[INFO] updating cached repository DeveloperWakeling/BasicRustGrep
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/DeveloperWakeling/BasicRustGrep
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/DeveloperWakeling/BasicRustGrep" "work/ex/beta-1.38-1/sources/1.37.0/gh/DeveloperWakeling/BasicRustGrep"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/DeveloperWakeling/BasicRustGrep'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/DeveloperWakeling/BasicRustGrep" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DeveloperWakeling/BasicRustGrep"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DeveloperWakeling/BasicRustGrep'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e8ed65ce54e24f1e5a877141ac39123de7f79fcb
[INFO] sha for GitHub repo DeveloperWakeling/BasicRustGrep: e8ed65ce54e24f1e5a877141ac39123de7f79fcb
[INFO] validating manifest of DeveloperWakeling/BasicRustGrep 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 DeveloperWakeling/BasicRustGrep 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 DeveloperWakeling/BasicRustGrep
[INFO] finished frobbing DeveloperWakeling/BasicRustGrep
[INFO] frobbed toml for DeveloperWakeling/BasicRustGrep written to work/ex/beta-1.38-1/sources/1.37.0/gh/DeveloperWakeling/BasicRustGrep/Cargo.toml
[INFO] started frobbing DeveloperWakeling/BasicRustGrep
[INFO] finished frobbing DeveloperWakeling/BasicRustGrep
[INFO] frobbed toml for DeveloperWakeling/BasicRustGrep written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DeveloperWakeling/BasicRustGrep/Cargo.toml
[INFO] crate DeveloperWakeling/BasicRustGrep 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing DeveloperWakeling/BasicRustGrep 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/DeveloperWakeling/BasicRustGrep:/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] f188413f09a750d81cfd8b3dc97209f690ab006c6f8b4b2de9facd16313c8d55
[INFO] running `"docker" "start" "-a" "f188413f09a750d81cfd8b3dc97209f690ab006c6f8b4b2de9facd16313c8d55"`
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:6:46
[INFO] [stderr]   |
[INFO] [stderr] 6 | 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 1.07s
[INFO] running `"docker" "inspect" "f188413f09a750d81cfd8b3dc97209f690ab006c6f8b4b2de9facd16313c8d55"`
[INFO] running `"docker" "rm" "-f" "f188413f09a750d81cfd8b3dc97209f690ab006c6f8b4b2de9facd16313c8d55"`
[INFO] [stdout] f188413f09a750d81cfd8b3dc97209f690ab006c6f8b4b2de9facd16313c8d55
[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/DeveloperWakeling/BasicRustGrep:/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] 5876aca6d6ebb324770f4eb03393173bcbba45f222bf92340cf8b35c5ec1ee0a
[INFO] running `"docker" "start" "-a" "5876aca6d6ebb324770f4eb03393173bcbba45f222bf92340cf8b35c5ec1ee0a"`
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:6:46
[INFO] [stderr]   |
[INFO] [stderr] 6 | 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 1.12s
[INFO] running `"docker" "inspect" "5876aca6d6ebb324770f4eb03393173bcbba45f222bf92340cf8b35c5ec1ee0a"`
[INFO] running `"docker" "rm" "-f" "5876aca6d6ebb324770f4eb03393173bcbba45f222bf92340cf8b35c5ec1ee0a"`
[INFO] [stdout] 5876aca6d6ebb324770f4eb03393173bcbba45f222bf92340cf8b35c5ec1ee0a
[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/DeveloperWakeling/BasicRustGrep:/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] 4bd64aeeb937732d443c8151f7e3ce0978b7396d535b2962dee4d1c37ca90fdc
[INFO] running `"docker" "start" "-a" "4bd64aeeb937732d443c8151f7e3ce0978b7396d535b2962dee4d1c37ca90fdc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/minigrep-f788900508bc8193
[INFO] [stderr]      Running /opt/crater/target/debug/deps/minigrep-2526d647343947d2
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::one_result ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "4bd64aeeb937732d443c8151f7e3ce0978b7396d535b2962dee4d1c37ca90fdc"`
[INFO] running `"docker" "rm" "-f" "4bd64aeeb937732d443c8151f7e3ce0978b7396d535b2962dee4d1c37ca90fdc"`
[INFO] [stdout] 4bd64aeeb937732d443c8151f7e3ce0978b7396d535b2962dee4d1c37ca90fdc