[INFO] updating cached repository avowkind/prisoners_dilemma
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/avowkind/prisoners_dilemma
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/avowkind/prisoners_dilemma" "work/ex/beta-1.38-1/sources/1.37.0/gh/avowkind/prisoners_dilemma"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/avowkind/prisoners_dilemma'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/avowkind/prisoners_dilemma" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/avowkind/prisoners_dilemma"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/avowkind/prisoners_dilemma'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] daf1d7bf2703a2122cb64f859d05091fc72f0b51
[INFO] sha for GitHub repo avowkind/prisoners_dilemma: daf1d7bf2703a2122cb64f859d05091fc72f0b51
[INFO] validating manifest of avowkind/prisoners_dilemma 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 avowkind/prisoners_dilemma 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 avowkind/prisoners_dilemma
[INFO] finished frobbing avowkind/prisoners_dilemma
[INFO] frobbed toml for avowkind/prisoners_dilemma written to work/ex/beta-1.38-1/sources/1.37.0/gh/avowkind/prisoners_dilemma/Cargo.toml
[INFO] started frobbing avowkind/prisoners_dilemma
[INFO] finished frobbing avowkind/prisoners_dilemma
[INFO] frobbed toml for avowkind/prisoners_dilemma written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/avowkind/prisoners_dilemma/Cargo.toml
[INFO] crate avowkind/prisoners_dilemma 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 avowkind/prisoners_dilemma 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/avowkind/prisoners_dilemma:/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] 9f3db7086ca1bcb59b108c4c33a08bf24fcee7a16f34d58054ee3f00c84ba29d
[INFO] running `"docker" "start" "-a" "9f3db7086ca1bcb59b108c4c33a08bf24fcee7a16f34d58054ee3f00c84ba29d"`
[INFO] [stderr]    Compiling prisoners_dilemma v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/main.rs:13:26
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let strategies: Vec<&Strategy> =
[INFO] [stderr]    |                          ^^^^^^^^ help: use `dyn`: `dyn Strategy`
[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" "9f3db7086ca1bcb59b108c4c33a08bf24fcee7a16f34d58054ee3f00c84ba29d"`
[INFO] running `"docker" "rm" "-f" "9f3db7086ca1bcb59b108c4c33a08bf24fcee7a16f34d58054ee3f00c84ba29d"`
[INFO] [stdout] 9f3db7086ca1bcb59b108c4c33a08bf24fcee7a16f34d58054ee3f00c84ba29d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/avowkind/prisoners_dilemma:/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] 6447e2b20c26f62886be062cb90aee4504419622ac21c079381dd86eb34857ae
[INFO] running `"docker" "start" "-a" "6447e2b20c26f62886be062cb90aee4504419622ac21c079381dd86eb34857ae"`
[INFO] [stderr]    Compiling prisoners_dilemma v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/main.rs:13:26
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let strategies: Vec<&Strategy> =
[INFO] [stderr]    |                          ^^^^^^^^ help: use `dyn`: `dyn Strategy`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `"docker" "inspect" "6447e2b20c26f62886be062cb90aee4504419622ac21c079381dd86eb34857ae"`
[INFO] running `"docker" "rm" "-f" "6447e2b20c26f62886be062cb90aee4504419622ac21c079381dd86eb34857ae"`
[INFO] [stdout] 6447e2b20c26f62886be062cb90aee4504419622ac21c079381dd86eb34857ae
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/avowkind/prisoners_dilemma:/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] 303e68c9de6c752976bbe2f0d13d65ca55df8cda752cc9e84472d9b3eeaeb9a1
[INFO] running `"docker" "start" "-a" "303e68c9de6c752976bbe2f0d13d65ca55df8cda752cc9e84472d9b3eeaeb9a1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/prisoners_dilemma-2c4be985e77da690
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test choice::tests::test_choicepair ... ok
[INFO] [stdout] test strategy::tests::test_alternate1 ... ok
[INFO] [stdout] test history::tests::test_history ... ok
[INFO] [stdout] test tests::test_game ... ok
[INFO] [stdout] test strategy::tests::test_alternate2 ... ok
[INFO] [stdout] test strategy::tests::test_titfortat ... ok
[INFO] [stdout] test strategy::tests::test_always ... ok
[INFO] [stdout] test strategy::tests::test_never ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/main-cbea7b3cdee7149f
[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] [stderr]    Doc-tests prisoners_dilemma
[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" "303e68c9de6c752976bbe2f0d13d65ca55df8cda752cc9e84472d9b3eeaeb9a1"`
[INFO] running `"docker" "rm" "-f" "303e68c9de6c752976bbe2f0d13d65ca55df8cda752cc9e84472d9b3eeaeb9a1"`
[INFO] [stdout] 303e68c9de6c752976bbe2f0d13d65ca55df8cda752cc9e84472d9b3eeaeb9a1