[INFO] cloning repository https://github.com/halfzebra/distant-echo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/halfzebra/distant-echo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhalfzebra%2Fdistant-echo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhalfzebra%2Fdistant-echo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3c3d740c0d3720fab65a9abff7f74590cda610d1
[INFO] checking halfzebra/distant-echo 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%2Fhalfzebra%2Fdistant-echo" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/halfzebra/distant-echo
[INFO] finished tweaking git repo https://github.com/halfzebra/distant-echo
[INFO] tweaked toml for git repo https://github.com/halfzebra/distant-echo written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/halfzebra/distant-echo 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/halfzebra/distant-echo 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] [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] 3d52b52955dec46c84abfe9f78f4c7a8ed6576e2c3ade66b44bfc120dfcbe06f
[INFO] running `Command { std: "docker" "start" "-a" "3d52b52955dec46c84abfe9f78f4c7a8ed6576e2c3ade66b44bfc120dfcbe06f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d52b52955dec46c84abfe9f78f4c7a8ed6576e2c3ade66b44bfc120dfcbe06f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d52b52955dec46c84abfe9f78f4c7a8ed6576e2c3ade66b44bfc120dfcbe06f", kill_on_drop: false }`
[INFO] [stdout] 3d52b52955dec46c84abfe9f78f4c7a8ed6576e2c3ade66b44bfc120dfcbe06f
[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] 8f7ae2374b6a71f4e8fb245132d3b1c328d51ef83278f9009dc0126754a66ef5
[INFO] running `Command { std: "docker" "start" "-a" "8f7ae2374b6a71f4e8fb245132d3b1c328d51ef83278f9009dc0126754a66ef5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking arc-swap v0.4.6
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking futures-io v0.3.4
[INFO] [stderr]     Checking futures-task v0.3.4
[INFO] [stderr]     Checking pin-project-lite v0.1.4
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.10
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking tokio v0.2.20
[INFO] [stderr]     Checking pin-project v0.4.10
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking h2 v0.2.4
[INFO] [stderr]     Checking hyper v0.13.5
[INFO] [stderr]     Checking distant-echo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:10:82
[INFO] [stdout]    |
[INFO] [stdout] 10 |   async fn echo_response(req: Request<Body>) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]    |  __________________________________________________________________________________^
[INFO] [stdout] 11 | |     let delay_ms = 10000;
[INFO] [stdout] 12 | |     info!("{} {}", req.method(), req.uri());
[INFO] [stdout] 13 | |     info!("Delaying by {}ms", delay_ms);
[INFO] [stdout] 14 | |     delay_for(Duration::from_millis(delay_ms)).await;
[INFO] [stdout] 15 | |     Ok(Response::new(format!("{:?}", req.headers()).into()))
[INFO] [stdout] 16 | | }
[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]   --> src/main.rs:10:82
[INFO] [stdout]    |
[INFO] [stdout] 10 |   async fn echo_response(req: Request<Body>) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]    |  __________________________________________________________________________________^
[INFO] [stdout] 11 | |     let delay_ms = 10000;
[INFO] [stdout] 12 | |     info!("{} {}", req.method(), req.uri());
[INFO] [stdout] 13 | |     info!("Delaying by {}ms", delay_ms);
[INFO] [stdout] 14 | |     delay_for(Duration::from_millis(delay_ms)).await;
[INFO] [stdout] 15 | |     Ok(Response::new(format!("{:?}", req.headers()).into()))
[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]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Ok(Response::new(format!("{:?}", req.headers()).into()))
[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 std::future::Future<Output = Result<Response<Body>, Infallible>> {echo_response}, Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |           async {
[INFO] [stdout]    |  _______________^
[INFO] [stdout] 28 | |             // service_fn converts our function into a `Service`
[INFO] [stdout] 29 | |             Ok::<_, Infallible>(service_fn(echo_response))
[INFO] [stdout] 30 | |         }
[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 std::future::Future<Output = Result<Response<Body>, Infallible>> {echo_response}, Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             Ok::<_, Infallible>(service_fn(echo_response))
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `distant-echo` (bin "distant-echo") due to 5 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<Response<Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:10:82
[INFO] [stdout]    |
[INFO] [stdout] 10 |   async fn echo_response(req: Request<Body>) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]    |  __________________________________________________________________________________^
[INFO] [stdout] 11 | |     let delay_ms = 10000;
[INFO] [stdout] 12 | |     info!("{} {}", req.method(), req.uri());
[INFO] [stdout] 13 | |     info!("Delaying by {}ms", delay_ms);
[INFO] [stdout] 14 | |     delay_for(Duration::from_millis(delay_ms)).await;
[INFO] [stdout] 15 | |     Ok(Response::new(format!("{:?}", req.headers()).into()))
[INFO] [stdout] 16 | | }
[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]   --> src/main.rs:10:82
[INFO] [stdout]    |
[INFO] [stdout] 10 |   async fn echo_response(req: Request<Body>) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]    |  __________________________________________________________________________________^
[INFO] [stdout] 11 | |     let delay_ms = 10000;
[INFO] [stdout] 12 | |     info!("{} {}", req.method(), req.uri());
[INFO] [stdout] 13 | |     info!("Delaying by {}ms", delay_ms);
[INFO] [stdout] 14 | |     delay_for(Duration::from_millis(delay_ms)).await;
[INFO] [stdout] 15 | |     Ok(Response::new(format!("{:?}", req.headers()).into()))
[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]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Ok(Response::new(format!("{:?}", req.headers()).into()))
[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 std::future::Future<Output = Result<Response<Body>, Infallible>> {echo_response}, Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |           async {
[INFO] [stdout]    |  _______________^
[INFO] [stdout] 28 | |             // service_fn converts our function into a `Service`
[INFO] [stdout] 29 | |             Ok::<_, Infallible>(service_fn(echo_response))
[INFO] [stdout] 30 | |         }
[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 std::future::Future<Output = Result<Response<Body>, Infallible>> {echo_response}, Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |             Ok::<_, Infallible>(service_fn(echo_response))
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `distant-echo` (bin "distant-echo" test) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "8f7ae2374b6a71f4e8fb245132d3b1c328d51ef83278f9009dc0126754a66ef5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f7ae2374b6a71f4e8fb245132d3b1c328d51ef83278f9009dc0126754a66ef5", kill_on_drop: false }`
[INFO] [stdout] 8f7ae2374b6a71f4e8fb245132d3b1c328d51ef83278f9009dc0126754a66ef5
