[INFO] cloning repository https://github.com/giulpig/servo_serial_converter_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/giulpig/servo_serial_converter_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgiulpig%2Fservo_serial_converter_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgiulpig%2Fservo_serial_converter_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c74b44f7650061148f15310265cc0ff824936c9
[INFO] checking giulpig/servo_serial_converter_rust/9c74b44f7650061148f15310265cc0ff824936c9 against master#4847d6a9d07d4be9ba3196f6ad444af2d7bdde72 for pr-134276
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgiulpig%2Fservo_serial_converter_rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/giulpig/servo_serial_converter_rust on toolchain 4847d6a9d07d4be9ba3196f6ad444af2d7bdde72
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4847d6a9d07d4be9ba3196f6ad444af2d7bdde72" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-1-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/giulpig/servo_serial_converter_rust
[INFO] finished tweaking git repo https://github.com/giulpig/servo_serial_converter_rust
[INFO] tweaked toml for git repo https://github.com/giulpig/servo_serial_converter_rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/giulpig/servo_serial_converter_rust 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" "+4847d6a9d07d4be9ba3196f6ad444af2d7bdde72" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+4847d6a9d07d4be9ba3196f6ad444af2d7bdde72" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 793fea51405545928d026cac2a1263502c932120eaf64125229ec507e6cf2531
[INFO] running `Command { std: "docker" "start" "-a" "793fea51405545928d026cac2a1263502c932120eaf64125229ec507e6cf2531", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "793fea51405545928d026cac2a1263502c932120eaf64125229ec507e6cf2531", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "793fea51405545928d026cac2a1263502c932120eaf64125229ec507e6cf2531", kill_on_drop: false }`
[INFO] [stdout] 793fea51405545928d026cac2a1263502c932120eaf64125229ec507e6cf2531
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+4847d6a9d07d4be9ba3196f6ad444af2d7bdde72" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f3aba03a04a2917b500bfcb6f87313311478517894072abbb3965c77a8c4b80
[INFO] running `Command { std: "docker" "start" "-a" "3f3aba03a04a2917b500bfcb6f87313311478517894072abbb3965c77a8c4b80", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.80
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling rustversion v1.0.15
[INFO] [stderr]    Compiling embedded-hal-bus v0.1.0
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]     Checking critical-section v1.1.2
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking embedded-hal v1.0.0
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking ufmt-write v0.1.0
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking embedded-storage v0.2.0
[INFO] [stderr]     Checking unwrap-infallible v0.1.5
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]    Compiling avr-hal-generic v0.1.0 (https://github.com/rahix/avr-hal?rev=7f7d0a536d8045ed8f254fe75d9aa0d646c7a750#7f7d0a53)
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling avr-device-macros v0.5.4
[INFO] [stderr]    Compiling ufmt-macros v0.3.0
[INFO] [stderr]     Checking avr-device v0.5.4
[INFO] [stderr]     Checking ufmt v0.2.0
[INFO] [stderr]     Checking atmega-hal v0.1.0 (https://github.com/rahix/avr-hal?rev=7f7d0a536d8045ed8f254fe75d9aa0d646c7a750#7f7d0a53)
[INFO] [stderr]     Checking arduino-hal v0.1.0 (https://github.com/rahix/avr-hal?rev=7f7d0a536d8045ed8f254fe75d9aa0d646c7a750#7f7d0a53)
[INFO] [stderr]     Checking servo-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: Ensure that you are using an AVR target! You may need to change directories or pass a --target flag to cargo. See
[INFO] [stdout]               https://github.com/Rahix/avr-device/pull/41 for more details.
[INFO] [stdout]   --> src/main.rs:45:1
[INFO] [stdout]    |
[INFO] [stdout] 45 | #[arduino_hal::entry]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `arduino_hal::entry` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0570]: `"avr-interrupt"` is not a supported ABI for the current target
[INFO] [stdout]   --> src/main.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | #[avr_device::interrupt(atmega328p)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `avr_device::interrupt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `duty`
[INFO] [stdout]   --> src/main.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let mut duty:u8 = 34;
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_duty`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let mut duty:u8 = 34;
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0570`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `servo-test` (bin "servo-test") due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "3f3aba03a04a2917b500bfcb6f87313311478517894072abbb3965c77a8c4b80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f3aba03a04a2917b500bfcb6f87313311478517894072abbb3965c77a8c4b80", kill_on_drop: false }`
[INFO] [stdout] 3f3aba03a04a2917b500bfcb6f87313311478517894072abbb3965c77a8c4b80