[INFO] fetching crate syntaqlite 0.12.1...
[INFO] testing syntaqlite-0.12.1 against 1.99.0-beta.8 for beta-1.100-2
[INFO] extracting crate syntaqlite 0.12.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate syntaqlite 0.12.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate syntaqlite 0.12.1
[INFO] tweaked toml for crates.io crate syntaqlite 0.12.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate syntaqlite 0.12.1 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate syntaqlite 0.12.1 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fluent-uri v0.1.4
[INFO] [stderr]   Downloaded syntaqlite-common v0.12.1
[INFO] [stderr]   Downloaded lsp-server v0.7.9
[INFO] [stderr]   Downloaded lsp-types v0.97.0
[INFO] [stderr]   Downloaded syntaqlite-syntax v0.12.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] a273f0c6fba52a60085e6a212f472cc74f055ad56c7f13f65e79d0cba8b60b8a
[INFO] running `Command { std: "docker" "start" "a273f0c6fba52a60085e6a212f472cc74f055ad56c7f13f65e79d0cba8b60b8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a273f0c6fba52a60085e6a212f472cc74f055ad56c7f13f65e79d0cba8b60b8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a273f0c6fba52a60085e6a212f472cc74f055ad56c7f13f65e79d0cba8b60b8a" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a273f0c6fba52a60085e6a212f472cc74f055ad56c7f13f65e79d0cba8b60b8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a273f0c6fba52a60085e6a212f472cc74f055ad56c7f13f65e79d0cba8b60b8a" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.2.55
[INFO] [stderr]    Compiling syntaqlite v0.12.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syntaqlite-common v0.12.1
[INFO] [stderr]    Compiling syntaqlite-syntax v0.12.1
[INFO] [stdout] warning: methods `all_column_names` and `function_signature` are never used
[INFO] [stdout]     --> src/analysis/catalog.rs:1047:19
[INFO] [stdout]      |
[INFO] [stdout]  542 | impl Catalog {
[INFO] [stdout]      | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1047 |     pub(crate) fn all_column_names(&self, table: Option<&str>) -> Vec<String> {
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1064 |     pub(crate) fn function_signature(
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `CompletionContext` is never used
[INFO] [stdout]   --> src/analysis/completion.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub(crate) enum CompletionContext {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_parser` is never used
[INFO] [stdout]   --> src/analysis/completion.rs:33:19
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl CompletionContext {
[INFO] [stdout]    | ---------------------- associated function in this implementation
[INFO] [stdout] 33 |     pub(crate) fn from_parser(v: syntaqlite_syntax::CompletionContext) -> Self {
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CompletionInfo` is never constructed
[INFO] [stdout]   --> src/analysis/completion.rs:44:19
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub(crate) struct CompletionInfo {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `completion_info` is never used
[INFO] [stdout]   --> src/analysis/completion.rs:52:15
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub(crate) fn completion_info(
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `detect_qualifier` is never used
[INFO] [stdout]    --> src/analysis/completion.rs:112:4
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn detect_qualifier(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `completion_boundary` is never used
[INFO] [stdout]    --> src/analysis/completion.rs:138:4
[INFO] [stdout]     |
[INFO] [stdout] 138 | fn completion_boundary(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `statement_token_start` is never used
[INFO] [stdout]    --> src/analysis/completion.rs:172:4
[INFO] [stdout]     |
[INFO] [stdout] 172 | fn statement_token_start(tokens: &[StoredToken], boundary: usize) -> usize {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `merge_expected_tokens` is never used
[INFO] [stdout]    --> src/analysis/completion.rs:180:4
[INFO] [stdout]     |
[INFO] [stdout] 180 | fn merge_expected_tokens(into: &mut Vec<AnyTokenType>, extra: Vec<AnyTokenType>) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SignatureHelpInfo` is never constructed
[INFO] [stdout]    --> src/analysis/completion.rs:193:19
[INFO] [stdout]     |
[INFO] [stdout] 193 | pub(crate) struct SignatureHelpInfo {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_enclosing_call` is never used
[INFO] [stdout]    --> src/analysis/completion.rs:203:15
[INFO] [stdout]     |
[INFO] [stdout] 203 | pub(crate) fn find_enclosing_call(
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `with_macro_fallback` and `dialect` are never used
[INFO] [stdout]    --> src/analysis/engine/mod.rs:117:19
[INFO] [stdout]     |
[INFO] [stdout]  75 | impl Analyzer {
[INFO] [stdout]     | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 117 |     pub(crate) fn with_macro_fallback(mut self, enabled: bool) -> Self {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub(crate) fn dialect(&self) -> AnyDialect {
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StoredToken` is never constructed
[INFO] [stdout]   --> src/analysis/engine/tokens.rs:19:19
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub(crate) struct StoredToken {
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StoredComment` is never constructed
[INFO] [stdout]   --> src/analysis/engine/tokens.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub(crate) struct StoredComment {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SemanticToken` is never constructed
[INFO] [stdout]   --> src/analysis/engine/tokens.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub(crate) struct SemanticToken {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.14s
[INFO] running `Command { std: "docker" "inspect" "a273f0c6fba52a60085e6a212f472cc74f055ad56c7f13f65e79d0cba8b60b8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a273f0c6fba52a60085e6a212f472cc74f055ad56c7f13f65e79d0cba8b60b8a" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] warning: methods `all_column_names` and `function_signature` are never used
[INFO] [stdout]     --> src/analysis/catalog.rs:1047:19
[INFO] [stdout]      |
[INFO] [stdout]  542 | impl Catalog {
[INFO] [stdout]      | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1047 |     pub(crate) fn all_column_names(&self, table: Option<&str>) -> Vec<String> {
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1064 |     pub(crate) fn function_signature(
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `CompletionContext` is never used
[INFO] [stdout]   --> src/analysis/completion.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub(crate) enum CompletionContext {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_parser` is never used
[INFO] [stdout]   --> src/analysis/completion.rs:33:19
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl CompletionContext {
[INFO] [stdout]    | ---------------------- associated function in this implementation
[INFO] [stdout] 33 |     pub(crate) fn from_parser(v: syntaqlite_syntax::CompletionContext) -> Self {
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CompletionInfo` is never constructed
[INFO] [stdout]   --> src/analysis/completion.rs:44:19
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub(crate) struct CompletionInfo {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `completion_info` is never used
[INFO] [stdout]   --> src/analysis/completion.rs:52:15
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub(crate) fn completion_info(
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `detect_qualifier` is never used
[INFO] [stdout]    --> src/analysis/completion.rs:112:4
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn detect_qualifier(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `completion_boundary` is never used
[INFO] [stdout]    --> src/analysis/completion.rs:138:4
[INFO] [stdout]     |
[INFO] [stdout] 138 | fn completion_boundary(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `statement_token_start` is never used
[INFO] [stdout]    --> src/analysis/completion.rs:172:4
[INFO] [stdout]     |
[INFO] [stdout] 172 | fn statement_token_start(tokens: &[StoredToken], boundary: usize) -> usize {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `merge_expected_tokens` is never used
[INFO] [stdout]    --> src/analysis/completion.rs:180:4
[INFO] [stdout]     |
[INFO] [stdout] 180 | fn merge_expected_tokens(into: &mut Vec<AnyTokenType>, extra: Vec<AnyTokenType>) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling syntaqlite v0.12.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `SignatureHelpInfo` is never constructed
[INFO] [stdout]    --> src/analysis/completion.rs:193:19
[INFO] [stdout]     |
[INFO] [stdout] 193 | pub(crate) struct SignatureHelpInfo {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_enclosing_call` is never used
[INFO] [stdout]    --> src/analysis/completion.rs:203:15
[INFO] [stdout]     |
[INFO] [stdout] 203 | pub(crate) fn find_enclosing_call(
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `with_macro_fallback` and `dialect` are never used
[INFO] [stdout]    --> src/analysis/engine/mod.rs:117:19
[INFO] [stdout]     |
[INFO] [stdout]  75 | impl Analyzer {
[INFO] [stdout]     | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 117 |     pub(crate) fn with_macro_fallback(mut self, enabled: bool) -> Self {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub(crate) fn dialect(&self) -> AnyDialect {
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StoredToken` is never constructed
[INFO] [stdout]   --> src/analysis/engine/tokens.rs:19:19
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub(crate) struct StoredToken {
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StoredComment` is never constructed
[INFO] [stdout]   --> src/analysis/engine/tokens.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub(crate) struct StoredComment {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SemanticToken` is never constructed
[INFO] [stdout]   --> src/analysis/engine/tokens.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub(crate) struct SemanticToken {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> examples/token_preservation.rs:337:17
[INFO] [stdout]     |
[INFO] [stdout] 337 |                 serde_json::json!({
[INFO] [stdout]     |                 ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> examples/token_preservation.rs:327:17
[INFO] [stdout]     |
[INFO] [stdout] 327 |                 serde_json::json!({
[INFO] [stdout]     |                 ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> examples/token_preservation.rs:292:23
[INFO] [stdout]     |
[INFO] [stdout] 292 |             .and_then(serde_json::Value::as_str)
[INFO] [stdout]     |                       ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> examples/token_preservation.rs:296:23
[INFO] [stdout]     |
[INFO] [stdout] 296 |             .and_then(serde_json::Value::as_str)
[INFO] [stdout]     |                       ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> examples/token_preservation.rs:302:23
[INFO] [stdout]     |
[INFO] [stdout] 302 |             .and_then(serde_json::Value::as_str)
[INFO] [stdout]     |                       ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> examples/token_preservation.rs:307:23
[INFO] [stdout]     |
[INFO] [stdout] 307 |             .and_then(serde_json::Value::as_array)
[INFO] [stdout]     |                       ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> examples/token_preservation.rs:289:13
[INFO] [stdout]     |
[INFO] [stdout] 289 |             serde_json::from_str(&line).expect("corpus line is JSON Lines");
[INFO] [stdout]     |             ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]    --> examples/token_preservation.rs:288:20
[INFO] [stdout]     |
[INFO] [stdout] 288 |         let entry: serde_json::Value =
[INFO] [stdout]     |                    ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syntaqlite` (example "token_preservation") due to 8 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: methods `all_column_names` and `function_signature` are never used
[INFO] [stdout]     --> src/analysis/catalog.rs:1047:19
[INFO] [stdout]      |
[INFO] [stdout]  542 | impl Catalog {
[INFO] [stdout]      | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 1047 |     pub(crate) fn all_column_names(&self, table: Option<&str>) -> Vec<String> {
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1064 |     pub(crate) fn function_signature(
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `CompletionContext` is never used
[INFO] [stdout]   --> src/analysis/completion.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub(crate) enum CompletionContext {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_parser` is never used
[INFO] [stdout]   --> src/analysis/completion.rs:33:19
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl CompletionContext {
[INFO] [stdout]    | ---------------------- associated function in this implementation
[INFO] [stdout] 33 |     pub(crate) fn from_parser(v: syntaqlite_syntax::CompletionContext) -> Self {
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CompletionInfo` is never constructed
[INFO] [stdout]   --> src/analysis/completion.rs:44:19
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub(crate) struct CompletionInfo {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `completion_info` is never used
[INFO] [stdout]   --> src/analysis/completion.rs:52:15
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub(crate) fn completion_info(
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `completion_boundary` is never used
[INFO] [stdout]    --> src/analysis/completion.rs:138:4
[INFO] [stdout]     |
[INFO] [stdout] 138 | fn completion_boundary(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `statement_token_start` is never used
[INFO] [stdout]    --> src/analysis/completion.rs:172:4
[INFO] [stdout]     |
[INFO] [stdout] 172 | fn statement_token_start(tokens: &[StoredToken], boundary: usize) -> usize {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `merge_expected_tokens` is never used
[INFO] [stdout]    --> src/analysis/completion.rs:180:4
[INFO] [stdout]     |
[INFO] [stdout] 180 | fn merge_expected_tokens(into: &mut Vec<AnyTokenType>, extra: Vec<AnyTokenType>) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SignatureHelpInfo` is never constructed
[INFO] [stdout]    --> src/analysis/completion.rs:193:19
[INFO] [stdout]     |
[INFO] [stdout] 193 | pub(crate) struct SignatureHelpInfo {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_enclosing_call` is never used
[INFO] [stdout]    --> src/analysis/completion.rs:203:15
[INFO] [stdout]     |
[INFO] [stdout] 203 | pub(crate) fn find_enclosing_call(
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `with_macro_fallback` and `dialect` are never used
[INFO] [stdout]    --> src/analysis/engine/mod.rs:117:19
[INFO] [stdout]     |
[INFO] [stdout]  75 | impl Analyzer {
[INFO] [stdout]     | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 117 |     pub(crate) fn with_macro_fallback(mut self, enabled: bool) -> Self {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub(crate) fn dialect(&self) -> AnyDialect {
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flags` is never read
[INFO] [stdout]   --> src/analysis/engine/tokens.rs:23:16
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub(crate) struct StoredToken {
[INFO] [stdout]    |                   ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub(crate) flags: ParserTokenFlags,
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `StoredToken` 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: struct `StoredComment` is never constructed
[INFO] [stdout]   --> src/analysis/engine/tokens.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub(crate) struct StoredComment {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SemanticToken` is never constructed
[INFO] [stdout]   --> src/analysis/engine/tokens.rs:35:19
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub(crate) struct SemanticToken {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a273f0c6fba52a60085e6a212f472cc74f055ad56c7f13f65e79d0cba8b60b8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a273f0c6fba52a60085e6a212f472cc74f055ad56c7f13f65e79d0cba8b60b8a", kill_on_drop: false }`
[INFO] [stdout] a273f0c6fba52a60085e6a212f472cc74f055ad56c7f13f65e79d0cba8b60b8a
