[INFO] updating cached repository mattdamon108/practice-rust-greprs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mattdamon108/practice-rust-greprs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mattdamon108/practice-rust-greprs" "work/ex/beta-1.38-1/sources/1.37.0/gh/mattdamon108/practice-rust-greprs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mattdamon108/practice-rust-greprs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mattdamon108/practice-rust-greprs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mattdamon108/practice-rust-greprs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mattdamon108/practice-rust-greprs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9c0225366480024d0d5c393cce46e7671cfe2a50
[INFO] sha for GitHub repo mattdamon108/practice-rust-greprs: 9c0225366480024d0d5c393cce46e7671cfe2a50
[INFO] validating manifest of mattdamon108/practice-rust-greprs 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 mattdamon108/practice-rust-greprs 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 mattdamon108/practice-rust-greprs
[INFO] finished frobbing mattdamon108/practice-rust-greprs
[INFO] frobbed toml for mattdamon108/practice-rust-greprs written to work/ex/beta-1.38-1/sources/1.37.0/gh/mattdamon108/practice-rust-greprs/Cargo.toml
[INFO] started frobbing mattdamon108/practice-rust-greprs
[INFO] finished frobbing mattdamon108/practice-rust-greprs
[INFO] frobbed toml for mattdamon108/practice-rust-greprs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mattdamon108/practice-rust-greprs/Cargo.toml
[INFO] crate mattdamon108/practice-rust-greprs 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 mattdamon108/practice-rust-greprs 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mattdamon108/practice-rust-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 59b909252044db04c79dd8fc034e53b9234fcc9f799e5daaedd8fe8892b9148d
[INFO] running `"docker" "start" "-a" "59b909252044db04c79dd8fc034e53b9234fcc9f799e5daaedd8fe8892b9148d"`
[INFO] [stderr]    Compiling greprs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:36:46
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn run(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 1.99s
[INFO] running `"docker" "inspect" "59b909252044db04c79dd8fc034e53b9234fcc9f799e5daaedd8fe8892b9148d"`
[INFO] running `"docker" "rm" "-f" "59b909252044db04c79dd8fc034e53b9234fcc9f799e5daaedd8fe8892b9148d"`
[INFO] [stdout] 59b909252044db04c79dd8fc034e53b9234fcc9f799e5daaedd8fe8892b9148d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mattdamon108/practice-rust-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] b7c3030e186b98e864717e7c68d9349c512d1b1cec7346d0e71d5aea3883e37d
[INFO] running `"docker" "start" "-a" "b7c3030e186b98e864717e7c68d9349c512d1b1cec7346d0e71d5aea3883e37d"`
[INFO] [stderr]    Compiling greprs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:36:46
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn run(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 1.93s
[INFO] running `"docker" "inspect" "b7c3030e186b98e864717e7c68d9349c512d1b1cec7346d0e71d5aea3883e37d"`
[INFO] running `"docker" "rm" "-f" "b7c3030e186b98e864717e7c68d9349c512d1b1cec7346d0e71d5aea3883e37d"`
[INFO] [stdout] b7c3030e186b98e864717e7c68d9349c512d1b1cec7346d0e71d5aea3883e37d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mattdamon108/practice-rust-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 0bd36c4dfd9c381c9c49c947915429670b9107b6d03cf1beaaba9d811c6cc840
[INFO] running `"docker" "start" "-a" "0bd36c4dfd9c381c9c49c947915429670b9107b6d03cf1beaaba9d811c6cc840"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/greprs-76c719fec6b3e18c
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test::case_sensitive ... ok
[INFO] [stdout] test test::case_insensitive ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/greprs-305bb374acb7e043
[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 greprs
[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" "0bd36c4dfd9c381c9c49c947915429670b9107b6d03cf1beaaba9d811c6cc840"`
[INFO] running `"docker" "rm" "-f" "0bd36c4dfd9c381c9c49c947915429670b9107b6d03cf1beaaba9d811c6cc840"`
[INFO] [stdout] 0bd36c4dfd9c381c9c49c947915429670b9107b6d03cf1beaaba9d811c6cc840