[INFO] cloning repository https://github.com/ccgauche/morpion_inverse_abstract
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ccgauche/morpion_inverse_abstract" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fccgauche%2Fmorpion_inverse_abstract", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fccgauche%2Fmorpion_inverse_abstract'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0041122c3aabe146b85a933ede004db4f2af00e1
[INFO] checking ccgauche/morpion_inverse_abstract against beta-2021-10-15 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fccgauche%2Fmorpion_inverse_abstract" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ccgauche/morpion_inverse_abstract on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ccgauche/morpion_inverse_abstract
[INFO] finished tweaking git repo https://github.com/ccgauche/morpion_inverse_abstract
[INFO] tweaked toml for git repo https://github.com/ccgauche/morpion_inverse_abstract written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/ccgauche/morpion_inverse_abstract already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: dependencies.serde.feature
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded safe_arch v0.6.0
[INFO] [stderr]   Downloaded flamer v0.4.0
[INFO] [stderr]   Downloaded simba v0.6.0
[INFO] [stderr]   Downloaded wide v0.7.0
[INFO] [stderr]   Downloaded nalgebra v0.29.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c3050d41fdf49a70964b87c4959d9bf7a2311ca16c61f3144613d821b171516
[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" "9c3050d41fdf49a70964b87c4959d9bf7a2311ca16c61f3144613d821b171516", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c3050d41fdf49a70964b87c4959d9bf7a2311ca16c61f3144613d821b171516", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c3050d41fdf49a70964b87c4959d9bf7a2311ca16c61f3144613d821b171516", kill_on_drop: false }`
[INFO] [stdout] 9c3050d41fdf49a70964b87c4959d9bf7a2311ca16c61f3144613d821b171516
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--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] b2e5425e58f8426c7a6639742cd3e160df0ab225f0193b9872eed46a8c2e4545
[INFO] running `Command { std: "docker" "start" "-a" "b2e5425e58f8426c7a6639742cd3e160df0ab225f0193b9872eed46a8c2e4545", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: dependencies.serde.feature
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]     Checking wide v0.7.0
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking simba v0.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]     Checking nalgebra v0.29.0
[INFO] [stderr]     Checking serde v1.0.127
[INFO] [stderr]     Checking serde_json v1.0.66
[INFO] [stderr]     Checking flame v0.2.2
[INFO] [stderr]    Compiling flamer v0.4.0
[INFO] [stderr]     Checking lib-neural-network v0.0.0 (/opt/rustwide/workdir/net)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> net/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(array_methods)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> net/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(crate_visibility_modifier)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lib-neural-network` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "b2e5425e58f8426c7a6639742cd3e160df0ab225f0193b9872eed46a8c2e4545", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2e5425e58f8426c7a6639742cd3e160df0ab225f0193b9872eed46a8c2e4545", kill_on_drop: false }`
[INFO] [stdout] b2e5425e58f8426c7a6639742cd3e160df0ab225f0193b9872eed46a8c2e4545
