[INFO] cloning repository https://github.com/115130/test_os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/115130/test_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F115130%2Ftest_os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F115130%2Ftest_os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7cd6a17d6464c5453a8bbfed21373835111a3f02
[INFO] checking 115130/test_os against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F115130%2Ftest_os" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/115130/test_os
[INFO] finished tweaking git repo https://github.com/115130/test_os
[INFO] tweaked toml for git repo https://github.com/115130/test_os written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/115130/test_os on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/115130/test_os 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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa02ee8f0e12b54e69efa740f6b8ed69a633922b27aa27d2e6e7306d956c866e
[INFO] running `Command { std: "docker" "start" "-a" "fa02ee8f0e12b54e69efa740f6b8ed69a633922b27aa27d2e6e7306d956c866e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa02ee8f0e12b54e69efa740f6b8ed69a633922b27aa27d2e6e7306d956c866e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa02ee8f0e12b54e69efa740f6b8ed69a633922b27aa27d2e6e7306d956c866e", kill_on_drop: false }`
[INFO] [stdout] fa02ee8f0e12b54e69efa740f6b8ed69a633922b27aa27d2e6e7306d956c866e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a03e409ed599577fa80e2f80896d6e77f037e58a2786ca9a725c231a19457f8
[INFO] running `Command { std: "docker" "start" "-a" "1a03e409ed599577fa80e2f80896d6e77f037e58a2786ca9a725c231a19457f8", kill_on_drop: false }`
[INFO] [stderr]     Checking test_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.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/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-5f172c9a1cad1328.rlib
[INFO] [stdout]    = note: second definition in the local crate (`test_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 `test_os` (bin "test_os" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "1a03e409ed599577fa80e2f80896d6e77f037e58a2786ca9a725c231a19457f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a03e409ed599577fa80e2f80896d6e77f037e58a2786ca9a725c231a19457f8", kill_on_drop: false }`
[INFO] [stdout] 1a03e409ed599577fa80e2f80896d6e77f037e58a2786ca9a725c231a19457f8
