[INFO] cloning repository https://github.com/miyamofigo/wave-player
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/miyamofigo/wave-player" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiyamofigo%2Fwave-player", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiyamofigo%2Fwave-player'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b16a73eb4e5f5cc5f3d87092ddf71cef1e5d6bed
[INFO] documenting miyamofigo/wave-player against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiyamofigo%2Fwave-player" "/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/miyamofigo/wave-player on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/miyamofigo/wave-player
[INFO] finished tweaking git repo https://github.com/miyamofigo/wave-player
[INFO] tweaked toml for git repo https://github.com/miyamofigo/wave-player written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/miyamofigo/wave-player already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57fb00e9eea4fa096031e9ccf7580bb3f6d436a684591b4f456071180b34d331
[INFO] running `Command { std: "docker" "start" "-a" "57fb00e9eea4fa096031e9ccf7580bb3f6d436a684591b4f456071180b34d331", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57fb00e9eea4fa096031e9ccf7580bb3f6d436a684591b4f456071180b34d331", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57fb00e9eea4fa096031e9ccf7580bb3f6d436a684591b4f456071180b34d331", kill_on_drop: false }`
[INFO] [stdout] 57fb00e9eea4fa096031e9ccf7580bb3f6d436a684591b4f456071180b34d331
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d4d27e1e666ba3fc344e1c8e7f6fcdb387190833dbf8c828c225434572d948e
[INFO] running `Command { std: "docker" "start" "-a" "9d4d27e1e666ba3fc344e1c8e7f6fcdb387190833dbf8c828c225434572d948e", kill_on_drop: false }`
[INFO] [stderr]  Documenting wave-player2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `self::alloc::heap`
[INFO] [stdout]  --> src/io.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use self::alloc::heap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ no `heap` in the root
[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(alloc, libc, heap_api, unboxed_closures, unique)]
[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] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `wave-player2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name wave_player2 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 --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "9d4d27e1e666ba3fc344e1c8e7f6fcdb387190833dbf8c828c225434572d948e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d4d27e1e666ba3fc344e1c8e7f6fcdb387190833dbf8c828c225434572d948e", kill_on_drop: false }`
[INFO] [stdout] 9d4d27e1e666ba3fc344e1c8e7f6fcdb387190833dbf8c828c225434572d948e
