[INFO] fetching crate sprattus 0.0.1...
[INFO] testing sprattus-0.0.1 against 1.47.0 for beta-1.48-1
[INFO] extracting crate sprattus 0.0.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate sprattus 0.0.1 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sprattus 0.0.1
[INFO] finished tweaking crates.io crate sprattus 0.0.1
[INFO] tweaked toml for crates.io crate sprattus 0.0.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c5bf28ae093115597d1112763d90b2b876444582423fa49baddfcbbe6b74cd87
[INFO] running `Command { std: "docker" "start" "-a" "c5bf28ae093115597d1112763d90b2b876444582423fa49baddfcbbe6b74cd87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5bf28ae093115597d1112763d90b2b876444582423fa49baddfcbbe6b74cd87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5bf28ae093115597d1112763d90b2b876444582423fa49baddfcbbe6b74cd87", kill_on_drop: false }`
[INFO] [stdout] c5bf28ae093115597d1112763d90b2b876444582423fa49baddfcbbe6b74cd87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a69900cfdfdb63254d3f4b32238989c962e56b815aab4afe076d1fd25e63b6de
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a69900cfdfdb63254d3f4b32238989c962e56b815aab4afe076d1fd25e63b6de", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling subtle v1.0.0
[INFO] [stderr]    Compiling md5 v0.6.1
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling strfmt v0.1.6
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling generic-array v0.13.2
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling tokio v0.2.22
[INFO] [stderr]    Compiling crypto-mac v0.7.0
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling hmac v0.7.1
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling postgres-protocol v0.5.0-alpha.2
[INFO] [stderr]    Compiling postgres-types v0.1.0-alpha.2
[INFO] [stderr]    Compiling tokio-util v0.2.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling futures-macro v0.3.6
[INFO] [stderr]    Compiling sprattus-derive v0.0.1
[INFO] [stderr]    Compiling pin-project v0.4.27
[INFO] [stderr]    Compiling futures-util v0.3.6
[INFO] [stderr]    Compiling futures-executor v0.3.6
[INFO] [stderr]    Compiling futures v0.3.6
[INFO] [stderr]    Compiling tokio-postgres v0.5.0-alpha.2
[INFO] [stderr]    Compiling sprattus v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.91s
[INFO] running `Command { std: "docker" "inspect" "a69900cfdfdb63254d3f4b32238989c962e56b815aab4afe076d1fd25e63b6de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a69900cfdfdb63254d3f4b32238989c962e56b815aab4afe076d1fd25e63b6de", kill_on_drop: false }`
[INFO] [stdout] a69900cfdfdb63254d3f4b32238989c962e56b815aab4afe076d1fd25e63b6de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f888c17c417ba8a05ff34738aebfe3154942014b1004dd3b950f2d9bee279c0c
[INFO] running `Command { std: "docker" "start" "-a" "f888c17c417ba8a05ff34738aebfe3154942014b1004dd3b950f2d9bee279c0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling sprattus v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `Command { std: "docker" "inspect" "f888c17c417ba8a05ff34738aebfe3154942014b1004dd3b950f2d9bee279c0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f888c17c417ba8a05ff34738aebfe3154942014b1004dd3b950f2d9bee279c0c", kill_on_drop: false }`
[INFO] [stdout] f888c17c417ba8a05ff34738aebfe3154942014b1004dd3b950f2d9bee279c0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 91ba6e2e1a246ac81e398e1332eb63140e56bbba6773a937d30157b3062b4cd4
[INFO] running `Command { std: "docker" "start" "-a" "91ba6e2e1a246ac81e398e1332eb63140e56bbba6773a937d30157b3062b4cd4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.26s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sprattus-48e4e73d02a6f447
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sprattus
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test src/lib.rs - (line 18) ... ok
[INFO] [stdout] test src/lib.rs - (line 133) ... ok
[INFO] [stdout] test src/lib.rs - (line 25) ... ok
[INFO] [stdout] test src/lib.rs - (line 146) ... ok
[INFO] [stdout] test src/lib.rs - (line 118) ... ok
[INFO] [stdout] test src/connection.rs - connection::Connection::delete (line 391) ... FAILED
[INFO] [stdout] test src/connection.rs - connection::Connection::update (line 162) ... FAILED
[INFO] [stdout] test src/connection.rs - connection::Connection::new (line 25) ... FAILED
[INFO] [stdout] test src/connection.rs - connection::Connection::delete_multiple (line 435) ... FAILED
[INFO] [stdout] test src/connection.rs - connection::Connection::create (line 292) ... FAILED
[INFO] [stdout] test src/connection.rs - connection::Connection::update_multiple (line 220) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 38) ... FAILED
[INFO] [stdout] test src/connection.rs - connection::Connection::query (line 131) ... FAILED
[INFO] [stdout] test src/connection.rs - connection::Connection::create_multiple (line 336) ... FAILED
[INFO] [stdout] test src/connection.rs - connection::Connection::query_multiple (line 77) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/connection.rs - connection::Connection::delete (line 391) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]   --> src/connection.rs:402:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[tokio::main]
[INFO] [stdout]    |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `main` has invalid return type `impl std::future::Future`
[INFO] [stdout]   --> src/connection.rs:403:20
[INFO] [stdout]    |
[INFO] [stdout] 14 | async fn main() -> Result<(), Error> {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^ `main` can only return types that implement `std::process::Termination`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using `()`, or a `Result`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]   --> src/connection.rs:403:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | async fn main() -> Result<(), Error> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/connection.rs - connection::Connection::update (line 162) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]   --> src/connection.rs:173:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[tokio::main]
[INFO] [stdout]    |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `main` has invalid return type `impl std::future::Future`
[INFO] [stdout]   --> src/connection.rs:174:20
[INFO] [stdout]    |
[INFO] [stdout] 14 | async fn main() -> Result<(), Error> {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^ `main` can only return types that implement `std::process::Termination`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using `()`, or a `Result`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]   --> src/connection.rs:174:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | async fn main() -> Result<(), Error> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/connection.rs - connection::Connection::new (line 25) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]  --> src/connection.rs:28:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[tokio::main]
[INFO] [stdout]   |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `main` has invalid return type `impl std::future::Future`
[INFO] [stdout]  --> src/connection.rs:29:20
[INFO] [stdout]   |
[INFO] [stdout] 6 | async fn main() -> Result<(), Error> {
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^ `main` can only return types that implement `std::process::Termination`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider using `()`, or a `Result`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/connection.rs:29:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | async fn main() -> Result<(), Error> {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/connection.rs - connection::Connection::delete_multiple (line 435) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]   --> src/connection.rs:446:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[tokio::main]
[INFO] [stdout]    |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `main` has invalid return type `impl std::future::Future`
[INFO] [stdout]   --> src/connection.rs:447:20
[INFO] [stdout]    |
[INFO] [stdout] 14 | async fn main() -> Result<(), Error> {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^ `main` can only return types that implement `std::process::Termination`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using `()`, or a `Result`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]   --> src/connection.rs:447:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | async fn main() -> Result<(), Error> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/connection.rs - connection::Connection::create (line 292) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]   --> src/connection.rs:303:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[tokio::main]
[INFO] [stdout]    |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `main` has invalid return type `impl std::future::Future`
[INFO] [stdout]   --> src/connection.rs:304:20
[INFO] [stdout]    |
[INFO] [stdout] 14 | async fn main() -> Result<(), Error> {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^ `main` can only return types that implement `std::process::Termination`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using `()`, or a `Result`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]   --> src/connection.rs:304:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | async fn main() -> Result<(), Error> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/connection.rs - connection::Connection::update_multiple (line 220) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]   --> src/connection.rs:231:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[tokio::main]
[INFO] [stdout]    |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `main` has invalid return type `impl std::future::Future`
[INFO] [stdout]   --> src/connection.rs:232:20
[INFO] [stdout]    |
[INFO] [stdout] 14 | async fn main() -> Result<(), Error> {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^ `main` can only return types that implement `std::process::Termination`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using `()`, or a `Result`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]   --> src/connection.rs:232:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | async fn main() -> Result<(), Error> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 38) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]   --> src/lib.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | #[tokio::main]
[INFO] [stdout]    |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `main` has invalid return type `impl std::future::Future`
[INFO] [stdout]   --> src/lib.rs:51:20
[INFO] [stdout]    |
[INFO] [stdout] 15 | async fn main() -> Result<(), Error>{
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^ `main` can only return types that implement `std::process::Termination`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using `()`, or a `Result`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]   --> src/lib.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | async fn main() -> Result<(), Error>{
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/connection.rs - connection::Connection::query (line 131) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]   --> src/connection.rs:142:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[tokio::main]
[INFO] [stdout]    |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `main` has invalid return type `impl std::future::Future`
[INFO] [stdout]   --> src/connection.rs:143:20
[INFO] [stdout]    |
[INFO] [stdout] 14 | async fn main() -> Result<(), Error> {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^ `main` can only return types that implement `std::process::Termination`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using `()`, or a `Result`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]   --> src/connection.rs:143:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | async fn main() -> Result<(), Error> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/connection.rs - connection::Connection::create_multiple (line 336) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]   --> src/connection.rs:347:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[tokio::main]
[INFO] [stdout]    |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `main` has invalid return type `impl std::future::Future`
[INFO] [stdout]   --> src/connection.rs:348:20
[INFO] [stdout]    |
[INFO] [stdout] 14 | async fn main() -> Result<(), Error> {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^ `main` can only return types that implement `std::process::Termination`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using `()`, or a `Result`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]   --> src/connection.rs:348:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | async fn main() -> Result<(), Error> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/connection.rs - connection::Connection::query_multiple (line 77) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]   --> src/connection.rs:87:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[tokio::main]
[INFO] [stdout]    |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `main` has invalid return type `impl std::future::Future`
[INFO] [stdout]   --> src/connection.rs:88:20
[INFO] [stdout]    |
[INFO] [stdout] 13 | async fn main() -> Result<(), Error> {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^ `main` can only return types that implement `std::process::Termination`
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using `()`, or a `Result`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]   --> src/connection.rs:88:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | async fn main() -> Result<(), Error> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/connection.rs - connection::Connection::create (line 292)
[INFO] [stdout]     src/connection.rs - connection::Connection::create_multiple (line 336)
[INFO] [stdout]     src/connection.rs - connection::Connection::delete (line 391)
[INFO] [stdout]     src/connection.rs - connection::Connection::delete_multiple (line 435)
[INFO] [stdout]     src/connection.rs - connection::Connection::new (line 25)
[INFO] [stdout]     src/connection.rs - connection::Connection::query (line 131)
[INFO] [stdout]     src/connection.rs - connection::Connection::query_multiple (line 77)
[INFO] [stdout]     src/connection.rs - connection::Connection::update (line 162)
[INFO] [stdout]     src/connection.rs - connection::Connection::update_multiple (line 220)
[INFO] [stdout]     src/lib.rs - (line 38)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 5 passed; 10 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "91ba6e2e1a246ac81e398e1332eb63140e56bbba6773a937d30157b3062b4cd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91ba6e2e1a246ac81e398e1332eb63140e56bbba6773a937d30157b3062b4cd4", kill_on_drop: false }`
[INFO] [stdout] 91ba6e2e1a246ac81e398e1332eb63140e56bbba6773a937d30157b3062b4cd4
