[INFO] updating cached repository wilfreddenton/parity_problem [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/wilfreddenton/parity_problem [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/wilfreddenton/parity_problem" "work/ex/beta-1.38-1/sources/1.37.0/gh/wilfreddenton/parity_problem"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/wilfreddenton/parity_problem'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/wilfreddenton/parity_problem" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wilfreddenton/parity_problem"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of wilfreddenton/parity_problem on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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/beta-1.38-1/sources/1.37.0/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/beta-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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needs to be updated but --locked was passed to prevent this [INFO] the lockfile is outdated, regenerating it [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing wilfreddenton/parity_problem against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=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" "+1.37.0" "build" "--frozen"` [INFO] [stdout] 58ea02f5a9b053b1b56cc7f089e09a58d29a0c32d033c83553083adfa6f10d63 [INFO] running `"docker" "start" "-a" "58ea02f5a9b053b1b56cc7f089e09a58d29a0c32d033c83553083adfa6f10d63"` [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 1.56s [INFO] running `"docker" "inspect" "58ea02f5a9b053b1b56cc7f089e09a58d29a0c32d033c83553083adfa6f10d63"` [INFO] running `"docker" "rm" "-f" "58ea02f5a9b053b1b56cc7f089e09a58d29a0c32d033c83553083adfa6f10d63"` [INFO] [stdout] 58ea02f5a9b053b1b56cc7f089e09a58d29a0c32d033c83553083adfa6f10d63 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=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" "+1.37.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 37f105106b05b3c7a655b2d0d3dbfe1164cdc4306d7295284b407dd66bdc1323 [INFO] running `"docker" "start" "-a" "37f105106b05b3c7a655b2d0d3dbfe1164cdc4306d7295284b407dd66bdc1323"` [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 1.12s [INFO] running `"docker" "inspect" "37f105106b05b3c7a655b2d0d3dbfe1164cdc4306d7295284b407dd66bdc1323"` [INFO] running `"docker" "rm" "-f" "37f105106b05b3c7a655b2d0d3dbfe1164cdc4306d7295284b407dd66bdc1323"` [INFO] [stdout] 37f105106b05b3c7a655b2d0d3dbfe1164cdc4306d7295284b407dd66bdc1323 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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=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" "+1.37.0" "test" "--frozen"` [INFO] [stdout] d63c49f22b55c43a757f4777a43f703546b91eab3d7edb64e530d6f94473cf3e [INFO] running `"docker" "start" "-a" "d63c49f22b55c43a757f4777a43f703546b91eab3d7edb64e530d6f94473cf3e"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running /opt/crater/target/debug/deps/parity_problem-e2213245cfcb57f1 [INFO] [stdout] [INFO] [stdout] running 5 tests [INFO] [stdout] test util::tests::test_binary_permutations ... ok [INFO] [stdout] test network::tests::test_update_weights ... ok [INFO] [stdout] test network::tests::test_new_network ... ok [INFO] [stdout] test util::tests::test_expected_output ... ok [INFO] [stdout] test util::tests::test_output_error ... FAILED [INFO] [stderr] error: test failed, to rerun pass '--bin parity_problem' [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: 0x55ee5b5373cb - backtrace::backtrace::libunwind::trace::hfe5db90796807973 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stdout] 1: 0x55ee5b5373cb - backtrace::backtrace::trace_unsynchronized::h34b865a835594335 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x55ee5b5373cb - std::sys_common::backtrace::_print::h527254ae44989167 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stdout] 3: 0x55ee5b5373cb - std::sys_common::backtrace::print::he85dd5ddddf46503 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stdout] 4: 0x55ee5b5373cb - std::panicking::default_hook::{{closure}}::h847a2eb38b396f14 [INFO] [stdout] at src/libstd/panicking.rs:200 [INFO] [stdout] 5: 0x55ee5b53703a - std::panicking::default_hook::h2ca0f9a30a0e206b [INFO] [stdout] at src/libstd/panicking.rs:211 [INFO] [stdout] 6: 0x55ee5b537b40 - std::panicking::rust_panic_with_hook::hffcefc09751839d1 [INFO] [stdout] at src/libstd/panicking.rs:477 [INFO] [stdout] 7: 0x55ee5b5376c2 - std::panicking::continue_panic_fmt::hc0f142c930c846fc [INFO] [stdout] at src/libstd/panicking.rs:384 [INFO] [stdout] 8: 0x55ee5b53760f - std::panicking::begin_panic_fmt::ha6acf0ffd6d7f80d [INFO] [stdout] at src/libstd/panicking.rs:339 [INFO] [stdout] 9: 0x55ee5b4d6d99 - parity_problem::util::tests::test_output_error::h35b6ff55570f68f4 [INFO] [stdout] at src/util/mod.rs:87 [INFO] [stdout] 10: 0x55ee5b4d670a - parity_problem::util::tests::test_output_error::{{closure}}::h2c30df731da839c4 [INFO] [stdout] at src/util/mod.rs:82 [INFO] [stdout] 11: 0x55ee5b4c95ce - core::ops::function::FnOnce::call_once::hc1803b8527a5c39c [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/ops/function.rs:231 [INFO] [stdout] 12: 0x55ee5b4e5dbf - as core::ops::function::FnOnce>::call_once::h4a13ee3f0d7b4201 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:746 [INFO] [stdout] 13: 0x55ee5b53a13a - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:82 [INFO] [stdout] 14: 0x55ee5b5003b8 - std::panicking::try::h5a93466ab2078586 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:275 [INFO] [stdout] 15: 0x55ee5b5003b8 - std::panic::catch_unwind::h752cbeae6ac7bdea [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panic.rs:394 [INFO] [stdout] 16: 0x55ee5b5003b8 - test::run_test::run_test_inner::{{closure}}::h206c9c16936edaca [INFO] [stdout] at src/libtest/lib.rs:1466 [INFO] [stdout] 17: 0x55ee5b4db235 - std::sys_common::backtrace::__rust_begin_short_backtrace::hc7edbac42990d270 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/sys_common/backtrace.rs:77 [INFO] [stdout] 18: 0x55ee5b4df2f5 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::he53c58e7adee87af [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/thread/mod.rs:470 [INFO] [stdout] 19: 0x55ee5b4df2f5 - as core::ops::function::FnOnce<()>>::call_once::h1aff7c42b6bb3726 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panic.rs:315 [INFO] [stdout] 20: 0x55ee5b4df2f5 - std::panicking::try::do_call::h41f8559f88100f6c [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:296 [INFO] [stdout] 21: 0x55ee5b53a13a - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:82 [INFO] [stdout] 22: 0x55ee5b4df9f2 - std::panicking::try::hb54ba808181fe352 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:275 [INFO] [stdout] 23: 0x55ee5b4df9f2 - std::panic::catch_unwind::h555ccf4e835e93f4 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panic.rs:394 [INFO] [stdout] 24: 0x55ee5b4df9f2 - std::thread::Builder::spawn_unchecked::{{closure}}::hd4dae6e19e80fc1a [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/thread/mod.rs:469 [INFO] [stdout] 25: 0x55ee5b4df9f2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hc35d54c07710e1a1 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/ops/function.rs:231 [INFO] [stdout] 26: 0x55ee5b52d08f - as core::ops::function::FnOnce>::call_once::h42806b83647d4c79 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:746 [INFO] [stdout] 27: 0x55ee5b539890 - as core::ops::function::FnOnce>::call_once::h83c921c8e826dd1d [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:746 [INFO] [stdout] 28: 0x55ee5b539890 - std::sys_common::thread::start_thread::h2613204ce513782e [INFO] [stdout] at src/libstd/sys_common/thread.rs:13 [INFO] [stdout] 29: 0x55ee5b539890 - std::sys::unix::thread::Thread::new::thread_start::h4570080769500bcd [INFO] [stdout] at src/libstd/sys/unix/thread.rs:79 [INFO] [stdout] 30: 0x7f71afbed4a4 - start_thread [INFO] [stdout] 31: 0x7f71af718d0f - __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] running `"docker" "inspect" "d63c49f22b55c43a757f4777a43f703546b91eab3d7edb64e530d6f94473cf3e"` [INFO] running `"docker" "rm" "-f" "d63c49f22b55c43a757f4777a43f703546b91eab3d7edb64e530d6f94473cf3e"` [INFO] [stdout] d63c49f22b55c43a757f4777a43f703546b91eab3d7edb64e530d6f94473cf3e