[INFO] cloning repository https://github.com/XavilPergis/birblike
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/XavilPergis/birblike" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXavilPergis%2Fbirblike", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXavilPergis%2Fbirblike'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dbf6a4efa45270b8f806cac8f96b673f09cd0c82
[INFO] documenting XavilPergis/birblike against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXavilPergis%2Fbirblike" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/XavilPergis/birblike on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/XavilPergis/birblike
[INFO] finished tweaking git repo https://github.com/XavilPergis/birblike
[INFO] tweaked toml for git repo https://github.com/XavilPergis/birblike written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/XavilPergis/birblike already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e0c794cd35429198f366de8f59ed9e1711309ba4c531fa89eaaf8bfbdcf8649
[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" "4e0c794cd35429198f366de8f59ed9e1711309ba4c531fa89eaaf8bfbdcf8649", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e0c794cd35429198f366de8f59ed9e1711309ba4c531fa89eaaf8bfbdcf8649", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e0c794cd35429198f366de8f59ed9e1711309ba4c531fa89eaaf8bfbdcf8649", kill_on_drop: false }`
[INFO] [stdout] 4e0c794cd35429198f366de8f59ed9e1711309ba4c531fa89eaaf8bfbdcf8649
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ecc57000422f67afbe6dce117ac84594de46c721e2d7f766b871b6e6bb5940ec
[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" "ecc57000422f67afbe6dce117ac84594de46c721e2d7f766b871b6e6bb5940ec", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.0.1
[INFO] [stderr]    Compiling bitflags v1.0.3
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]     Checking byteorder v1.2.3
[INFO] [stderr]    Compiling khronos_api v2.2.0
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling cfg-if v0.1.3
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking downcast-rs v1.0.3
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]     Checking crossbeam v0.3.2
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]    Compiling x11-dl v2.18.0
[INFO] [stderr]     Checking inflate v0.4.2
[INFO] [stderr]     Checking gif v0.10.0
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]     Checking rand v0.5.0
[INFO] [stderr]     Checking shared_library v0.1.8
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]    Compiling wayland-scanner v0.20.10
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking tempfile v3.0.2
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]    Compiling derivative v1.0.0
[INFO] [stderr]     Checking parking_lot v0.5.5
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]     Checking rayon v1.0.1
[INFO] [stderr]    Compiling wayland-client v0.20.10
[INFO] [stderr]    Compiling wayland-protocols v0.20.10
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]    Compiling shred-derive v0.5.0
[INFO] [stderr]     Checking wayland-sys v0.20.10
[INFO] [stderr]     Checking wayland-commons v0.20.10
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]    Compiling glutin v0.16.0
[INFO] [stderr]     Checking shred v0.7.0
[INFO] [stderr]     Checking hibitset v0.5.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.14
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]     Checking shrev v1.0.1
[INFO] [stderr]     Checking specs v0.11.2
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking smithay-client-toolkit v0.2.1
[INFO] [stderr]     Checking winit v0.15.0
[INFO] [stderr]  Documenting birblike v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(crate_visibility_modifier, trace_macros, nll)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[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 document `birblike`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name birblike src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern cgmath=/opt/rustwide/target/debug/deps/libcgmath-412ea5402939e1d8.rmeta --extern gl=/opt/rustwide/target/debug/deps/libgl-1b087efa0c25ccbd.rmeta --extern glutin=/opt/rustwide/target/debug/deps/libglutin-0e21e1fcd9a169d6.rmeta --extern image=/opt/rustwide/target/debug/deps/libimage-73e6472d72019790.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-b2ceb58b348f3565.rmeta --extern specs=/opt/rustwide/target/debug/deps/libspecs-c5b2f6e8725225bb.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "ecc57000422f67afbe6dce117ac84594de46c721e2d7f766b871b6e6bb5940ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecc57000422f67afbe6dce117ac84594de46c721e2d7f766b871b6e6bb5940ec", kill_on_drop: false }`
[INFO] [stdout] ecc57000422f67afbe6dce117ac84594de46c721e2d7f766b871b6e6bb5940ec