[INFO] updating cached repository intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result" "work/ex/beta-1.38-1/sources/1.37.0/gh/intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e6894e75925fd90b8cd3b34c331c034da4cd25b0
[INFO] sha for GitHub repo intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result: e6894e75925fd90b8cd3b34c331c034da4cd25b0
[INFO] validating manifest of intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result 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 intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result 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 intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result
[INFO] finished frobbing intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result
[INFO] frobbed toml for intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result written to work/ex/beta-1.38-1/sources/1.37.0/gh/intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result/Cargo.toml
[INFO] started frobbing intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result
[INFO] finished frobbing intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result
[INFO] frobbed toml for intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result/Cargo.toml
[INFO] crate intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result 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 intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 5286223b38d1768f6a6800545eb623d04911e851561c4a3c0bb040fb85a5a0c5
[INFO] running `"docker" "start" "-a" "5286223b38d1768f6a6800545eb623d04911e851561c4a3c0bb040fb85a5a0c5"`
[INFO] [stderr]    Compiling example-x-rust-x-rustbyexample-com-x-error-option_with_result v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `"docker" "inspect" "5286223b38d1768f6a6800545eb623d04911e851561c4a3c0bb040fb85a5a0c5"`
[INFO] running `"docker" "rm" "-f" "5286223b38d1768f6a6800545eb623d04911e851561c4a3c0bb040fb85a5a0c5"`
[INFO] [stdout] 5286223b38d1768f6a6800545eb623d04911e851561c4a3c0bb040fb85a5a0c5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 592aa88db4009d9f77a8d0e5bf86d7dcde4b630bdfe35956434e06348955b98e
[INFO] running `"docker" "start" "-a" "592aa88db4009d9f77a8d0e5bf86d7dcde4b630bdfe35956434e06348955b98e"`
[INFO] [stderr]    Compiling example-x-rust-x-rustbyexample-com-x-error-option_with_result v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `"docker" "inspect" "592aa88db4009d9f77a8d0e5bf86d7dcde4b630bdfe35956434e06348955b98e"`
[INFO] running `"docker" "rm" "-f" "592aa88db4009d9f77a8d0e5bf86d7dcde4b630bdfe35956434e06348955b98e"`
[INFO] [stdout] 592aa88db4009d9f77a8d0e5bf86d7dcde4b630bdfe35956434e06348955b98e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/intrepion/example-x-rust-x-rustbyexample-com-x-error-option_with_result:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 6ef7e6170836c2ce61bec30cb30bdac2eddb71f1d3467251cd4164a4bc0975d1
[INFO] running `"docker" "start" "-a" "6ef7e6170836c2ce61bec30cb30bdac2eddb71f1d3467251cd4164a4bc0975d1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/example_x_rust_x_rustbyexample_com_x_error_option_with_result-aa4e4fd406d90d10
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "6ef7e6170836c2ce61bec30cb30bdac2eddb71f1d3467251cd4164a4bc0975d1"`
[INFO] running `"docker" "rm" "-f" "6ef7e6170836c2ce61bec30cb30bdac2eddb71f1d3467251cd4164a4bc0975d1"`
[INFO] [stdout] 6ef7e6170836c2ce61bec30cb30bdac2eddb71f1d3467251cd4164a4bc0975d1