[INFO] fetching crate serial_write 0.1.0...
[INFO] checking serial_write-0.1.0 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate serial_write 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config
[INFO] started tweaking crates.io crate serial_write 0.1.0
[INFO] finished tweaking crates.io crate serial_write 0.1.0
[INFO] tweaked toml for crates.io crate serial_write 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serial_write 0.1.0 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serial_write 0.1.0 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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded usbd-serial v0.1.1
[INFO] [stderr]   Downloaded usb-device v0.2.9
[INFO] [stderr]   Downloaded nb v1.0.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.37
[INFO] [stderr]   Downloaded rp2040-hal-macros v0.1.0
[INFO] [stderr]   Downloaded volatile-register v0.2.1
[INFO] [stderr]   Downloaded embedded-dma v0.2.0
[INFO] [stderr]   Downloaded numtoa v0.2.4
[INFO] [stderr]   Downloaded cortex-m-rt v0.7.1
[INFO] [stderr]   Downloaded critical-section v1.1.1
[INFO] [stderr]   Downloaded embedded-time v0.12.1
[INFO] [stderr]   Downloaded rp-pico v0.7.0
[INFO] [stderr]   Downloaded rp2040-hal v0.8.0
[INFO] [stderr]   Downloaded crc-any v2.4.2
[INFO] [stderr]   Downloaded rp2040-boot2 v0.2.1
[INFO] [stderr]   Downloaded fugit v0.3.6
[INFO] [stderr]   Downloaded pio v0.2.0
[INFO] [stderr]   Downloaded cortex-m v0.7.4
[INFO] [stderr]   Downloaded syn v1.0.91
[INFO] [stderr]   Downloaded gcd v2.3.0
[INFO] [stderr]   Downloaded paste v1.0.7
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.7.0
[INFO] [stderr]   Downloaded rp2040-pac v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 812eaf6de1029f193d550ee85501a917c0734cf0c2588cd8fa830b8d398b4505
[INFO] running `Command { std: "docker" "start" "-a" "812eaf6de1029f193d550ee85501a917c0734cf0c2588cd8fa830b8d398b4505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "812eaf6de1029f193d550ee85501a917c0734cf0c2588cd8fa830b8d398b4505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "812eaf6de1029f193d550ee85501a917c0734cf0c2588cd8fa830b8d398b4505", kill_on_drop: false }`
[INFO] [stdout] 812eaf6de1029f193d550ee85501a917c0734cf0c2588cd8fa830b8d398b4505
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1376c874d4e816c5ab1c8858ae66542d7e7701aba3bb723f6713f51f795f69c3
[INFO] running `Command { std: "docker" "start" "-a" "1376c874d4e816c5ab1c8858ae66542d7e7701aba3bb723f6713f51f795f69c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling cortex-m-rt v0.7.1
[INFO] [stderr]    Compiling cortex-m v0.7.4
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling debug-helper v0.3.13
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling crc-any v2.4.2
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]    Compiling rp2040-pac v0.4.0
[INFO] [stderr]     Checking usb-device v0.2.9
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking gcd v2.3.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking fugit v0.3.6
[INFO] [stderr]     Checking critical-section v1.1.1
[INFO] [stderr]    Compiling rp-pico v0.7.0
[INFO] [stderr]     Checking embedded-dma v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking usbd-serial v0.1.1
[INFO] [stderr]     Checking numtoa v0.2.4
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]    Compiling rp2040-boot2 v0.2.1
[INFO] [stderr]     Checking serial_write v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]     Checking embedded-time v0.12.1
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]    Compiling num_enum_derive v0.5.7
[INFO] [stderr]     Checking num_enum v0.5.7
[INFO] [stderr]    Compiling rp2040-hal-macros v0.1.0
[INFO] [stderr]     Checking pio v0.2.0
[INFO] [stderr]     Checking rp2040-hal v0.8.0
[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 `serial_write` (example "example") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `serial_write` (example "test") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "1376c874d4e816c5ab1c8858ae66542d7e7701aba3bb723f6713f51f795f69c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1376c874d4e816c5ab1c8858ae66542d7e7701aba3bb723f6713f51f795f69c3", kill_on_drop: false }`
[INFO] [stdout] 1376c874d4e816c5ab1c8858ae66542d7e7701aba3bb723f6713f51f795f69c3