[INFO] cloning repository https://github.com/binarybana/sudok
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/binarybana/sudok" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbinarybana%2Fsudok", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbinarybana%2Fsudok'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f6fa2f047974a83bf7c71b7f6b7f5e986ce2fc7a
[INFO] testing binarybana/sudok against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbinarybana%2Fsudok" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/binarybana/sudok on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/binarybana/sudok
[INFO] finished tweaking git repo https://github.com/binarybana/sudok
[INFO] tweaked toml for git repo https://github.com/binarybana/sudok written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/binarybana/sudok already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e79f4d83b3985ced7afeb03677a312a0c062d6b756aba43d589b5527a0cb96e0
[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" "e79f4d83b3985ced7afeb03677a312a0c062d6b756aba43d589b5527a0cb96e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e79f4d83b3985ced7afeb03677a312a0c062d6b756aba43d589b5527a0cb96e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e79f4d83b3985ced7afeb03677a312a0c062d6b756aba43d589b5527a0cb96e0", kill_on_drop: false }`
[INFO] [stdout] e79f4d83b3985ced7afeb03677a312a0c062d6b756aba43d589b5527a0cb96e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9a149bf766cfea1568f54187cdade6eccc42c37214bdd3045b8e34da6bd060ef
[INFO] running `Command { std: "docker" "start" "-a" "9a149bf766cfea1568f54187cdade6eccc42c37214bdd3045b8e34da6bd060ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.34
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling either v1.4.0
[INFO] [stderr]    Compiling rayon-core v1.3.0
[INFO] [stderr]    Compiling regex-syntax v0.4.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling coco v0.1.1
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling rand v0.3.18
[INFO] [stderr]    Compiling num_cpus v1.7.0
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling regex v0.2.3
[INFO] [stderr]    Compiling rayon v0.9.0
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling sudok v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(nll)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | / lazy_static! {
[INFO] [stdout] 17 | |     static ref NEIGHBORS: Vec<Vec<usize>> = {
[INFO] [stdout] 18 | |         let mut v = Vec::with_capacity(81);
[INFO] [stdout] 19 | |         for i in 0..81 {
[INFO] [stdout] ...  |
[INFO] [stdout] 50 | |     };
[INFO] [stdout] 51 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sudok`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "9a149bf766cfea1568f54187cdade6eccc42c37214bdd3045b8e34da6bd060ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a149bf766cfea1568f54187cdade6eccc42c37214bdd3045b8e34da6bd060ef", kill_on_drop: false }`
[INFO] [stdout] 9a149bf766cfea1568f54187cdade6eccc42c37214bdd3045b8e34da6bd060ef