[INFO] fetching crate ncomm-update-clients-and-servers 1.1.4... [INFO] checking ncomm-update-clients-and-servers-1.1.4 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate ncomm-update-clients-and-servers 1.1.4 into /workspace/builds/worker-5-tc2/source [INFO] started tweaking crates.io crate ncomm-update-clients-and-servers 1.1.4 [INFO] finished tweaking crates.io crate ncomm-update-clients-and-servers 1.1.4 [INFO] tweaked toml for crates.io crate ncomm-update-clients-and-servers 1.1.4 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate ncomm-update-clients-and-servers 1.1.4 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 23 packages to latest compatible versions [INFO] [stderr] Adding embedded-io v0.6.1 (available: v0.7.1) [INFO] [stderr] Adding rand v0.8.5 (available: v0.9.2) [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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 6ffd8d89e60f7fbc12673a742b0647263b2c5d01d97c79589908587dcc9d3016 [INFO] running `Command { std: "docker" "start" "-a" "6ffd8d89e60f7fbc12673a742b0647263b2c5d01d97c79589908587dcc9d3016", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6ffd8d89e60f7fbc12673a742b0647263b2c5d01d97c79589908587dcc9d3016", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6ffd8d89e60f7fbc12673a742b0647263b2c5d01d97c79589908587dcc9d3016", kill_on_drop: false }` [INFO] [stdout] 6ffd8d89e60f7fbc12673a742b0647263b2c5d01d97c79589908587dcc9d3016 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 03d0d781cf66f5f0df21b44fd1ae4bbb8f24b226a747df9634260f5c6ecf822e [INFO] running `Command { std: "docker" "start" "-a" "03d0d781cf66f5f0df21b44fd1ae4bbb8f24b226a747df9634260f5c6ecf822e", kill_on_drop: false }` [INFO] [stderr] Checking getrandom v0.2.16 [INFO] [stderr] Checking crossbeam-queue v0.3.12 [INFO] [stderr] Checking crossbeam-channel v0.5.15 [INFO] [stderr] Checking ncomm-utils v1.1.4 [INFO] [stderr] Checking ncomm-core v1.1.4 [INFO] [stderr] Checking crossbeam-deque v0.8.6 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking crossbeam v0.8.4 [INFO] [stderr] Checking ncomm-update-clients-and-servers v1.1.4 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/local.rs:37:97 [INFO] [stdout] | [INFO] [stdout] 37 | fn poll_for_update(&mut self) -> Result, Self::Error> { [INFO] [stdout] | _________________________________________________________________________________________________^ [INFO] [stdout] 38 | | match self.update_rx.try_recv() { [INFO] [stdout] 39 | | Ok(update) => Ok(Some(update)), [INFO] [stdout] 40 | | Err(_) => Ok(None), [INFO] [stdout] 41 | | } [INFO] [stdout] 42 | | } [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, Infallible> [INFO] [stdout] --> src/local.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | / match self.update_rx.try_recv() { [INFO] [stdout] 39 | | Ok(update) => Ok(Some(update)), [INFO] [stdout] 40 | | Err(_) => Ok(None), [INFO] [stdout] 41 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/local.rs:39:27 [INFO] [stdout] | [INFO] [stdout] 39 | Ok(update) => Ok(Some(update)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/local.rs:40:23 [INFO] [stdout] | [INFO] [stdout] 40 | Err(_) => Ok(None), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result<(Req, Updt), Infallible> [INFO] [stdout] --> src/local.rs:47:26 [INFO] [stdout] | [INFO] [stdout] 47 | updates.push(Ok(update)); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/local.rs:54:71 [INFO] [stdout] | [INFO] [stdout] 54 | ) -> Result, Self::Error> { [INFO] [stdout] | _______________________________________________________________________^ [INFO] [stdout] 55 | | match self.response_rx.try_recv() { [INFO] [stdout] 56 | | Ok(response) => Ok(Some(response)), [INFO] [stdout] 57 | | Err(_) => Ok(None), [INFO] [stdout] 58 | | } [INFO] [stdout] 59 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/local.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | / match self.response_rx.try_recv() { [INFO] [stdout] 56 | | Ok(response) => Ok(Some(response)), [INFO] [stdout] 57 | | Err(_) => Ok(None), [INFO] [stdout] 58 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/local.rs:56:29 [INFO] [stdout] | [INFO] [stdout] 56 | Ok(response) => Ok(Some(response)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/local.rs:57:23 [INFO] [stdout] | [INFO] [stdout] 57 | Err(_) => Ok(None), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result<(Req, Res), Infallible> [INFO] [stdout] --> src/local.rs:64:28 [INFO] [stdout] | [INFO] [stdout] 64 | responses.push(Ok(response)); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/local.rs:116:95 [INFO] [stdout] | [INFO] [stdout] 116 | fn poll_for_request(&mut self) -> Result, Self::Error> { [INFO] [stdout] | _______________________________________________________________________________________________^ [INFO] [stdout] 117 | | for (k, (rx, _, _)) in self.client_map.iter() { [INFO] [stdout] 118 | | if let Ok(request) = rx.try_recv() { [INFO] [stdout] 119 | | return Ok(Some((k.clone(), request))); [INFO] [stdout] ... | [INFO] [stdout] 122 | | Ok(None) [INFO] [stdout] 123 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/local.rs:119:24 [INFO] [stdout] | [INFO] [stdout] 119 | return Ok(Some((k.clone(), request))); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/local.rs:122:9 [INFO] [stdout] | [INFO] [stdout] 122 | Ok(None) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result<(K, Req), Infallible> [INFO] [stdout] --> src/local.rs:129:31 [INFO] [stdout] | [INFO] [stdout] 129 | requests.push(Ok((k.clone(), request))); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `ncomm-update-clients-and-servers` (lib) due to 14 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "03d0d781cf66f5f0df21b44fd1ae4bbb8f24b226a747df9634260f5c6ecf822e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "03d0d781cf66f5f0df21b44fd1ae4bbb8f24b226a747df9634260f5c6ecf822e", kill_on_drop: false }` [INFO] [stdout] 03d0d781cf66f5f0df21b44fd1ae4bbb8f24b226a747df9634260f5c6ecf822e