[INFO] fetching crate nuclear-router 0.1.0...
[INFO] checking nuclear-router-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate nuclear-router 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate nuclear-router 0.1.0
[INFO] finished tweaking crates.io crate nuclear-router 0.1.0
[INFO] tweaked toml for crates.io crate nuclear-router 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nuclear-router 0.1.0 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 nuclear-router 0.1.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 343cebb078dce9453cba8ffe2cda84498f3452d93a1b5568e7f1a9e938ad11a4
[INFO] running `Command { std: "docker" "start" "-a" "343cebb078dce9453cba8ffe2cda84498f3452d93a1b5568e7f1a9e938ad11a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "343cebb078dce9453cba8ffe2cda84498f3452d93a1b5568e7f1a9e938ad11a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "343cebb078dce9453cba8ffe2cda84498f3452d93a1b5568e7f1a9e938ad11a4", kill_on_drop: false }`
[INFO] [stdout] 343cebb078dce9453cba8ffe2cda84498f3452d93a1b5568e7f1a9e938ad11a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 1a15301a3f5871c686b42027554666b664c244bd4aa74d63e353b1eecbab9314
[INFO] running `Command { std: "docker" "start" "-a" "1a15301a3f5871c686b42027554666b664c244bd4aa74d63e353b1eecbab9314", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]     Checking futures-core v0.3.1
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling indexmap v1.3.1
[INFO] [stderr]     Checking pin-project-lite v0.1.4
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]     Checking http v0.2.0
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking futures-sink v0.3.1
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking futures-task v0.3.1
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking futures-channel v0.3.1
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]     Checking regex-syntax v0.6.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking plotters v0.2.12
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking criterion-plot v0.4.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking oorandom v11.1.0
[INFO] [stderr]     Checking smallvec v1.1.0
[INFO] [stderr]     Checking regex v1.3.3
[INFO] [stderr]     Checking bstr v0.2.10
[INFO] [stderr]     Checking serde_json v1.0.45
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.0.3
[INFO] [stderr]    Compiling tokio-macros v0.2.4
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.10
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking tokio v0.2.11
[INFO] [stderr]     Checking thiserror v1.0.10
[INFO] [stderr]     Checking pin-project v0.4.8
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking h2 v0.2.1
[INFO] [stderr]     Checking criterion v0.3.1
[INFO] [stderr]     Checking hyper v0.13.2
[INFO] [stderr]     Checking nuclear-router v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> examples/hyper.rs:8:91
[INFO] [stdout]    |
[INFO] [stdout]  8 |   async fn not_found(req: Request<Body>, _: OwnedCaptures) -> Result<Response<Body>, Never> {
[INFO] [stdout]    |  ___________________________________________________________________________________________^
[INFO] [stdout]  9 | |     dbg!((req.method(), req.uri().path()));
[INFO] [stdout] 10 | |     let res = hyper::Response::builder()
[INFO] [stdout] 11 | |         .status(404)
[INFO] [stdout] ...  |
[INFO] [stdout] 14 | |     Ok(res)
[INFO] [stdout] 15 | | }
[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/hyper.rs:8:91
[INFO] [stdout]    |
[INFO] [stdout]  8 |   async fn not_found(req: Request<Body>, _: OwnedCaptures) -> Result<Response<Body>, Never> {
[INFO] [stdout]    |  ___________________________________________________________________________________________^
[INFO] [stdout]  9 | |     dbg!((req.method(), req.uri().path()));
[INFO] [stdout] 10 | |     let res = hyper::Response::builder()
[INFO] [stdout] 11 | |         .status(404)
[INFO] [stdout] ...  |
[INFO] [stdout] 14 | |     Ok(res)
[INFO] [stdout] 15 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nuclear-router` (example "hyper") due to 11 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> examples/hyper.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Ok(res)
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> examples/hyper.rs:17:90
[INFO] [stdout]    |
[INFO] [stdout] 17 |   async fn hello(_: Request<Body>, params: OwnedCaptures) -> Result<Response<Body>, Never> {
[INFO] [stdout]    |  __________________________________________________________________________________________^
[INFO] [stdout] 18 | |     let name = params.get("name").unwrap();
[INFO] [stdout] 19 | |     dbg!(name);
[INFO] [stdout] 20 | |     Ok(Response::new(Body::from(format!("hello, {}!", name))))
[INFO] [stdout] 21 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> examples/hyper.rs:17:90
[INFO] [stdout]    |
[INFO] [stdout] 17 |   async fn hello(_: Request<Body>, params: OwnedCaptures) -> Result<Response<Body>, Never> {
[INFO] [stdout]    |  __________________________________________________________________________________________^
[INFO] [stdout] 18 | |     let name = params.get("name").unwrap();
[INFO] [stdout] 19 | |     dbg!(name);
[INFO] [stdout] 20 | |     Ok(Response::new(Body::from(format!("hello, {}!", name))))
[INFO] [stdout] 21 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> examples/hyper.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Ok(Response::new(Body::from(format!("hello, {}!", name))))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> examples/hyper.rs:23:89
[INFO] [stdout]    |
[INFO] [stdout] 23 |   async fn file(_: Request<Body>, params: OwnedCaptures) -> Result<Response<Body>, Never> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 24 | |     let path = params.get("filepath").unwrap();
[INFO] [stdout] 25 | |     dbg!(path);
[INFO] [stdout] 26 | |     Ok(Response::new(Body::from(format!("access file: {}", path))))
[INFO] [stdout] 27 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> examples/hyper.rs:23:89
[INFO] [stdout]    |
[INFO] [stdout] 23 |   async fn file(_: Request<Body>, params: OwnedCaptures) -> Result<Response<Body>, Never> {
[INFO] [stdout]    |  _________________________________________________________________________________________^
[INFO] [stdout] 24 | |     let path = params.get("filepath").unwrap();
[INFO] [stdout] 25 | |     dbg!(path);
[INFO] [stdout] 26 | |     Ok(Response::new(Body::from(format!("access file: {}", path))))
[INFO] [stdout] 27 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> examples/hyper.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     Ok(Response::new(Body::from(format!("access file: {}", path))))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<SharedRouterService<Box<dyn Handler + Send + Sync>>, Infallible>
[INFO] [stdout]   --> examples/hyper.rs:42:20
[INFO] [stdout]    |
[INFO] [stdout] 42 |         async move { Ok::<_, Never>(new_router) }
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<SharedRouterService<Box<dyn Handler + Send + Sync>>, Infallible>
[INFO] [stdout]   --> examples/hyper.rs:42:22
[INFO] [stdout]    |
[INFO] [stdout] 42 |         async move { Ok::<_, Never>(new_router) }
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1a15301a3f5871c686b42027554666b664c244bd4aa74d63e353b1eecbab9314", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a15301a3f5871c686b42027554666b664c244bd4aa74d63e353b1eecbab9314", kill_on_drop: false }`
[INFO] [stdout] 1a15301a3f5871c686b42027554666b664c244bd4aa74d63e353b1eecbab9314
