[INFO] fetching crate nucleo-f446re 0.1.1...
[INFO] testing nucleo-f446re-0.1.1 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate nucleo-f446re 0.1.1 into /workspace/builds/worker-6-tc1/source
[INFO] removed /workspace/builds/worker-6-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-6-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-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate nucleo-f446re 0.1.1 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.7.0
[INFO] [stderr]   Downloaded cortex-m-rt v0.7.3
[INFO] [stderr]   Downloaded embedded-hal-nb v1.0.0
[INFO] [stderr]   Downloaded ufmt-write v0.1.0
[INFO] [stderr]   Downloaded rtt-target v0.4.0
[INFO] [stderr]   Downloaded enumflags2_derive v0.7.8
[INFO] [stderr]   Downloaded enumflags2 v0.7.8
[INFO] [stderr]   Downloaded fugit-timer v0.1.3
[INFO] [stderr]   Downloaded document-features v0.2.8
[INFO] [stderr]   Downloaded bare-metal v1.0.0
[INFO] [stderr]   Downloaded panic-probe v0.3.1
[INFO] [stderr]   Downloaded time v0.3.31
[INFO] [stderr]   Downloaded fugit v0.3.7
[INFO] [stderr]   Downloaded critical-section v1.1.2
[INFO] [stderr]   Downloaded unwrap-infallible v0.1.5
[INFO] [stderr]   Downloaded switch-hal v0.4.0
[INFO] [stderr]   Downloaded stm32f4xx-hal v0.20.0
[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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 926d357455f249f88f0af0cc4baa069443a00812ac31ea3723229df3e3e25a57
[INFO] running `Command { std: "docker" "start" "-a" "926d357455f249f88f0af0cc4baa069443a00812ac31ea3723229df3e3e25a57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "926d357455f249f88f0af0cc4baa069443a00812ac31ea3723229df3e3e25a57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "926d357455f249f88f0af0cc4baa069443a00812ac31ea3723229df3e3e25a57", kill_on_drop: false }`
[INFO] [stdout] 926d357455f249f88f0af0cc4baa069443a00812ac31ea3723229df3e3e25a57
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12615a0406b59ae1cfe2d378a9e1e963a549fa973f1d2521cf8abe47414fb57a
[INFO] running `Command { std: "docker" "start" "-a" "12615a0406b59ae1cfe2d378a9e1e963a549fa973f1d2521cf8abe47414fb57a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]    Compiling cortex-m-rt v0.7.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling stm32f4 v0.15.1
[INFO] [stderr]    Compiling critical-section v1.1.2
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling gcd v2.3.0
[INFO] [stderr]    Compiling litrs v0.4.1
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling stm32f4xx-hal v0.20.0
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]    Compiling bare-metal v1.0.0
[INFO] [stderr]    Compiling embedded-hal-nb v1.0.0
[INFO] [stderr]    Compiling nucleo-f446re v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling switch-hal v0.4.0
[INFO] [stderr]    Compiling unwrap-infallible v0.1.5
[INFO] [stderr]    Compiling embedded-dma v0.2.0
[INFO] [stderr]    Compiling fugit v0.3.7
[INFO] [stderr]    Compiling deranged v0.3.11
[INFO] [stderr]    Compiling document-features v0.2.8
[INFO] [stderr]    Compiling fugit-timer v0.1.3
[INFO] [stderr]    Compiling time v0.3.31
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling enumflags2_derive v0.7.8
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]    Compiling enumflags2 v0.7.8
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.48s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: document-features v0.2.8
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "12615a0406b59ae1cfe2d378a9e1e963a549fa973f1d2521cf8abe47414fb57a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12615a0406b59ae1cfe2d378a9e1e963a549fa973f1d2521cf8abe47414fb57a", kill_on_drop: false }`
[INFO] [stdout] 12615a0406b59ae1cfe2d378a9e1e963a549fa973f1d2521cf8abe47414fb57a
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11c3d1a09bf308545ccb4e49e4949803ff32c724bcc0dd95576e7fb8bc12a9a1
[INFO] running `Command { std: "docker" "start" "-a" "11c3d1a09bf308545ccb4e49e4949803ff32c724bcc0dd95576e7fb8bc12a9a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling panic-probe v0.3.1
[INFO] [stderr]    Compiling ufmt-write v0.1.0
[INFO] [stderr]    Compiling rtt-target v0.4.0
[INFO] [stderr]    Compiling nucleo-f446re v0.1.1 (/opt/rustwide/workdir)
[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 "button_blink") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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 "serial_loopback") due to 2 previous errors
[INFO] [stderr] error: could not compile `nucleo-f446re` (example "blinky_fade_direct") due to 2 previous errors
[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 "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] [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 "button_blink_direct") due to 2 previous errors
[INFO] [stderr] error: could not compile `nucleo-f446re` (example "blinky") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "11c3d1a09bf308545ccb4e49e4949803ff32c724bcc0dd95576e7fb8bc12a9a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11c3d1a09bf308545ccb4e49e4949803ff32c724bcc0dd95576e7fb8bc12a9a1", kill_on_drop: false }`
[INFO] [stdout] 11c3d1a09bf308545ccb4e49e4949803ff32c724bcc0dd95576e7fb8bc12a9a1