[INFO] cloning repository https://github.com/ncihnegn/microbit-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ncihnegn/microbit-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fncihnegn%2Fmicrobit-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fncihnegn%2Fmicrobit-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 89077fc5bc274f3fbb6c68d0019815aab9d56015
[INFO] testing ncihnegn/microbit-rs against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fncihnegn%2Fmicrobit-rs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ncihnegn/microbit-rs on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/source/.cargo/config
[INFO] started tweaking git repo https://github.com/ncihnegn/microbit-rs
[INFO] finished tweaking git repo https://github.com/ncihnegn/microbit-rs
[INFO] tweaked toml for git repo https://github.com/ncihnegn/microbit-rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/ncihnegn/microbit-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fba19487a9d20a18090d9cc74808a31b2ff8c372e0b6535cde682d0595cd9014
[INFO] running `Command { std: "docker" "start" "-a" "fba19487a9d20a18090d9cc74808a31b2ff8c372e0b6535cde682d0595cd9014", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fba19487a9d20a18090d9cc74808a31b2ff8c372e0b6535cde682d0595cd9014", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fba19487a9d20a18090d9cc74808a31b2ff8c372e0b6535cde682d0595cd9014", kill_on_drop: false }`
[INFO] [stdout] fba19487a9d20a18090d9cc74808a31b2ff8c372e0b6535cde682d0595cd9014
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aaf9ddc6f7de1426b52775fe167d80132d8758a06bf2dd90067e2eeb95e2a5ee
[INFO] running `Command { std: "docker" "start" "-a" "aaf9ddc6f7de1426b52775fe167d80132d8758a06bf2dd90067e2eeb95e2a5ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling cortex-m v0.6.2
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling vcell v0.1.2
[INFO] [stderr]    Compiling cortex-m-rt v0.6.12
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr]    Compiling fpa v0.1.0
[INFO] [stderr]    Compiling nrf51 v0.7.0
[INFO] [stderr]    Compiling nb v0.1.2
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling microbit v0.8.0
[INFO] [stderr]    Compiling panic-halt v0.2.0
[INFO] [stderr]    Compiling volatile-register v0.2.0
[INFO] [stderr]    Compiling embedded-hal v0.2.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling generic-array v0.13.2
[INFO] [stderr]    Compiling as-slice v0.1.3
[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-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `microbit-rs` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "aaf9ddc6f7de1426b52775fe167d80132d8758a06bf2dd90067e2eeb95e2a5ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaf9ddc6f7de1426b52775fe167d80132d8758a06bf2dd90067e2eeb95e2a5ee", kill_on_drop: false }`
[INFO] [stdout] aaf9ddc6f7de1426b52775fe167d80132d8758a06bf2dd90067e2eeb95e2a5ee