[INFO] fetching crate ncomm-clients-and-servers 1.1.4... [INFO] checking ncomm-clients-and-servers-1.1.4 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate ncomm-clients-and-servers 1.1.4 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate ncomm-clients-and-servers 1.1.4 [INFO] finished tweaking crates.io crate ncomm-clients-and-servers 1.1.4 [INFO] tweaked toml for crates.io crate ncomm-clients-and-servers 1.1.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate ncomm-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] 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] ac3a36ec7abb1ae02b72ad86c0245f1fde5aea7c1f3649342df799c30c9275d3 [INFO] running `Command { std: "docker" "start" "-a" "ac3a36ec7abb1ae02b72ad86c0245f1fde5aea7c1f3649342df799c30c9275d3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ac3a36ec7abb1ae02b72ad86c0245f1fde5aea7c1f3649342df799c30c9275d3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ac3a36ec7abb1ae02b72ad86c0245f1fde5aea7c1f3649342df799c30c9275d3", kill_on_drop: false }` [INFO] [stdout] ac3a36ec7abb1ae02b72ad86c0245f1fde5aea7c1f3649342df799c30c9275d3 [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] 4b719494d4722687d703fbc7d5c4ff2f245a103e1dcc111d0aee4b77c9640ba2 [INFO] running `Command { std: "docker" "start" "-a" "4b719494d4722687d703fbc7d5c4ff2f245a103e1dcc111d0aee4b77c9640ba2", kill_on_drop: false }` [INFO] [stderr] Checking embedded-io v0.6.1 [INFO] [stderr] Checking ncomm-utils v1.1.4 [INFO] [stderr] Checking ncomm-core v1.1.4 [INFO] [stderr] Checking ncomm-clients-and-servers v1.1.4 (/opt/rustwide/workdir) [INFO] [stderr] error: could not compile `ncomm-clients-and-servers` (lib) due to 9 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, Infallible> [INFO] [stdout] --> src/local.rs:36:71 [INFO] [stdout] | [INFO] [stdout] 36 | ) -> Result, Self::Error> { [INFO] [stdout] | _______________________________________________________________________^ [INFO] [stdout] 37 | | match self.rx.try_recv() { [INFO] [stdout] 38 | | Ok(response) => Ok(Some(response)), [INFO] [stdout] 39 | | Err(_) => Ok(None), [INFO] [stdout] 40 | | } [INFO] [stdout] 41 | | } [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:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | / match self.rx.try_recv() { [INFO] [stdout] 38 | | Ok(response) => Ok(Some(response)), [INFO] [stdout] 39 | | Err(_) => Ok(None), [INFO] [stdout] 40 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/local.rs:38:29 [INFO] [stdout] | [INFO] [stdout] 38 | 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:39:23 [INFO] [stdout] | [INFO] [stdout] 39 | 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:46:28 [INFO] [stdout] | [INFO] [stdout] 46 | responses.push(Ok(response)); [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:97:31 [INFO] [stdout] | [INFO] [stdout] 97 | requests.push(Ok((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:103:95 [INFO] [stdout] | [INFO] [stdout] 103 | fn poll_for_request(&mut self) -> Result, Self::Error> { [INFO] [stdout] | _______________________________________________________________________________________________^ [INFO] [stdout] 104 | | for (k, (rx, _)) in self.client_map.iter() { [INFO] [stdout] 105 | | if let Ok(request) = rx.try_recv() { [INFO] [stdout] 106 | | return Ok(Some((k.clone(), request))); [INFO] [stdout] ... | [INFO] [stdout] 109 | | Ok(None) [INFO] [stdout] 110 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/local.rs:106:24 [INFO] [stdout] | [INFO] [stdout] 106 | 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:109:9 [INFO] [stdout] | [INFO] [stdout] 109 | Ok(None) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/local.rs:36:71 [INFO] [stdout] | [INFO] [stdout] 36 | ) -> Result, Self::Error> { [INFO] [stdout] | _______________________________________________________________________^ [INFO] [stdout] 37 | | match self.rx.try_recv() { [INFO] [stdout] 38 | | Ok(response) => Ok(Some(response)), [INFO] [stdout] 39 | | Err(_) => Ok(None), [INFO] [stdout] 40 | | } [INFO] [stdout] 41 | | } [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:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | / match self.rx.try_recv() { [INFO] [stdout] 38 | | Ok(response) => Ok(Some(response)), [INFO] [stdout] 39 | | Err(_) => Ok(None), [INFO] [stdout] 40 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/local.rs:38:29 [INFO] [stdout] | [INFO] [stdout] 38 | 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:39:23 [INFO] [stdout] | [INFO] [stdout] 39 | 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:46:28 [INFO] [stdout] | [INFO] [stdout] 46 | responses.push(Ok(response)); [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:97:31 [INFO] [stdout] | [INFO] [stdout] 97 | requests.push(Ok((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:103:95 [INFO] [stdout] | [INFO] [stdout] 103 | fn poll_for_request(&mut self) -> Result, Self::Error> { [INFO] [stdout] | _______________________________________________________________________________________________^ [INFO] [stdout] 104 | | for (k, (rx, _)) in self.client_map.iter() { [INFO] [stdout] 105 | | if let Ok(request) = rx.try_recv() { [INFO] [stdout] 106 | | return Ok(Some((k.clone(), request))); [INFO] [stdout] ... | [INFO] [stdout] 109 | | Ok(None) [INFO] [stdout] 110 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/local.rs:106:24 [INFO] [stdout] | [INFO] [stdout] 106 | 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:109:9 [INFO] [stdout] | [INFO] [stdout] 109 | Ok(None) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result<(u8, local::tests::Request), Infallible> [INFO] [stdout] --> src/local.rs:164:41 [INFO] [stdout] | [INFO] [stdout] 164 | let Ok((client, request)) = request; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result<(local::tests::Request, local::tests::Response), Infallible> [INFO] [stdout] --> src/local.rs:171:43 [INFO] [stdout] | [INFO] [stdout] 171 | let Ok((request, response)) = 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:185:46 [INFO] [stdout] | [INFO] [stdout] 185 | if let Ok(Some((client, request))) = server.poll_for_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:193:48 [INFO] [stdout] | [INFO] [stdout] 193 | if let Ok(Some((request, response))) = client.poll_for_response() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `ncomm-clients-and-servers` (lib test) due to 13 previous errors [INFO] running `Command { std: "docker" "inspect" "4b719494d4722687d703fbc7d5c4ff2f245a103e1dcc111d0aee4b77c9640ba2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4b719494d4722687d703fbc7d5c4ff2f245a103e1dcc111d0aee4b77c9640ba2", kill_on_drop: false }` [INFO] [stdout] 4b719494d4722687d703fbc7d5c4ff2f245a103e1dcc111d0aee4b77c9640ba2