[INFO] cloning repository https://github.com/futile/crufty
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/futile/crufty" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffutile%2Fcrufty", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffutile%2Fcrufty'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 887ac6949f3339efcaa232f3e1af6ff5839e3619
[INFO] documenting futile/crufty against 1.47.0 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffutile%2Fcrufty" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/futile/crufty on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-4/source/Cargo.toml
[INFO] crate git repo https://github.com/futile/crufty already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ee894c6f54ee05d7e6ffc0ce4a4153643d73396b26fd25de08dcb933a6d0d04
[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" "2ee894c6f54ee05d7e6ffc0ce4a4153643d73396b26fd25de08dcb933a6d0d04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ee894c6f54ee05d7e6ffc0ce4a4153643d73396b26fd25de08dcb933a6d0d04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ee894c6f54ee05d7e6ffc0ce4a4153643d73396b26fd25de08dcb933a6d0d04", kill_on_drop: false }`
[INFO] [stdout] 2ee894c6f54ee05d7e6ffc0ce4a4153643d73396b26fd25de08dcb933a6d0d04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "RUSTDOCFLAGS=--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7f076166d45667ecbbdf50010a461b4836e2887d7a8cc8278f0fc25508f686e
[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" "f7f076166d45667ecbbdf50010a461b4836e2887d7a8cc8278f0fc25508f686e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling ucd-util v0.1.5
[INFO] [stderr]    Compiling bindgen v0.35.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling same-file v1.0.5
[INFO] [stderr]     Checking vec_map v0.4.0
[INFO] [stderr]     Checking clock_ticks v0.1.1
[INFO] [stderr]    Compiling num-bigint v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling clang-sys v0.22.0
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]    Compiling gl_generator v0.13.1
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]     Checking hprof v0.1.3
[INFO] [stderr]    Compiling walkdir v2.2.9
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]     Checking rusttype v0.8.2
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.4
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.5
[INFO] [stderr]    Compiling glium v0.25.1
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking x11-dl v2.18.4
[INFO] [stderr]     Checking backtrace-sys v0.1.32
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling which v1.0.5
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]    Compiling cexpr v0.2.3
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]     Checking laminar v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]     Checking wayland-commons v0.21.13
[INFO] [stderr]     Checking image v0.22.3
[INFO] [stderr]     Checking wayland-client v0.21.13
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking wayland-protocols v0.21.13
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.6
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking ecs v0.23.1 (https://github.com/futile/ecs-rs.git#fe3ad8f4)
[INFO] [stderr]     Checking toml v0.5.5
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking alga v0.9.2
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling crufty v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking winit v0.19.5
[INFO] [stderr]     Checking nalgebra v0.18.1
[INFO] [stderr]     Checking glutin v0.21.2
[INFO] [stderr]    Compiling enet-sys v0.2.2
[INFO] [stderr]     Checking enet v0.2.3
[INFO] [stderr]     Checking ncollide2d v0.19.2
[INFO] [stderr]  Documenting crufty v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(never_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_fn)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(drain_filter)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(nll)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(core_intrinsics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(never_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_fn)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(drain_filter)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(nll)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(core_intrinsics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 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 document `crufty`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name crufty src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern bincode=/opt/rustwide/target/debug/deps/libbincode-aa7a0b99cadfb102.rmeta --extern clock_ticks=/opt/rustwide/target/debug/deps/libclock_ticks-ca9d3cf3d3a8e97c.rmeta --extern ecs=/opt/rustwide/target/debug/deps/libecs-45298195ea840bdd.rmeta --extern enet=/opt/rustwide/target/debug/deps/libenet-4d4407f71d887192.rmeta --extern glium=/opt/rustwide/target/debug/deps/libglium-fc2f3328c53c316c.rmeta --extern hprof=/opt/rustwide/target/debug/deps/libhprof-7d6800b11f8afdc2.rmeta --extern image=/opt/rustwide/target/debug/deps/libimage-7a9a59a48c60e20b.rmeta --extern laminar=/opt/rustwide/target/debug/deps/liblaminar-c7da4168e263a42b.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-72923b2d9aa06af7.rmeta --extern nalgebra=/opt/rustwide/target/debug/deps/libnalgebra-1b6524fb87706e73.rmeta --extern ncollide2d=/opt/rustwide/target/debug/deps/libncollide2d-40aeeff354592aef.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-39ffcba673cb6622.rmeta --extern ordered_float=/opt/rustwide/target/debug/deps/libordered_float-8becef9a5a072954.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-297ef263e5705c62.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-5e605ecdd8ac7028.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-379e8fc8318ce45f.so --extern smallvec=/opt/rustwide/target/debug/deps/libsmallvec-241d9df956900cec.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-9d19f690c429a014.rmeta --extern typemap=/opt/rustwide/target/debug/deps/libtypemap-07077e2e20f2bd0d.rmeta --extern vec_map=/opt/rustwide/target/debug/deps/libvec_map-30b0efd99705bcdf.rmeta --cap-lints=warn --crate-version 0.0.1` (exit code: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f7f076166d45667ecbbdf50010a461b4836e2887d7a8cc8278f0fc25508f686e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7f076166d45667ecbbdf50010a461b4836e2887d7a8cc8278f0fc25508f686e", kill_on_drop: false }`
[INFO] [stdout] f7f076166d45667ecbbdf50010a461b4836e2887d7a8cc8278f0fc25508f686e
