[INFO] updating cached repository mkpankov/greprs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mkpankov/greprs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mkpankov/greprs" "work/ex/beta-1.37-6/sources/1.36.0/gh/mkpankov/greprs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/mkpankov/greprs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mkpankov/greprs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mkpankov/greprs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mkpankov/greprs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 18af23728eead031190297aee7cd231025e015b5
[INFO] sha for GitHub repo mkpankov/greprs: 18af23728eead031190297aee7cd231025e015b5
[INFO] validating manifest of mkpankov/greprs 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 mkpankov/greprs 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 mkpankov/greprs
[INFO] finished frobbing mkpankov/greprs
[INFO] frobbed toml for mkpankov/greprs written to work/ex/beta-1.37-6/sources/1.36.0/gh/mkpankov/greprs/Cargo.toml
[INFO] started frobbing mkpankov/greprs
[INFO] finished frobbing mkpankov/greprs
[INFO] frobbed toml for mkpankov/greprs written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mkpankov/greprs/Cargo.toml
[INFO] crate mkpankov/greprs 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 mkpankov/greprs 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-4/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/mkpankov/greprs:/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] 6b96a35bfdfe1ad1c035556365068c51655f96d50e5ea98aa8490c80a040d1ce
[INFO] running `"docker" "start" "-a" "6b96a35bfdfe1ad1c035556365068c51655f96d50e5ea98aa8490c80a040d1ce"`
[INFO] [stderr]    Compiling greprs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.54s
[INFO] running `"docker" "inspect" "6b96a35bfdfe1ad1c035556365068c51655f96d50e5ea98aa8490c80a040d1ce"`
[INFO] running `"docker" "rm" "-f" "6b96a35bfdfe1ad1c035556365068c51655f96d50e5ea98aa8490c80a040d1ce"`
[INFO] [stdout] 6b96a35bfdfe1ad1c035556365068c51655f96d50e5ea98aa8490c80a040d1ce
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/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/mkpankov/greprs:/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] 44778a2d5674c160a6b53795a1800b262c3c20939c8a412c3c30be301604941c
[INFO] running `"docker" "start" "-a" "44778a2d5674c160a6b53795a1800b262c3c20939c8a412c3c30be301604941c"`
[INFO] [stderr]    Compiling greprs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "44778a2d5674c160a6b53795a1800b262c3c20939c8a412c3c30be301604941c"`
[INFO] running `"docker" "rm" "-f" "44778a2d5674c160a6b53795a1800b262c3c20939c8a412c3c30be301604941c"`
[INFO] [stdout] 44778a2d5674c160a6b53795a1800b262c3c20939c8a412c3c30be301604941c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/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/mkpankov/greprs:/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"`
[INFO] [stdout] 64f685cf3e9b8bf5c604f9609a2dffadc8155167a3096aaa4ab5f6d66511c7c4
[INFO] running `"docker" "start" "-a" "64f685cf3e9b8bf5c604f9609a2dffadc8155167a3096aaa4ab5f6d66511c7c4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/greprs-3f25bcfb1598bf48
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test search_two_entries ... ok
[INFO] [stdout] test search_one_entry ... ok
[INFO] [stdout] test search_no_entries ... ok
[INFO] [stdout] test search_directory_nonrecursively ... ok
[INFO] [stdout] test search_cyrilic_entry ... ok
[INFO] [stdout] test search_empty_input ... ok
[INFO] [stderr] 
[INFO] [stderr] thread 'recursive_walk' has overflowed its stack
[INFO] [stderr] fatal runtime error: stack overflow
[INFO] [stderr] error: process didn't exit successfully: `/opt/crater/target/debug/deps/greprs-3f25bcfb1598bf48` (signal: 6, SIGABRT: process abort signal)
[INFO] running `"docker" "inspect" "64f685cf3e9b8bf5c604f9609a2dffadc8155167a3096aaa4ab5f6d66511c7c4"`
[INFO] running `"docker" "rm" "-f" "64f685cf3e9b8bf5c604f9609a2dffadc8155167a3096aaa4ab5f6d66511c7c4"`
[INFO] [stdout] 64f685cf3e9b8bf5c604f9609a2dffadc8155167a3096aaa4ab5f6d66511c7c4