[INFO] cloning repository https://github.com/CramMK/microbit-snake-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CramMK/microbit-snake-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCramMK%2Fmicrobit-snake-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCramMK%2Fmicrobit-snake-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 73ca0472beeca91c08cb8c822a8f51f29109d4d9
[INFO] testing CramMK/microbit-snake-rs against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCramMK%2Fmicrobit-snake-rs" "/workspace/builds/worker-68/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-68/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CramMK/microbit-snake-rs on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-68/source/.cargo/config
[INFO] started tweaking git repo https://github.com/CramMK/microbit-snake-rs
[INFO] finished tweaking git repo https://github.com/CramMK/microbit-snake-rs
[INFO] tweaked toml for git repo https://github.com/CramMK/microbit-snake-rs written to /workspace/builds/worker-68/source/Cargo.toml
[INFO] crate git repo https://github.com/CramMK/microbit-snake-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d73bede2478def3049e801aa315f522ef2f1193caa1f42c1ce28e28dbfbfd9ba
[INFO] running `Command { std: "docker" "start" "-a" "d73bede2478def3049e801aa315f522ef2f1193caa1f42c1ce28e28dbfbfd9ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d73bede2478def3049e801aa315f522ef2f1193caa1f42c1ce28e28dbfbfd9ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d73bede2478def3049e801aa315f522ef2f1193caa1f42c1ce28e28dbfbfd9ba", kill_on_drop: false }`
[INFO] [stdout] d73bede2478def3049e801aa315f522ef2f1193caa1f42c1ce28e28dbfbfd9ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c1bc21994e1082a51e7328750695ccd293f0f15c0c8fedbae8a370eaaed9bea
[INFO] running `Command { std: "docker" "start" "-a" "6c1bc21994e1082a51e7328750695ccd293f0f15c0c8fedbae8a370eaaed9bea", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling cortex-m v0.7.3
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]    Compiling cortex-m-rt v0.6.15
[INFO] [stderr]    Compiling az v1.1.2
[INFO] [stderr]    Compiling nrf52833-pac v0.9.0
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr]    Compiling fixed v1.10.0
[INFO] [stderr]    Compiling usb-device v0.2.8
[INFO] [stderr]    Compiling half v1.7.1
[INFO] [stderr]    Compiling nrf-hal-common v0.13.0 (https://github.com/nrf-rs/nrf-hal#d7aa29ef)
[INFO] [stderr]    Compiling bytemuck v1.7.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling nrf52833-hal v0.13.0 (https://github.com/nrf-rs/nrf-hal#d7aa29ef)
[INFO] [stderr]    Compiling embedded-storage v0.1.0
[INFO] [stderr]    Compiling ufmt-write v0.1.0
[INFO] [stderr]    Compiling heapless v0.7.5
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling tiny-led-matrix v1.0.2
[INFO] [stderr]    Compiling panic-halt v0.2.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling volatile-register v0.2.1
[INFO] [stderr]    Compiling embedded-dma v0.1.2
[INFO] [stderr]    Compiling embedded-hal v0.2.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rtt-target v0.3.1
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling generic-array v0.13.3
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling as-slice v0.1.5
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling aligned v0.3.5
[INFO] [stderr]    Compiling nrf-usbd v0.1.0
[INFO] [stderr]    Compiling panic-rtt-target v0.1.2
[INFO] [stderr]    Compiling rtt-target v0.2.2
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.6.15
[INFO] [stderr]    Compiling microbit-common v0.10.1 (https://github.com/nrf-rs/microbit/#d29705d2)
[INFO] [stderr]    Compiling microbit-v2 v0.10.1 (https://github.com/nrf-rs/microbit/#d29705d2)
[INFO] [stderr]    Compiling microbit-fun v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rprintln`
[INFO] [stdout]   --> src/main.rs:18:18
[INFO] [stdout]    |
[INFO] [stdout] 18 | use rtt_target::{rprintln, rtt_init_print};
[INFO] [stdout]    |                  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `microbit-fun` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "6c1bc21994e1082a51e7328750695ccd293f0f15c0c8fedbae8a370eaaed9bea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c1bc21994e1082a51e7328750695ccd293f0f15c0c8fedbae8a370eaaed9bea", kill_on_drop: false }`
[INFO] [stdout] 6c1bc21994e1082a51e7328750695ccd293f0f15c0c8fedbae8a370eaaed9bea