[INFO] cloning repository https://github.com/gallowstree/tsurust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gallowstree/tsurust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgallowstree%2Ftsurust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgallowstree%2Ftsurust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9856916d1d08e8a2be95dd13e91d4ae614c1997a
[INFO] documenting gallowstree/tsurust 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%2Fgallowstree%2Ftsurust" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gallowstree/tsurust 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/gallowstree/tsurust
[INFO] finished tweaking git repo https://github.com/gallowstree/tsurust
[INFO] tweaked toml for git repo https://github.com/gallowstree/tsurust written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/gallowstree/tsurust 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] running `Command { std: "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" "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] 1bfecffdc5dca31c97b8832bec839d71457a5f7a57137ecee8c3587b3e11e0c1
[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" "1bfecffdc5dca31c97b8832bec839d71457a5f7a57137ecee8c3587b3e11e0c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1bfecffdc5dca31c97b8832bec839d71457a5f7a57137ecee8c3587b3e11e0c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bfecffdc5dca31c97b8832bec839d71457a5f7a57137ecee8c3587b3e11e0c1", kill_on_drop: false }`
[INFO] [stdout] 1bfecffdc5dca31c97b8832bec839d71457a5f7a57137ecee8c3587b3e11e0c1
[INFO] running `Command { std: "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" "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] 5e31c14c24e907b2340c25b0f6d4121814b2fd4babb63dffe277d09b2291db71
[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" "5e31c14c24e907b2340c25b0f6d4121814b2fd4babb63dffe277d09b2291db71", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.57
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]    Compiling libm v0.1.3
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking claxon v0.3.3
[INFO] [stderr]     Checking immi v1.0.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling backtrace v0.3.26
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling minimp3-sys v0.3.1
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking stb_truetype v0.2.6
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]     Checking ogg v0.7.0
[INFO] [stderr]     Checking generic-array v0.12.0
[INFO] [stderr]    Compiling wayland-scanner v0.21.12
[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]     Checking sid v0.5.2
[INFO] [stderr]     Checking num-rational v0.2.1
[INFO] [stderr]     Checking wayland-sys v0.21.12
[INFO] [stderr]     Checking lewton v0.9.4
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking rusttype v0.7.6
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking x11-dl v2.18.3
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking nix v0.11.0
[INFO] [stderr]     Checking alsa-sys v0.1.2
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking slice-deque v0.2.4
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking alga v0.8.2
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking cpal v0.8.2
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking minimp3 v0.3.3
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.5
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.3
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking cgmath v0.14.1
[INFO] [stderr]    Compiling wayland-client v0.21.12
[INFO] [stderr]    Compiling wayland-protocols v0.21.12
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking nalgebra v0.17.3
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking gilrs-core v0.2.2
[INFO] [stderr]     Checking gilrs v0.7.1
[INFO] [stderr]     Checking wayland-commons v0.21.12
[INFO] [stderr]     Checking rodio v0.8.1
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling euclid_macros v0.1.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]    Compiling derivative v1.0.2
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking xmlparser v0.3.0
[INFO] [stderr]     Checking svgparser v0.8.1
[INFO] [stderr]     Checking euclid v0.19.8
[INFO] [stderr]     Checking lyon_geom v0.12.6
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking lyon_path v0.13.1
[INFO] [stderr]     Checking image v0.21.1
[INFO] [stderr]     Checking lyon_svg v0.13.0
[INFO] [stderr]     Checking lyon_algorithms v0.13.1
[INFO] [stderr]     Checking lyon_tessellation v0.13.1
[INFO] [stderr]     Checking lyon_extra v0.13.0
[INFO] [stderr]     Checking lyon v0.13.1
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.5
[INFO] [stderr]     Checking winit v0.19.1
[INFO] [stderr]     Checking serde v1.0.92
[INFO] [stderr]     Checking glutin v0.21.0
[INFO] [stderr]     Checking ncollide2d v0.18.4
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking quicksilver v0.3.12
[INFO] [stderr]  Documenting tsurust v0.1.0 (/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(impl_trait_in_bindings)]
[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 `tsurust`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name tsurust 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 arrayvec=/opt/rustwide/target/debug/deps/libarrayvec-3eaa5f6a5b09b4c9.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-005e49e45ec37669.rmeta --extern quicksilver=/opt/rustwide/target/debug/deps/libquicksilver-c0142ec052856ecb.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-22a4648667e764ca.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "5e31c14c24e907b2340c25b0f6d4121814b2fd4babb63dffe277d09b2291db71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e31c14c24e907b2340c25b0f6d4121814b2fd4babb63dffe277d09b2291db71", kill_on_drop: false }`
[INFO] [stdout] 5e31c14c24e907b2340c25b0f6d4121814b2fd4babb63dffe277d09b2291db71
