[INFO] updating cached repository cdouglass/morse-practice
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cdouglass/morse-practice
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cdouglass/morse-practice" "work/ex/beta-1.37-6/sources/1.36.0/gh/cdouglass/morse-practice"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/cdouglass/morse-practice'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cdouglass/morse-practice" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/cdouglass/morse-practice"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/cdouglass/morse-practice'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1d9c32e9f1391fc62e7e773bde29064435efa732
[INFO] sha for GitHub repo cdouglass/morse-practice: 1d9c32e9f1391fc62e7e773bde29064435efa732
[INFO] validating manifest of cdouglass/morse-practice 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 cdouglass/morse-practice 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 cdouglass/morse-practice
[INFO] finished frobbing cdouglass/morse-practice
[INFO] frobbed toml for cdouglass/morse-practice written to work/ex/beta-1.37-6/sources/1.36.0/gh/cdouglass/morse-practice/Cargo.toml
[INFO] started frobbing cdouglass/morse-practice
[INFO] finished frobbing cdouglass/morse-practice
[INFO] frobbed toml for cdouglass/morse-practice written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/cdouglass/morse-practice/Cargo.toml
[INFO] crate cdouglass/morse-practice already has a lockfile, it will not be regenerated
[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 cdouglass/morse-practice 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-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/cdouglass/morse-practice:/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] c549598444d392f3eddbbd652279b99eaa741796d90a1e70f3fd481892a614c5
[INFO] running `"docker" "start" "-a" "c549598444d392f3eddbbd652279b99eaa741796d90a1e70f3fd481892a614c5"`
[INFO] [stderr]    Compiling serde v1.0.29
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling serde_derive_internals v0.20.0
[INFO] [stderr]    Compiling regex v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.29
[INFO] [stderr]    Compiling docopt v0.8.3
[INFO] [stderr]    Compiling morse v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/words.rs:23:20
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub words: Box<Iterator<Item=String>>
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=String>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.74s
[INFO] running `"docker" "inspect" "c549598444d392f3eddbbd652279b99eaa741796d90a1e70f3fd481892a614c5"`
[INFO] running `"docker" "rm" "-f" "c549598444d392f3eddbbd652279b99eaa741796d90a1e70f3fd481892a614c5"`
[INFO] [stdout] c549598444d392f3eddbbd652279b99eaa741796d90a1e70f3fd481892a614c5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/cdouglass/morse-practice:/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] 6408abaad224dc24ecb189e0877e229738daa7c4d207e2920180425c72beefd2
[INFO] running `"docker" "start" "-a" "6408abaad224dc24ecb189e0877e229738daa7c4d207e2920180425c72beefd2"`
[INFO] [stderr]    Compiling morse v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/words.rs:23:20
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub words: Box<Iterator<Item=String>>
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=String>`
[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" "6408abaad224dc24ecb189e0877e229738daa7c4d207e2920180425c72beefd2"`
[INFO] running `"docker" "rm" "-f" "6408abaad224dc24ecb189e0877e229738daa7c4d207e2920180425c72beefd2"`
[INFO] [stdout] 6408abaad224dc24ecb189e0877e229738daa7c4d207e2920180425c72beefd2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/cdouglass/morse-practice:/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] e42804b27379ec9ee275a771452b6623efab3846ea9a37375b5ecb2eac6fe0aa
[INFO] running `"docker" "start" "-a" "e42804b27379ec9ee275a771452b6623efab3846ea9a37375b5ecb2eac6fe0aa"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/morse-96494ffb21ed15ef
[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" "e42804b27379ec9ee275a771452b6623efab3846ea9a37375b5ecb2eac6fe0aa"`
[INFO] running `"docker" "rm" "-f" "e42804b27379ec9ee275a771452b6623efab3846ea9a37375b5ecb2eac6fe0aa"`
[INFO] [stdout] e42804b27379ec9ee275a771452b6623efab3846ea9a37375b5ecb2eac6fe0aa