[INFO] fetching crate trout 0.4.0...
[INFO] checking trout-0.4.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate trout 0.4.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate trout 0.4.0
[INFO] finished tweaking crates.io crate trout 0.4.0
[INFO] tweaked toml for crates.io crate trout 0.4.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate trout 0.4.0 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 crates.io crate trout 0.4.0 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] afc6c85f00b71f7d3e08b22087af713236dd23a823be3e03214b6b187e8c8ee8
[INFO] running `Command { std: "docker" "start" "-a" "afc6c85f00b71f7d3e08b22087af713236dd23a823be3e03214b6b187e8c8ee8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afc6c85f00b71f7d3e08b22087af713236dd23a823be3e03214b6b187e8c8ee8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afc6c85f00b71f7d3e08b22087af713236dd23a823be3e03214b6b187e8c8ee8", kill_on_drop: false }`
[INFO] [stdout] afc6c85f00b71f7d3e08b22087af713236dd23a823be3e03214b6b187e8c8ee8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 298c1795e0f4b8358f8ac15dd8e8492da09cd7a0b302025d4f6427934919318d
[INFO] running `Command { std: "docker" "start" "-a" "298c1795e0f4b8358f8ac15dd8e8492da09cd7a0b302025d4f6427934919318d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]     Checking tracing-core v0.1.21
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking tracing v0.1.29
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]     Checking trout v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:30:32
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn method<'a>(&'a self) -> &Self::Method;
[INFO] [stdout]    |                    --          ^^^^^^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn method<'a>(&'a self) -> &'a Self::Method;
[INFO] [stdout]    |                                 ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]     Checking tokio v1.15.0
[INFO] [stderr]     Checking hyper v0.14.16
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:30:32
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn method<'a>(&'a self) -> &Self::Method;
[INFO] [stdout]    |                    --          ^^^^^^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn method<'a>(&'a self) -> &'a Self::Method;
[INFO] [stdout]    |                                 ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> examples/hello.rs:6:96
[INFO] [stdout]    |
[INFO] [stdout]  6 |           trout::Node::new().with_handler_async(hyper::Method::GET, |(target,), _, _| async move {
[INFO] [stdout]    |  ________________________________________________________________________________________________^
[INFO] [stdout]  7 | |             Ok::<_, std::convert::Infallible>(hyper::Response::new(hyper::Body::from(format!(
[INFO] [stdout]  8 | |                 "Hello, {}!",
[INFO] [stdout]  9 | |                 target
[INFO] [stdout] 10 | |             ))))
[INFO] [stdout] 11 | |         });
[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<Response<Body>, Infallible>
[INFO] [stdout]   --> examples/hello.rs:7:13
[INFO] [stdout]    |
[INFO] [stdout]  7 | /             Ok::<_, std::convert::Infallible>(hyper::Response::new(hyper::Body::from(format!(
[INFO] [stdout]  8 | |                 "Hello, {}!",
[INFO] [stdout]  9 | |                 target
[INFO] [stdout] 10 | |             ))))
[INFO] [stdout]    | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> examples/hello.rs:14:65
[INFO] [stdout]    |
[INFO] [stdout] 14 |           .with_handler_async(hyper::Method::GET, |_, _, _| async {
[INFO] [stdout]    |  _________________________________________________________________^
[INFO] [stdout] 15 | |             Ok(hyper::Response::new(hyper::Body::from("Hello, world!")))
[INFO] [stdout] 16 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> examples/hello.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |             Ok(hyper::Response::new(hyper::Body::from("Hello, world!")))
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<service::util::ServiceFn<{closure@examples/hello.rs:28:78: 28:88}, Body>, Infallible>
[INFO] [stdout]   --> examples/hello.rs:27:19
[INFO] [stdout]    |
[INFO] [stdout] 27 |               async {
[INFO] [stdout]    |  ___________________^
[INFO] [stdout] 28 | |                 Ok::<_, std::convert::Infallible>(hyper::service::service_fn(move |req| {
[INFO] [stdout] 29 | |                     let root = root.clone();
[INFO] [stdout] 30 | |                     async move {
[INFO] [stdout] ...  |
[INFO] [stdout] 36 | |                 }))
[INFO] [stdout] 37 | |             }
[INFO] [stdout]    | |_____________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<service::util::ServiceFn<{closure@examples/hello.rs:28:78: 28:88}, Body>, Infallible>
[INFO] [stdout]   --> examples/hello.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 | /                 Ok::<_, std::convert::Infallible>(hyper::service::service_fn(move |req| {
[INFO] [stdout] 29 | |                     let root = root.clone();
[INFO] [stdout] 30 | |                     async move {
[INFO] [stdout] 31 | |                         match root.route(req, ()) {
[INFO] [stdout] ...  |
[INFO] [stdout] 36 | |                 }))
[INFO] [stdout]    | |___________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> examples/hello.rs:30:32
[INFO] [stdout]    |
[INFO] [stdout] 30 |                       async move {
[INFO] [stdout]    |  ________________________________^
[INFO] [stdout] 31 | |                         match root.route(req, ()) {
[INFO] [stdout] 32 | |                             Ok(task) => task.await,
[INFO] [stdout] 33 | |                             Err(err) => Ok(err.to_simple_response()),
[INFO] [stdout] 34 | |                         }
[INFO] [stdout] 35 | |                     }
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> examples/hello.rs:31:25
[INFO] [stdout]    |
[INFO] [stdout] 31 | /                         match root.route(req, ()) {
[INFO] [stdout] 32 | |                             Ok(task) => task.await,
[INFO] [stdout] 33 | |                             Err(err) => Ok(err.to_simple_response()),
[INFO] [stdout] 34 | |                         }
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> examples/hello.rs:32:41
[INFO] [stdout]    |
[INFO] [stdout] 32 | ...                   Ok(task) => task.await,
[INFO] [stdout]    |                                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> examples/hello.rs:32:46
[INFO] [stdout]    |
[INFO] [stdout] 32 | ...                   Ok(task) => task.await,
[INFO] [stdout]    |                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> examples/hello.rs:32:41
[INFO] [stdout]    |
[INFO] [stdout] 32 | ...                   Ok(task) => task.await,
[INFO] [stdout]    |                                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> examples/hello.rs:33:41
[INFO] [stdout]    |
[INFO] [stdout] 33 | ...                   Err(err) => Ok(err.to_simple_response()),
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `trout` (example "hello") due to 12 previous errors
[INFO] running `Command { std: "docker" "inspect" "298c1795e0f4b8358f8ac15dd8e8492da09cd7a0b302025d4f6427934919318d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "298c1795e0f4b8358f8ac15dd8e8492da09cd7a0b302025d4f6427934919318d", kill_on_drop: false }`
[INFO] [stdout] 298c1795e0f4b8358f8ac15dd8e8492da09cd7a0b302025d4f6427934919318d
