[INFO] updating cached repository https://github.com/aslpavel/ukanren-rs-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5ea4ce91bfc625d5d13dccc2baec3e1c0f501869
[INFO] testing aslpavel/ukanren-rs-example against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faslpavel%2Fukanren-rs-example" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aslpavel/ukanren-rs-example on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aslpavel/ukanren-rs-example
[INFO] finished tweaking git repo https://github.com/aslpavel/ukanren-rs-example
[INFO] tweaked toml for git repo https://github.com/aslpavel/ukanren-rs-example written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/aslpavel/ukanren-rs-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 323cfc503a80ef6b6ed6174140570cc470df653246782bb7986c6c71f783c61d
[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" "323cfc503a80ef6b6ed6174140570cc470df653246782bb7986c6c71f783c61d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "323cfc503a80ef6b6ed6174140570cc470df653246782bb7986c6c71f783c61d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "323cfc503a80ef6b6ed6174140570cc470df653246782bb7986c6c71f783c61d", kill_on_drop: false }`
[INFO] [stdout] 323cfc503a80ef6b6ed6174140570cc470df653246782bb7986c6c71f783c61d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5e551611f525bc9dbd911bf985ce3b94c1e743acd948f51852e7ac855e8c8c3f
[INFO] running `Command { std: "docker" "start" "-a" "5e551611f525bc9dbd911bf985ce3b94c1e743acd948f51852e7ac855e8c8c3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling uknaren v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:214:15
[INFO] [stdout]     |
[INFO] [stdout] 214 |     iter: Box<Iterator<Item = T>>,
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = T>`
[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/lib.rs:252:25
[INFO] [stdout]     |
[INFO] [stdout] 252 |     type IntoIter = Box<Iterator<Item = T>>;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:262:20
[INFO] [stdout]     |
[INFO] [stdout] 262 | pub type Goal = Rc<Fn(State) -> Stream<State>>;
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(State) -> Stream<State>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `Command { std: "docker" "inspect" "5e551611f525bc9dbd911bf985ce3b94c1e743acd948f51852e7ac855e8c8c3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e551611f525bc9dbd911bf985ce3b94c1e743acd948f51852e7ac855e8c8c3f", kill_on_drop: false }`
[INFO] [stdout] 5e551611f525bc9dbd911bf985ce3b94c1e743acd948f51852e7ac855e8c8c3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7cce905f90ebf38276898cbea853f9ff9f86317baa43be873a0c76139796742
[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" "d7cce905f90ebf38276898cbea853f9ff9f86317baa43be873a0c76139796742", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:214:15
[INFO] [stdout]     |
[INFO] [stdout] 214 |     iter: Box<Iterator<Item = T>>,
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling uknaren v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:252:25
[INFO] [stdout]     |
[INFO] [stdout] 252 |     type IntoIter = Box<Iterator<Item = T>>;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:262:20
[INFO] [stdout]     |
[INFO] [stdout] 262 | pub type Goal = Rc<Fn(State) -> Stream<State>>;
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(State) -> Stream<State>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:214:15
[INFO] [stdout]     |
[INFO] [stdout] 214 |     iter: Box<Iterator<Item = T>>,
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = T>`
[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/lib.rs:252:25
[INFO] [stdout]     |
[INFO] [stdout] 252 |     type IntoIter = Box<Iterator<Item = T>>;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:262:20
[INFO] [stdout]     |
[INFO] [stdout] 262 | pub type Goal = Rc<Fn(State) -> Stream<State>>;
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(State) -> Stream<State>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `Command { std: "docker" "inspect" "d7cce905f90ebf38276898cbea853f9ff9f86317baa43be873a0c76139796742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7cce905f90ebf38276898cbea853f9ff9f86317baa43be873a0c76139796742", kill_on_drop: false }`
[INFO] [stdout] d7cce905f90ebf38276898cbea853f9ff9f86317baa43be873a0c76139796742
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7327570cfb77414eeb856d65d9db5fba86da784c006456e653af1263b1f87087
[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" "7327570cfb77414eeb856d65d9db5fba86da784c006456e653af1263b1f87087", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:214:15
[INFO] [stderr]     |
[INFO] [stderr] 214 |     iter: Box<Iterator<Item = T>>,
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = T>`
[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/lib.rs:252:25
[INFO] [stderr]     |
[INFO] [stderr] 252 |     type IntoIter = Box<Iterator<Item = T>>;
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:262:20
[INFO] [stderr]     |
[INFO] [stderr] 262 | pub type Goal = Rc<Fn(State) -> Stream<State>>;
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(State) -> Stream<State>`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:214:15
[INFO] [stderr]     |
[INFO] [stderr] 214 |     iter: Box<Iterator<Item = T>>,
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = T>`
[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/lib.rs:252:25
[INFO] [stderr]     |
[INFO] [stderr] 252 |     type IntoIter = Box<Iterator<Item = T>>;
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:262:20
[INFO] [stderr]     |
[INFO] [stderr] 262 | pub type Goal = Rc<Fn(State) -> Stream<State>>;
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(State) -> Stream<State>`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/uknaren-97762fe955403060
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::einstein_problem_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests uknaren
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7327570cfb77414eeb856d65d9db5fba86da784c006456e653af1263b1f87087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7327570cfb77414eeb856d65d9db5fba86da784c006456e653af1263b1f87087", kill_on_drop: false }`
[INFO] [stdout] 7327570cfb77414eeb856d65d9db5fba86da784c006456e653af1263b1f87087