[INFO] cloning repository https://github.com/girishnarayan/rustdemo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/girishnarayan/rustdemo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgirishnarayan%2Frustdemo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgirishnarayan%2Frustdemo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 278b297efa8f16b38709448f5b8bf2557a11052f
[INFO] checking girishnarayan/rustdemo against try#173780a87744406b7489b28349c0176f14bb3881 for pr-135841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgirishnarayan%2Frustdemo" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/girishnarayan/rustdemo on toolchain 173780a87744406b7489b28349c0176f14bb3881
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+173780a87744406b7489b28349c0176f14bb3881" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/girishnarayan/rustdemo
[INFO] finished tweaking git repo https://github.com/girishnarayan/rustdemo
[INFO] tweaked toml for git repo https://github.com/girishnarayan/rustdemo written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/girishnarayan/rustdemo 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" "+173780a87744406b7489b28349c0176f14bb3881" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+173780a87744406b7489b28349c0176f14bb3881" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d37ff6d6a0f0741d05d28fb3333fa63fea892036cc160c5340d73202d4f36a9d
[INFO] running `Command { std: "docker" "start" "-a" "d37ff6d6a0f0741d05d28fb3333fa63fea892036cc160c5340d73202d4f36a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d37ff6d6a0f0741d05d28fb3333fa63fea892036cc160c5340d73202d4f36a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d37ff6d6a0f0741d05d28fb3333fa63fea892036cc160c5340d73202d4f36a9d", kill_on_drop: false }`
[INFO] [stdout] d37ff6d6a0f0741d05d28fb3333fa63fea892036cc160c5340d73202d4f36a9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+173780a87744406b7489b28349c0176f14bb3881" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b2bf3d2d5cfa7f5c20b562d9196478704ec82c114143a82873c355c7b4b7463
[INFO] running `Command { std: "docker" "start" "-a" "2b2bf3d2d5cfa7f5c20b562d9196478704ec82c114143a82873c355c7b4b7463", kill_on_drop: false }`
[INFO] [stderr]     Checking my-rustypi 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:50:1
[INFO] [stdout]    |
[INFO] [stdout] 50 | / fn panic (_info: &PanicInfo) -> ! {
[INFO] [stdout] 51 | |     loop{}
[INFO] [stdout] 52 | | }  
[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/173780a87744406b7489b28349c0176f14bb3881/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-43b59670b7ad3fb9.rlib
[INFO] [stdout]    = note: second definition in the local crate (`my_rustypi`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `my-rustypi` (bin "my-rustypi") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `my-rustypi` (bin "my-rustypi" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "2b2bf3d2d5cfa7f5c20b562d9196478704ec82c114143a82873c355c7b4b7463", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b2bf3d2d5cfa7f5c20b562d9196478704ec82c114143a82873c355c7b4b7463", kill_on_drop: false }`
[INFO] [stdout] 2b2bf3d2d5cfa7f5c20b562d9196478704ec82c114143a82873c355c7b4b7463