[INFO] fetching crate par-dfs 0.0.7...
[INFO] checking par-dfs-0.0.7 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] extracting crate par-dfs 0.0.7 into /workspace/builds/worker-2-tc1/source
[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-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate par-dfs 0.0.7 on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded plotters-svg v0.3.3
[INFO] [stderr]   Downloaded plotters-backend v0.3.4
[INFO] [stderr]   Downloaded paste v1.0.9
[INFO] [stderr]   Downloaded ctor v0.1.23
[INFO] [stderr]   Downloaded output_vt100 v0.1.3
[INFO] [stderr]   Downloaded clap v3.2.21
[INFO] [stderr]   Downloaded pretty_assertions v1.3.0
[INFO] [stderr]   Downloaded plotters v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e94d2b41b10fa042b8998e015604c1bd507bc27da6e76bda83863f8d5ca5dec0
[INFO] running `Command { std: "docker" "start" "-a" "e94d2b41b10fa042b8998e015604c1bd507bc27da6e76bda83863f8d5ca5dec0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e94d2b41b10fa042b8998e015604c1bd507bc27da6e76bda83863f8d5ca5dec0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e94d2b41b10fa042b8998e015604c1bd507bc27da6e76bda83863f8d5ca5dec0", kill_on_drop: false }`
[INFO] [stdout] e94d2b41b10fa042b8998e015604c1bd507bc27da6e76bda83863f8d5ca5dec0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d3840d232cf4577c8b19f7e04f020273f0a0acf3db1f11fa6db40e1c3a9b6b7
[INFO] running `Command { std: "docker" "start" "-a" "2d3840d232cf4577c8b19f7e04f020273f0a0acf3db1f11fa6db40e1c3a9b6b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling tokio v1.21.1
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]     Checking crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]     Checking ciborium-io v0.2.0
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking futures-io v0.3.24
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking ciborium-ll v0.2.0
[INFO] [stderr]     Checking yansi v0.5.1
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]    Compiling paste v1.0.9
[INFO] [stderr]     Checking pretty_assertions v1.3.0
[INFO] [stderr]     Checking plotters-svg v0.3.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.10
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking rayon-core v1.9.3
[INFO] [stderr]     Checking plotters v0.3.4
[INFO] [stderr]     Checking rayon v1.5.3
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking futures v0.3.24
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.34
[INFO] [stderr]    Compiling clap_derive v3.2.18
[INFO] [stderr]    Compiling async-stream-impl v0.3.3
[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<I, E> {
[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)]` (part of `#[warn(unused)]`) on by default
[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)]` (part of `#[warn(unused)]`) on by default
[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<I, E> {
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.57s
[INFO] running `Command { std: "docker" "inspect" "2d3840d232cf4577c8b19f7e04f020273f0a0acf3db1f11fa6db40e1c3a9b6b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d3840d232cf4577c8b19f7e04f020273f0a0acf3db1f11fa6db40e1c3a9b6b7", kill_on_drop: false }`
[INFO] [stdout] 2d3840d232cf4577c8b19f7e04f020273f0a0acf3db1f11fa6db40e1c3a9b6b7
