[INFO] fetching crate suppositions 0.1.4...
[INFO] testing suppositions-0.1.4 against 1.49.0 for beta-1.50-1
[INFO] extracting crate suppositions 0.1.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate suppositions 0.1.4 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate suppositions 0.1.4
[INFO] finished tweaking crates.io crate suppositions 0.1.4
[INFO] tweaked toml for crates.io crate suppositions 0.1.4 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", 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] 64b67069e5fbfa1508156932567321acf4f281fad44d21aaba98dd863e8c9480
[INFO] running `Command { std: "docker" "start" "-a" "64b67069e5fbfa1508156932567321acf4f281fad44d21aaba98dd863e8c9480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64b67069e5fbfa1508156932567321acf4f281fad44d21aaba98dd863e8c9480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64b67069e5fbfa1508156932567321acf4f281fad44d21aaba98dd863e8c9480", kill_on_drop: false }`
[INFO] [stdout] 64b67069e5fbfa1508156932567321acf4f281fad44d21aaba98dd863e8c9480
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 32aeec5ad385c816c6899f2f6800caa8c244b0a5adefd7450066c48f9eed247e
[INFO] running `Command { std: "docker" "start" "-a" "32aeec5ad385c816c6899f2f6800caa8c244b0a5adefd7450066c48f9eed247e", kill_on_drop: false }`
[INFO] [stderr]    Compiling hex-slice v0.1.4
[INFO] [stderr]    Compiling suppositions v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/generators.rs:157:38
[INFO] [stdout]     |
[INFO] [stdout] 157 |     fn generate_obj(&self, src: &mut Iterator<Item = u8>) -> Maybe<Self::Item>;
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[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/generators.rs:167:27
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn boxed(self) -> Box<GeneratorObject<Item = Self::Item>>;
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject<Item = Self::Item>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/generators.rs:175:27
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn boxed(self) -> Box<GeneratorObject<Item = Self::Item>> {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject<Item = Self::Item>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/generators.rs:182:42
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn generate_obj(&self, mut src: &mut Iterator<Item = u8>) -> Maybe<Self::Item> {
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/generators.rs:187:27
[INFO] [stdout]     |
[INFO] [stdout] 187 | impl<T> Generator for Box<GeneratorObject<Item = T>> {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject<Item = T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/generators.rs:190:43
[INFO] [stdout]     |
[INFO] [stdout] 190 |         (**self).generate_obj(src as &mut Iterator<Item = u8>)
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "32aeec5ad385c816c6899f2f6800caa8c244b0a5adefd7450066c48f9eed247e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32aeec5ad385c816c6899f2f6800caa8c244b0a5adefd7450066c48f9eed247e", kill_on_drop: false }`
[INFO] [stdout] 32aeec5ad385c816c6899f2f6800caa8c244b0a5adefd7450066c48f9eed247e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42f3ba5b1d09ca60ccac69ff034f24ab6aaa99f1377ea7970262b2588cb67083
[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" "42f3ba5b1d09ca60ccac69ff034f24ab6aaa99f1377ea7970262b2588cb67083", kill_on_drop: false }`
[INFO] [stderr]    Compiling suppositions v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/generators.rs:157:38
[INFO] [stdout]     |
[INFO] [stdout] 157 |     fn generate_obj(&self, src: &mut Iterator<Item = u8>) -> Maybe<Self::Item>;
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[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/generators.rs:167:27
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn boxed(self) -> Box<GeneratorObject<Item = Self::Item>>;
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject<Item = Self::Item>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/generators.rs:175:27
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn boxed(self) -> Box<GeneratorObject<Item = Self::Item>> {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject<Item = Self::Item>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/generators.rs:182:42
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn generate_obj(&self, mut src: &mut Iterator<Item = u8>) -> Maybe<Self::Item> {
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/generators.rs:187:27
[INFO] [stdout]     |
[INFO] [stdout] 187 | impl<T> Generator for Box<GeneratorObject<Item = T>> {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject<Item = T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/generators.rs:190:43
[INFO] [stdout]     |
[INFO] [stdout] 190 |         (**self).generate_obj(src as &mut Iterator<Item = u8>)
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/recursive.rs:36:22
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn expr_gen() -> Box<GeneratorObject<Item=Expr>> {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject<Item=Expr>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> tests/smoketest.rs:57:14
[INFO] [stdout]    |
[INFO] [stdout] 57 |     property((booleans())).check(|_| false)
[INFO] [stdout]    |              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> tests/smoketest.rs:62:14
[INFO] [stdout]    |
[INFO] [stdout] 62 |     property((booleans())).check(|_| true)
[INFO] [stdout]    |              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> tests/smoketest.rs:77:14
[INFO] [stdout]    |
[INFO] [stdout] 77 |     property((booleans())).check(|_| -> Result<(), ()> { Err(()) })
[INFO] [stdout]    |              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> tests/smoketest.rs:83:14
[INFO] [stdout]    |
[INFO] [stdout] 83 |     property((booleans())).check(|_| -> Result<(), &'static str> { Err("horrible failure") })
[INFO] [stdout]    |              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> tests/smoketest.rs:89:14
[INFO] [stdout]    |
[INFO] [stdout] 89 |     property((booleans())).check(|_| -> Result<(), ()> { Ok(()) })
[INFO] [stdout]    |              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> tests/smoketest.rs:95:14
[INFO] [stdout]    |
[INFO] [stdout] 95 |     property((booleans())).check(|_| -> () { panic!("Big bad boom") })
[INFO] [stdout]    |              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> tests/smoketest.rs:101:14
[INFO] [stdout]     |
[INFO] [stdout] 101 |     property((booleans())).check(|_| -> () { panic!("Big bad boom") })
[INFO] [stdout]     |              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/data.rs:321:17
[INFO] [stdout]     |
[INFO] [stdout] 321 |         let _: &Iterator<Item = u8> = &p.replay();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[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/data.rs:330:17
[INFO] [stdout]     |
[INFO] [stdout] 330 |         let _: &Iterator<Item = u8> = &p.replay();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/generators.rs:157:38
[INFO] [stdout]     |
[INFO] [stdout] 157 |     fn generate_obj(&self, src: &mut Iterator<Item = u8>) -> Maybe<Self::Item>;
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/generators.rs:167:27
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn boxed(self) -> Box<GeneratorObject<Item = Self::Item>>;
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject<Item = Self::Item>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/generators.rs:175:27
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn boxed(self) -> Box<GeneratorObject<Item = Self::Item>> {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject<Item = Self::Item>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/generators.rs:182:42
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn generate_obj(&self, mut src: &mut Iterator<Item = u8>) -> Maybe<Self::Item> {
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/generators.rs:187:27
[INFO] [stdout]     |
[INFO] [stdout] 187 | impl<T> Generator for Box<GeneratorObject<Item = T>> {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject<Item = T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/generators.rs:190:43
[INFO] [stdout]     |
[INFO] [stdout] 190 |         (**self).generate_obj(src as &mut Iterator<Item = u8>)
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/die-hard.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn ops() -> Box<GeneratorObject<Item = Op>> {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject<Item = Op>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 12.89s
[INFO] running `Command { std: "docker" "inspect" "42f3ba5b1d09ca60ccac69ff034f24ab6aaa99f1377ea7970262b2588cb67083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42f3ba5b1d09ca60ccac69ff034f24ab6aaa99f1377ea7970262b2588cb67083", kill_on_drop: false }`
[INFO] [stdout] 42f3ba5b1d09ca60ccac69ff034f24ab6aaa99f1377ea7970262b2588cb67083
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 92bfdcf6007787f5503e907ee3445b3a825cfb490dd90d1304f81a18659213c2
[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" "92bfdcf6007787f5503e907ee3445b3a825cfb490dd90d1304f81a18659213c2", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/generators.rs:157:38
[INFO] [stderr]     |
[INFO] [stderr] 157 |     fn generate_obj(&self, src: &mut Iterator<Item = u8>) -> Maybe<Self::Item>;
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[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/generators.rs:167:27
[INFO] [stderr]     |
[INFO] [stderr] 167 |     fn boxed(self) -> Box<GeneratorObject<Item = Self::Item>>;
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject<Item = Self::Item>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/generators.rs:175:27
[INFO] [stderr]     |
[INFO] [stderr] 175 |     fn boxed(self) -> Box<GeneratorObject<Item = Self::Item>> {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject<Item = Self::Item>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/generators.rs:182:42
[INFO] [stderr]     |
[INFO] [stderr] 182 |     fn generate_obj(&self, mut src: &mut Iterator<Item = u8>) -> Maybe<Self::Item> {
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/generators.rs:187:27
[INFO] [stderr]     |
[INFO] [stderr] 187 | impl<T> Generator for Box<GeneratorObject<Item = T>> {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject<Item = T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/generators.rs:190:43
[INFO] [stderr]     |
[INFO] [stderr] 190 |         (**self).generate_obj(src as &mut Iterator<Item = u8>)
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/data.rs:321:17
[INFO] [stderr]     |
[INFO] [stderr] 321 |         let _: &Iterator<Item = u8> = &p.replay();
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[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/data.rs:330:17
[INFO] [stderr]     |
[INFO] [stderr] 330 |         let _: &Iterator<Item = u8> = &p.replay();
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/generators.rs:157:38
[INFO] [stderr]     |
[INFO] [stderr] 157 |     fn generate_obj(&self, src: &mut Iterator<Item = u8>) -> Maybe<Self::Item>;
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/generators.rs:167:27
[INFO] [stderr]     |
[INFO] [stderr] 167 |     fn boxed(self) -> Box<GeneratorObject<Item = Self::Item>>;
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject<Item = Self::Item>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/generators.rs:175:27
[INFO] [stderr]     |
[INFO] [stderr] 175 |     fn boxed(self) -> Box<GeneratorObject<Item = Self::Item>> {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject<Item = Self::Item>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/generators.rs:182:42
[INFO] [stderr]     |
[INFO] [stderr] 182 |     fn generate_obj(&self, mut src: &mut Iterator<Item = u8>) -> Maybe<Self::Item> {
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/generators.rs:187:27
[INFO] [stderr]     |
[INFO] [stderr] 187 | impl<T> Generator for Box<GeneratorObject<Item = T>> {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject<Item = T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/generators.rs:190:43
[INFO] [stderr]     |
[INFO] [stderr] 190 |         (**self).generate_obj(src as &mut Iterator<Item = u8>)
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u8>`
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> tests/smoketest.rs:57:14
[INFO] [stderr]    |
[INFO] [stderr] 57 |     property((booleans())).check(|_| false)
[INFO] [stderr]    |              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> tests/smoketest.rs:62:14
[INFO] [stderr]    |
[INFO] [stderr] 62 |     property((booleans())).check(|_| true)
[INFO] [stderr]    |              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> tests/smoketest.rs:77:14
[INFO] [stderr]    |
[INFO] [stderr] 77 |     property((booleans())).check(|_| -> Result<(), ()> { Err(()) })
[INFO] [stderr]    |              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> tests/smoketest.rs:83:14
[INFO] [stderr]    |
[INFO] [stderr] 83 |     property((booleans())).check(|_| -> Result<(), &'static str> { Err("horrible failure") })
[INFO] [stderr]    |              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> tests/smoketest.rs:89:14
[INFO] [stderr]    |
[INFO] [stderr] 89 |     property((booleans())).check(|_| -> Result<(), ()> { Ok(()) })
[INFO] [stderr]    |              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> tests/smoketest.rs:95:14
[INFO] [stderr]    |
[INFO] [stderr] 95 |     property((booleans())).check(|_| -> () { panic!("Big bad boom") })
[INFO] [stderr]    |              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> tests/smoketest.rs:101:14
[INFO] [stderr]     |
[INFO] [stderr] 101 |     property((booleans())).check(|_| -> () { panic!("Big bad boom") })
[INFO] [stderr]     |              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/die-hard.rs:70:17
[INFO] [stderr]    |
[INFO] [stderr] 70 | fn ops() -> Box<GeneratorObject<Item = Op>> {
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject<Item = Op>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/recursive.rs:36:22
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn expr_gen() -> Box<GeneratorObject<Item=Expr>> {
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject<Item=Expr>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/suppositions-93cef0f83cd1a636
[INFO] [stdout] running 61 tests
[INFO] [stdout] test data::tests::minimiser_should_minimise_scalar_values_to_empty ... ok
[INFO] [stdout] test data::tests::minimiser_should_minimise_to_empty ... ok
[INFO] [stdout] test data::tests::minimiser_should_minimise_scalar_values_accounting_for_overflow ... ok
[INFO] [stdout] test data::tests::minimiser_should_minimise_scalar_values_by_search ... ok
[INFO] [stdout] test data::tests::replay_can_act_as_iterator ... ok
[INFO] [stdout] test data::tests::minimiser_should_minimise_to_minimum_given_size ... ok
[INFO] [stdout] test data::tests::minimiser_should_minimise_scalar_values ... ok
[INFO] [stdout] test data::tests::should_allow_borrowing_buffer ... ok
[INFO] [stdout] test data::tests::should_generate_random_data ... ok
[INFO] [stdout] test data::tests::should_allow_restarting_read ... ok
[INFO] [stdout] test data::tests::should_take_each_item_in_pool ... ok
[INFO] [stdout] test data::tests::tap_can_act_as_iterator ... ok
[INFO] [stdout] test generators::tests::biased_coin ... ok
[INFO] [stdout] test generators::tests::bools_minimize_to_false ... ok
[INFO] [stdout] test generators::tests::bools_should_generate_false_booleans_from_zeros ... ok
[INFO] [stdout] test generators::tests::bools_should_generate_true_booleans_from_saturated_values ... ok
[INFO] [stdout] test generators::tests::collections_u64s_minimize_to_empty ... ok
[INFO] [stdout] test generators::tests::filter_map_should_skip_when_err ... ok
[INFO] [stdout] test generators::tests::consts_should_generate_same_values ... ok
[INFO] [stdout] test generators::tests::filter_should_skip_when_false ... ok
[INFO] [stdout] test generators::tests::filter_map_should_pass_through_when_ok ... ok
[INFO] [stdout] test generators::tests::i64s_minimize_to_zero ... ok
[INFO] [stdout] test generators::tests::filter_should_pass_through_when_true ... ok
[INFO] [stdout] test generators::tests::info_pools_minimize_to_empty ... ok
[INFO] [stdout] test generators::tests::result_u8_u64s_minimize_to_ok ... ok
[INFO] [stdout] test generators::tests::optional_u64s_minimize_to_none ... ok
[INFO] [stdout] test generators::tests::tuple_u8s_u8s_minimize_to_zero ... ok
[INFO] [stdout] test generators::tests::info_pools_should_generate_same_output_given_same_input ... ok
[INFO] [stdout] test generators::tests::bools_should_generate_same_output_given_same_input ... ok
[INFO] [stdout] test generators::tests::u64s_minimize_to_zero ... ok
[INFO] [stdout] test generators::tests::one_of_should_pick_choices_relativey_evenly ... ok
[INFO] [stdout] test generators::tests::i64s_should_generate_same_output_given_same_input ... ok
[INFO] [stdout] test generators::tests::tuple_u8s_u8s_should_generate_same_output_given_same_input ... ok
[INFO] [stdout] test generators::tests::info_pools_usually_generates_different_output_for_different_inputs ... ok
[INFO] [stdout] test generators::tests::bools_usually_generates_different_output_for_different_inputs ... ok
[INFO] [stdout] test generators::tests::u64s_usually_generates_different_output_for_different_inputs ... ok
[INFO] [stdout] test generators::tests::u8s_minimize_to_zero ... ok
[INFO] [stdout] test generators::tests::collection_lengths::mean_length_can_be_set_as_5 ... ok
[INFO] [stdout] test generators::tests::vec_bools_minimize_to_empty ... ok
[INFO] [stdout] test generators::tests::vec_bools_can_minimise_with_predicate ... ok
[INFO] [stdout] test generators::tests::collection_lengths::mean_length_can_be_set_as_7 ... ok
[INFO] [stdout] test generators::tests::collection_lengths::mean_length_can_be_set_as_3 ... ok
[INFO] [stdout] test generators::tests::i64s_usually_generates_different_output_for_different_inputs ... ok
[INFO] [stdout] test generators::tests::collection_lengths::mean_length_can_be_set_as_10 ... ok
[INFO] [stdout] test generators::tests::u64s_should_generate_same_output_given_same_input ... ok
[INFO] [stdout] test generators::tests::tuple_u8s_u8s_usually_generates_different_output_for_different_inputs ... ok
[INFO] [stdout] test generators::tests::u8s_should_generate_same_output_given_same_input ... ok
[INFO] [stdout] test generators::tests::vecs_should_generate_same_output_given_same_input ... ok
[INFO] [stdout] test generators::tests::bools_should_partially_order_same_as_source ... ok
[INFO] [stdout] test generators::tests::collection_lengths::mean_length_can_be_set_as_23 ... ok
[INFO] [stdout] test generators::tests::u64s_should_partially_order_same_as_source ... ok
[INFO] [stdout] test generators::tests::u8s_usually_generates_different_output_for_different_inputs ... ok
[INFO] [stdout] test generators::tests::vecs_usually_generates_different_output_for_different_inputs ... ok
[INFO] [stdout] test generators::tests::vector_lengths::mean_length_can_be_set_as_3 ... ok
[INFO] [stdout] test generators::tests::vector_lengths::mean_length_can_be_set_as_10 ... ok
[INFO] [stdout] test generators::tests::vector_lengths::mean_length_can_be_set_as_5 ... ok
[INFO] [stdout] test generators::tests::i64s_should_partially_order_same_as_source ... ok
[INFO] [stdout] test generators::tests::vector_lengths::mean_length_can_be_set_as_7 ... ok
[INFO] [stdout] test generators::tests::tuple_u8s_u8s_should_partially_order_same_as_source ... ok
[INFO] [stdout] test generators::tests::vector_lengths::mean_length_can_be_set_as_23 ... ok
[INFO] [stdout] test generators::tests::u8s_should_partially_order_same_as_source ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 61 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/generators-56da5f524b3b3547
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test generator_of_3_tuple ... ok
[INFO] [stdout] test one_of_should_pick_a_single_sample ... ok
[INFO] [stdout] test uniform_f64s_should_generate_values_between_0_and_1 ... ok
[INFO] [stdout] test weighted_coin_should_generate_same_output_given_same_input ... ok
[INFO] [stdout] test uniform_f64s_should_generate_same_output_given_same_input ... ok
[INFO] [stdout] test lazy_generator_yields_same_as_inner_value ... ok
[INFO] [stdout] test generator_of_2_tuple ... ok
[INFO] [stdout] test one_of_should_partially_order_same_as_source ... ok
[INFO] [stdout] test i64s_should_generate_same_output_given_same_input ... ok
[INFO] [stdout] test uniform_f64s_should_partially_order_same_as_source ... ok
[INFO] [stdout] test weighted_coin_should_partially_order_same_as_source ... ok
[INFO] [stdout] test generator_map_should_trivially_preserve_invariants ... ok
[INFO] [stdout] test boxed_generator_yields_same_as_inner_value ... ok
[INFO] [stdout] test f64s_should_generate_same_output_given_same_input ... ok
[INFO] [stdout] test f64s_should_partially_order_same_as_source ... ok
[INFO] [stdout] test i64s_should_partially_order_same_as_source ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/recursive-b6302044f0e2747f
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test add_adds ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/smoketest-e857204b4a86e185
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test trivial_result_pass ... ok
[INFO] [stdout] test some_approximation_of_usage ... ok
[INFO] [stdout] test trivial_pass ... ok
[INFO] [stdout] test trivial_panic_failure ... ok
[INFO] [stdout] test trivial_failure ... ok
[INFO] [stdout] test panic_includes_failure_message ... ok
[INFO] [stdout] test trivial_result_failure ... ok
[INFO] [stdout] test value_dependent ... ok
[INFO] [stdout] test trivial_result_includes_failing_result ... ok
[INFO] [stdout] test some_approximation_of_failing_example ... ok
[INFO] [stdout] test mersenne_conjecture ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests suppositions
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 25) ... ok
[INFO] [stdout] test src/generators.rs - generators::one_of (line 618) ... ok
[INFO] [stdout] test src/generators.rs - generators::collections (line 246) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "92bfdcf6007787f5503e907ee3445b3a825cfb490dd90d1304f81a18659213c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92bfdcf6007787f5503e907ee3445b3a825cfb490dd90d1304f81a18659213c2", kill_on_drop: false }`
[INFO] [stdout] 92bfdcf6007787f5503e907ee3445b3a825cfb490dd90d1304f81a18659213c2