[INFO] updating cached repository gnuvince/minidb
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gnuvince/minidb
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gnuvince/minidb" "work/ex/beta-1.38-1/sources/1.37.0/gh/gnuvince/minidb"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/gnuvince/minidb'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gnuvince/minidb" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gnuvince/minidb"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gnuvince/minidb'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] aff4e5ef12fc9c3863cbed9198f9e51275279474
[INFO] sha for GitHub repo gnuvince/minidb: aff4e5ef12fc9c3863cbed9198f9e51275279474
[INFO] validating manifest of gnuvince/minidb 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 gnuvince/minidb 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 gnuvince/minidb
[INFO] finished frobbing gnuvince/minidb
[INFO] frobbed toml for gnuvince/minidb written to work/ex/beta-1.38-1/sources/1.37.0/gh/gnuvince/minidb/Cargo.toml
[INFO] started frobbing gnuvince/minidb
[INFO] finished frobbing gnuvince/minidb
[INFO] frobbed toml for gnuvince/minidb written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gnuvince/minidb/Cargo.toml
[INFO] crate gnuvince/minidb 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 gnuvince/minidb 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-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gnuvince/minidb:/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] e65c1e5f6719ac048427b5f2c7f16a48c262b0ea97b3bbc7288dfdbc702c97c5
[INFO] running `"docker" "start" "-a" "e65c1e5f6719ac048427b5f2c7f16a48c262b0ea97b3bbc7288dfdbc702c97c5"`
[INFO] [stderr]    Compiling libc v0.2.32
[INFO] [stderr]    Compiling bincode v0.9.2
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling minidb v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:18:45
[INFO] [stderr]    |
[INFO] [stderr] 18 | type Result<T> = std::result::Result<T, 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 14.10s
[INFO] running `"docker" "inspect" "e65c1e5f6719ac048427b5f2c7f16a48c262b0ea97b3bbc7288dfdbc702c97c5"`
[INFO] running `"docker" "rm" "-f" "e65c1e5f6719ac048427b5f2c7f16a48c262b0ea97b3bbc7288dfdbc702c97c5"`
[INFO] [stdout] e65c1e5f6719ac048427b5f2c7f16a48c262b0ea97b3bbc7288dfdbc702c97c5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gnuvince/minidb:/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] fd88f5642f69b7fa8277ec0258f9a53fd5c19ea95574955a92180c16f1797a0b
[INFO] running `"docker" "start" "-a" "fd88f5642f69b7fa8277ec0258f9a53fd5c19ea95574955a92180c16f1797a0b"`
[INFO] [stderr]    Compiling minidb v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:18:45
[INFO] [stderr]    |
[INFO] [stderr] 18 | type Result<T> = std::result::Result<T, 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 0.88s
[INFO] running `"docker" "inspect" "fd88f5642f69b7fa8277ec0258f9a53fd5c19ea95574955a92180c16f1797a0b"`
[INFO] running `"docker" "rm" "-f" "fd88f5642f69b7fa8277ec0258f9a53fd5c19ea95574955a92180c16f1797a0b"`
[INFO] [stdout] fd88f5642f69b7fa8277ec0258f9a53fd5c19ea95574955a92180c16f1797a0b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gnuvince/minidb:/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] 6825200503e28885a9dfa68b7bf8bf270803c5c3827eb5805b63a74eb399c6b2
[INFO] running `"docker" "start" "-a" "6825200503e28885a9dfa68b7bf8bf270803c5c3827eb5805b63a74eb399c6b2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/minidb-ccc2cd347f273e06
[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" "6825200503e28885a9dfa68b7bf8bf270803c5c3827eb5805b63a74eb399c6b2"`
[INFO] running `"docker" "rm" "-f" "6825200503e28885a9dfa68b7bf8bf270803c5c3827eb5805b63a74eb399c6b2"`
[INFO] [stdout] 6825200503e28885a9dfa68b7bf8bf270803c5c3827eb5805b63a74eb399c6b2