[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 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] d4ca94ac3ddf04fc0211350fae6805e9cd7be38a83c596089f0fd040cced786e
[INFO] running `"docker" "start" "-a" "d4ca94ac3ddf04fc0211350fae6805e9cd7be38a83c596089f0fd040cced786e"`
[INFO] [stderr]    Compiling globset v0.4.4
[INFO] [stderr]    Compiling grep-printer v0.1.3
[INFO] [stderr]    Compiling grep-cli v0.1.3
[INFO] [stderr]    Compiling grep v0.2.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.88s
[INFO] running `"docker" "inspect" "d4ca94ac3ddf04fc0211350fae6805e9cd7be38a83c596089f0fd040cced786e"`
[INFO] running `"docker" "rm" "-f" "d4ca94ac3ddf04fc0211350fae6805e9cd7be38a83c596089f0fd040cced786e"`
[INFO] [stdout] d4ca94ac3ddf04fc0211350fae6805e9cd7be38a83c596089f0fd040cced786e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 797e5a5f4beea8fcf38b5f0f35a0edbc001e50da5ba29459301fc23255633307
[INFO] running `"docker" "start" "-a" "797e5a5f4beea8fcf38b5f0f35a0edbc001e50da5ba29459301fc23255633307"`
[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 2.67s
[INFO] running `"docker" "inspect" "797e5a5f4beea8fcf38b5f0f35a0edbc001e50da5ba29459301fc23255633307"`
[INFO] running `"docker" "rm" "-f" "797e5a5f4beea8fcf38b5f0f35a0edbc001e50da5ba29459301fc23255633307"`
[INFO] [stdout] 797e5a5f4beea8fcf38b5f0f35a0edbc001e50da5ba29459301fc23255633307
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 4c2c2e86578e61765c366935c42bd68b2fdad23d31b47fb842920d5ea6554db8
[INFO] running `"docker" "start" "-a" "4c2c2e86578e61765c366935c42bd68b2fdad23d31b47fb842920d5ea6554db8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/grep-96cd88f90c15e186
[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 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] running `"docker" "inspect" "4c2c2e86578e61765c366935c42bd68b2fdad23d31b47fb842920d5ea6554db8"`
[INFO] running `"docker" "rm" "-f" "4c2c2e86578e61765c366935c42bd68b2fdad23d31b47fb842920d5ea6554db8"`
[INFO] [stdout] 4c2c2e86578e61765c366935c42bd68b2fdad23d31b47fb842920d5ea6554db8