[INFO] fetching crate sqlx-mssql-odbc-core 0.1.8...
[INFO] checking sqlx-mssql-odbc-core-0.1.8 against 895980e0290783bb09b1ccf1b11f14eb09b10430 for pr-160186
[INFO] extracting crate sqlx-mssql-odbc-core 0.1.8 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate sqlx-mssql-odbc-core 0.1.8
[INFO] finished tweaking crates.io crate sqlx-mssql-odbc-core 0.1.8
[INFO] tweaked toml for crates.io crate sqlx-mssql-odbc-core 0.1.8 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sqlx-mssql-odbc-core 0.1.8 on toolchain 895980e0290783bb09b1ccf1b11f14eb09b10430
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sqlx-mssql-odbc-core 0.1.8 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" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] a64137f99b5184c9b08bb61c934b26a6f6a2504044a1d46c3dd706cca2360596
[INFO] running `Command { std: "docker" "start" "a64137f99b5184c9b08bb61c934b26a6f6a2504044a1d46c3dd706cca2360596", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a64137f99b5184c9b08bb61c934b26a6f6a2504044a1d46c3dd706cca2360596", 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" "a64137f99b5184c9b08bb61c934b26a6f6a2504044a1d46c3dd706cca2360596" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a64137f99b5184c9b08bb61c934b26a6f6a2504044a1d46c3dd706cca2360596", 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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a64137f99b5184c9b08bb61c934b26a6f6a2504044a1d46c3dd706cca2360596" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking smallvec v1.15.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling odbc-sys v0.31.0
[INFO] [stderr]     Checking futures-sink v0.3.32
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking hashlink v0.11.1
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking futures-util v0.3.32
[INFO] [stderr]     Checking icu_normalizer v2.2.0
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking either v1.16.0
[INFO] [stderr]     Checking widestring v1.2.1
[INFO] [stderr]     Checking fastrand v2.4.1
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking crossbeam-queue v0.3.12
[INFO] [stderr]     Checking bytes v1.12.0
[INFO] [stderr]     Checking futures-intrusive v0.5.0
[INFO] [stderr]     Checking base64 v0.22.1
[INFO] [stderr]     Checking event-listener v5.4.1
[INFO] [stderr]     Checking idna_adapter v1.2.2
[INFO] [stderr]     Checking idna v1.1.0
[INFO] [stderr]     Checking flume v0.12.0
[INFO] [stderr]     Checking url v2.5.8
[INFO] [stderr]     Checking atoi v3.0.0
[INFO] [stderr]     Checking odbc-api v28.1.0
[INFO] [stderr]     Checking sqlx-core v0.9.0
[INFO] [stderr]     Checking sqlx-mssql-odbc-core v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:198:21
[INFO] [stdout]     |
[INFO] [stdout] 198 |                 let mut conn_guard = self.conn.lock().map_err(|_| {
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:218:25
[INFO] [stdout]     |
[INFO] [stdout] 218 |                     let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |                         ----^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:259:21
[INFO] [stdout]     |
[INFO] [stdout] 259 |                 let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |                     ----^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:279:25
[INFO] [stdout]     |
[INFO] [stdout] 279 |                     let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |                         ----^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:389:13
[INFO] [stdout]     |
[INFO] [stdout] 389 |         let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:403:17
[INFO] [stdout]     |
[INFO] [stdout] 403 |             let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |                 ----^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:416:17
[INFO] [stdout]     |
[INFO] [stdout] 416 |             let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |                 ----^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:442:17
[INFO] [stdout]     |
[INFO] [stdout] 442 |             let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |                 ----^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:472:17
[INFO] [stdout]     |
[INFO] [stdout] 472 |             let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |                 ----^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:492:17
[INFO] [stdout]     |
[INFO] [stdout] 492 |             let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |                 ----^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:516:23
[INFO] [stdout]     |
[INFO] [stdout] 516 |             if let Ok(mut conn_guard) = self.conn.lock() {
[INFO] [stdout]     |                       ----^^^^^^^^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:523:23
[INFO] [stdout]     |
[INFO] [stdout] 523 |             if let Ok(mut conn_guard) = self.conn.lock() {
[INFO] [stdout]     |                       ----^^^^^^^^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:535:13
[INFO] [stdout]     |
[INFO] [stdout] 535 |         let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:548:13
[INFO] [stdout]     |
[INFO] [stdout] 548 |         let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:589:13
[INFO] [stdout]     |
[INFO] [stdout] 589 |         let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:198:21
[INFO] [stdout]     |
[INFO] [stdout] 198 |                 let mut conn_guard = self.conn.lock().map_err(|_| {
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:218:25
[INFO] [stdout]     |
[INFO] [stdout] 218 |                     let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |                         ----^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:259:21
[INFO] [stdout]     |
[INFO] [stdout] 259 |                 let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |                     ----^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:279:25
[INFO] [stdout]     |
[INFO] [stdout] 279 |                     let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |                         ----^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:389:13
[INFO] [stdout]     |
[INFO] [stdout] 389 |         let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:403:17
[INFO] [stdout]     |
[INFO] [stdout] 403 |             let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |                 ----^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:416:17
[INFO] [stdout]     |
[INFO] [stdout] 416 |             let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |                 ----^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:442:17
[INFO] [stdout]     |
[INFO] [stdout] 442 |             let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |                 ----^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:472:17
[INFO] [stdout]     |
[INFO] [stdout] 472 |             let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |                 ----^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:492:17
[INFO] [stdout]     |
[INFO] [stdout] 492 |             let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |                 ----^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:516:23
[INFO] [stdout]     |
[INFO] [stdout] 516 |             if let Ok(mut conn_guard) = self.conn.lock() {
[INFO] [stdout]     |                       ----^^^^^^^^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:523:23
[INFO] [stdout]     |
[INFO] [stdout] 523 |             if let Ok(mut conn_guard) = self.conn.lock() {
[INFO] [stdout]     |                       ----^^^^^^^^^^
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:535:13
[INFO] [stdout]     |
[INFO] [stdout] 535 |         let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:548:13
[INFO] [stdout]     |
[INFO] [stdout] 548 |         let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:589:13
[INFO] [stdout]     |
[INFO] [stdout] 589 |         let mut conn_guard = self.conn.lock().map_err(|_| {
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ScalarI64`, `Shutdown`, and `ListMigrations` are never constructed
[INFO] [stdout]   --> src/connection.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | enum Command {
[INFO] [stdout]    |      ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 59 |     ScalarI64 {
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     Shutdown {
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     ListMigrations {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `buffer_settings` is never read
[INFO] [stdout]    --> src/connection.rs:753:5
[INFO] [stdout]     |
[INFO] [stdout] 751 | pub struct MssqlConnection {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 752 |     cmd_tx: flume::Sender<Command>,
[INFO] [stdout] 753 |     buffer_settings: MssqlBufferSettings,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/connection.rs:814:9
[INFO] [stdout]     |
[INFO] [stdout] 814 | /         send_command_blocking(&self.cmd_tx, |tx| {
[INFO] [stdout] 815 | |             Command::ExecSql {
[INFO] [stdout] 816 | |                 sql: "SELECT 1 /* dbms_name */".into(),
[INFO] [stdout] 817 | |                 response: tx,
[INFO] [stdout] 818 | |             }
[INFO] [stdout] 819 | |         })?;
[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 _unused = ...` to ignore the resulting value without dropping it immediately
[INFO] [stdout]     |
[INFO] [stdout] 814 |         let _unused = send_command_blocking(&self.cmd_tx, |tx| {
[INFO] [stdout]     |         +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ScalarI64`, `Shutdown`, and `ListMigrations` are never constructed
[INFO] [stdout]   --> src/connection.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | enum Command {
[INFO] [stdout]    |      ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 59 |     ScalarI64 {
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |     Shutdown {
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     ListMigrations {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `buffer_settings` is never read
[INFO] [stdout]    --> src/connection.rs:753:5
[INFO] [stdout]     |
[INFO] [stdout] 751 | pub struct MssqlConnection {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 752 |     cmd_tx: flume::Sender<Command>,
[INFO] [stdout] 753 |     buffer_settings: MssqlBufferSettings,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/connection.rs:814:9
[INFO] [stdout]     |
[INFO] [stdout] 814 | /         send_command_blocking(&self.cmd_tx, |tx| {
[INFO] [stdout] 815 | |             Command::ExecSql {
[INFO] [stdout] 816 | |                 sql: "SELECT 1 /* dbms_name */".into(),
[INFO] [stdout] 817 | |                 response: tx,
[INFO] [stdout] 818 | |             }
[INFO] [stdout] 819 | |         })?;
[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 _unused = ...` to ignore the resulting value without dropping it immediately
[INFO] [stdout]     |
[INFO] [stdout] 814 |         let _unused = send_command_blocking(&self.cmd_tx, |tx| {
[INFO] [stdout]     |         +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.71s
[INFO] running `Command { std: "docker" "inspect" "a64137f99b5184c9b08bb61c934b26a6f6a2504044a1d46c3dd706cca2360596", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a64137f99b5184c9b08bb61c934b26a6f6a2504044a1d46c3dd706cca2360596", kill_on_drop: false }`
[INFO] [stdout] a64137f99b5184c9b08bb61c934b26a6f6a2504044a1d46c3dd706cca2360596
