[INFO] cloning repository https://github.com/mccolljr/seeduino_xiao_m0_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mccolljr/seeduino_xiao_m0_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmccolljr%2Fseeduino_xiao_m0_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmccolljr%2Fseeduino_xiao_m0_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e9e65b42efaa6998393319654be0b6bc8ee2ab46
[INFO] documenting mccolljr/seeduino_xiao_m0_rust against 1.99.0-beta.8 for beta-rustdoc-1.100-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmccolljr%2Fseeduino_xiao_m0_rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-tc1/source/.cargo/config
[INFO] removed /workspace/builds/worker-3-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/mccolljr/seeduino_xiao_m0_rust
[INFO] finished tweaking git repo https://github.com/mccolljr/seeduino_xiao_m0_rust
[INFO] tweaked toml for git repo https://github.com/mccolljr/seeduino_xiao_m0_rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mccolljr/seeduino_xiao_m0_rust on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mccolljr/seeduino_xiao_m0_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-ident v1.0.3
[INFO] [stderr]   Downloaded usb-device v0.2.9
[INFO] [stderr]   Downloaded paste v1.0.8
[INFO] [stderr]   Downloaded proc-macro2 v1.0.43
[INFO] [stderr]   Downloaded usbd-serial v0.1.1
[INFO] [stderr]   Downloaded cortex-m v0.7.6
[INFO] [stderr]   Downloaded syn v1.0.99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 158cb90642b983ab0ac871ec861c0ea8b274362c427506d9f7f49c5fde157433
[INFO] running `Command { std: "docker" "start" "158cb90642b983ab0ac871ec861c0ea8b274362c427506d9f7f49c5fde157433", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "158cb90642b983ab0ac871ec861c0ea8b274362c427506d9f7f49c5fde157433", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "158cb90642b983ab0ac871ec861c0ea8b274362c427506d9f7f49c5fde157433" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "158cb90642b983ab0ac871ec861c0ea8b274362c427506d9f7f49c5fde157433", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "158cb90642b983ab0ac871ec861c0ea8b274362c427506d9f7f49c5fde157433" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling cortex-m v0.7.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking usb-device v0.2.9
[INFO] [stderr]    Compiling paste v1.0.8
[INFO] [stderr]    Compiling atsamd21g v0.11.0
[INFO] [stderr]     Checking usbd-serial v0.1.1
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]    Compiling modular-bitfield-impl v0.11.2
[INFO] [stderr]     Checking cortex-m-rt v0.7.1
[INFO] [stderr]     Checking modular-bitfield v0.11.2
[INFO] [stderr]     Checking atsamd-hal v0.14.0
[INFO] [stderr]     Checking xiao_m0 v0.12.0
[INFO] [stderr]  Documenting seeeduino_xiao_m0 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.42s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: atsamd-hal v0.14.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 6`
[INFO] [stderr]    Generated /opt/rustwide/target/doc/seeeduino_xiao_m0/index.html
[INFO] running `Command { std: "docker" "inspect" "158cb90642b983ab0ac871ec861c0ea8b274362c427506d9f7f49c5fde157433", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "158cb90642b983ab0ac871ec861c0ea8b274362c427506d9f7f49c5fde157433", kill_on_drop: false }`
[INFO] [stdout] 158cb90642b983ab0ac871ec861c0ea8b274362c427506d9f7f49c5fde157433