[INFO] fetching crate ruspiro-uart 0.3.1...
[INFO] checking ruspiro-uart-0.3.1 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate ruspiro-uart 0.3.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate ruspiro-uart 0.3.1 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ruspiro-uart 0.3.1
[INFO] finished tweaking crates.io crate ruspiro-uart 0.3.1
[INFO] tweaked toml for crates.io crate ruspiro-uart 0.3.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "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] 9b9ad214258f26a8b85317dad7b732d713a6c4b84ea73d42a9e7d5bd115c6680
[INFO] running `Command { std: "docker" "start" "-a" "9b9ad214258f26a8b85317dad7b732d713a6c4b84ea73d42a9e7d5bd115c6680", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b9ad214258f26a8b85317dad7b732d713a6c4b84ea73d42a9e7d5bd115c6680", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b9ad214258f26a8b85317dad7b732d713a6c4b84ea73d42a9e7d5bd115c6680", kill_on_drop: false }`
[INFO] [stdout] 9b9ad214258f26a8b85317dad7b732d713a6c4b84ea73d42a9e7d5bd115c6680
[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" "RUSTFLAGS=--cap-lints=forbid" "-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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc824d4e969c14df4b7093d589389e2c1800a54525926b77c70711a1f8566f18
[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" "fc824d4e969c14df4b7093d589389e2c1800a54525926b77c70711a1f8566f18", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking ruspiro-lock v0.3.3
[INFO] [stderr]     Checking ruspiro-register v0.4.3
[INFO] [stderr]     Checking ruspiro-interrupt-core v0.3.1
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking ruspiro-singleton v0.3.1
[INFO] [stderr]     Checking ruspiro-console v0.3.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling ruspiro-interrupt-macros v0.2.1
[INFO] [stderr]     Checking ruspiro-interrupt v0.3.1
[INFO] [stderr]     Checking ruspiro-gpio v0.4.1
[INFO] [stderr]     Checking ruspiro-timer v0.4.1
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ruspiro-gpio-0.4.1/src/lib.rs:9:32
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(llvm_asm, const_fn, const_in_array_repeat_expressions)]
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed due to causing promotable bugs
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] implement handler for IRQ: "SystemTimer1"
[INFO] [stdout] implement handler for IRQ: "GpioBank0"
[INFO] [stdout] implement handler for IRQ: "GpioBank1"
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ruspiro-gpio`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "fc824d4e969c14df4b7093d589389e2c1800a54525926b77c70711a1f8566f18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc824d4e969c14df4b7093d589389e2c1800a54525926b77c70711a1f8566f18", kill_on_drop: false }`
[INFO] [stdout] fc824d4e969c14df4b7093d589389e2c1800a54525926b77c70711a1f8566f18