[INFO] fetching crate stm32f1xx-hal 0.6.1...
[INFO] documenting stm32f1xx-hal-0.6.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate stm32f1xx-hal 0.6.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate stm32f1xx-hal 0.6.1 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2/source/.cargo/config
[INFO] started tweaking crates.io crate stm32f1xx-hal 0.6.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate stm32f1xx-hal 0.6.1
[INFO] tweaked toml for crates.io crate stm32f1xx-hal 0.6.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate stm32f1xx-hal 0.6.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cobs v0.1.4
[INFO] [stderr]   Downloaded stm32f1 v0.11.0
[INFO] [stderr]   Downloaded mfrc522 v0.2.0
[INFO] [stderr]   Downloaded m v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 161b83be20cacb8ad3da89227092081cc9c2bebc6c7f79744932762417770f60
[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" "161b83be20cacb8ad3da89227092081cc9c2bebc6c7f79744932762417770f60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "161b83be20cacb8ad3da89227092081cc9c2bebc6c7f79744932762417770f60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "161b83be20cacb8ad3da89227092081cc9c2bebc6c7f79744932762417770f60", kill_on_drop: false }`
[INFO] [stdout] 161b83be20cacb8ad3da89227092081cc9c2bebc6c7f79744932762417770f60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef686497dbac0daa0e382988a06e5589fc0b1c5cbc8d1a84721d7b3643c3bf45
[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" "ef686497dbac0daa0e382988a06e5589fc0b1c5cbc8d1a84721d7b3643c3bf45", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking vcell v0.1.2
[INFO] [stderr]    Compiling cortex-m-rt v0.6.11
[INFO] [stderr]    Compiling stm32f1 v0.11.0
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking nb v0.1.2
[INFO] [stderr]    Compiling cortex-m v0.6.1
[INFO] [stderr]     Checking typenum v1.11.2
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking bare-metal v0.2.5
[INFO] [stderr]     Checking embedded-hal v0.2.3
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking as-slice v0.1.2
[INFO] [stderr]     Checking aligned v0.3.2
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.7
[INFO] [stderr]  Documenting stm32f1xx-hal v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: Target not found. A `--features <target-name>` is required.
[INFO] [stdout]   --> src/lib.rs:97:1
[INFO] [stdout]    |
[INFO] [stdout] 97 | compile_error!("Target not found. A `--features <target-name>` is required.");
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] [stderr] error: Could not document `stm32f1xx-hal`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name stm32f1xx_hal src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern as_slice=/opt/rustwide/target/debug/deps/libas_slice-8ffd3914f0c4c737.rmeta --extern cast=/opt/rustwide/target/debug/deps/libcast-962cef463b2c7b67.rmeta --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-99048ea07008b7d7.rmeta --extern cortex_m_rt=/opt/rustwide/target/debug/deps/libcortex_m_rt-9a0616044123c591.rmeta --extern embedded_hal=/opt/rustwide/target/debug/deps/libembedded_hal-d5ac90901e5b0917.rmeta --extern nb=/opt/rustwide/target/debug/deps/libnb-6a5ca2cfe4e95dc0.rmeta --extern stm32f1=/opt/rustwide/target/debug/deps/libstm32f1-5ca9c0f4e487f797.rmeta --extern void=/opt/rustwide/target/debug/deps/libvoid-b6158276f092634f.rmeta --cap-lints=warn --crate-version 0.6.1` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "ef686497dbac0daa0e382988a06e5589fc0b1c5cbc8d1a84721d7b3643c3bf45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef686497dbac0daa0e382988a06e5589fc0b1c5cbc8d1a84721d7b3643c3bf45", kill_on_drop: false }`
[INFO] [stdout] ef686497dbac0daa0e382988a06e5589fc0b1c5cbc8d1a84721d7b3643c3bf45