[INFO] fetching crate suppositions 0.1.4... [INFO] testing suppositions-0.1.4 against beta-2021-09-08 for beta-1.56-1 [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 beta-2021-09-08 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] af9b3c535020ddf39ae47c433d7cacc19d2b82c233ed7a69b71c3973baaf7bf8 [INFO] running `Command { std: "docker" "start" "-a" "af9b3c535020ddf39ae47c433d7cacc19d2b82c233ed7a69b71c3973baaf7bf8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "af9b3c535020ddf39ae47c433d7cacc19d2b82c233ed7a69b71c3973baaf7bf8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "af9b3c535020ddf39ae47c433d7cacc19d2b82c233ed7a69b71c3973baaf7bf8", kill_on_drop: false }` [INFO] [stdout] af9b3c535020ddf39ae47c433d7cacc19d2b82c233ed7a69b71c3973baaf7bf8 [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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f4298c67a2c7e21483f8853ab06d996128465e24f85d1870e5a3c2527cb4ce25 [INFO] running `Command { std: "docker" "start" "-a" "f4298c67a2c7e21483f8853ab06d996128465e24f85d1870e5a3c2527cb4ce25", 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) -> Maybe; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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) -> Maybe { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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 Generator for Box> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.84s [INFO] running `Command { std: "docker" "inspect" "f4298c67a2c7e21483f8853ab06d996128465e24f85d1870e5a3c2527cb4ce25", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f4298c67a2c7e21483f8853ab06d996128465e24f85d1870e5a3c2527cb4ce25", kill_on_drop: false }` [INFO] [stdout] f4298c67a2c7e21483f8853ab06d996128465e24f85d1870e5a3c2527cb4ce25 [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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e7e8891a105f2c93abd2d99ffc5f662d9f6618e04415b036feb152ae18e4b878 [INFO] running `Command { std: "docker" "start" "-a" "e7e8891a105f2c93abd2d99ffc5f662d9f6618e04415b036feb152ae18e4b878", kill_on_drop: false }` [INFO] [stderr] Compiling env_logger v0.4.3 [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) -> Maybe; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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) -> Maybe { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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 Generator for Box> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling suppositions v0.1.4 (/opt/rustwide/workdir) [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: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> examples/die-hard.rs:70:17 [INFO] [stdout] | [INFO] [stdout] 70 | fn ops() -> Box> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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] --> tests/recursive.rs:36:22 [INFO] [stdout] | [INFO] [stdout] 36 | fn expr_gen() -> Box> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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 = &p.replay(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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 = &p.replay(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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) -> Maybe; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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) -> Maybe { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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 Generator for Box> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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 3.67s [INFO] running `Command { std: "docker" "inspect" "e7e8891a105f2c93abd2d99ffc5f662d9f6618e04415b036feb152ae18e4b878", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e7e8891a105f2c93abd2d99ffc5f662d9f6618e04415b036feb152ae18e4b878", kill_on_drop: false }` [INFO] [stdout] e7e8891a105f2c93abd2d99ffc5f662d9f6618e04415b036feb152ae18e4b878 [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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] c1e9b380f887d1e7a7265e0dd475deb6485d90a47a0afdd2e4e96563c79629cd [INFO] running `Command { std: "docker" "start" "-a" "c1e9b380f887d1e7a7265e0dd475deb6485d90a47a0afdd2e4e96563c79629cd", 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) -> Maybe; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [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>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject` [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [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> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject` [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [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) -> Maybe { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [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 Generator for Box> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject` [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [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) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] [INFO] [stderr] warning: `suppositions` (lib) generated 6 warnings [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> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [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: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/data.rs:321:17 [INFO] [stderr] | [INFO] [stderr] 321 | let _: &Iterator = &p.replay(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [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 = &p.replay(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [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) -> Maybe; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [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> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GeneratorObject` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] [INFO] [stderr] warning: `suppositions` (example "die-hard") generated 1 warning [INFO] [stderr] warning: `suppositions` (test "smoketest") generated 7 warnings [INFO] [stderr] warning: `suppositions` (lib test) generated 8 warnings (5 duplicates) [INFO] [stderr] warning: `suppositions` (test "recursive") generated 1 warning [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/suppositions-010ba9e78a62d799) [INFO] [stdout] [INFO] [stdout] running 61 tests [INFO] [stdout] test data::tests::minimiser_should_minimise_scalar_values ... ok [INFO] [stdout] test data::tests::minimiser_should_minimise_scalar_values_by_search ... ok [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_to_minimum_given_size ... ok [INFO] [stdout] test data::tests::minimiser_should_minimise_scalar_values_accounting_for_overflow ... ok [INFO] [stdout] test data::tests::replay_can_act_as_iterator ... ok [INFO] [stdout] test data::tests::should_allow_borrowing_buffer ... 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 data::tests::should_generate_random_data ... ok [INFO] [stdout] test generators::tests::biased_coin ... ok [INFO] [stdout] test data::tests::should_allow_restarting_read ... ok [INFO] [stdout] test generators::tests::bools_should_generate_false_booleans_from_zeros ... ok [INFO] [stdout] test generators::tests::bools_minimize_to_false ... 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_pass_through_when_ok ... ok [INFO] [stdout] test generators::tests::filter_should_pass_through_when_true ... ok [INFO] [stdout] test generators::tests::filter_should_skip_when_false ... 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::i64s_minimize_to_zero ... ok [INFO] [stdout] test generators::tests::bools_should_generate_same_output_given_same_input ... ok [INFO] [stdout] test generators::tests::tuple_u8s_u8s_minimize_to_zero ... ok [INFO] [stdout] test generators::tests::info_pools_minimize_to_empty ... ok [INFO] [stdout] test generators::tests::i64s_should_generate_same_output_given_same_input ... ok [INFO] [stdout] test generators::tests::info_pools_should_generate_same_output_given_same_input ... ok [INFO] [stdout] test generators::tests::bools_usually_generates_different_output_for_different_inputs ... ok [INFO] [stdout] test generators::tests::optional_u64s_minimize_to_none ... ok [INFO] [stdout] test generators::tests::tuple_u8s_u8s_should_generate_same_output_given_same_input ... ok [INFO] [stdout] test generators::tests::result_u8_u64s_minimize_to_ok ... ok [INFO] [stdout] test generators::tests::u64s_minimize_to_zero ... ok [INFO] [stdout] test generators::tests::u8s_minimize_to_zero ... ok [INFO] [stdout] test generators::tests::vec_bools_minimize_to_empty ... ok [INFO] [stdout] test generators::tests::info_pools_usually_generates_different_output_for_different_inputs ... ok [INFO] [stdout] test generators::tests::vec_bools_can_minimise_with_predicate ... ok [INFO] [stdout] test generators::tests::u8s_should_generate_same_output_given_same_input ... ok [INFO] [stdout] test generators::tests::i64s_usually_generates_different_output_for_different_inputs ... ok [INFO] [stdout] test generators::tests::u64s_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::u64s_usually_generates_different_output_for_different_inputs ... ok [INFO] [stdout] test generators::tests::vecs_should_generate_same_output_given_same_input ... ok [INFO] [stdout] test generators::tests::collection_lengths::mean_length_can_be_set_as_5 ... ok [INFO] [stdout] test generators::tests::tuple_u8s_u8s_usually_generates_different_output_for_different_inputs ... ok [INFO] [stdout] test generators::tests::collection_lengths::mean_length_can_be_set_as_3 ... ok [INFO] [stdout] test generators::tests::u8s_usually_generates_different_output_for_different_inputs ... ok [INFO] [stdout] test generators::tests::one_of_should_pick_choices_relativey_evenly ... ok [INFO] [stdout] test generators::tests::vecs_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::collection_lengths::mean_length_can_be_set_as_7 ... 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::vector_lengths::mean_length_can_be_set_as_10 ... ok [INFO] [stdout] test generators::tests::vector_lengths::mean_length_can_be_set_as_3 ... ok [INFO] [stdout] test generators::tests::u8s_should_partially_order_same_as_source ... ok [INFO] [stdout] test generators::tests::vector_lengths::mean_length_can_be_set_as_5 ... ok [INFO] [stdout] test generators::tests::u64s_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::collection_lengths::mean_length_can_be_set_as_23 ... ok [INFO] [stdout] test generators::tests::tuple_u8s_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; finished in 0.12s [INFO] [stdout] [INFO] [stderr] Running tests/generators.rs (/opt/rustwide/target/debug/deps/generators-a51ab4e21ec5c1be) [INFO] [stdout] [INFO] [stdout] running 16 tests [INFO] [stdout] test generator_of_3_tuple ... ok [INFO] [stdout] test generator_of_2_tuple ... ok [INFO] [stdout] test generator_map_should_trivially_preserve_invariants ... ok [INFO] [stdout] test f64s_should_generate_same_output_given_same_input ... ok [INFO] [stdout] test boxed_generator_yields_same_as_inner_value ... ok [INFO] [stdout] test f64s_should_partially_order_same_as_source ... ok [INFO] [stdout] test i64s_should_generate_same_output_given_same_input ... ok [INFO] [stdout] test lazy_generator_yields_same_as_inner_value ... 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 i64s_should_partially_order_same_as_source ... ok [INFO] [stdout] test uniform_f64s_should_generate_same_output_given_same_input ... ok [INFO] [stdout] test one_of_should_partially_order_same_as_source ... ok [INFO] [stdout] test weighted_coin_should_generate_same_output_given_same_input ... ok [INFO] [stdout] test weighted_coin_should_partially_order_same_as_source ... ok [INFO] [stdout] test uniform_f64s_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; finished in 0.02s [INFO] [stdout] [INFO] [stderr] Running tests/recursive.rs (/opt/rustwide/target/debug/deps/recursive-627ffd2f7f88b90b) [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; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running tests/smoketest.rs (/opt/rustwide/target/debug/deps/smoketest-4dabbd9c7cb0fa73) [INFO] [stdout] [INFO] [stdout] running 11 tests [INFO] [stdout] test trivial_pass ... ok [INFO] [stdout] test trivial_result_pass ... ok [INFO] [stdout] test some_approximation_of_usage ... ok [INFO] [stdout] test mersenne_conjecture - should panic ... ok [INFO] [stdout] test trivial_result_includes_failing_result - should panic ... ok [INFO] [stdout] test trivial_failure - should panic ... ok [INFO] [stdout] test trivial_result_failure - should panic ... ok [INFO] [stdout] test value_dependent - should panic ... ok [INFO] [stdout] test some_approximation_of_failing_example - should panic ... ok [INFO] [stdout] test trivial_panic_failure - should panic ... ok [INFO] [stdout] test panic_includes_failure_message - should panic ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s [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::collections (line 246) ... ok [INFO] [stdout] test src/generators.rs - generators::one_of (line 618) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.37s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "c1e9b380f887d1e7a7265e0dd475deb6485d90a47a0afdd2e4e96563c79629cd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c1e9b380f887d1e7a7265e0dd475deb6485d90a47a0afdd2e4e96563c79629cd", kill_on_drop: false }` [INFO] [stdout] c1e9b380f887d1e7a7265e0dd475deb6485d90a47a0afdd2e4e96563c79629cd