[INFO] cloning repository https://github.com/RickP/rust_on_stm32f3
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RickP/rust_on_stm32f3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRickP%2Frust_on_stm32f3", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRickP%2Frust_on_stm32f3'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5d757e090e3c270380715c108b1cd97fe442b574
[INFO] checking RickP/rust_on_stm32f3 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRickP%2Frust_on_stm32f3" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RickP/rust_on_stm32f3 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3/source/.cargo/config
[INFO] started tweaking git repo https://github.com/RickP/rust_on_stm32f3
[INFO] finished tweaking git repo https://github.com/RickP/rust_on_stm32f3
[INFO] tweaked toml for git repo https://github.com/RickP/rust_on_stm32f3 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/RickP/rust_on_stm32f3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lsm303dlhc v0.2.0
[INFO] [stderr]   Downloaded embedded-hal v0.2.1
[INFO] [stderr]   Downloaded stm32f30x-hal v0.2.0
[INFO] [stderr]   Downloaded cortex-m-rt v0.5.1
[INFO] [stderr]   Downloaded nb v0.1.1
[INFO] [stderr]   Downloaded f3 v0.6.1
[INFO] [stderr]   Downloaded vcell v0.1.0
[INFO] [stderr]   Downloaded cortex-m-semihosting v0.3.0
[INFO] [stderr]   Downloaded l3gd20 v0.2.0
[INFO] [stderr]   Downloaded aligned v0.2.0
[INFO] [stderr]   Downloaded bare-metal v0.2.0
[INFO] [stderr]   Downloaded cortex-m v0.5.2
[INFO] [stderr]   Downloaded panic-semihosting v0.3.0
[INFO] [stderr]   Downloaded stm32f30x v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d13cb9b237e28b7eaec38c815c18a1b1de0e61fc4b5f63b84a833f62ac94b7e
[INFO] running `Command { std: "docker" "start" "-a" "6d13cb9b237e28b7eaec38c815c18a1b1de0e61fc4b5f63b84a833f62ac94b7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d13cb9b237e28b7eaec38c815c18a1b1de0e61fc4b5f63b84a833f62ac94b7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d13cb9b237e28b7eaec38c815c18a1b1de0e61fc4b5f63b84a833f62ac94b7e", kill_on_drop: false }`
[INFO] [stdout] 6d13cb9b237e28b7eaec38c815c18a1b1de0e61fc4b5f63b84a833f62ac94b7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc98beae684a1328acf71b8fb8579c9e6106b5a44fce039b7e796ce3ebfbd534
[INFO] running `Command { std: "docker" "start" "-a" "fc98beae684a1328acf71b8fb8579c9e6106b5a44fce039b7e796ce3ebfbd534", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]     Checking vcell v0.1.0
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]     Checking nb v0.1.1
[INFO] [stderr]     Checking bare-metal v0.2.0
[INFO] [stderr]     Checking aligned v0.2.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling stm32f30x v0.7.0
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]    Compiling f3 v0.6.1
[INFO] [stderr]    Compiling rust_on_stm32f3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]     Checking embedded-hal v0.2.1
[INFO] [stderr]    Compiling cortex-m v0.5.2
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.0
[INFO] [stderr]    Compiling cortex-m-rt v0.5.1
[INFO] [stderr]     Checking generic-array v0.11.1
[INFO] [stderr]     Checking panic-semihosting v0.3.0
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-semihosting-0.3.0/src/lib.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | #![feature(panic_implementation)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: subsumed by `#[panic_handler]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `panic_implementation` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/panic-semihosting-0.3.0/src/lib.rs:71:3
[INFO] [stdout]    |
[INFO] [stdout] 71 | #[panic_implementation]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `panic-semihosting` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "fc98beae684a1328acf71b8fb8579c9e6106b5a44fce039b7e796ce3ebfbd534", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc98beae684a1328acf71b8fb8579c9e6106b5a44fce039b7e796ce3ebfbd534", kill_on_drop: false }`
[INFO] [stdout] fc98beae684a1328acf71b8fb8579c9e6106b5a44fce039b7e796ce3ebfbd534