[INFO] cloning repository https://github.com/FelixNyamongo/Felix-O.S
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FelixNyamongo/Felix-O.S" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFelixNyamongo%2FFelix-O.S", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFelixNyamongo%2FFelix-O.S'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c8670be511690700e9c48580ea414a1dd81ce55f
[INFO] checking FelixNyamongo/Felix-O.S against try#2b39fe756f52bc2825bf5b2bfc385cab922dae10 for pr-143011
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFelixNyamongo%2FFelix-O.S" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/FelixNyamongo/Felix-O.S
[INFO] finished tweaking git repo https://github.com/FelixNyamongo/Felix-O.S
[INFO] tweaked toml for git repo https://github.com/FelixNyamongo/Felix-O.S written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/FelixNyamongo/Felix-O.S on toolchain 2b39fe756f52bc2825bf5b2bfc385cab922dae10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/FelixNyamongo/Felix-O.S 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" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d46bdaf638550ce9b8884014f425182a6faeb084819eb45759c08a8881de8bd
[INFO] running `Command { std: "docker" "start" "-a" "8d46bdaf638550ce9b8884014f425182a6faeb084819eb45759c08a8881de8bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d46bdaf638550ce9b8884014f425182a6faeb084819eb45759c08a8881de8bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d46bdaf638550ce9b8884014f425182a6faeb084819eb45759c08a8881de8bd", kill_on_drop: false }`
[INFO] [stdout] 8d46bdaf638550ce9b8884014f425182a6faeb084819eb45759c08a8881de8bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf9ab2a92a4e740bd5e721f557851cffd9174738e46aeed171bbbd0ff6b247fe
[INFO] running `Command { std: "docker" "start" "-a" "cf9ab2a92a4e740bd5e721f557851cffd9174738e46aeed171bbbd0ff6b247fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling bootloader v0.9.22
[INFO] [stderr]     Checking felix_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.rs:39:1
[INFO] [stdout]    |
[INFO] [stdout] 39 | / fn panic(_info: &PanicInfo)->!{
[INFO] [stdout] 40 | |     loop{}
[INFO] [stdout] 41 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stdout]    = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/2b39fe756f52bc2825bf5b2bfc385cab922dae10/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-c3f1bd7325067ba3.rlib
[INFO] [stdout]    = note: second definition in the local crate (`felix_os`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[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 `felix_os` (bin "felix_os" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `felix_os` (bin "felix_os") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "cf9ab2a92a4e740bd5e721f557851cffd9174738e46aeed171bbbd0ff6b247fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf9ab2a92a4e740bd5e721f557851cffd9174738e46aeed171bbbd0ff6b247fe", kill_on_drop: false }`
[INFO] [stdout] cf9ab2a92a4e740bd5e721f557851cffd9174738e46aeed171bbbd0ff6b247fe
