[INFO] cloning repository https://github.com/nebelgrau77/STM32_DS1307_clock
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nebelgrau77/STM32_DS1307_clock" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnebelgrau77%2FSTM32_DS1307_clock", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnebelgrau77%2FSTM32_DS1307_clock'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3c2901a5b37f06484cd7c58192c3f0d8c0772c83
[INFO] documenting nebelgrau77/STM32_DS1307_clock against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnebelgrau77%2FSTM32_DS1307_clock" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nebelgrau77/STM32_DS1307_clock on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3/source/.cargo/config
[INFO] started tweaking git repo https://github.com/nebelgrau77/STM32_DS1307_clock
[INFO] finished tweaking git repo https://github.com/nebelgrau77/STM32_DS1307_clock
[INFO] tweaked toml for git repo https://github.com/nebelgrau77/STM32_DS1307_clock written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/nebelgrau77/STM32_DS1307_clock already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-3/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 620abe29ce7f1fa6face08c4eadb85af6925e0fe74d6e5a58d52629c2c21bf07
[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" "620abe29ce7f1fa6face08c4eadb85af6925e0fe74d6e5a58d52629c2c21bf07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "620abe29ce7f1fa6face08c4eadb85af6925e0fe74d6e5a58d52629c2c21bf07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "620abe29ce7f1fa6face08c4eadb85af6925e0fe74d6e5a58d52629c2c21bf07", kill_on_drop: false }`
[INFO] [stdout] 620abe29ce7f1fa6face08c4eadb85af6925e0fe74d6e5a58d52629c2c21bf07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae109c2c9a68e1702247b96d877ba6571951dce191b9e435279b5160728de21a
[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" "ae109c2c9a68e1702247b96d877ba6571951dce191b9e435279b5160728de21a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cortex-m v0.6.3
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling cortex-m-rt v0.6.12
[INFO] [stderr]    Compiling stm32f0 v0.8.0
[INFO] [stderr]    Compiling cortex-m v0.5.10
[INFO] [stderr]    Compiling ssd1306 v0.3.1
[INFO] [stderr]     Checking aligned v0.2.0
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]     Checking ds1307 v0.2.1
[INFO] [stderr]     Checking shared-bus v0.1.4
[INFO] [stderr]     Checking embedded-graphics v0.6.2
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stderr]     Checking stm32f0xx-hal v0.15.2
[INFO] [stderr]  Documenting clock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `cortex_m_semihosting`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use cortex_m_semihosting::hprintln;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^ use of undeclared type or module `cortex_m_semihosting`
[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 E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `clock`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name clock src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern arrayvec=/opt/rustwide/target/debug/deps/libarrayvec-9af35c631f7dd88f.rmeta --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-041cc3e8101fe1f1.rmeta --extern cortex_m_rt=/opt/rustwide/target/debug/deps/libcortex_m_rt-dcd0ccebb7178cfe.rmeta --extern ds1307=/opt/rustwide/target/debug/deps/libds1307-8708f63f4ade7a60.rmeta --extern embedded_graphics=/opt/rustwide/target/debug/deps/libembedded_graphics-e0984d7d472d2b65.rmeta --extern embedded_hal=/opt/rustwide/target/debug/deps/libembedded_hal-896746e6e9cd6767.rmeta --extern panic_halt=/opt/rustwide/target/debug/deps/libpanic_halt-b597cb793434f3ed.rmeta --extern shared_bus=/opt/rustwide/target/debug/deps/libshared_bus-a98d9a20ac3f8cfb.rmeta --extern ssd1306=/opt/rustwide/target/debug/deps/libssd1306-aaa40a347bd1764c.rmeta --extern stm32f0xx_hal=/opt/rustwide/target/debug/deps/libstm32f0xx_hal-6270f402bba6bf95.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "ae109c2c9a68e1702247b96d877ba6571951dce191b9e435279b5160728de21a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae109c2c9a68e1702247b96d877ba6571951dce191b9e435279b5160728de21a", kill_on_drop: false }`
[INFO] [stdout] ae109c2c9a68e1702247b96d877ba6571951dce191b9e435279b5160728de21a