[INFO] updating cached repository https://github.com/jgrant27/rust_baby_dragon
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e9686b4009eea12dbcf4c1f6d8503b29a444004e
[INFO] testing jgrant27/rust_baby_dragon against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjgrant27%2Frust_baby_dragon" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jgrant27/rust_baby_dragon on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jgrant27/rust_baby_dragon
[INFO] finished tweaking git repo https://github.com/jgrant27/rust_baby_dragon
[INFO] tweaked toml for git repo https://github.com/jgrant27/rust_baby_dragon written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/jgrant27/rust_baby_dragon already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] f5771729214a83074266fde136eb221439a9f9114c966629d20b1632ff56a9c3
[INFO] running `"docker" "start" "-a" "f5771729214a83074266fde136eb221439a9f9114c966629d20b1632ff56a9c3"`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling rust_baby_dragon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.10s
[INFO] running `"docker" "inspect" "f5771729214a83074266fde136eb221439a9f9114c966629d20b1632ff56a9c3"`
[INFO] running `"docker" "rm" "-f" "f5771729214a83074266fde136eb221439a9f9114c966629d20b1632ff56a9c3"`
[INFO] [stdout] f5771729214a83074266fde136eb221439a9f9114c966629d20b1632ff56a9c3
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9f0511ff401525cb2a591b9ce37cc79bd103140e4476146e08f7c34d37c2ce6e
[INFO] running `"docker" "start" "-a" "9f0511ff401525cb2a591b9ce37cc79bd103140e4476146e08f7c34d37c2ce6e"`
[INFO] [stderr]    Compiling rust_baby_dragon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0152]: duplicate lang item found: `panic_impl`.
[INFO] [stderr]   --> src/main.rs:51:1
[INFO] [stderr]    |
[INFO] [stderr] 51 | / fn my_panic(_info: &core::panic::PanicInfo) -> ! {
[INFO] [stderr] 52 | |     loop {}
[INFO] [stderr] 53 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: first defined in crate `std`.
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0152`.
[INFO] [stderr] error: Could not compile `rust_baby_dragon`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "9f0511ff401525cb2a591b9ce37cc79bd103140e4476146e08f7c34d37c2ce6e"`
[INFO] running `"docker" "rm" "-f" "9f0511ff401525cb2a591b9ce37cc79bd103140e4476146e08f7c34d37c2ce6e"`
[INFO] [stdout] 9f0511ff401525cb2a591b9ce37cc79bd103140e4476146e08f7c34d37c2ce6e