[INFO] cloning repository https://github.com/Swaagie/echo-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Swaagie/echo-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwaagie%2Fecho-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwaagie%2Fecho-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1d7c3480be22547abb03b9ee12cfdd5031b7d32f
[INFO] checking Swaagie/echo-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%2FSwaagie%2Fecho-server" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Swaagie/echo-server
[INFO] finished tweaking git repo https://github.com/Swaagie/echo-server
[INFO] tweaked toml for git repo https://github.com/Swaagie/echo-server written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Swaagie/echo-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/Swaagie/echo-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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] d72e7ee020f863b70cb984d69244e1c455353d0d1e17d110288cce8c9770dbfc
[INFO] running `Command { std: "docker" "start" "-a" "d72e7ee020f863b70cb984d69244e1c455353d0d1e17d110288cce8c9770dbfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d72e7ee020f863b70cb984d69244e1c455353d0d1e17d110288cce8c9770dbfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d72e7ee020f863b70cb984d69244e1c455353d0d1e17d110288cce8c9770dbfc", kill_on_drop: false }`
[INFO] [stdout] d72e7ee020f863b70cb984d69244e1c455353d0d1e17d110288cce8c9770dbfc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e1183a1935f5ba50ec024d6bc1214a8ed8af2ec54d2f2f754b628cf734bee2fc
[INFO] running `Command { std: "docker" "start" "-a" "e1183a1935f5ba50ec024d6bc1214a8ed8af2ec54d2f2f754b628cf734bee2fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]     Checking futures-sink v0.3.15
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]     Checking indexmap v1.6.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking http-body v0.4.2
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking httpdate v1.0.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]     Checking async-stream v0.3.2
[INFO] [stderr]     Checking tokio v1.15.0
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking tokio-stream v0.1.8
[INFO] [stderr]     Checking h2 v0.3.3
[INFO] [stderr]     Checking tokio-test v0.4.2
[INFO] [stderr]     Checking hyper v0.14.9
[INFO] [stderr]     Checking echo-server v3.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     /// Context to search in
[INFO] [stdout] 20 | |     #[structopt(short, long)]
[INFO] [stdout] 21 | |     body: Option<String>,
[INFO] [stdout]    | |________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | /     /// Headers to add in the response, repeated key:value pairs
[INFO] [stdout] 24 | |     #[structopt(short, long)]
[INFO] [stdout] 25 | |     header: Option<Vec<String>>,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<hyper::service::util::ServiceFn<fn(hyper::Request<hyper::Body>) -> impl Future<Output = Result<Response<hyper::Body>, Infallible>> {handle_request}, hyper::Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:33:79
[INFO] [stdout]    |
[INFO] [stdout] 33 |       let server = Server::bind(&address).serve(make_service_fn(|_server| async {
[INFO] [stdout]    |  _______________________________________________________________________________^
[INFO] [stdout] 34 | |         Ok::<_, Infallible>(service_fn(handle_request))
[INFO] [stdout] 35 | |     }));
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<hyper::service::util::ServiceFn<fn(hyper::Request<hyper::Body>) -> impl Future<Output = Result<Response<hyper::Body>, Infallible>> {handle_request}, hyper::Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         Ok::<_, Infallible>(service_fn(handle_request))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<hyper::Body>, Infallible>
[INFO] [stdout]    --> src/main.rs:50:83
[INFO] [stdout]     |
[INFO] [stdout]  50 |   async fn handle_request(req: Request<Body>) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]     |  ___________________________________________________________________________________^
[INFO] [stdout]  51 | |     let mut response = Response::new(Body::empty());
[INFO] [stdout]  52 | |     let echo_headers = response.headers_mut();
[INFO] [stdout]  53 | |     let headers = req.headers();
[INFO] [stdout] ...   |
[INFO] [stdout] 105 | |     Ok(response)
[INFO] [stdout] 106 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<hyper::Body>, Infallible>
[INFO] [stdout]    --> src/main.rs:50:83
[INFO] [stdout]     |
[INFO] [stdout]  50 |   async fn handle_request(req: Request<Body>) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]     |  ___________________________________________________________________________________^
[INFO] [stdout]  51 | |     let mut response = Response::new(Body::empty());
[INFO] [stdout]  52 | |     let echo_headers = response.headers_mut();
[INFO] [stdout]  53 | |     let headers = req.headers();
[INFO] [stdout] ...   |
[INFO] [stdout] 105 | |     Ok(response)
[INFO] [stdout] 106 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<hyper::Body>, Infallible>
[INFO] [stdout]    --> src/main.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     Ok(response)
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<hyper::Body>, Infallible>
[INFO] [stdout]    --> src/main.rs:114:20
[INFO] [stdout]     |
[INFO] [stdout] 114 |         let resp = tokio_test::block_on(handle_request(Request::new(Body::from("hello world"))));
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<hyper::Body>, Infallible>
[INFO] [stdout]    --> src/main.rs:116:20
[INFO] [stdout]     |
[INFO] [stdout] 116 |         assert_eq!(resp.unwrap().status(), StatusCode::OK);
[INFO] [stdout]     |                    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `echo-server` (bin "echo-server" test) due to 9 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<String, Infallible>
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     /// Context to search in
[INFO] [stdout] 20 | |     #[structopt(short, long)]
[INFO] [stdout] 21 | |     body: Option<String>,
[INFO] [stdout]    | |________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | /     /// Headers to add in the response, repeated key:value pairs
[INFO] [stdout] 24 | |     #[structopt(short, long)]
[INFO] [stdout] 25 | |     header: Option<Vec<String>>,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<hyper::service::util::ServiceFn<fn(hyper::Request<Body>) -> impl Future<Output = Result<Response<Body>, Infallible>> {handle_request}, Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:33:79
[INFO] [stdout]    |
[INFO] [stdout] 33 |       let server = Server::bind(&address).serve(make_service_fn(|_server| async {
[INFO] [stdout]    |  _______________________________________________________________________________^
[INFO] [stdout] 34 | |         Ok::<_, Infallible>(service_fn(handle_request))
[INFO] [stdout] 35 | |     }));
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<hyper::service::util::ServiceFn<fn(hyper::Request<Body>) -> impl Future<Output = Result<Response<Body>, Infallible>> {handle_request}, Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         Ok::<_, Infallible>(service_fn(handle_request))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/main.rs:50:83
[INFO] [stdout]     |
[INFO] [stdout]  50 |   async fn handle_request(req: Request<Body>) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]     |  ___________________________________________________________________________________^
[INFO] [stdout]  51 | |     let mut response = Response::new(Body::empty());
[INFO] [stdout]  52 | |     let echo_headers = response.headers_mut();
[INFO] [stdout]  53 | |     let headers = req.headers();
[INFO] [stdout] ...   |
[INFO] [stdout] 105 | |     Ok(response)
[INFO] [stdout] 106 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/main.rs:50:83
[INFO] [stdout]     |
[INFO] [stdout]  50 |   async fn handle_request(req: Request<Body>) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]     |  ___________________________________________________________________________________^
[INFO] [stdout]  51 | |     let mut response = Response::new(Body::empty());
[INFO] [stdout]  52 | |     let echo_headers = response.headers_mut();
[INFO] [stdout]  53 | |     let headers = req.headers();
[INFO] [stdout] ...   |
[INFO] [stdout] 105 | |     Ok(response)
[INFO] [stdout] 106 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/main.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     Ok(response)
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `echo-server` (bin "echo-server") due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "e1183a1935f5ba50ec024d6bc1214a8ed8af2ec54d2f2f754b628cf734bee2fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1183a1935f5ba50ec024d6bc1214a8ed8af2ec54d2f2f754b628cf734bee2fc", kill_on_drop: false }`
[INFO] [stdout] e1183a1935f5ba50ec024d6bc1214a8ed8af2ec54d2f2f754b628cf734bee2fc
