[INFO] cloning repository rainux/hello-world-minimal-rust
[INFO] running `"git" "clone" "--bare" "git://github.com/rainux/hello-world-minimal-rust.git" "work/cache/sources/gh/rainux/hello-world-minimal-rust"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/rainux/hello-world-minimal-rust'...
[INFO] running `"git" "clone" "work/cache/sources/gh/rainux/hello-world-minimal-rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/rainux/hello-world-minimal-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/rainux/hello-world-minimal-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rainux/hello-world-minimal-rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/rainux/hello-world-minimal-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/rainux/hello-world-minimal-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 64e134cd08e27f679ad744a37f02dfba4d8e1dfb
[INFO] sha for GitHub repo rainux/hello-world-minimal-rust: 64e134cd08e27f679ad744a37f02dfba4d8e1dfb
[INFO] validating manifest of rainux/hello-world-minimal-rust on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rainux/hello-world-minimal-rust on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rainux/hello-world-minimal-rust
[INFO] finished frobbing rainux/hello-world-minimal-rust
[INFO] frobbed toml for rainux/hello-world-minimal-rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/rainux/hello-world-minimal-rust/Cargo.toml
[INFO] started frobbing rainux/hello-world-minimal-rust
[INFO] finished frobbing rainux/hello-world-minimal-rust
[INFO] frobbed toml for rainux/hello-world-minimal-rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/rainux/hello-world-minimal-rust/Cargo.toml
[INFO] crate rainux/hello-world-minimal-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing rainux/hello-world-minimal-rust against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/rainux/hello-world-minimal-rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 797418cc339dbd5c1ebb463ec0eabf2ec999aa6347a192c0c224aa7fdf6f9585
[INFO] running `"docker" "start" "-a" "797418cc339dbd5c1ebb463ec0eabf2ec999aa6347a192c0c224aa7fdf6f9585"`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling minimal-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.12s
[INFO] running `"docker" "inspect" "797418cc339dbd5c1ebb463ec0eabf2ec999aa6347a192c0c224aa7fdf6f9585"`
[INFO] running `"docker" "rm" "-f" "797418cc339dbd5c1ebb463ec0eabf2ec999aa6347a192c0c224aa7fdf6f9585"`
[INFO] [stdout] 797418cc339dbd5c1ebb463ec0eabf2ec999aa6347a192c0c224aa7fdf6f9585
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/rainux/hello-world-minimal-rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] ac650b73608b162e6f80dd2c581e9d2ed0f5c3656441a1c83b12fd67a111a9d3
[INFO] running `"docker" "start" "-a" "ac650b73608b162e6f80dd2c581e9d2ed0f5c3656441a1c83b12fd67a111a9d3"`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling minimal-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0152]: duplicate lang item found: `panic_impl`.
[INFO] [stderr]   --> src/main.rs:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | / fn panic(_info: &core::panic::PanicInfo) -> ! {
[INFO] [stderr] 30 | |     loop {}
[INFO] [stderr] 31 | | }
[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 `minimal-rust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "ac650b73608b162e6f80dd2c581e9d2ed0f5c3656441a1c83b12fd67a111a9d3"`
[INFO] running `"docker" "rm" "-f" "ac650b73608b162e6f80dd2c581e9d2ed0f5c3656441a1c83b12fd67a111a9d3"`
[INFO] [stdout] ac650b73608b162e6f80dd2c581e9d2ed0f5c3656441a1c83b12fd67a111a9d3