[INFO] crate rurel 0.1.2 is already in cache
[INFO] extracting crate rurel 0.1.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/rurel/0.1.2
[INFO] extracting crate rurel 0.1.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rurel/0.1.2
[INFO] validating manifest of rurel-0.1.2 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 rurel-0.1.2 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 rurel-0.1.2
[INFO] removed 0 missing examples
[INFO] finished frobbing rurel-0.1.2
[INFO] frobbed toml for rurel-0.1.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/rurel/0.1.2/Cargo.toml
[INFO] started frobbing rurel-0.1.2
[INFO] removed 0 missing examples
[INFO] finished frobbing rurel-0.1.2
[INFO] frobbed toml for rurel-0.1.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rurel/0.1.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 rurel-0.1.2 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/reg/rurel/0.1.2:/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] d9d55b2218c9554e38d051f79bc2bf9a5bbdaba1dc03941fb1221d8c07ad5eb6
[INFO] running `"docker" "start" "-a" "d9d55b2218c9554e38d051f79bc2bf9a5bbdaba1dc03941fb1221d8c07ad5eb6"`
[INFO] [stderr]    Compiling rurel v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/strategy/explore/random.rs:20:39
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn pick_action(&self, agent: &mut Agent<S>) -> S::A {
[INFO] [stderr]    |                                       ^^^^^^^^ help: use `dyn`: `dyn Agent<S>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/strategy/explore/mod.rs:17:32
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn pick_action(&self, &mut Agent<S>) -> S::A;
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn Agent<S>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:124:30
[INFO] [stderr]     |
[INFO] [stderr] 124 |                  agent: &mut Agent<S>,
[INFO] [stderr]     |                              ^^^^^^^^ help: use `dyn`: `dyn Agent<S>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:125:38
[INFO] [stderr]     |
[INFO] [stderr] 125 |                  learning_strategy: &LearningStrategy<S>,
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LearningStrategy<S>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:126:45
[INFO] [stderr]     |
[INFO] [stderr] 126 |                  termination_strategy: &mut TerminationStrategy<S>,
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TerminationStrategy<S>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:127:41
[INFO] [stderr]     |
[INFO] [stderr] 127 |                  exploration_strategy: &ExplorationStrategy<S>)
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExplorationStrategy<S>`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `"docker" "inspect" "d9d55b2218c9554e38d051f79bc2bf9a5bbdaba1dc03941fb1221d8c07ad5eb6"`
[INFO] running `"docker" "rm" "-f" "d9d55b2218c9554e38d051f79bc2bf9a5bbdaba1dc03941fb1221d8c07ad5eb6"`
[INFO] [stdout] d9d55b2218c9554e38d051f79bc2bf9a5bbdaba1dc03941fb1221d8c07ad5eb6
[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/reg/rurel/0.1.2:/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] 60cb21ecc66bc4ccafcbcd40c24eb39d02a00a8c5bd716ab59e2019de014f150
[INFO] running `"docker" "start" "-a" "60cb21ecc66bc4ccafcbcd40c24eb39d02a00a8c5bd716ab59e2019de014f150"`
[INFO] [stderr]    Compiling rurel v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/strategy/explore/random.rs:20:39
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn pick_action(&self, agent: &mut Agent<S>) -> S::A {
[INFO] [stderr]    |                                       ^^^^^^^^ help: use `dyn`: `dyn Agent<S>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/strategy/explore/mod.rs:17:32
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn pick_action(&self, &mut Agent<S>) -> S::A;
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn Agent<S>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:124:30
[INFO] [stderr]     |
[INFO] [stderr] 124 |                  agent: &mut Agent<S>,
[INFO] [stderr]     |                              ^^^^^^^^ help: use `dyn`: `dyn Agent<S>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:125:38
[INFO] [stderr]     |
[INFO] [stderr] 125 |                  learning_strategy: &LearningStrategy<S>,
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn LearningStrategy<S>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:126:45
[INFO] [stderr]     |
[INFO] [stderr] 126 |                  termination_strategy: &mut TerminationStrategy<S>,
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn TerminationStrategy<S>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:127:41
[INFO] [stderr]     |
[INFO] [stderr] 127 |                  exploration_strategy: &ExplorationStrategy<S>)
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExplorationStrategy<S>`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "60cb21ecc66bc4ccafcbcd40c24eb39d02a00a8c5bd716ab59e2019de014f150"`
[INFO] running `"docker" "rm" "-f" "60cb21ecc66bc4ccafcbcd40c24eb39d02a00a8c5bd716ab59e2019de014f150"`
[INFO] [stdout] 60cb21ecc66bc4ccafcbcd40c24eb39d02a00a8c5bd716ab59e2019de014f150
[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/reg/rurel/0.1.2:/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] ca6a7648f5f3a8b070c005428bba56eac597f18e7488230317bb9e00cf9618f7
[INFO] running `"docker" "start" "-a" "ca6a7648f5f3a8b070c005428bba56eac597f18e7488230317bb9e00cf9618f7"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rurel-72fbaf7f4c370e58
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rurel
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 19) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "ca6a7648f5f3a8b070c005428bba56eac597f18e7488230317bb9e00cf9618f7"`
[INFO] running `"docker" "rm" "-f" "ca6a7648f5f3a8b070c005428bba56eac597f18e7488230317bb9e00cf9618f7"`
[INFO] [stdout] ca6a7648f5f3a8b070c005428bba56eac597f18e7488230317bb9e00cf9618f7