[INFO] fetching crate hyperecho 0.2.1...
[INFO] checking hyperecho-0.2.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate hyperecho 0.2.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate hyperecho 0.2.1
[INFO] finished tweaking crates.io crate hyperecho 0.2.1
[INFO] tweaked toml for crates.io crate hyperecho 0.2.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate hyperecho 0.2.1 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 hyperecho 0.2.1 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 646417ecb675f63de7c52dc2ae43b509c2c3220be580fef35c5b769881ccc9a2
[INFO] running `Command { std: "docker" "start" "-a" "646417ecb675f63de7c52dc2ae43b509c2c3220be580fef35c5b769881ccc9a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "646417ecb675f63de7c52dc2ae43b509c2c3220be580fef35c5b769881ccc9a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "646417ecb675f63de7c52dc2ae43b509c2c3220be580fef35c5b769881ccc9a2", kill_on_drop: false }`
[INFO] [stdout] 646417ecb675f63de7c52dc2ae43b509c2c3220be580fef35c5b769881ccc9a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 4a805f74ee1d6c8b4bb818e64b5014b4d545a1b31f2b35c5051bb96c32165ae2
[INFO] running `Command { std: "docker" "start" "-a" "4a805f74ee1d6c8b4bb818e64b5014b4d545a1b31f2b35c5051bb96c32165ae2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking http v1.1.0
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]     Checking indexmap v2.2.5
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]     Checking http-body v1.0.0
[INFO] [stderr]    Compiling syn v2.0.15
[INFO] [stderr]     Checking http-body-util v0.1.0
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking tokio-util v0.7.7
[INFO] [stderr]     Checking h2 v0.4.2
[INFO] [stderr]     Checking hyper v1.2.0
[INFO] [stderr]     Checking hyper-util v0.1.3
[INFO] [stderr]     Checking hyperecho v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Response<MapFrame<hyper::body::Incoming, {closure@src/main.rs:48:42: 48:49}>>, Infallible>
[INFO] [stdout]   --> src/main.rs:42:82
[INFO] [stdout]    |
[INFO] [stdout] 42 |   ) -> Result<Response<impl Body<Data = Bytes, Error = hyper::Error>>, Infallible> {
[INFO] [stdout]    |  __________________________________________________________________________________^
[INFO] [stdout] 43 | |     // print the request line
[INFO] [stdout] 44 | |     println!("\n{} {} {:?}\n", req.method(), req.uri(), req.version());
[INFO] [stdout] 45 | |     print_headers(req.headers());
[INFO] [stdout] ...  |
[INFO] [stdout] 60 | |     Ok(Response::new(body))
[INFO] [stdout] 61 | | }
[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<MapFrame<hyper::body::Incoming, {closure@src/main.rs:48:42: 48:49}>>, Infallible>
[INFO] [stdout]   --> src/main.rs:42:82
[INFO] [stdout]    |
[INFO] [stdout] 42 |   ) -> Result<Response<impl Body<Data = Bytes, Error = hyper::Error>>, Infallible> {
[INFO] [stdout]    |  __________________________________________________________________________________^
[INFO] [stdout] 43 | |     // print the request line
[INFO] [stdout] 44 | |     println!("\n{} {} {:?}\n", req.method(), req.uri(), req.version());
[INFO] [stdout] 45 | |     print_headers(req.headers());
[INFO] [stdout] ...  |
[INFO] [stdout] 60 | |     Ok(Response::new(body))
[INFO] [stdout] 61 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<MapFrame<hyper::body::Incoming, {closure@src/main.rs:48:42: 48:49}>>, Infallible>
[INFO] [stdout]   --> src/main.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     Ok(Response::new(body))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<MapFrame<hyper::body::Incoming, {closure@src/main.rs:48:42: 48:49}>>, Infallible>
[INFO] [stdout]   --> src/main.rs:42:82
[INFO] [stdout]    |
[INFO] [stdout] 42 |   ) -> Result<Response<impl Body<Data = Bytes, Error = hyper::Error>>, Infallible> {
[INFO] [stdout]    |  __________________________________________________________________________________^
[INFO] [stdout] 43 | |     // print the request line
[INFO] [stdout] 44 | |     println!("\n{} {} {:?}\n", req.method(), req.uri(), req.version());
[INFO] [stdout] 45 | |     print_headers(req.headers());
[INFO] [stdout] ...  |
[INFO] [stdout] 60 | |     Ok(Response::new(body))
[INFO] [stdout] 61 | | }
[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<MapFrame<hyper::body::Incoming, {closure@src/main.rs:48:42: 48:49}>>, Infallible>
[INFO] [stdout]   --> src/main.rs:42:82
[INFO] [stdout]    |
[INFO] [stdout] 42 |   ) -> Result<Response<impl Body<Data = Bytes, Error = hyper::Error>>, Infallible> {
[INFO] [stdout]    |  __________________________________________________________________________________^
[INFO] [stdout] 43 | |     // print the request line
[INFO] [stdout] 44 | |     println!("\n{} {} {:?}\n", req.method(), req.uri(), req.version());
[INFO] [stdout] 45 | |     print_headers(req.headers());
[INFO] [stdout] ...  |
[INFO] [stdout] 60 | |     Ok(Response::new(body))
[INFO] [stdout] 61 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hyperecho` (bin "hyperecho") due to 3 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<Response<MapFrame<hyper::body::Incoming, {closure@src/main.rs:48:42: 48:49}>>, Infallible>
[INFO] [stdout]   --> src/main.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     Ok(Response::new(body))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `hyperecho` (bin "hyperecho" test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "4a805f74ee1d6c8b4bb818e64b5014b4d545a1b31f2b35c5051bb96c32165ae2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a805f74ee1d6c8b4bb818e64b5014b4d545a1b31f2b35c5051bb96c32165ae2", kill_on_drop: false }`
[INFO] [stdout] 4a805f74ee1d6c8b4bb818e64b5014b4d545a1b31f2b35c5051bb96c32165ae2