[INFO] fetching crate untitled_os 0.1.0...
[INFO] checking untitled_os-0.1.0 against try#59a256151e578f525a26127f2c3e3a6c7e2982ca for pr-149291
[INFO] extracting crate untitled_os 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] removed /workspace/builds/worker-2-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate untitled_os 0.1.0
[INFO] finished tweaking crates.io crate untitled_os 0.1.0
[INFO] tweaked toml for crates.io crate untitled_os 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate untitled_os 0.1.0 on toolchain 59a256151e578f525a26127f2c3e3a6c7e2982ca
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+59a256151e578f525a26127f2c3e3a6c7e2982ca" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate untitled_os 0.1.0 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" "+59a256151e578f525a26127f2c3e3a6c7e2982ca" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+59a256151e578f525a26127f2c3e3a6c7e2982ca" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c28ff98f60d87b9082279095ffaa63928ebc6369997525300843b7fd8d4ba34
[INFO] running `Command { std: "docker" "start" "-a" "8c28ff98f60d87b9082279095ffaa63928ebc6369997525300843b7fd8d4ba34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c28ff98f60d87b9082279095ffaa63928ebc6369997525300843b7fd8d4ba34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c28ff98f60d87b9082279095ffaa63928ebc6369997525300843b7fd8d4ba34", kill_on_drop: false }`
[INFO] [stdout] 8c28ff98f60d87b9082279095ffaa63928ebc6369997525300843b7fd8d4ba34
[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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+59a256151e578f525a26127f2c3e3a6c7e2982ca" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9bfeea929f817ff7a91daf7245e30b31b993d8c02db5fe57033fe3203ba78c9d
[INFO] running `Command { std: "docker" "start" "-a" "9bfeea929f817ff7a91daf7245e30b31b993d8c02db5fe57033fe3203ba78c9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking uguid v2.2.0
[INFO] [stderr]     Checking bit_field v0.10.2
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ucs2 v0.3.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling uefi-macros v0.13.0
[INFO] [stderr]    Compiling ptr_meta_derive v0.2.0
[INFO] [stderr]     Checking ptr_meta v0.2.0
[INFO] [stderr]     Checking uefi-raw v0.5.0
[INFO] [stderr]     Checking uefi v0.26.0
[INFO] [stderr]     Checking uefi-services v0.23.0
[INFO] [stderr]     Checking untitled_os 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[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | / unsafe fn panic(info: &PanicInfo) -> ! {
[INFO] [stdout] 32 | |     if let Some(console) = PANIC_CONSOLE {
[INFO] [stdout] 33 | |         DisposablePanicWriter::new(*console).panic(info);
[INFO] [stdout] ...  |
[INFO] [stdout] 36 | | }
[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/59a256151e578f525a26127f2c3e3a6c7e2982ca/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-eb5e5b1ac38e128b.rlib
[INFO] [stdout]    = note: second definition in the local crate (`untitled_os`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `untitled_os` (bin "untitled_os" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `untitled_os` (bin "untitled_os") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "9bfeea929f817ff7a91daf7245e30b31b993d8c02db5fe57033fe3203ba78c9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bfeea929f817ff7a91daf7245e30b31b993d8c02db5fe57033fe3203ba78c9d", kill_on_drop: false }`
[INFO] [stdout] 9bfeea929f817ff7a91daf7245e30b31b993d8c02db5fe57033fe3203ba78c9d