[INFO] updating cached repository https://github.com/futile/crufty
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2ebf1d7c2b137d3d52f7f94fd6b2b75abb7e622e
[INFO] checking futile/crufty against beta-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffutile%2Fcrufty" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/futile/crufty on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/futile/crufty
[INFO] finished tweaking git repo https://github.com/futile/crufty
[INFO] tweaked toml for git repo https://github.com/futile/crufty written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/futile/crufty already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=allow" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a030d6b718f3035e263ef01ec732c778749ff0c449a1eb4f6a15aefe8b67369e
[INFO] running `"docker" "start" "-a" "a030d6b718f3035e263ef01ec732c778749ff0c449a1eb4f6a15aefe8b67369e"`
[INFO] [stderr]    Compiling bindgen v0.35.0
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling which v1.0.5
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking getrandom v0.1.6
[INFO] [stderr]     Checking backtrace-sys v0.1.31
[INFO] [stderr]     Checking x11-dl v2.18.3
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking hprof v0.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.98
[INFO] [stderr]     Checking num-bigint v0.2.2
[INFO] [stderr]    Compiling derivative v1.0.2
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking rayon-core v1.5.0
[INFO] [stderr]     Checking backtrace v0.3.33
[INFO] [stderr]     Checking wayland-commons v0.21.13
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]    Compiling clang-sys v0.22.0
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking rand_chacha v0.2.0
[INFO] [stderr]     Checking wayland-client v0.21.13
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking laminar v0.3.0
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking wayland-protocols v0.21.13
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.3
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.5
[INFO] [stderr]    Compiling glium v0.25.1
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking image v0.22.1
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.6
[INFO] [stderr]     Checking serde v1.0.98
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking num-complex v0.2.3
[INFO] [stderr]     Checking bincode v1.1.4
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking toml v0.5.1
[INFO] [stderr]     Checking ecs v0.23.1 (https://github.com/futile/ecs-rs.git#fe3ad8f4)
[INFO] [stderr]     Checking parking_lot_core v0.5.0
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking alga v0.9.1
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking parking_lot v0.8.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling crufty v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking winit v0.19.2
[INFO] [stderr]     Checking nalgebra v0.18.0
[INFO] [stderr]     Checking glutin v0.21.0
[INFO] [stderr]    Compiling enet-sys v0.2.2
[INFO] [stderr]     Checking enet v0.2.2
[INFO] [stderr]     Checking ncollide2d v0.19.2
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(never_type)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(const_fn)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(drain_filter)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(nll)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #![feature(core_intrinsics)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(never_type)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(const_fn)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(drain_filter)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![feature(nll)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #![feature(core_intrinsics)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `crufty`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `crufty`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a030d6b718f3035e263ef01ec732c778749ff0c449a1eb4f6a15aefe8b67369e"`
[INFO] running `"docker" "rm" "-f" "a030d6b718f3035e263ef01ec732c778749ff0c449a1eb4f6a15aefe8b67369e"`
[INFO] [stdout] a030d6b718f3035e263ef01ec732c778749ff0c449a1eb4f6a15aefe8b67369e