[INFO] updating cached repository Mr-Pnut/N64-Rust-Sample
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Mr-Pnut/N64-Rust-Sample
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Mr-Pnut/N64-Rust-Sample" "work/ex/beta-1.38-1/sources/1.37.0/gh/Mr-Pnut/N64-Rust-Sample"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Mr-Pnut/N64-Rust-Sample'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Mr-Pnut/N64-Rust-Sample" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Mr-Pnut/N64-Rust-Sample"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Mr-Pnut/N64-Rust-Sample'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f99d78e29ecd5539c1d57915a6db4f5b4aa555e7
[INFO] sha for GitHub repo Mr-Pnut/N64-Rust-Sample: f99d78e29ecd5539c1d57915a6db4f5b4aa555e7
[INFO] validating manifest of Mr-Pnut/N64-Rust-Sample on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Mr-Pnut/N64-Rust-Sample on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Mr-Pnut/N64-Rust-Sample
[INFO] finished frobbing Mr-Pnut/N64-Rust-Sample
[INFO] frobbed toml for Mr-Pnut/N64-Rust-Sample written to work/ex/beta-1.38-1/sources/1.37.0/gh/Mr-Pnut/N64-Rust-Sample/Cargo.toml
[INFO] started frobbing Mr-Pnut/N64-Rust-Sample
[INFO] finished frobbing Mr-Pnut/N64-Rust-Sample
[INFO] frobbed toml for Mr-Pnut/N64-Rust-Sample written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Mr-Pnut/N64-Rust-Sample/Cargo.toml
[INFO] crate Mr-Pnut/N64-Rust-Sample already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Mr-Pnut/N64-Rust-Sample against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Mr-Pnut/N64-Rust-Sample:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] e4bd78e81b734ea9640e71d9f0c7e84637e1c9bcc5245949500712a9f6a30a9b
[INFO] running `"docker" "start" "-a" "e4bd78e81b734ea9640e71d9f0c7e84637e1c9bcc5245949500712a9f6a30a9b"`
[INFO] [stderr]    Compiling minimal v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `"docker" "inspect" "e4bd78e81b734ea9640e71d9f0c7e84637e1c9bcc5245949500712a9f6a30a9b"`
[INFO] running `"docker" "rm" "-f" "e4bd78e81b734ea9640e71d9f0c7e84637e1c9bcc5245949500712a9f6a30a9b"`
[INFO] [stdout] e4bd78e81b734ea9640e71d9f0c7e84637e1c9bcc5245949500712a9f6a30a9b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Mr-Pnut/N64-Rust-Sample:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] a703c429016cd5d76da94f0a59ba38bdbbf761357fd6279d05ad7d0561f2fe56
[INFO] running `"docker" "start" "-a" "a703c429016cd5d76da94f0a59ba38bdbbf761357fd6279d05ad7d0561f2fe56"`
[INFO] [stderr]    Compiling minimal v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0152]: duplicate lang item found: `panic_impl`.
[INFO] [stderr]  --> src/lib.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | / fn panic(_info: &PanicInfo) -> ! {
[INFO] [stderr] 7 | |   loop {}
[INFO] [stderr] 8 | | }
[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`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a703c429016cd5d76da94f0a59ba38bdbbf761357fd6279d05ad7d0561f2fe56"`
[INFO] running `"docker" "rm" "-f" "a703c429016cd5d76da94f0a59ba38bdbbf761357fd6279d05ad7d0561f2fe56"`
[INFO] [stdout] a703c429016cd5d76da94f0a59ba38bdbbf761357fd6279d05ad7d0561f2fe56