[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#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenestar%2Frust-model-checker" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Benestar/rust-model-checker on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "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-9/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" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bddb0c4a2945ee95fde5117c717bbf72b5c8a16e0873ba414e85d45b3283ab66
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bddb0c4a2945ee95fde5117c717bbf72b5c8a16e0873ba414e85d45b3283ab66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bddb0c4a2945ee95fde5117c717bbf72b5c8a16e0873ba414e85d45b3283ab66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bddb0c4a2945ee95fde5117c717bbf72b5c8a16e0873ba414e85d45b3283ab66", kill_on_drop: false }`
[INFO] [stdout] bddb0c4a2945ee95fde5117c717bbf72b5c8a16e0873ba414e85d45b3283ab66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e2fd997d7b6284e71474f9d59461a1fa04b34533ded74543f7cc7f83ed8e3d8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9e2fd997d7b6284e71474f9d59461a1fa04b34533ded74543f7cc7f83ed8e3d8", 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]   |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Q, &S) -> HashSet<Q>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[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]   |                    ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Q) -> bool`
[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]   |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Q, &S) -> HashSet<Q>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[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]   |                    ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Q) -> bool`
[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: 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: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "9e2fd997d7b6284e71474f9d59461a1fa04b34533ded74543f7cc7f83ed8e3d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e2fd997d7b6284e71474f9d59461a1fa04b34533ded74543f7cc7f83ed8e3d8", kill_on_drop: false }`
[INFO] [stdout] 9e2fd997d7b6284e71474f9d59461a1fa04b34533ded74543f7cc7f83ed8e3d8