[INFO] cloning repository https://github.com/illumi-engineering/maple-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/illumi-engineering/maple-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fillumi-engineering%2Fmaple-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fillumi-engineering%2Fmaple-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3b7964d733757ff6697a7be44f4250e534dc9a1b
[INFO] testing illumi-engineering/maple-lang against master#0d162b25edd5bf0dba9a22e83b614f1113e90474 for pr-150681-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fillumi-engineering%2Fmaple-lang" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/illumi-engineering/maple-lang
[INFO] finished tweaking git repo https://github.com/illumi-engineering/maple-lang
[INFO] tweaked toml for git repo https://github.com/illumi-engineering/maple-lang written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/illumi-engineering/maple-lang on toolchain 0d162b25edd5bf0dba9a22e83b614f1113e90474
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/illumi-engineering/maple-lang 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" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[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 serde_derive v1.0.193
[INFO] [stderr]   Downloaded quote v1.0.33
[INFO] [stderr]   Downloaded serde v1.0.193
[INFO] [stderr]   Downloaded proc-macro2 v1.0.71
[INFO] [stderr]   Downloaded memchr v2.6.4
[INFO] [stderr]   Downloaded syn v2.0.42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e78e3966a0b53e07330f6020452ca860e0f6e62d9259859f9e48d815b02c9459
[INFO] running `Command { std: "docker" "start" "-a" "e78e3966a0b53e07330f6020452ca860e0f6e62d9259859f9e48d815b02c9459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e78e3966a0b53e07330f6020452ca860e0f6e62d9259859f9e48d815b02c9459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e78e3966a0b53e07330f6020452ca860e0f6e62d9259859f9e48d815b02c9459", kill_on_drop: false }`
[INFO] [stdout] e78e3966a0b53e07330f6020452ca860e0f6e62d9259859f9e48d815b02c9459
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc936ead86023573aa287f5c9d86ddb69a93a725dc08d83924e5e8115690d4a8
[INFO] running `Command { std: "docker" "start" "-a" "dc936ead86023573aa287f5c9d86ddb69a93a725dc08d83924e5e8115690d4a8", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling proc-macro2 v1.0.71
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling gimli v0.28.1
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling maple-ir v0.1.0 (/opt/rustwide/workdir/crates/maple-ir)
[INFO] [stdout] warning: unused imports: `types::Type`, `values::Value`, and `variable::VariableDeclaration`
[INFO] [stdout]  --> crates/maple-ir/src/spread.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{variable::VariableDeclaration, types::Type, values::Value};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reciever_values` is never read
[INFO] [stdout]  --> crates/maple-ir/src/prototype.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct PrototypeMethod<'a,> {
[INFO] [stdout]   |            --------------- field in this struct
[INFO] [stdout] 8 |     closure: &'a mut Closure<'a>,
[INFO] [stdout] 9 |     reciever_values: Spread,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `receiver` is never read
[INFO] [stdout]   --> crates/maple-ir/src/prototype.rs:26:16
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct Prototype<'a, T : Type, V : Value<T>> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 26 |     pub(crate) receiver: V,
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling object v0.32.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling syn v2.0.42
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling addr2line v0.21.0
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]    Compiling maple-lexer v0.1.0 (/opt/rustwide/workdir/crates/maple-lexer)
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_error_description_deprecated`
[INFO] [stdout]   --> crates/maple-lexer/src/errors.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout]  5 | / error_chain!{
[INFO] [stdout]  6 | |     errors {
[INFO] [stdout]  7 | |         /// Got to the end of the input stream but was expecting more.
[INFO] [stdout]  8 | |         UnexpectedEOF {
[INFO] [stdout] ...  |
[INFO] [stdout] 33 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `impl_error_chain_processed` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = help: the macro `impl_error_chain_processed` may come from an old version of the `error_chain` crate, try updating your dependency with `cargo update -p error_chain`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:109:40
[INFO] [stdout]     |
[INFO] [stdout] 109 |         Some(ch) if ch.is_digit(10) => return bail!("Identifiers can't start with a number"),
[INFO] [stdout]     |                                        ^^^^^^^----------------------------------------------
[INFO] [stdout]     |                                        |      |
[INFO] [stdout]     |                                        |      any code following this expression is unreachable
[INFO] [stdout]     |                                        unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:110:17
[INFO] [stdout]     |
[INFO] [stdout] 110 |         None => return bail!(ErrorKind::UnexpectedEOF),
[INFO] [stdout]     |                 ^^^^^^^-------------------------------
[INFO] [stdout]     |                 |      |
[INFO] [stdout]     |                 |      any code following this expression is unreachable
[INFO] [stdout]     |                 unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:224:13
[INFO] [stdout]     |
[INFO] [stdout] 208 |         '_' => (TokenKind::Underscore, 1),
[INFO] [stdout]     |         --- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 224 |         c @ '_' | c if c.is_alphabetic() => tokenize_identifier(data)
[INFO] [stdout]     |             ^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TokenKind` is never used
[INFO] [stdout]   --> crates/maple-lexer/src/lex.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum TokenKind {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_while` is never used
[INFO] [stdout]   --> crates/maple-lexer/src/lex.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn take_while<F>(data: &str, mut pred: F) -> Result<(&str, usize)>
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tokenize_identifier` is never used
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:106:4
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn tokenize_identifier(data: &str) -> Result<(TokenKind, usize)> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tokenize_number` is never used
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:122:4
[INFO] [stdout]     |
[INFO] [stdout] 122 | fn tokenize_number(data: &str) -> Result<(TokenKind, usize)> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `skip_whitespace` is never used
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:149:4
[INFO] [stdout]     |
[INFO] [stdout] 149 | fn skip_whitespace(data: &str) -> usize {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `skip_comments` is never used
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:156:4
[INFO] [stdout]     |
[INFO] [stdout] 156 | fn skip_comments(src: &str) -> usize {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `skip_until` is never used
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:169:4
[INFO] [stdout]     |
[INFO] [stdout] 169 | fn skip_until<'a>(mut src: &'a str, pattern: &str) -> &'a str {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `skip` is never used
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:178:4
[INFO] [stdout]     |
[INFO] [stdout] 178 | fn skip(src: &str) -> usize {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tokenize_single_token` is never used
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:194:8
[INFO] [stdout]     |
[INFO] [stdout] 194 | pub fn tokenize_single_token(data: &str) -> Result<(TokenKind, usize)> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tokenizer` is never constructed
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:232:8
[INFO] [stdout]     |
[INFO] [stdout] 232 | struct Tokenizer<'a> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `next_token`, `skip_whitespace`, and `chomp` are never used
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:238:8
[INFO] [stdout]     |
[INFO] [stdout] 237 | impl<'a> Tokenizer<'a> {
[INFO] [stdout]     | ---------------------- associated items in this implementation
[INFO] [stdout] 238 |     fn new(src: &str) -> Tokenizer {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 245 |     fn next_token(&mut self) -> Result<Option<(TokenKind, usize, usize)>> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 260 |     fn skip_whitespace(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 272 |     fn chomp(&mut self, num_bytes: usize) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tokenize` is never used
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:283:8
[INFO] [stdout]     |
[INFO] [stdout] 283 | pub fn tokenize(src: &str) -> Result<Vec<(TokenKind, usize, usize)>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Token` is never constructed
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:295:12
[INFO] [stdout]     |
[INFO] [stdout] 295 | pub struct Token {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:306:12
[INFO] [stdout]     |
[INFO] [stdout] 303 | impl Token {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 306 |     pub fn new<K: Into<TokenKind>>(span: Span, kind: K) -> Token {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Span` is never constructed
[INFO] [stdout]   --> crates/maple-lexer/src/codemap.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Span(usize);
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `dummy` is never used
[INFO] [stdout]   --> crates/maple-lexer/src/codemap.rs:24:19
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl Span {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub(crate) fn dummy() -> Span {
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CodeMap` is never constructed
[INFO] [stdout]   --> crates/maple-lexer/src/codemap.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct CodeMap {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileMap` is never constructed
[INFO] [stdout]   --> crates/maple-lexer/src/codemap.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct FileMap {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert_file`, `lookup`, and `files` are never used
[INFO] [stdout]   --> crates/maple-lexer/src/codemap.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl CodeMap {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 47 |     /// Create a new, empty `CodeMap`.
[INFO] [stdout] 48 |     pub fn new() -> CodeMap {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn insert_file<C, F>(&mut self, filename: F, contents: C) -> Rc<FileMap>
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn lookup(&self, span: Span) -> &str {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |     pub fn files(&self) -> &[Rc<FileMap>] {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `filename`, `contents`, `lookup`, and `range_of` are never used
[INFO] [stdout]    --> crates/maple-lexer/src/codemap.rs:97:12
[INFO] [stdout]     |
[INFO] [stdout]  95 | impl FileMap {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout]  96 |     /// Get the name of this `FileMap`.
[INFO] [stdout]  97 |     pub fn filename(&self) -> &str {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     pub fn contents(&self) -> &str {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 113 |     pub fn lookup(&self, span: Span) -> Option<&str> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub fn range_of(&self, span: Span) -> Option<Range<usize>> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `insert_span`, `reverse_lookup`, `merge`, and `register_tokens` are never used
[INFO] [stdout]    --> crates/maple-lexer/src/codemap.rs:143:12
[INFO] [stdout]     |
[INFO] [stdout] 132 | impl FileMap {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 143 |     pub fn insert_span(&self, start: usize, end: usize) -> Span {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 169 |     fn reverse_lookup(&self, needle: &Range<usize>) -> Option<Span> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 181 |     pub fn merge(&self, first: Span, second: Span) -> Span {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 194 |     pub fn register_tokens(&self, tokens: Vec<(TokenKind, usize, usize)>) -> Vec<Token> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:238:17
[INFO] [stdout]     |
[INFO] [stdout] 238 |     fn new(src: &str) -> Tokenizer {
[INFO] [stdout]     |                 ^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 238 |     fn new(src: &str) -> Tokenizer<'_> {
[INFO] [stdout]     |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.14s
[INFO] running `Command { std: "docker" "inspect" "dc936ead86023573aa287f5c9d86ddb69a93a725dc08d83924e5e8115690d4a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc936ead86023573aa287f5c9d86ddb69a93a725dc08d83924e5e8115690d4a8", kill_on_drop: false }`
[INFO] [stdout] dc936ead86023573aa287f5c9d86ddb69a93a725dc08d83924e5e8115690d4a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b404ceb2053d8217d0df5ccba27f9bf60a8bdfd744f56e960706e39c35237e72
[INFO] running `Command { std: "docker" "start" "-a" "b404ceb2053d8217d0df5ccba27f9bf60a8bdfd744f56e960706e39c35237e72", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stdout] warning: unused imports: `types::Type`, `values::Value`, and `variable::VariableDeclaration`
[INFO] [stdout]  --> crates/maple-ir/src/spread.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{variable::VariableDeclaration, types::Type, values::Value};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling maple-ir v0.1.0 (/opt/rustwide/workdir/crates/maple-ir)
[INFO] [stdout] warning: field `reciever_values` is never read
[INFO] [stdout]  --> crates/maple-ir/src/prototype.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct PrototypeMethod<'a,> {
[INFO] [stdout]   |            --------------- field in this struct
[INFO] [stdout] 8 |     closure: &'a mut Closure<'a>,
[INFO] [stdout] 9 |     reciever_values: Spread,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `receiver` is never read
[INFO] [stdout]   --> crates/maple-ir/src/prototype.rs:26:16
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct Prototype<'a, T : Type, V : Value<T>> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 26 |     pub(crate) receiver: V,
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling maple-lexer v0.1.0 (/opt/rustwide/workdir/crates/maple-lexer)
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_error_description_deprecated`
[INFO] [stdout]   --> crates/maple-lexer/src/errors.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout]  5 | / error_chain!{
[INFO] [stdout]  6 | |     errors {
[INFO] [stdout]  7 | |         /// Got to the end of the input stream but was expecting more.
[INFO] [stdout]  8 | |         UnexpectedEOF {
[INFO] [stdout] ...  |
[INFO] [stdout] 33 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `impl_error_chain_processed` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = help: the macro `impl_error_chain_processed` may come from an old version of the `error_chain` crate, try updating your dependency with `cargo update -p error_chain`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:109:40
[INFO] [stdout]     |
[INFO] [stdout] 109 |         Some(ch) if ch.is_digit(10) => return bail!("Identifiers can't start with a number"),
[INFO] [stdout]     |                                        ^^^^^^^----------------------------------------------
[INFO] [stdout]     |                                        |      |
[INFO] [stdout]     |                                        |      any code following this expression is unreachable
[INFO] [stdout]     |                                        unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:110:17
[INFO] [stdout]     |
[INFO] [stdout] 110 |         None => return bail!(ErrorKind::UnexpectedEOF),
[INFO] [stdout]     |                 ^^^^^^^-------------------------------
[INFO] [stdout]     |                 |      |
[INFO] [stdout]     |                 |      any code following this expression is unreachable
[INFO] [stdout]     |                 unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:224:13
[INFO] [stdout]     |
[INFO] [stdout] 208 |         '_' => (TokenKind::Underscore, 1),
[INFO] [stdout]     |         --- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 224 |         c @ '_' | c if c.is_alphabetic() => tokenize_identifier(data)
[INFO] [stdout]     |             ^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TokenKind` is never used
[INFO] [stdout]   --> crates/maple-lexer/src/lex.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum TokenKind {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_while` is never used
[INFO] [stdout]   --> crates/maple-lexer/src/lex.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn take_while<F>(data: &str, mut pred: F) -> Result<(&str, usize)>
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tokenize_identifier` is never used
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:106:4
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn tokenize_identifier(data: &str) -> Result<(TokenKind, usize)> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tokenize_number` is never used
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:122:4
[INFO] [stdout]     |
[INFO] [stdout] 122 | fn tokenize_number(data: &str) -> Result<(TokenKind, usize)> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `skip_whitespace` is never used
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:149:4
[INFO] [stdout]     |
[INFO] [stdout] 149 | fn skip_whitespace(data: &str) -> usize {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `skip_comments` is never used
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:156:4
[INFO] [stdout]     |
[INFO] [stdout] 156 | fn skip_comments(src: &str) -> usize {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `skip_until` is never used
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:169:4
[INFO] [stdout]     |
[INFO] [stdout] 169 | fn skip_until<'a>(mut src: &'a str, pattern: &str) -> &'a str {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `skip` is never used
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:178:4
[INFO] [stdout]     |
[INFO] [stdout] 178 | fn skip(src: &str) -> usize {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tokenize_single_token` is never used
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:194:8
[INFO] [stdout]     |
[INFO] [stdout] 194 | pub fn tokenize_single_token(data: &str) -> Result<(TokenKind, usize)> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tokenizer` is never constructed
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:232:8
[INFO] [stdout]     |
[INFO] [stdout] 232 | struct Tokenizer<'a> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `next_token`, `skip_whitespace`, and `chomp` are never used
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:238:8
[INFO] [stdout]     |
[INFO] [stdout] 237 | impl<'a> Tokenizer<'a> {
[INFO] [stdout]     | ---------------------- associated items in this implementation
[INFO] [stdout] 238 |     fn new(src: &str) -> Tokenizer {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 245 |     fn next_token(&mut self) -> Result<Option<(TokenKind, usize, usize)>> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 260 |     fn skip_whitespace(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 272 |     fn chomp(&mut self, num_bytes: usize) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tokenize` is never used
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:283:8
[INFO] [stdout]     |
[INFO] [stdout] 283 | pub fn tokenize(src: &str) -> Result<Vec<(TokenKind, usize, usize)>> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Token` is never constructed
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:295:12
[INFO] [stdout]     |
[INFO] [stdout] 295 | pub struct Token {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:306:12
[INFO] [stdout]     |
[INFO] [stdout] 303 | impl Token {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 306 |     pub fn new<K: Into<TokenKind>>(span: Span, kind: K) -> Token {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Span` is never constructed
[INFO] [stdout]   --> crates/maple-lexer/src/codemap.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Span(usize);
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `dummy` is never used
[INFO] [stdout]   --> crates/maple-lexer/src/codemap.rs:24:19
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl Span {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub(crate) fn dummy() -> Span {
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CodeMap` is never constructed
[INFO] [stdout]   --> crates/maple-lexer/src/codemap.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct CodeMap {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileMap` is never constructed
[INFO] [stdout]   --> crates/maple-lexer/src/codemap.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct FileMap {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `insert_file`, `lookup`, and `files` are never used
[INFO] [stdout]   --> crates/maple-lexer/src/codemap.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl CodeMap {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 47 |     /// Create a new, empty `CodeMap`.
[INFO] [stdout] 48 |     pub fn new() -> CodeMap {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn insert_file<C, F>(&mut self, filename: F, contents: C) -> Rc<FileMap>
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     pub fn lookup(&self, span: Span) -> &str {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |     pub fn files(&self) -> &[Rc<FileMap>] {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `filename`, `contents`, `lookup`, and `range_of` are never used
[INFO] [stdout]    --> crates/maple-lexer/src/codemap.rs:97:12
[INFO] [stdout]     |
[INFO] [stdout]  95 | impl FileMap {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout]  96 |     /// Get the name of this `FileMap`.
[INFO] [stdout]  97 |     pub fn filename(&self) -> &str {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     pub fn contents(&self) -> &str {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 113 |     pub fn lookup(&self, span: Span) -> Option<&str> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub fn range_of(&self, span: Span) -> Option<Range<usize>> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `insert_span`, `reverse_lookup`, `merge`, and `register_tokens` are never used
[INFO] [stdout]    --> crates/maple-lexer/src/codemap.rs:143:12
[INFO] [stdout]     |
[INFO] [stdout] 132 | impl FileMap {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 143 |     pub fn insert_span(&self, start: usize, end: usize) -> Span {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 169 |     fn reverse_lookup(&self, needle: &Range<usize>) -> Option<Span> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 181 |     pub fn merge(&self, first: Span, second: Span) -> Span {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 194 |     pub fn register_tokens(&self, tokens: Vec<(TokenKind, usize, usize)>) -> Vec<Token> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:238:17
[INFO] [stdout]     |
[INFO] [stdout] 238 |     fn new(src: &str) -> Tokenizer {
[INFO] [stdout]     |                 ^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 238 |     fn new(src: &str) -> Tokenizer<'_> {
[INFO] [stdout]     |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `types::Type`, `values::Value`, and `variable::VariableDeclaration`
[INFO] [stdout]  --> crates/maple-ir/src/spread.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{variable::VariableDeclaration, types::Type, values::Value};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reciever_values` is never read
[INFO] [stdout]  --> crates/maple-ir/src/prototype.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct PrototypeMethod<'a,> {
[INFO] [stdout]   |            --------------- field in this struct
[INFO] [stdout] 8 |     closure: &'a mut Closure<'a>,
[INFO] [stdout] 9 |     reciever_values: Spread,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `receiver` is never read
[INFO] [stdout]   --> crates/maple-ir/src/prototype.rs:26:16
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct Prototype<'a, T : Type, V : Value<T>> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 26 |     pub(crate) receiver: V,
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_error_description_deprecated`
[INFO] [stdout]   --> crates/maple-lexer/src/errors.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout]  5 | / error_chain!{
[INFO] [stdout]  6 | |     errors {
[INFO] [stdout]  7 | |         /// Got to the end of the input stream but was expecting more.
[INFO] [stdout]  8 | |         UnexpectedEOF {
[INFO] [stdout] ...  |
[INFO] [stdout] 33 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `impl_error_chain_processed` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = help: the macro `impl_error_chain_processed` may come from an old version of the `error_chain` crate, try updating your dependency with `cargo update -p error_chain`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:109:40
[INFO] [stdout]     |
[INFO] [stdout] 109 |         Some(ch) if ch.is_digit(10) => return bail!("Identifiers can't start with a number"),
[INFO] [stdout]     |                                        ^^^^^^^----------------------------------------------
[INFO] [stdout]     |                                        |      |
[INFO] [stdout]     |                                        |      any code following this expression is unreachable
[INFO] [stdout]     |                                        unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:110:17
[INFO] [stdout]     |
[INFO] [stdout] 110 |         None => return bail!(ErrorKind::UnexpectedEOF),
[INFO] [stdout]     |                 ^^^^^^^-------------------------------
[INFO] [stdout]     |                 |      |
[INFO] [stdout]     |                 |      any code following this expression is unreachable
[INFO] [stdout]     |                 unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:224:13
[INFO] [stdout]     |
[INFO] [stdout] 208 |         '_' => (TokenKind::Underscore, 1),
[INFO] [stdout]     |         --- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 224 |         c @ '_' | c if c.is_alphabetic() => tokenize_identifier(data)
[INFO] [stdout]     |             ^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Token` is never constructed
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:295:12
[INFO] [stdout]     |
[INFO] [stdout] 295 | pub struct Token {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:306:12
[INFO] [stdout]     |
[INFO] [stdout] 303 | impl Token {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 306 |     pub fn new<K: Into<TokenKind>>(span: Span, kind: K) -> Token {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `files` is never used
[INFO] [stdout]   --> crates/maple-lexer/src/codemap.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl CodeMap {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 84 |     pub fn files(&self) -> &[Rc<FileMap>] {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `register_tokens` is never used
[INFO] [stdout]    --> crates/maple-lexer/src/codemap.rs:194:12
[INFO] [stdout]     |
[INFO] [stdout] 132 | impl FileMap {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 194 |     pub fn register_tokens(&self, tokens: Vec<(TokenKind, usize, usize)>) -> Vec<Token> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> crates/maple-lexer/src/lex.rs:238:17
[INFO] [stdout]     |
[INFO] [stdout] 238 |     fn new(src: &str) -> Tokenizer {
[INFO] [stdout]     |                 ^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 238 |     fn new(src: &str) -> Tokenizer<'_> {
[INFO] [stdout]     |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "b404ceb2053d8217d0df5ccba27f9bf60a8bdfd744f56e960706e39c35237e72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b404ceb2053d8217d0df5ccba27f9bf60a8bdfd744f56e960706e39c35237e72", kill_on_drop: false }`
[INFO] [stdout] b404ceb2053d8217d0df5ccba27f9bf60a8bdfd744f56e960706e39c35237e72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5161330d5f0057cf24512848c669984a4b761fecca49b04a202fe4747031f637
[INFO] running `Command { std: "docker" "start" "-a" "5161330d5f0057cf24512848c669984a4b761fecca49b04a202fe4747031f637", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] warning: unused imports: `types::Type`, `values::Value`, and `variable::VariableDeclaration`
[INFO] [stderr]  --> crates/maple-ir/src/spread.rs:1:13
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::{variable::VariableDeclaration, types::Type, values::Value};
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `reciever_values` is never read
[INFO] [stderr]  --> crates/maple-ir/src/prototype.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct PrototypeMethod<'a,> {
[INFO] [stderr]   |            --------------- field in this struct
[INFO] [stderr] 8 |     closure: &'a mut Closure<'a>,
[INFO] [stderr] 9 |     reciever_values: Spread,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `receiver` is never read
[INFO] [stderr]   --> crates/maple-ir/src/prototype.rs:26:16
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub struct Prototype<'a, T : Type, V : Value<T>> {
[INFO] [stderr]    |            --------- field in this struct
[INFO] [stderr] 26 |     pub(crate) receiver: V,
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `maple-ir` (lib) generated 3 warnings (run `cargo fix --lib -p maple-ir` to apply 1 suggestion)
[INFO] [stderr] warning: `maple-ir` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr] warning: unexpected `cfg` condition name: `has_error_description_deprecated`
[INFO] [stderr]   --> crates/maple-lexer/src/errors.rs:5:1
[INFO] [stderr]    |
[INFO] [stderr]  5 | / error_chain!{
[INFO] [stderr]  6 | |     errors {
[INFO] [stderr]  7 | |         /// Got to the end of the input stream but was expecting more.
[INFO] [stderr]  8 | |         UnexpectedEOF {
[INFO] [stderr] ...  |
[INFO] [stderr] 33 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stderr]    = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stderr]    = help: try referring to `impl_error_chain_processed` crate for guidance on how handle this unexpected cfg
[INFO] [stderr]    = help: the macro `impl_error_chain_processed` may come from an old version of the `error_chain` crate, try updating your dependency with `cargo update -p error_chain`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> crates/maple-lexer/src/lex.rs:109:40
[INFO] [stderr]     |
[INFO] [stderr] 109 |         Some(ch) if ch.is_digit(10) => return bail!("Identifiers can't start with a number"),
[INFO] [stderr]     |                                        ^^^^^^^----------------------------------------------
[INFO] [stderr]     |                                        |      |
[INFO] [stderr]     |                                        |      any code following this expression is unreachable
[INFO] [stderr]     |                                        unreachable expression
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> crates/maple-lexer/src/lex.rs:110:17
[INFO] [stderr]     |
[INFO] [stderr] 110 |         None => return bail!(ErrorKind::UnexpectedEOF),
[INFO] [stderr]     |                 ^^^^^^^-------------------------------
[INFO] [stderr]     |                 |      |
[INFO] [stderr]     |                 |      any code following this expression is unreachable
[INFO] [stderr]     |                 unreachable expression
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> crates/maple-lexer/src/lex.rs:224:13
[INFO] [stderr]     |
[INFO] [stderr] 208 |         '_' => (TokenKind::Underscore, 1),
[INFO] [stderr]     |         --- matches all the relevant values
[INFO] [stderr] ...
[INFO] [stderr] 224 |         c @ '_' | c if c.is_alphabetic() => tokenize_identifier(data)
[INFO] [stderr]     |             ^^^ no value can reach this
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `TokenKind` is never used
[INFO] [stderr]   --> crates/maple-lexer/src/lex.rs:11:10
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub enum TokenKind {
[INFO] [stderr]    |          ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `take_while` is never used
[INFO] [stderr]   --> crates/maple-lexer/src/lex.rs:84:4
[INFO] [stderr]    |
[INFO] [stderr] 84 | fn take_while<F>(data: &str, mut pred: F) -> Result<(&str, usize)>
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `tokenize_identifier` is never used
[INFO] [stderr]    --> crates/maple-lexer/src/lex.rs:106:4
[INFO] [stderr]     |
[INFO] [stderr] 106 | fn tokenize_identifier(data: &str) -> Result<(TokenKind, usize)> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `tokenize_number` is never used
[INFO] [stderr]    --> crates/maple-lexer/src/lex.rs:122:4
[INFO] [stderr]     |
[INFO] [stderr] 122 | fn tokenize_number(data: &str) -> Result<(TokenKind, usize)> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `skip_whitespace` is never used
[INFO] [stderr]    --> crates/maple-lexer/src/lex.rs:149:4
[INFO] [stderr]     |
[INFO] [stderr] 149 | fn skip_whitespace(data: &str) -> usize {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `skip_comments` is never used
[INFO] [stderr]    --> crates/maple-lexer/src/lex.rs:156:4
[INFO] [stderr]     |
[INFO] [stderr] 156 | fn skip_comments(src: &str) -> usize {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `skip_until` is never used
[INFO] [stderr]    --> crates/maple-lexer/src/lex.rs:169:4
[INFO] [stderr]     |
[INFO] [stderr] 169 | fn skip_until<'a>(mut src: &'a str, pattern: &str) -> &'a str {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `skip` is never used
[INFO] [stderr]    --> crates/maple-lexer/src/lex.rs:178:4
[INFO] [stderr]     |
[INFO] [stderr] 178 | fn skip(src: &str) -> usize {
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `tokenize_single_token` is never used
[INFO] [stderr]    --> crates/maple-lexer/src/lex.rs:194:8
[INFO] [stderr]     |
[INFO] [stderr] 194 | pub fn tokenize_single_token(data: &str) -> Result<(TokenKind, usize)> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Tokenizer` is never constructed
[INFO] [stderr]    --> crates/maple-lexer/src/lex.rs:232:8
[INFO] [stderr]     |
[INFO] [stderr] 232 | struct Tokenizer<'a> {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `next_token`, `skip_whitespace`, and `chomp` are never used
[INFO] [stderr]    --> crates/maple-lexer/src/lex.rs:238:8
[INFO] [stderr]     |
[INFO] [stderr] 237 | impl<'a> Tokenizer<'a> {
[INFO] [stderr]     | ---------------------- associated items in this implementation
[INFO] [stderr] 238 |     fn new(src: &str) -> Tokenizer {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 245 |     fn next_token(&mut self) -> Result<Option<(TokenKind, usize, usize)>> {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 260 |     fn skip_whitespace(&mut self) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 272 |     fn chomp(&mut self, num_bytes: usize) {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `tokenize` is never used
[INFO] [stderr]    --> crates/maple-lexer/src/lex.rs:283:8
[INFO] [stderr]     |
[INFO] [stderr] 283 | pub fn tokenize(src: &str) -> Result<Vec<(TokenKind, usize, usize)>> {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Token` is never constructed
[INFO] [stderr]    --> crates/maple-lexer/src/lex.rs:295:12
[INFO] [stderr]     |
[INFO] [stderr] 295 | pub struct Token {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]    --> crates/maple-lexer/src/lex.rs:306:12
[INFO] [stderr]     |
[INFO] [stderr] 303 | impl Token {
[INFO] [stderr]     | ---------- associated function in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 306 |     pub fn new<K: Into<TokenKind>>(span: Span, kind: K) -> Token {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Span` is never constructed
[INFO] [stderr]   --> crates/maple-lexer/src/codemap.rs:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub struct Span(usize);
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `dummy` is never used
[INFO] [stderr]   --> crates/maple-lexer/src/codemap.rs:24:19
[INFO] [stderr]    |
[INFO] [stderr] 21 | impl Span {
[INFO] [stderr]    | --------- associated function in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 24 |     pub(crate) fn dummy() -> Span {
[INFO] [stderr]    |                   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `CodeMap` is never constructed
[INFO] [stderr]   --> crates/maple-lexer/src/codemap.rs:31:12
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub struct CodeMap {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FileMap` is never constructed
[INFO] [stderr]   --> crates/maple-lexer/src/codemap.rs:39:12
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub struct FileMap {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `insert_file`, `lookup`, and `files` are never used
[INFO] [stderr]   --> crates/maple-lexer/src/codemap.rs:48:12
[INFO] [stderr]    |
[INFO] [stderr] 46 | impl CodeMap {
[INFO] [stderr]    | ------------ associated items in this implementation
[INFO] [stderr] 47 |     /// Create a new, empty `CodeMap`.
[INFO] [stderr] 48 |     pub fn new() -> CodeMap {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 55 |     pub fn insert_file<C, F>(&mut self, filename: F, contents: C) -> Rc<FileMap>
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 72 |     pub fn lookup(&self, span: Span) -> &str {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 84 |     pub fn files(&self) -> &[Rc<FileMap>] {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `filename`, `contents`, `lookup`, and `range_of` are never used
[INFO] [stderr]    --> crates/maple-lexer/src/codemap.rs:97:12
[INFO] [stderr]     |
[INFO] [stderr]  95 | impl FileMap {
[INFO] [stderr]     | ------------ methods in this implementation
[INFO] [stderr]  96 |     /// Get the name of this `FileMap`.
[INFO] [stderr]  97 |     pub fn filename(&self) -> &str {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 102 |     pub fn contents(&self) -> &str {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 113 |     pub fn lookup(&self, span: Span) -> Option<&str> {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 127 |     pub fn range_of(&self, span: Span) -> Option<Range<usize>> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `insert_span`, `reverse_lookup`, `merge`, and `register_tokens` are never used
[INFO] [stderr]    --> crates/maple-lexer/src/codemap.rs:143:12
[INFO] [stderr]     |
[INFO] [stderr] 132 | impl FileMap {
[INFO] [stderr]     | ------------ methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 143 |     pub fn insert_span(&self, start: usize, end: usize) -> Span {
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 169 |     fn reverse_lookup(&self, needle: &Range<usize>) -> Option<Span> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 181 |     pub fn merge(&self, first: Span, second: Span) -> Span {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 194 |     pub fn register_tokens(&self, tokens: Vec<(TokenKind, usize, usize)>) -> Vec<Token> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> crates/maple-lexer/src/lex.rs:238:17
[INFO] [stderr]     |
[INFO] [stderr] 238 |     fn new(src: &str) -> Tokenizer {
[INFO] [stderr]     |                 ^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 238 |     fn new(src: &str) -> Tokenizer<'_> {
[INFO] [stderr]     |                                   ++++
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Token` is never constructed
[INFO] [stderr]    --> crates/maple-lexer/src/lex.rs:295:12
[INFO] [stderr]     |
[INFO] [stderr] 295 | pub struct Token {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `files` is never used
[INFO] [stderr]   --> crates/maple-lexer/src/codemap.rs:84:12
[INFO] [stderr]    |
[INFO] [stderr] 46 | impl CodeMap {
[INFO] [stderr]    | ------------ method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 84 |     pub fn files(&self) -> &[Rc<FileMap>] {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `register_tokens` is never used
[INFO] [stderr]    --> crates/maple-lexer/src/codemap.rs:194:12
[INFO] [stderr]     |
[INFO] [stderr] 132 | impl FileMap {
[INFO] [stderr]     | ------------ method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 194 |     pub fn register_tokens(&self, tokens: Vec<(TokenKind, usize, usize)>) -> Vec<Token> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `maple-lexer` (lib) generated 26 warnings (run `cargo fix --lib -p maple-lexer` to apply 1 suggestion)
[INFO] [stderr] warning: `maple-lexer` (lib test) generated 9 warnings (6 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/maple_ir-bc11fe63c0447331)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/maple_lexer-ebc99af815ec6dca)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test codemap::tests::get_span_for_substring ... ok
[INFO] [stdout] test codemap::tests::join_multiple_spans ... ok
[INFO] [stdout] test codemap::tests::insert_a_file_into_a_codemap ... ok
[INFO] [stdout] test codemap::tests::spans_for_identical_ranges_are_identical ... ok
[INFO] [stdout] test lex::test::comment_skip_ignores_whitespace ... ok
[INFO] [stdout] test codemap::tests::spans_for_different_ranges_are_always_unique ... ok
[INFO] [stdout] test lex::test::comment_skip_ignores_alphanumeric ... ok
[INFO] [stdout] test lex::test::comment_skip_self_closed ... ok
[INFO] [stdout] test lex::test::slash_slash_skips_to_end_of_line ... ok
[INFO] [stdout] test lex::test::skip_past_several_whitespace_chars ... ok
[INFO] [stdout] test lex::test::tokenize_an_identifer ... ok
[INFO] [stdout] test lex::test::tokenize_ident_containing_an_underscore ... ok
[INFO] [stdout] test lex::test::tokenize_a_basic_expression ... ok
[INFO] [stdout] test lex::test::tokenize_a_single_letter ... ok
[INFO] [stdout] test lex::test::tokenizer_detects_invalid_stuff ... ok
[INFO] [stdout] test lex::test::skipping_whitespace_when_first_is_a_letter_returns_zero ... ok
[INFO] [stdout] test lex::test::tokenize_ident_cant_start_with_dot ... ok
[INFO] [stdout] test lex::test::tokenize_ident_cant_start_with_number ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests maple_ir
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests maple_lexer
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5161330d5f0057cf24512848c669984a4b761fecca49b04a202fe4747031f637", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5161330d5f0057cf24512848c669984a4b761fecca49b04a202fe4747031f637", kill_on_drop: false }`
[INFO] [stdout] 5161330d5f0057cf24512848c669984a4b761fecca49b04a202fe4747031f637
