[INFO] cloning repository https://github.com/Benestar/rust-model-checker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Benestar/rust-model-checker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenestar%2Frust-model-checker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenestar%2Frust-model-checker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b78e96efaa5de18e95e5cfcd546ef98512bb2b8d
[INFO] testing Benestar/rust-model-checker against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenestar%2Frust-model-checker" "/workspace/builds/worker-117/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-117/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Benestar/rust-model-checker on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Benestar/rust-model-checker
[INFO] finished tweaking git repo https://github.com/Benestar/rust-model-checker
[INFO] tweaked toml for git repo https://github.com/Benestar/rust-model-checker written to /workspace/builds/worker-117/source/Cargo.toml
[INFO] crate git repo https://github.com/Benestar/rust-model-checker already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd9eec818bea729725d64dce87544fdfd5b2508db794d006707c5f314fda6c5f
[INFO] running `Command { std: "docker" "start" "-a" "fd9eec818bea729725d64dce87544fdfd5b2508db794d006707c5f314fda6c5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd9eec818bea729725d64dce87544fdfd5b2508db794d006707c5f314fda6c5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd9eec818bea729725d64dce87544fdfd5b2508db794d006707c5f314fda6c5f", kill_on_drop: false }`
[INFO] [stdout] fd9eec818bea729725d64dce87544fdfd5b2508db794d006707c5f314fda6c5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2116fba633d84476b0cd4e5159d9a7be920b8b03723eb1ee4ce7634ff691ccb0
[INFO] running `Command { std: "docker" "start" "-a" "2116fba633d84476b0cd4e5159d9a7be920b8b03723eb1ee4ce7634ff691ccb0", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-model-checker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/buechi.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 |     trans: Box<Fn(&Q, &S) -> HashSet<Q>>,
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 -     trans: Box<Fn(&Q, &S) -> HashSet<Q>>,
[INFO] [stdout] 6 +     trans: Box<dyn Fn(&Q, &S) -> HashSet<Q>>,
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/buechi.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 |     accepting: Box<Fn(&Q) -> bool>,
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 7 -     accepting: Box<Fn(&Q) -> bool>,
[INFO] [stdout] 7 +     accepting: Box<dyn Fn(&Q) -> bool>,
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `initial`
[INFO] [stdout]   --> src/buechi.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     initial: HashSet<Q>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `trans`
[INFO] [stdout]   --> src/buechi.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     trans: HashSet<(Q, S, Q)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `accepting`
[INFO] [stdout]   --> src/buechi.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     accepting: HashSet<Q>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.02s
[INFO] running `Command { std: "docker" "inspect" "2116fba633d84476b0cd4e5159d9a7be920b8b03723eb1ee4ce7634ff691ccb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2116fba633d84476b0cd4e5159d9a7be920b8b03723eb1ee4ce7634ff691ccb0", kill_on_drop: false }`
[INFO] [stdout] 2116fba633d84476b0cd4e5159d9a7be920b8b03723eb1ee4ce7634ff691ccb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6957d5d6633f24cf30c7a55f360facd3ff09f131a8c23e69006ed39b339b9de
[INFO] running `Command { std: "docker" "start" "-a" "a6957d5d6633f24cf30c7a55f360facd3ff09f131a8c23e69006ed39b339b9de", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/buechi.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 |     trans: Box<Fn(&Q, &S) -> HashSet<Q>>,
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 -     trans: Box<Fn(&Q, &S) -> HashSet<Q>>,
[INFO] [stdout] 6 +     trans: Box<dyn Fn(&Q, &S) -> HashSet<Q>>,
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rust-model-checker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/buechi.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 |     accepting: Box<Fn(&Q) -> bool>,
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 7 -     accepting: Box<Fn(&Q) -> bool>,
[INFO] [stdout] 7 +     accepting: Box<dyn Fn(&Q) -> bool>,
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `initial`
[INFO] [stdout]   --> src/buechi.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     initial: HashSet<Q>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `trans`
[INFO] [stdout]   --> src/buechi.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     trans: HashSet<(Q, S, Q)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `accepting`
[INFO] [stdout]   --> src/buechi.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     accepting: HashSet<Q>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/buechi.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 |     trans: Box<Fn(&Q, &S) -> HashSet<Q>>,
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 -     trans: Box<Fn(&Q, &S) -> HashSet<Q>>,
[INFO] [stdout] 6 +     trans: Box<dyn Fn(&Q, &S) -> HashSet<Q>>,
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/buechi.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 |     accepting: Box<Fn(&Q) -> bool>,
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 7 -     accepting: Box<Fn(&Q) -> bool>,
[INFO] [stdout] 7 +     accepting: Box<dyn Fn(&Q) -> bool>,
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `initial`
[INFO] [stdout]   --> src/buechi.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     initial: HashSet<Q>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `trans`
[INFO] [stdout]   --> src/buechi.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     trans: HashSet<(Q, S, Q)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `accepting`
[INFO] [stdout]   --> src/buechi.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     accepting: HashSet<Q>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `Command { std: "docker" "inspect" "a6957d5d6633f24cf30c7a55f360facd3ff09f131a8c23e69006ed39b339b9de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6957d5d6633f24cf30c7a55f360facd3ff09f131a8c23e69006ed39b339b9de", kill_on_drop: false }`
[INFO] [stdout] a6957d5d6633f24cf30c7a55f360facd3ff09f131a8c23e69006ed39b339b9de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0f301c9265df77575a665d3fee07ce82829d747ff21e3d37d8302dd170e45148
[INFO] running `Command { std: "docker" "start" "-a" "0f301c9265df77575a665d3fee07ce82829d747ff21e3d37d8302dd170e45148", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] running 5 tests
[INFO] [stderr]  --> src/buechi.rs:6:16
[INFO] [stdout] test ltl::lexer::tests::test_lexer ... ok
[INFO] [stderr]   |
[INFO] [stdout] test ltl::parser::tests::test_parse ... ok
[INFO] [stderr] 6 |     trans: Box<Fn(&Q, &S) -> HashSet<Q>>,
[INFO] [stdout] test ltl::tests::ltl_fmt ... ok
[INFO] [stderr]   |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] test ltl::tests::ltl_nnf_subformulas ... ok
[INFO] [stderr]   |
[INFO] [stdout] test ltl::tests::ltl_subformulas ... ok
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stderr] help: use `dyn`
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] running 0 tests
[INFO] [stderr] 6 -     trans: Box<Fn(&Q, &S) -> HashSet<Q>>,
[INFO] [stdout] 
[INFO] [stderr] 6 +     trans: Box<dyn Fn(&Q, &S) -> HashSet<Q>>,
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   | 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/buechi.rs:7:20
[INFO] [stderr]   |
[INFO] [stderr] 7 |     accepting: Box<Fn(&Q) -> bool>,
[INFO] [stderr]   |                    ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 7 -     accepting: Box<Fn(&Q) -> bool>,
[INFO] [stderr] 7 +     accepting: Box<dyn Fn(&Q) -> bool>,
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `initial`
[INFO] [stderr]   --> src/buechi.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     initial: HashSet<Q>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `trans`
[INFO] [stderr]   --> src/buechi.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     trans: HashSet<(Q, S, Q)>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `accepting`
[INFO] [stderr]   --> src/buechi.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     accepting: HashSet<Q>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-model-checker` (lib) generated 5 warnings
[INFO] [stderr] warning: `rust-model-checker` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 20.33s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_model_checker-26cd9909331bf20f)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/nnf-cf0e7b2376a3e3db)
[INFO] [stderr]    Doc-tests rust-model-checker
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0f301c9265df77575a665d3fee07ce82829d747ff21e3d37d8302dd170e45148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f301c9265df77575a665d3fee07ce82829d747ff21e3d37d8302dd170e45148", kill_on_drop: false }`
[INFO] [stdout] 0f301c9265df77575a665d3fee07ce82829d747ff21e3d37d8302dd170e45148