[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 beta-2019-08-13 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "build" "--frozen"` [INFO] [stdout] 7c5da0b7b9045b78a49291707048a7515cd77d4f1ca95937424256a32f2a7e16 [INFO] running `"docker" "start" "-a" "7c5da0b7b9045b78a49291707048a7515cd77d4f1ca95937424256a32f2a7e16"` [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 0.72s [INFO] running `"docker" "inspect" "7c5da0b7b9045b78a49291707048a7515cd77d4f1ca95937424256a32f2a7e16"` [INFO] running `"docker" "rm" "-f" "7c5da0b7b9045b78a49291707048a7515cd77d4f1ca95937424256a32f2a7e16"` [INFO] [stdout] 7c5da0b7b9045b78a49291707048a7515cd77d4f1ca95937424256a32f2a7e16 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"` [INFO] [stdout] aa08e543c142a1f466446fe19fe86d8800801e5eb5834bc5815be8c56e435c34 [INFO] running `"docker" "start" "-a" "aa08e543c142a1f466446fe19fe86d8800801e5eb5834bc5815be8c56e435c34"` [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 6.72s [INFO] running `"docker" "inspect" "aa08e543c142a1f466446fe19fe86d8800801e5eb5834bc5815be8c56e435c34"` [INFO] running `"docker" "rm" "-f" "aa08e543c142a1f466446fe19fe86d8800801e5eb5834bc5815be8c56e435c34"` [INFO] [stdout] aa08e543c142a1f466446fe19fe86d8800801e5eb5834bc5815be8c56e435c34 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen"` [INFO] [stdout] 9d23fb13248a2b001bd1432a90048d8b7373b3478875aa4a1c2b6841669c431c [INFO] running `"docker" "start" "-a" "9d23fb13248a2b001bd1432a90048d8b7373b3478875aa4a1c2b6841669c431c"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/twang-9c0fe0fca82e83a2 [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 twang [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:1084:5 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5562a902f52b - backtrace::backtrace::libunwind::trace::h23ae608c8b906c69 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88 [INFO] [stdout] 1: 0x5562a902f52b - backtrace::backtrace::trace_unsynchronized::h65b3ea295a85fd48 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x5562a902f52b - std::sys_common::backtrace::_print::h24f527b44b6cfc06 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stdout] 3: 0x5562a902f52b - std::sys_common::backtrace::print::h712608e4347fd64a [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stdout] 4: 0x5562a902f52b - std::panicking::default_hook::{{closure}}::h6c3d570c2b500048 [INFO] [stdout] at src/libstd/panicking.rs:200 [INFO] [stdout] 5: 0x5562a902f206 - std::panicking::default_hook::hb29963fb4747e0dd [INFO] [stdout] at src/libstd/panicking.rs:214 [INFO] [stdout] 6: 0x5562a902fbed - std::panicking::rust_panic_with_hook::hd1236c3083de823a [INFO] [stdout] at src/libstd/panicking.rs:477 [INFO] [stdout] 7: 0x5562a902f772 - std::panicking::continue_panic_fmt::he38ad41d6304a12c [INFO] [stdout] at src/libstd/panicking.rs:384 [INFO] [stdout] 8: 0x5562a902f656 - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:311 [INFO] [stdout] 9: 0x5562a904393d - core::panicking::panic_fmt::h1bc6de43c92ad80c [INFO] [stdout] at src/libcore/panicking.rs:85 [INFO] [stdout] 10: 0x5562a9043a37 - core::result::unwrap_failed::hd83f272814becce6 [INFO] [stdout] at src/libcore/result.rs:1084 [INFO] [stdout] 11: 0x5562a90180c9 - core::result::Result::unwrap::h317ba789e1fb9651 [INFO] [stdout] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libcore/result.rs:852 [INFO] [stdout] 12: 0x5562a901510c - adi_speaker::Speaker::new::heba161a1557e022b [INFO] [stdout] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/adi_speaker-0.0.1/src/lib.rs:51 [INFO] [stdout] 13: 0x5562a90145a8 - rust_out::main::h1cf9155cb6204ee7 [INFO] [stdout] 14: 0x5562a9014a03 - std::rt::lang_start::{{closure}}::h00a7ffc4b255461a [INFO] [stdout] 15: 0x5562a902f643 - std::rt::lang_start_internal::{{closure}}::hf367a5a6ae52b0ce [INFO] [stdout] at src/libstd/rt.rs:49 [INFO] [stdout] 16: 0x5562a902f643 - std::panicking::try::do_call::h9d779bc5e27e3284 [INFO] [stdout] at src/libstd/panicking.rs:296 [INFO] [stdout] 17: 0x5562a9030fea - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:80 [INFO] [stdout] 18: 0x5562a90300fd - std::panicking::try::h4af22d9cb0afa351 [INFO] [stdout] at src/libstd/panicking.rs:275 [INFO] [stdout] 19: 0x5562a90300fd - std::panic::catch_unwind::hbb68a9ada87bfb97 [INFO] [stdout] at src/libstd/panic.rs:394 [INFO] [stdout] 20: 0x5562a90300fd - std::rt::lang_start_internal::hba9e09d74440ce4d [INFO] [stdout] at src/libstd/rt.rs:48 [INFO] [stdout] 21: 0x5562a90149e8 - std::rt::lang_start::hb393a69b73b35e9d [INFO] [stdout] 22: 0x5562a90149ab - main [INFO] [stdout] 23: 0x7f401f3cc2e1 - __libc_start_main [INFO] [stdout] 24: 0x5562a901425a - _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" "9d23fb13248a2b001bd1432a90048d8b7373b3478875aa4a1c2b6841669c431c"` [INFO] running `"docker" "rm" "-f" "9d23fb13248a2b001bd1432a90048d8b7373b3478875aa4a1c2b6841669c431c"` [INFO] [stdout] 9d23fb13248a2b001bd1432a90048d8b7373b3478875aa4a1c2b6841669c431c