[INFO] fetching crate tg-ch1-lab 0.4.2-preview.1...
[INFO] testing tg-ch1-lab-0.4.2-preview.1 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739-1
[INFO] extracting crate tg-ch1-lab 0.4.2-preview.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate tg-ch1-lab 0.4.2-preview.1
[INFO] finished tweaking crates.io crate tg-ch1-lab 0.4.2-preview.1
[INFO] tweaked toml for crates.io crate tg-ch1-lab 0.4.2-preview.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tg-ch1-lab 0.4.2-preview.1 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tg-ch1-lab 0.4.2-preview.1 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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tg-console v0.4.2-preview.1
[INFO] [stderr]   Downloaded tg-sbi v0.4.2-preview.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19d80bde5bab6f3229589148c14aea3d1b7c247eb42bcb7afd088c0d2a4ecf6f
[INFO] running `Command { std: "docker" "start" "-a" "19d80bde5bab6f3229589148c14aea3d1b7c247eb42bcb7afd088c0d2a4ecf6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19d80bde5bab6f3229589148c14aea3d1b7c247eb42bcb7afd088c0d2a4ecf6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19d80bde5bab6f3229589148c14aea3d1b7c247eb42bcb7afd088c0d2a4ecf6f", kill_on_drop: false }`
[INFO] [stdout] 19d80bde5bab6f3229589148c14aea3d1b7c247eb42bcb7afd088c0d2a4ecf6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de5ca5cb2e4e309d097b921cd13f3dc74934fedd0446305759038c389df0cd2a
[INFO] running `Command { std: "docker" "start" "-a" "de5ca5cb2e4e309d097b921cd13f3dc74934fedd0446305759038c389df0cd2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling tg-ch1-lab v0.4.2-preview.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling tg-sbi v0.4.2-preview.1
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling tg-console v0.4.2-preview.1
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `Command { std: "docker" "inspect" "de5ca5cb2e4e309d097b921cd13f3dc74934fedd0446305759038c389df0cd2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de5ca5cb2e4e309d097b921cd13f3dc74934fedd0446305759038c389df0cd2a", kill_on_drop: false }`
[INFO] [stdout] de5ca5cb2e4e309d097b921cd13f3dc74934fedd0446305759038c389df0cd2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1aba43f863533e4a481f48b3e60b997e42aa9f66cca3a9691df47bcbc447971
[INFO] running `Command { std: "docker" "start" "-a" "c1aba43f863533e4a481f48b3e60b997e42aa9f66cca3a9691df47bcbc447971", kill_on_drop: false }`
[INFO] [stderr]    Compiling tg-sbi v0.4.2-preview.1
[INFO] [stderr]    Compiling tg-console v0.4.2-preview.1
[INFO] [stderr]    Compiling tg-ch1-lab v0.4.2-preview.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.rs:79:1
[INFO] [stdout]    |
[INFO] [stdout] 79 | / fn panic(_info: &core::panic::PanicInfo) -> ! {
[INFO] [stdout] 80 | |     loop {}
[INFO] [stdout] 81 | | }
[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/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-6f68ae1f01e962b3.so, /opt/rustwide/rustup-home/toolchains/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-6f68ae1f01e962b3.rlib, /opt/rustwide/rustup-home/toolchains/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-6f68ae1f01e962b3.rmeta
[INFO] [stdout]    = note: second definition in the local crate (`tg_ch1_lab`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tg-ch1-lab` (bin "tg-ch1-lab" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "c1aba43f863533e4a481f48b3e60b997e42aa9f66cca3a9691df47bcbc447971", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1aba43f863533e4a481f48b3e60b997e42aa9f66cca3a9691df47bcbc447971", kill_on_drop: false }`
[INFO] [stdout] c1aba43f863533e4a481f48b3e60b997e42aa9f66cca3a9691df47bcbc447971
