[INFO] crate stackbt_automata_impl 0.1.2 is already in cache
[INFO] extracting crate stackbt_automata_impl 0.1.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/stackbt_automata_impl/0.1.2
[INFO] extracting crate stackbt_automata_impl 0.1.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/stackbt_automata_impl/0.1.2
[INFO] validating manifest of stackbt_automata_impl-0.1.2 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of stackbt_automata_impl-0.1.2 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing stackbt_automata_impl-0.1.2
[INFO] finished frobbing stackbt_automata_impl-0.1.2
[INFO] frobbed toml for stackbt_automata_impl-0.1.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/stackbt_automata_impl/0.1.2/Cargo.toml
[INFO] started frobbing stackbt_automata_impl-0.1.2
[INFO] finished frobbing stackbt_automata_impl-0.1.2
[INFO] frobbed toml for stackbt_automata_impl-0.1.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/stackbt_automata_impl/0.1.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing stackbt_automata_impl-0.1.2 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/stackbt_automata_impl/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 95c158cb8feb788c46732e4df74db15595b1f487fcaecfbf2aedb6dfa7d19f7f
[INFO] running `"docker" "start" "-a" "95c158cb8feb788c46732e4df74db15595b1f487fcaecfbf2aedb6dfa7d19f7f"`
[INFO] [stderr]    Compiling stackbt_automata_impl v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/automaton.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let mut this = self;
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `"docker" "inspect" "95c158cb8feb788c46732e4df74db15595b1f487fcaecfbf2aedb6dfa7d19f7f"`
[INFO] running `"docker" "rm" "-f" "95c158cb8feb788c46732e4df74db15595b1f487fcaecfbf2aedb6dfa7d19f7f"`
[INFO] [stdout] 95c158cb8feb788c46732e4df74db15595b1f487fcaecfbf2aedb6dfa7d19f7f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/stackbt_automata_impl/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 43f336d1272caf6973655e0d5656627926942bc6c2d7d46db713e5c3dbf1ae44
[INFO] running `"docker" "start" "-a" "43f336d1272caf6973655e0d5656627926942bc6c2d7d46db713e5c3dbf1ae44"`
[INFO] [stderr]    Compiling stackbt_automata_impl v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `state`
[INFO] [stderr]    --> src/map_wrappers.rs:375:30
[INFO] [stderr]     |
[INFO] [stderr] 375 |         fn step(input: &i64, state: &mut ()) -> i64 {
[INFO] [stderr]     |                              ^^^^^ help: consider prefixing with an underscore: `_state`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]    --> src/map_wrappers.rs:431:17
[INFO] [stderr]     |
[INFO] [stderr] 431 |         fn step(input: &i64, state: &mut i64) -> i64{
[INFO] [stderr]     |                 ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/automaton.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let mut this = self;
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `"docker" "inspect" "43f336d1272caf6973655e0d5656627926942bc6c2d7d46db713e5c3dbf1ae44"`
[INFO] running `"docker" "rm" "-f" "43f336d1272caf6973655e0d5656627926942bc6c2d7d46db713e5c3dbf1ae44"`
[INFO] [stdout] 43f336d1272caf6973655e0d5656627926942bc6c2d7d46db713e5c3dbf1ae44
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/stackbt_automata_impl/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 3601bfe77718f41a90022e02c781a8840fef42fbb520e06a1e1981c67d9cc62a
[INFO] running `"docker" "start" "-a" "3601bfe77718f41a90022e02c781a8840fef42fbb520e06a1e1981c67d9cc62a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/stackbt_automata_impl-53a8da8b1b05d86d
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test automaton::tests::as_fnmut_test ... ok
[INFO] [stdout] test automaton::tests::box_into_fnmut_test ... ok
[INFO] [stdout] test internal_state_machine::tests::check_def ... ok
[INFO] [stdout] test map_wrappers::tests::input_map_test ... ok
[INFO] [stdout] test automaton::tests::into_fnmut_test ... ok
[INFO] [stdout] test pushdown_automaton::test::check_def ... ok
[INFO] [stdout] test ref_state_machine::tests::check_def ... ok
[INFO] [stdout] test map_wrappers::tests::output_map_test ... ok
[INFO] [stdout] test dual_state_machine::tests::check_def ... ok
[INFO] [stdout] test map_wrappers::tests::custom_constructor_test ... ok
[INFO] [stdout] test map_wrappers::tests::lazy_constructor_test ... ok
[INFO] [stderr]    Doc-tests stackbt_automata_impl
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/automaton.rs - automaton::Automaton (line 9) ... ok
[INFO] [stdout] test src/ref_state_machine.rs - ref_state_machine::RefStateMachine (line 21) ... ok
[INFO] [stdout] test src/internal_state_machine.rs - internal_state_machine::InternalStateMachine (line 26) ... ok
[INFO] [stdout] test src/lib.rs - map_wrappers (line 21) ... ok
[INFO] [stdout] test src/dual_state_machine.rs - dual_state_machine::DualStateMachine (line 24) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "3601bfe77718f41a90022e02c781a8840fef42fbb520e06a1e1981c67d9cc62a"`
[INFO] running `"docker" "rm" "-f" "3601bfe77718f41a90022e02c781a8840fef42fbb520e06a1e1981c67d9cc62a"`
[INFO] [stdout] 3601bfe77718f41a90022e02c781a8840fef42fbb520e06a1e1981c67d9cc62a