[INFO] cloning repository https://github.com/whbeers/moisture-preempt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/whbeers/moisture-preempt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhbeers%2Fmoisture-preempt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhbeers%2Fmoisture-preempt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 718fdcbee543c02a287a3b691e3132a298aa4589
[INFO] documenting whbeers/moisture-preempt against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhbeers%2Fmoisture-preempt" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/whbeers/moisture-preempt 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-9/source/.cargo/config
[INFO] started tweaking git repo https://github.com/whbeers/moisture-preempt
[INFO] finished tweaking git repo https://github.com/whbeers/moisture-preempt
[INFO] tweaked toml for git repo https://github.com/whbeers/moisture-preempt written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/whbeers/moisture-preempt 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stm32f1xx-hal v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0884120e5bc1a1c990d50e0b395a1ce2a8046a69d8497dc2cbf8ebf89f63ce20
[INFO] running `Command { std: "docker" "start" "-a" "0884120e5bc1a1c990d50e0b395a1ce2a8046a69d8497dc2cbf8ebf89f63ce20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0884120e5bc1a1c990d50e0b395a1ce2a8046a69d8497dc2cbf8ebf89f63ce20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0884120e5bc1a1c990d50e0b395a1ce2a8046a69d8497dc2cbf8ebf89f63ce20", kill_on_drop: false }`
[INFO] [stdout] 0884120e5bc1a1c990d50e0b395a1ce2a8046a69d8497dc2cbf8ebf89f63ce20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] a1fe30be89f21da45abafe9b7d72b647161ba6d6dfab228c90e786b173e28860
[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" "a1fe30be89f21da45abafe9b7d72b647161ba6d6dfab228c90e786b173e28860", 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]     Blocking waiting for file lock on package cache
[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 v0.6.2
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking vcell v0.1.2
[INFO] [stderr]    Compiling cortex-m-rt v0.6.12
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.5
[INFO] [stderr]    Compiling stm32f1 v0.11.0
[INFO] [stderr]     Checking nb v0.1.2
[INFO] [stderr]     Checking rtic-core v0.3.0
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]    Compiling cortex-m-rtic v0.5.3
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking as-slice v0.1.3
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]     Checking embedded-hal v0.2.3
[INFO] [stderr]     Checking aligned v0.3.2
[INFO] [stderr]     Checking heapless v0.5.5
[INFO] [stderr]     Checking panic-semihosting v0.5.3
[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 v0.5.0
[INFO] [stderr]     Checking stm32f1xx-hal v0.6.0
[INFO] [stderr]  Documenting moisture-preempt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: duplicate lang item in crate `panic_halt` (which `moisture_preempt` depends on): `panic_impl`.
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `panic_semihosting` (which `moisture_preempt` depends on)
[INFO] [stdout]   = note: first definition in `panic_semihosting` loaded from /opt/rustwide/target/debug/deps/libpanic_semihosting-ba7db71e1f4beb4b.rmeta
[INFO] [stdout]   = note: second definition in `panic_halt` loaded from /opt/rustwide/target/debug/deps/libpanic_halt-e898de5af9d9d9bd.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `moisture-preempt`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name moisture_preempt 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 cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-4bfbeef0cf2a529b.rmeta --extern cortex_m_rt=/opt/rustwide/target/debug/deps/libcortex_m_rt-23a77f0b65d59cc4.rmeta --extern rtic=/opt/rustwide/target/debug/deps/librtic-7dddc2085e11e8d5.rmeta --extern cortex_m_semihosting=/opt/rustwide/target/debug/deps/libcortex_m_semihosting-2050480ded877d5c.rmeta --extern embedded_hal=/opt/rustwide/target/debug/deps/libembedded_hal-0c3dc2b0b47eb1dd.rmeta --extern panic_halt=/opt/rustwide/target/debug/deps/libpanic_halt-e898de5af9d9d9bd.rmeta --extern panic_semihosting=/opt/rustwide/target/debug/deps/libpanic_semihosting-ba7db71e1f4beb4b.rmeta --extern stm32f1=/opt/rustwide/target/debug/deps/libstm32f1-7b684a8c02b674c6.rmeta --extern stm32f1xx_hal=/opt/rustwide/target/debug/deps/libstm32f1xx_hal-5e98bd7d47eff45e.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "a1fe30be89f21da45abafe9b7d72b647161ba6d6dfab228c90e786b173e28860", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1fe30be89f21da45abafe9b7d72b647161ba6d6dfab228c90e786b173e28860", kill_on_drop: false }`
[INFO] [stdout] a1fe30be89f21da45abafe9b7d72b647161ba6d6dfab228c90e786b173e28860