |     /// int in_def;
[INFO] [stdout] 42 |     in_def: isize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 43 |     /// int in_single;
[INFO] [stdout] 44 |     in_single: isize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 45 |     /// mrb_bool cmd_start:1;
[INFO] [stdout] 46 |     cmd_start: bool,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 47 |     /// mrb_ast_node *locals;
[INFO] [stdout] 48 |     locals: &'a ASTNode<'a>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 49 |     /// mrb_ast_node *pb;
[INFO] [stdout] 50 |     pb: &'a ASTNode<'a>,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 51 |     /// char *tokbuf;
[INFO] [stdout] 52 |     tokbuf: &'a str,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 53 |     /// char buf[MRB_PARSER_TOKBUF_SIZE];
[INFO] [stdout] 54 |     buf: [char; 256],
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 55 |     /// int tidx;
[INFO] [stdout] 56 |     tidx: usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 57 |     /// int tsiz;
[INFO] [stdout] 58 |     tsiz: usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     all_heredocs: &'a ASTNode<'a>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 62 |     // mrb_ast_node *heredocs_from_nextline;
[INFO] [stdout] 63 |     heredocs_from_nextline: &'a ASTNode<'a>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 64 |     // mrb_ast_node *parsing_heredoc;
[INFO] [stdout] 65 |     parsing_heredoc: &'a ASTNode<'a>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 66 |     // mrb_ast_node *lex_strterm_before_heredoc;
[INFO] [stdout] 67 |     lex_strterm_before_heredoc: &'a ASTNode<'a>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     ylval: (),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     nerr: isize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 74 |     // size_t nwarn;
[INFO] [stdout] 75 |     nwarn: isize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 76 |     // mrb_ast_node *tree;
[INFO] [stdout] 77 |     tree: &'a ASTNode<'a>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 80 |     no_optimize: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 81 |     // mrb_bool on_eval:1;
[INFO] [stdout] 82 |     on_eval: bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 83 |     // mrb_bool capture_errors:1;
[INFO] [stdout] 84 |     capture_errors: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 85 |     // struct mrb_parser_message error_buffer[10];
[INFO] [stdout] 86 |     error_buffer: [ParserMessage; 10],
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 87 |     // struct mrb_parser_message warn_buffer[10];
[INFO] [stdout] 88 |     warn_buffer: [ParserMessage; 10],
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 91 |     filename_table: Vec<Symbol>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 92 |     current_filename_index: isize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95 |     jmp: &'a JumpBuffer,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `prev`, `next`, `line_no`, and `filename_idx` are never read
[INFO] [stdout]    --> ruby-core/src/compiler.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub struct ASTNode<'a> {
[INFO] [stdout]     |            ------- fields in this struct
[INFO] [stdout] 101 |     prev: &'a Self,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 102 |     next: &'a Self,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 103 |     line_no: u16,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 104 |     filename_idx: u16,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]    --> ruby-core/src/compiler.rs:111:5
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub struct CompileContext<'a> {
[INFO] [stdout]     |            -------------- fields in this struct
[INFO] [stdout] 110 |     // mrb_sym *syms;
[INFO] [stdout] 111 |     symbols: &'a Symbol,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 112 |     // int slen;
[INFO] [stdout] 113 |     slen: usize,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 114 |     // char *filename;
[INFO] [stdout] 115 |     filename: &'a usize,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 116 |     // uint16_t lineno;
[INFO] [stdout] 117 |     line_no: u16,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 118 |     // int (*partial_hook)(struct mrb_parser_state*);
[INFO] [stdout] 119 |     partial_hook: &'a fn(&'a ParserState) -> usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 120 |     // void *partial_data;
[INFO] [stdout] 121 |     partial_data: &'a u8,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 122 |     // struct RClass *target_class;
[INFO] [stdout] 123 |     target_class: &'a RClass<'a>,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 124 |     // mrb_bool capture_errors:1;
[INFO] [stdout] 125 |     capture_errors: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 126 |     // mrb_bool dump_result:1;
[INFO] [stdout] 127 |     dump_result: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 128 |     // mrb_bool no_exec:1;
[INFO] [stdout] 129 |     no_exec: bool,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 130 |     // mrb_bool keep_lv:1;
[INFO] [stdout] 131 |     keep_lv: bool,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 132 |     // mrb_bool no_optimize:1;
[INFO] [stdout] 133 |     no_optimize: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 134 |     // mrb_bool on_eval:1;
[INFO] [stdout] 135 |     on_eval: bool,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 136 |     // size_t parser_nerr;
[INFO] [stdout] 137 |     parser_err_no: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `line_no`, `column`, and `message` are never read
[INFO] [stdout]    --> ruby-core/src/compiler.rs:159:5
[INFO] [stdout]     |
[INFO] [stdout] 158 | pub struct ParserMessage {
[INFO] [stdout]     |            ------------- fields in this struct
[INFO] [stdout] 159 |     line_no: u16,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 160 |     column: usize,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 161 |     message: String,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ParserHeredocInfo` is never constructed
[INFO] [stdout]    --> ruby-core/src/compiler.rs:165:12
[INFO] [stdout]     |
[INFO] [stdout] 165 | pub struct ParserHeredocInfo<'a> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `c`, `gc_next`, `tt`, `color`, `flags`, and `instance_variables` are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/error.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / define_object_struct! {
[INFO] [stdout] 4  | |     #[maps_to(mruby: RException)]
[INFO] [stdout] 5  | |     RException {
[INFO] [stdout]    | |     ---------- fields in this struct
[INFO] [stdout] 6  | |         instance_variables: &'a VariableTable
[INFO] [stdout]    | |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 7  | |     }
[INFO] [stdout] 8  | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `c`, `gc_next`, `tt`, `color`, and `flags` are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/array.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / define_object_struct! {
[INFO] [stdout] 9  | |     #[maps_to(mruby: RArray)]
[INFO] [stdout] 10 | |     RArray {
[INFO] [stdout]    | |     ------ fields in this struct
[INFO] [stdout] 11 | |       //   union {
[INFO] [stdout] ...  |
[INFO] [stdout] 22 | |     }
[INFO] [stdout] 23 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `c`, `gc_next`, `tt`, `color`, `flags`, and `proc` are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/error.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / define_object_struct! {
[INFO] [stdout] 11 | |     #[maps_to(mruby: RBreak)]
[INFO] [stdout] 12 | |     RBreak {
[INFO] [stdout]    | |     ------ fields in this struct
[INFO] [stdout] 13 | |         proc: &'a RProc<'a>
[INFO] [stdout]    | |         ^^^^
[INFO] [stdout] 14 | |         //union mrb_value_union value;
[INFO] [stdout] 15 | |     }
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/class.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / define_object_struct! {
[INFO] [stdout] 4  | |     #[maps_to(mruby: RClass)]
[INFO] [stdout] 5  | |     RClass {
[INFO] [stdout]    | |     ------ fields in this struct
[INFO] [stdout] 6  | |         instance_variables: &'a VariableTable,
[INFO] [stdout]    | |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 7  | |         //struct kh_mt *mt;
[INFO] [stdout] 8  | |         superclass: &'a Self
[INFO] [stdout]    | |         ^^^^^^^^^^
[INFO] [stdout] 9  | |     }
[INFO] [stdout] 10 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> ruby-core/src/compiler.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct ParserState<'a> {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 9  |     /// Ruby's current state (`mrb_state *mrb`)
[INFO] [stdout] 10 |     rb: &'a Ruby,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 11 |     /// Ruby's memory pool (`struct mrb_pool *pool`)
[INFO] [stdout] 12 |     ruby_pool: &'a MemoryPool<'a>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 13 |     /// (`mrb_ast_node *cells`)
[INFO] [stdout] 14 |     cells: &'a ASTNode<'a>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 15 |     // const char *s, *send;
[INFO] [stdout] 16 |     s: u8,
[INFO] [stdout]    |     ^
[INFO] [stdout] 17 |     send: u8,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     file: &'a File,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 21 |     /// mrbc_context *cxt;
[INFO] [stdout] 22 |     context: &'a CompileContext<'a>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 23 |     /// mrb_sym filename_sym;
[INFO] [stdout] 24 |     filename_sym: Symbol,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 25 |     /// uint16_t lineno;
[INFO] [stdout] 26 |     line_no: u16,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 27 |     /// int column;
[INFO] [stdout] 28 |     column: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 29 |     /// enum mrb_lex_state_enum lstate;
[INFO] [stdout] 30 |     lex_state: LexState,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 31 |     /// mrb_ast_node *lex_strterm; /* (type nest_level beg . end) */
[INFO] [stdout] 32 |     lex_strterm: &'a ASTNode<'a>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 33 |     /// unsigned int cond_stack;
[INFO] [stdout] 34 |     cond_stack: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 35 |     /// unsigned int cmdarg_stack;
[INFO] [stdout] 36 |     cmdarg_stack: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 37 |     /// int paren_nest;
[INFO] [stdout] 38 |     paren_nest: isize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 39 |     /// int lpar_beg;
[INFO] [stdout] 40 |     lpar_beg: isize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 41 |     /// int in_def;
[INFO] [stdout] 42 |     in_def: isize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 43 |     /// int in_single;
[INFO] [stdout] 44 |     in_single: isize,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 45 |     /// mrb_bool cmd_start:1;
[INFO] [stdout] 46 |     cmd_start: bool,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 47 |     /// mrb_ast_node *locals;
[INFO] [stdout] 48 |     locals: &'a ASTNode<'a>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 49 |     /// mrb_ast_node *pb;
[INFO] [stdout] 50 |     pb: &'a ASTNode<'a>,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 51 |     /// char *tokbuf;
[INFO] [stdout] 52 |     tokbuf: &'a str,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 53 |     /// char buf[MRB_PARSER_TOKBUF_SIZE];
[INFO] [stdout] 54 |     buf: [char; 256],
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 55 |     /// int tidx;
[INFO] [stdout] 56 |     tidx: usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 57 |     /// int tsiz;
[INFO] [stdout] 58 |     tsiz: usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     all_heredocs: &'a ASTNode<'a>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 62 |     // mrb_ast_node *heredocs_from_nextline;
[INFO] [stdout] 63 |     heredocs_from_nextline: &'a ASTNode<'a>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 64 |     // mrb_ast_node *parsing_heredoc;
[INFO] [stdout] 65 |     parsing_heredoc: &'a ASTNode<'a>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 66 |     // mrb_ast_node *lex_strterm_before_heredoc;
[INFO] [stdout] 67 |     lex_strterm_before_heredoc: &'a ASTNode<'a>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     ylval: (),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     nerr: isize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 74 |     // size_t nwarn;
[INFO] [stdout] 75 |     nwarn: isize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 76 |     // mrb_ast_node *tree;
[INFO] [stdout] 77 |     tree: &'a ASTNode<'a>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 80 |     no_optimize: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 81 |     // mrb_bool on_eval:1;
[INFO] [stdout] 82 |     on_eval: bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 83 |     // mrb_bool capture_errors:1;
[INFO] [stdout] 84 |     capture_errors: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 85 |     // struct mrb_parser_message error_buffer[10];
[INFO] [stdout] 86 |     error_buffer: [ParserMessage; 10],
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 87 |     // struct mrb_parser_message warn_buffer[10];
[INFO] [stdout] 88 |     warn_buffer: [ParserMessage; 10],
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 91 |     filename_table: Vec<Symbol>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 92 |     current_filename_index: isize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95 |     jmp: &'a JumpBuffer,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `prev`, `next`, `line_no`, and `filename_idx` are never read
[INFO] [stdout]    --> ruby-core/src/compiler.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub struct ASTNode<'a> {
[INFO] [stdout]     |            ------- fields in this struct
[INFO] [stdout] 101 |     prev: &'a Self,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 102 |     next: &'a Self,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 103 |     line_no: u16,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 104 |     filename_idx: u16,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]    --> ruby-core/src/compiler.rs:111:5
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub struct CompileContext<'a> {
[INFO] [stdout]     |            -------------- fields in this struct
[INFO] [stdout] 110 |     // mrb_sym *syms;
[INFO] [stdout] 111 |     symbols: &'a Symbol,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 112 |     // int slen;
[INFO] [stdout] 113 |     slen: usize,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 114 |     // char *filename;
[INFO] [stdout] 115 |     filename: &'a usize,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 116 |     // uint16_t lineno;
[INFO] [stdout] 117 |     line_no: u16,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 118 |     // int (*partial_hook)(struct mrb_parser_state*);
[INFO] [stdout] 119 |     partial_hook: &'a fn(&'a ParserState) -> usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 120 |     // void *partial_data;
[INFO] [stdout] 121 |     partial_data: &'a u8,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 122 |     // struct RClass *target_class;
[INFO] [stdout] 123 |     target_class: &'a RClass<'a>,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 124 |     // mrb_bool capture_errors:1;
[INFO] [stdout] 125 |     capture_errors: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 126 |     // mrb_bool dump_result:1;
[INFO] [stdout] 127 |     dump_result: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 128 |     // mrb_bool no_exec:1;
[INFO] [stdout] 129 |     no_exec: bool,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 130 |     // mrb_bool keep_lv:1;
[INFO] [stdout] 131 |     keep_lv: bool,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 132 |     // mrb_bool no_optimize:1;
[INFO] [stdout] 133 |     no_optimize: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 134 |     // mrb_bool on_eval:1;
[INFO] [stdout] 135 |     on_eval: bool,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 136 |     // size_t parser_nerr;
[INFO] [stdout] 137 |     parser_err_no: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `line_no`, `column`, and `message` are never read
[INFO] [stdout]    --> ruby-core/src/compiler.rs:159:5
[INFO] [stdout]     |
[INFO] [stdout] 158 | pub struct ParserMessage {
[INFO] [stdout]     |            ------------- fields in this struct
[INFO] [stdout] 159 |     line_no: u16,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 160 |     column: usize,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 161 |     message: String,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ParserHeredocInfo` is never constructed
[INFO] [stdout]    --> ruby-core/src/compiler.rs:165:12
[INFO] [stdout]     |
[INFO] [stdout] 165 | pub struct ParserHeredocInfo<'a> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `c`, `gc_next`, `tt`, `color`, `flags`, and `instance_variables` are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/error.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / define_object_struct! {
[INFO] [stdout] 4  | |     #[maps_to(mruby: RException)]
[INFO] [stdout] 5  | |     RException {
[INFO] [stdout]    | |     ---------- fields in this struct
[INFO] [stdout] 6  | |         instance_variables: &'a VariableTable
[INFO] [stdout]    | |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 7  | |     }
[INFO] [stdout] 8  | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `c`, `gc_next`, `tt`, `color`, `flags`, and `proc` are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/error.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / define_object_struct! {
[INFO] [stdout] 11 | |     #[maps_to(mruby: RBreak)]
[INFO] [stdout] 12 | |     RBreak {
[INFO] [stdout]    | |     ------ fields in this struct
[INFO] [stdout] 13 | |         proc: &'a RProc<'a>
[INFO] [stdout]    | |         ^^^^
[INFO] [stdout] 14 | |         //union mrb_value_union value;
[INFO] [stdout] 15 | |     }
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/hash.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout] 4  | / define_object_struct! {
[INFO] [stdout] 5  | |     #[maps_to(mruby: RHash)]
[INFO] [stdout] 6  | |     RHash {
[INFO] [stdout]    | |     ----- fields in this struct
[INFO] [stdout] 7  | |         instance_variables: &'a VariableTable,
[INFO] [stdout]    | |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 8  | |         hash_table: &'a HashMap<Value, Value>
[INFO] [stdout]    | |         ^^^^^^^^^^
[INFO] [stdout] 9  | |     }
[INFO] [stdout] 10 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/hash.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout] 4  | / define_object_struct! {
[INFO] [stdout] 5  | |     #[maps_to(mruby: RHash)]
[INFO] [stdout] 6  | |     RHash {
[INFO] [stdout]    | |     ----- fields in this struct
[INFO] [stdout] 7  | |         instance_variables: &'a VariableTable,
[INFO] [stdout]    | |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 8  | |         hash_table: &'a HashMap<Value, Value>
[INFO] [stdout]    | |         ^^^^^^^^^^
[INFO] [stdout] 9  | |     }
[INFO] [stdout] 10 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `rb` is never read
[INFO] [stdout]  --> ruby-core/src/memory_pool.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct MemoryPool<'a> {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 6 |     rb: &'a Ruby,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Freezable` is never used
[INFO] [stdout]  --> ruby-core/src/object.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) trait Freezable {
[INFO] [stdout]   |                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `rb` is never read
[INFO] [stdout]  --> ruby-core/src/memory_pool.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct MemoryPool<'a> {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 6 |     rb: &'a Ruby,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Freezable` is never used
[INFO] [stdout]  --> ruby-core/src/object.rs:3:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) trait Freezable {
[INFO] [stdout]   |                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `c`, `gc_next`, `tt`, `color`, and `flags` are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/object.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / define_object_struct! {
[INFO] [stdout] 11 | |     #[maps_to(mruby: RBasic)]
[INFO] [stdout] 12 | |     RBasic {}
[INFO] [stdout]    | |     ------ fields in this struct
[INFO] [stdout] 13 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `c`, `gc_next`, `tt`, `color`, and `flags` are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/object.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / define_object_struct! {
[INFO] [stdout] 11 | |     #[maps_to(mruby: RBasic)]
[INFO] [stdout] 12 | |     RBasic {}
[INFO] [stdout]    | |     ------ fields in this struct
[INFO] [stdout] 13 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `c`, `gc_next`, `tt`, `color`, `flags`, and `instance_variables` are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/object.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | / define_object_struct! {
[INFO] [stdout] 16 | |     #[maps_to(mruby: RObject)]
[INFO] [stdout] 17 | |     RObject {
[INFO] [stdout]    | |     ------- fields in this struct
[INFO] [stdout] 18 | |         instance_variables: &'a VariableTable
[INFO] [stdout]    | |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 19 | |     }
[INFO] [stdout] 20 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `c`, `gc_next`, `tt`, `color`, and `flags` are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/object.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | / define_object_struct! {
[INFO] [stdout] 23 | |     #[maps_to(mruby: RFiber)]
[INFO] [stdout] 24 | |     RFiber {
[INFO] [stdout]    | |     ------ fields in this struct
[INFO] [stdout] 25 | |         //struct mrb_context *cxt;
[INFO] [stdout] 26 | |     }
[INFO] [stdout] 27 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/proc.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / define_object_struct! {
[INFO] [stdout] 4  | |     #[maps_to(mruby: REnv)]
[INFO] [stdout] 5  | |     REnv {
[INFO] [stdout]    | |     ---- fields in this struct
[INFO] [stdout] 6  | |         stack: &'a Value,
[INFO] [stdout]    | |         ^^^^^
[INFO] [stdout] 7  | |         //struct mrb_context *cxt;
[INFO] [stdout] 8  | |         mid: Symbol
[INFO] [stdout]    | |         ^^^
[INFO] [stdout] 9  | |     }
[INFO] [stdout] 10 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `c`, `gc_next`, `tt`, `color`, and `flags` are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/proc.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / define_object_struct! {
[INFO] [stdout] 13 | |     #[maps_to(mruby: RProc)]
[INFO] [stdout] 14 | |     RProc {
[INFO] [stdout]    | |     ----- fields in this struct
[INFO] [stdout] 15 | |       // union {
[INFO] [stdout] ...  |
[INFO] [stdout] 24 | |     }
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/range.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / define_object_struct! {
[INFO] [stdout] 4  | |     #[maps_to(mruby: RRange)]
[INFO] [stdout] 5  | |     RRange {
[INFO] [stdout]    | |     ------ fields in this struct
[INFO] [stdout] 6  | |         beg: Value,
[INFO] [stdout]    | |         ^^^
[INFO] [stdout] 7  | |         end: Value,
[INFO] [stdout]    | |         ^^^
[INFO] [stdout] 8  | |         excl: bool
[INFO] [stdout]    | |         ^^^^
[INFO] [stdout] 9  | |     }
[INFO] [stdout] 10 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `c`, `gc_next`, `tt`, `color`, `flags`, and `instance_variables` are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/object.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | / define_object_struct! {
[INFO] [stdout] 16 | |     #[maps_to(mruby: RObject)]
[INFO] [stdout] 17 | |     RObject {
[INFO] [stdout]    | |     ------- fields in this struct
[INFO] [stdout] 18 | |         instance_variables: &'a VariableTable
[INFO] [stdout]    | |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 19 | |     }
[INFO] [stdout] 20 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `c`, `gc_next`, `tt`, `color`, and `flags` are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/string.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | / define_object_struct! {
[INFO] [stdout] 2  | |     #[maps_to(mruby: RString)]
[INFO] [stdout] 3  | |     RString {
[INFO] [stdout]    | |     ------- fields in this struct
[INFO] [stdout] 4  | |         //   union {
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | |     }
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `c`, `gc_next`, `tt`, `color`, and `flags` are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/object.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | / define_object_struct! {
[INFO] [stdout] 23 | |     #[maps_to(mruby: RFiber)]
[INFO] [stdout] 24 | |     RFiber {
[INFO] [stdout]    | |     ------ fields in this struct
[INFO] [stdout] 25 | |         //struct mrb_context *cxt;
[INFO] [stdout] 26 | |     }
[INFO] [stdout] 27 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `c`, `gc_next`, `tt`, `color`, and `flags` are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/string.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | / define_object_struct! {
[INFO] [stdout] 19 | |     #[maps_to(mruby: RStringEmbed)]
[INFO] [stdout] 20 | |     RStringEmbed {
[INFO] [stdout]    | |     ------------ fields in this struct
[INFO] [stdout] 21 | |         //   char ary[];
[INFO] [stdout] 22 | |     }
[INFO] [stdout] 23 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/proc.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / define_object_struct! {
[INFO] [stdout] 4  | |     #[maps_to(mruby: REnv)]
[INFO] [stdout] 5  | |     REnv {
[INFO] [stdout]    | |     ---- fields in this struct
[INFO] [stdout] 6  | |         stack: &'a Value,
[INFO] [stdout]    | |         ^^^^^
[INFO] [stdout] 7  | |         //struct mrb_context *cxt;
[INFO] [stdout] 8  | |         mid: Symbol
[INFO] [stdout]    | |         ^^^
[INFO] [stdout] 9  | |     }
[INFO] [stdout] 10 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `c`, `gc_next`, `tt`, `color`, and `flags` are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/proc.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / define_object_struct! {
[INFO] [stdout] 13 | |     #[maps_to(mruby: RProc)]
[INFO] [stdout] 14 | |     RProc {
[INFO] [stdout]    | |     ----- fields in this struct
[INFO] [stdout] 15 | |       // union {
[INFO] [stdout] ...  |
[INFO] [stdout] 24 | |     }
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/range.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / define_object_struct! {
[INFO] [stdout] 4  | |     #[maps_to(mruby: RRange)]
[INFO] [stdout] 5  | |     RRange {
[INFO] [stdout]    | |     ------ fields in this struct
[INFO] [stdout] 6  | |         beg: Value,
[INFO] [stdout]    | |         ^^^
[INFO] [stdout] 7  | |         end: Value,
[INFO] [stdout]    | |         ^^^
[INFO] [stdout] 8  | |         excl: bool
[INFO] [stdout]    | |         ^^^^
[INFO] [stdout] 9  | |     }
[INFO] [stdout] 10 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `c`, `gc_next`, `tt`, `color`, and `flags` are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/string.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | / define_object_struct! {
[INFO] [stdout] 2  | |     #[maps_to(mruby: RString)]
[INFO] [stdout] 3  | |     RString {
[INFO] [stdout]    | |     ------- fields in this struct
[INFO] [stdout] 4  | |         //   union {
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | |     }
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `c`, `gc_next`, `tt`, `color`, and `flags` are never read
[INFO] [stdout]   --> ruby-core/src/macros.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout] 7  |               c: &'a crate::RClass<'a>,
[INFO] [stdout]    |               ^
[INFO] [stdout] 8  |               gc_next: &'a crate::RBasic<'a>,
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout] 9  |               tt: crate::ValueType,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 10 |               color: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 11 |               flags: u32,
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: ruby-core/src/string.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | / define_object_struct! {
[INFO] [stdout] 19 | |     #[maps_to(mruby: RStringEmbed)]
[INFO] [stdout] 20 | |     RStringEmbed {
[INFO] [stdout]    | |     ------------ fields in this struct
[INFO] [stdout] 21 | |         //   char ary[];
[INFO] [stdout] 22 | |     }
[INFO] [stdout] 23 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `define_object_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking ruby-lexer v0.1.0 (/opt/rustwide/workdir/ruby-lexer)
[INFO] [stdout] warning: unused imports: `BUFFER_SIZE`, `Location`, `SpannedToken`
[INFO] [stdout]  --> ruby-lexer/src/lexer/identifiers.rs:1:41
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{LexResult, LexState, Lexer, Location, SpannedToken, Token, BUFFER_SIZE};
[INFO] [stdout]   |                                         ^^^^^^^^  ^^^^^^^^^^^^         ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::trace`
[INFO] [stdout]  --> ruby-lexer/src/lexer/identifiers.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use log::trace;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BUFFER_SIZE`, `Location`, `SpannedToken`
[INFO] [stdout]  --> ruby-lexer/src/lexer/identifiers.rs:1:41
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{LexResult, LexState, Lexer, Location, SpannedToken, Token, BUFFER_SIZE};
[INFO] [stdout]   |                                         ^^^^^^^^  ^^^^^^^^^^^^         ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::trace`
[INFO] [stdout]  --> ruby-lexer/src/lexer/identifiers.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use log::trace;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `env_logger` is imported redundantly
[INFO] [stdout]   --> ruby-lexer/src/lexer.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use env_logger;
[INFO] [stdout]    |     ^^^^^^^^^^ the item `env_logger` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> ruby-lexer/src/lexer.rs:96:33
[INFO] [stdout]    |
[INFO] [stdout] 95 | ...                   todo!();
[INFO] [stdout]    |                       ------- any code following this expression is unreachable
[INFO] [stdout] 96 | ...                   break;
[INFO] [stdout]    |                       ^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> ruby-lexer/src/lexer.rs:105:33
[INFO] [stdout]     |
[INFO] [stdout] 104 | ...                   todo!();
[INFO] [stdout]     |                       ------- any code following this expression is unreachable
[INFO] [stdout] 105 | ...                   break;
[INFO] [stdout]     |                       ^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> ruby-lexer/src/lexer.rs:96:33
[INFO] [stdout]    |
[INFO] [stdout] 95 | ...                   todo!();
[INFO] [stdout]    |                       ------- any code following this expression is unreachable
[INFO] [stdout] 96 | ...                   break;
[INFO] [stdout]    |                       ^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> ruby-lexer/src/lexer.rs:105:33
[INFO] [stdout]     |
[INFO] [stdout] 104 | ...                   todo!();
[INFO] [stdout]     |                       ------- any code following this expression is unreachable
[INFO] [stdout] 105 | ...                   break;
[INFO] [stdout]     |                       ^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token_type`
[INFO] [stdout]   --> ruby-lexer/src/lexer/identifiers.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let token_type: IdentifierType = match ident.chars().nth(0).unwrap() {
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_token_type`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token_type`
[INFO] [stdout]   --> ruby-lexer/src/lexer/identifiers.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let token_type: IdentifierType = match ident.chars().nth(0).unwrap() {
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_token_type`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `lex_multi_line_comment` is never used
[INFO] [stdout]    --> ruby-lexer/src/lexer.rs:414:8
[INFO] [stdout]     |
[INFO] [stdout] 40  | / impl<T> Lexer<T>
[INFO] [stdout] 41  | | where
[INFO] [stdout] 42  | |     T: Iterator<Item = char>,
[INFO] [stdout]     | |_____________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 414 |       fn lex_multi_line_comment(&mut self) -> LexResult {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_tokenizer` is never used
[INFO] [stdout]    --> ruby-lexer/src/lexer.rs:475:8
[INFO] [stdout]     |
[INFO] [stdout] 475 | pub fn make_tokenizer(source: &str) -> impl Iterator<Item = LexResult> + '_ {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_end` is never used
[INFO] [stdout]   --> ruby-lexer/src/lexer/lex_state.rs:37:19
[INFO] [stdout]    |
[INFO] [stdout] 27 | / impl<T> Lexer<T>
[INFO] [stdout] 28 | | where
[INFO] [stdout] 29 | |     T: Iterator<Item = char>,
[INFO] [stdout]    | |_____________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 37 |       pub(crate) fn is_end(&self) -> bool {
[INFO] [stdout]    |                     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `lex_multi_line_comment` is never used
[INFO] [stdout]    --> ruby-lexer/src/lexer.rs:414:8
[INFO] [stdout]     |
[INFO] [stdout] 40  | / impl<T> Lexer<T>
[INFO] [stdout] 41  | | where
[INFO] [stdout] 42  | |     T: Iterator<Item = char>,
[INFO] [stdout]     | |_____________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 414 |       fn lex_multi_line_comment(&mut self) -> LexResult {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_end` is never used
[INFO] [stdout]   --> ruby-lexer/src/lexer/lex_state.rs:37:19
[INFO] [stdout]    |
[INFO] [stdout] 27 | / impl<T> Lexer<T>
[INFO] [stdout] 28 | | where
[INFO] [stdout] 29 | |     T: Iterator<Item = char>,
[INFO] [stdout]    | |_____________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 37 |       pub(crate) fn is_end(&self) -> bool {
[INFO] [stdout]    |                     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rustyline v5.0.6
[INFO] [stderr]     Checking ruby v0.1.0 (/opt/rustwide/workdir/ruby)
[INFO] [stdout] warning: fields `f1`, `f2`, and `word` are never read
[INFO] [stdout]   --> ruby/src/bin/playground.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | struct Basic {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 9  |     f1: f32,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 10 |     f2: f32,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 11 |     word: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `f0` is never read
[INFO] [stdout]   --> ruby/src/bin/playground.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Wrapped {
[INFO] [stdout]    |        ------- field in this struct
[INFO] [stdout] 15 |     f0: Basic,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `f1`, `f2`, and `word` are never read
[INFO] [stdout]   --> ruby/src/bin/playground.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | struct Basic {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 9  |     f1: f32,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 10 |     f2: f32,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 11 |     word: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `f0` is never read
[INFO] [stdout]   --> ruby/src/bin/playground.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Wrapped {
[INFO] [stdout]    |        ------- field in this struct
[INFO] [stdout] 15 |     f0: Basic,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.43s
[INFO] running `Command { std: "docker" "inspect" "c2eefffda493504bd9747a6c0faac4ce4e915008181263d479571d28122d5d01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2eefffda493504bd9747a6c0faac4ce4e915008181263d479571d28122d5d01", kill_on_drop: false }`
[INFO] [stdout] c2eefffda493504bd9747a6c0faac4ce4e915008181263d479571d28122d5d01