[INFO] fetching crate grand_central_m4 0.3.0...
[INFO] checking grand_central_m4-0.3.0 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate grand_central_m4 0.3.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate grand_central_m4 0.3.0 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-10/source/.cargo/config
[INFO] started tweaking crates.io crate grand_central_m4 0.3.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate grand_central_m4 0.3.0
[INFO] tweaked toml for crates.io crate grand_central_m4 0.3.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate grand_central_m4 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3194a0d9a592cfbd396a3561737e917bd88bfd1c2baa219863d2b8d66ef1deb8
[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" "3194a0d9a592cfbd396a3561737e917bd88bfd1c2baa219863d2b8d66ef1deb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3194a0d9a592cfbd396a3561737e917bd88bfd1c2baa219863d2b8d66ef1deb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3194a0d9a592cfbd396a3561737e917bd88bfd1c2baa219863d2b8d66ef1deb8", kill_on_drop: false }`
[INFO] [stdout] 3194a0d9a592cfbd396a3561737e917bd88bfd1c2baa219863d2b8d66ef1deb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b70a0bf4013a4704abdcd0f1dadd86e9656717318371a3804326d7aa1cd15d7
[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" "0b70a0bf4013a4704abdcd0f1dadd86e9656717318371a3804326d7aa1cd15d7", kill_on_drop: false }`
[INFO] [stderr]     Checking bytemuck v1.4.1
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling atsamd51p v0.9.0
[INFO] [stderr]    Compiling grand_central_m4 v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking cortex-m v0.6.4
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.4
[INFO] [stderr]     Checking rgb v0.8.25
[INFO] [stderr]     Checking cortex-m-semihosting v0.3.7
[INFO] [stderr]     Checking cortex-m v0.5.10
[INFO] [stderr]     Checking cortex-m-rtic v0.5.5
[INFO] [stderr]     Checking panic-semihosting v0.5.6
[INFO] [stderr]     Checking panic_rtt v0.2.0
[INFO] [stderr]     Checking smart-leds-trait v0.2.1
[INFO] [stderr]     Checking ws2812-timer-delay v0.3.0
[INFO] [stderr]     Checking smart-leds v0.3.0
[INFO] [stderr]     Checking atsamd-hal v0.12.0
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `grand_central_m4`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "0b70a0bf4013a4704abdcd0f1dadd86e9656717318371a3804326d7aa1cd15d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b70a0bf4013a4704abdcd0f1dadd86e9656717318371a3804326d7aa1cd15d7", kill_on_drop: false }`
[INFO] [stdout] 0b70a0bf4013a4704abdcd0f1dadd86e9656717318371a3804326d7aa1cd15d7