[INFO] fetching crate arduino_mkrzero 0.12.2...
[INFO] checking arduino_mkrzero-0.12.2 against master#39cb3386ddc6c71657418be28dbb3987eea4aa4b for pr-133536
[INFO] extracting crate arduino_mkrzero 0.12.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate arduino_mkrzero 0.12.2 on toolchain 39cb3386ddc6c71657418be28dbb3987eea4aa4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate arduino_mkrzero 0.12.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate arduino_mkrzero 0.12.2
[INFO] tweaked toml for crates.io crate arduino_mkrzero 0.12.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate arduino_mkrzero 0.12.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded volatile-register v0.2.2
[INFO] [stderr]   Downloaded usbd-serial v0.1.1
[INFO] [stderr]   Downloaded panic-semihosting v0.5.6
[INFO] [stderr]   Downloaded cortex-m-rtic-macros v1.1.6
[INFO] [stderr]   Downloaded gcd v2.3.0
[INFO] [stderr]   Downloaded rtic-syntax v1.0.3
[INFO] [stderr]   Downloaded modular-bitfield v0.11.2
[INFO] [stderr]   Downloaded proc-macro2 v1.0.88
[INFO] [stderr]   Downloaded rtic-core v1.0.0
[INFO] [stderr]   Downloaded embedded-sdmmc v0.3.0
[INFO] [stderr]   Downloaded cortex-m-rtic v1.1.4
[INFO] [stderr]   Downloaded usb-device v0.2.9
[INFO] [stderr]   Downloaded modular-bitfield-impl v0.11.2
[INFO] [stderr]   Downloaded rtic-monotonic v1.0.0
[INFO] [stderr]   Downloaded cortex-m-semihosting v0.3.7
[INFO] [stderr]   Downloaded atsamd21g v0.12.0
[INFO] [stderr]   Downloaded atsamd-hal v0.16.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33ff991b023ca0fc3ff6fbad9261dbd14bdb33b626298ea69a6e42d4c57d7980
[INFO] running `Command { std: "docker" "start" "-a" "33ff991b023ca0fc3ff6fbad9261dbd14bdb33b626298ea69a6e42d4c57d7980", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33ff991b023ca0fc3ff6fbad9261dbd14bdb33b626298ea69a6e42d4c57d7980", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33ff991b023ca0fc3ff6fbad9261dbd14bdb33b626298ea69a6e42d4c57d7980", kill_on_drop: false }`
[INFO] [stdout] 33ff991b023ca0fc3ff6fbad9261dbd14bdb33b626298ea69a6e42d4c57d7980
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6a1939ebecfd45dde6d61ff07200d67b6dffb2d45cdabfe203ceb24b16ad1c9
[INFO] running `Command { std: "docker" "start" "-a" "c6a1939ebecfd45dde6d61ff07200d67b6dffb2d45cdabfe203ceb24b16ad1c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.88
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking volatile-register v0.2.2
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling atsamd21g v0.12.0
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]     Checking usb-device v0.2.9
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.7
[INFO] [stderr]     Checking cpufeatures v0.2.14
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking gcd v2.3.0
[INFO] [stderr]    Compiling cortex-m-rtic v1.1.4
[INFO] [stderr]     Checking fugit v0.3.7
[INFO] [stderr]     Checking cortex-m v0.7.7
[INFO] [stderr]    Compiling seq-macro v0.3.5
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]    Compiling arduino_mkrzero v0.12.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rtic-monotonic v1.0.0
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]     Checking rtic-core v1.0.0
[INFO] [stderr]     Checking usbd-serial v0.1.1
[INFO] [stderr]     Checking panic-semihosting v0.5.6
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking aes v0.7.5
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling rtic-syntax v1.0.3
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]    Compiling modular-bitfield-impl v0.11.2
[INFO] [stderr]    Compiling cortex-m-rtic-macros v1.1.6
[INFO] [stderr]     Checking cortex-m-rt v0.7.3
[INFO] [stderr]     Checking modular-bitfield v0.11.2
[INFO] [stderr]     Checking atsamd-hal v0.16.0
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `arduino_mkrzero` (example "blinky_basic") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `arduino_mkrzero` (example "usb_logging") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "c6a1939ebecfd45dde6d61ff07200d67b6dffb2d45cdabfe203ceb24b16ad1c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6a1939ebecfd45dde6d61ff07200d67b6dffb2d45cdabfe203ceb24b16ad1c9", kill_on_drop: false }`
[INFO] [stdout] c6a1939ebecfd45dde6d61ff07200d67b6dffb2d45cdabfe203ceb24b16ad1c9
