[INFO] cloning repository https://github.com/xerz-one/elmOS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xerz-one/elmOS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxerz-one%2FelmOS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxerz-one%2FelmOS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 58a6b0debbd2a8ecf1c580581391d5a4821b1b53
[INFO] checking xerz-one/elmOS against master#1fe72d35998dea48aeecaf7fc07783b0b553f24f for pr-154992-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxerz-one%2FelmOS" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-0-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/xerz-one/elmOS
[INFO] finished tweaking git repo https://github.com/xerz-one/elmOS
[INFO] tweaked toml for git repo https://github.com/xerz-one/elmOS written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/xerz-one/elmOS on toolchain 1fe72d35998dea48aeecaf7fc07783b0b553f24f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1fe72d35998dea48aeecaf7fc07783b0b553f24f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/xerz-one/elmOS 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" "+1fe72d35998dea48aeecaf7fc07783b0b553f24f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1fe72d35998dea48aeecaf7fc07783b0b553f24f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf94aa2e596c1b40e539350329f397ba67fa2bad30a0efcb78c2724c44a3a71d
[INFO] running `Command { std: "docker" "start" "-a" "cf94aa2e596c1b40e539350329f397ba67fa2bad30a0efcb78c2724c44a3a71d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf94aa2e596c1b40e539350329f397ba67fa2bad30a0efcb78c2724c44a3a71d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf94aa2e596c1b40e539350329f397ba67fa2bad30a0efcb78c2724c44a3a71d", kill_on_drop: false }`
[INFO] [stdout] cf94aa2e596c1b40e539350329f397ba67fa2bad30a0efcb78c2724c44a3a71d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1fe72d35998dea48aeecaf7fc07783b0b553f24f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5ebac5258eaf1348c1a4815606094923d1a4a5658a4d76cd294be4e53957ab8
[INFO] running `Command { std: "docker" "start" "-a" "e5ebac5258eaf1348c1a4815606094923d1a4a5658a4d76cd294be4e53957ab8", kill_on_drop: false }`
[INFO] [stderr]     Checking elmos 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] [stdout] error: `#[no_mangle]` cannot be used on internal language items
[INFO] [stdout]  --> src/main.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[no_mangle]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout] 8 | #[panic_handler]
[INFO] [stdout] 9 | fn panic(_: &PanicInfo) -> ! {
[INFO] [stdout]   | ---------------------------- should be the internal language item
[INFO] [stdout]   |
[INFO] [stdout]   = note: Rustc requires this item to have a specific mangled name.
[INFO] [stdout]   = note: If you are trying to prevent mangling to ease debugging, many
[INFO] [stdout]   = note: debuggers support a command such as `rbreak rust_begin_unwind` to
[INFO] [stdout]   = note: match `.*rust_begin_unwind.*` instead of `break rust_begin_unwind` on a specific name
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `elmos` (bin "elmos") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout]  9 | / fn panic(_: &PanicInfo) -> ! {
[INFO] [stdout] 10 | |     loop {}
[INFO] [stdout] 11 | | }
[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/1fe72d35998dea48aeecaf7fc07783b0b553f24f/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-fa01d964e82d0da8.rmeta
[INFO] [stdout]    = note: second definition in the local crate (`elmos`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `elmos` (bin "elmos" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "e5ebac5258eaf1348c1a4815606094923d1a4a5658a4d76cd294be4e53957ab8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5ebac5258eaf1348c1a4815606094923d1a4a5658a4d76cd294be4e53957ab8", kill_on_drop: false }`
[INFO] [stdout] e5ebac5258eaf1348c1a4815606094923d1a4a5658a4d76cd294be4e53957ab8
