[INFO] fetching crate tokio-graceful 0.2.2...
[INFO] checking tokio-graceful-0.2.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate tokio-graceful 0.2.2 into /workspace/builds/worker-4-tc2/source
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate tokio-graceful 0.2.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate tokio-graceful 0.2.2
[INFO] tweaked toml for crates.io crate tokio-graceful 0.2.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tokio-graceful 0.2.2 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 tokio-graceful 0.2.2 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] cc53815a740abacb80b56046789b28cc5f776c5c202cf31da362178fb1c9b701
[INFO] running `Command { std: "docker" "start" "-a" "cc53815a740abacb80b56046789b28cc5f776c5c202cf31da362178fb1c9b701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc53815a740abacb80b56046789b28cc5f776c5c202cf31da362178fb1c9b701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc53815a740abacb80b56046789b28cc5f776c5c202cf31da362178fb1c9b701", kill_on_drop: false }`
[INFO] [stdout] cc53815a740abacb80b56046789b28cc5f776c5c202cf31da362178fb1c9b701
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 75e0e0fa6fb2fbd61f8a1a06dcedfc75bb56457bf81141fa5b670beec0511dbe
[INFO] running `Command { std: "docker" "start" "-a" "75e0e0fa6fb2fbd61f8a1a06dcedfc75bb56457bf81141fa5b670beec0511dbe", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]     Checking pin-project-lite v0.2.14
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling httparse v1.9.4
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking http v1.1.0
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking indexmap v2.5.0
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking mio v1.0.2
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking http-body v1.0.1
[INFO] [stderr]     Checking http-body-util v0.1.2
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking tokio v1.40.0
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tokio-util v0.7.12
[INFO] [stderr]     Checking tokio-graceful v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking h2 v0.4.6
[INFO] [stderr]     Checking hyper v1.4.1
[INFO] [stderr]     Checking hyper-util v0.1.9
[INFO] [stdout] error: this type will no longer be must used: Result<Response<http_body_util::Full<bytes::Bytes>>, Infallible>
[INFO] [stdout]    --> examples/hyper_with_overwrite_fn.rs:111:83
[INFO] [stdout]     |
[INFO] [stdout] 111 |   async fn hello(_: Request<Incoming>) -> Result<Response<Full<Bytes>>, Infallible> {
[INFO] [stdout]     |  ___________________________________________________________________________________^
[INFO] [stdout] 112 | |     tokio::time::sleep(std::time::Duration::from_secs(5)).await;
[INFO] [stdout] 113 | |     Ok(Response::new(Full::from("Hello World!")))
[INFO] [stdout] 114 | | }
[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<http_body_util::Full<bytes::Bytes>>, Infallible>
[INFO] [stdout]    --> examples/hyper_with_overwrite_fn.rs:111:83
[INFO] [stdout]     |
[INFO] [stdout] 111 |   async fn hello(_: Request<Incoming>) -> Result<Response<Full<Bytes>>, Infallible> {
[INFO] [stdout]     |  ___________________________________________________________________________________^
[INFO] [stdout] 112 | |     tokio::time::sleep(std::time::Duration::from_secs(5)).await;
[INFO] [stdout] 113 | |     Ok(Response::new(Full::from("Hello World!")))
[INFO] [stdout] 114 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<http_body_util::Full<bytes::Bytes>>, Infallible>
[INFO] [stdout]    --> examples/hyper_with_overwrite_fn.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 113 |     Ok(Response::new(Full::from("Hello World!")))
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tokio-graceful` (example "hyper_with_overwrite_fn") due to 3 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<http_body_util::Full<bytes::Bytes>>, Infallible>
[INFO] [stdout]    --> examples/hyper.rs:107:83
[INFO] [stdout]     |
[INFO] [stdout] 107 |   async fn hello(_: Request<Incoming>) -> Result<Response<Full<Bytes>>, Infallible> {
[INFO] [stdout]     |  ___________________________________________________________________________________^
[INFO] [stdout] 108 | |     tokio::time::sleep(std::time::Duration::from_secs(5)).await;
[INFO] [stdout] 109 | |     Ok(Response::new(Full::from("Hello World!")))
[INFO] [stdout] 110 | | }
[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<http_body_util::Full<bytes::Bytes>>, Infallible>
[INFO] [stdout]    --> examples/hyper.rs:107:83
[INFO] [stdout]     |
[INFO] [stdout] 107 |   async fn hello(_: Request<Incoming>) -> Result<Response<Full<Bytes>>, Infallible> {
[INFO] [stdout]     |  ___________________________________________________________________________________^
[INFO] [stdout] 108 | |     tokio::time::sleep(std::time::Duration::from_secs(5)).await;
[INFO] [stdout] 109 | |     Ok(Response::new(Full::from("Hello World!")))
[INFO] [stdout] 110 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<http_body_util::Full<bytes::Bytes>>, Infallible>
[INFO] [stdout]    --> examples/hyper.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     Ok(Response::new(Full::from("Hello World!")))
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tokio-graceful` (example "hyper") due to 3 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<Response<http_body_util::Full<bytes::Bytes>>, Infallible>
[INFO] [stdout]    --> examples/hyper_panic.rs:147:83
[INFO] [stdout]     |
[INFO] [stdout] 147 |   async fn hello(_: Request<Incoming>) -> Result<Response<Full<Bytes>>, Infallible> {
[INFO] [stdout]     |  ___________________________________________________________________________________^
[INFO] [stdout] 148 | |     tokio::time::sleep(std::time::Duration::from_secs(5)).await;
[INFO] [stdout] 149 | |     Ok(Response::new(Full::from("Hello World!")))
[INFO] [stdout] 150 | | }
[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<http_body_util::Full<bytes::Bytes>>, Infallible>
[INFO] [stdout]    --> examples/hyper_panic.rs:147:83
[INFO] [stdout]     |
[INFO] [stdout] 147 |   async fn hello(_: Request<Incoming>) -> Result<Response<Full<Bytes>>, Infallible> {
[INFO] [stdout]     |  ___________________________________________________________________________________^
[INFO] [stdout] 148 | |     tokio::time::sleep(std::time::Duration::from_secs(5)).await;
[INFO] [stdout] 149 | |     Ok(Response::new(Full::from("Hello World!")))
[INFO] [stdout] 150 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<http_body_util::Full<bytes::Bytes>>, Infallible>
[INFO] [stdout]    --> examples/hyper_panic.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 |     Ok(Response::new(Full::from("Hello World!")))
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tokio-graceful` (example "hyper_panic") due to 3 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<Response<http_body_util::Full<bytes::Bytes>>, Infallible>
[INFO] [stdout]    --> examples/hyper_with_shutdown_delay.rs:109:83
[INFO] [stdout]     |
[INFO] [stdout] 109 |   async fn hello(_: Request<Incoming>) -> Result<Response<Full<Bytes>>, Infallible> {
[INFO] [stdout]     |  ___________________________________________________________________________________^
[INFO] [stdout] 110 | |     tokio::time::sleep(std::time::Duration::from_secs(5)).await;
[INFO] [stdout] 111 | |     Ok(Response::new(Full::from("Hello World!")))
[INFO] [stdout] 112 | | }
[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<http_body_util::Full<bytes::Bytes>>, Infallible>
[INFO] [stdout]    --> examples/hyper_with_shutdown_delay.rs:109:83
[INFO] [stdout]     |
[INFO] [stdout] 109 |   async fn hello(_: Request<Incoming>) -> Result<Response<Full<Bytes>>, Infallible> {
[INFO] [stdout]     |  ___________________________________________________________________________________^
[INFO] [stdout] 110 | |     tokio::time::sleep(std::time::Duration::from_secs(5)).await;
[INFO] [stdout] 111 | |     Ok(Response::new(Full::from("Hello World!")))
[INFO] [stdout] 112 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<http_body_util::Full<bytes::Bytes>>, Infallible>
[INFO] [stdout]    --> examples/hyper_with_shutdown_delay.rs:111:5
[INFO] [stdout]     |
[INFO] [stdout] 111 |     Ok(Response::new(Full::from("Hello World!")))
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tokio-graceful` (example "hyper_with_shutdown_delay") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "75e0e0fa6fb2fbd61f8a1a06dcedfc75bb56457bf81141fa5b670beec0511dbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75e0e0fa6fb2fbd61f8a1a06dcedfc75bb56457bf81141fa5b670beec0511dbe", kill_on_drop: false }`
[INFO] [stdout] 75e0e0fa6fb2fbd61f8a1a06dcedfc75bb56457bf81141fa5b670beec0511dbe
