[INFO] cloning repository https://github.com/centosa/stm32-NUCLEO-L496ZG
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/centosa/stm32-NUCLEO-L496ZG" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcentosa%2Fstm32-NUCLEO-L496ZG", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcentosa%2Fstm32-NUCLEO-L496ZG'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5a4c7fb97790b55c089cdd560424ce370fc62c20
[INFO] documenting centosa/stm32-NUCLEO-L496ZG 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%2Fcentosa%2Fstm32-NUCLEO-L496ZG" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/centosa/stm32-NUCLEO-L496ZG 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-27/source/.cargo/config
[INFO] removed /workspace/builds/worker-27/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/centosa/stm32-NUCLEO-L496ZG
[INFO] finished tweaking git repo https://github.com/centosa/stm32-NUCLEO-L496ZG
[INFO] tweaked toml for git repo https://github.com/centosa/stm32-NUCLEO-L496ZG written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/centosa/stm32-NUCLEO-L496ZG 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] warning: the cargo feature `resolver` has been stabilized in the 1.51 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions for more information about using this feature.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded drone-macros-core v0.13.0
[INFO] [stderr]   Downloaded serde-xml-rs v0.4.0
[INFO] [stderr]   Downloaded drone-svd v0.13.0
[INFO] [stderr]   Downloaded drone-core-macros v0.13.0
[INFO] [stderr]   Downloaded drone-ctypes v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map-periph-uart v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map-pieces-10 v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map-periph-spi v0.13.0
[INFO] [stderr]   Downloaded drone-cortexm-macros v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map-periph-exti v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map-pieces-6 v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map-pieces-1 v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map-pieces-12 v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map-pieces-2 v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map-pieces-8 v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map-pieces-11 v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map-periph-dma v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map-periph-gpio v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map-pieces-7 v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map-pieces-9 v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map-pieces-4 v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map-pieces v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map-periph-tim v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map-periph-i2c v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map-periph-rtc v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map-pieces-5 v0.13.0
[INFO] [stderr]   Downloaded drone-config v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map-pieces-3 v0.13.0
[INFO] [stderr]   Downloaded drone-cortexm v0.13.0
[INFO] [stderr]   Downloaded drone-core v0.13.0
[INFO] [stderr]   Downloaded drone-stm32-map-svd v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 0be5f4941ec69763ba7d045e8e55364e0c283f30c5be71d31321e570923ce51b
[INFO] running `Command { std: "docker" "start" "-a" "0be5f4941ec69763ba7d045e8e55364e0c283f30c5be71d31321e570923ce51b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0be5f4941ec69763ba7d045e8e55364e0c283f30c5be71d31321e570923ce51b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0be5f4941ec69763ba7d045e8e55364e0c283f30c5be71d31321e570923ce51b", kill_on_drop: false }`
[INFO] [stdout] 0be5f4941ec69763ba7d045e8e55364e0c283f30c5be71d31321e570923ce51b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] [stdout] ef6b66928f913311d8953ea03b7f5f665cc1745585f7a53f7e5e1c9eeba24bf4
[INFO] running `Command { std: "docker" "start" "-a" "ef6b66928f913311d8953ea03b7f5f665cc1745585f7a53f7e5e1c9eeba24bf4", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `resolver` has been stabilized in the 1.51 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions for more information about using this feature.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]     Checking futures-sink v0.3.8
[INFO] [stderr]     Checking futures-task v0.3.8
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling if_chain v1.0.1
[INFO] [stderr]     Checking futures-io v0.3.8
[INFO] [stderr]     Checking drone-ctypes v0.13.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/drone-ctypes-0.13.0/src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(unsafe_block_in_unsafe_fn)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `unsafe_block_in_unsafe_fn` has been stable since 1.52.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `drone-ctypes` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ef6b66928f913311d8953ea03b7f5f665cc1745585f7a53f7e5e1c9eeba24bf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef6b66928f913311d8953ea03b7f5f665cc1745585f7a53f7e5e1c9eeba24bf4", kill_on_drop: false }`
[INFO] [stdout] ef6b66928f913311d8953ea03b7f5f665cc1745585f7a53f7e5e1c9eeba24bf4