[INFO] crate serial_enumerate 0.1.0 is already in cache [INFO] extracting crate serial_enumerate 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/serial_enumerate/0.1.0 [INFO] extracting crate serial_enumerate 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/serial_enumerate/0.1.0 [INFO] validating manifest of serial_enumerate-0.1.0 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 serial_enumerate-0.1.0 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 serial_enumerate-0.1.0 [INFO] finished frobbing serial_enumerate-0.1.0 [INFO] frobbed toml for serial_enumerate-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/serial_enumerate/0.1.0/Cargo.toml [INFO] started frobbing serial_enumerate-0.1.0 [INFO] finished frobbing serial_enumerate-0.1.0 [INFO] frobbed toml for serial_enumerate-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/serial_enumerate/0.1.0/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 serial_enumerate-0.1.0 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-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/serial_enumerate/0.1.0:/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] d01ec14f288741532f51bac81083b5682e9626aaaf4bc336f69f2cb930c1fa8c [INFO] running `"docker" "start" "-a" "d01ec14f288741532f51bac81083b5682e9626aaaf4bc336f69f2cb930c1fa8c"` [INFO] [stderr] Compiling serial_enumerate v0.1.0 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.93s [INFO] running `"docker" "inspect" "d01ec14f288741532f51bac81083b5682e9626aaaf4bc336f69f2cb930c1fa8c"` [INFO] running `"docker" "rm" "-f" "d01ec14f288741532f51bac81083b5682e9626aaaf4bc336f69f2cb930c1fa8c"` [INFO] [stdout] d01ec14f288741532f51bac81083b5682e9626aaaf4bc336f69f2cb930c1fa8c [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/serial_enumerate/0.1.0:/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] 2b452f361a4e1ba0386844d378a1a867d90e43e5d4a94e23c51458a3aae1c267 [INFO] running `"docker" "start" "-a" "2b452f361a4e1ba0386844d378a1a867d90e43e5d4a94e23c51458a3aae1c267"` [INFO] [stderr] Compiling serial_enumerate v0.1.0 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.83s [INFO] running `"docker" "inspect" "2b452f361a4e1ba0386844d378a1a867d90e43e5d4a94e23c51458a3aae1c267"` [INFO] running `"docker" "rm" "-f" "2b452f361a4e1ba0386844d378a1a867d90e43e5d4a94e23c51458a3aae1c267"` [INFO] [stdout] 2b452f361a4e1ba0386844d378a1a867d90e43e5d4a94e23c51458a3aae1c267 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/serial_enumerate/0.1.0:/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] ca94a9b60ee0a753a069575995404e81295a4ad975b9289368f4c098a8fb695a [INFO] running `"docker" "start" "-a" "ca94a9b60ee0a753a069575995404e81295a4ad975b9289368f4c098a8fb695a"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running /opt/crater/target/debug/deps/serial_enumerate-062609009a2a8447 [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] [stderr] Doc-tests serial_enumerate [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - (line 4) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 4) stdout ---- [INFO] [stdout] thread 'src/lib.rs - (line 4)' panicked at 'test executable failed: [INFO] [stdout] [INFO] [stdout] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Error(Msg("/dev/serial not found"), (Some(Os { code: 2, kind: NotFound, message: "No such file or directory" }), Some(stack backtrace: [INFO] [stdout] 0: 0x557007ee2b46 - backtrace::backtrace::libunwind::trace::hd68f5cdaa1672d25 [INFO] [stdout] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.2.3/src/backtrace/libunwind.rs:54 [INFO] [stdout] - backtrace::backtrace::trace::heb6b45b0043806ac [INFO] [stdout] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.2.3/src/backtrace/mod.rs:70 [INFO] [stdout] 1: 0x557007ed8bd3 - backtrace::capture::Backtrace::new::ha9319c15803b7b48 [INFO] [stdout] at /opt/crater/target/debug/build/backtrace-bd02fdcfbb0e3990/out/capture.rs:79 [INFO] [stdout] 2: 0x557007ed53b4 - error_chain::make_backtrace::h843d09fd6f19e2f1 [INFO] [stdout] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/error-chain-0.5.0/src/lib.rs:684 [INFO] [stdout] 3: 0x557007ecd979 - as serial_enumerate::errors::ChainErr>::chain_err::{{closure}}::{{closure}}::hd31cb6a01405c0ff [INFO] [stdout] at /opt/crater/workdir/<::error_chain::error_chain macros>:78 [INFO] [stdout] 4: 0x557007ed3297 - core::option::Option::unwrap_or_else::h83f089437a8f8b97 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/option.rs:388 [INFO] [stdout] 5: 0x557007ecda8f - as serial_enumerate::errors::ChainErr>::chain_err::{{closure}}::h0bcae38fed5076eb [INFO] [stdout] at /opt/crater/workdir/<::error_chain::error_chain macros>:77 [INFO] [stdout] 6: 0x557007ed28de - core::result::Result::map_err::h84c5adb4c1047bf8 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/result.rs:522 [INFO] [stdout] 7: 0x557007ed2ec0 - as serial_enumerate::errors::ChainErr>::chain_err::hdded9c7e4c37d681 [INFO] [stdout] at /opt/crater/workdir/<::error_chain::error_chain macros>:74 [INFO] [stdout] 8: 0x557007ed36d6 - serial_enumerate::enumerate_serial_ports::h37af48a5d6d6b567 [INFO] [stdout] at src/lib.rs:46 [INFO] [stdout] 9: 0x557007ecc459 - rust_out::main::h1cf9155cb6204ee7 [INFO] [stdout] 10: 0x557007ecc8f2 - std::rt::lang_start::{{closure}}::h06d0fcfbcae13882 [INFO] [stdout] 11: 0x557007f1c282 - std::rt::lang_start_internal::{{closure}}::h3a7adfabc7c47a5f [INFO] [stdout] at src/libstd/rt.rs:49 [INFO] [stdout] - std::panicking::try::do_call::hc3d8373a0b215f51 [INFO] [stdout] at src/libstd/panicking.rs:293 [INFO] [stdout] 12: 0x557007f1e729 - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:85 [INFO] [stdout] 13: 0x557007f1cd8c - std::panicking::try::hfb06c315006b63ac [INFO] [stdout] at src/libstd/panicking.rs:272 [INFO] [stdout] - std::panic::catch_unwind::h6cd8469da971482b [INFO] [stdout] at src/libstd/panic.rs:394 [INFO] [stdout] - std::rt::lang_start_internal::he5218c8b95d395f2 [INFO] [stdout] at src/libstd/rt.rs:48 [INFO] [stdout] 14: 0x557007ecc8d4 - std::rt::lang_start::hdef4740723826a9e [INFO] [stdout] 15: 0x557007ecc7aa - main [INFO] [stdout] 16: 0x7f29064a62e0 - __libc_start_main [INFO] [stdout] 17: 0x557007ecc269 - _start [INFO] [stdout] 18: 0x0 - )))', src/libcore/result.rs:999:5 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x557007f1d393 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h6485381528590a55 [INFO] [stdout] at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39 [INFO] [stdout] 1: 0x557007f18f4b - std::sys_common::backtrace::_print::h49a82ae9552e35c7 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:71 [INFO] [stdout] 2: 0x557007f1c1d6 - std::panicking::default_hook::{{closure}}::he20974adbefcc046 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stdout] at src/libstd/panicking.rs:197 [INFO] [stdout] 3: 0x557007f1bf69 - std::panicking::default_hook::he4af6af4ac7fef7b [INFO] [stdout] at src/libstd/panicking.rs:211 [INFO] [stdout] 4: 0x557007f1c87f - std::panicking::rust_panic_with_hook::h057ff03eb4c8000f [INFO] [stdout] at src/libstd/panicking.rs:474 [INFO] [stdout] 5: 0x557007f1c401 - std::panicking::continue_panic_fmt::ha6d6ae144369025b [INFO] [stdout] at src/libstd/panicking.rs:381 [INFO] [stdout] 6: 0x557007f1c2e5 - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:308 [INFO] [stdout] 7: 0x557007f2cf9c - core::panicking::panic_fmt::hc4f83bfed80aeabd [INFO] [stdout] at src/libcore/panicking.rs:85 [INFO] [stdout] 8: 0x557007ecca37 - core::result::unwrap_failed::h6a76503649bee0ad [INFO] [stdout] 9: 0x557007eccb51 - core::result::Result::unwrap::h63e537fbb31969ed [INFO] [stdout] 10: 0x557007ecc479 - rust_out::main::h1cf9155cb6204ee7 [INFO] [stdout] 11: 0x557007ecc8f2 - std::rt::lang_start::{{closure}}::h06d0fcfbcae13882 [INFO] [stdout] 12: 0x557007f1c282 - std::panicking::try::do_call::hc3d8373a0b215f51 [INFO] [stdout] at src/libstd/rt.rs:49 [INFO] [stdout] at src/libstd/panicking.rs:293 [INFO] [stdout] 13: 0x557007f1e729 - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:85 [INFO] [stdout] 14: 0x557007f1cd8c - std::rt::lang_start_internal::he5218c8b95d395f2 [INFO] [stdout] at src/libstd/panicking.rs:272 [INFO] [stdout] at src/libstd/panic.rs:394 [INFO] [stdout] at src/libstd/rt.rs:48 [INFO] [stdout] 15: 0x557007ecc8d4 - std::rt::lang_start::hdef4740723826a9e [INFO] [stdout] 16: 0x557007ecc7aa - main [INFO] [stdout] 17: 0x7f29064a62e0 - __libc_start_main [INFO] [stdout] 18: 0x557007ecc269 - _start [INFO] [stdout] 19: 0x0 - [INFO] [stdout] [INFO] [stdout] ', src/librustdoc/test.rs:341:17 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x7f487e414823 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h6485381528590a55 [INFO] [stdout] at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39 [INFO] [stdout] 1: 0x7f487e40c4cb - std::sys_common::backtrace::_print::h49a82ae9552e35c7 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:71 [INFO] [stdout] 2: 0x7f487e410a56 - std::panicking::default_hook::{{closure}}::he20974adbefcc046 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stdout] at src/libstd/panicking.rs:197 [INFO] [stdout] 3: 0x7f487e41077e - std::panicking::default_hook::he4af6af4ac7fef7b [INFO] [stdout] at src/libstd/panicking.rs:208 [INFO] [stdout] 4: 0x7f487e41115f - std::panicking::rust_panic_with_hook::h057ff03eb4c8000f [INFO] [stdout] at src/libstd/panicking.rs:474 [INFO] [stdout] 5: 0x7f487e410ce1 - std::panicking::continue_panic_fmt::ha6d6ae144369025b [INFO] [stdout] at src/libstd/panicking.rs:381 [INFO] [stdout] 6: 0x7f487e410c2e - std::panicking::begin_panic_fmt::he54eae869ed71eb1 [INFO] [stdout] at src/libstd/panicking.rs:336 [INFO] [stdout] 7: 0x55641be8e9c8 - rustdoc::test::run_test::h29a20600da33f74f [INFO] [stdout] at src/librustdoc/test.rs:341 [INFO] [stdout] 8: 0x55641be827c9 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h84ad3bdb52e265e9 [INFO] [stdout] at src/librustdoc/test.rs:715 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/ops/function.rs:231 [INFO] [stdout] 9: 0x7f487f997b7e - as core::ops::function::FnOnce>::call_once::h6b004fa8f4fc1608 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/liballoc/boxed.rs:704 [INFO] [stdout] 10: 0x7f487f997b7e - as core::ops::function::FnOnce>::call_once::h6b004fa8f4fc1608 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/liballoc/boxed.rs:704 [INFO] [stdout] 11: 0x7f487e422169 - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:85 [INFO] [stdout] 12: 0x7f487f9b2f87 - test::run_test::run_test_inner::{{closure}}::h9a4d23c41d058d37 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panicking.rs:272 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panic.rs:394 [INFO] [stdout] at src/libtest/lib.rs:1468 [INFO] [stdout] 13: 0x7f487f98c9a4 - std::sys_common::backtrace::__rust_begin_short_backtrace::h3765d76361a33ff7 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/sys_common/backtrace.rs:136 [INFO] [stdout] 14: 0x7f487f990a54 - std::panicking::try::do_call::h6f86e980b52f74d5 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/thread/mod.rs:470 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panic.rs:315 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panicking.rs:293 [INFO] [stdout] 15: 0x7f487e422169 - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:85 [INFO] [stdout] 16: 0x7f487f991551 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h760b8a2b155f54c3 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panicking.rs:272 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panic.rs:394 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/thread/mod.rs:469 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/ops/function.rs:231 [INFO] [stdout] 17: 0x7f487e3f336e - as core::ops::function::FnOnce>::call_once::h805c3cc89d534c05 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/liballoc/boxed.rs:704 [INFO] [stdout] 18: 0x7f487e420ddf - std::sys::unix::thread::Thread::new::thread_start::h6f10b78f26c98dc6 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/liballoc/boxed.rs:704 [INFO] [stdout] at src/libstd/sys_common/thread.rs:13 [INFO] [stdout] at src/libstd/sys/unix/thread.rs:79 [INFO] [stdout] 19: 0x7f487df8a4a3 - start_thread [INFO] [stdout] 20: 0x7f487dab5d0e - __clone [INFO] [stdout] 21: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - (line 4) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `"docker" "inspect" "ca94a9b60ee0a753a069575995404e81295a4ad975b9289368f4c098a8fb695a"` [INFO] running `"docker" "rm" "-f" "ca94a9b60ee0a753a069575995404e81295a4ad975b9289368f4c098a8fb695a"` [INFO] [stdout] ca94a9b60ee0a753a069575995404e81295a4ad975b9289368f4c098a8fb695a