[INFO] fetching crate carpo 0.2.4...
[INFO] checking carpo-0.2.4 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate carpo 0.2.4 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate carpo 0.2.4
[INFO] finished tweaking crates.io crate carpo 0.2.4
[INFO] tweaked toml for crates.io crate carpo 0.2.4 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate carpo 0.2.4 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate carpo 0.2.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a99a657e65b64fa9718c1ebfb60fce64db5ef657eec013ab548f02c846e4c723
[INFO] running `Command { std: "docker" "start" "-a" "a99a657e65b64fa9718c1ebfb60fce64db5ef657eec013ab548f02c846e4c723", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a99a657e65b64fa9718c1ebfb60fce64db5ef657eec013ab548f02c846e4c723", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a99a657e65b64fa9718c1ebfb60fce64db5ef657eec013ab548f02c846e4c723", kill_on_drop: false }`
[INFO] [stdout] a99a657e65b64fa9718c1ebfb60fce64db5ef657eec013ab548f02c846e4c723
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22e1ecb6b23e92545e2bbb15a0bf6f96f1de87eadcc25a9a3dc964d9289a2415
[INFO] running `Command { std: "docker" "start" "-a" "22e1ecb6b23e92545e2bbb15a0bf6f96f1de87eadcc25a9a3dc964d9289a2415", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.7
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling cc v1.0.46
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]    Compiling unicode-segmentation v1.5.0
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking open v1.3.2
[INFO] [stderr]     Checking mime v0.3.14
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]    Compiling libsqlite3-sys v0.16.0
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking sciter-rs v0.5.46
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]    Compiling structopt-derive v0.3.3
[INFO] [stderr]     Checking structopt v0.3.3
[INFO] [stderr]     Checking serde_json v1.0.42
[INFO] [stderr]     Checking rusqlite v0.20.0
[INFO] [stderr]     Checking carpo v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/tags.rs:158:42
[INFO] [stdout]     |
[INFO] [stdout] 158 |     fn fire(&self) -> Result<(), Box<dyn (Error)>> {
[INFO] [stdout]     |                                          ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 158 -     fn fire(&self) -> Result<(), Box<dyn (Error)>> {
[INFO] [stdout] 158 +     fn fire(&self) -> Result<(), Box<dyn Error >> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/tags.rs:158:42
[INFO] [stdout]     |
[INFO] [stdout] 158 |     fn fire(&self) -> Result<(), Box<dyn (Error)>> {
[INFO] [stdout]     |                                          ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 158 -     fn fire(&self) -> Result<(), Box<dyn (Error)>> {
[INFO] [stdout] 158 +     fn fire(&self) -> Result<(), Box<dyn Error >> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/tags.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | /         &self.conn.execute(
[INFO] [stdout] 30 | |             r#"
[INFO] [stdout] 31 | |             create table if not exists tags(
[INFO] [stdout] 32 | |                 id integer primary key autoincrement,
[INFO] [stdout] ...  |
[INFO] [stdout] 35 | |             NO_PARAMS,
[INFO] [stdout] 36 | |         )?;
[INFO] [stdout]    | |__________^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let _ = &self.conn.execute(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/tags.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 | /         &self.conn.execute(
[INFO] [stdout] 39 | |             r#"
[INFO] [stdout] 40 | |                CREATE TABLE IF NOT EXISTS files(
[INFO] [stdout] 41 | |                     id integer primary key autoincrement,
[INFO] [stdout] ...  |
[INFO] [stdout] 45 | |             NO_PARAMS,
[INFO] [stdout] 46 | |         );
[INFO] [stdout]    | |_________^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let _ = &self.conn.execute(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/tags.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 | /         &self.conn.execute(
[INFO] [stdout] 49 | |             r#"
[INFO] [stdout] 50 | |                 CREATE TABLE IF NOT EXISTS files_tags(
[INFO] [stdout] 51 | |                     id integer primary key autoincrement,
[INFO] [stdout] ...  |
[INFO] [stdout] 57 | |             NO_PARAMS,
[INFO] [stdout] 58 | |         );
[INFO] [stdout]    | |_________^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let _ = &self.conn.execute(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/tags.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | /         &self.conn.execute(
[INFO] [stdout] 30 | |             r#"
[INFO] [stdout] 31 | |             create table if not exists tags(
[INFO] [stdout] 32 | |                 id integer primary key autoincrement,
[INFO] [stdout] ...  |
[INFO] [stdout] 35 | |             NO_PARAMS,
[INFO] [stdout] 36 | |         )?;
[INFO] [stdout]    | |__________^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let _ = &self.conn.execute(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/tags.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 | /         &self.conn.execute(
[INFO] [stdout] 39 | |             r#"
[INFO] [stdout] 40 | |                CREATE TABLE IF NOT EXISTS files(
[INFO] [stdout] 41 | |                     id integer primary key autoincrement,
[INFO] [stdout] ...  |
[INFO] [stdout] 45 | |             NO_PARAMS,
[INFO] [stdout] 46 | |         );
[INFO] [stdout]    | |_________^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let _ = &self.conn.execute(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/tags.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 | /         &self.conn.execute(
[INFO] [stdout] 49 | |             r#"
[INFO] [stdout] 50 | |                 CREATE TABLE IF NOT EXISTS files_tags(
[INFO] [stdout] 51 | |                     id integer primary key autoincrement,
[INFO] [stdout] ...  |
[INFO] [stdout] 57 | |             NO_PARAMS,
[INFO] [stdout] 58 | |         );
[INFO] [stdout]    | |_________^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let _ = &self.conn.execute(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/tags.rs:158:42
[INFO] [stdout]     |
[INFO] [stdout] 158 |     fn fire(&self) -> Result<(), Box<dyn (Error)>> {
[INFO] [stdout]     |                                          ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 158 -     fn fire(&self) -> Result<(), Box<dyn (Error)>> {
[INFO] [stdout] 158 +     fn fire(&self) -> Result<(), Box<dyn Error >> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/tags.rs:158:42
[INFO] [stdout]     |
[INFO] [stdout] 158 |     fn fire(&self) -> Result<(), Box<dyn (Error)>> {
[INFO] [stdout]     |                                          ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 158 -     fn fire(&self) -> Result<(), Box<dyn (Error)>> {
[INFO] [stdout] 158 +     fn fire(&self) -> Result<(), Box<dyn Error >> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConstSource` is never constructed
[INFO] [stdout]   --> src/arch.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct ConstSource<T: Copy> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConstSource` is never constructed
[INFO] [stdout]   --> src/arch.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct ConstSource<T: Copy> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         tag_name: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         file_name: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 | /         /// The keyword to search.
[INFO] [stdout] 35 | |         keyword: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:49:11
[INFO] [stdout]    |
[INFO] [stdout] 49 |     Add { name: String },
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:51:14
[INFO] [stdout]    |
[INFO] [stdout] 51 |     Delete { name: String },
[INFO] [stdout]    |              ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 | /         /// File name we want the Tag attach to.
[INFO] [stdout] 55 | |         file_name: String,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 | /         /// Tag name we want to do the attach.
[INFO] [stdout] 57 | |         tag_name: String,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 | /         /// File name we want the Tag detach to.
[INFO] [stdout] 61 | |         file_name: String,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 | /         /// Tag name we want to do the detach.
[INFO] [stdout] 63 | |         tag_name: String,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         tag_name: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         file_name: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 | /         /// The keyword to search.
[INFO] [stdout] 35 | |         keyword: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:49:11
[INFO] [stdout]    |
[INFO] [stdout] 49 |     Add { name: String },
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:51:14
[INFO] [stdout]    |
[INFO] [stdout] 51 |     Delete { name: String },
[INFO] [stdout]    |              ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 | /         /// File name we want the Tag attach to.
[INFO] [stdout] 55 | |         file_name: String,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 | /         /// Tag name we want to do the attach.
[INFO] [stdout] 57 | |         tag_name: String,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/tags.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | /         &self.conn.execute(
[INFO] [stdout] 30 | |             r#"
[INFO] [stdout] 31 | |             create table if not exists tags(
[INFO] [stdout] 32 | |                 id integer primary key autoincrement,
[INFO] [stdout] ...  |
[INFO] [stdout] 35 | |             NO_PARAMS,
[INFO] [stdout] 36 | |         )?;
[INFO] [stdout]    | |__________^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let _ = &self.conn.execute(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/tags.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 | /         &self.conn.execute(
[INFO] [stdout] 39 | |             r#"
[INFO] [stdout] 40 | |                CREATE TABLE IF NOT EXISTS files(
[INFO] [stdout] 41 | |                     id integer primary key autoincrement,
[INFO] [stdout] ...  |
[INFO] [stdout] 45 | |             NO_PARAMS,
[INFO] [stdout] 46 | |         );
[INFO] [stdout]    | |_________^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let _ = &self.conn.execute(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/tags.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 | /         &self.conn.execute(
[INFO] [stdout] 49 | |             r#"
[INFO] [stdout] 50 | |                 CREATE TABLE IF NOT EXISTS files_tags(
[INFO] [stdout] 51 | |                     id integer primary key autoincrement,
[INFO] [stdout] ...  |
[INFO] [stdout] 57 | |             NO_PARAMS,
[INFO] [stdout] 58 | |         );
[INFO] [stdout]    | |_________^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let _ = &self.conn.execute(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 | /         /// File name we want the Tag detach to.
[INFO] [stdout] 61 | |         file_name: String,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 | /         /// Tag name we want to do the detach.
[INFO] [stdout] 63 | |         tag_name: String,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/tags.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | /         &self.conn.execute(
[INFO] [stdout] 30 | |             r#"
[INFO] [stdout] 31 | |             create table if not exists tags(
[INFO] [stdout] 32 | |                 id integer primary key autoincrement,
[INFO] [stdout] ...  |
[INFO] [stdout] 35 | |             NO_PARAMS,
[INFO] [stdout] 36 | |         )?;
[INFO] [stdout]    | |__________^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let _ = &self.conn.execute(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/tags.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 | /         &self.conn.execute(
[INFO] [stdout] 39 | |             r#"
[INFO] [stdout] 40 | |                CREATE TABLE IF NOT EXISTS files(
[INFO] [stdout] 41 | |                     id integer primary key autoincrement,
[INFO] [stdout] ...  |
[INFO] [stdout] 45 | |             NO_PARAMS,
[INFO] [stdout] 46 | |         );
[INFO] [stdout]    | |_________^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let _ = &self.conn.execute(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/tags.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 | /         &self.conn.execute(
[INFO] [stdout] 49 | |             r#"
[INFO] [stdout] 50 | |                 CREATE TABLE IF NOT EXISTS files_tags(
[INFO] [stdout] 51 | |                     id integer primary key autoincrement,
[INFO] [stdout] ...  |
[INFO] [stdout] 57 | |             NO_PARAMS,
[INFO] [stdout] 58 | |         );
[INFO] [stdout]    | |_________^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let _ = &self.conn.execute(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `carpo` (bin "carpo" test) due to 9 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `carpo` (bin "carpo") due to 9 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "22e1ecb6b23e92545e2bbb15a0bf6f96f1de87eadcc25a9a3dc964d9289a2415", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22e1ecb6b23e92545e2bbb15a0bf6f96f1de87eadcc25a9a3dc964d9289a2415", kill_on_drop: false }`
[INFO] [stdout] 22e1ecb6b23e92545e2bbb15a0bf6f96f1de87eadcc25a9a3dc964d9289a2415