[INFO] updating cached repository marco-fp/rusty_grep
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/marco-fp/rusty_grep
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/marco-fp/rusty_grep" "work/ex/beta-1.38-1/sources/1.37.0/gh/marco-fp/rusty_grep"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/marco-fp/rusty_grep'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/marco-fp/rusty_grep" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/marco-fp/rusty_grep"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/marco-fp/rusty_grep'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 20700e006fbe1c7ecebc7f061fe81162536458a5
[INFO] sha for GitHub repo marco-fp/rusty_grep: 20700e006fbe1c7ecebc7f061fe81162536458a5
[INFO] validating manifest of marco-fp/rusty_grep 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 marco-fp/rusty_grep 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 marco-fp/rusty_grep
[INFO] finished frobbing marco-fp/rusty_grep
[INFO] frobbed toml for marco-fp/rusty_grep written to work/ex/beta-1.38-1/sources/1.37.0/gh/marco-fp/rusty_grep/Cargo.toml
[INFO] started frobbing marco-fp/rusty_grep
[INFO] finished frobbing marco-fp/rusty_grep
[INFO] frobbed toml for marco-fp/rusty_grep written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/marco-fp/rusty_grep/Cargo.toml
[INFO] crate marco-fp/rusty_grep 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 marco-fp/rusty_grep 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/marco-fp/rusty_grep:/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] b734c0b3e2fc04d5acf385481db118055ee7162f700ac756449384795c25212d
[INFO] running `"docker" "start" "-a" "b734c0b3e2fc04d5acf385481db118055ee7162f700ac756449384795c25212d"`
[INFO] [stderr]    Compiling rusty_grep v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:5:46
[INFO] [stderr]   |
[INFO] [stderr] 5 | 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 1.02s
[INFO] running `"docker" "inspect" "b734c0b3e2fc04d5acf385481db118055ee7162f700ac756449384795c25212d"`
[INFO] running `"docker" "rm" "-f" "b734c0b3e2fc04d5acf385481db118055ee7162f700ac756449384795c25212d"`
[INFO] [stdout] b734c0b3e2fc04d5acf385481db118055ee7162f700ac756449384795c25212d
[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/marco-fp/rusty_grep:/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] 4dab95bbc65786c47cde5e17053281c68bad0c537750472123ed5d8a8beb9363
[INFO] running `"docker" "start" "-a" "4dab95bbc65786c47cde5e17053281c68bad0c537750472123ed5d8a8beb9363"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rusty_grep v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:5:46
[INFO] [stderr]   |
[INFO] [stderr] 5 | 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 0.58s
[INFO] running `"docker" "inspect" "4dab95bbc65786c47cde5e17053281c68bad0c537750472123ed5d8a8beb9363"`
[INFO] running `"docker" "rm" "-f" "4dab95bbc65786c47cde5e17053281c68bad0c537750472123ed5d8a8beb9363"`
[INFO] [stdout] 4dab95bbc65786c47cde5e17053281c68bad0c537750472123ed5d8a8beb9363
[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/marco-fp/rusty_grep:/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] 719361ec35a0090333ae87c02a7959359e44eba90db4fbe111fec7676808ce1c
[INFO] running `"docker" "start" "-a" "719361ec35a0090333ae87c02a7959359e44eba90db4fbe111fec7676808ce1c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rusty_grep-033c92b0e491b96d
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::one_result ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rusty_grep-a80a7ac13008476c
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rusty_grep
[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] [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" "719361ec35a0090333ae87c02a7959359e44eba90db4fbe111fec7676808ce1c"`
[INFO] running `"docker" "rm" "-f" "719361ec35a0090333ae87c02a7959359e44eba90db4fbe111fec7676808ce1c"`
[INFO] [stdout] 719361ec35a0090333ae87c02a7959359e44eba90db4fbe111fec7676808ce1c