[INFO] crate grep 0.2.4 is already in cache
[INFO] extracting crate grep 0.2.4 into work/ex/beta-1.37-6/sources/1.36.0/reg/grep/0.2.4
[INFO] extracting crate grep 0.2.4 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/grep/0.2.4
[INFO] validating manifest of grep-0.2.4 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of grep-0.2.4 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "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-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/reg/grep/0.2.4/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing grep-0.2.4 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] ecc51e2a7bc74e772da25f6b711fd3ef279f329d0f023d7af581edc8fa03e215
[INFO] running `"docker" "start" "-a" "ecc51e2a7bc74e772da25f6b711fd3ef279f329d0f023d7af581edc8fa03e215"`
[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 5.43s
[INFO] running `"docker" "inspect" "ecc51e2a7bc74e772da25f6b711fd3ef279f329d0f023d7af581edc8fa03e215"`
[INFO] running `"docker" "rm" "-f" "ecc51e2a7bc74e772da25f6b711fd3ef279f329d0f023d7af581edc8fa03e215"`
[INFO] [stdout] ecc51e2a7bc74e772da25f6b711fd3ef279f329d0f023d7af581edc8fa03e215
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 08635ebb5359ee8a8dbad130bd22a1502daac6197a274b863bda3b1b51c1efce
[INFO] running `"docker" "start" "-a" "08635ebb5359ee8a8dbad130bd22a1502daac6197a274b863bda3b1b51c1efce"`
[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 3.34s
[INFO] running `"docker" "inspect" "08635ebb5359ee8a8dbad130bd22a1502daac6197a274b863bda3b1b51c1efce"`
[INFO] running `"docker" "rm" "-f" "08635ebb5359ee8a8dbad130bd22a1502daac6197a274b863bda3b1b51c1efce"`
[INFO] [stdout] 08635ebb5359ee8a8dbad130bd22a1502daac6197a274b863bda3b1b51c1efce
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 534d8b016c57605224f463346df1b5011de5231e422bd2cbd30c5e3f6b852f61
[INFO] running `"docker" "start" "-a" "534d8b016c57605224f463346df1b5011de5231e422bd2cbd30c5e3f6b852f61"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/grep-7a29d4503be82a84
[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" "534d8b016c57605224f463346df1b5011de5231e422bd2cbd30c5e3f6b852f61"`
[INFO] running `"docker" "rm" "-f" "534d8b016c57605224f463346df1b5011de5231e422bd2cbd30c5e3f6b852f61"`
[INFO] [stdout] 534d8b016c57605224f463346df1b5011de5231e422bd2cbd30c5e3f6b852f61