[INFO] cloning repository https://github.com/romnn/par-dfs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/romnn/par-dfs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fromnn%2Fpar-dfs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fromnn%2Fpar-dfs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6e69678ab1cbda48f2d51da14eea81d043630477 [INFO] checking romnn/par-dfs against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fromnn%2Fpar-dfs" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/romnn/par-dfs [INFO] removed 0 missing examples [INFO] finished tweaking git repo https://github.com/romnn/par-dfs [INFO] tweaked toml for git repo https://github.com/romnn/par-dfs written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/romnn/par-dfs 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 git repo https://github.com/romnn/par-dfs 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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 56713dfd2eb24cb3c7c6c14fbeb55f2eec6888b1330bede0cd0d6894a56d3450 [INFO] running `Command { std: "docker" "start" "-a" "56713dfd2eb24cb3c7c6c14fbeb55f2eec6888b1330bede0cd0d6894a56d3450", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "56713dfd2eb24cb3c7c6c14fbeb55f2eec6888b1330bede0cd0d6894a56d3450", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "56713dfd2eb24cb3c7c6c14fbeb55f2eec6888b1330bede0cd0d6894a56d3450", kill_on_drop: false }` [INFO] [stdout] 56713dfd2eb24cb3c7c6c14fbeb55f2eec6888b1330bede0cd0d6894a56d3450 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] cdac5bc967b8efa8bfc56a380608fd03f4942435a37db4f130029add98c563bd [INFO] running `Command { std: "docker" "start" "-a" "cdac5bc967b8efa8bfc56a380608fd03f4942435a37db4f130029add98c563bd", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.92 [INFO] [stderr] Checking futures-sink v0.3.31 [INFO] [stderr] Compiling serde v1.0.217 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling serde_json v1.0.134 [INFO] [stderr] Checking once_cell v1.20.2 [INFO] [stderr] Checking half v2.4.1 [INFO] [stderr] Checking regex-syntax v0.8.5 [INFO] [stderr] Checking itoa v1.0.14 [INFO] [stderr] Checking ciborium-io v0.2.2 [INFO] [stderr] Checking plotters-backend v0.3.7 [INFO] [stderr] Checking clap_builder v4.5.23 [INFO] [stderr] Checking similar v2.6.0 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking rayon v1.10.0 [INFO] [stderr] Checking cast v0.3.0 [INFO] [stderr] Checking futures-channel v0.3.31 [INFO] [stderr] Compiling anyhow v1.0.95 [INFO] [stderr] Checking is-terminal v0.4.13 [INFO] [stderr] Checking console v0.15.10 [INFO] [stderr] Checking oorandom v11.1.4 [INFO] [stderr] Checking anes v0.1.6 [INFO] [stderr] Checking plotters-svg v0.3.7 [INFO] [stderr] Checking ciborium-ll v0.2.2 [INFO] [stderr] Checking plotters v0.3.7 [INFO] [stderr] Checking regex-automata v0.4.9 [INFO] [stderr] Checking similar-asserts v1.6.0 [INFO] [stderr] Compiling quote v1.0.38 [INFO] [stderr] Compiling syn v2.0.94 [INFO] [stderr] Checking criterion-plot v0.5.0 [INFO] [stderr] Checking regex v1.11.1 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling serde_derive v1.0.217 [INFO] [stderr] Compiling pin-project-internal v1.1.7 [INFO] [stderr] Compiling tokio-macros v2.4.0 [INFO] [stderr] Compiling thiserror-impl v2.0.9 [INFO] [stderr] Compiling async-trait v0.1.83 [INFO] [stderr] Compiling clap_derive v4.5.18 [INFO] [stderr] Compiling async-stream-impl v0.3.6 [INFO] [stderr] Checking async-stream v0.3.6 [INFO] [stderr] Checking tokio v1.42.0 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Checking pin-project v1.1.7 [INFO] [stderr] Checking thiserror v2.0.9 [INFO] [stderr] Checking clap v4.5.23 [INFO] [stderr] Checking tokio-stream v0.1.17 [INFO] [stderr] Checking tokio-test v0.4.4 [INFO] [stderr] Checking futures-executor v0.3.31 [INFO] [stderr] Checking futures v0.3.31 [INFO] [stderr] Checking par-dfs v0.0.7 (/opt/rustwide/workdir) [INFO] [stderr] Checking collatz-dfs v0.1.0 (/opt/rustwide/workdir/crates/collatz-dfs) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:121:40 [INFO] [stdout] | [INFO] [stdout] 121 | queue: VecDeque::from_iter([(0, Ok(start))]), [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 [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:121:45 [INFO] [stdout] | [INFO] [stdout] 121 | queue: VecDeque::from_iter([(0, Ok(start))]), [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:139:37 [INFO] [stdout] | [INFO] [stdout] 139 | return Some(Ok(n)); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:146:58 [INFO] [stdout] | [INFO] [stdout] 146 | self.queue.push_back((depth + 1, Ok(even))); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:154:58 [INFO] [stdout] | [INFO] [stdout] 154 | self.queue.push_back((depth + 1, Ok(odd))); [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:157:22 [INFO] [stdout] | [INFO] [stdout] 157 | Some(Ok(n)) [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:159:34 [INFO] [stdout] | [INFO] [stdout] 159 | Some((_, n)) => Some(n), [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:62:27 [INFO] [stdout] | [INFO] [stdout] 62 | queue.add(Ok(Self(even))); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:67:27 [INFO] [stdout] | [INFO] [stdout] 67 | queue.add(Ok(Self((n - 1) / 3))); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this type continue be must used: Result>>, Infallible> [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:77:74 [INFO] [stdout] | [INFO] [stdout] 77 | fn children(&self, _depth: usize) -> NodeIter { [INFO] [stdout] | __________________________________________________________________________^ [INFO] [stdout] 78 | | Ok(Box::new(self.collatz_children())) [INFO] [stdout] 79 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mustuse_in_always_ok)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this type continue be must used: Result>>, Infallible> [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:78:13 [INFO] [stdout] | [INFO] [stdout] 78 | Ok(Box::new(self.collatz_children())) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this type continue be must used: Result> + std::marker::Send + Unpin>>, Infallible> [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:97:65 [INFO] [stdout] | [INFO] [stdout] 97 | ) -> Result, Self::Error> { [INFO] [stdout] | _________________________________________________________________^ [INFO] [stdout] 98 | | let stream = futures::stream::iter(self.collatz_children()).boxed(); [INFO] [stdout] 99 | | Ok(Box::pin(stream)) [INFO] [stdout] 100 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this type continue be must used: Result> + std::marker::Send + Unpin>>, Infallible> [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:89:5 [INFO] [stdout] | [INFO] [stdout] 89 | #[async_trait::async_trait] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the attribute macro `async_trait::async_trait` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this type continue be must used: Result> + std::marker::Send + Unpin>>, Infallible> [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:99:13 [INFO] [stdout] | [INFO] [stdout] 99 | Ok(Box::pin(stream)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:198:26 [INFO] [stdout] | [INFO] [stdout] 198 | .map(|n| n.ok().map(Into::into)) [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:121:40 [INFO] [stdout] | [INFO] [stdout] 121 | queue: VecDeque::from_iter([(0, Ok(start))]), [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 [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:121:45 [INFO] [stdout] | [INFO] [stdout] 121 | queue: VecDeque::from_iter([(0, Ok(start))]), [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:139:37 [INFO] [stdout] | [INFO] [stdout] 139 | return Some(Ok(n)); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:146:58 [INFO] [stdout] | [INFO] [stdout] 146 | self.queue.push_back((depth + 1, Ok(even))); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:154:58 [INFO] [stdout] | [INFO] [stdout] 154 | self.queue.push_back((depth + 1, Ok(odd))); [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:157:22 [INFO] [stdout] | [INFO] [stdout] 157 | Some(Ok(n)) [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:159:34 [INFO] [stdout] | [INFO] [stdout] 159 | Some((_, n)) => Some(n), [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:62:27 [INFO] [stdout] | [INFO] [stdout] 62 | queue.add(Ok(Self(even))); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:67:27 [INFO] [stdout] | [INFO] [stdout] 67 | queue.add(Ok(Self((n - 1) / 3))); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this type continue be must used: Result>>, Infallible> [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:77:74 [INFO] [stdout] | [INFO] [stdout] 77 | fn children(&self, _depth: usize) -> NodeIter { [INFO] [stdout] | __________________________________________________________________________^ [INFO] [stdout] 78 | | Ok(Box::new(self.collatz_children())) [INFO] [stdout] 79 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mustuse_in_always_ok)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this type continue be must used: Result>>, Infallible> [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:78:13 [INFO] [stdout] | [INFO] [stdout] 78 | Ok(Box::new(self.collatz_children())) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this type continue be must used: Result> + std::marker::Send + Unpin>>, Infallible> [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:97:65 [INFO] [stdout] | [INFO] [stdout] 97 | ) -> Result, Self::Error> { [INFO] [stdout] | _________________________________________________________________^ [INFO] [stdout] 98 | | let stream = futures::stream::iter(self.collatz_children()).boxed(); [INFO] [stdout] 99 | | Ok(Box::pin(stream)) [INFO] [stdout] 100 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this type continue be must used: Result> + std::marker::Send + Unpin>>, Infallible> [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:89:5 [INFO] [stdout] | [INFO] [stdout] 89 | #[async_trait::async_trait] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the attribute macro `async_trait::async_trait` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this type continue be must used: Result> + std::marker::Send + Unpin>>, Infallible> [INFO] [stdout] --> crates/collatz-dfs/src/lib.rs:99:13 [INFO] [stdout] | [INFO] [stdout] 99 | Ok(Box::pin(stream)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `collatz-dfs` (lib test) due to 10 previous errors; 5 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `collatz-dfs` (lib) due to 9 previous errors; 5 warnings emitted [INFO] running `Command { std: "docker" "inspect" "cdac5bc967b8efa8bfc56a380608fd03f4942435a37db4f130029add98c563bd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cdac5bc967b8efa8bfc56a380608fd03f4942435a37db4f130029add98c563bd", kill_on_drop: false }` [INFO] [stdout] cdac5bc967b8efa8bfc56a380608fd03f4942435a37db4f130029add98c563bd