[INFO] fetching crate glowdust 0.0.1...
[INFO] checking glowdust-0.0.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate glowdust 0.0.1 into /workspace/builds/worker-0-tc2/source
[INFO] removed /workspace/builds/worker-0-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate glowdust 0.0.1
[INFO] finished tweaking crates.io crate glowdust 0.0.1
[INFO] tweaked toml for crates.io crate glowdust 0.0.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate glowdust 0.0.1 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate glowdust 0.0.1 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b6712a9f01590c058f1a5e2082c28f151d9085a9264d9d2995c51c3b3160da1
[INFO] running `Command { std: "docker" "start" "-a" "5b6712a9f01590c058f1a5e2082c28f151d9085a9264d9d2995c51c3b3160da1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b6712a9f01590c058f1a5e2082c28f151d9085a9264d9d2995c51c3b3160da1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b6712a9f01590c058f1a5e2082c28f151d9085a9264d9d2995c51c3b3160da1", kill_on_drop: false }`
[INFO] [stdout] 5b6712a9f01590c058f1a5e2082c28f151d9085a9264d9d2995c51c3b3160da1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69da8f8795ab3887a66d1a568a192616f03dbf146d6309c736c6ff676009ef49
[INFO] running `Command { std: "docker" "start" "-a" "69da8f8795ab3887a66d1a568a192616f03dbf146d6309c736c6ff676009ef49", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]    Compiling semver v1.0.20
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking smallvec v1.11.1
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]    Compiling rustix v0.38.21
[INFO] [stderr]    Compiling phf_shared v0.11.2
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking linux-raw-sys v0.4.10
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]    Compiling heapless v0.7.16
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]    Compiling io-uring v0.6.3
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking home v0.5.5
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking fd-lock v4.0.2
[INFO] [stderr]     Checking serde-json-core v0.5.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling rustyline-derive v0.10.0
[INFO] [stderr]    Compiling phf_macros v0.11.2
[INFO] [stderr]    Compiling ctor v0.2.6
[INFO] [stderr]     Checking phf v0.11.2
[INFO] [stderr]     Checking rustyline v13.0.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking glowdust v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/compiler/cursor.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io;
[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: `tracing::trace`
[INFO] [stdout]  --> src/compiler/parser/parse_state.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tracing::trace;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `error` and `trace`
[INFO] [stdout]   --> src/compiler/parser/parser.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 | use tracing::{error, trace};
[INFO] [stdout]    |               ^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::runtime::disassembler::disassemble_no_lines`
[INFO] [stdout]   --> src/runtime/vm.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use crate::runtime::disassembler::disassemble_no_lines;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `used_linker`
[INFO] [stdout]   --> src/compiler/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     #[ctor::ctor]
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a attribute macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `ctor::ctor` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = help: the attribute macro `ctor::ctor` may come from an old version of the `ctor` crate, try updating your dependency with `cargo update -p ctor`
[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 attribute macro `ctor::ctor` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/compiler/cursor.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io;
[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: `tracing::trace`
[INFO] [stdout]  --> src/compiler/parser/parse_state.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tracing::trace;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `error` and `trace`
[INFO] [stdout]   --> src/compiler/parser/parser.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 | use tracing::{error, trace};
[INFO] [stdout]    |               ^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::runtime::disassembler::disassemble_no_lines`
[INFO] [stdout]   --> src/runtime/vm.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use crate::runtime::disassembler::disassemble_no_lines;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `vector_to_value`
[INFO] [stdout]   --> src/store/mod.rs:91:36
[INFO] [stdout]    |
[INFO] [stdout] 91 |     use crate::{empty_tuple_value, vector_to_value};
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(let_chains)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/store/csv/uring.rs:4:33
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{Error, ErrorKind, Read, Result};
[INFO] [stdout]   |                                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/store/csv/uring.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mut source = OpenOptions::new().read(true).open(source)?;
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `assumed_offset`
[INFO] [stdout]   --> src/store/csv/uring.rs:77:21
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 let assumed_offset = cqe.user_data();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_assumed_offset`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `length` is never read
[INFO] [stdout]    --> src/compiler/parser/ast.rs:203:16
[INFO] [stdout]     |
[INFO] [stdout] 200 | pub struct Span {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 203 |     pub(crate) length: usize,
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Span` has derived impls for the traits `Clone` and `Debug`, 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: field `name` is never read
[INFO] [stdout]   --> src/compiler/query_solver.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Call {
[INFO] [stdout]    |     ---- field in this variant
[INFO] [stdout] 29 |         name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompiledCursor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cursor_id` is never read
[INFO] [stdout]    --> src/compiler/query_solver.rs:362:5
[INFO] [stdout]     |
[INFO] [stdout] 360 | struct CallFrame {
[INFO] [stdout]     |        --------- field in this struct
[INFO] [stdout] 361 |     // the cursor id for this cursor. incremented externally, used for the OpCloseCursor in the epilogue
[INFO] [stdout] 362 |     cursor_id: u8,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_value` is never used
[INFO] [stdout]    --> src/compiler/value.rs:441:23
[INFO] [stdout]     |
[INFO] [stdout] 434 |     impl FunctionValuesObject {
[INFO] [stdout]     |     ------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 441 |         pub(crate) fn set_value(&mut self, domain_value: Vec<Value>, codomain_value: Value) {
[INFO] [stdout]     |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `dump_stack` is never used
[INFO] [stdout]    --> src/runtime/vm.rs:235:8
[INFO] [stdout]     |
[INFO] [stdout]  63 | impl VirtualMachine {
[INFO] [stdout]     | ------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 235 |     fn dump_stack(stack: &[Value]) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CsvInput` is never constructed
[INFO] [stdout]   --> src/store/csv/mod.rs:11:19
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub(crate) struct CsvInput {
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/store/csv/mod.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl CsvInput {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 17 |     pub fn new(function_name: &str, file_name: PathBuf) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UringReader` is never constructed
[INFO] [stdout]  --> src/store/csv/uring.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct UringReader {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_blocksize`, and `read` are never used
[INFO] [stdout]   --> src/store/csv/uring.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl UringReader {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 15 |     pub fn new(source: &PathBuf, blocksize: u32) -> Result<Self> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn get_blocksize(&self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn read(&mut self, buffer: &mut [u8], offset: u64) -> Result<usize> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/compiler/parser/parser.rs:432:21
[INFO] [stdout]     |
[INFO] [stdout] 432 |                     parser.previous.value.parse::<String>().unwrap(),
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/store/csv/mod.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         self.reader.seek(SeekFrom::Start(0));
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let _ = self.reader.seek(SeekFrom::Start(0));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `glowdust` (lib) due to 1 previous error; 18 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/store/csv/uring.rs:4:33
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{Error, ErrorKind, Read, Result};
[INFO] [stdout]   |                                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/store/csv/uring.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mut source = OpenOptions::new().read(true).open(source)?;
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `assumed_offset`
[INFO] [stdout]   --> src/store/csv/uring.rs:77:21
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 let assumed_offset = cqe.user_data();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_assumed_offset`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `length` is never read
[INFO] [stdout]    --> src/compiler/parser/ast.rs:203:16
[INFO] [stdout]     |
[INFO] [stdout] 200 | pub struct Span {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 203 |     pub(crate) length: usize,
[INFO] [stdout]     |                ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Span` has derived impls for the traits `Clone` and `Debug`, 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: field `name` is never read
[INFO] [stdout]   --> src/compiler/query_solver.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Call {
[INFO] [stdout]    |     ---- field in this variant
[INFO] [stdout] 29 |         name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompiledCursor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cursor_id` is never read
[INFO] [stdout]    --> src/compiler/query_solver.rs:362:5
[INFO] [stdout]     |
[INFO] [stdout] 360 | struct CallFrame {
[INFO] [stdout]     |        --------- field in this struct
[INFO] [stdout] 361 |     // the cursor id for this cursor. incremented externally, used for the OpCloseCursor in the epilogue
[INFO] [stdout] 362 |     cursor_id: u8,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `dump_stack` is never used
[INFO] [stdout]    --> src/runtime/vm.rs:235:8
[INFO] [stdout]     |
[INFO] [stdout]  63 | impl VirtualMachine {
[INFO] [stdout]     | ------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 235 |     fn dump_stack(stack: &[Value]) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CsvInput` is never constructed
[INFO] [stdout]   --> src/store/csv/mod.rs:11:19
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub(crate) struct CsvInput {
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/store/csv/mod.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl CsvInput {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 17 |     pub fn new(function_name: &str, file_name: PathBuf) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UringReader` is never constructed
[INFO] [stdout]  --> src/store/csv/uring.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct UringReader {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_blocksize`, and `read` are never used
[INFO] [stdout]   --> src/store/csv/uring.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl UringReader {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 15 |     pub fn new(source: &PathBuf, blocksize: u32) -> Result<Self> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn get_blocksize(&self) -> u32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn read(&mut self, buffer: &mut [u8], offset: u64) -> Result<usize> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/compiler/parser/parser.rs:432:21
[INFO] [stdout]     |
[INFO] [stdout] 432 |                     parser.previous.value.parse::<String>().unwrap(),
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/store/csv/mod.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         self.reader.seek(SeekFrom::Start(0));
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let _ = self.reader.seek(SeekFrom::Start(0));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `glowdust` (lib test) due to 1 previous error; 19 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "69da8f8795ab3887a66d1a568a192616f03dbf146d6309c736c6ff676009ef49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69da8f8795ab3887a66d1a568a192616f03dbf146d6309c736c6ff676009ef49", kill_on_drop: false }`
[INFO] [stdout] 69da8f8795ab3887a66d1a568a192616f03dbf146d6309c736c6ff676009ef49
