[INFO] cloning repository https://github.com/ylxdzsw/nskm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ylxdzsw/nskm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fylxdzsw%2Fnskm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fylxdzsw%2Fnskm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 786e6ea8d5df7c30b8cfca03ea1ab90282a09194
[INFO] testing ylxdzsw/nskm against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fylxdzsw%2Fnskm" "/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/ylxdzsw/nskm on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ylxdzsw/nskm
[INFO] finished tweaking git repo https://github.com/ylxdzsw/nskm
[INFO] tweaked toml for git repo https://github.com/ylxdzsw/nskm written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/ylxdzsw/nskm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ad6bd2692ac443d33898f5f5a92fd071258f2b5810565ac1a642aed16035375
[INFO] running `Command { std: "docker" "start" "-a" "1ad6bd2692ac443d33898f5f5a92fd071258f2b5810565ac1a642aed16035375", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ad6bd2692ac443d33898f5f5a92fd071258f2b5810565ac1a642aed16035375", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ad6bd2692ac443d33898f5f5a92fd071258f2b5810565ac1a642aed16035375", kill_on_drop: false }`
[INFO] [stdout] 1ad6bd2692ac443d33898f5f5a92fd071258f2b5810565ac1a642aed16035375
[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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34fbf9e82686ea8852e18f6a9afb141f303091cd52daefeb55f74f547108a743
[INFO] running `Command { std: "docker" "start" "-a" "34fbf9e82686ea8852e18f6a9afb141f303091cd52daefeb55f74f547108a743", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling nskm v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.08s
[INFO] running `Command { std: "docker" "inspect" "34fbf9e82686ea8852e18f6a9afb141f303091cd52daefeb55f74f547108a743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34fbf9e82686ea8852e18f6a9afb141f303091cd52daefeb55f74f547108a743", kill_on_drop: false }`
[INFO] [stdout] 34fbf9e82686ea8852e18f6a9afb141f303091cd52daefeb55f74f547108a743
[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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c1e7358c93af4201e060e4cd61e6ea2b691d9ee86db6cdfe74da0099ebdb4e2
[INFO] running `Command { std: "docker" "start" "-a" "6c1e7358c93af4201e060e4cd61e6ea2b691d9ee86db6cdfe74da0099ebdb4e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling nskm v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.rs:50:1
[INFO] [stdout]    |
[INFO] [stdout] 50 | unsafe fn panic(_info: &core::panic::PanicInfo) -> ! {
[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/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-008055cc7d873802.so, /opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-008055cc7d873802.rlib
[INFO] [stdout]    = note: second definition in the local crate (`nskm`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nskm` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "6c1e7358c93af4201e060e4cd61e6ea2b691d9ee86db6cdfe74da0099ebdb4e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c1e7358c93af4201e060e4cd61e6ea2b691d9ee86db6cdfe74da0099ebdb4e2", kill_on_drop: false }`
[INFO] [stdout] 6c1e7358c93af4201e060e4cd61e6ea2b691d9ee86db6cdfe74da0099ebdb4e2