[INFO] updating cached repository ddrscott/stream_stats
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ddrscott/stream_stats
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ddrscott/stream_stats" "work/ex/beta-1.38-1/sources/1.37.0/gh/ddrscott/stream_stats"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ddrscott/stream_stats'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ddrscott/stream_stats" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ddrscott/stream_stats"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ddrscott/stream_stats'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d47fa9cc5ea13b75b42ef52a9d1720d51ebaeb01
[INFO] sha for GitHub repo ddrscott/stream_stats: d47fa9cc5ea13b75b42ef52a9d1720d51ebaeb01
[INFO] validating manifest of ddrscott/stream_stats 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 ddrscott/stream_stats 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 ddrscott/stream_stats
[INFO] finished frobbing ddrscott/stream_stats
[INFO] frobbed toml for ddrscott/stream_stats written to work/ex/beta-1.38-1/sources/1.37.0/gh/ddrscott/stream_stats/Cargo.toml
[INFO] started frobbing ddrscott/stream_stats
[INFO] finished frobbing ddrscott/stream_stats
[INFO] frobbed toml for ddrscott/stream_stats written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ddrscott/stream_stats/Cargo.toml
[INFO] crate ddrscott/stream_stats 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ddrscott/stream_stats/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[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] [stderr]     Blocking waiting for file lock on package cache
[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 ddrscott/stream_stats 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ddrscott/stream_stats:/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] 0d007ed7f17229d9583b25db6178a1abcaecdf000a0ebd06343df30a415d2414
[INFO] running `"docker" "start" "-a" "0d007ed7f17229d9583b25db6178a1abcaecdf000a0ebd06343df30a415d2414"`
[INFO] [stderr]    Compiling stream_stats v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:54:27
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn file_or_stdin() -> Box<io::Read> {
[INFO] [stderr]    |                           ^^^^^^^^ help: use `dyn`: `dyn io::Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "0d007ed7f17229d9583b25db6178a1abcaecdf000a0ebd06343df30a415d2414"`
[INFO] running `"docker" "rm" "-f" "0d007ed7f17229d9583b25db6178a1abcaecdf000a0ebd06343df30a415d2414"`
[INFO] [stdout] 0d007ed7f17229d9583b25db6178a1abcaecdf000a0ebd06343df30a415d2414
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ddrscott/stream_stats:/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] d10fb14c6c3c2938e35463636f71fc3d195cf5eb26eb53e10e68557235f3c4ae
[INFO] running `"docker" "start" "-a" "d10fb14c6c3c2938e35463636f71fc3d195cf5eb26eb53e10e68557235f3c4ae"`
[INFO] [stderr]    Compiling stream_stats v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:54:27
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn file_or_stdin() -> Box<io::Read> {
[INFO] [stderr]    |                           ^^^^^^^^ help: use `dyn`: `dyn io::Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `"docker" "inspect" "d10fb14c6c3c2938e35463636f71fc3d195cf5eb26eb53e10e68557235f3c4ae"`
[INFO] running `"docker" "rm" "-f" "d10fb14c6c3c2938e35463636f71fc3d195cf5eb26eb53e10e68557235f3c4ae"`
[INFO] [stdout] d10fb14c6c3c2938e35463636f71fc3d195cf5eb26eb53e10e68557235f3c4ae
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ddrscott/stream_stats:/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] 41dd869758f21ab588d28271a17d7a6a555a343ab73da5a0543549c26fe705d4
[INFO] running `"docker" "start" "-a" "41dd869758f21ab588d28271a17d7a6a555a343ab73da5a0543549c26fe705d4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/stream_stats-391e05da3da9a7d5
[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" "41dd869758f21ab588d28271a17d7a6a555a343ab73da5a0543549c26fe705d4"`
[INFO] running `"docker" "rm" "-f" "41dd869758f21ab588d28271a17d7a6a555a343ab73da5a0543549c26fe705d4"`
[INFO] [stdout] 41dd869758f21ab588d28271a17d7a6a555a343ab73da5a0543549c26fe705d4