[INFO] updating cached repository EvilRobotOverlord/minigrep
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/EvilRobotOverlord/minigrep
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/EvilRobotOverlord/minigrep" "work/ex/beta-1.38-1/sources/1.37.0/gh/EvilRobotOverlord/minigrep"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/EvilRobotOverlord/minigrep'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/EvilRobotOverlord/minigrep" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/EvilRobotOverlord/minigrep"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/EvilRobotOverlord/minigrep'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a13abeae7c74703c14fa42282a7602a942234bae
[INFO] sha for GitHub repo EvilRobotOverlord/minigrep: a13abeae7c74703c14fa42282a7602a942234bae
[INFO] validating manifest of EvilRobotOverlord/minigrep 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 EvilRobotOverlord/minigrep 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 EvilRobotOverlord/minigrep
[INFO] finished frobbing EvilRobotOverlord/minigrep
[INFO] frobbed toml for EvilRobotOverlord/minigrep written to work/ex/beta-1.38-1/sources/1.37.0/gh/EvilRobotOverlord/minigrep/Cargo.toml
[INFO] started frobbing EvilRobotOverlord/minigrep
[INFO] finished frobbing EvilRobotOverlord/minigrep
[INFO] frobbed toml for EvilRobotOverlord/minigrep written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/EvilRobotOverlord/minigrep/Cargo.toml
[INFO] crate EvilRobotOverlord/minigrep 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 EvilRobotOverlord/minigrep 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/EvilRobotOverlord/minigrep:/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] 58f6eda2396cec0f98c14b76e13bc01a65afdbca9a50365a4e85b2e7a3cf9e6e
[INFO] running `"docker" "start" "-a" "58f6eda2396cec0f98c14b76e13bc01a65afdbca9a50365a4e85b2e7a3cf9e6e"`
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/logic.rs:19:55
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn run_grep(mut config: Config) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `"docker" "inspect" "58f6eda2396cec0f98c14b76e13bc01a65afdbca9a50365a4e85b2e7a3cf9e6e"`
[INFO] running `"docker" "rm" "-f" "58f6eda2396cec0f98c14b76e13bc01a65afdbca9a50365a4e85b2e7a3cf9e6e"`
[INFO] [stdout] 58f6eda2396cec0f98c14b76e13bc01a65afdbca9a50365a4e85b2e7a3cf9e6e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/EvilRobotOverlord/minigrep:/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] 6e54e529c85a392e5c703b0c3d861086bad06d32d64a6bebbf2efc4d385aeae3
[INFO] running `"docker" "start" "-a" "6e54e529c85a392e5c703b0c3d861086bad06d32d64a6bebbf2efc4d385aeae3"`
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/logic.rs:19:55
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn run_grep(mut config: Config) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `"docker" "inspect" "6e54e529c85a392e5c703b0c3d861086bad06d32d64a6bebbf2efc4d385aeae3"`
[INFO] running `"docker" "rm" "-f" "6e54e529c85a392e5c703b0c3d861086bad06d32d64a6bebbf2efc4d385aeae3"`
[INFO] [stdout] 6e54e529c85a392e5c703b0c3d861086bad06d32d64a6bebbf2efc4d385aeae3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/EvilRobotOverlord/minigrep:/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"`
[INFO] [stdout] bca9a54213d6f1ee958acec202cd7ada402168cf564993117d3a474bc6c0abb0
[INFO] running `"docker" "start" "-a" "bca9a54213d6f1ee958acec202cd7ada402168cf564993117d3a474bc6c0abb0"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/minigrep-f788900508bc8193
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test::match_case_casts ... ok
[INFO] [stdout] test test::grep_works ... ok
[INFO] [stdout] test test::fail_config ... ok
[INFO] [stdout] test test::config_optional_arg ... ok
[INFO] [stdout] test test::config_assigns ... ok
[INFO] [stdout] test test::config_all_args ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/minigrep-2526d647343947d2
[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] [stderr]    Doc-tests minigrep
[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" "bca9a54213d6f1ee958acec202cd7ada402168cf564993117d3a474bc6c0abb0"`
[INFO] running `"docker" "rm" "-f" "bca9a54213d6f1ee958acec202cd7ada402168cf564993117d3a474bc6c0abb0"`
[INFO] [stdout] bca9a54213d6f1ee958acec202cd7ada402168cf564993117d3a474bc6c0abb0