[INFO] fetching crate par-dfs 0.0.7... [INFO] checking par-dfs-0.0.7 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] extracting crate par-dfs 0.0.7 into /workspace/builds/worker-1-tc1/source [INFO] validating manifest of crates.io crate par-dfs 0.0.7 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate par-dfs 0.0.7 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate par-dfs 0.0.7 [INFO] tweaked toml for crates.io crate par-dfs 0.0.7 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate crates.io crate par-dfs 0.0.7 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded thiserror v1.0.34 [INFO] [stderr] Downloaded rayon-core v1.9.3 [INFO] [stderr] Downloaded thiserror-impl v1.0.34 [INFO] [stderr] Downloaded futures-sink v0.3.24 [INFO] [stderr] Downloaded tokio-stream v0.1.9 [INFO] [stderr] Downloaded ctor v0.1.23 [INFO] [stderr] Downloaded futures-macro v0.3.24 [INFO] [stderr] Downloaded async-trait v0.1.57 [INFO] [stderr] Downloaded serde_derive v1.0.144 [INFO] [stderr] Downloaded serde v1.0.144 [INFO] [stderr] Downloaded futures-executor v0.3.24 [INFO] [stderr] Downloaded futures v0.3.24 [INFO] [stderr] Downloaded futures-util v0.3.24 [INFO] [stderr] Downloaded rayon v1.5.3 [INFO] [stderr] Downloaded futures-channel v0.3.24 [INFO] [stderr] Downloaded crossbeam-epoch v0.9.10 [INFO] [stderr] Downloaded futures-task v0.3.24 [INFO] [stderr] Downloaded paste v1.0.9 [INFO] [stderr] Downloaded tokio-test v0.4.2 [INFO] [stderr] Downloaded tokio v1.21.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0b1338dae39274713ecdb1690da15b56596414dfd26669ebe0d4a2ebe7a8803a [INFO] running `Command { std: "docker" "start" "-a" "0b1338dae39274713ecdb1690da15b56596414dfd26669ebe0d4a2ebe7a8803a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0b1338dae39274713ecdb1690da15b56596414dfd26669ebe0d4a2ebe7a8803a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0b1338dae39274713ecdb1690da15b56596414dfd26669ebe0d4a2ebe7a8803a", kill_on_drop: false }` [INFO] [stdout] 0b1338dae39274713ecdb1690da15b56596414dfd26669ebe0d4a2ebe7a8803a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e769c7c3fe492682a522a0259063ce3a5d14b6561ab89eb33a9bb9ecb6cb2fd3 [INFO] running `Command { std: "docker" "start" "-a" "e769c7c3fe492682a522a0259063ce3a5d14b6561ab89eb33a9bb9ecb6cb2fd3", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.43 [INFO] [stderr] Compiling quote v1.0.21 [INFO] [stderr] Compiling unicode-ident v1.0.3 [INFO] [stderr] Compiling syn v1.0.99 [INFO] [stderr] Compiling libc v0.2.132 [INFO] [stderr] Checking once_cell v1.14.0 [INFO] [stderr] Compiling futures-core v0.3.24 [INFO] [stderr] Compiling crossbeam-utils v0.8.11 [INFO] [stderr] Compiling serde_derive v1.0.144 [INFO] [stderr] Compiling crossbeam-epoch v0.9.10 [INFO] [stderr] Compiling serde v1.0.144 [INFO] [stderr] Checking pin-project-lite v0.2.9 [INFO] [stderr] Compiling tokio v1.21.1 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling rayon-core v1.9.3 [INFO] [stderr] Compiling futures-task v0.3.24 [INFO] [stderr] Compiling indexmap v1.9.1 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling futures-channel v0.3.24 [INFO] [stderr] Checking futures-sink v0.3.24 [INFO] [stderr] Compiling futures-util v0.3.24 [INFO] [stderr] Compiling serde_json v1.0.85 [INFO] [stderr] Checking either v1.8.0 [INFO] [stderr] Compiling rayon v1.5.3 [INFO] [stderr] Checking ryu v1.0.11 [INFO] [stderr] Checking itoa v1.0.3 [INFO] [stderr] Checking os_str_bytes v6.3.0 [INFO] [stderr] Checking plotters-backend v0.3.4 [INFO] [stderr] Checking ciborium-io v0.2.0 [INFO] [stderr] Compiling heck v0.4.0 [INFO] [stderr] Checking half v1.8.2 [INFO] [stderr] Checking itertools v0.10.3 [INFO] [stderr] Checking termcolor v1.1.3 [INFO] [stderr] Checking futures-io v0.3.24 [INFO] [stderr] Compiling anyhow v1.0.64 [INFO] [stderr] Checking regex-syntax v0.6.27 [INFO] [stderr] Checking clap_lex v0.2.4 [INFO] [stderr] Checking plotters-svg v0.3.3 [INFO] [stderr] Checking textwrap v0.15.0 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Checking crossbeam-channel v0.5.6 [INFO] [stderr] Checking ciborium-ll v0.2.0 [INFO] [stderr] Checking yansi v0.5.1 [INFO] [stderr] Checking bytes v1.2.1 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Compiling paste v1.0.9 [INFO] [stderr] Checking pretty_assertions v1.3.0 [INFO] [stderr] Checking crossbeam-deque v0.8.2 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking plotters v0.3.4 [INFO] [stderr] Checking regex v1.6.0 [INFO] [stderr] Checking criterion-plot v0.5.0 [INFO] [stderr] Checking futures v0.3.24 [INFO] [stderr] Compiling tokio-macros v1.8.0 [INFO] [stderr] Compiling thiserror-impl v1.0.34 [INFO] [stderr] Compiling async-stream-impl v0.3.3 [INFO] [stderr] Compiling clap_derive v3.2.18 [INFO] [stderr] Checking async-stream v0.3.3 [INFO] [stderr] Checking thiserror v1.0.34 [INFO] [stderr] Checking par-dfs v0.0.7 (/opt/rustwide/workdir) [INFO] [stdout] warning: methods `len`, `is_empty`, and `split_off` are never used [INFO] [stdout] --> src/sync/mod.rs:36:8 [INFO] [stdout] | [INFO] [stdout] 34 | pub(crate) trait Queue { [INFO] [stdout] | ----- methods in this trait [INFO] [stdout] 35 | /// Returns the number of items in the queue [INFO] [stdout] 36 | fn len(&self) -> usize; [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | fn is_empty(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 65 | fn split_off(&mut self, at: usize) -> Self; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking clap v3.2.21 [INFO] [stderr] Checking tokio-stream v0.1.9 [INFO] [stderr] Checking tokio-test v0.4.2 [INFO] [stderr] Checking ciborium v0.2.0 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.4.0 [INFO] [stdout] warning: unused import: `sync_collatz::*` [INFO] [stdout] --> benches/benches.rs:198:9 [INFO] [stdout] | [INFO] [stdout] 198 | pub use sync_collatz::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> benches/benches.rs:70:17 [INFO] [stdout] | [INFO] [stdout] 47 | Some((depth, Ok(n))) => { [INFO] [stdout] | -------------------- matches all the relevant values [INFO] [stdout] ... [INFO] [stdout] 70 | Some((_, n)) => Some(n), [INFO] [stdout] | ^^^^^^^^^^^^ no value can reach this [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `len`, `is_empty`, and `split_off` are never used [INFO] [stdout] --> src/sync/mod.rs:36:8 [INFO] [stdout] | [INFO] [stdout] 34 | pub(crate) trait Queue { [INFO] [stdout] | ----- methods in this trait [INFO] [stdout] 35 | /// Returns the number of items in the queue [INFO] [stdout] 36 | fn len(&self) -> usize; [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | fn is_empty(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 65 | fn split_off(&mut self, at: usize) -> Self; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.56s [INFO] running `Command { std: "docker" "inspect" "e769c7c3fe492682a522a0259063ce3a5d14b6561ab89eb33a9bb9ecb6cb2fd3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e769c7c3fe492682a522a0259063ce3a5d14b6561ab89eb33a9bb9ecb6cb2fd3", kill_on_drop: false }` [INFO] [stdout] e769c7c3fe492682a522a0259063ce3a5d14b6561ab89eb33a9bb9ecb6cb2fd3