[INFO] cloning repository https://github.com/muhammad-fiaz/NextKernel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/muhammad-fiaz/NextKernel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuhammad-fiaz%2FNextKernel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuhammad-fiaz%2FNextKernel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 628baaa59f4acd50f507b597b3318c7b133fb38c
[INFO] testing muhammad-fiaz/NextKernel against 1.90.0 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuhammad-fiaz%2FNextKernel" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-7-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/muhammad-fiaz/NextKernel
[INFO] finished tweaking git repo https://github.com/muhammad-fiaz/NextKernel
[INFO] tweaked toml for git repo https://github.com/muhammad-fiaz/NextKernel written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/muhammad-fiaz/NextKernel on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/muhammad-fiaz/NextKernel 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ca52beb1e2b102f172b2b820485698317def8314f9af6c3ebf0d94e37ca9749
[INFO] running `Command { std: "docker" "start" "-a" "3ca52beb1e2b102f172b2b820485698317def8314f9af6c3ebf0d94e37ca9749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ca52beb1e2b102f172b2b820485698317def8314f9af6c3ebf0d94e37ca9749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ca52beb1e2b102f172b2b820485698317def8314f9af6c3ebf0d94e37ca9749", kill_on_drop: false }`
[INFO] [stdout] 3ca52beb1e2b102f172b2b820485698317def8314f9af6c3ebf0d94e37ca9749
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f32865ed991ee6826dd4a9a891d5106e7ec4a6cd7cc6dbc9e8948237ff1ac53
[INFO] running `Command { std: "docker" "start" "-a" "6f32865ed991ee6826dd4a9a891d5106e7ec4a6cd7cc6dbc9e8948237ff1ac53", kill_on_drop: false }`
[INFO] [stderr]    Compiling nextkernel v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "6f32865ed991ee6826dd4a9a891d5106e7ec4a6cd7cc6dbc9e8948237ff1ac53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f32865ed991ee6826dd4a9a891d5106e7ec4a6cd7cc6dbc9e8948237ff1ac53", kill_on_drop: false }`
[INFO] [stdout] 6f32865ed991ee6826dd4a9a891d5106e7ec4a6cd7cc6dbc9e8948237ff1ac53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15a9d9e4852df93b86098ecfec43f6b41dda89312229886465780f0a42e33938
[INFO] running `Command { std: "docker" "start" "-a" "15a9d9e4852df93b86098ecfec43f6b41dda89312229886465780f0a42e33938", kill_on_drop: false }`
[INFO] [stderr]    Compiling nextkernel v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/boot.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout]  8 | / fn panic(_info: &PanicInfo) -> ! {
[INFO] [stdout]  9 | |     loop {}
[INFO] [stdout] 10 | | }
[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/1.90.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-210854cf1daa4bec.so, /opt/rustwide/rustup-home/toolchains/1.90.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-210854cf1daa4bec.rlib
[INFO] [stdout]    = note: second definition in the local crate (`nextkernel`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nextkernel` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "15a9d9e4852df93b86098ecfec43f6b41dda89312229886465780f0a42e33938", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15a9d9e4852df93b86098ecfec43f6b41dda89312229886465780f0a42e33938", kill_on_drop: false }`
[INFO] [stdout] 15a9d9e4852df93b86098ecfec43f6b41dda89312229886465780f0a42e33938