[INFO] cloning repository https://github.com/Dhole/gb-rw-stm32f411-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Dhole/gb-rw-stm32f411-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDhole%2Fgb-rw-stm32f411-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDhole%2Fgb-rw-stm32f411-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6c630fcc96cecf534071cc9af275efc05d0fab12
[INFO] documenting Dhole/gb-rw-stm32f411-rs against 1.47.0 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDhole%2Fgb-rw-stm32f411-rs" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Dhole/gb-rw-stm32f411-rs on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5/source/.cargo/config
[INFO] started tweaking git repo https://github.com/Dhole/gb-rw-stm32f411-rs
[INFO] finished tweaking git repo https://github.com/Dhole/gb-rw-stm32f411-rs
[INFO] tweaked toml for git repo https://github.com/Dhole/gb-rw-stm32f411-rs written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Dhole/gb-rw-stm32f411-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 312f838f4710f09b19c35decae2b7d99ac85bbb711e2bc3c6dccdc5d6f9ff92c
[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" "312f838f4710f09b19c35decae2b7d99ac85bbb711e2bc3c6dccdc5d6f9ff92c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "312f838f4710f09b19c35decae2b7d99ac85bbb711e2bc3c6dccdc5d6f9ff92c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "312f838f4710f09b19c35decae2b7d99ac85bbb711e2bc3c6dccdc5d6f9ff92c", kill_on_drop: false }`
[INFO] [stdout] 312f838f4710f09b19c35decae2b7d99ac85bbb711e2bc3c6dccdc5d6f9ff92c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.47.0" "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] 208e7d635bd634c0c23ea4c8904464769209b0d7dfa6c718e0eea7d8c0880bd9
[INFO] running `Command { std: "docker" "start" "-a" "208e7d635bd634c0c23ea4c8904464769209b0d7dfa6c718e0eea7d8c0880bd9", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling heapless v0.5.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.14
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.5
[INFO] [stderr]     Checking panic-semihosting v0.5.3
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stderr]    Compiling paste-impl v0.1.7
[INFO] [stderr]     Checking paste v0.1.7
[INFO] [stderr]     Checking cortex-m-rt v0.6.12
[INFO] [stderr]     Checking stm32f4 v0.10.0
[INFO] [stderr]     Checking postcard v0.4.3
[INFO] [stderr]     Checking urpc v0.1.0-alpha.2
[INFO] [stderr]     Checking stm32f4xx-hal v0.7.0
[INFO] [stderr]  Documenting gb-rw-firm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(trait_alias)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `gb-rw-firm`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name gb_rw_firm 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-fda8bdb0dd351173.rmeta --extern cortex_m_rt=/opt/rustwide/target/debug/deps/libcortex_m_rt-683cda6938c2a10f.rmeta --extern embedded_hal=/opt/rustwide/target/debug/deps/libembedded_hal-ef04bc89b65c90d0.rmeta --extern nb=/opt/rustwide/target/debug/deps/libnb-48d26562a77558e6.rmeta --extern panic_halt=/opt/rustwide/target/debug/deps/libpanic_halt-cf482e4f96cba0d0.rmeta --extern panic_semihosting=/opt/rustwide/target/debug/deps/libpanic_semihosting-c20fc89194702203.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-9cd1b0e958592f3f.rmeta --extern stm32f4=/opt/rustwide/target/debug/deps/libstm32f4-9c1c1d8ac86c97f6.rmeta --extern stm32f4xx_hal=/opt/rustwide/target/debug/deps/libstm32f4xx_hal-d0c5912443c292e4.rmeta --extern urpc=/opt/rustwide/target/debug/deps/liburpc-683f4cbf6cc555f8.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "208e7d635bd634c0c23ea4c8904464769209b0d7dfa6c718e0eea7d8c0880bd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "208e7d635bd634c0c23ea4c8904464769209b0d7dfa6c718e0eea7d8c0880bd9", kill_on_drop: false }`
[INFO] [stdout] 208e7d635bd634c0c23ea4c8904464769209b0d7dfa6c718e0eea7d8c0880bd9
