[INFO] fetching crate cdbc-mssql 0.1.22...
[INFO] testing cdbc-mssql-0.1.22 against 1.69.0 for beta-1.70-1
[INFO] extracting crate cdbc-mssql 0.1.22 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate cdbc-mssql 0.1.22 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cdbc-mssql 0.1.22
[INFO] finished tweaking crates.io crate cdbc-mssql 0.1.22
[INFO] tweaked toml for crates.io crate cdbc-mssql 0.1.22 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mco-gen v0.1.0
[INFO] [stderr]   Downloaded cdbc-macro v0.1.23
[INFO] [stderr]   Downloaded nix v0.21.0
[INFO] [stderr]   Downloaded cdbc v0.1.23
[INFO] [stderr]   Downloaded mco v0.1.44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a74218198d21b4b8ff87641e77a21fc57d2bbd31ef8ff48dd5e07c6a09cbd32
[INFO] running `Command { std: "docker" "start" "-a" "7a74218198d21b4b8ff87641e77a21fc57d2bbd31ef8ff48dd5e07c6a09cbd32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a74218198d21b4b8ff87641e77a21fc57d2bbd31ef8ff48dd5e07c6a09cbd32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a74218198d21b4b8ff87641e77a21fc57d2bbd31ef8ff48dd5e07c6a09cbd32", kill_on_drop: false }`
[INFO] [stdout] 7a74218198d21b4b8ff87641e77a21fc57d2bbd31ef8ff48dd5e07c6a09cbd32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 439a6e154bc8e1d19632431e20d602447f835a34910a0b140c0ee122124fdc8a
[INFO] running `Command { std: "docker" "start" "-a" "439a6e154bc8e1d19632431e20d602447f835a34910a0b140c0ee122124fdc8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling rustversion v1.0.12
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling crossbeam-queue v0.3.8
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling syn v2.0.15
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling num_threads v0.1.6
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling encoding_rs v0.8.32
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling aho-corasick v1.0.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling crossbeam v0.8.2
[INFO] [stderr]    Compiling mco-gen v0.1.0
[INFO] [stderr]    Compiling mco v0.1.44
[INFO] [stderr]    Compiling getrandom v0.2.9
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling nix v0.21.0
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling socket2 v0.4.9
[INFO] [stderr]    Compiling regex v1.8.1
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling hashlink v0.7.0
[INFO] [stderr]    Compiling cdbc-macro v0.1.23
[INFO] [stderr]    Compiling time v0.3.20
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling cdbc v0.1.23
[INFO] [stderr]    Compiling cdbc-mssql v0.1.22 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Cow`
[INFO] [stdout]   --> src/connection/executor.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::borrow::Cow;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `err_end`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cdbc-0.1.23/src/io/chan_stream.rs:108:26
[INFO] [stdout]     |
[INFO] [stdout] 108 |             macro_rules! err_end {
[INFO] [stdout]     |                          ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `end`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cdbc-0.1.23/src/io/chan_stream.rs:115:26
[INFO] [stdout]     |
[INFO] [stdout] 115 |             macro_rules! end {
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Encode`, `IsNull`
[INFO] [stdout]  --> src/types/mod.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use cdbc::encode::{Encode, IsNull};
[INFO] [stdout]   |                    ^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DataType`, `TypeInfo`
[INFO] [stdout]  --> src/types/mod.rs:2:34
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::protocol::type_info::{DataType, TypeInfo};
[INFO] [stdout]   |                                  ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MssqlTypeInfo`, `Mssql`
[INFO] [stdout]  --> src/types/mod.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{Mssql, MssqlTypeInfo};
[INFO] [stdout]   |             ^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]  --> src/options/connect.rs:9:22
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn connect(&self,d:Duration) ->Result<Self::Connection, Error>
[INFO] [stdout]   |                      ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cursor_command` is never read
[INFO] [stdout]   --> src/protocol/done.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct Done {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     cursor_command: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Done` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `columns` is never read
[INFO] [stdout]  --> src/protocol/order.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Order {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 7 |     columns: Bytes,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Order` 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 `value` is never read
[INFO] [stdout]  --> src/protocol/return_status.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct ReturnStatus {
[INFO] [stdout]   |            ------------ field in this struct
[INFO] [stdout] 7 |     value: i32,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ReturnStatus` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `param_ordinal`, `param_name`, `status`, `user_type`, and `flags` are never read
[INFO] [stdout]   --> src/protocol/return_value.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct ReturnValue {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 11 |     param_ordinal: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 12 |     param_name: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 13 |     status: ReturnValueStatus,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 14 |     user_type: u32,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 15 |     flags: Flags,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ReturnValue` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/connection/executor.rs:89:25
[INFO] [stdout]    |
[INFO] [stdout] 89 |                         r#yield!(Either::Right(MssqlRow { row, column_names, columns }));
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `yield` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/connection/executor.rs:98:29
[INFO] [stdout]     |
[INFO] [stdout] 98  | / ...                   r#yield!(Either::Left(MssqlQueryResult {
[INFO] [stdout] 99  | | ...                       rows_affected: done.affected_rows,
[INFO] [stdout] 100 | | ...                   }));
[INFO] [stdout]     | |_________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `yield` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/connection/executor.rs:110:29
[INFO] [stdout]     |
[INFO] [stdout] 110 | / ...                   r#yield!(Either::Left(MssqlQueryResult {
[INFO] [stdout] 111 | | ...                       rows_affected: done.affected_rows,
[INFO] [stdout] 112 | | ...                   }));
[INFO] [stdout]     | |_________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `yield` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.93s
[INFO] running `Command { std: "docker" "inspect" "439a6e154bc8e1d19632431e20d602447f835a34910a0b140c0ee122124fdc8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "439a6e154bc8e1d19632431e20d602447f835a34910a0b140c0ee122124fdc8a", kill_on_drop: false }`
[INFO] [stdout] 439a6e154bc8e1d19632431e20d602447f835a34910a0b140c0ee122124fdc8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c4c4e97c1b9f58b7dd39d99384bae2462ccd72d9e5700713ef00dd91ab19542
[INFO] running `Command { std: "docker" "start" "-a" "5c4c4e97c1b9f58b7dd39d99384bae2462ccd72d9e5700713ef00dd91ab19542", kill_on_drop: false }`
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Cow`
[INFO] [stdout]   --> src/connection/executor.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::borrow::Cow;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `err_end`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cdbc-0.1.23/src/io/chan_stream.rs:108:26
[INFO] [stdout]     |
[INFO] [stdout] 108 |             macro_rules! err_end {
[INFO] [stdout]     |                          ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `end`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cdbc-0.1.23/src/io/chan_stream.rs:115:26
[INFO] [stdout]     |
[INFO] [stdout] 115 |             macro_rules! end {
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Encode`, `IsNull`
[INFO] [stdout]  --> src/types/mod.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use cdbc::encode::{Encode, IsNull};
[INFO] [stdout]   |                    ^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DataType`, `TypeInfo`
[INFO] [stdout]  --> src/types/mod.rs:2:34
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::protocol::type_info::{DataType, TypeInfo};
[INFO] [stdout]   |                                  ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MssqlTypeInfo`, `Mssql`
[INFO] [stdout]  --> src/types/mod.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{Mssql, MssqlTypeInfo};
[INFO] [stdout]   |             ^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]  --> src/options/connect.rs:9:22
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn connect(&self,d:Duration) ->Result<Self::Connection, Error>
[INFO] [stdout]   |                      ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cursor_command` is never read
[INFO] [stdout]   --> src/protocol/done.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct Done {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     cursor_command: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Done` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `columns` is never read
[INFO] [stdout]  --> src/protocol/order.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Order {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 7 |     columns: Bytes,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Order` 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 `value` is never read
[INFO] [stdout]  --> src/protocol/return_status.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct ReturnStatus {
[INFO] [stdout]   |            ------------ field in this struct
[INFO] [stdout] 7 |     value: i32,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ReturnStatus` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `param_ordinal`, `param_name`, `status`, `user_type`, and `flags` are never read
[INFO] [stdout]   --> src/protocol/return_value.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct ReturnValue {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 11 |     param_ordinal: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 12 |     param_name: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 13 |     status: ReturnValueStatus,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 14 |     user_type: u32,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 15 |     flags: Flags,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ReturnValue` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/connection/executor.rs:89:25
[INFO] [stdout]    |
[INFO] [stdout] 89 |                         r#yield!(Either::Right(MssqlRow { row, column_names, columns }));
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `yield` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/connection/executor.rs:98:29
[INFO] [stdout]     |
[INFO] [stdout] 98  | / ...                   r#yield!(Either::Left(MssqlQueryResult {
[INFO] [stdout] 99  | | ...                       rows_affected: done.affected_rows,
[INFO] [stdout] 100 | | ...                   }));
[INFO] [stdout]     | |_________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `yield` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/connection/executor.rs:110:29
[INFO] [stdout]     |
[INFO] [stdout] 110 | / ...                   r#yield!(Either::Left(MssqlQueryResult {
[INFO] [stdout] 111 | | ...                       rows_affected: done.affected_rows,
[INFO] [stdout] 112 | | ...                   }));
[INFO] [stdout]     | |_________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `yield` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cdbc-mssql v0.1.22 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Cow`
[INFO] [stdout]   --> src/connection/executor.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::borrow::Cow;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `err_end`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cdbc-0.1.23/src/io/chan_stream.rs:108:26
[INFO] [stdout]     |
[INFO] [stdout] 108 |             macro_rules! err_end {
[INFO] [stdout]     |                          ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `end`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cdbc-0.1.23/src/io/chan_stream.rs:115:26
[INFO] [stdout]     |
[INFO] [stdout] 115 |             macro_rules! end {
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Encode`, `IsNull`
[INFO] [stdout]  --> src/types/mod.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use cdbc::encode::{Encode, IsNull};
[INFO] [stdout]   |                    ^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DataType`, `TypeInfo`
[INFO] [stdout]  --> src/types/mod.rs:2:34
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::protocol::type_info::{DataType, TypeInfo};
[INFO] [stdout]   |                                  ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MssqlTypeInfo`, `Mssql`
[INFO] [stdout]  --> src/types/mod.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{Mssql, MssqlTypeInfo};
[INFO] [stdout]   |             ^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `d`
[INFO] [stdout]  --> src/options/connect.rs:9:22
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn connect(&self,d:Duration) ->Result<Self::Connection, Error>
[INFO] [stdout]   |                      ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cursor_command` is never read
[INFO] [stdout]   --> src/protocol/done.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct Done {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     cursor_command: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Done` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `columns` is never read
[INFO] [stdout]  --> src/protocol/order.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Order {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 7 |     columns: Bytes,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Order` 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 `value` is never read
[INFO] [stdout]  --> src/protocol/return_status.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct ReturnStatus {
[INFO] [stdout]   |            ------------ field in this struct
[INFO] [stdout] 7 |     value: i32,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ReturnStatus` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `param_ordinal`, `param_name`, `status`, `user_type`, and `flags` are never read
[INFO] [stdout]   --> src/protocol/return_value.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct ReturnValue {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 11 |     param_ordinal: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 12 |     param_name: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 13 |     status: ReturnValueStatus,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 14 |     user_type: u32,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 15 |     flags: Flags,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ReturnValue` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/connection/executor.rs:89:25
[INFO] [stdout]    |
[INFO] [stdout] 89 |                         r#yield!(Either::Right(MssqlRow { row, column_names, columns }));
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `yield` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/connection/executor.rs:98:29
[INFO] [stdout]     |
[INFO] [stdout] 98  | / ...                   r#yield!(Either::Left(MssqlQueryResult {
[INFO] [stdout] 99  | | ...                       rows_affected: done.affected_rows,
[INFO] [stdout] 100 | | ...                   }));
[INFO] [stdout]     | |_________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `yield` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/connection/executor.rs:110:29
[INFO] [stdout]     |
[INFO] [stdout] 110 | / ...                   r#yield!(Either::Left(MssqlQueryResult {
[INFO] [stdout] 111 | | ...                       rows_affected: done.affected_rows,
[INFO] [stdout] 112 | | ...                   }));
[INFO] [stdout]     | |_________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `yield` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.78s
[INFO] running `Command { std: "docker" "inspect" "5c4c4e97c1b9f58b7dd39d99384bae2462ccd72d9e5700713ef00dd91ab19542", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c4c4e97c1b9f58b7dd39d99384bae2462ccd72d9e5700713ef00dd91ab19542", kill_on_drop: false }`
[INFO] [stdout] 5c4c4e97c1b9f58b7dd39d99384bae2462ccd72d9e5700713ef00dd91ab19542
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5f801f0a892b19685d9dd1cf9a21321137419e3b03320f58f48663b74843eb01
[INFO] running `Command { std: "docker" "start" "-a" "5f801f0a892b19685d9dd1cf9a21321137419e3b03320f58f48663b74843eb01", kill_on_drop: false }`
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Cow`
[INFO] [stderr]   --> src/connection/executor.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use std::borrow::Cow;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition: `err_end`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cdbc-0.1.23/src/io/chan_stream.rs:108:26
[INFO] [stderr]     |
[INFO] [stderr] 108 |             macro_rules! err_end {
[INFO] [stderr]     |                          ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition: `end`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cdbc-0.1.23/src/io/chan_stream.rs:115:26
[INFO] [stderr]     |
[INFO] [stderr] 115 |             macro_rules! end {
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Encode`, `IsNull`
[INFO] [stderr]  --> src/types/mod.rs:1:20
[INFO] [stderr]   |
[INFO] [stderr] 1 | use cdbc::encode::{Encode, IsNull};
[INFO] [stderr]   |                    ^^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `DataType`, `TypeInfo`
[INFO] [stderr]  --> src/types/mod.rs:2:34
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::protocol::type_info::{DataType, TypeInfo};
[INFO] [stderr]   |                                  ^^^^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `MssqlTypeInfo`, `Mssql`
[INFO] [stderr]  --> src/types/mod.rs:3:13
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::{Mssql, MssqlTypeInfo};
[INFO] [stderr]   |             ^^^^^  ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `d`
[INFO] [stderr]  --> src/options/connect.rs:9:22
[INFO] [stderr]   |
[INFO] [stderr] 9 |     fn connect(&self,d:Duration) ->Result<Self::Connection, Error>
[INFO] [stderr]   |                      ^ help: if this is intentional, prefix it with an underscore: `_d`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `cursor_command` is never read
[INFO] [stderr]   --> src/protocol/done.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 7  | pub struct Done {
[INFO] [stderr]    |            ---- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 12 |     cursor_command: u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Done` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `columns` is never read
[INFO] [stderr]  --> src/protocol/order.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct Order {
[INFO] [stderr]   |            ----- field in this struct
[INFO] [stderr] 7 |     columns: Bytes,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Order` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `value` is never read
[INFO] [stderr]  --> src/protocol/return_status.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct ReturnStatus {
[INFO] [stderr]   |            ------------ field in this struct
[INFO] [stderr] 7 |     value: i32,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `ReturnStatus` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `param_ordinal`, `param_name`, `status`, `user_type`, and `flags` are never read
[INFO] [stderr]   --> src/protocol/return_value.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct ReturnValue {
[INFO] [stderr]    |            ----------- fields in this struct
[INFO] [stderr] 11 |     param_ordinal: u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 12 |     param_name: String,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 13 |     status: ReturnValueStatus,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 14 |     user_type: u32,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 15 |     flags: Flags,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `ReturnValue` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/connection/executor.rs:89:25
[INFO] [stderr]    |
[INFO] [stderr] 89 |                         r#yield!(Either::Right(MssqlRow { row, column_names, columns }));
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `yield` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/connection/executor.rs:98:29
[INFO] [stderr]     |
[INFO] [stderr] 98  | / ...                   r#yield!(Either::Left(MssqlQueryResult {
[INFO] [stderr] 99  | | ...                       rows_affected: done.affected_rows,
[INFO] [stderr] 100 | | ...                   }));
[INFO] [stderr]     | |_________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in the macro `yield` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/connection/executor.rs:110:29
[INFO] [stderr]     |
[INFO] [stderr] 110 | / ...                   r#yield!(Either::Left(MssqlQueryResult {
[INFO] [stderr] 111 | | ...                       rows_affected: done.affected_rows,
[INFO] [stderr] 112 | | ...                   }));
[INFO] [stderr]     | |_________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in the macro `yield` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `cdbc-mssql` (lib) generated 15 warnings (run `cargo fix --lib -p cdbc-mssql` to apply 5 suggestions)
[INFO] [stderr] warning: `cdbc-mssql` (lib test) generated 15 warnings (15 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cdbc_mssql-d6b3bb5b2edd3d0d)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test options::parse::it_parses_password_with_non_ascii_chars_correctly ... ok
[INFO] [stdout] test protocol::pre_login::test_encode_pre_login ... ok
[INFO] [stdout] test protocol::login::test_encode_login ... ok
[INFO] [stdout] test options::parse::it_parses_username_with_at_sign_correctly ... ok
[INFO] [stdout] test protocol::pre_login::test_decode_pre_login ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests cdbc-mssql
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5f801f0a892b19685d9dd1cf9a21321137419e3b03320f58f48663b74843eb01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f801f0a892b19685d9dd1cf9a21321137419e3b03320f58f48663b74843eb01", kill_on_drop: false }`
[INFO] [stdout] 5f801f0a892b19685d9dd1cf9a21321137419e3b03320f58f48663b74843eb01
