[INFO] cloning repository https://github.com/NitantP/loxt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NitantP/loxt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNitantP%2Floxt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNitantP%2Floxt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cbec03a4ed7beb6a699cb7e92a019a4dd1a14fde
[INFO] checking NitantP/loxt against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNitantP%2Floxt" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/NitantP/loxt
[INFO] finished tweaking git repo https://github.com/NitantP/loxt
[INFO] tweaked toml for git repo https://github.com/NitantP/loxt written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/NitantP/loxt on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/NitantP/loxt 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded toml_datetime v0.6.2
[INFO] [stderr]   Downloaded toml_edit v0.19.10
[INFO] [stderr]   Downloaded proc-macro2 v1.0.60
[INFO] [stderr]   Downloaded winnow v0.4.7
[INFO] [stderr]   Downloaded syn v2.0.18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98998ff262c09a78733d538eb95ade4c3e9cf6afa46f6d5d00ef0aae6a7bd233
[INFO] running `Command { std: "docker" "start" "-a" "98998ff262c09a78733d538eb95ade4c3e9cf6afa46f6d5d00ef0aae6a7bd233", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98998ff262c09a78733d538eb95ade4c3e9cf6afa46f6d5d00ef0aae6a7bd233", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98998ff262c09a78733d538eb95ade4c3e9cf6afa46f6d5d00ef0aae6a7bd233", kill_on_drop: false }`
[INFO] [stdout] 98998ff262c09a78733d538eb95ade4c3e9cf6afa46f6d5d00ef0aae6a7bd233
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23235cc06f70fc24700b3ad4de952a948d84e6631e78abfee61d729c6714c3d8
[INFO] running `Command { std: "docker" "start" "-a" "23235cc06f70fc24700b3ad4de952a948d84e6631e78abfee61d729c6714c3d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.60
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling toml_datetime v0.6.2
[INFO] [stderr]    Compiling winnow v0.4.7
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]    Compiling toml_edit v0.19.10
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling num_enum_derive v0.6.1
[INFO] [stderr]     Checking num_enum v0.6.1
[INFO] [stderr]     Checking loxt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `args`
[INFO] [stdout]  --> src/main.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 |     env::{self, args}, fs,
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `args`
[INFO] [stdout]  --> src/main.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 |     env::{self, args}, fs,
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_assign`
[INFO] [stdout]     --> src/main.rs:1893:26
[INFO] [stdout]      |
[INFO] [stdout] 1893 |     fn number(&mut self, can_assign: bool) {
[INFO] [stdout]      |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_assign`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_assign`
[INFO] [stdout]     --> src/main.rs:1908:28
[INFO] [stdout]      |
[INFO] [stdout] 1908 |     fn grouping(&mut self, can_assign: bool) {
[INFO] [stdout]      |                            ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_assign`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_assign`
[INFO] [stdout]     --> src/main.rs:1913:25
[INFO] [stdout]      |
[INFO] [stdout] 1913 |     fn unary(&mut self, can_assign: bool) {
[INFO] [stdout]      |                         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_assign`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_assign`
[INFO] [stdout]     --> src/main.rs:1925:26
[INFO] [stdout]      |
[INFO] [stdout] 1925 |     fn binary(&mut self, can_assign: bool) {
[INFO] [stdout]      |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_assign`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_assign`
[INFO] [stdout]     --> src/main.rs:1951:24
[INFO] [stdout]      |
[INFO] [stdout] 1951 |     fn call(&mut self, can_assign: bool) {
[INFO] [stdout]      |                        ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_assign`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_assign`
[INFO] [stdout]     --> src/main.rs:1893:26
[INFO] [stdout]      |
[INFO] [stdout] 1893 |     fn number(&mut self, can_assign: bool) {
[INFO] [stdout]      |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_assign`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_assign`
[INFO] [stdout]     --> src/main.rs:1908:28
[INFO] [stdout]      |
[INFO] [stdout] 1908 |     fn grouping(&mut self, can_assign: bool) {
[INFO] [stdout]      |                            ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_assign`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_assign`
[INFO] [stdout]     --> src/main.rs:1913:25
[INFO] [stdout]      |
[INFO] [stdout] 1913 |     fn unary(&mut self, can_assign: bool) {
[INFO] [stdout]      |                         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_assign`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_assign`
[INFO] [stdout]     --> src/main.rs:1925:26
[INFO] [stdout]      |
[INFO] [stdout] 1925 |     fn binary(&mut self, can_assign: bool) {
[INFO] [stdout]      |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_assign`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_assign`
[INFO] [stdout]     --> src/main.rs:1951:24
[INFO] [stdout]      |
[INFO] [stdout] 1951 |     fn call(&mut self, can_assign: bool) {
[INFO] [stdout]      |                        ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_assign`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_assign`
[INFO] [stdout]     --> src/main.rs:1973:27
[INFO] [stdout]      |
[INFO] [stdout] 1973 |     fn literal(&mut self, can_assign: bool) {
[INFO] [stdout]      |                           ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_assign`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_assign`
[INFO] [stdout]     --> src/main.rs:1984:26
[INFO] [stdout]      |
[INFO] [stdout] 1984 |     fn string(&mut self, can_assign: bool) {
[INFO] [stdout]      |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_assign`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_assign`
[INFO] [stdout]     --> src/main.rs:1994:24
[INFO] [stdout]      |
[INFO] [stdout] 1994 |     fn this(&mut self, can_assign: bool) {
[INFO] [stdout]      |                        ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_assign`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_assign`
[INFO] [stdout]     --> src/main.rs:1973:27
[INFO] [stdout]      |
[INFO] [stdout] 1973 |     fn literal(&mut self, can_assign: bool) {
[INFO] [stdout]      |                           ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_assign`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_assign`
[INFO] [stdout]     --> src/main.rs:2054:23
[INFO] [stdout]      |
[INFO] [stdout] 2054 |     fn and(&mut self, can_assign: bool) {
[INFO] [stdout]      |                       ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_assign`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_assign`
[INFO] [stdout]     --> src/main.rs:1984:26
[INFO] [stdout]      |
[INFO] [stdout] 1984 |     fn string(&mut self, can_assign: bool) {
[INFO] [stdout]      |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_assign`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_assign`
[INFO] [stdout]     --> src/main.rs:1994:24
[INFO] [stdout]      |
[INFO] [stdout] 1994 |     fn this(&mut self, can_assign: bool) {
[INFO] [stdout]      |                        ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_assign`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_assign`
[INFO] [stdout]     --> src/main.rs:2063:22
[INFO] [stdout]      |
[INFO] [stdout] 2063 |     fn or(&mut self, can_assign: bool) {
[INFO] [stdout]      |                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_assign`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_assign`
[INFO] [stdout]     --> src/main.rs:2054:23
[INFO] [stdout]      |
[INFO] [stdout] 2054 |     fn and(&mut self, can_assign: bool) {
[INFO] [stdout]      |                       ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_assign`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `can_assign`
[INFO] [stdout]     --> src/main.rs:2063:22
[INFO] [stdout]      |
[INFO] [stdout] 2063 |     fn or(&mut self, can_assign: bool) {
[INFO] [stdout]      |                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_can_assign`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arg_count`
[INFO] [stdout]     --> src/main.rs:2508:10
[INFO] [stdout]      |
[INFO] [stdout] 2508 | fn clock(arg_count: usize) -> Value {
[INFO] [stdout]      |          ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arg_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arg_count`
[INFO] [stdout]     --> src/main.rs:2508:10
[INFO] [stdout]      |
[INFO] [stdout] 2508 | fn clock(arg_count: usize) -> Value {
[INFO] [stdout]      |          ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arg_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Function` is never constructed
[INFO] [stdout]   --> src/main.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 48 | enum Value {
[INFO] [stdout]    |      ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 53 |     Function(usize),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Value` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `as_instance_idx` is never used
[INFO] [stdout]    --> src/main.rs:117:4
[INFO] [stdout]     |
[INFO] [stdout] 117 | fn as_instance_idx(value: Value) -> usize {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_closure` is never used
[INFO] [stdout]    --> src/main.rs:152:4
[INFO] [stdout]     |
[INFO] [stdout] 152 | fn is_closure(value: &Value) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `num_upvalues` is never read
[INFO] [stdout]    --> src/main.rs:304:5
[INFO] [stdout]     |
[INFO] [stdout] 301 | struct Closure {
[INFO] [stdout]     |        ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 304 |     num_upvalues: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_chunk_mut` is never used
[INFO] [stdout]    --> src/main.rs:459:8
[INFO] [stdout]     |
[INFO] [stdout] 401 | impl VM {
[INFO] [stdout]     | ------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 459 |     fn get_chunk_mut(&mut self) -> &Chunk {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `start` and `length` are never read
[INFO] [stdout]     --> src/main.rs:1103:5
[INFO] [stdout]      |
[INFO] [stdout] 1101 | struct Token<'token> {
[INFO] [stdout]      |        ----- fields in this struct
[INFO] [stdout] 1102 |     r#type: TokenType,
[INFO] [stdout] 1103 |     start: usize,
[INFO] [stdout]      |     ^^^^^
[INFO] [stdout] 1104 |     length: usize,
[INFO] [stdout]      |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `enclosing` is never read
[INFO] [stdout]     --> src/main.rs:2110:5
[INFO] [stdout]      |
[INFO] [stdout] 2109 | struct CompilationClass {
[INFO] [stdout]      |        ---------------- field in this struct
[INFO] [stdout] 2110 |     enclosing: Option<Box<CompilationClass>>,
[INFO] [stdout]      |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Function` is never constructed
[INFO] [stdout]   --> src/main.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 48 | enum Value {
[INFO] [stdout]    |      ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 53 |     Function(usize),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Value` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `as_instance_idx` is never used
[INFO] [stdout]    --> src/main.rs:117:4
[INFO] [stdout]     |
[INFO] [stdout] 117 | fn as_instance_idx(value: Value) -> usize {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_closure` is never used
[INFO] [stdout]    --> src/main.rs:152:4
[INFO] [stdout]     |
[INFO] [stdout] 152 | fn is_closure(value: &Value) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `num_upvalues` is never read
[INFO] [stdout]    --> src/main.rs:304:5
[INFO] [stdout]     |
[INFO] [stdout] 301 | struct Closure {
[INFO] [stdout]     |        ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 304 |     num_upvalues: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_chunk_mut` is never used
[INFO] [stdout]    --> src/main.rs:459:8
[INFO] [stdout]     |
[INFO] [stdout] 401 | impl VM {
[INFO] [stdout]     | ------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 459 |     fn get_chunk_mut(&mut self) -> &Chunk {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]     --> src/main.rs:2016:20
[INFO] [stdout]      |
[INFO] [stdout] 2016 |                 if arg_count > 255 {
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `start` and `length` are never read
[INFO] [stdout]     --> src/main.rs:1103:5
[INFO] [stdout]      |
[INFO] [stdout] 1101 | struct Token<'token> {
[INFO] [stdout]      |        ----- fields in this struct
[INFO] [stdout] 1102 |     r#type: TokenType,
[INFO] [stdout] 1103 |     start: usize,
[INFO] [stdout]      |     ^^^^^
[INFO] [stdout] 1104 |     length: usize,
[INFO] [stdout]      |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `enclosing` is never read
[INFO] [stdout]     --> src/main.rs:2110:5
[INFO] [stdout]      |
[INFO] [stdout] 2109 | struct CompilationClass {
[INFO] [stdout]      |        ---------------- field in this struct
[INFO] [stdout] 2110 |     enclosing: Option<Box<CompilationClass>>,
[INFO] [stdout]      |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]     --> src/main.rs:2016:20
[INFO] [stdout]      |
[INFO] [stdout] 2016 |                 if arg_count > 255 {
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.35s
[INFO] running `Command { std: "docker" "inspect" "23235cc06f70fc24700b3ad4de952a948d84e6631e78abfee61d729c6714c3d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23235cc06f70fc24700b3ad4de952a948d84e6631e78abfee61d729c6714c3d8", kill_on_drop: false }`
[INFO] [stdout] 23235cc06f70fc24700b3ad4de952a948d84e6631e78abfee61d729c6714c3d8