[INFO] cloning repository https://github.com/Liamolucko/microbit-serial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Liamolucko/microbit-serial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLiamolucko%2Fmicrobit-serial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLiamolucko%2Fmicrobit-serial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 539bb12138a7c38f071f59ace93669033f8810a8
[INFO] documenting Liamolucko/microbit-serial against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLiamolucko%2Fmicrobit-serial" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Liamolucko/microbit-serial on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0/source/.cargo/config
[INFO] started tweaking git repo https://github.com/Liamolucko/microbit-serial
[INFO] finished tweaking git repo https://github.com/Liamolucko/microbit-serial
[INFO] tweaked toml for git repo https://github.com/Liamolucko/microbit-serial written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Liamolucko/microbit-serial already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cortex-m-rtic-macros v0.5.2
[INFO] [stderr]   Downloaded panic-semihosting v0.5.6
[INFO] [stderr]   Downloaded rtic-core v0.3.1
[INFO] [stderr]   Downloaded rtic-syntax v0.4.0
[INFO] [stderr]   Downloaded embedded-hal v0.2.4
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.1.8
[INFO] [stderr]   Downloaded r0 v0.2.2
[INFO] [stderr]   Downloaded cortex-m-rt v0.6.13
[INFO] [stderr]   Downloaded volatile-register v0.2.0
[INFO] [stderr]   Downloaded cortex-m-semihosting v0.3.7
[INFO] [stderr]   Downloaded nrf-hal-common v0.12.1
[INFO] [stderr]   Downloaded cortex-m-rtic v0.5.6
[INFO] [stderr]   Downloaded generic-array v0.13.3
[INFO] [stderr]   Downloaded bitfield v0.13.2
[INFO] [stderr]   Downloaded heapless v0.6.1
[INFO] [stderr]   Downloaded fixed v1.7.0
[INFO] [stderr]   Downloaded az v1.1.1
[INFO] [stderr]   Downloaded syn v1.0.69
[INFO] [stderr]   Downloaded vcell v0.1.3
[INFO] [stderr]   Downloaded aligned v0.3.4
[INFO] [stderr]   Downloaded cortex-m v0.7.2
[INFO] [stderr]   Downloaded cast v0.2.5
[INFO] [stderr]   Downloaded embedded-dma v0.1.2
[INFO] [stderr]   Downloaded as-slice v0.1.5
[INFO] [stderr]   Downloaded cortex-m v0.6.7
[INFO] [stderr]   Downloaded nrf52833-pac v0.9.0
[INFO] [stderr]   Downloaded tiny-led-matrix v1.0.2
[INFO] [stderr]   Downloaded nrf52833-hal v0.12.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a9959745f2d1a1b143260625e4513d74731e993a9183fed4a8a5767c3b427875
[INFO] running `Command { std: "docker" "start" "-a" "a9959745f2d1a1b143260625e4513d74731e993a9183fed4a8a5767c3b427875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9959745f2d1a1b143260625e4513d74731e993a9183fed4a8a5767c3b427875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9959745f2d1a1b143260625e4513d74731e993a9183fed4a8a5767c3b427875", kill_on_drop: false }`
[INFO] [stdout] a9959745f2d1a1b143260625e4513d74731e993a9183fed4a8a5767c3b427875
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cba8de25f384b987ce48a497d482324cab3ed8f9d5284a8788d23a3bde01db13
[INFO] running `Command { std: "docker" "start" "-a" "cba8de25f384b987ce48a497d482324cab3ed8f9d5284a8788d23a3bde01db13", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling cortex-m v0.7.2
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]    Compiling cortex-m-rt v0.6.13
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]    Compiling az v1.1.1
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling nrf52833-pac v0.9.0
[INFO] [stderr]    Compiling fixed v1.7.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.7
[INFO] [stderr]    Compiling heapless v0.6.1
[INFO] [stderr]    Compiling nrf-hal-common v0.12.1
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]    Compiling nrf52833-hal v0.12.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rtic-core v0.3.1
[INFO] [stderr]     Checking tiny-led-matrix v1.0.2
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling cast v0.2.5
[INFO] [stderr]     Checking embedded-dma v0.1.2
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling cortex-m-rtic v0.5.6
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]     Checking embedded-hal v0.2.4
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking panic-semihosting v0.5.6
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stderr]     Checking aligned v0.3.4
[INFO] [stderr]    Compiling rtic-syntax v0.4.0
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stderr]    Compiling cortex-m-rtic-macros v0.5.2
[INFO] [stderr]  Documenting microbit-serial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0583]: file not found for module `timer`
[INFO] [stdout]  --> src/main.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | mod timer;
[INFO] [stdout]   | ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: to create the module `timer`, create file "src/timer.rs" or "src/timer/mod.rs"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0583`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `microbit-serial`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name microbit_serial src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=dd54f5c2a571d3d2 -L dependency=/opt/rustwide/target/debug/deps --extern cortex_m_rt=/opt/rustwide/target/debug/deps/libcortex_m_rt-5195982c1d7ee759.rmeta --extern rtic=/opt/rustwide/target/debug/deps/librtic-b72dcfd962084a3e.rmeta --extern nrf52833_hal=/opt/rustwide/target/debug/deps/libnrf52833_hal-f2dc88e54945f3a9.rmeta --extern panic_semihosting=/opt/rustwide/target/debug/deps/libpanic_semihosting-67a2e862a7afdeef.rmeta --extern tiny_led_matrix=/opt/rustwide/target/debug/deps/libtiny_led_matrix-4d45fbf18cd22fc8.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "cba8de25f384b987ce48a497d482324cab3ed8f9d5284a8788d23a3bde01db13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cba8de25f384b987ce48a497d482324cab3ed8f9d5284a8788d23a3bde01db13", kill_on_drop: false }`
[INFO] [stdout] cba8de25f384b987ce48a497d482324cab3ed8f9d5284a8788d23a3bde01db13