[INFO] cloning repository https://github.com/MattLloyd101/toy_os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MattLloyd101/toy_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMattLloyd101%2Ftoy_os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMattLloyd101%2Ftoy_os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 190fa20c46cfe031352379e5b97f1782ed347dd8
[INFO] testing MattLloyd101/toy_os against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMattLloyd101%2Ftoy_os" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MattLloyd101/toy_os on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/.cargo/config
[INFO] removed /workspace/builds/worker-4/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/MattLloyd101/toy_os
[INFO] finished tweaking git repo https://github.com/MattLloyd101/toy_os
[INFO] tweaked toml for git repo https://github.com/MattLloyd101/toy_os written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/MattLloyd101/toy_os already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bootloader v0.8.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5631febcea6e4995f40d49a670f74d3e928459e49ed9b4fe6b2dae5ff04c6672
[INFO] running `Command { std: "docker" "start" "-a" "5631febcea6e4995f40d49a670f74d3e928459e49ed9b4fe6b2dae5ff04c6672", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5631febcea6e4995f40d49a670f74d3e928459e49ed9b4fe6b2dae5ff04c6672", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5631febcea6e4995f40d49a670f74d3e928459e49ed9b4fe6b2dae5ff04c6672", kill_on_drop: false }`
[INFO] [stdout] 5631febcea6e4995f40d49a670f74d3e928459e49ed9b4fe6b2dae5ff04c6672
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 946de0c99f6a1d6cec41b46f1531f8a2178269654d531f89c3234af5243be26e
[INFO] running `Command { std: "docker" "start" "-a" "946de0c99f6a1d6cec41b46f1531f8a2178269654d531f89c3234af5243be26e", kill_on_drop: false }`
[INFO] [stderr]    Compiling bootloader v0.8.2
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling volatile v0.2.6
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling os 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 `os`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "946de0c99f6a1d6cec41b46f1531f8a2178269654d531f89c3234af5243be26e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "946de0c99f6a1d6cec41b46f1531f8a2178269654d531f89c3234af5243be26e", kill_on_drop: false }`
[INFO] [stdout] 946de0c99f6a1d6cec41b46f1531f8a2178269654d531f89c3234af5243be26e