[INFO] cloning repository https://github.com/kimkitsik/aerosol
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kimkitsik/aerosol" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkimkitsik%2Faerosol", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkimkitsik%2Faerosol'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6b3c3d22de7574a3fc6714f82a5bd9afbb694836
[INFO] documenting kimkitsik/aerosol against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkimkitsik%2Faerosol" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kimkitsik/aerosol on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/source/.cargo/config
[INFO] started tweaking git repo https://github.com/kimkitsik/aerosol
[INFO] finished tweaking git repo https://github.com/kimkitsik/aerosol
[INFO] tweaked toml for git repo https://github.com/kimkitsik/aerosol written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/kimkitsik/aerosol already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42a81d679588c0e5f0ac5ee313a82f82ba709bdcfc63ccd6931555981ef4eb98
[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" "42a81d679588c0e5f0ac5ee313a82f82ba709bdcfc63ccd6931555981ef4eb98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42a81d679588c0e5f0ac5ee313a82f82ba709bdcfc63ccd6931555981ef4eb98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42a81d679588c0e5f0ac5ee313a82f82ba709bdcfc63ccd6931555981ef4eb98", kill_on_drop: false }`
[INFO] [stdout] 42a81d679588c0e5f0ac5ee313a82f82ba709bdcfc63ccd6931555981ef4eb98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 156efae9f0be690246783ab7273c6a563614bcceb2b706d647e22fe86481c41e
[INFO] running `Command { std: "docker" "start" "-a" "156efae9f0be690246783ab7273c6a563614bcceb2b706d647e22fe86481c41e", kill_on_drop: false }`
[INFO] [stderr]    Compiling cortex-m v0.7.4
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling cortex-m-rt v0.7.1
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]    Compiling heapless v0.7.10
[INFO] [stderr]    Compiling synopsys-usb-otg v0.2.4
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]     Checking usb-device v0.2.8
[INFO] [stderr]     Checking rtic-monotonic v1.0.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling stm32f4 v0.14.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking linked_list_allocator v0.8.11
[INFO] [stderr]     Checking rtic-core v1.0.0
[INFO] [stderr]     Checking embedded-storage v0.2.0
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/linked_list_allocator-0.8.11/src/lib.rs:1:41
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature = "const_mut_refs", feature(const_mut_refs))]
[INFO] [stdout]   |                                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cortex-m-rtic v1.0.0
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `linked_list_allocator` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "156efae9f0be690246783ab7273c6a563614bcceb2b706d647e22fe86481c41e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "156efae9f0be690246783ab7273c6a563614bcceb2b706d647e22fe86481c41e", kill_on_drop: false }`
[INFO] [stdout] 156efae9f0be690246783ab7273c6a563614bcceb2b706d647e22fe86481c41e