[INFO] cloning repository https://github.com/frogshead/blue-pill-ds1820-temp-sensor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/frogshead/blue-pill-ds1820-temp-sensor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrogshead%2Fblue-pill-ds1820-temp-sensor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrogshead%2Fblue-pill-ds1820-temp-sensor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6ad2f49dbf7538842d7db1f9e7192d0d8a3b0c0a
[INFO] documenting frogshead/blue-pill-ds1820-temp-sensor 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%2Ffrogshead%2Fblue-pill-ds1820-temp-sensor" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/frogshead/blue-pill-ds1820-temp-sensor 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-13/source/.cargo/config
[INFO] started tweaking git repo https://github.com/frogshead/blue-pill-ds1820-temp-sensor
[INFO] finished tweaking git repo https://github.com/frogshead/blue-pill-ds1820-temp-sensor
[INFO] tweaked toml for git repo https://github.com/frogshead/blue-pill-ds1820-temp-sensor written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/frogshead/blue-pill-ds1820-temp-sensor 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]  Downloading crates ...
[INFO] [stderr]   Downloaded heapless v0.4.2
[INFO] [stderr]   Downloaded enc28j60 v0.2.1
[INFO] [stderr]   Downloaded m v0.1.1
[INFO] [stderr]   Downloaded onewire v0.3.10
[INFO] [stderr]   Downloaded panic-itm v0.4.0
[INFO] [stderr]   Downloaded mfrc522 v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] b8f2faf66d364f2e21beb23c6bd95b74987dd44f0074fb922dd000da3b656d16
[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" "b8f2faf66d364f2e21beb23c6bd95b74987dd44f0074fb922dd000da3b656d16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8f2faf66d364f2e21beb23c6bd95b74987dd44f0074fb922dd000da3b656d16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8f2faf66d364f2e21beb23c6bd95b74987dd44f0074fb922dd000da3b656d16", kill_on_drop: false }`
[INFO] [stdout] b8f2faf66d364f2e21beb23c6bd95b74987dd44f0074fb922dd000da3b656d16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 73a4635e3e034cc498597c0bdb62ed514c3223fb678915b7a5c102f5464cf447
[INFO] running `Command { std: "docker" "start" "-a" "73a4635e3e034cc498597c0bdb62ed514c3223fb678915b7a5c102f5464cf447", 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]    Compiling cortex-m v0.5.8
[INFO] [stderr]     Checking vcell v0.1.0
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking aligned v0.2.0
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]     Checking nb v0.1.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling cortex-m-rt v0.6.7
[INFO] [stderr]    Compiling stm32f1 v0.6.0
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.2
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]     Checking m v0.1.1
[INFO] [stderr]     Checking typenum v1.10.0
[INFO] [stderr]    Compiling bare-metal v0.2.4
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]     Checking embedded-hal v0.2.2
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]     Checking hash32 v0.1.0
[INFO] [stderr]     Checking enc28j60 v0.2.1
[INFO] [stderr]     Checking onewire v0.3.10
[INFO] [stderr]     Checking generic-array v0.11.1
[INFO] [stderr]     Checking panic-itm v0.4.0
[INFO] [stderr]     Checking mfrc522 v0.2.0
[INFO] [stderr]     Checking heapless v0.4.2
[INFO] [stderr]     Checking panic-semihosting v0.5.1
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.88
[INFO] [stderr]     Checking stm32f1xx-hal v0.2.0
[INFO] [stderr]  Documenting ds1820 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: duplicate lang item in crate `panic_itm`: `panic_impl`.
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `panic_semihosting` (which `ds1820` depends on)
[INFO] [stdout]   = note: first definition in `panic_semihosting` loaded from /opt/rustwide/target/debug/deps/libpanic_semihosting-ca7c59f2caadeb89.rmeta
[INFO] [stdout]   = note: second definition in `panic_itm` loaded from /opt/rustwide/target/debug/deps/libpanic_itm-4a665a01c205915a.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `ds1820`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name ds1820 src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=5489402f64a510a0 -L dependency=/opt/rustwide/target/debug/deps --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-7657306ac40353f7.rmeta --extern cortex_m_rt=/opt/rustwide/target/debug/deps/libcortex_m_rt-872b5678431d50e1.rmeta --extern cortex_m_semihosting=/opt/rustwide/target/debug/deps/libcortex_m_semihosting-4aa727e7e8e9f803.rmeta --extern enc28j60=/opt/rustwide/target/debug/deps/libenc28j60-b6bde5892bd20f5d.rmeta --extern heapless=/opt/rustwide/target/debug/deps/libheapless-5cef4f3c2da0e6cc.rmeta --extern m=/opt/rustwide/target/debug/deps/libm-89e65f193c2d1120.rmeta --extern mfrc522=/opt/rustwide/target/debug/deps/libmfrc522-87369e7ce145d37c.rmeta --extern nb=/opt/rustwide/target/debug/deps/libnb-02855c45b698b0d0.rmeta --extern onewire=/opt/rustwide/target/debug/deps/libonewire-526cacedab5d3ba0.rmeta --extern panic_itm=/opt/rustwide/target/debug/deps/libpanic_itm-4a665a01c205915a.rmeta --extern panic_semihosting=/opt/rustwide/target/debug/deps/libpanic_semihosting-ca7c59f2caadeb89.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-11ed124766743b6d.so --extern stm32f1xx_hal=/opt/rustwide/target/debug/deps/libstm32f1xx_hal-6efa0bf296c96a9a.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "73a4635e3e034cc498597c0bdb62ed514c3223fb678915b7a5c102f5464cf447", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73a4635e3e034cc498597c0bdb62ed514c3223fb678915b7a5c102f5464cf447", kill_on_drop: false }`
[INFO] [stdout] 73a4635e3e034cc498597c0bdb62ed514c3223fb678915b7a5c102f5464cf447