[INFO] cloning repository https://github.com/sjoerdsimons/ledboard
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sjoerdsimons/ledboard" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjoerdsimons%2Fledboard", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjoerdsimons%2Fledboard'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1a2b9c27cbda2cff86805b30447d321ebf26bac4
[INFO] documenting sjoerdsimons/ledboard 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%2Fsjoerdsimons%2Fledboard" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sjoerdsimons/ledboard 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-4/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/sjoerdsimons/ledboard
[INFO] finished tweaking git repo https://github.com/sjoerdsimons/ledboard
[INFO] tweaked toml for git repo https://github.com/sjoerdsimons/ledboard written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/sjoerdsimons/ledboard 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e9f0e421f89f15d5d67598f8e4b07698bf65fc545f96bdb2c0fc5c141113d42f
[INFO] running `Command { std: "docker" "start" "-a" "e9f0e421f89f15d5d67598f8e4b07698bf65fc545f96bdb2c0fc5c141113d42f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9f0e421f89f15d5d67598f8e4b07698bf65fc545f96bdb2c0fc5c141113d42f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9f0e421f89f15d5d67598f8e4b07698bf65fc545f96bdb2c0fc5c141113d42f", kill_on_drop: false }`
[INFO] [stdout] e9f0e421f89f15d5d67598f8e4b07698bf65fc545f96bdb2c0fc5c141113d42f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 68358fa83621dbdcc518864d1452ac216cc0830d867a132badad0161c79af818
[INFO] running `Command { std: "docker" "start" "-a" "68358fa83621dbdcc518864d1452ac216cc0830d867a132badad0161c79af818", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling cortex-m v0.7.4
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling anyhow v1.0.52
[INFO] [stderr]    Compiling defmt v0.3.0
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling chiptool v0.1.0 (https://github.com/embassy-rs/chiptool?rev=31c3c09197d63d29eddbf4c70d6158edac0ac5d3#31c3c091)
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling textwrap v0.14.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling defmt-macros v0.3.1
[INFO] [stderr]    Compiling defmt-parser v0.3.0
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling cortex-m-rt v0.7.1
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]     Checking futures-sink v0.3.19
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling critical-section v0.2.5
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling heapless v0.7.9
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]     Checking futures-io v0.3.19
[INFO] [stderr]    Compiling embassy v0.1.0 (https://github.com/embassy-rs/embassy#c0e94a70)
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking usb-device v0.2.8
[INFO] [stderr]    Compiling defmt-rtt v0.3.1
[INFO] [stderr]    Compiling panic-probe v0.3.0
[INFO] [stderr]    Compiling ledboard v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling seq-macro v0.2.2
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking sdio-host v0.5.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]     Checking bxcan v0.6.2
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking embedded-hal v0.2.6
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking spin v0.9.2
[INFO] [stderr]     Checking rotary-encoder-hal v0.5.0 (https://github.com/leshow/rotary-encoder-hal#09800259)
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling os_str_bytes v6.0.0
[INFO] [stderr]    Compiling xmltree v0.8.0
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling riscv-target v0.1.2
[INFO] [stderr]    Compiling atomic-polyfill v0.1.5
[INFO] [stderr]    Compiling darling_core v0.13.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling serde_derive v1.0.133
[INFO] [stderr]    Compiling clap_derive v3.0.0
[INFO] [stderr]    Compiling futures-macro v0.3.19
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]    Compiling darling_macro v0.13.1
[INFO] [stderr]     Checking pin-project v1.0.10
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling darling v0.13.1
[INFO] [stderr]    Compiling svd-parser v0.10.2
[INFO] [stderr]    Compiling embassy-macros v0.1.0 (https://github.com/embassy-rs/embassy#c0e94a70)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/embassy-9312dcb0ed774b29/c0e94a7/embassy-macros/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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 `embassy-macros` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "68358fa83621dbdcc518864d1452ac216cc0830d867a132badad0161c79af818", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68358fa83621dbdcc518864d1452ac216cc0830d867a132badad0161c79af818", kill_on_drop: false }`
[INFO] [stdout] 68358fa83621dbdcc518864d1452ac216cc0830d867a132badad0161c79af818