[INFO] fetching crate feather-f405 0.2.0...
[INFO] checking feather-f405-0.2.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate feather-f405 0.2.0 into /workspace/builds/worker-3-tc2/source
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config
[INFO] started tweaking crates.io crate feather-f405 0.2.0
[INFO] finished tweaking crates.io crate feather-f405 0.2.0
[INFO] tweaked toml for crates.io crate feather-f405 0.2.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate feather-f405 0.2.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate feather-f405 0.2.0 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d2cc188ff3e19a8e0a6538e1492f3f98d1114c2f4c42168a156b6783e7a10652
[INFO] running `Command { std: "docker" "start" "-a" "d2cc188ff3e19a8e0a6538e1492f3f98d1114c2f4c42168a156b6783e7a10652", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2cc188ff3e19a8e0a6538e1492f3f98d1114c2f4c42168a156b6783e7a10652", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2cc188ff3e19a8e0a6538e1492f3f98d1114c2f4c42168a156b6783e7a10652", kill_on_drop: false }`
[INFO] [stdout] d2cc188ff3e19a8e0a6538e1492f3f98d1114c2f4c42168a156b6783e7a10652
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0d8c4ed5c85ccf8baae09b57fb4405ca6d325025075fcc050a86f5a6aea36b6
[INFO] running `Command { std: "docker" "start" "-a" "d0d8c4ed5c85ccf8baae09b57fb4405ca6d325025075fcc050a86f5a6aea36b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling cortex-m v0.6.2
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking nb v0.1.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking vcell v0.1.2
[INFO] [stderr]     Checking usb-device v0.2.5
[INFO] [stderr]     Checking embedded-hal v0.2.4
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]    Compiling cortex-m-rt v0.6.12
[INFO] [stderr]    Compiling stm32ral v0.3.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]    Compiling stm32f4 v0.11.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking rgb v0.8.18
[INFO] [stderr]    Compiling synopsys-usb-otg v0.1.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking itm_logger v0.1.1
[INFO] [stderr]     Checking ufmt-write v0.1.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking bitmask v0.5.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rtt-target v0.1.1
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking smart-leds-trait v0.2.0
[INFO] [stderr]     Checking spi-memory v0.2.0
[INFO] [stderr]     Checking smart-leds v0.3.0
[INFO] [stderr]     Checking ws2812-timer-delay v0.3.0
[INFO] [stderr]     Checking usbd-serial v0.1.0
[INFO] [stderr]     Checking embedded-sdmmc v0.3.0
[INFO] [stderr]    Compiling quote v1.0.7
[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]     Checking rtt-target v0.2.0
[INFO] [stderr]     Checking panic-rtt-target v0.1.0
[INFO] [stderr]    Compiling packing_codegen v0.1.0
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stderr]     Checking packing v0.1.0
[INFO] [stderr]     Checking usbd_mass_storage v0.1.0
[INFO] [stderr]     Checking uf2_block v0.1.0
[INFO] [stderr]     Checking usbd_bulk_only_transport v0.1.0
[INFO] [stderr]     Checking usbd_scsi v0.1.0
[INFO] [stderr]     Checking stm32f4xx-hal v0.8.3
[INFO] [stderr]     Checking feather-f405 v0.2.0 (/opt/rustwide/workdir)
[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] [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 `feather-f405` (example "flash") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `feather-f405` (example "neopixel") due to 1 previous error
[INFO] [stderr] error: could not compile `feather-f405` (example "sd-usb-mass-storage") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "d0d8c4ed5c85ccf8baae09b57fb4405ca6d325025075fcc050a86f5a6aea36b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0d8c4ed5c85ccf8baae09b57fb4405ca6d325025075fcc050a86f5a6aea36b6", kill_on_drop: false }`
[INFO] [stdout] d0d8c4ed5c85ccf8baae09b57fb4405ca6d325025075fcc050a86f5a6aea36b6