[INFO] cloning repository https://github.com/chutchinson/k210-examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chutchinson/k210-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchutchinson%2Fk210-examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchutchinson%2Fk210-examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4a3b06c3b5b57043ea9a441e333caa5e3c748b28
[INFO] checking chutchinson/k210-examples against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchutchinson%2Fk210-examples" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chutchinson/k210-examples on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/chutchinson/k210-examples
[INFO] finished tweaking git repo https://github.com/chutchinson/k210-examples
[INFO] tweaked toml for git repo https://github.com/chutchinson/k210-examples written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/chutchinson/k210-examples 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/riscv-rust/k210-hal`
[INFO] [stderr]     Updating git repository `https://github.com/riscv-rust/k210-pac`
[INFO] [stderr]     Updating git repository `https://github.com/rust-embedded/riscv`
[INFO] [stderr]     Updating git repository `https://github.com/rust-embedded/riscv-rt`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded riscv v0.6.0
[INFO] [stderr]   Downloaded embedded-hal v1.0.0-alpha.1
[INFO] [stderr]   Downloaded bit_field v0.10.0
[INFO] [stderr]   Downloaded k210-pac v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92ab1950684e83055756d6c13b4a0ed015dcec49607bca43ab3dedd286148b8e
[INFO] running `Command { std: "docker" "start" "-a" "92ab1950684e83055756d6c13b4a0ed015dcec49607bca43ab3dedd286148b8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92ab1950684e83055756d6c13b4a0ed015dcec49607bca43ab3dedd286148b8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92ab1950684e83055756d6c13b4a0ed015dcec49607bca43ab3dedd286148b8e", kill_on_drop: false }`
[INFO] [stdout] 92ab1950684e83055756d6c13b4a0ed015dcec49607bca43ab3dedd286148b8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a19d8cd5ba99637d8156e5c4d12c9af31ad555267e9115e376d5e7a3a04c632d
[INFO] running `Command { std: "docker" "start" "-a" "a19d8cd5ba99637d8156e5c4d12c9af31ad555267e9115e376d5e7a3a04c632d", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling riscv v0.5.4
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]     Checking bit_field v0.10.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling k210-pac v0.2.0
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking bit_field v0.9.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking vcell v0.1.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling k210-pac v0.2.0 (https://github.com/riscv-rust/k210-pac#53a317fc)
[INFO] [stderr]     Checking embedded-hal v1.0.0-alpha.1
[INFO] [stderr]     Checking r0 v1.0.0
[INFO] [stderr]    Compiling k210-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling riscv-target v0.1.2
[INFO] [stderr]    Compiling riscv v0.6.0
[INFO] [stderr]    Compiling riscv v0.6.0 (https://github.com/rust-embedded/riscv#39ff09ee)
[INFO] [stderr]    Compiling riscv-rt v0.8.0 (https://github.com/rust-embedded/riscv-rt#47ece5f5)
[INFO] [stderr]     Checking k210-hal v0.2.0 (https://github.com/riscv-rust/k210-hal#5471dbb8)
[INFO] [stderr]    Compiling riscv-rt-macros v0.1.6 (https://github.com/rust-embedded/riscv-rt#47ece5f5)
[INFO] [stdout] warning: unused imports: `fpioa`, `pac`, `prelude::*`
[INFO] [stdout]  --> examples/blink.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use k210_hal::{prelude::*, fpioa, pac};
[INFO] [stdout]   |                ^^^^^^^^^^  ^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Gpio`
[INFO] [stdout]  --> examples/blink.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | use k210_hal::gpio::{Gpio};
[INFO] [stdout]   |                      ^^^^
[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: aborting due to 1 previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `k210-example` (example "blink") due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a19d8cd5ba99637d8156e5c4d12c9af31ad555267e9115e376d5e7a3a04c632d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a19d8cd5ba99637d8156e5c4d12c9af31ad555267e9115e376d5e7a3a04c632d", kill_on_drop: false }`
[INFO] [stdout] a19d8cd5ba99637d8156e5c4d12c9af31ad555267e9115e376d5e7a3a04c632d