[INFO] fetching crate nucleo-f446re 0.1.1...
[INFO] fixing nucleo-f446re-0.1.1 against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] extracting crate nucleo-f446re 0.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] removed /workspace/builds/worker-0-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-0-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate nucleo-f446re 0.1.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate nucleo-f446re 0.1.1
[INFO] tweaked toml for crates.io crate nucleo-f446re 0.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate nucleo-f446re 0.1.1 on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate nucleo-f446re 0.1.1 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded switch-hal v0.4.0
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.7.0
[INFO] [stderr]   Downloaded bare-metal v1.0.0
[INFO] [stderr]   Downloaded panic-probe v0.3.1
[INFO] [stderr]   Downloaded unwrap-infallible v0.1.5
[INFO] [stderr]   Downloaded enumflags2 v0.7.8
[INFO] [stderr]   Downloaded fugit-timer v0.1.3
[INFO] [stderr]   Downloaded time v0.3.31
[INFO] [stderr]   Downloaded proc-macro2 v1.0.78
[INFO] [stderr]   Downloaded ufmt-write v0.1.0
[INFO] [stderr]   Downloaded enumflags2_derive v0.7.8
[INFO] [stderr]   Downloaded stm32f4xx-hal v0.20.0
[INFO] [stderr]   Downloaded critical-section v1.1.2
[INFO] [stderr]   Downloaded quote v1.0.35
[INFO] [stderr]   Downloaded embedded-hal-nb v1.0.0
[INFO] [stderr]   Downloaded cortex-m-rt v0.7.3
[INFO] [stderr]   Downloaded rtt-target v0.4.0
[INFO] [stderr]   Downloaded document-features v0.2.8
[INFO] [stderr]   Downloaded syn v2.0.48
[INFO] [stderr]   Downloaded stm32f4 v0.15.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 246ae16f2193a8c565bc1e76e5313ab585b6b028925f2fc3347a68b61aaa087a
[INFO] running `Command { std: "docker" "start" "246ae16f2193a8c565bc1e76e5313ab585b6b028925f2fc3347a68b61aaa087a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "246ae16f2193a8c565bc1e76e5313ab585b6b028925f2fc3347a68b61aaa087a" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "246ae16f2193a8c565bc1e76e5313ab585b6b028925f2fc3347a68b61aaa087a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "246ae16f2193a8c565bc1e76e5313ab585b6b028925f2fc3347a68b61aaa087a" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cortex-m-rt v0.7.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking critical-section v1.1.2
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking gcd v2.3.0
[INFO] [stderr]    Compiling stm32f4 v0.15.1
[INFO] [stderr]    Compiling litrs v0.4.1
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking embedded-hal v1.0.0
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling stm32f4xx-hal v0.20.0
[INFO] [stderr]     Checking embedded-dma v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking fugit v0.3.7
[INFO] [stderr]     Checking volatile-register v0.2.2
[INFO] [stderr]     Checking embedded-storage v0.3.1
[INFO] [stderr]    Compiling panic-probe v0.3.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking ufmt-write v0.1.0
[INFO] [stderr]     Checking embedded-hal-nb v1.0.0
[INFO] [stderr]    Compiling nucleo-f446re v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking unwrap-infallible v0.1.5
[INFO] [stderr]     Checking rtt-target v0.4.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking fugit-timer v0.1.3
[INFO] [stderr]     Checking switch-hal v0.4.0
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking time v0.3.31
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling document-features v0.2.8
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling enumflags2_derive v0.7.8
[INFO] [stderr]     Checking enumflags2 v0.7.8
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stdout] error: `#[panic_handler]` function required, but not found
[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: `#[panic_handler]` function required, but not found
[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 `nucleo-f446re` (example "blinky_fade_direct") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `nucleo-f446re` (example "serial_loopback") due to 2 previous errors
[INFO] [stdout] error: `#[panic_handler]` function required, but not found
[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: `#[panic_handler]` function required, but not found
[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: `#[panic_handler]` function required, but not found
[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: `#[panic_handler]` function required, but not found
[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 `nucleo-f446re` (example "blinky_fade") due to 2 previous errors
[INFO] [stderr] error: could not compile `nucleo-f446re` (example "button_blink") due to 2 previous errors
[INFO] [stderr] error: could not compile `nucleo-f446re` (example "button_blink_direct") due to 2 previous errors
[INFO] [stderr] error: could not compile `nucleo-f446re` (example "serial_terminal") due to 2 previous errors
[INFO] [stdout] error: `#[panic_handler]` function required, but not found
[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 `nucleo-f446re` (example "blinky") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "246ae16f2193a8c565bc1e76e5313ab585b6b028925f2fc3347a68b61aaa087a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "246ae16f2193a8c565bc1e76e5313ab585b6b028925f2fc3347a68b61aaa087a", kill_on_drop: false }`
[INFO] [stdout] 246ae16f2193a8c565bc1e76e5313ab585b6b028925f2fc3347a68b61aaa087a
