[INFO] cloning repository https://github.com/kushalupadhyaya/nanoOS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kushalupadhyaya/nanoOS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkushalupadhyaya%2FnanoOS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkushalupadhyaya%2FnanoOS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 07f4f3f0e92ad7c3b65213bea803a6c15702b8d2
[INFO] testing kushalupadhyaya/nanoOS against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkushalupadhyaya%2FnanoOS" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kushalupadhyaya/nanoOS
[INFO] finished tweaking git repo https://github.com/kushalupadhyaya/nanoOS
[INFO] tweaked toml for git repo https://github.com/kushalupadhyaya/nanoOS written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kushalupadhyaya/nanoOS on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kushalupadhyaya/nanoOS already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd3f69d237dfbe9863d545b975a11a240f46c1f1301fd6a5156bc57ae7da8ee1
[INFO] running `Command { std: "docker" "start" "-a" "fd3f69d237dfbe9863d545b975a11a240f46c1f1301fd6a5156bc57ae7da8ee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd3f69d237dfbe9863d545b975a11a240f46c1f1301fd6a5156bc57ae7da8ee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd3f69d237dfbe9863d545b975a11a240f46c1f1301fd6a5156bc57ae7da8ee1", kill_on_drop: false }`
[INFO] [stdout] fd3f69d237dfbe9863d545b975a11a240f46c1f1301fd6a5156bc57ae7da8ee1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d6b0b9ca9b0bd4d806184000b3d8771bf020f03806db9b17d2154d12dd17bdd
[INFO] running `Command { std: "docker" "start" "-a" "3d6b0b9ca9b0bd4d806184000b3d8771bf020f03806db9b17d2154d12dd17bdd", kill_on_drop: false }`
[INFO] [stderr]    Compiling nanokernel-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nanokernel-rs` (bin "nanokernel-rs") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "3d6b0b9ca9b0bd4d806184000b3d8771bf020f03806db9b17d2154d12dd17bdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d6b0b9ca9b0bd4d806184000b3d8771bf020f03806db9b17d2154d12dd17bdd", kill_on_drop: false }`
[INFO] [stdout] 3d6b0b9ca9b0bd4d806184000b3d8771bf020f03806db9b17d2154d12dd17bdd