[INFO] updating cached repository kemingy/spelling_corrector
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kemingy/spelling_corrector
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kemingy/spelling_corrector" "work/ex/beta-1.38-1/sources/1.37.0/gh/kemingy/spelling_corrector"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/kemingy/spelling_corrector'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kemingy/spelling_corrector" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kemingy/spelling_corrector"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kemingy/spelling_corrector'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e30233540d4554b6ea99f7401b0b8ba5b5206a64
[INFO] sha for GitHub repo kemingy/spelling_corrector: e30233540d4554b6ea99f7401b0b8ba5b5206a64
[INFO] validating manifest of kemingy/spelling_corrector 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 kemingy/spelling_corrector 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 kemingy/spelling_corrector
[INFO] finished frobbing kemingy/spelling_corrector
[INFO] frobbed toml for kemingy/spelling_corrector written to work/ex/beta-1.38-1/sources/1.37.0/gh/kemingy/spelling_corrector/Cargo.toml
[INFO] started frobbing kemingy/spelling_corrector
[INFO] finished frobbing kemingy/spelling_corrector
[INFO] frobbed toml for kemingy/spelling_corrector written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kemingy/spelling_corrector/Cargo.toml
[INFO] crate kemingy/spelling_corrector 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 kemingy/spelling_corrector 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/kemingy/spelling_corrector:/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] 4a34211eddeb2b0ef7ce29d08260ab1acecb8c9667b73349db06467d8328ca1e
[INFO] running `"docker" "start" "-a" "4a34211eddeb2b0ef7ce29d08260ab1acecb8c9667b73349db06467d8328ca1e"`
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.0.1
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.6.5
[INFO] [stderr]    Compiling hashbrown v0.1.8
[INFO] [stderr]    Compiling spelling_corrector v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:21:54
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn new(filepath: &str) -> Result<Dictionary, Box<error::Error>> {
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.39s
[INFO] running `"docker" "inspect" "4a34211eddeb2b0ef7ce29d08260ab1acecb8c9667b73349db06467d8328ca1e"`
[INFO] running `"docker" "rm" "-f" "4a34211eddeb2b0ef7ce29d08260ab1acecb8c9667b73349db06467d8328ca1e"`
[INFO] [stdout] 4a34211eddeb2b0ef7ce29d08260ab1acecb8c9667b73349db06467d8328ca1e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/kemingy/spelling_corrector:/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] 2944b5289afa69dbc9021a1d41f29e056b1d03a58695d500558ecafd0cd54241
[INFO] running `"docker" "start" "-a" "2944b5289afa69dbc9021a1d41f29e056b1d03a58695d500558ecafd0cd54241"`
[INFO] [stderr]    Compiling spelling_corrector v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:21:54
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn new(filepath: &str) -> Result<Dictionary, Box<error::Error>> {
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "2944b5289afa69dbc9021a1d41f29e056b1d03a58695d500558ecafd0cd54241"`
[INFO] running `"docker" "rm" "-f" "2944b5289afa69dbc9021a1d41f29e056b1d03a58695d500558ecafd0cd54241"`
[INFO] [stdout] 2944b5289afa69dbc9021a1d41f29e056b1d03a58695d500558ecafd0cd54241
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/kemingy/spelling_corrector:/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] 15927853df1cd2ea7422bccffab72e81167edb4d93fe456cb8c56afa9d56d913
[INFO] running `"docker" "start" "-a" "15927853df1cd2ea7422bccffab72e81167edb4d93fe456cb8c56afa9d56d913"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/spelling_corrector-3890bc12e9b57720
[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" "15927853df1cd2ea7422bccffab72e81167edb4d93fe456cb8c56afa9d56d913"`
[INFO] running `"docker" "rm" "-f" "15927853df1cd2ea7422bccffab72e81167edb4d93fe456cb8c56afa9d56d913"`
[INFO] [stdout] 15927853df1cd2ea7422bccffab72e81167edb4d93fe456cb8c56afa9d56d913