[INFO] cloning repository https://github.com/nikolads/fmi-parallel-dfs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nikolads/fmi-parallel-dfs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikolads%2Ffmi-parallel-dfs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikolads%2Ffmi-parallel-dfs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 34d796073122691d5e9ca3476fc9c3e31c470457
[INFO] testing nikolads/fmi-parallel-dfs against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikolads%2Ffmi-parallel-dfs" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nikolads/fmi-parallel-dfs on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nikolads/fmi-parallel-dfs
[INFO] finished tweaking git repo https://github.com/nikolads/fmi-parallel-dfs
[INFO] tweaked toml for git repo https://github.com/nikolads/fmi-parallel-dfs written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/nikolads/fmi-parallel-dfs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea383237eb10e220536707a90854f2906462df9316d613f199eddf0bb4fa6ff3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ea383237eb10e220536707a90854f2906462df9316d613f199eddf0bb4fa6ff3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea383237eb10e220536707a90854f2906462df9316d613f199eddf0bb4fa6ff3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea383237eb10e220536707a90854f2906462df9316d613f199eddf0bb4fa6ff3", kill_on_drop: false }`
[INFO] [stdout] ea383237eb10e220536707a90854f2906462df9316d613f199eddf0bb4fa6ff3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 39b554cd8cf05b72404f48efb13c72087d482ebdbd9d7a6c99d02701f190c267
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "39b554cd8cf05b72404f48efb13c72087d482ebdbd9d7a6c99d02701f190c267", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]    Compiling spin v0.4.10
[INFO] [stderr]    Compiling arrayvec v0.4.8
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]    Compiling heck v0.3.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling structopt-derive v0.2.13
[INFO] [stderr]    Compiling structopt v0.2.13
[INFO] [stderr]    Compiling parallel-dfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(no_more_cas)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]   --> src/dfs/cheat/util.rs:72:25
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let current = owner.compare_and_swap(usize::MAX, root, Ordering::SeqCst);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: expected a `FnMut<(u32,)>` closure, found `std::sync::atomic::Ordering`
[INFO] [stdout]   --> src/dfs/par/mod.rs:62:10
[INFO] [stdout]    |
[INFO] [stdout] 62 |         .fetch_update(
[INFO] [stdout]    |          ^^^^^^^^^^^^ expected an `FnMut<(u32,)>` closure, found `std::sync::atomic::Ordering`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FnMut<(u32,)>` is not implemented for `std::sync::atomic::Ordering`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/dfs/par/mod.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 | /             |found| match found > new {
[INFO] [stdout] 64 | |                 true => Some(new),
[INFO] [stdout] 65 | |                 false => None,
[INFO] [stdout] 66 | |             },
[INFO] [stdout]    | |_____________^ expected enum `std::sync::atomic::Ordering`, found closure
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `std::sync::atomic::Ordering`
[INFO] [stdout]            found closure `[closure@src/dfs/par/mod.rs:63:13: 66:14]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `parallel-dfs` due to 4 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "39b554cd8cf05b72404f48efb13c72087d482ebdbd9d7a6c99d02701f190c267", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39b554cd8cf05b72404f48efb13c72087d482ebdbd9d7a6c99d02701f190c267", kill_on_drop: false }`
[INFO] [stdout] 39b554cd8cf05b72404f48efb13c72087d482ebdbd9d7a6c99d02701f190c267