[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-1.38-1/sources/1.37.0/gh/cdouglass/morse-practice"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/cdouglass/morse-practice'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cdouglass/morse-practice" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cdouglass/morse-practice"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cdouglass/morse-practice 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 cdouglass/morse-practice
[INFO] finished frobbing cdouglass/morse-practice
[INFO] frobbed toml for cdouglass/morse-practice written to work/ex/beta-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "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 cdouglass/morse-practice 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/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 5c0c70c72e6444ca37486afe8973d5e1e40a885ad86282d297bd9a72fa9285de
[INFO] running `"docker" "start" "-a" "5c0c70c72e6444ca37486afe8973d5e1e40a885ad86282d297bd9a72fa9285de"`
[INFO] [stderr]    Compiling serde v1.0.29
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling serde_derive_internals v0.20.0
[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 24.27s
[INFO] running `"docker" "inspect" "5c0c70c72e6444ca37486afe8973d5e1e40a885ad86282d297bd9a72fa9285de"`
[INFO] running `"docker" "rm" "-f" "5c0c70c72e6444ca37486afe8973d5e1e40a885ad86282d297bd9a72fa9285de"`
[INFO] [stdout] 5c0c70c72e6444ca37486afe8973d5e1e40a885ad86282d297bd9a72fa9285de
[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/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] aeb70b19dd85003fbb75655554372708b50593602c00bf6b6cdfce3f65f37392
[INFO] running `"docker" "start" "-a" "aeb70b19dd85003fbb75655554372708b50593602c00bf6b6cdfce3f65f37392"`
[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 1.36s
[INFO] running `"docker" "inspect" "aeb70b19dd85003fbb75655554372708b50593602c00bf6b6cdfce3f65f37392"`
[INFO] running `"docker" "rm" "-f" "aeb70b19dd85003fbb75655554372708b50593602c00bf6b6cdfce3f65f37392"`
[INFO] [stdout] aeb70b19dd85003fbb75655554372708b50593602c00bf6b6cdfce3f65f37392
[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/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 64e666612bfe5dc157d5b6e372812bc57a414b562477f6732ded59b3716bb196
[INFO] running `"docker" "start" "-a" "64e666612bfe5dc157d5b6e372812bc57a414b562477f6732ded59b3716bb196"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.58s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/morse-4ebe74e903427eb1
[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" "64e666612bfe5dc157d5b6e372812bc57a414b562477f6732ded59b3716bb196"`
[INFO] running `"docker" "rm" "-f" "64e666612bfe5dc157d5b6e372812bc57a414b562477f6732ded59b3716bb196"`
[INFO] [stdout] 64e666612bfe5dc157d5b6e372812bc57a414b562477f6732ded59b3716bb196