[INFO] updating cached repository grobinson1/flatjson
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/grobinson1/flatjson
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/grobinson1/flatjson" "work/ex/beta-1.38-1/sources/1.37.0/gh/grobinson1/flatjson"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/grobinson1/flatjson'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/grobinson1/flatjson" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/grobinson1/flatjson"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/grobinson1/flatjson'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bf32c001c85b6e6b4b50e062149fa95fdfd9c276
[INFO] sha for GitHub repo grobinson1/flatjson: bf32c001c85b6e6b4b50e062149fa95fdfd9c276
[INFO] validating manifest of grobinson1/flatjson 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 grobinson1/flatjson 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 grobinson1/flatjson
[INFO] finished frobbing grobinson1/flatjson
[INFO] frobbed toml for grobinson1/flatjson written to work/ex/beta-1.38-1/sources/1.37.0/gh/grobinson1/flatjson/Cargo.toml
[INFO] started frobbing grobinson1/flatjson
[INFO] finished frobbing grobinson1/flatjson
[INFO] frobbed toml for grobinson1/flatjson written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/grobinson1/flatjson/Cargo.toml
[INFO] crate grobinson1/flatjson 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 grobinson1/flatjson 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-0/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/grobinson1/flatjson:/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] 263a4c459fe1be11898c3b645d1d3b81f3229b70286920ddac743def8d464140
[INFO] running `"docker" "start" "-a" "263a4c459fe1be11898c3b645d1d3b81f3229b70286920ddac743def8d464140"`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling syn v0.15.37
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling backtrace v0.3.30
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling flatjson v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:12:21
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let reader: Box<BufRead> = match input {
[INFO] [stderr]    |                     ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.60s
[INFO] running `"docker" "inspect" "263a4c459fe1be11898c3b645d1d3b81f3229b70286920ddac743def8d464140"`
[INFO] running `"docker" "rm" "-f" "263a4c459fe1be11898c3b645d1d3b81f3229b70286920ddac743def8d464140"`
[INFO] [stdout] 263a4c459fe1be11898c3b645d1d3b81f3229b70286920ddac743def8d464140
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/grobinson1/flatjson:/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] 2804c834968f06f244ebe07879cb5f7039365a1e1b116a2f55dc4c06c70efc65
[INFO] running `"docker" "start" "-a" "2804c834968f06f244ebe07879cb5f7039365a1e1b116a2f55dc4c06c70efc65"`
[INFO] [stderr]    Compiling flatjson v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:12:21
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let reader: Box<BufRead> = match input {
[INFO] [stderr]    |                     ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `"docker" "inspect" "2804c834968f06f244ebe07879cb5f7039365a1e1b116a2f55dc4c06c70efc65"`
[INFO] running `"docker" "rm" "-f" "2804c834968f06f244ebe07879cb5f7039365a1e1b116a2f55dc4c06c70efc65"`
[INFO] [stdout] 2804c834968f06f244ebe07879cb5f7039365a1e1b116a2f55dc4c06c70efc65
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/grobinson1/flatjson:/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] e369a1657d83817a2731c140e6139e5d21336a255496ecfe7b4f68426329a4c8
[INFO] running `"docker" "start" "-a" "e369a1657d83817a2731c140e6139e5d21336a255496ecfe7b4f68426329a4c8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/flatjson-186dd3ce231611a8
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test flatjson::test::test_flatten ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e369a1657d83817a2731c140e6139e5d21336a255496ecfe7b4f68426329a4c8"`
[INFO] running `"docker" "rm" "-f" "e369a1657d83817a2731c140e6139e5d21336a255496ecfe7b4f68426329a4c8"`
[INFO] [stdout] e369a1657d83817a2731c140e6139e5d21336a255496ecfe7b4f68426329a4c8