[INFO] crate quickercheck 0.2.0 is already in cache [INFO] extracting crate quickercheck 0.2.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/quickercheck/0.2.0 [INFO] extracting crate quickercheck 0.2.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/quickercheck/0.2.0 [INFO] validating manifest of quickercheck-0.2.0 on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of quickercheck-0.2.0 on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing quickercheck-0.2.0 [INFO] finished frobbing quickercheck-0.2.0 [INFO] frobbed toml for quickercheck-0.2.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/quickercheck/0.2.0/Cargo.toml [INFO] started frobbing quickercheck-0.2.0 [INFO] finished frobbing quickercheck-0.2.0 [INFO] frobbed toml for quickercheck-0.2.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/quickercheck/0.2.0/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing quickercheck-0.2.0 against 1.36.0 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/quickercheck/0.2.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"` [INFO] [stdout] 7747976d1cecafb30f8e065ca73bf12fc284b84c8f44b7bac10bd343535b6a7a [INFO] running `"docker" "start" "-a" "7747976d1cecafb30f8e065ca73bf12fc284b84c8f44b7bac10bd343535b6a7a"` [INFO] [stderr] Compiling quickercheck v0.2.0 (/opt/crater/workdir) [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/arbitrary.rs:108:48 [INFO] [stderr] | [INFO] [stderr] 108 | FromIteratorGenerator::new(($($placeholder::arbitrary()),*)) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] ... [INFO] [stderr] 119 | / generic_impls! { [INFO] [stderr] 120 | | Vec, [INFO] [stderr] 121 | | BTreeMap, [INFO] [stderr] 122 | | BTreeSet, [INFO] [stderr] ... | [INFO] [stderr] 127 | | VecDeque [INFO] [stderr] 128 | | } [INFO] [stderr] | |_- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_parens)] on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/arbitrary.rs:112:47 [INFO] [stderr] | [INFO] [stderr] 112 | FromIteratorShrinker::new(($($placeholder::shrink()),*)) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] ... [INFO] [stderr] 119 | / generic_impls! { [INFO] [stderr] 120 | | Vec, [INFO] [stderr] 121 | | BTreeMap, [INFO] [stderr] 122 | | BTreeSet, [INFO] [stderr] ... | [INFO] [stderr] 127 | | VecDeque [INFO] [stderr] 128 | | } [INFO] [stderr] | |_- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/arbitrary.rs:108:48 [INFO] [stderr] | [INFO] [stderr] 108 | FromIteratorGenerator::new(($($placeholder::arbitrary()),*)) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] ... [INFO] [stderr] 119 | / generic_impls! { [INFO] [stderr] 120 | | Vec, [INFO] [stderr] 121 | | BTreeMap, [INFO] [stderr] 122 | | BTreeSet, [INFO] [stderr] ... | [INFO] [stderr] 127 | | VecDeque [INFO] [stderr] 128 | | } [INFO] [stderr] | |_- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: lifetime may not live long enough [INFO] [stderr] --> src/generate.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 13 | impl <'a, R: ?Sized + 'a> GenerateCtx<'a, R> { [INFO] [stderr] | -- lifetime `'a` defined here [INFO] [stderr] ... [INFO] [stderr] 19 | pub fn chop<'b>(&'b mut self) -> GenerateCtx<'b, R> [INFO] [stderr] | -- lifetime `'b` defined here [INFO] [stderr] ... [INFO] [stderr] 22 | Self::new(self.rng, self.size/2) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ argument requires that `'b` must outlive `'a` [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 11.32s [INFO] running `"docker" "inspect" "7747976d1cecafb30f8e065ca73bf12fc284b84c8f44b7bac10bd343535b6a7a"` [INFO] running `"docker" "rm" "-f" "7747976d1cecafb30f8e065ca73bf12fc284b84c8f44b7bac10bd343535b6a7a"` [INFO] [stdout] 7747976d1cecafb30f8e065ca73bf12fc284b84c8f44b7bac10bd343535b6a7a [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/quickercheck/0.2.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 3a8dfa341b266d9774bfe3f0eda69c5347144194ea252a5d47cf0b0d2932bfdc [INFO] running `"docker" "start" "-a" "3a8dfa341b266d9774bfe3f0eda69c5347144194ea252a5d47cf0b0d2932bfdc"` [INFO] [stderr] Compiling quickercheck v0.2.0 (/opt/crater/workdir) [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/arbitrary.rs:108:48 [INFO] [stderr] | [INFO] [stderr] 108 | FromIteratorGenerator::new(($($placeholder::arbitrary()),*)) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] ... [INFO] [stderr] 119 | / generic_impls! { [INFO] [stderr] 120 | | Vec, [INFO] [stderr] 121 | | BTreeMap, [INFO] [stderr] 122 | | BTreeSet, [INFO] [stderr] ... | [INFO] [stderr] 127 | | VecDeque [INFO] [stderr] 128 | | } [INFO] [stderr] | |_- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_parens)] on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/arbitrary.rs:112:47 [INFO] [stderr] | [INFO] [stderr] 112 | FromIteratorShrinker::new(($($placeholder::shrink()),*)) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] ... [INFO] [stderr] 119 | / generic_impls! { [INFO] [stderr] 120 | | Vec, [INFO] [stderr] 121 | | BTreeMap, [INFO] [stderr] 122 | | BTreeSet, [INFO] [stderr] ... | [INFO] [stderr] 127 | | VecDeque [INFO] [stderr] 128 | | } [INFO] [stderr] | |_- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/arbitrary.rs:108:48 [INFO] [stderr] | [INFO] [stderr] 108 | FromIteratorGenerator::new(($($placeholder::arbitrary()),*)) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] ... [INFO] [stderr] 119 | / generic_impls! { [INFO] [stderr] 120 | | Vec, [INFO] [stderr] 121 | | BTreeMap, [INFO] [stderr] 122 | | BTreeSet, [INFO] [stderr] ... | [INFO] [stderr] 127 | | VecDeque [INFO] [stderr] 128 | | } [INFO] [stderr] | |_- in this macro invocation [INFO] [stderr] [INFO] [stderr] warning: lifetime may not live long enough [INFO] [stderr] --> src/generate.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 13 | impl <'a, R: ?Sized + 'a> GenerateCtx<'a, R> { [INFO] [stderr] | -- lifetime `'a` defined here [INFO] [stderr] ... [INFO] [stderr] 19 | pub fn chop<'b>(&'b mut self) -> GenerateCtx<'b, R> [INFO] [stderr] | -- lifetime `'b` defined here [INFO] [stderr] ... [INFO] [stderr] 22 | Self::new(self.rng, self.size/2) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ argument requires that `'b` must outlive `'a` [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 14.52s [INFO] running `"docker" "inspect" "3a8dfa341b266d9774bfe3f0eda69c5347144194ea252a5d47cf0b0d2932bfdc"` [INFO] running `"docker" "rm" "-f" "3a8dfa341b266d9774bfe3f0eda69c5347144194ea252a5d47cf0b0d2932bfdc"` [INFO] [stdout] 3a8dfa341b266d9774bfe3f0eda69c5347144194ea252a5d47cf0b0d2932bfdc [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/quickercheck/0.2.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen"` [INFO] [stdout] f72f3574bcbc0dce53aa93b9e0877a6c91a1b31931fcb4360d4d30087178d824 [INFO] running `"docker" "start" "-a" "f72f3574bcbc0dce53aa93b9e0877a6c91a1b31931fcb4360d4d30087178d824"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running /opt/crater/target/debug/deps/quickercheck-e3a6d48e6b86a60b [INFO] [stdout] [INFO] [stdout] running 30 tests [INFO] [stdout] test generate::tests::gen_unit ... ok [INFO] [stdout] test generate::tests::gen_u8 ... ok [INFO] [stdout] test generate::tests::gen_i8 ... ok [INFO] [stdout] test property::tests::test_for_all_property ... ok [INFO] [stdout] test property::tests::test_simple_property ... ok [INFO] [stdout] test property::tests::test_generic_property ... ok [INFO] [stdout] test testable::tests::for_all_with_two_arguments_is_testable ... ok [INFO] [stdout] test testable::tests::property_is_testable ... ok [INFO] [stdout] test testable::tests::property_returning_non_test_result_is_testable ... ok [INFO] [stdout] test testable::tests::for_all_is_testable ... ok [INFO] [stdout] test property::tests::test_when_property ... ok [INFO] [stdout] test testable::tests::cast_fn_is_testable2 ... ok [INFO] [stdout] test testable::tests::property_is_testable_by_reference ... ok [INFO] [stdout] test tests::failing_reverse_combine ... ok [INFO] [stdout] test testable::tests::property_with_args_is_testable ... ok [INFO] [stdout] test testable::tests::cast_fn_is_testable ... ok [INFO] [stdout] test tests::sieve_not_all_primes ... ok [INFO] [stdout] test tests::max ... ok [INFO] [stdout] test tests::prop_reverse_reverse ... ok [INFO] [stdout] test tests::sieve_not_prime ... ok [INFO] [stdout] test testable::tests::when_property_is_testable ... ok [INFO] [stdout] test tests::testable_result_err2 ... ok [INFO] [stdout] test tests::reverse_app ... ok [INFO] [stdout] test tests::testable_result ... ok [INFO] [stdout] test tests::testable_unit ... ok [INFO] [stdout] test tests::sort ... ok [INFO] [stdout] test tests::failing_property ... ok [INFO] [stdout] test tests::testable_result_err ... ok [INFO] [stdout] test tests::prop_oob ... ok [INFO] [stdout] test tests::reverse_single ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Doc-tests quickercheck [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 `"docker" "inspect" "f72f3574bcbc0dce53aa93b9e0877a6c91a1b31931fcb4360d4d30087178d824"` [INFO] running `"docker" "rm" "-f" "f72f3574bcbc0dce53aa93b9e0877a6c91a1b31931fcb4360d4d30087178d824"` [INFO] [stdout] f72f3574bcbc0dce53aa93b9e0877a6c91a1b31931fcb4360d4d30087178d824