[INFO] cloning repository https://github.com/bryantheastronaut/rust_toy-os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bryantheastronaut/rust_toy-os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbryantheastronaut%2Frust_toy-os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbryantheastronaut%2Frust_toy-os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0483e4652ac5044a7385b436642fc894a628a4fc
[INFO] checking bryantheastronaut/rust_toy-os/0483e4652ac5044a7385b436642fc894a628a4fc against try#96ad39d809ea5a132d223acdaa01b9a8d3a26348 for pr-129346
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbryantheastronaut%2Frust_toy-os" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bryantheastronaut/rust_toy-os on toolchain 96ad39d809ea5a132d223acdaa01b9a8d3a26348
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+96ad39d809ea5a132d223acdaa01b9a8d3a26348" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bryantheastronaut/rust_toy-os
[INFO] finished tweaking git repo https://github.com/bryantheastronaut/rust_toy-os
[INFO] tweaked toml for git repo https://github.com/bryantheastronaut/rust_toy-os written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/bryantheastronaut/rust_toy-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" "+96ad39d809ea5a132d223acdaa01b9a8d3a26348" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:96c0aa5895ecf336b730ef27bcdde6e21027415df19888aad3cf1448e5d65d90" "/opt/rustwide/cargo-home/bin/cargo" "+96ad39d809ea5a132d223acdaa01b9a8d3a26348" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13a8d6171fddf894e14c219217ccc2d03860161058fdc54637fa9b4554b72324
[INFO] running `Command { std: "docker" "start" "-a" "13a8d6171fddf894e14c219217ccc2d03860161058fdc54637fa9b4554b72324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13a8d6171fddf894e14c219217ccc2d03860161058fdc54637fa9b4554b72324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13a8d6171fddf894e14c219217ccc2d03860161058fdc54637fa9b4554b72324", kill_on_drop: false }`
[INFO] [stdout] 13a8d6171fddf894e14c219217ccc2d03860161058fdc54637fa9b4554b72324
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:96c0aa5895ecf336b730ef27bcdde6e21027415df19888aad3cf1448e5d65d90" "/opt/rustwide/cargo-home/bin/cargo" "+96ad39d809ea5a132d223acdaa01b9a8d3a26348" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aceb1a9926c0e9c70df71ccc806b578cf09e44a2e3bf7c084d3550d8dda05805
[INFO] running `Command { std: "docker" "start" "-a" "aceb1a9926c0e9c70df71ccc806b578cf09e44a2e3bf7c084d3550d8dda05805", kill_on_drop: false }`
[INFO] [stderr]     Checking toy_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]  --> src/main.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | / fn panic(_info: &PanicInfo) -> ! {
[INFO] [stdout] 8 | |     loop {}
[INFO] [stdout] 9 | | }
[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/96ad39d809ea5a132d223acdaa01b9a8d3a26348/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-4b9090474325d796.rlib
[INFO] [stdout]   = note: second definition in the local crate (`toy_os`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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 `toy_os` (bin "toy_os" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "aceb1a9926c0e9c70df71ccc806b578cf09e44a2e3bf7c084d3550d8dda05805", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aceb1a9926c0e9c70df71ccc806b578cf09e44a2e3bf7c084d3550d8dda05805", kill_on_drop: false }`
[INFO] [stdout] aceb1a9926c0e9c70df71ccc806b578cf09e44a2e3bf7c084d3550d8dda05805