[INFO] updating cached repository BookOwl/rusty-markov
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/BookOwl/rusty-markov
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/BookOwl/rusty-markov" "work/ex/beta-1.38-1/sources/1.37.0/gh/BookOwl/rusty-markov"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/BookOwl/rusty-markov'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/BookOwl/rusty-markov" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/BookOwl/rusty-markov"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/BookOwl/rusty-markov'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5afc737327be960a072b240dcb8aee0b94066df2
[INFO] sha for GitHub repo BookOwl/rusty-markov: 5afc737327be960a072b240dcb8aee0b94066df2
[INFO] validating manifest of BookOwl/rusty-markov 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 BookOwl/rusty-markov 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 BookOwl/rusty-markov
[INFO] finished frobbing BookOwl/rusty-markov
[INFO] frobbed toml for BookOwl/rusty-markov written to work/ex/beta-1.38-1/sources/1.37.0/gh/BookOwl/rusty-markov/Cargo.toml
[INFO] started frobbing BookOwl/rusty-markov
[INFO] finished frobbing BookOwl/rusty-markov
[INFO] frobbed toml for BookOwl/rusty-markov written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/BookOwl/rusty-markov/Cargo.toml
[INFO] crate BookOwl/rusty-markov 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 BookOwl/rusty-markov 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/BookOwl/rusty-markov:/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] 2c158c6b9daa15b779e0eb38917a0ea30a5dc3c485a9b335cbabd4241150f93e
[INFO] running `"docker" "start" "-a" "2c158c6b9daa15b779e0eb38917a0ea30a5dc3c485a9b335cbabd4241150f93e"`
[INFO] [stderr]    Compiling strsim v0.5.2
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling clap v2.19.1
[INFO] [stderr]    Compiling markov v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: missing fragment specifier
[INFO] [stderr]   --> <::clap::macros::clap_app macros>:84:47
[INFO] [stderr]    |
[INFO] [stderr] 84 | @ arg ( $ arg : expr ) $ modes : tt ! $ ident $ ( $ tail : tt ) * ) => {
[INFO] [stderr]    |                                               ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(missing_fragment_specifier)] on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #40107 <https://github.com/rust-lang/rust/issues/40107>
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.84s
[INFO] running `"docker" "inspect" "2c158c6b9daa15b779e0eb38917a0ea30a5dc3c485a9b335cbabd4241150f93e"`
[INFO] running `"docker" "rm" "-f" "2c158c6b9daa15b779e0eb38917a0ea30a5dc3c485a9b335cbabd4241150f93e"`
[INFO] [stdout] 2c158c6b9daa15b779e0eb38917a0ea30a5dc3c485a9b335cbabd4241150f93e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/BookOwl/rusty-markov:/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] 8e1f1b8c912410229c53d8af0efc6e4c79e58a0b8892819c5e6bc3b8255f7806
[INFO] running `"docker" "start" "-a" "8e1f1b8c912410229c53d8af0efc6e4c79e58a0b8892819c5e6bc3b8255f7806"`
[INFO] [stderr]    Compiling markov v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: missing fragment specifier
[INFO] [stderr]   --> <::clap::macros::clap_app macros>:84:47
[INFO] [stderr]    |
[INFO] [stderr] 84 | @ arg ( $ arg : expr ) $ modes : tt ! $ ident $ ( $ tail : tt ) * ) => {
[INFO] [stderr]    |                                               ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(missing_fragment_specifier)] on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #40107 <https://github.com/rust-lang/rust/issues/40107>
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "8e1f1b8c912410229c53d8af0efc6e4c79e58a0b8892819c5e6bc3b8255f7806"`
[INFO] running `"docker" "rm" "-f" "8e1f1b8c912410229c53d8af0efc6e4c79e58a0b8892819c5e6bc3b8255f7806"`
[INFO] [stdout] 8e1f1b8c912410229c53d8af0efc6e4c79e58a0b8892819c5e6bc3b8255f7806
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/BookOwl/rusty-markov:/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] 4d0fb20cb8bd2505df8b1b28d087c0427298235aebd3cb91a6437f4b6b16448d
[INFO] running `"docker" "start" "-a" "4d0fb20cb8bd2505df8b1b28d087c0427298235aebd3cb91a6437f4b6b16448d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/markov-8db0bcb64800d2b0
[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" "4d0fb20cb8bd2505df8b1b28d087c0427298235aebd3cb91a6437f4b6b16448d"`
[INFO] running `"docker" "rm" "-f" "4d0fb20cb8bd2505df8b1b28d087c0427298235aebd3cb91a6437f4b6b16448d"`
[INFO] [stdout] 4d0fb20cb8bd2505df8b1b28d087c0427298235aebd3cb91a6437f4b6b16448d