[INFO] updating cached repository kgtkr/word-markov-gen
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kgtkr/word-markov-gen
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kgtkr/word-markov-gen" "work/ex/beta-1.38-1/sources/1.37.0/gh/kgtkr/word-markov-gen"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/kgtkr/word-markov-gen'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kgtkr/word-markov-gen" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kgtkr/word-markov-gen"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kgtkr/word-markov-gen'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f342227d55e1a91e8bf8f7d635b55fc38ff9af5a
[INFO] sha for GitHub repo kgtkr/word-markov-gen: f342227d55e1a91e8bf8f7d635b55fc38ff9af5a
[INFO] validating manifest of kgtkr/word-markov-gen 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 kgtkr/word-markov-gen 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 kgtkr/word-markov-gen
[INFO] finished frobbing kgtkr/word-markov-gen
[INFO] frobbed toml for kgtkr/word-markov-gen written to work/ex/beta-1.38-1/sources/1.37.0/gh/kgtkr/word-markov-gen/Cargo.toml
[INFO] started frobbing kgtkr/word-markov-gen
[INFO] finished frobbing kgtkr/word-markov-gen
[INFO] frobbed toml for kgtkr/word-markov-gen written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kgtkr/word-markov-gen/Cargo.toml
[INFO] crate kgtkr/word-markov-gen 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]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing kgtkr/word-markov-gen 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/kgtkr/word-markov-gen:/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] f3ef44e2242c8df4d2c39a256882d67ccccf6ade31ef871d8067624e9ebd9610
[INFO] running `"docker" "start" "-a" "f3ef44e2242c8df4d2c39a256882d67ccccf6ade31ef871d8067624e9ebd9610"`
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling getopts v0.2.19
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling serde_yaml v0.7.5
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]    Compiling markov v1.0.2
[INFO] [stderr]    Compiling word-markov-gen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/main.rs:4:29
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]   |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::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 48.50s
[INFO] running `"docker" "inspect" "f3ef44e2242c8df4d2c39a256882d67ccccf6ade31ef871d8067624e9ebd9610"`
[INFO] running `"docker" "rm" "-f" "f3ef44e2242c8df4d2c39a256882d67ccccf6ade31ef871d8067624e9ebd9610"`
[INFO] [stdout] f3ef44e2242c8df4d2c39a256882d67ccccf6ade31ef871d8067624e9ebd9610
[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/kgtkr/word-markov-gen:/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] 38f317c592ed7ce5d115c7bdb31bbcfc9ca5672f65bac0d8af75d37024a89781
[INFO] running `"docker" "start" "-a" "38f317c592ed7ce5d115c7bdb31bbcfc9ca5672f65bac0d8af75d37024a89781"`
[INFO] [stderr]    Compiling word-markov-gen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/main.rs:4:29
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]   |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::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 1.06s
[INFO] running `"docker" "inspect" "38f317c592ed7ce5d115c7bdb31bbcfc9ca5672f65bac0d8af75d37024a89781"`
[INFO] running `"docker" "rm" "-f" "38f317c592ed7ce5d115c7bdb31bbcfc9ca5672f65bac0d8af75d37024a89781"`
[INFO] [stdout] 38f317c592ed7ce5d115c7bdb31bbcfc9ca5672f65bac0d8af75d37024a89781
[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/kgtkr/word-markov-gen:/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] 35c68ff8b2fe8a6df24c7e9b0824ee1d7f94d8e233d5e0e0c130fe0dfa2b664f
[INFO] running `"docker" "start" "-a" "35c68ff8b2fe8a6df24c7e9b0824ee1d7f94d8e233d5e0e0c130fe0dfa2b664f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/word_markov_gen-a4986c0ec1735008
[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" "35c68ff8b2fe8a6df24c7e9b0824ee1d7f94d8e233d5e0e0c130fe0dfa2b664f"`
[INFO] running `"docker" "rm" "-f" "35c68ff8b2fe8a6df24c7e9b0824ee1d7f94d8e233d5e0e0c130fe0dfa2b664f"`
[INFO] [stdout] 35c68ff8b2fe8a6df24c7e9b0824ee1d7f94d8e233d5e0e0c130fe0dfa2b664f