[INFO] fetching crate penguin 0.1.9...
[INFO] checking penguin-0.1.9 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate penguin 0.1.9 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate penguin 0.1.9
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate penguin 0.1.9
[INFO] tweaked toml for crates.io crate penguin 0.1.9 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate penguin 0.1.9 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 penguin 0.1.9 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 5791f2a04fefac5512fd5e1a0a8ee6e075d9d43adac1689c632cb9b7914439b9
[INFO] running `Command { std: "docker" "start" "-a" "5791f2a04fefac5512fd5e1a0a8ee6e075d9d43adac1689c632cb9b7914439b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5791f2a04fefac5512fd5e1a0a8ee6e075d9d43adac1689c632cb9b7914439b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5791f2a04fefac5512fd5e1a0a8ee6e075d9d43adac1689c632cb9b7914439b9", kill_on_drop: false }`
[INFO] [stdout] 5791f2a04fefac5512fd5e1a0a8ee6e075d9d43adac1689c632cb9b7914439b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] f527b04c8a9d97ea2b23e0af2ec48b721de0cd81d67bf5322b8190521dd8b285
[INFO] running `Command { std: "docker" "start" "-a" "f527b04c8a9d97ea2b23e0af2ec48b721de0cd81d67bf5322b8190521dd8b285", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking mio v0.8.3
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]    Compiling httparse v1.7.1
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking tracing-core v0.1.27
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]    Compiling openssl v0.10.40
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking tracing v0.1.34
[INFO] [stderr]    Compiling openssl-sys v0.9.74
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking digest v0.10.3
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking sha-1 v0.10.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.3
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]     Checking alloc-stdlib v0.2.1
[INFO] [stderr]     Checking uuid v1.6.1
[INFO] [stderr]     Checking brotli-decompressor v2.3.2
[INFO] [stderr]     Checking miniz_oxide v0.5.3
[INFO] [stderr]     Checking cfb v0.7.3
[INFO] [stderr]    Compiling penguin v0.1.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking http-range v0.1.5
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking infer v0.15.0
[INFO] [stderr]     Checking brotli v3.3.4
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling openssl-macros v0.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]     Checking tokio v1.19.2
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking tungstenite v0.17.2
[INFO] [stderr]     Checking pin-project v1.0.10
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking tokio-util v0.7.3
[INFO] [stderr]     Checking tokio-tungstenite v0.17.1
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.3.13
[INFO] [stderr]     Checking hyper v0.14.19
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking hyper-tungstenite v0.8.0
[INFO] [stdout] error: this type will no longer be must used: Result<hyper::service::util::ServiceFn<{closure@src/serve/mod.rs:30:44: 30:54}, Body>, Infallible>
[INFO] [stdout]   --> src/serve/mod.rs:29:15
[INFO] [stdout]    |
[INFO] [stdout] 29 |           async {
[INFO] [stdout]    |  _______________^
[INFO] [stdout] 30 | |             Ok::<_, Infallible>(service_fn(move |req| {
[INFO] [stdout] 31 | |                 handle_internal_errors(
[INFO] [stdout] 32 | |                     handle(req, Arc::clone(&ctx), actions.clone())
[INFO] [stdout] 33 | |                 )
[INFO] [stdout] 34 | |             }))
[INFO] [stdout] 35 | |         }
[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<hyper::service::util::ServiceFn<{closure@src/serve/mod.rs:30:44: 30:54}, Body>, Infallible>
[INFO] [stdout]   --> src/serve/mod.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | /             Ok::<_, Infallible>(service_fn(move |req| {
[INFO] [stdout] 31 | |                 handle_internal_errors(
[INFO] [stdout] 32 | |                     handle(req, Arc::clone(&ctx), actions.clone())
[INFO] [stdout] 33 | |                 )
[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]   --> src/serve/mod.rs:49:41
[INFO] [stdout]    |
[INFO] [stdout] 49 |   ) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]    |  _________________________________________^
[INFO] [stdout] 50 | |     fn internal_server_error(msg: &str) -> Response<Body> {
[INFO] [stdout] 51 | |         let body = format!("Internal server error: this is a bug in Penguin!\n\n{}\n", msg);
[INFO] [stdout] 52 | |         Response::builder()
[INFO] [stdout] ...  |
[INFO] [stdout] 78 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> src/serve/mod.rs:49:41
[INFO] [stdout]    |
[INFO] [stdout] 49 |   ) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]    |  _________________________________________^
[INFO] [stdout] 50 | |     fn internal_server_error(msg: &str) -> Response<Body> {
[INFO] [stdout] 51 | |         let body = format!("Internal server error: this is a bug in Penguin!\n\n{}\n", msg);
[INFO] [stdout] 52 | |         Response::builder()
[INFO] [stdout] ...  |
[INFO] [stdout] 78 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> src/serve/mod.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 | /     match AssertUnwindSafe(future).catch_unwind().await {
[INFO] [stdout] 64 | |         Ok(response) => Ok(response),
[INFO] [stdout] 65 | |         Err(panic) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 77 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> src/serve/mod.rs:64:25
[INFO] [stdout]    |
[INFO] [stdout] 64 |         Ok(response) => Ok(response),
[INFO] [stdout]    |                         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> src/serve/mod.rs:65:23
[INFO] [stdout]    |
[INFO] [stdout] 65 |           Err(panic) => {
[INFO] [stdout]    |  _______________________^
[INFO] [stdout] ...  |
[INFO] [stdout] 75 | |             Ok(internal_server_error(msg.unwrap_or("panic")))
[INFO] [stdout] 76 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> src/serve/mod.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |             Ok(internal_server_error(msg.unwrap_or("panic")))
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `penguin` (lib test) due to 8 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<hyper::service::util::ServiceFn<{closure@src/serve/mod.rs:30:44: 30:54}, Body>, Infallible>
[INFO] [stdout]   --> src/serve/mod.rs:29:15
[INFO] [stdout]    |
[INFO] [stdout] 29 |           async {
[INFO] [stdout]    |  _______________^
[INFO] [stdout] 30 | |             Ok::<_, Infallible>(service_fn(move |req| {
[INFO] [stdout] 31 | |                 handle_internal_errors(
[INFO] [stdout] 32 | |                     handle(req, Arc::clone(&ctx), actions.clone())
[INFO] [stdout] 33 | |                 )
[INFO] [stdout] 34 | |             }))
[INFO] [stdout] 35 | |         }
[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<hyper::service::util::ServiceFn<{closure@src/serve/mod.rs:30:44: 30:54}, Body>, Infallible>
[INFO] [stdout]   --> src/serve/mod.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | /             Ok::<_, Infallible>(service_fn(move |req| {
[INFO] [stdout] 31 | |                 handle_internal_errors(
[INFO] [stdout] 32 | |                     handle(req, Arc::clone(&ctx), actions.clone())
[INFO] [stdout] 33 | |                 )
[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]   --> src/serve/mod.rs:49:41
[INFO] [stdout]    |
[INFO] [stdout] 49 |   ) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]    |  _________________________________________^
[INFO] [stdout] 50 | |     fn internal_server_error(msg: &str) -> Response<Body> {
[INFO] [stdout] 51 | |         let body = format!("Internal server error: this is a bug in Penguin!\n\n{}\n", msg);
[INFO] [stdout] 52 | |         Response::builder()
[INFO] [stdout] ...  |
[INFO] [stdout] 78 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> src/serve/mod.rs:49:41
[INFO] [stdout]    |
[INFO] [stdout] 49 |   ) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]    |  _________________________________________^
[INFO] [stdout] 50 | |     fn internal_server_error(msg: &str) -> Response<Body> {
[INFO] [stdout] 51 | |         let body = format!("Internal server error: this is a bug in Penguin!\n\n{}\n", msg);
[INFO] [stdout] 52 | |         Response::builder()
[INFO] [stdout] ...  |
[INFO] [stdout] 78 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> src/serve/mod.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 | /     match AssertUnwindSafe(future).catch_unwind().await {
[INFO] [stdout] 64 | |         Ok(response) => Ok(response),
[INFO] [stdout] 65 | |         Err(panic) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 77 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> src/serve/mod.rs:64:25
[INFO] [stdout]    |
[INFO] [stdout] 64 |         Ok(response) => Ok(response),
[INFO] [stdout]    |                         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> src/serve/mod.rs:65:23
[INFO] [stdout]    |
[INFO] [stdout] 65 |           Err(panic) => {
[INFO] [stdout]    |  _______________________^
[INFO] [stdout] ...  |
[INFO] [stdout] 75 | |             Ok(internal_server_error(msg.unwrap_or("panic")))
[INFO] [stdout] 76 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> src/serve/mod.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |             Ok(internal_server_error(msg.unwrap_or("panic")))
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `penguin` (lib) due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "f527b04c8a9d97ea2b23e0af2ec48b721de0cd81d67bf5322b8190521dd8b285", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f527b04c8a9d97ea2b23e0af2ec48b721de0cd81d67bf5322b8190521dd8b285", kill_on_drop: false }`
[INFO] [stdout] f527b04c8a9d97ea2b23e0af2ec48b721de0cd81d67bf5322b8190521dd8b285
