[INFO] crate twang 0.2.0 is already in cache [INFO] extracting crate twang 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/twang/0.2.0 [INFO] extracting crate twang 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/twang/0.2.0 [INFO] validating manifest of twang-0.2.0 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 twang-0.2.0 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 twang-0.2.0 [INFO] finished frobbing twang-0.2.0 [INFO] frobbed toml for twang-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/twang/0.2.0/Cargo.toml [INFO] started frobbing twang-0.2.0 [INFO] finished frobbing twang-0.2.0 [INFO] frobbed toml for twang-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/twang/0.2.0/Cargo.toml [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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] testing twang-0.2.0 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/twang/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" "+1.37.0" "build" "--frozen"` [INFO] [stdout] b9c6dda4c6a321fd1d9e7f905cb3cbc4cbf542a3d234d0257c0ff0a4a364ee04 [INFO] running `"docker" "start" "-a" "b9c6dda4c6a321fd1d9e7f905cb3cbc4cbf542a3d234d0257c0ff0a4a364ee04"` [INFO] [stderr] Compiling twang v0.2.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused return value of `core::num::::wrapping_add` that must be used [INFO] [stderr] --> src/pink.rs:278:5 [INFO] [stderr] | [INFO] [stderr] 278 | self.pncnt.wrapping_add(1); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this returns the result of the operation, without modifying the original [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.79s [INFO] running `"docker" "inspect" "b9c6dda4c6a321fd1d9e7f905cb3cbc4cbf542a3d234d0257c0ff0a4a364ee04"` [INFO] running `"docker" "rm" "-f" "b9c6dda4c6a321fd1d9e7f905cb3cbc4cbf542a3d234d0257c0ff0a4a364ee04"` [INFO] [stdout] b9c6dda4c6a321fd1d9e7f905cb3cbc4cbf542a3d234d0257c0ff0a4a364ee04 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/twang/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" "+1.37.0" "test" "--frozen" "--no-run"` [INFO] [stdout] c377fd1038e4c313076b929a23b63dad1c0b567f6dc23b391ef8e1fdbe6679fd [INFO] running `"docker" "start" "-a" "c377fd1038e4c313076b929a23b63dad1c0b567f6dc23b391ef8e1fdbe6679fd"` [INFO] [stderr] Compiling nix v0.9.0 [INFO] [stderr] Compiling adi_speaker v0.0.1 [INFO] [stderr] Compiling adi v0.12.0 [INFO] [stderr] Compiling twang v0.2.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused return value of `core::num::::wrapping_add` that must be used [INFO] [stderr] --> src/pink.rs:278:5 [INFO] [stderr] | [INFO] [stderr] 278 | self.pncnt.wrapping_add(1); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this returns the result of the operation, without modifying the original [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.28s [INFO] running `"docker" "inspect" "c377fd1038e4c313076b929a23b63dad1c0b567f6dc23b391ef8e1fdbe6679fd"` [INFO] running `"docker" "rm" "-f" "c377fd1038e4c313076b929a23b63dad1c0b567f6dc23b391ef8e1fdbe6679fd"` [INFO] [stdout] c377fd1038e4c313076b929a23b63dad1c0b567f6dc23b391ef8e1fdbe6679fd [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/twang/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" "+1.37.0" "test" "--frozen"` [INFO] [stdout] c909ae7866e5eb31d22d05a2c855cddb75dda23ec967f091da30335a5ff204ee [INFO] running `"docker" "start" "-a" "c909ae7866e5eb31d22d05a2c855cddb75dda23ec967f091da30335a5ff204ee"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running /opt/crater/target/debug/deps/twang-2251b62a46e8f325 [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] [stderr] Doc-tests twang [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - (line 9) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 9) stdout ---- [INFO] [stdout] Test executable failed (exit code 101). [INFO] [stdout] [INFO] [stdout] stderr: [INFO] [stdout] ALSA lib confmisc.c:767:(parse_card) cannot find card '0' [INFO] [stdout] ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory [INFO] [stdout] ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings [INFO] [stdout] ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory [INFO] [stdout] ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name [INFO] [stdout] ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory [INFO] [stdout] ALSA lib conf.c:5007:(snd_config_expand) Evaluate error: No such file or directory [INFO] [stdout] ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM default [INFO] [stdout] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Error("snd_pcm_open", Sys(ENOENT))', src/libcore/result.rs:999:5 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55fbf4342a5b - 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: 0x55fbf4342a5b - 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: 0x55fbf4342a5b - std::sys_common::backtrace::_print::h527254ae44989167 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stdout] 3: 0x55fbf4342a5b - std::sys_common::backtrace::print::he85dd5ddddf46503 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stdout] 4: 0x55fbf4342a5b - std::panicking::default_hook::{{closure}}::h847a2eb38b396f14 [INFO] [stdout] at src/libstd/panicking.rs:200 [INFO] [stdout] 5: 0x55fbf4342737 - std::panicking::default_hook::h2ca0f9a30a0e206b [INFO] [stdout] at src/libstd/panicking.rs:214 [INFO] [stdout] 6: 0x55fbf4343120 - std::panicking::rust_panic_with_hook::hffcefc09751839d1 [INFO] [stdout] at src/libstd/panicking.rs:477 [INFO] [stdout] 7: 0x55fbf4342ca2 - std::panicking::continue_panic_fmt::hc0f142c930c846fc [INFO] [stdout] at src/libstd/panicking.rs:384 [INFO] [stdout] 8: 0x55fbf4342b86 - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:311 [INFO] [stdout] 9: 0x55fbf4356c9d - core::panicking::panic_fmt::h2daf88b2616ca2b2 [INFO] [stdout] at src/libcore/panicking.rs:85 [INFO] [stdout] 10: 0x55fbf4330e5a - core::result::unwrap_failed::hcfb567a89dd21aac [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/macros.rs:18 [INFO] [stdout] 11: 0x55fbf433376f - core::result::Result::unwrap::h4e842b0f58296e71 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/result.rs:800 [INFO] [stdout] 12: 0x55fbf4328200 - adi_speaker::Speaker::new::hf986f953e6d8f0d4 [INFO] [stdout] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/adi_speaker-0.0.1/src/lib.rs:51 [INFO] [stdout] 13: 0x55fbf4327898 - rust_out::main::h1cf9155cb6204ee7 [INFO] [stdout] 14: 0x55fbf4327443 - std::rt::lang_start::{{closure}}::h6ad5bf6913459b3e [INFO] [stdout] 15: 0x55fbf4342b73 - std::rt::lang_start_internal::{{closure}}::h447d8812e3ee306d [INFO] [stdout] at src/libstd/rt.rs:49 [INFO] [stdout] 16: 0x55fbf4342b73 - std::panicking::try::do_call::h4a61cb372364c745 [INFO] [stdout] at src/libstd/panicking.rs:296 [INFO] [stdout] 17: 0x55fbf434433a - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:82 [INFO] [stdout] 18: 0x55fbf434362d - std::panicking::try::hdf71f938885bca42 [INFO] [stdout] at src/libstd/panicking.rs:275 [INFO] [stdout] 19: 0x55fbf434362d - std::panic::catch_unwind::h7e85dbf162b1611a [INFO] [stdout] at src/libstd/panic.rs:394 [INFO] [stdout] 20: 0x55fbf434362d - std::rt::lang_start_internal::h1e06cc26b9fc25ea [INFO] [stdout] at src/libstd/rt.rs:48 [INFO] [stdout] 21: 0x55fbf4327425 - std::rt::lang_start::he873873cea7d311a [INFO] [stdout] 22: 0x55fbf4327c9b - main [INFO] [stdout] 23: 0x7f86159d42e1 - __libc_start_main [INFO] [stdout] 24: 0x55fbf43272ea - _start [INFO] [stdout] 25: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - (line 9) [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" "c909ae7866e5eb31d22d05a2c855cddb75dda23ec967f091da30335a5ff204ee"` [INFO] running `"docker" "rm" "-f" "c909ae7866e5eb31d22d05a2c855cddb75dda23ec967f091da30335a5ff204ee"` [INFO] [stdout] c909ae7866e5eb31d22d05a2c855cddb75dda23ec967f091da30335a5ff204ee