[INFO] cloning repository https://github.com/nozomines/blog_os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nozomines/blog_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnozomines%2Fblog_os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnozomines%2Fblog_os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5c9273ec31ed96f0f687cf9b2a2ad90037dff27e
[INFO] testing nozomines/blog_os against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnozomines%2Fblog_os" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nozomines/blog_os on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-14/source/.cargo/config
[INFO] removed /workspace/builds/worker-14/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/nozomines/blog_os
[INFO] finished tweaking git repo https://github.com/nozomines/blog_os
[INFO] tweaked toml for git repo https://github.com/nozomines/blog_os written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/nozomines/blog_os already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b8e02e4863b6faa526a641a7c360807e3c663583323c047338dfeb130e2bb24
[INFO] running `Command { std: "docker" "start" "-a" "0b8e02e4863b6faa526a641a7c360807e3c663583323c047338dfeb130e2bb24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b8e02e4863b6faa526a641a7c360807e3c663583323c047338dfeb130e2bb24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b8e02e4863b6faa526a641a7c360807e3c663583323c047338dfeb130e2bb24", kill_on_drop: false }`
[INFO] [stdout] 0b8e02e4863b6faa526a641a7c360807e3c663583323c047338dfeb130e2bb24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 738673dd517ba056e4a2f6dfbe79972d706c34c3a31304d7e92c9a827d97fe84
[INFO] running `Command { std: "docker" "start" "-a" "738673dd517ba056e4a2f6dfbe79972d706c34c3a31304d7e92c9a827d97fe84", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bootloader v0.8.9
[INFO] [stderr]    Compiling volatile v0.2.6
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling blog_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 `blog_os`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "738673dd517ba056e4a2f6dfbe79972d706c34c3a31304d7e92c9a827d97fe84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "738673dd517ba056e4a2f6dfbe79972d706c34c3a31304d7e92c9a827d97fe84", kill_on_drop: false }`
[INFO] [stdout] 738673dd517ba056e4a2f6dfbe79972d706c34c3a31304d7e92c9a827d97fe84