[INFO] fetching crate carpo 0.2.4...
[INFO] testing carpo-0.2.4 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate carpo 0.2.4 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate carpo 0.2.4 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-5-tc2/source/Cargo.toml
[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" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.6
[INFO] [stderr]   Downloaded cc v1.0.46
[INFO] [stderr]   Downloaded objc_id v0.1.1
[INFO] [stderr]   Downloaded structopt-derive v0.3.3
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[INFO] [stderr]   Downloaded mime v0.3.14
[INFO] [stderr]   Downloaded open v1.3.2
[INFO] [stderr]   Downloaded fallible-streaming-iterator v0.1.9
[INFO] [stderr]   Downloaded synstructure v0.12.1
[INFO] [stderr]   Downloaded linked-hash-map v0.5.2
[INFO] [stderr]   Downloaded serde_derive v1.0.102
[INFO] [stderr]   Downloaded unicode-width v0.1.6
[INFO] [stderr]   Downloaded serde_json v1.0.42
[INFO] [stderr]   Downloaded objc-foundation v0.1.1
[INFO] [stderr]   Downloaded proc-macro-error v0.2.6
[INFO] [stderr]   Downloaded syn v1.0.7
[INFO] [stderr]   Downloaded serde v1.0.102
[INFO] [stderr]   Downloaded libc v0.2.65
[INFO] [stderr]   Downloaded libsqlite3-sys v0.16.0
[INFO] [stderr]   Downloaded rusqlite v0.20.0
[INFO] [stderr]   Downloaded sciter-rs v0.5.46
[INFO] [stderr]   Downloaded unicode-segmentation v1.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5cf0ca1ebb8785c4b601f1c46dbd2eb36ba66fa15bab2d7198ba8e6fe815a529
[INFO] running `Command { std: "docker" "start" "-a" "5cf0ca1ebb8785c4b601f1c46dbd2eb36ba66fa15bab2d7198ba8e6fe815a529", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5cf0ca1ebb8785c4b601f1c46dbd2eb36ba66fa15bab2d7198ba8e6fe815a529", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cf0ca1ebb8785c4b601f1c46dbd2eb36ba66fa15bab2d7198ba8e6fe815a529", kill_on_drop: false }`
[INFO] [stdout] 5cf0ca1ebb8785c4b601f1c46dbd2eb36ba66fa15bab2d7198ba8e6fe815a529
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7bd9b2159fc5c2117928a57a7a7ea455bedf15810b69d54085cf736867cf44f
[INFO] running `Command { std: "docker" "start" "-a" "c7bd9b2159fc5c2117928a57a7a7ea455bedf15810b69d54085cf736867cf44f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v1.0.7
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling cc v1.0.46
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling unicode-segmentation v1.5.0
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling linked-hash-map v0.5.2
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling fallible-streaming-iterator v0.1.9
[INFO] [stderr]    Compiling open v1.3.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling mime v0.3.14
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling libsqlite3-sys v0.16.0
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling sciter-rs v0.5.46
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling 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]    Compiling structopt v0.3.3
[INFO] [stderr]    Compiling serde_json v1.0.42
[INFO] [stderr]    Compiling rusqlite v0.20.0
[INFO] [stderr]    Compiling carpo v0.2.4 (/opt/rustwide/workdir)
[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)]` 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: 3 warnings emitted
[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)]` 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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.47s
[INFO] running `Command { std: "docker" "inspect" "c7bd9b2159fc5c2117928a57a7a7ea455bedf15810b69d54085cf736867cf44f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7bd9b2159fc5c2117928a57a7a7ea455bedf15810b69d54085cf736867cf44f", kill_on_drop: false }`
[INFO] [stdout] c7bd9b2159fc5c2117928a57a7a7ea455bedf15810b69d54085cf736867cf44f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e281c146886915a94f4353de096f7ac260c15b8002e288f14cb0bcad15fe6f79
[INFO] running `Command { std: "docker" "start" "-a" "e281c146886915a94f4353de096f7ac260c15b8002e288f14cb0bcad15fe6f79", kill_on_drop: false }`
[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)]` 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] [stderr]    Compiling carpo v0.2.4 (/opt/rustwide/workdir)
[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: 3 warnings emitted
[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)]` 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: 3 warnings emitted
[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)]` 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)]` 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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "e281c146886915a94f4353de096f7ac260c15b8002e288f14cb0bcad15fe6f79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e281c146886915a94f4353de096f7ac260c15b8002e288f14cb0bcad15fe6f79", kill_on_drop: false }`
[INFO] [stdout] e281c146886915a94f4353de096f7ac260c15b8002e288f14cb0bcad15fe6f79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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" "+beta-2023-04-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 076da842c602e43718734b9b0d67b49962a52d7be70d1844113c9ebd996c8c66
[INFO] running `Command { std: "docker" "start" "-a" "076da842c602e43718734b9b0d67b49962a52d7be70d1844113c9ebd996c8c66", kill_on_drop: false }`
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/tags.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 | /         &self.conn.execute(
[INFO] [stderr] 30 | |             r#"
[INFO] [stderr] 31 | |             create table if not exists tags(
[INFO] [stderr] 32 | |                 id integer primary key autoincrement,
[INFO] [stderr] ...  |
[INFO] [stderr] 35 | |             NO_PARAMS,
[INFO] [stderr] 36 | |         )?;
[INFO] [stderr]    | |__________^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let _ = &self.conn.execute(
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/tags.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 | /         &self.conn.execute(
[INFO] [stderr] 39 | |             r#"
[INFO] [stderr] 40 | |                CREATE TABLE IF NOT EXISTS files(
[INFO] [stderr] 41 | |                     id integer primary key autoincrement,
[INFO] [stderr] ...  |
[INFO] [stderr] 45 | |             NO_PARAMS,
[INFO] [stderr] 46 | |         );
[INFO] [stderr]    | |_________^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 38 |         let _ = &self.conn.execute(
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/tags.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 | /         &self.conn.execute(
[INFO] [stderr] 49 | |             r#"
[INFO] [stderr] 50 | |                 CREATE TABLE IF NOT EXISTS files_tags(
[INFO] [stderr] 51 | |                     id integer primary key autoincrement,
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |             NO_PARAMS,
[INFO] [stderr] 58 | |         );
[INFO] [stderr]    | |_________^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 48 |         let _ = &self.conn.execute(
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `carpo` (lib) generated 3 warnings
[INFO] [stderr] warning: `carpo` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr] warning: `carpo` (bin "carpo" test) generated 3 warnings (3 duplicates)
[INFO] [stderr] warning: `carpo` (bin "carpo") generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/carpo-6ecd3a1edeab8ef5)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/carpo-655e1c6c6801dffb)
[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] [stderr]      Running tests/arch.rs (/opt/rustwide/target/debug/deps/arch-e3baaf842397ab26)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test const_source_equal ... ok
[INFO] [stdout] test const_source_c_str ... ok
[INFO] [stdout] test const_source_not_equal ... ok
[INFO] [stdout] test const_source_int ... ok
[INFO] [stdout] test const_source_not_equal_two_obj ... 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]      Running tests/mod.rs (/opt/rustwide/target/debug/deps/mod-ffd7dbe556df453f)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test learning::tempfile::read_write_temp_file ... ok
[INFO] [stdout] test learning::tempfile::temp_directory ... ok
[INFO] [stdout] test learning::dirs::home_is_dir ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/simple.rs (/opt/rustwide/target/debug/deps/simple-b64dcef70c109a2b)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test simple ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/tags.rs (/opt/rustwide/target/debug/deps/tags-7e55e8696f8b8427)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test by_name_not_exist ... ok
[INFO] [stdout] test files_by_tag_name ... ok
[INFO] [stdout] test all_files_in_workspace ... ok
[INFO] [stdout] test search_tags ... ok
[INFO] [stdout] test delete ... ok
[INFO] [stdout] test tags_by_file_id_not_found ... ok
[INFO] [stdout] test by_name_success ... ok
[INFO] [stdout] test file_searching_found ... ok
[INFO] [stdout] test file_by_name ... ok
[INFO] [stdout] test insert ... ok
[INFO] [stdout] test file_by_name_not_found ... ok
[INFO] [stdout] test tags_by_file_id_found ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/util.rs (/opt/rustwide/target/debug/deps/util-fe6c3d4ac8941000)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test simple ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests carpo
[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" "076da842c602e43718734b9b0d67b49962a52d7be70d1844113c9ebd996c8c66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "076da842c602e43718734b9b0d67b49962a52d7be70d1844113c9ebd996c8c66", kill_on_drop: false }`
[INFO] [stdout] 076da842c602e43718734b9b0d67b49962a52d7be70d1844113c9ebd996c8c66
