[INFO] fetching crate xenon-webdriver 0.4.2...
[INFO] checking xenon-webdriver-0.4.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate xenon-webdriver 0.4.2 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate xenon-webdriver 0.4.2
[INFO] finished tweaking crates.io crate xenon-webdriver 0.4.2
[INFO] tweaked toml for crates.io crate xenon-webdriver 0.4.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate xenon-webdriver 0.4.2 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 xenon-webdriver 0.4.2 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-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] 8d3d1eaf0b3b8466edda28459fb7005f1f2e18ed3c8fc565c367fc2383e53477
[INFO] running `Command { std: "docker" "start" "-a" "8d3d1eaf0b3b8466edda28459fb7005f1f2e18ed3c8fc565c367fc2383e53477", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d3d1eaf0b3b8466edda28459fb7005f1f2e18ed3c8fc565c367fc2383e53477", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d3d1eaf0b3b8466edda28459fb7005f1f2e18ed3c8fc565c367fc2383e53477", kill_on_drop: false }`
[INFO] [stdout] 8d3d1eaf0b3b8466edda28459fb7005f1f2e18ed3c8fc565c367fc2383e53477
[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] d699ff7a0c9954afc691dcf69a5ddcbf532fe038d96eb0f7993ddb86800d6baa
[INFO] running `Command { std: "docker" "start" "-a" "d699ff7a0c9954afc691dcf69a5ddcbf532fe038d96eb0f7993ddb86800d6baa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking hashbrown v0.12.1
[INFO] [stderr]     Checking tracing-core v0.1.28
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling httparse v1.7.1
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking tracing v0.1.35
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking tower-service v0.3.2
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking pin-project v1.0.10
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking serde_yaml v0.8.24
[INFO] [stderr]     Checking hyper v0.13.10
[INFO] [stderr]     Checking xenon-webdriver v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<hyper::service::util::ServiceFn<{closure@src/server.rs:81:44: 81:54}, Body>, Infallible>
[INFO] [stdout]   --> src/server.rs:78:20
[INFO] [stdout]    |
[INFO] [stdout] 78 |           async move {
[INFO] [stdout]    |  ____________________^
[INFO] [stdout] 79 | |             let state = state.clone();
[INFO] [stdout] 80 | |             let remote_addr = remote_addr;
[INFO] [stdout] 81 | |             Ok::<_, Infallible>(service_fn(move |req| {
[INFO] [stdout] ...  |
[INFO] [stdout] 84 | |             }))
[INFO] [stdout] 85 | |         }
[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/server.rs:81:44: 81:54}, Body>, Infallible>
[INFO] [stdout]   --> src/server.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 | /             Ok::<_, Infallible>(service_fn(move |req| {
[INFO] [stdout] 82 | |                 let state = state.clone();
[INFO] [stdout] 83 | |                 handle(req, remote_addr, state)
[INFO] [stdout] 84 | |             }))
[INFO] [stdout]    | |_______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/server.rs:108:41
[INFO] [stdout]     |
[INFO] [stdout] 108 |   ) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]     |  _________________________________________^
[INFO] [stdout] 109 | |     let top_level_path: &str = req
[INFO] [stdout] 110 | |         .uri()
[INFO] [stdout] 111 | |         .path()
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/server.rs:108:41
[INFO] [stdout]     |
[INFO] [stdout] 108 |   ) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]     |  _________________________________________^
[INFO] [stdout] 109 | |     let top_level_path: &str = req
[INFO] [stdout] 110 | |         .uri()
[INFO] [stdout] 111 | |         .path()
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/server.rs:131:5
[INFO] [stdout]     |
[INFO] [stdout] 131 | /     match result {
[INFO] [stdout] 132 | |         Ok(x) => Ok(x),
[INFO] [stdout] 133 | |         Err(XenonError::RespondWith(r)) => {
[INFO] [stdout] 134 | |             debug!("Xenon replied with error: {:#?}", r);
[INFO] [stdout] ...   |
[INFO] [stdout] 143 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/server.rs:132:18
[INFO] [stdout]     |
[INFO] [stdout] 132 |         Ok(x) => Ok(x),
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/server.rs:133:44
[INFO] [stdout]     |
[INFO] [stdout] 133 |           Err(XenonError::RespondWith(r)) => {
[INFO] [stdout]     |  ____________________________________________^
[INFO] [stdout] 134 | |             debug!("Xenon replied with error: {:#?}", r);
[INFO] [stdout] 135 | |             Ok(r.into_response())
[INFO] [stdout] 136 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/server.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |             Ok(r.into_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/server.rs:137:19
[INFO] [stdout]     |
[INFO] [stdout] 137 |           Err(e) => {
[INFO] [stdout]     |  ___________________^
[INFO] [stdout] 138 | |             // Coerce all errors into WebDriver-compatible response.
[INFO] [stdout] 139 | |             error!("Internal Error: {:#?}", e);
[INFO] [stdout] 140 | |             let r = XenonResponse::InternalServerError(e.to_string());
[INFO] [stdout] 141 | |             Ok(r.into_response())
[INFO] [stdout] 142 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/server.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |             Ok(r.into_response())
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `xenon-webdriver` (bin "xenon-webdriver") due to 10 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/server.rs:81:44: 81:54}, Body>, Infallible>
[INFO] [stdout]   --> src/server.rs:78:20
[INFO] [stdout]    |
[INFO] [stdout] 78 |           async move {
[INFO] [stdout]    |  ____________________^
[INFO] [stdout] 79 | |             let state = state.clone();
[INFO] [stdout] 80 | |             let remote_addr = remote_addr;
[INFO] [stdout] 81 | |             Ok::<_, Infallible>(service_fn(move |req| {
[INFO] [stdout] ...  |
[INFO] [stdout] 84 | |             }))
[INFO] [stdout] 85 | |         }
[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/server.rs:81:44: 81:54}, Body>, Infallible>
[INFO] [stdout]   --> src/server.rs:81:13
[INFO] [stdout]    |
[INFO] [stdout] 81 | /             Ok::<_, Infallible>(service_fn(move |req| {
[INFO] [stdout] 82 | |                 let state = state.clone();
[INFO] [stdout] 83 | |                 handle(req, remote_addr, state)
[INFO] [stdout] 84 | |             }))
[INFO] [stdout]    | |_______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/server.rs:108:41
[INFO] [stdout]     |
[INFO] [stdout] 108 |   ) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]     |  _________________________________________^
[INFO] [stdout] 109 | |     let top_level_path: &str = req
[INFO] [stdout] 110 | |         .uri()
[INFO] [stdout] 111 | |         .path()
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/server.rs:108:41
[INFO] [stdout]     |
[INFO] [stdout] 108 |   ) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]     |  _________________________________________^
[INFO] [stdout] 109 | |     let top_level_path: &str = req
[INFO] [stdout] 110 | |         .uri()
[INFO] [stdout] 111 | |         .path()
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/server.rs:131:5
[INFO] [stdout]     |
[INFO] [stdout] 131 | /     match result {
[INFO] [stdout] 132 | |         Ok(x) => Ok(x),
[INFO] [stdout] 133 | |         Err(XenonError::RespondWith(r)) => {
[INFO] [stdout] 134 | |             debug!("Xenon replied with error: {:#?}", r);
[INFO] [stdout] ...   |
[INFO] [stdout] 143 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/server.rs:132:18
[INFO] [stdout]     |
[INFO] [stdout] 132 |         Ok(x) => Ok(x),
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/server.rs:133:44
[INFO] [stdout]     |
[INFO] [stdout] 133 |           Err(XenonError::RespondWith(r)) => {
[INFO] [stdout]     |  ____________________________________________^
[INFO] [stdout] 134 | |             debug!("Xenon replied with error: {:#?}", r);
[INFO] [stdout] 135 | |             Ok(r.into_response())
[INFO] [stdout] 136 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/server.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |             Ok(r.into_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/server.rs:137:19
[INFO] [stdout]     |
[INFO] [stdout] 137 |           Err(e) => {
[INFO] [stdout]     |  ___________________^
[INFO] [stdout] 138 | |             // Coerce all errors into WebDriver-compatible response.
[INFO] [stdout] 139 | |             error!("Internal Error: {:#?}", e);
[INFO] [stdout] 140 | |             let r = XenonResponse::InternalServerError(e.to_string());
[INFO] [stdout] 141 | |             Ok(r.into_response())
[INFO] [stdout] 142 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]    --> src/server.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |             Ok(r.into_response())
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `xenon-webdriver` (bin "xenon-webdriver" test) due to 10 previous errors
[INFO] running `Command { std: "docker" "inspect" "d699ff7a0c9954afc691dcf69a5ddcbf532fe038d96eb0f7993ddb86800d6baa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d699ff7a0c9954afc691dcf69a5ddcbf532fe038d96eb0f7993ddb86800d6baa", kill_on_drop: false }`
[INFO] [stdout] d699ff7a0c9954afc691dcf69a5ddcbf532fe038d96eb0f7993ddb86800d6baa
