[INFO] crate grabbag 0.1.2 is already in cache [INFO] testing grabbag-0.1.2 against 1.38.0 for beta-1.39-1 [INFO] extracting crate grabbag 0.1.2 into work/builds/worker-1/source [INFO] validating manifest of crates.io crate grabbag 0.1.2 on toolchain 1.38.0 [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate grabbag 0.1.2 [INFO] removed path dependency grabbag_macros from crates.io crate grabbag 0.1.2 [INFO] finished tweaking crates.io crate grabbag 0.1.2 [INFO] tweaked toml for crates.io crate grabbag 0.1.2 written to work/builds/worker-1/source/Cargo.toml [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"` [INFO] [stdout] 4810ba402de02ad6cbe1ffe9a56d12e2233fad24d7ab99fc5e371ed67523cf56 [INFO] running `"docker" "start" "-a" "4810ba402de02ad6cbe1ffe9a56d12e2233fad24d7ab99fc5e371ed67523cf56"` [INFO] [stderr] Compiling grabbag_macros v0.1.2 [INFO] [stderr] Compiling grabbag v0.1.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.92s [INFO] running `"docker" "inspect" "4810ba402de02ad6cbe1ffe9a56d12e2233fad24d7ab99fc5e371ed67523cf56"` [INFO] running `"docker" "rm" "-f" "4810ba402de02ad6cbe1ffe9a56d12e2233fad24d7ab99fc5e371ed67523cf56"` [INFO] [stdout] 4810ba402de02ad6cbe1ffe9a56d12e2233fad24d7ab99fc5e371ed67523cf56 [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"` [INFO] [stdout] cb932867d741cedef751f1fafd04c28f595197c3fcd236800f9740de69162165 [INFO] running `"docker" "start" "-a" "cb932867d741cedef751f1fafd04c28f595197c3fcd236800f9740de69162165"` [INFO] [stderr] Compiling grabbag v0.1.2 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used [INFO] [stderr] --> src/iter/skip_exactly.rs:57:37 [INFO] [stderr] | [INFO] [stderr] 57 | let r = thread::spawn(move || { v.into_iter().skip_exactly(3).collect::>(); }).join(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used [INFO] [stderr] --> src/iter/take_exactly.rs:90:37 [INFO] [stderr] | [INFO] [stderr] 90 | let r = thread::spawn(move || { v.into_iter().take_exactly(3).collect::>(); }).join(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.02s [INFO] running `"docker" "inspect" "cb932867d741cedef751f1fafd04c28f595197c3fcd236800f9740de69162165"` [INFO] running `"docker" "rm" "-f" "cb932867d741cedef751f1fafd04c28f595197c3fcd236800f9740de69162165"` [INFO] [stdout] cb932867d741cedef751f1fafd04c28f595197c3fcd236800f9740de69162165 [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"` [INFO] [stdout] d6e2d0c0864577d1d4b969cd0ccdbb4c497a89982587d1771632b04f2d306124 [INFO] running `"docker" "start" "-a" "d6e2d0c0864577d1d4b969cd0ccdbb4c497a89982587d1771632b04f2d306124"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/grabbag-e9fecd0602c5f972 [INFO] [stdout] [INFO] [stdout] running 22 tests [INFO] [stdout] test iter::accumulate::test_accumulate_unwrap ... ok [INFO] [stdout] test iter::accumulate::test_accumulate ... ok [INFO] [stdout] test iter::cartesian_product::test_cartesian_product ... ok [INFO] [stdout] test iter::clone_each::test_clone_each ... ok [INFO] [stderr] thread '' panicked at 'skip_exactly asked to skip 3 elements, but only got 2', src/iter/skip_exactly.rs:38:25 [INFO] [stderr] stack backtrace: [INFO] [stderr] thread '' panicked at 'take_exactly expected 1 more elements from iterator, but ran out', src/iter/take_exactly.rs:67:25 [INFO] [stdout] test iter::fold::test_foldl ... ok [INFO] [stdout] test iter::fold::test_foldr ... ok [INFO] [stdout] test iter::fold::test_foldl_map ... ok [INFO] [stdout] test iter::keep_some::test_keep_some ... ok [INFO] [stdout] test iter::intersperse::test_intersperse ... ok [INFO] [stdout] test iter::round_robin::test_round_robin ... ok [INFO] [stdout] test iter::pad_tail_to::test_pad_tail_to ... ok [INFO] [stdout] test iter::group_by::test_group_by ... ok [INFO] [stdout] test iter::skip_exactly::test_skip ... ok [INFO] [stdout] test iter::round_robin::test_round_robin_longest ... ok [INFO] [stdout] test iter::sorted::test_sorted_by ... ok [INFO] [stdout] test iter::sorted::test_sorted ... ok [INFO] [stdout] test iter::take_exactly::test_take ... ok [INFO] [stdout] test iter::stride::test_stride ... ok [INFO] [stdout] test iter::zip_longest::test_zip_longest ... ok [INFO] [stdout] test iter::tee::test_tee ... ok [INFO] [stderr] 0: 0x5629456fafeb - backtrace::backtrace::libunwind::trace::h89fcc71e59e3bc5b [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x5629456fafeb - backtrace::backtrace::trace_unsynchronized::h0bad9be1379e729a [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x5629456fafeb - std::sys_common::backtrace::_print::hd3382a1f33c473da [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x5629456fafeb - std::sys_common::backtrace::print::h0ec6f03cfb8e76a6 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x5629456fafeb - std::panicking::default_hook::{{closure}}::h96cbf7b454e3f557 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x5629456facc6 - std::panicking::default_hook::h95a8f00337383d83 [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x5629456fb75d - std::panicking::rust_panic_with_hook::h92f98b46e22f14ed [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x5629456fb2e2 - std::panicking::continue_panic_fmt::h25abfbb4e5b7043a [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x5629456fb22f - std::panicking::begin_panic_fmt::hc33ce01c7f7cd52d [INFO] [stderr] at src/libstd/panicking.rs:339 [INFO] [stderr] 9: 0x562945671e17 - grabbag::iter::skip_exactly::SkipExactlyIterator::skip_exactly::hbff922baa3744288 [INFO] [stderr] at src/iter/skip_exactly.rs:38 [INFO] [stderr] 10: 0x562945697061 - grabbag::iter::skip_exactly::test_skip_exactly::{{closure}}::hbbc4cedd87d76fd5 [INFO] [stderr] at src/iter/skip_exactly.rs:57 [INFO] [stderr] 11: 0x5629456a0038 - std::sys_common::backtrace::__rust_begin_short_backtrace::h39610d2e3484d516 [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/sys_common/backtrace.rs:77 [INFO] [stderr] 12: 0x562945687765 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h19cffe35b89d4bdb [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/thread/mod.rs:470 [INFO] [stderr] 13: 0x562945678718 - as core::ops::function::FnOnce<()>>::call_once::h1a450aa40ee09fb8 [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panic.rs:315 [INFO] [stderr] 14: 0x5629456925a7 - std::panicking::try::do_call::h73dd2ad2028cab08 [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panicking.rs:296 [INFO] [stderr] 15: 0x5629456fdf3a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 16: 0x562945692210 - std::panicking::try::ha356e36af808c4af [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panicking.rs:275 [INFO] [stderr] 17: 0x5629456788c8 - std::panic::catch_unwind::hac36fe634e73896a [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panic.rs:394 [INFO] [stderr] 18: 0x562945687272 - std::thread::Builder::spawn_unchecked::{{closure}}::h344a2d09a775cc64 [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/thread/mod.rs:469 [INFO] [stderr] 19: 0x5629456a65e3 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb41e7063b3f932db [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libcore/ops/function.rs:235 [INFO] [stderr] 20: 0x5629456f0caf - as core::ops::function::FnOnce>::call_once::h2877b2aefb0fd627 [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/liballoc/boxed.rs:787 [INFO] [stderr] 21: 0x5629456fd5e0 - as core::ops::function::FnOnce>::call_once::h13f473dbcdaa0fef [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/liballoc/boxed.rs:787 [INFO] [stderr] 22: 0x5629456fd5e0 - std::sys_common::thread::start_thread::h562a7c4953cb1d31 [INFO] [stderr] at src/libstd/sys_common/thread.rs:13 [INFO] [stderr] 23: 0x5629456fd5e0 - std::sys::unix::thread::Thread::new::thread_start::h382c6ae14181d163 [INFO] [stderr] at src/libstd/sys/unix/thread.rs:79 [INFO] [stderr] 24: 0x7f0efb8e96db - start_thread [INFO] [stderr] 25: 0x7f0efb3fa88f - __clone [INFO] [stderr] 26: 0x0 - [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x5629456fafeb - backtrace::backtrace::libunwind::trace::h89fcc71e59e3bc5b [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x5629456fafeb - backtrace::backtrace::trace_unsynchronized::h0bad9be1379e729a [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x5629456fafeb - std::sys_common::backtrace::_print::hd3382a1f33c473da [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x5629456fafeb - std::sys_common::backtrace::print::h0ec6f03cfb8e76a6 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x5629456fafeb - std::panicking::default_hook::{{closure}}::h96cbf7b454e3f557 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x5629456facc6 - std::panicking::default_hook::h95a8f00337383d83 [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x5629456fb75d - std::panicking::rust_panic_with_hook::h92f98b46e22f14ed [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x5629456fb2e2 - std::panicking::continue_panic_fmt::h25abfbb4e5b7043a [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x5629456fb22f - std::panicking::begin_panic_fmt::hc33ce01c7f7cd52d [INFO] [stderr] at src/libstd/panicking.rs:339 [INFO] [stdout] test iter::skip_exactly::test_skip_exactly ... ok [INFO] [stderr] 9: 0x562945682676 - as core::iter::traits::iterator::Iterator>::next::h553f3caf7fc83809 [INFO] [stderr] at src/iter/take_exactly.rs:67 [INFO] [stderr] 10: 0x56294566a403 - alloc::vec::Vec::extend_desugared::h9e9beef92f7fba23 [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/liballoc/vec.rs:2038 [INFO] [stderr] 11: 0x56294566d46c - as alloc::vec::SpecExtend>::spec_extend::haaf6a13ac22dfcd9 [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/liballoc/vec.rs:1935 [INFO] [stderr] 12: 0x56294566e5b0 - as alloc::vec::SpecExtend>::from_iter::hc0cefbcbe8980199 [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/liballoc/vec.rs:1930 [INFO] [stderr] 13: 0x562945670f07 - as core::iter::traits::collect::FromIterator>::from_iter::hdfdf2ee6e084fe8e [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/liballoc/vec.rs:1831 [INFO] [stderr] 14: 0x56294568169a - core::iter::traits::iterator::Iterator::collect::h462b298fc18017af [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libcore/iter/traits/iterator.rs:1464 [INFO] [stderr] 15: 0x562945683b2e - grabbag::iter::take_exactly::test_take_exactly::{{closure}}::h787297c692bb1285 [INFO] [stderr] at src/iter/take_exactly.rs:90 [INFO] [stderr] 16: 0x5629456a0068 - std::sys_common::backtrace::__rust_begin_short_backtrace::h6be33ae4c8119ab7 [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/sys_common/backtrace.rs:77 [INFO] [stderr] 17: 0x562945687795 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::he711955ee894804b [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/thread/mod.rs:470 [INFO] [stderr] 18: 0x562945678748 - as core::ops::function::FnOnce<()>>::call_once::h31562ba9825f4110 [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panic.rs:315 [INFO] [stderr] 19: 0x562945692537 - std::panicking::try::do_call::h5f1aab2378615fd7 [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panicking.rs:296 [INFO] [stderr] 20: 0x5629456fdf3a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 21: 0x5629456923b0 - std::panicking::try::hb8ca9b1f5b30ac39 [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panicking.rs:275 [INFO] [stderr] 22: 0x562945678888 - std::panic::catch_unwind::h54c423ab9b7ee4de [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panic.rs:394 [INFO] [stderr] 23: 0x562945687572 - std::thread::Builder::spawn_unchecked::{{closure}}::h81acf8df8ee9a6b1 [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/thread/mod.rs:469 [INFO] [stderr] 24: 0x5629456a65c3 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h7a69458ae341c8d4 [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libcore/ops/function.rs:235 [INFO] [stderr] 25: 0x5629456f0caf - as core::ops::function::FnOnce>::call_once::h2877b2aefb0fd627 [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/liballoc/boxed.rs:787 [INFO] [stderr] 26: 0x5629456fd5e0 - as core::ops::function::FnOnce>::call_once::h13f473dbcdaa0fef [INFO] [stderr] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/liballoc/boxed.rs:787 [INFO] [stderr] 27: 0x5629456fd5e0 - std::sys_common::thread::start_thread::h562a7c4953cb1d31 [INFO] [stderr] at src/libstd/sys_common/thread.rs:13 [INFO] [stderr] 28: 0x5629456fd5e0 - std::sys::unix::thread::Thread::new::thread_start::h382c6ae14181d163 [INFO] [stderr] at src/libstd/sys/unix/thread.rs:79 [INFO] [stderr] 29: 0x7f0efb8e96db - start_thread [INFO] [stderr] 30: 0x7f0efb3fa88f - __clone [INFO] [stderr] 31: 0x0 - [INFO] [stdout] test iter::take_exactly::test_take_exactly ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Doc-tests grabbag [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test src/iter/group_by.rs - iter::group_by::GroupByIterator::group_by (line 23) ... ok [INFO] [stdout] test src/iter/accumulate.rs - iter::accumulate::AccumulateIterator::accumulate (line 34) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "d6e2d0c0864577d1d4b969cd0ccdbb4c497a89982587d1771632b04f2d306124"` [INFO] running `"docker" "rm" "-f" "d6e2d0c0864577d1d4b969cd0ccdbb4c497a89982587d1771632b04f2d306124"` [INFO] [stdout] d6e2d0c0864577d1d4b969cd0ccdbb4c497a89982587d1771632b04f2d306124