[INFO] fetching crate cozal 0.0.2...
[INFO] documenting cozal-0.0.2 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate cozal 0.0.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate cozal 0.0.2 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cozal 0.0.2
[INFO] finished tweaking crates.io crate cozal 0.0.2
[INFO] tweaked toml for crates.io crate cozal 0.0.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded android_log-sys v0.1.2
[INFO] [stderr]   Downloaded num_enum v0.4.3
[INFO] [stderr]   Downloaded calloop v0.4.4
[INFO] [stderr]   Downloaded wayland-sys v0.23.6
[INFO] [stderr]   Downloaded wayland-scanner v0.23.6
[INFO] [stderr]   Downloaded bitmaps v2.1.0
[INFO] [stderr]   Downloaded pin-project v0.4.28
[INFO] [stderr]   Downloaded num_enum_derive v0.4.3
[INFO] [stderr]   Downloaded ndk v0.1.0
[INFO] [stderr]   Downloaded sized-chunks v0.6.5
[INFO] [stderr]   Downloaded wayland-client v0.23.6
[INFO] [stderr]   Downloaded take_mut v0.2.2
[INFO] [stderr]   Downloaded im v15.0.0
[INFO] [stderr]   Downloaded wayland-protocols v0.23.6
[INFO] [stderr]   Downloaded rand_xoshiro v0.4.0
[INFO] [stderr]   Downloaded core-video-sys v0.1.4
[INFO] [stderr]   Downloaded smithay-client-toolkit v0.6.6
[INFO] [stderr]   Downloaded winit v0.22.2
[INFO] [stderr]   Downloaded ndk-sys v0.1.0
[INFO] [stderr]   Downloaded cocoa v0.20.2
[INFO] [stderr]   Downloaded dispatch v0.2.0
[INFO] [stderr]   Downloaded ndk-glue v0.1.0
[INFO] [stderr]   Downloaded flume v0.7.2
[INFO] [stderr]   Downloaded wayland-commons v0.23.6
[INFO] [stderr]   Downloaded pin-project-internal v0.4.28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e74bdf11c1117dff552b4b8ecb326946397d80272209a1684820cfa6dde5bf1d
[INFO] running `Command { std: "docker" "start" "-a" "e74bdf11c1117dff552b4b8ecb326946397d80272209a1684820cfa6dde5bf1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e74bdf11c1117dff552b4b8ecb326946397d80272209a1684820cfa6dde5bf1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e74bdf11c1117dff552b4b8ecb326946397d80272209a1684820cfa6dde5bf1d", kill_on_drop: false }`
[INFO] [stdout] e74bdf11c1117dff552b4b8ecb326946397d80272209a1684820cfa6dde5bf1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e4ea6381d79bda73d5c0f864ae40b29493e6cd4e1d361758c38c54e1eb609aa
[INFO] running `Command { std: "docker" "start" "-a" "4e4ea6381d79bda73d5c0f864ae40b29493e6cd4e1d361758c38c54e1eb609aa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling im v15.0.0
[INFO] [stderr]     Checking rand_xoshiro v0.4.0
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]     Checking futures-util v0.3.16
[INFO] [stderr]     Checking pin-project v0.4.28
[INFO] [stderr]     Checking sized-chunks v0.6.5
[INFO] [stderr]     Checking futures-executor v0.3.16
[INFO] [stderr]     Checking futures v0.3.16
[INFO] [stderr]     Checking flume v0.7.2
[INFO] [stderr]  Documenting cozal v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(wake_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(map_first_last)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[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 document `cozal`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name cozal 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 async_trait=/opt/rustwide/target/debug/deps/libasync_trait-f06c91e824e7365f.so --extern flume=/opt/rustwide/target/debug/deps/libflume-abe76bef1484b3c4.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-43f88003c9026e05.rmeta --extern im=/opt/rustwide/target/debug/deps/libim-74949d533ed3abf1.rmeta --extern pin_project=/opt/rustwide/target/debug/deps/libpin_project-ac0492ddc410f29d.rmeta --extern take_mut=/opt/rustwide/target/debug/deps/libtake_mut-c62e77e3ee5ba6e8.rmeta --cap-lints=warn --crate-version 0.0.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "4e4ea6381d79bda73d5c0f864ae40b29493e6cd4e1d361758c38c54e1eb609aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e4ea6381d79bda73d5c0f864ae40b29493e6cd4e1d361758c38c54e1eb609aa", kill_on_drop: false }`
[INFO] [stdout] 4e4ea6381d79bda73d5c0f864ae40b29493e6cd4e1d361758c38c54e1eb609aa
