[INFO] cloning repository https://github.com/probably-neb/funk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/probably-neb/funk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprobably-neb%2Ffunk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprobably-neb%2Ffunk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e1cb1c5dc0654b090abcb548671087419bbce22d
[INFO] testing probably-neb/funk against 1.90.0 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprobably-neb%2Ffunk" "/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/probably-neb/funk
[INFO] finished tweaking git repo https://github.com/probably-neb/funk
[INFO] tweaked toml for git repo https://github.com/probably-neb/funk written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/probably-neb/funk on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/probably-neb/funk 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" "+1.90.0" "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 bytemuck v1.14.3
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 632c8977a0f9b34a8aa60dbe3e31674fa272fe0645dc414d8b8823fc63a74e89
[INFO] running `Command { std: "docker" "start" "-a" "632c8977a0f9b34a8aa60dbe3e31674fa272fe0645dc414d8b8823fc63a74e89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "632c8977a0f9b34a8aa60dbe3e31674fa272fe0645dc414d8b8823fc63a74e89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "632c8977a0f9b34a8aa60dbe3e31674fa272fe0645dc414d8b8823fc63a74e89", kill_on_drop: false }`
[INFO] [stdout] 632c8977a0f9b34a8aa60dbe3e31674fa272fe0645dc414d8b8823fc63a74e89
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90eb3eec863018b97d5d01800640cb3f6bdde04aa5796970e72660e42de73069
[INFO] running `Command { std: "docker" "start" "-a" "90eb3eec863018b97d5d01800640cb3f6bdde04aa5796970e72660e42de73069", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]    Compiling phf_shared v0.11.2
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling phf_macros v0.11.2
[INFO] [stderr]    Compiling bytemuck_derive v1.5.0
[INFO] [stderr]    Compiling phf v0.11.2
[INFO] [stderr]    Compiling bytemuck v1.14.3
[INFO] [stderr]    Compiling funk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Range`
[INFO] [stdout]  --> src/parser.rs:4:40
[INFO] [stdout]   |
[INFO] [stdout] 4 |     ast::{self, Ast, DIndex, DataPool, Range},
[INFO] [stdout]   |                                        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `visit`
[INFO] [stdout]   --> src/ast/stringify.rs:77:18
[INFO] [stdout]    |
[INFO] [stdout] 77 |     macro_rules! visit {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Expr::*`
[INFO] [stdout]   --> src/ast/stringify.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |     use Expr::*;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Range`
[INFO] [stdout]  --> src/compiler.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::ast::{Ast, DIndex, Range};
[INFO] [stdout]   |                               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `utf8_str`
[INFO] [stdout]   --> src/utils.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 | macro_rules! utf8_str {
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `utf8_str`
[INFO] [stdout]   --> src/utils.rs:19:16
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub(crate) use utf8_str;
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/ast/stringify.rs:92:25
[INFO] [stdout]    |
[INFO] [stdout] 92 |         Expr::FunCall { name, args, .. } => {
[INFO] [stdout]    |                         ^^^^-
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         help: try removing the field
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> src/ast/stringify.rs:109:22
[INFO] [stdout]     |
[INFO] [stdout] 109 |             for (i, &expr) in ast.extra.indexed_iter_of(branch_true, &ast.exprs) {
[INFO] [stdout]     |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> src/ast/stringify.rs:119:22
[INFO] [stdout]     |
[INFO] [stdout] 119 |             for (i, &expr) in ast.extra.indexed_iter_of(branch_false, &ast.exprs) {
[INFO] [stdout]     |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> src/ast/stringify.rs:174:22
[INFO] [stdout]     |
[INFO] [stdout] 174 |             for (i, &expr) in ast.extra.indexed_iter_of(body, &ast.exprs) {
[INFO] [stdout]     |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `s` is never read
[INFO] [stdout]   --> src/ast/typecheck.rs:33:25
[INFO] [stdout]    |
[INFO] [stdout] 33 |                 let mut s = "".to_string();
[INFO] [stdout]    |                         ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/ast/typecheck.rs:600:13
[INFO] [stdout]     |
[INFO] [stdout] 600 |         let i = self.indices.len();
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `next_i`, `fun_args_slice`, `fun_arg_names_iter`, and `get_ident` are never used
[INFO] [stdout]    --> src/parser.rs:171:8
[INFO] [stdout]     |
[INFO] [stdout]  59 | impl<'a> Parser<'a> {
[INFO] [stdout]     | ------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 171 |     fn next_i(&self) -> EIndex {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 479 |     fn fun_args_slice<'s>(&'s self, i: XIndex) -> &'s [u32] {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 483 |     fn fun_arg_names_iter<'s>(&'s self, i: XIndex) -> impl Iterator<Item = &'s str> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 490 |     fn get_ident<'s>(&'s self, i: usize) -> &'s str {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `fun_args_slice`, `fun_arg_names_iter`, and `print` are never used
[INFO] [stdout]   --> src/ast.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl Ast {
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn fun_args_slice<'s>(&'s self, i: XIndex) -> &'s [u32] {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub fn fun_arg_names_iter<'s>(&'s self, i: XIndex) -> impl Iterator<Item = &'s str> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn print(&self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_ident_id` is never used
[INFO] [stdout]    --> src/ast.rs:200:12
[INFO] [stdout]     |
[INFO] [stdout] 174 | impl DataPool {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 200 |     pub fn get_ident_id(&self, val: &str) -> Option<DIndex> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/ast.rs:297:11
[INFO] [stdout]     |
[INFO] [stdout] 296 | impl Extra {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout] 297 |     const RESERVE_VALUE: ExtraData = ExtraData::MAX;
[INFO] [stdout]     |           ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 303 |     pub fn get<'e, T: FromExtra<'e>>(&'e self, i: usize) -> T {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 307 |     pub fn reserve(&mut self) -> usize {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 317 |     pub fn append_u32(&mut self, val: ExtraData) -> u32 {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 360 |     pub fn iter_of<'a, T>(&'a self, i: usize, items: &'a [T]) -> impl Iterator<Item = &'a T> + 'a {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 364 |     pub fn first_of(&self, i: usize) -> ExtraData {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 376 |     pub fn fun_args_slice(&self, i: XIndex) -> &[u32] {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 380 |     pub fn fun_num_args(&self, i: XIndex) -> u32 {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `FromExtra` is never used
[INFO] [stdout]    --> src/ast.rs:411:11
[INFO] [stdout]     |
[INFO] [stdout] 411 | pub trait FromExtra<'e> {
[INFO] [stdout]     |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ExtraFunArgs` is never constructed
[INFO] [stdout]    --> src/ast.rs:415:12
[INFO] [stdout]     |
[INFO] [stdout] 415 | pub struct ExtraFunArgs<'e> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Range` is never constructed
[INFO] [stdout]    --> src/ast.rs:430:12
[INFO] [stdout]     |
[INFO] [stdout] 430 | pub struct Range<T: TryFrom<u32> + Copy> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/ast.rs:437:12
[INFO] [stdout]     |
[INFO] [stdout] 436 | impl Range<usize> {
[INFO] [stdout]     | ----------------- associated items in this implementation
[INFO] [stdout] 437 |     pub fn new(start: usize, end: usize) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 443 |     pub fn start_i(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 447 |     pub fn end_i(&self) -> usize {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 451 |     pub fn tup(&self) -> (u32, u32) {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 454 |     pub fn tup_i(&self) -> (usize, usize) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 458 |     pub fn range(&self) -> std::ops::Range<usize> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 462 |     pub fn slice<'a, T>(&self, data: &'a [T]) -> &'a [T] {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Gib` is never constructed
[INFO] [stdout]    --> src/ast/typecheck.rs:158:5
[INFO] [stdout]     |
[INFO] [stdout] 156 | enum ReturnPath {
[INFO] [stdout]     |      ---------- variant in this enum
[INFO] [stdout] 157 |     Naked,
[INFO] [stdout] 158 |     Gib,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ReturnPath` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_from` is never used
[INFO] [stdout]    --> src/ast/typecheck.rs:519:8
[INFO] [stdout]     |
[INFO] [stdout] 512 | impl ScopeList {
[INFO] [stdout]     | -------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 519 |     fn new_from(names: Vec<DIndex>, indices: Vec<EIndex>) -> Self {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `start_new` and `end` are never used
[INFO] [stdout]    --> src/ast/typecheck.rs:585:8
[INFO] [stdout]     |
[INFO] [stdout] 562 | impl ScopeStack {
[INFO] [stdout]     | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 585 |     fn start_new(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 590 |     fn end(&mut self) {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Mov` is never constructed
[INFO] [stdout]   --> src/compiler.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub enum ByteCode {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 10 |     Mov(u32),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ByteCode` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `dbg_visited` is never used
[INFO] [stdout]   --> src/compiler.rs:98:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl Compiler {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 98 |     fn dbg_visited(&self) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `skip`, `start_subscope`, `end_subscope`, and `is_last` are never used
[INFO] [stdout]    --> src/compiler.rs:449:8
[INFO] [stdout]     |
[INFO] [stdout] 437 | impl ScopeStack {
[INFO] [stdout]     | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 449 |     fn skip<const N: usize>(&mut self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 456 |     fn start_subscope(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 461 |     fn end_subscope(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 500 |     fn is_last(&self, i: u32) -> bool {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser.rs:242:17
[INFO] [stdout]     |
[INFO] [stdout] 242 |                 eat!(self, Token::LParen, "print expects arguments");
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 242 |                 let _ = eat!(self, Token::LParen, "print expects arguments");
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser.rs:246:17
[INFO] [stdout]     |
[INFO] [stdout] 246 |                 eat!(self, Token::RParen, "print expects RParen");
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 246 |                 let _ = eat!(self, Token::RParen, "print expects RParen");
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.67s
[INFO] running `Command { std: "docker" "inspect" "90eb3eec863018b97d5d01800640cb3f6bdde04aa5796970e72660e42de73069", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90eb3eec863018b97d5d01800640cb3f6bdde04aa5796970e72660e42de73069", kill_on_drop: false }`
[INFO] [stdout] 90eb3eec863018b97d5d01800640cb3f6bdde04aa5796970e72660e42de73069
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0455df516adc943c8fcd187dd17506757eb43df3d4ae5af19ed90b9bbf8f8743
[INFO] running `Command { std: "docker" "start" "-a" "0455df516adc943c8fcd187dd17506757eb43df3d4ae5af19ed90b9bbf8f8743", kill_on_drop: false }`
[INFO] [stderr]    Compiling funk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Range`
[INFO] [stdout]  --> src/parser.rs:4:40
[INFO] [stdout]   |
[INFO] [stdout] 4 |     ast::{self, Ast, DIndex, DataPool, Range},
[INFO] [stdout]   |                                        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `visit`
[INFO] [stdout]   --> src/ast/stringify.rs:77:18
[INFO] [stdout]    |
[INFO] [stdout] 77 |     macro_rules! visit {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Expr::*`
[INFO] [stdout]   --> src/ast/stringify.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |     use Expr::*;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Range`
[INFO] [stdout]  --> src/compiler.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::ast::{Ast, DIndex, Range};
[INFO] [stdout]   |                               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `utf8_str`
[INFO] [stdout]   --> src/utils.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 | macro_rules! utf8_str {
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `utf8_str`
[INFO] [stdout]   --> src/utils.rs:19:16
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub(crate) use utf8_str;
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0063]: missing field `data` in initializer of `compiler::Chunk`
[INFO] [stdout]    --> src/rt.rs:194:21
[INFO] [stdout]     |
[INFO] [stdout] 194 |         let chunk = Chunk { ops: bytecode };
[INFO] [stdout]     |                     ^^^^^ missing `data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0063]: missing field `data` in initializer of `compiler::Chunk`
[INFO] [stdout]    --> src/rt.rs:265:21
[INFO] [stdout]     |
[INFO] [stdout] 265 |         let chunk = Chunk {
[INFO] [stdout]     |                     ^^^^^ missing `data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/ast/stringify.rs:92:25
[INFO] [stdout]    |
[INFO] [stdout] 92 |         Expr::FunCall { name, args, .. } => {
[INFO] [stdout]    |                         ^^^^-
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         help: try removing the field
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> src/ast/stringify.rs:109:22
[INFO] [stdout]     |
[INFO] [stdout] 109 |             for (i, &expr) in ast.extra.indexed_iter_of(branch_true, &ast.exprs) {
[INFO] [stdout]     |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> src/ast/stringify.rs:119:22
[INFO] [stdout]     |
[INFO] [stdout] 119 |             for (i, &expr) in ast.extra.indexed_iter_of(branch_false, &ast.exprs) {
[INFO] [stdout]     |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> src/ast/stringify.rs:174:22
[INFO] [stdout]     |
[INFO] [stdout] 174 |             for (i, &expr) in ast.extra.indexed_iter_of(body, &ast.exprs) {
[INFO] [stdout]     |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `s` is never read
[INFO] [stdout]   --> src/ast/typecheck.rs:33:25
[INFO] [stdout]    |
[INFO] [stdout] 33 |                 let mut s = "".to_string();
[INFO] [stdout]    |                         ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/ast/typecheck.rs:600:13
[INFO] [stdout]     |
[INFO] [stdout] 600 |         let i = self.indices.len();
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0063`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `funk` (bin "funk" test) due to 2 previous errors; 12 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "0455df516adc943c8fcd187dd17506757eb43df3d4ae5af19ed90b9bbf8f8743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0455df516adc943c8fcd187dd17506757eb43df3d4ae5af19ed90b9bbf8f8743", kill_on_drop: false }`
[INFO] [stdout] 0455df516adc943c8fcd187dd17506757eb43df3d4ae5af19ed90b9bbf8f8743
