[INFO] fetching crate carpo 0.2.4...
[INFO] testing carpo-0.2.4 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate carpo 0.2.4 into /workspace/builds/worker-3-tc1/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-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate carpo 0.2.4 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vcpkg v0.2.7
[INFO] [stderr]   Downloaded structopt v0.3.3
[INFO] [stderr]   Downloaded pkg-config v0.3.17
[INFO] [stderr]   Downloaded open v1.3.2
[INFO] [stderr]   Downloaded arrayref v0.3.5
[INFO] [stderr]   Downloaded unicode-segmentation v1.5.0
[INFO] [stderr]   Downloaded blake2b_simd v0.5.8
[INFO] [stderr]   Downloaded syn v1.0.7
[INFO] [stderr]   Downloaded rust-argon2 v0.5.1
[INFO] [stderr]   Downloaded redox_users v0.3.1
[INFO] [stderr]   Downloaded structopt-derive v0.3.3
[INFO] [stderr]   Downloaded linked-hash-map v0.5.2
[INFO] [stderr]   Downloaded serde_json v1.0.42
[INFO] [stderr]   Downloaded constant_time_eq v0.1.4
[INFO] [stderr]   Downloaded sciter-rs v0.5.46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 538d68810e3510b79cff31fe899c39b1289fe016b978a13b3d5e03cfd155956e
[INFO] running `Command { std: "docker" "start" "-a" "538d68810e3510b79cff31fe899c39b1289fe016b978a13b3d5e03cfd155956e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "538d68810e3510b79cff31fe899c39b1289fe016b978a13b3d5e03cfd155956e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "538d68810e3510b79cff31fe899c39b1289fe016b978a13b3d5e03cfd155956e", kill_on_drop: false }`
[INFO] [stdout] 538d68810e3510b79cff31fe899c39b1289fe016b978a13b3d5e03cfd155956e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1dcc7fa6b84c1d6c8df6f8a41b1ee6525b9bc022cddc29896e69d6fff6e0c5f7
[INFO] running `Command { std: "docker" "start" "-a" "1dcc7fa6b84c1d6c8df6f8a41b1ee6525b9bc022cddc29896e69d6fff6e0c5f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.7
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling unicode-segmentation v1.5.0
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling linked-hash-map v0.5.2
[INFO] [stderr]    Compiling vec_map v0.8.1
[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 fallible-streaming-iterator v0.1.9
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling sciter-rs v0.5.46
[INFO] [stderr]    Compiling mime v0.3.14
[INFO] [stderr]    Compiling open v1.3.2
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling libsqlite3-sys v0.16.0
[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: 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: 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: 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]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 44.06s
[INFO] running `Command { std: "docker" "inspect" "1dcc7fa6b84c1d6c8df6f8a41b1ee6525b9bc022cddc29896e69d6fff6e0c5f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dcc7fa6b84c1d6c8df6f8a41b1ee6525b9bc022cddc29896e69d6fff6e0c5f7", kill_on_drop: false }`
[INFO] [stdout] 1dcc7fa6b84c1d6c8df6f8a41b1ee6525b9bc022cddc29896e69d6fff6e0c5f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 039bcc0fe6c440e7a2a685370c0d122b112b5b30c04cd81494da788294f1b333
[INFO] running `Command { std: "docker" "start" "-a" "039bcc0fe6c440e7a2a685370c0d122b112b5b30c04cd81494da788294f1b333", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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: 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: 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: 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: 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: 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: 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]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "039bcc0fe6c440e7a2a685370c0d122b112b5b30c04cd81494da788294f1b333", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "039bcc0fe6c440e7a2a685370c0d122b112b5b30c04cd81494da788294f1b333", kill_on_drop: false }`
[INFO] [stdout] 039bcc0fe6c440e7a2a685370c0d122b112b5b30c04cd81494da788294f1b333
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5a011ff0beb8c7d387a5fd557a5492512fcd1afc2efc51ae3e62ea458a7d1345
[INFO] running `Command { std: "docker" "start" "-a" "5a011ff0beb8c7d387a5fd557a5492512fcd1afc2efc51ae3e62ea458a7d1345", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/tags.rs:158:42
[INFO] [stderr]     |
[INFO] [stderr] 158 |     fn fire(&self) -> Result<(), Box<dyn (Error)>> {
[INFO] [stderr]     |                                          ^     ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 158 -     fn fire(&self) -> Result<(), Box<dyn (Error)>> {
[INFO] [stderr] 158 +     fn fire(&self) -> Result<(), Box<dyn Error >> {
[INFO] [stderr]     |
[INFO] [stderr] 
[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)]` (part of `#[warn(unused)]`) 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 4 warnings (run `cargo fix --lib -p carpo` to apply 1 suggestion)
[INFO] [stderr] warning: `carpo` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr] warning: struct `ConstSource` is never constructed
[INFO] [stderr]   --> src/arch.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub struct ConstSource<T: Copy> {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `carpo` (bin "carpo" test) generated 5 warnings (4 duplicates)
[INFO] [stderr] warning: `carpo` (bin "carpo") generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/carpo-80b097ee3f94430b)
[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-107de840607d8be5)
[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-89bfacbeb5a7d984)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test const_source_c_str ... ok
[INFO] [stdout] test const_source_int ... ok
[INFO] [stdout] test const_source_not_equal ... ok
[INFO] [stdout] test const_source_not_equal_two_obj ... ok
[INFO] [stdout] test const_source_equal ... 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-32caa5226d77b6ff)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test learning::dirs::home_is_dir ... ok
[INFO] [stdout] test learning::tempfile::read_write_temp_file ... ok
[INFO] [stdout] test learning::tempfile::temp_directory ... 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-e34f2f274cc6a588)
[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-b14e71361484f365)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test file_by_name_not_found ... ok
[INFO] [stdout] test all_files_in_workspace ... ok
[INFO] [stdout] test delete ... ok
[INFO] [stdout] test insert ... ok
[INFO] [stdout] test file_by_name ... ok
[INFO] [stdout] test files_by_tag_name ... ok
[INFO] [stdout] test tags_by_file_id_found ... ok
[INFO] [stdout] test search_tags ... ok
[INFO] [stdout] test file_searching_found ... ok
[INFO] [stdout] test by_name_success ... ok
[INFO] [stdout] test tags_by_file_id_not_found ... ok
[INFO] [stdout] test by_name_not_exist ... ok
[INFO] [stderr]      Running tests/util.rs (/opt/rustwide/target/debug/deps/util-befc16b4d1472078)
[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] [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] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/tags.rs:158:42
[INFO] [stderr]     |
[INFO] [stderr] 158 |     fn fire(&self) -> Result<(), Box<dyn (Error)>> {
[INFO] [stderr]     |                                          ^     ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 158 -     fn fire(&self) -> Result<(), Box<dyn (Error)>> {
[INFO] [stderr] 158 +     fn fire(&self) -> Result<(), Box<dyn Error >> {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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" "5a011ff0beb8c7d387a5fd557a5492512fcd1afc2efc51ae3e62ea458a7d1345", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a011ff0beb8c7d387a5fd557a5492512fcd1afc2efc51ae3e62ea458a7d1345", kill_on_drop: false }`
[INFO] [stdout] 5a011ff0beb8c7d387a5fd557a5492512fcd1afc2efc51ae3e62ea458a7d1345