[INFO] cloning repository https://github.com/nahid177/rust_server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nahid177/rust_server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnahid177%2Frust_server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnahid177%2Frust_server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8a2e21f59ccce2ba4478fb1bb25ea8d371b045e8
[INFO] checking nahid177/rust_server against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnahid177%2Frust_server" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nahid177/rust_server
[INFO] finished tweaking git repo https://github.com/nahid177/rust_server
[INFO] tweaked toml for git repo https://github.com/nahid177/rust_server written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nahid177/rust_server on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nahid177/rust_server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11e433dbe4627fcbd56e4cab75b95f1d344508cd7a21a190677202a76ef4f879
[INFO] running `Command { std: "docker" "start" "-a" "11e433dbe4627fcbd56e4cab75b95f1d344508cd7a21a190677202a76ef4f879", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11e433dbe4627fcbd56e4cab75b95f1d344508cd7a21a190677202a76ef4f879", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11e433dbe4627fcbd56e4cab75b95f1d344508cd7a21a190677202a76ef4f879", kill_on_drop: false }`
[INFO] [stdout] 11e433dbe4627fcbd56e4cab75b95f1d344508cd7a21a190677202a76ef4f879
[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=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 861c4fb7947221bd0cd78280c787fa85928fc47ccd63e78071b9a375b6d438f8
[INFO] running `Command { std: "docker" "start" "-a" "861c4fb7947221bd0cd78280c787fa85928fc47ccd63e78071b9a375b6d438f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.77
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[INFO] [stderr]     Checking aws-smithy-http v0.39.0
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[INFO] [stdout] error: this type will no longer be must used: Result<warp::reply::Json, Infallible>
[INFO] [stdout]   --> src/handlers/book_handler.rs:9:88
[INFO] [stdout]    |
[INFO] [stdout]  9 |   pub async fn get_books(collection: Collection<Book>) -> Result<impl Reply, Infallible> {
[INFO] [stdout]    |  ________________________________________________________________________________________^
[INFO] [stdout] 10 | |     let mut cursor = collection.find(None, None).await.expect("Failed to fetch books");
[INFO] [stdout] 11 | |
[INFO] [stdout] 12 | |     let mut books: Vec<Book> = vec![];
[INFO] [stdout] ...  |
[INFO] [stdout] 17 | |     Ok(warp::reply::json(&books))
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<warp::reply::Json, Infallible>
[INFO] [stdout]   --> src/handlers/book_handler.rs:9:88
[INFO] [stdout]    |
[INFO] [stdout]  9 |   pub async fn get_books(collection: Collection<Book>) -> Result<impl Reply, Infallible> {
[INFO] [stdout]    |  ________________________________________________________________________________________^
[INFO] [stdout] 10 | |     let mut cursor = collection.find(None, None).await.expect("Failed to fetch books");
[INFO] [stdout] 11 | |
[INFO] [stdout] 12 | |     let mut books: Vec<Book> = vec![];
[INFO] [stdout] ...  |
[INFO] [stdout] 17 | |     Ok(warp::reply::json(&books))
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<warp::reply::Json, Infallible>
[INFO] [stdout]   --> src/handlers/book_handler.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Ok(warp::reply::json(&books))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<WithStatus<warp::reply::Json>, Infallible>
[INFO] [stdout]   --> src/handlers/book_handler.rs:20:106
[INFO] [stdout]    |
[INFO] [stdout] 20 |   pub async fn create_book(collection: Collection<Book>, new_book: Book) -> Result<impl Reply, Infallible> {
[INFO] [stdout]    |  __________________________________________________________________________________________________________^
[INFO] [stdout] 21 | |     let new_book_with_defaults = Book {
[INFO] [stdout] 22 | |         id: None,
[INFO] [stdout] 23 | |         created_at: Some(Utc::now()),
[INFO] [stdout] ...  |
[INFO] [stdout] 39 | |     Ok(warp::reply::with_status(response, StatusCode::CREATED))
[INFO] [stdout] 40 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<WithStatus<warp::reply::Json>, Infallible>
[INFO] [stdout]   --> src/handlers/book_handler.rs:20:106
[INFO] [stdout]    |
[INFO] [stdout] 20 |   pub async fn create_book(collection: Collection<Book>, new_book: Book) -> Result<impl Reply, Infallible> {
[INFO] [stdout]    |  __________________________________________________________________________________________________________^
[INFO] [stdout] 21 | |     let new_book_with_defaults = Book {
[INFO] [stdout] 22 | |         id: None,
[INFO] [stdout] 23 | |         created_at: Some(Utc::now()),
[INFO] [stdout] ...  |
[INFO] [stdout] 39 | |     Ok(warp::reply::with_status(response, StatusCode::CREATED))
[INFO] [stdout] 40 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<WithStatus<warp::reply::Json>, Infallible>
[INFO] [stdout]   --> src/handlers/book_handler.rs:31:20
[INFO] [stdout]    |
[INFO] [stdout] 31 |               return Ok(warp::reply::with_status(
[INFO] [stdout]    |  ____________________^
[INFO] [stdout] 32 | |                 warp::reply::json(&json!({"error": format!("Failed to insert book: {}", err)})),
[INFO] [stdout] 33 | |                 StatusCode::INTERNAL_SERVER_ERROR,
[INFO] [stdout] 34 | |             ));
[INFO] [stdout]    | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<WithStatus<warp::reply::Json>, Infallible>
[INFO] [stdout]   --> src/handlers/book_handler.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     Ok(warp::reply::with_status(response, StatusCode::CREATED))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_backend` (bin "rust_backend" test) due to 7 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<Json, Infallible>
[INFO] [stdout]   --> src/handlers/book_handler.rs:9:88
[INFO] [stdout]    |
[INFO] [stdout]  9 |   pub async fn get_books(collection: Collection<Book>) -> Result<impl Reply, Infallible> {
[INFO] [stdout]    |  ________________________________________________________________________________________^
[INFO] [stdout] 10 | |     let mut cursor = collection.find(None, None).await.expect("Failed to fetch books");
[INFO] [stdout] 11 | |
[INFO] [stdout] 12 | |     let mut books: Vec<Book> = vec![];
[INFO] [stdout] ...  |
[INFO] [stdout] 17 | |     Ok(warp::reply::json(&books))
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Json, Infallible>
[INFO] [stdout]   --> src/handlers/book_handler.rs:9:88
[INFO] [stdout]    |
[INFO] [stdout]  9 |   pub async fn get_books(collection: Collection<Book>) -> Result<impl Reply, Infallible> {
[INFO] [stdout]    |  ________________________________________________________________________________________^
[INFO] [stdout] 10 | |     let mut cursor = collection.find(None, None).await.expect("Failed to fetch books");
[INFO] [stdout] 11 | |
[INFO] [stdout] 12 | |     let mut books: Vec<Book> = vec![];
[INFO] [stdout] ...  |
[INFO] [stdout] 17 | |     Ok(warp::reply::json(&books))
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Json, Infallible>
[INFO] [stdout]   --> src/handlers/book_handler.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Ok(warp::reply::json(&books))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<WithStatus<Json>, Infallible>
[INFO] [stdout]   --> src/handlers/book_handler.rs:20:106
[INFO] [stdout]    |
[INFO] [stdout] 20 |   pub async fn create_book(collection: Collection<Book>, new_book: Book) -> Result<impl Reply, Infallible> {
[INFO] [stdout]    |  __________________________________________________________________________________________________________^
[INFO] [stdout] 21 | |     let new_book_with_defaults = Book {
[INFO] [stdout] 22 | |         id: None,
[INFO] [stdout] 23 | |         created_at: Some(Utc::now()),
[INFO] [stdout] ...  |
[INFO] [stdout] 39 | |     Ok(warp::reply::with_status(response, StatusCode::CREATED))
[INFO] [stdout] 40 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<WithStatus<Json>, Infallible>
[INFO] [stdout]   --> src/handlers/book_handler.rs:20:106
[INFO] [stdout]    |
[INFO] [stdout] 20 |   pub async fn create_book(collection: Collection<Book>, new_book: Book) -> Result<impl Reply, Infallible> {
[INFO] [stdout]    |  __________________________________________________________________________________________________________^
[INFO] [stdout] 21 | |     let new_book_with_defaults = Book {
[INFO] [stdout] 22 | |         id: None,
[INFO] [stdout] 23 | |         created_at: Some(Utc::now()),
[INFO] [stdout] ...  |
[INFO] [stdout] 39 | |     Ok(warp::reply::with_status(response, StatusCode::CREATED))
[INFO] [stdout] 40 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<WithStatus<Json>, Infallible>
[INFO] [stdout]   --> src/handlers/book_handler.rs:31:20
[INFO] [stdout]    |
[INFO] [stdout] 31 |               return Ok(warp::reply::with_status(
[INFO] [stdout]    |  ____________________^
[INFO] [stdout] 32 | |                 warp::reply::json(&json!({"error": format!("Failed to insert book: {}", err)})),
[INFO] [stdout] 33 | |                 StatusCode::INTERNAL_SERVER_ERROR,
[INFO] [stdout] 34 | |             ));
[INFO] [stdout]    | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<WithStatus<Json>, Infallible>
[INFO] [stdout]   --> src/handlers/book_handler.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     Ok(warp::reply::with_status(response, StatusCode::CREATED))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_backend` (bin "rust_backend") due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "861c4fb7947221bd0cd78280c787fa85928fc47ccd63e78071b9a375b6d438f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "861c4fb7947221bd0cd78280c787fa85928fc47ccd63e78071b9a375b6d438f8", kill_on_drop: false }`
[INFO] [stdout] 861c4fb7947221bd0cd78280c787fa85928fc47ccd63e78071b9a375b6d438f8
