[INFO] cloning repository https://github.com/jeremystucki/microbit-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jeremystucki/microbit-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeremystucki%2Fmicrobit-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeremystucki%2Fmicrobit-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 985b59d27e3ba423ae9763b8687f61421ed11219
[INFO] testing jeremystucki/microbit-playground against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeremystucki%2Fmicrobit-playground" "/workspace/builds/worker-26/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-26/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jeremystucki/microbit-playground on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-26/source/.cargo/config
[INFO] started tweaking git repo https://github.com/jeremystucki/microbit-playground
[INFO] finished tweaking git repo https://github.com/jeremystucki/microbit-playground
[INFO] tweaked toml for git repo https://github.com/jeremystucki/microbit-playground written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] crate git repo https://github.com/jeremystucki/microbit-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vcell v0.1.2
[INFO] [stderr]   Downloaded cortex-m-rt v0.6.12
[INFO] [stderr]   Downloaded proc-macro2 v1.0.8
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.1.8
[INFO] [stderr]   Downloaded syn v1.0.14
[INFO] [stderr]   Downloaded nb v0.1.2
[INFO] [stderr]   Downloaded cast v0.2.3
[INFO] [stderr]   Downloaded embedded-hal v0.2.3
[INFO] [stderr]   Downloaded heapless v0.5.3
[INFO] [stderr]   Downloaded nrf51-hal v0.7.1
[INFO] [stderr]   Downloaded volatile-register v0.2.0
[INFO] [stderr]   Downloaded r0 v0.2.2
[INFO] [stderr]   Downloaded fpa v0.1.0
[INFO] [stderr]   Downloaded aligned v0.3.2
[INFO] [stderr]   Downloaded as-slice v0.1.2
[INFO] [stderr]   Downloaded cortex-m v0.6.2
[INFO] [stderr]   Downloaded nrf51 v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fcde68bc78286708c11dec53b77510f4ccddbebc031563027a4962f605536fdb
[INFO] running `Command { std: "docker" "start" "-a" "fcde68bc78286708c11dec53b77510f4ccddbebc031563027a4962f605536fdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fcde68bc78286708c11dec53b77510f4ccddbebc031563027a4962f605536fdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcde68bc78286708c11dec53b77510f4ccddbebc031563027a4962f605536fdb", kill_on_drop: false }`
[INFO] [stdout] fcde68bc78286708c11dec53b77510f4ccddbebc031563027a4962f605536fdb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3afaacd01ef6aa0d24bbdca3989f3602bc790b91fe366435c4ed43f999ed7365
[INFO] running `Command { std: "docker" "start" "-a" "3afaacd01ef6aa0d24bbdca3989f3602bc790b91fe366435c4ed43f999ed7365", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling cortex-m v0.6.2
[INFO] [stderr]    Compiling cortex-m-rt v0.6.12
[INFO] [stderr]    Compiling vcell v0.1.2
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr]    Compiling nrf51 v0.7.0
[INFO] [stderr]    Compiling fpa v0.1.0
[INFO] [stderr]    Compiling nb v0.1.2
[INFO] [stderr]    Compiling heapless v0.5.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling volatile-register v0.2.0
[INFO] [stderr]    Compiling embedded-hal v0.2.3
[INFO] [stderr]    Compiling hash32 v0.1.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling generic-array v0.13.2
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling as-slice v0.1.2
[INFO] [stderr]    Compiling aligned v0.3.2
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stderr]    Compiling nrf51-hal v0.7.1
[INFO] [stderr]    Compiling microbit-simple-display v0.1.0 (/opt/rustwide/workdir/simple-display)
[INFO] [stderr]    Compiling microbit-scrolling-display v0.1.0 (/opt/rustwide/workdir/scrolling-display)
[INFO] [stderr]    Compiling microbit-playground v0.1.0 (/opt/rustwide/workdir/microbit-playground)
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this can occur when a binary crate with `#![no_std]` is compiled for a target where `eh_personality` is defined in the standard library
[INFO] [stdout]   = help: you may be able to compile for a target that doesn't need `eh_personality`, specify a target with `--target` or in `.cargo/config`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `microbit-playground` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "3afaacd01ef6aa0d24bbdca3989f3602bc790b91fe366435c4ed43f999ed7365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3afaacd01ef6aa0d24bbdca3989f3602bc790b91fe366435c4ed43f999ed7365", kill_on_drop: false }`
[INFO] [stdout] 3afaacd01ef6aa0d24bbdca3989f3602bc790b91fe366435c4ed43f999ed7365