[INFO] fetching crate usbd-blaster 0.1.3...
[INFO] checking usbd-blaster-0.1.3 against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] extracting crate usbd-blaster 0.1.3 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate usbd-blaster 0.1.3 on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate usbd-blaster 0.1.3
[INFO] finished tweaking crates.io crate usbd-blaster 0.1.3
[INFO] tweaked toml for crates.io crate usbd-blaster 0.1.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate usbd-blaster 0.1.3 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" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded usb-device v0.2.5
[INFO] [stderr]   Downloaded nb v0.1.2
[INFO] [stderr]   Downloaded arduino_mkrvidor4000 v0.1.0
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.1.8
[INFO] [stderr]   Downloaded cortex-m v0.6.2
[INFO] [stderr]   Downloaded paste-impl v0.1.10
[INFO] [stderr]   Downloaded as-slice v0.1.3
[INFO] [stderr]   Downloaded vcell v0.1.2
[INFO] [stderr]   Downloaded volatile-register v0.2.0
[INFO] [stderr]   Downloaded paste v0.1.10
[INFO] [stderr]   Downloaded aligned v0.3.2
[INFO] [stderr]   Downloaded generic-array v0.13.2
[INFO] [stderr]   Downloaded cortex-m-rt v0.6.12
[INFO] [stderr]   Downloaded atsamd-hal v0.8.2
[INFO] [stderr]   Downloaded atsamd21g18a v0.6.0
[INFO] [stderr]   Downloaded embedded-hal v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 601d4666cc3705789bed200ec1f0610dd32f99434fdf514bf5d8b2d0dc1f5838
[INFO] running `Command { std: "docker" "start" "-a" "601d4666cc3705789bed200ec1f0610dd32f99434fdf514bf5d8b2d0dc1f5838", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "601d4666cc3705789bed200ec1f0610dd32f99434fdf514bf5d8b2d0dc1f5838", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "601d4666cc3705789bed200ec1f0610dd32f99434fdf514bf5d8b2d0dc1f5838", kill_on_drop: false }`
[INFO] [stdout] 601d4666cc3705789bed200ec1f0610dd32f99434fdf514bf5d8b2d0dc1f5838
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35da6864ffae7eed271aa9df389a56a6de22852bfd68f25f7ad37ae2f69a6e69
[INFO] running `Command { std: "docker" "start" "-a" "35da6864ffae7eed271aa9df389a56a6de22852bfd68f25f7ad37ae2f69a6e69", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cortex-m v0.6.2
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling cortex-m-rt v0.6.12
[INFO] [stderr]     Checking vcell v0.1.2
[INFO] [stderr]    Compiling atsamd21g18a v0.6.0
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking nb v0.1.2
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]     Checking usb-device v0.2.5
[INFO] [stderr]    Compiling arduino_mkrvidor4000 v0.1.0
[INFO] [stderr]     Checking embedded-hal v0.2.3
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]     Checking usbd-blaster v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking as-slice v0.1.3
[INFO] [stderr]     Checking aligned v0.3.2
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stderr]    Compiling paste-impl v0.1.10
[INFO] [stderr]     Checking paste v0.1.10
[INFO] [stderr]     Checking atsamd-hal v0.8.2
[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: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `usbd-blaster` (example "arduino_mkrvidor4000") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "35da6864ffae7eed271aa9df389a56a6de22852bfd68f25f7ad37ae2f69a6e69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35da6864ffae7eed271aa9df389a56a6de22852bfd68f25f7ad37ae2f69a6e69", kill_on_drop: false }`
[INFO] [stdout] 35da6864ffae7eed271aa9df389a56a6de22852bfd68f25f7ad37ae2f69a6e69
[INFO] checking usbd-blaster-0.1.3 against try#dae34b759e282c069aa28752564694effd121a63 for pr-125384
[INFO] extracting crate usbd-blaster 0.1.3 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate usbd-blaster 0.1.3 on toolchain dae34b759e282c069aa28752564694effd121a63
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate usbd-blaster 0.1.3
[INFO] finished tweaking crates.io crate usbd-blaster 0.1.3
[INFO] tweaked toml for crates.io crate usbd-blaster 0.1.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate usbd-blaster 0.1.3 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" "+dae34b759e282c069aa28752564694effd121a63" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5627dc04eab1405f27517fa0185997fcbc88ffcbe27551e6535b86f20226db0b
[INFO] running `Command { std: "docker" "start" "-a" "5627dc04eab1405f27517fa0185997fcbc88ffcbe27551e6535b86f20226db0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5627dc04eab1405f27517fa0185997fcbc88ffcbe27551e6535b86f20226db0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5627dc04eab1405f27517fa0185997fcbc88ffcbe27551e6535b86f20226db0b", kill_on_drop: false }`
[INFO] [stdout] 5627dc04eab1405f27517fa0185997fcbc88ffcbe27551e6535b86f20226db0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b269e73c9231b11f710910ea312fcd8eaa72008fdb12fc437f244ea855e1c8c2
[INFO] running `Command { std: "docker" "start" "-a" "b269e73c9231b11f710910ea312fcd8eaa72008fdb12fc437f244ea855e1c8c2", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "b269e73c9231b11f710910ea312fcd8eaa72008fdb12fc437f244ea855e1c8c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b269e73c9231b11f710910ea312fcd8eaa72008fdb12fc437f244ea855e1c8c2", kill_on_drop: false }`
[INFO] [stdout] b269e73c9231b11f710910ea312fcd8eaa72008fdb12fc437f244ea855e1c8c2