[INFO] fetching crate stm32f0xx 0.3.0...
[INFO] testing stm32f0xx-0.3.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate stm32f0xx 0.3.0 into /workspace/builds/worker-51/source
[INFO] validating manifest of crates.io crate stm32f0xx 0.3.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stm32f0xx 0.3.0
[INFO] finished tweaking crates.io crate stm32f0xx 0.3.0
[INFO] tweaked toml for crates.io crate stm32f0xx 0.3.0 written to /workspace/builds/worker-51/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--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-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a6a2efaa1b328920e48b5a2eab84d6f4ce4bd2d961f227aad05b7d320b03da6
[INFO] running `Command { std: "docker" "start" "-a" "6a6a2efaa1b328920e48b5a2eab84d6f4ce4bd2d961f227aad05b7d320b03da6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a6a2efaa1b328920e48b5a2eab84d6f4ce4bd2d961f227aad05b7d320b03da6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a6a2efaa1b328920e48b5a2eab84d6f4ce4bd2d961f227aad05b7d320b03da6", kill_on_drop: false }`
[INFO] [stdout] 6a6a2efaa1b328920e48b5a2eab84d6f4ce4bd2d961f227aad05b7d320b03da6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7f197dbdc6eca9dcad362b6e01f3f5dab9c3a11e0c3fb58b45ab21409a9e212
[INFO] running `Command { std: "docker" "start" "-a" "c7f197dbdc6eca9dcad362b6e01f3f5dab9c3a11e0c3fb58b45ab21409a9e212", kill_on_drop: false }`
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling cortex-m v0.2.12
[INFO] [stderr]    Compiling aligned v0.1.2
[INFO] [stderr]    Compiling cortex-m-semihosting v0.1.3
[INFO] [stderr]    Compiling volatile-register v0.2.1
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/aligned-0.1.2/src/lib.rs:32:43
[INFO] [stdout]    |
[INFO] [stdout] 32 | #![cfg_attr(feature = "const-fn", feature(const_fn))]
[INFO] [stdout]    |                                           ^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: split into finer-grained feature gates
[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 E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aligned` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c7f197dbdc6eca9dcad362b6e01f3f5dab9c3a11e0c3fb58b45ab21409a9e212", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7f197dbdc6eca9dcad362b6e01f3f5dab9c3a11e0c3fb58b45ab21409a9e212", kill_on_drop: false }`
[INFO] [stdout] c7f197dbdc6eca9dcad362b6e01f3f5dab9c3a11e0c3fb58b45ab21409a9e212