[INFO] fetching crate forceatlas2 0.4.0...
[INFO] checking forceatlas2-0.4.0 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate forceatlas2 0.4.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate forceatlas2 0.4.0 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 crates.io crate forceatlas2 0.4.0
[INFO] finished tweaking crates.io crate forceatlas2 0.4.0
[INFO] tweaked toml for crates.io crate forceatlas2 0.4.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate forceatlas2 0.4.0 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]  Downloading crates ...
[INFO] [stderr]   Downloaded alloc_counter v0.0.4
[INFO] [stderr]   Downloaded nbody_barnes_hut v0.1.0
[INFO] [stderr]   Downloaded scanrs v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 51fc3c9addee02db5225a80266ad5258b135d030508dc1644a7ca028dd29d7fb
[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" "51fc3c9addee02db5225a80266ad5258b135d030508dc1644a7ca028dd29d7fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51fc3c9addee02db5225a80266ad5258b135d030508dc1644a7ca028dd29d7fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51fc3c9addee02db5225a80266ad5258b135d030508dc1644a7ca028dd29d7fb", kill_on_drop: false }`
[INFO] [stdout] 51fc3c9addee02db5225a80266ad5258b135d030508dc1644a7ca028dd29d7fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stdout] eda15f18e3016c8ae02558fb5a54d41b12329d2f1c761bf0de0384e7752403ce
[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" "eda15f18e3016c8ae02558fb5a54d41b12329d2f1c761bf0de0384e7752403ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking bytemuck v1.7.0
[INFO] [stderr]    Compiling sdl2 v0.34.5
[INFO] [stderr]     Checking scanrs v0.2.1
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]    Compiling freetype-sys v0.13.1
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking maths-traits v0.2.1
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/maths-traits-0.2.1/src/lib.rs:317:1
[INFO] [stdout]     |
[INFO] [stdout] 317 | #![feature(trait_alias)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/maths-traits-0.2.1/src/lib.rs:318:1
[INFO] [stdout]     |
[INFO] [stdout] 318 | #![feature(specialization)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/maths-traits-0.2.1/src/lib.rs:319:1
[INFO] [stdout]     |
[INFO] [stdout] 319 | #![feature(extra_log_consts)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sdl2-sys v0.34.5
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]     Checking freetype v0.7.0
[INFO] [stderr]     Checking servo-fontconfig v0.5.1
[INFO] [stdout] error: aborting due to 3 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 `maths-traits` due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "eda15f18e3016c8ae02558fb5a54d41b12329d2f1c761bf0de0384e7752403ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eda15f18e3016c8ae02558fb5a54d41b12329d2f1c761bf0de0384e7752403ce", kill_on_drop: false }`
[INFO] [stdout] eda15f18e3016c8ae02558fb5a54d41b12329d2f1c761bf0de0384e7752403ce
