[INFO] cloning repository https://github.com/brianwow/arduino-morse-code-led
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brianwow/arduino-morse-code-led" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrianwow%2Farduino-morse-code-led", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrianwow%2Farduino-morse-code-led'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 462db16e5bfeb231262eb4451fb019ed1f0cd30b
[INFO] checking brianwow/arduino-morse-code-led against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrianwow%2Farduino-morse-code-led" "/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/brianwow/arduino-morse-code-led 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.toml
[INFO] removed /workspace/builds/worker-0-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/brianwow/arduino-morse-code-led
[INFO] finished tweaking git repo https://github.com/brianwow/arduino-morse-code-led
[INFO] tweaked toml for git repo https://github.com/brianwow/arduino-morse-code-led written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/brianwow/arduino-morse-code-led 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]  Downloading crates ...
[INFO] [stderr]   Downloaded ufmt-macros v0.1.1
[INFO] [stderr]   Downloaded avr-device-macros v0.3.2
[INFO] [stderr]   Downloaded ufmt v0.1.0
[INFO] [stderr]   Downloaded avr-device v0.3.2
[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] bebc2badc9e26c7309c1b66400e2584c6c73b6dce5a83a8b13a06a70f0257a55
[INFO] running `Command { std: "docker" "start" "-a" "bebc2badc9e26c7309c1b66400e2584c6c73b6dce5a83a8b13a06a70f0257a55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bebc2badc9e26c7309c1b66400e2584c6c73b6dce5a83a8b13a06a70f0257a55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bebc2badc9e26c7309c1b66400e2584c6c73b6dce5a83a8b13a06a70f0257a55", kill_on_drop: false }`
[INFO] [stdout] bebc2badc9e26c7309c1b66400e2584c6c73b6dce5a83a8b13a06a70f0257a55
[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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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] b98c4dfab61f8ed1c1b545c92ba2d6629ab88d3516af7522bf5e447bdfa5c2ab
[INFO] running `Command { std: "docker" "start" "-a" "b98c4dfab61f8ed1c1b545c92ba2d6629ab88d3516af7522bf5e447bdfa5c2ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking ufmt-write v0.1.0
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling ufmt-macros v0.1.1
[INFO] [stderr]    Compiling avr-device-macros v0.3.2
[INFO] [stderr]     Checking avr-device v0.3.2
[INFO] [stderr]     Checking ufmt v0.1.0
[INFO] [stdout] error[E0635]: unknown feature `llvm_asm`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/avr-device-0.3.2/src/lib.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | #![feature(llvm_asm)]
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `avr-device` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "b98c4dfab61f8ed1c1b545c92ba2d6629ab88d3516af7522bf5e447bdfa5c2ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b98c4dfab61f8ed1c1b545c92ba2d6629ab88d3516af7522bf5e447bdfa5c2ab", kill_on_drop: false }`
[INFO] [stdout] b98c4dfab61f8ed1c1b545c92ba2d6629ab88d3516af7522bf5e447bdfa5c2ab