[INFO] crate grep 0.2.4 is already in cache
[INFO] extracting crate grep 0.2.4 into work/ex/beta-1.38-1/sources/1.37.0/reg/grep/0.2.4
[INFO] extracting crate grep 0.2.4 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/grep/0.2.4
[INFO] validating manifest of grep-0.2.4 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 grep-0.2.4 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 grep-0.2.4
[INFO] finished frobbing grep-0.2.4
[INFO] frobbed toml for grep-0.2.4 written to work/ex/beta-1.38-1/sources/1.37.0/reg/grep/0.2.4/Cargo.toml
[INFO] started frobbing grep-0.2.4
[INFO] finished frobbing grep-0.2.4
[INFO] frobbed toml for grep-0.2.4 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/grep/0.2.4/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 grep-0.2.4 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/grep/0.2.4:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 576c748512837ea63a723b7a6e423007d2a53a2b2053b48a92e0766cbb7cbd70
[INFO] running `"docker" "start" "-a" "576c748512837ea63a723b7a6e423007d2a53a2b2053b48a92e0766cbb7cbd70"`
[INFO] [stderr]    Compiling bytecount v0.5.1
[INFO] [stderr]    Compiling grep-matcher v0.1.3
[INFO] [stderr]    Compiling bstr v0.2.7
[INFO] [stderr]    Compiling encoding_rs_io v0.1.6
[INFO] [stderr]    Compiling grep-regex v0.1.5
[INFO] [stderr]    Compiling grep-searcher v0.1.6
[INFO] [stderr]    Compiling globset v0.4.4
[INFO] [stderr]    Compiling grep-cli v0.1.3
[INFO] [stderr]    Compiling grep-printer v0.1.3
[INFO] [stderr]    Compiling grep v0.2.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.85s
[INFO] running `"docker" "inspect" "576c748512837ea63a723b7a6e423007d2a53a2b2053b48a92e0766cbb7cbd70"`
[INFO] running `"docker" "rm" "-f" "576c748512837ea63a723b7a6e423007d2a53a2b2053b48a92e0766cbb7cbd70"`
[INFO] [stdout] 576c748512837ea63a723b7a6e423007d2a53a2b2053b48a92e0766cbb7cbd70
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/grep/0.2.4:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 638a1ff533f3ea6027c9d52929134504de15f9ea7856b4c40a7e6e02a18a5780
[INFO] running `"docker" "start" "-a" "638a1ff533f3ea6027c9d52929134504de15f9ea7856b4c40a7e6e02a18a5780"`
[INFO] [stderr]    Compiling grep v0.2.4 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/simplegrep.rs:24:33
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn try_main() -> 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] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/simplegrep.rs:35:64
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn search(pattern: &str, paths: &[OsString]) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.30s
[INFO] running `"docker" "inspect" "638a1ff533f3ea6027c9d52929134504de15f9ea7856b4c40a7e6e02a18a5780"`
[INFO] running `"docker" "rm" "-f" "638a1ff533f3ea6027c9d52929134504de15f9ea7856b4c40a7e6e02a18a5780"`
[INFO] [stdout] 638a1ff533f3ea6027c9d52929134504de15f9ea7856b4c40a7e6e02a18a5780
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/grep/0.2.4:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] e51cd2a0e71e45673e5c1970d581acceba0c36f881785155ac00bcb8107c5235
[INFO] running `"docker" "start" "-a" "e51cd2a0e71e45673e5c1970d581acceba0c36f881785155ac00bcb8107c5235"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/grep-2109c4bdfe10a32a
[INFO] [stderr]    Doc-tests grep
[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" "e51cd2a0e71e45673e5c1970d581acceba0c36f881785155ac00bcb8107c5235"`
[INFO] running `"docker" "rm" "-f" "e51cd2a0e71e45673e5c1970d581acceba0c36f881785155ac00bcb8107c5235"`
[INFO] [stdout] e51cd2a0e71e45673e5c1970d581acceba0c36f881785155ac00bcb8107c5235