[INFO] cloning repository https://github.com/grdvsng/white_octopus
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/grdvsng/white_octopus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrdvsng%2Fwhite_octopus", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrdvsng%2Fwhite_octopus'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ccbde80df9fb642888960a0198d0135f4b48ff46
[INFO] checking grdvsng/white_octopus against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrdvsng%2Fwhite_octopus" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/grdvsng/white_octopus on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/grdvsng/white_octopus
[INFO] finished tweaking git repo https://github.com/grdvsng/white_octopus
[INFO] tweaked toml for git repo https://github.com/grdvsng/white_octopus written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 201f7dcd9cfc60aaab659b5a7569e8fd5ad2a33aa9c3871c080182a4eee688f8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "201f7dcd9cfc60aaab659b5a7569e8fd5ad2a33aa9c3871c080182a4eee688f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "201f7dcd9cfc60aaab659b5a7569e8fd5ad2a33aa9c3871c080182a4eee688f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "201f7dcd9cfc60aaab659b5a7569e8fd5ad2a33aa9c3871c080182a4eee688f8", kill_on_drop: false }`
[INFO] [stdout] 201f7dcd9cfc60aaab659b5a7569e8fd5ad2a33aa9c3871c080182a4eee688f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b994b637392b5d4852db54ffe5ad0f0e16bbb8350b1ddd4046fbf0282033191
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5b994b637392b5d4852db54ffe5ad0f0e16bbb8350b1ddd4046fbf0282033191", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking white_octopus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Regex`, `Split`
[INFO] [stdout]   --> src/basic_elements.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | use regex::{Regex, Split};
[INFO] [stdout]    |             ^^^^^  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Regex`, `Split`
[INFO] [stdout]   --> src/basic_elements.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | use regex::{Regex, Split};
[INFO] [stdout]    |             ^^^^^  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Regex`, `Split`
[INFO] [stdout]   --> tests/../src/basic_elements.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | use regex::{Regex, Split};
[INFO] [stdout]    |             ^^^^^  ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `basic_elements::*`
[INFO] [stdout]  --> tests/elements_test.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use basic_elements::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/basic_elements.rs:321:21
[INFO] [stdout]     |
[INFO] [stdout] 321 |         if let Some(x) = self.map.get_mut(&*index)
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/basic_elements.rs:321:21
[INFO] [stdout]     |
[INFO] [stdout] 321 |         if let Some(x) = self.map.get_mut(&*index)
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> tests/../src/basic_elements.rs:321:21
[INFO] [stdout]     |
[INFO] [stdout] 321 |         if let Some(x) = self.map.get_mut(&*index)
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_null`
[INFO] [stdout]   --> src/basic_elements.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn get_null(&self) -> TData
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Float`
[INFO] [stdout]   --> src/basic_elements.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     Float(f32),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Boolean`
[INFO] [stdout]   --> src/basic_elements.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     Boolean(bool),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Time`
[INFO] [stdout]   --> src/basic_elements.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     Time(DateTime<Utc>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Table`
[INFO] [stdout]   --> src/basic_elements.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     Table(Table),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_null`
[INFO] [stdout]   --> tests/../src/basic_elements.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn get_null(&self) -> TData
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Text`
[INFO] [stdout]   --> tests/../src/basic_elements.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     Text(&'static str),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Integer`
[INFO] [stdout]   --> tests/../src/basic_elements.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     Integer(i32),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Float`
[INFO] [stdout]   --> tests/../src/basic_elements.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     Float(f32),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Boolean`
[INFO] [stdout]   --> tests/../src/basic_elements.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     Boolean(bool),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Time`
[INFO] [stdout]   --> tests/../src/basic_elements.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     Time(DateTime<Utc>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Table`
[INFO] [stdout]   --> tests/../src/basic_elements.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     Table(Table),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_json`
[INFO] [stdout]    --> tests/../src/basic_elements.rs:111:8
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn to_json(&self) -> JsonValue
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ColumnExists`
[INFO] [stdout]    --> tests/../src/basic_elements.rs:162:5
[INFO] [stdout]     |
[INFO] [stdout] 162 |     ColumnExists(String),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ColumnNotExists`
[INFO] [stdout]    --> tests/../src/basic_elements.rs:163:5
[INFO] [stdout]     |
[INFO] [stdout] 163 |     ColumnNotExists(String),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidTypes`
[INFO] [stdout]    --> tests/../src/basic_elements.rs:164:5
[INFO] [stdout]     |
[INFO] [stdout] 164 |     InvalidTypes(String),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RequiredFieldNotExist`
[INFO] [stdout]    --> tests/../src/basic_elements.rs:165:5
[INFO] [stdout]     |
[INFO] [stdout] 165 |     RequiredFieldNotExist(String),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ValuesLenNeqPropertiesName`
[INFO] [stdout]    --> tests/../src/basic_elements.rs:166:5
[INFO] [stdout]     |
[INFO] [stdout] 166 |     ValuesLenNeqPropertiesName(String),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Ok`
[INFO] [stdout]    --> tests/../src/basic_elements.rs:167:5
[INFO] [stdout]     |
[INFO] [stdout] 167 |     Ok,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> tests/../src/basic_elements.rs:275:12
[INFO] [stdout]     |
[INFO] [stdout] 275 |     pub fn new(name: String, class: DataType, index: usize, required: bool) -> TColumn
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> tests/../src/basic_elements.rs:298:12
[INFO] [stdout]     |
[INFO] [stdout] 298 |     pub fn new(index: usize) -> Record
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_json`
[INFO] [stdout]    --> tests/../src/basic_elements.rs:303:8
[INFO] [stdout]     |
[INFO] [stdout] 303 |     fn to_json(&self) -> JsonValue
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> tests/../src/basic_elements.rs:365:12
[INFO] [stdout]     |
[INFO] [stdout] 365 |     pub fn new(name: String) -> Table
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]    --> tests/../src/basic_elements.rs:377:12
[INFO] [stdout]     |
[INFO] [stdout] 377 |     pub fn add(&mut self, column_name: String,  datatype: DataType, required: bool) -> TableResult
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert`
[INFO] [stdout]    --> tests/../src/basic_elements.rs:394:12
[INFO] [stdout]     |
[INFO] [stdout] 394 |     pub fn insert(&mut self, columns_name: Vec<String>, values: Vec<TData>) -> TableResult
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_validator`
[INFO] [stdout]    --> tests/../src/basic_elements.rs:406:8
[INFO] [stdout]     |
[INFO] [stdout] 406 |     fn insert_validator(&self, columns_name: &Vec<String>, values: &Vec<TData>) -> TableResult
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_validator_check_required`
[INFO] [stdout]    --> tests/../src/basic_elements.rs:425:8
[INFO] [stdout]     |
[INFO] [stdout] 425 |     fn insert_validator_check_required(&self, columns_name: &Vec<String>) -> TableResult
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `select`
[INFO] [stdout]    --> tests/../src/basic_elements.rs:484:12
[INFO] [stdout]     |
[INFO] [stdout] 484 |     pub fn select(&self, query: &dyn Fn(&Record) -> bool) -> Vec<Record>
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_json`
[INFO] [stdout]    --> tests/../src/basic_elements.rs:500:12
[INFO] [stdout]     |
[INFO] [stdout] 500 |     pub fn to_json(&self) -> JsonValue
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_null`
[INFO] [stdout]   --> src/basic_elements.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn get_null(&self) -> TData
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Float`
[INFO] [stdout]   --> src/basic_elements.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     Float(f32),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Boolean`
[INFO] [stdout]   --> src/basic_elements.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     Boolean(bool),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Time`
[INFO] [stdout]   --> src/basic_elements.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     Time(DateTime<Utc>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Table`
[INFO] [stdout]   --> src/basic_elements.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     Table(Table),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> tests/../src/basic_elements.rs:506:13
[INFO] [stdout]     |
[INFO] [stdout] 506 |             _records.push(record.to_json());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> tests/../src/basic_elements.rs:499:12
[INFO] [stdout]     |
[INFO] [stdout] 499 |     #[warn(unused_must_use)]
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/basic_elements.rs:506:13
[INFO] [stdout]     |
[INFO] [stdout] 506 |             _records.push(record.to_json());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/basic_elements.rs:499:12
[INFO] [stdout]     |
[INFO] [stdout] 499 |     #[warn(unused_must_use)]
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/basic_elements.rs:506:13
[INFO] [stdout]     |
[INFO] [stdout] 506 |             _records.push(record.to_json());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/basic_elements.rs:499:12
[INFO] [stdout]     |
[INFO] [stdout] 499 |     #[warn(unused_must_use)]
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.10s
[INFO] running `Command { std: "docker" "inspect" "5b994b637392b5d4852db54ffe5ad0f0e16bbb8350b1ddd4046fbf0282033191", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b994b637392b5d4852db54ffe5ad0f0e16bbb8350b1ddd4046fbf0282033191", kill_on_drop: false }`
[INFO] [stdout] 5b994b637392b5d4852db54ffe5ad0f0e16bbb8350b1ddd4046fbf0282033191