[INFO] cloning repository wilfreddenton/parity_problem [INFO] running `"git" "clone" "--bare" "git://github.com/wilfreddenton/parity_problem.git" "work/cache/sources/gh/wilfreddenton/parity_problem"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/wilfreddenton/parity_problem'... [INFO] running `"git" "clone" "work/cache/sources/gh/wilfreddenton/parity_problem" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/wilfreddenton/parity_problem"` [INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/wilfreddenton/parity_problem'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/wilfreddenton/parity_problem" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/wilfreddenton/parity_problem"` [INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/wilfreddenton/parity_problem'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 549f58499cf0fbd8936a07fe28ca47f75adb8eaf [INFO] sha for GitHub repo wilfreddenton/parity_problem: 549f58499cf0fbd8936a07fe28ca47f75adb8eaf [INFO] validating manifest of wilfreddenton/parity_problem on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of wilfreddenton/parity_problem on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing wilfreddenton/parity_problem [INFO] finished frobbing wilfreddenton/parity_problem [INFO] frobbed toml for wilfreddenton/parity_problem written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/wilfreddenton/parity_problem/Cargo.toml [INFO] started frobbing wilfreddenton/parity_problem [INFO] finished frobbing wilfreddenton/parity_problem [INFO] frobbed toml for wilfreddenton/parity_problem written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/wilfreddenton/parity_problem/Cargo.toml [INFO] crate wilfreddenton/parity_problem already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/wilfreddenton/parity_problem/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] the lockfile is outdated, regenerating it [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing wilfreddenton/parity_problem against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-7/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/wilfreddenton/parity_problem:/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=forbid" "-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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"` [INFO] [stdout] ea07a2460f98a8c31060ec25f7db33cc809fa44046f04b5c6d3265d9903c21ad [INFO] running `"docker" "start" "-a" "ea07a2460f98a8c31060ec25f7db33cc809fa44046f04b5c6d3265d9903c21ad"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] [stderr] Compiling parity_problem v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:42:9 [INFO] [stderr] | [INFO] [stderr] 42 | let mut stdin = io::stdin(); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `pretty_print` [INFO] [stderr] --> src/network/mod.rs:153:5 [INFO] [stderr] | [INFO] [stderr] 153 | pub fn pretty_print(network: &Network) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:50:5 [INFO] [stderr] | [INFO] [stderr] 50 | io::stdout().flush(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:57:13 [INFO] [stderr] | [INFO] [stderr] 57 | io::stdout().flush(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.88s [INFO] running `"docker" "inspect" "ea07a2460f98a8c31060ec25f7db33cc809fa44046f04b5c6d3265d9903c21ad"` [INFO] running `"docker" "rm" "-f" "ea07a2460f98a8c31060ec25f7db33cc809fa44046f04b5c6d3265d9903c21ad"` [INFO] [stdout] ea07a2460f98a8c31060ec25f7db33cc809fa44046f04b5c6d3265d9903c21ad [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-7/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/wilfreddenton/parity_problem:/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=forbid" "-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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"` [INFO] [stdout] 1c88d14ff73f98f3a6fc284c425888452d43083e94f82607c6bd5f555662f133 [INFO] running `"docker" "start" "-a" "1c88d14ff73f98f3a6fc284c425888452d43083e94f82607c6bd5f555662f133"` [INFO] [stderr] Compiling parity_problem v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:42:9 [INFO] [stderr] | [INFO] [stderr] 42 | let mut stdin = io::stdin(); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `pretty_print` [INFO] [stderr] --> src/network/mod.rs:153:5 [INFO] [stderr] | [INFO] [stderr] 153 | pub fn pretty_print(network: &Network) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:50:5 [INFO] [stderr] | [INFO] [stderr] 50 | io::stdout().flush(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:57:13 [INFO] [stderr] | [INFO] [stderr] 57 | io::stdout().flush(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.74s [INFO] running `"docker" "inspect" "1c88d14ff73f98f3a6fc284c425888452d43083e94f82607c6bd5f555662f133"` [INFO] running `"docker" "rm" "-f" "1c88d14ff73f98f3a6fc284c425888452d43083e94f82607c6bd5f555662f133"` [INFO] [stdout] 1c88d14ff73f98f3a6fc284c425888452d43083e94f82607c6bd5f555662f133 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-7/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/wilfreddenton/parity_problem:/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=forbid" "-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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen"` [INFO] [stdout] c4a21e2aeceaba692b55b9d294ecc05224fe11b46c8bc89a181fe7b1493c167f [INFO] running `"docker" "start" "-a" "c4a21e2aeceaba692b55b9d294ecc05224fe11b46c8bc89a181fe7b1493c167f"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stdout] [INFO] [stdout] running 5 tests [INFO] [stdout] test network::tests::test_update_weights ... ok [INFO] [stdout] test util::tests::test_expected_output ... ok [INFO] [stderr] Running /opt/crater/target/debug/deps/parity_problem-e0c7bb5cc94024b8 [INFO] [stdout] test util::tests::test_binary_permutations ... ok [INFO] [stdout] test network::tests::test_new_network ... ok [INFO] [stdout] test util::tests::test_output_error ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- util::tests::test_output_error stdout ---- [INFO] [stdout] thread 'util::tests::test_output_error' panicked at 'assertion failed: `(left == right)` [INFO] [stdout] left: `3.0`, [INFO] [stdout] right: `4.0`', src/util/mod.rs:87:13 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55b1d079d13b - backtrace::backtrace::libunwind::trace::hcbf63b8d794b15f4 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stdout] 1: 0x55b1d079d13b - backtrace::backtrace::trace_unsynchronized::h681e1cb201a9972d [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x55b1d079d13b - std::sys_common::backtrace::_print::hd27175ce39811176 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stdout] 3: 0x55b1d079d13b - std::sys_common::backtrace::print::h117e2eebf9a1e122 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stdout] 4: 0x55b1d079d13b - std::panicking::default_hook::{{closure}}::h6369b988ee675335 [INFO] [stdout] at src/libstd/panicking.rs:198 [INFO] [stdout] 5: 0x55b1d079cdcf - std::panicking::default_hook::hfaefd2bea4c25f9e [INFO] [stdout] at src/libstd/panicking.rs:209 [INFO] [stdout] 6: 0x55b1d079d8b0 - std::panicking::rust_panic_with_hook::h02c52718165ccced [INFO] [stdout] at src/libstd/panicking.rs:475 [INFO] [stdout] 7: 0x55b1d079d432 - std::panicking::continue_panic_fmt::h9e135674c1df51b4 [INFO] [stdout] at src/libstd/panicking.rs:382 [INFO] [stdout] 8: 0x55b1d079d37f - std::panicking::begin_panic_fmt::h7b7b130b87f3cbeb [INFO] [stdout] at src/libstd/panicking.rs:337 [INFO] [stdout] 9: 0x55b1d073cdd2 - parity_problem::util::tests::test_output_error::h949b95ec5274bafe [INFO] [stdout] at src/util/mod.rs:87 [INFO] [stdout] 10: 0x55b1d073c73a - parity_problem::util::tests::test_output_error::{{closure}}::h7b413bbf753e08ad [INFO] [stdout] at src/util/mod.rs:82 [INFO] [stdout] 11: 0x55b1d072f22e - core::ops::function::FnOnce::call_once::h64756bd0a76b45da [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libcore/ops/function.rs:231 [INFO] [stdout] 12: 0x55b1d074baaf - as core::ops::function::FnOnce>::call_once::h051e7835d417eabd [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/liballoc/boxed.rs:746 [INFO] [stdout] 13: 0x55b1d07a04ca - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:85 [INFO] [stdout] 14: 0x55b1d0766488 - std::panicking::try::h2a4c737ee7913c25 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panicking.rs:273 [INFO] [stdout] 15: 0x55b1d0766488 - std::panic::catch_unwind::hb4a850da3c0f461d [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panic.rs:388 [INFO] [stdout] 16: 0x55b1d0766488 - test::run_test::run_test_inner::{{closure}}::hf1081f8a70de250d [INFO] [stdout] at src/libtest/lib.rs:1466 [INFO] [stdout] 17: 0x55b1d0741025 - std::sys_common::backtrace::__rust_begin_short_backtrace::h342b596609fb99e3 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/sys_common/backtrace.rs:77 [INFO] [stdout] 18: 0x55b1d0744fb5 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h513520560543c60c [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/thread/mod.rs:470 [INFO] [stdout] 19: 0x55b1d0744fb5 - as core::ops::function::FnOnce<()>>::call_once::ha4e1c61c6177bb54 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panic.rs:309 [INFO] [stdout] 20: 0x55b1d0744fb5 - std::panicking::try::do_call::h0eb4a0e045c14646 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panicking.rs:294 [INFO] [stdout] 21: 0x55b1d07a04ca - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:85 [INFO] [stdout] 22: 0x55b1d07455d2 - std::panicking::try::h20774757cea1a66c [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panicking.rs:273 [INFO] [stdout] 23: 0x55b1d07455d2 - std::panic::catch_unwind::h38e40a373c8b5452 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panic.rs:388 [INFO] [stdout] 24: 0x55b1d07455d2 - std::thread::Builder::spawn_unchecked::{{closure}}::h9bfd91224a2fd035 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/thread/mod.rs:469 [INFO] [stdout] 25: 0x55b1d07455d2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::ha2d3b3105bb1d7d1 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libcore/ops/function.rs:231 [INFO] [stdout] 26: 0x55b1d079307f - as core::ops::function::FnOnce>::call_once::hc6099fbe1f2e9038 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/liballoc/boxed.rs:746 [INFO] [stdout] 27: 0x55b1d079fc10 - as core::ops::function::FnOnce>::call_once::h1b61db05dcd8ce54 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/liballoc/boxed.rs:746 [INFO] [stdout] 28: 0x55b1d079fc10 - std::sys_common::thread::start_thread::hd3ed9053e9fea488 [INFO] [stdout] at src/libstd/sys_common/thread.rs:13 [INFO] [stdout] 29: 0x55b1d079fc10 - std::sys::unix::thread::Thread::new::thread_start::hc17e4e4c7ed2fc8f [INFO] [stdout] at src/libstd/sys/unix/thread.rs:79 [INFO] [stdout] 30: 0x7f4dc39b34a4 - start_thread [INFO] [stdout] 31: 0x7f4dc34ded0f - __clone [INFO] [stdout] 32: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] util::tests::test_output_error [INFO] [stdout] [INFO] [stdout] test result: FAILED. 4 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--bin parity_problem' [INFO] running `"docker" "inspect" "c4a21e2aeceaba692b55b9d294ecc05224fe11b46c8bc89a181fe7b1493c167f"` [INFO] running `"docker" "rm" "-f" "c4a21e2aeceaba692b55b9d294ecc05224fe11b46c8bc89a181fe7b1493c167f"` [INFO] [stdout] c4a21e2aeceaba692b55b9d294ecc05224fe11b46c8bc89a181fe7b1493c167f