[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] checking Benestar/rust-model-checker against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenestar%2Frust-model-checker" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Benestar/rust-model-checker on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "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-4-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 303d35810bfebd993e8eb5713b20c7df59262ef3c3328bd97ca61870062c477a
[INFO] running `Command { std: "docker" "start" "-a" "303d35810bfebd993e8eb5713b20c7df59262ef3c3328bd97ca61870062c477a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "303d35810bfebd993e8eb5713b20c7df59262ef3c3328bd97ca61870062c477a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "303d35810bfebd993e8eb5713b20c7df59262ef3c3328bd97ca61870062c477a", kill_on_drop: false }`
[INFO] [stdout] 303d35810bfebd993e8eb5713b20c7df59262ef3c3328bd97ca61870062c477a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a820a507c18227686a82d6a4347d022331aaaea1006974c57c42063960c7b5e7
[INFO] running `Command { std: "docker" "start" "-a" "a820a507c18227686a82d6a4347d022331aaaea1006974c57c42063960c7b5e7", kill_on_drop: false }`
[INFO] [stderr]     Checking 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]   = 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]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 7 |     accepting: Box<dyn Fn(&Q) -> bool>,
[INFO] [stdout]   |                    +++
[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]   = 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]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[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: if this is an object-safe trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 7 |     accepting: Box<dyn Fn(&Q) -> bool>,
[INFO] [stdout]   |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `initial`, `trans`, and `accepting` are never read
[INFO] [stdout]   --> src/buechi.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct ExplicitNBA<Q, S> {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 11 |     initial: HashSet<Q>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 12 |     trans: HashSet<(Q, S, Q)>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 13 |     accepting: HashSet<Q>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `initial`, `trans`, and `accepting` are never read
[INFO] [stdout]   --> src/buechi.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct ExplicitNBA<Q, S> {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 11 |     initial: HashSet<Q>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 12 |     trans: HashSet<(Q, S, Q)>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 13 |     accepting: HashSet<Q>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "a820a507c18227686a82d6a4347d022331aaaea1006974c57c42063960c7b5e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a820a507c18227686a82d6a4347d022331aaaea1006974c57c42063960c7b5e7", kill_on_drop: false }`
[INFO] [stdout] a820a507c18227686a82d6a4347d022331aaaea1006974c57c42063960c7b5e7