[INFO] crate twang 0.2.0 is already in cache [INFO] testing twang-0.2.0 against 1.38.0 for beta-1.39-1 [INFO] extracting crate twang 0.2.0 into work/builds/worker-7/source [INFO] validating manifest of crates.io crate twang 0.2.0 on toolchain 1.38.0 [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate twang 0.2.0 [INFO] finished tweaking crates.io crate twang 0.2.0 [INFO] tweaked toml for crates.io crate twang 0.2.0 written to work/builds/worker-7/source/Cargo.toml [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"` [INFO] [stdout] b1a6c1939276b91d8425947fadfd1aca008314570c277cfe0b252117c49ede62 [INFO] running `"docker" "start" "-a" "b1a6c1939276b91d8425947fadfd1aca008314570c277cfe0b252117c49ede62"` [INFO] [stderr] Compiling twang v0.2.0 (/opt/rustwide/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 0.53s [INFO] running `"docker" "inspect" "b1a6c1939276b91d8425947fadfd1aca008314570c277cfe0b252117c49ede62"` [INFO] running `"docker" "rm" "-f" "b1a6c1939276b91d8425947fadfd1aca008314570c277cfe0b252117c49ede62"` [INFO] [stdout] b1a6c1939276b91d8425947fadfd1aca008314570c277cfe0b252117c49ede62 [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"` [INFO] [stdout] e939fa9f95ac0fe7901b6a68a193052c7680bf814209ba7e573fc0cbf87217aa [INFO] running `"docker" "start" "-a" "e939fa9f95ac0fe7901b6a68a193052c7680bf814209ba7e573fc0cbf87217aa"` [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/rustwide/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 4.14s [INFO] running `"docker" "inspect" "e939fa9f95ac0fe7901b6a68a193052c7680bf814209ba7e573fc0cbf87217aa"` [INFO] running `"docker" "rm" "-f" "e939fa9f95ac0fe7901b6a68a193052c7680bf814209ba7e573fc0cbf87217aa"` [INFO] [stdout] e939fa9f95ac0fe7901b6a68a193052c7680bf814209ba7e573fc0cbf87217aa [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"` [INFO] [stdout] 3621dbf4d7c2d4102bb28ff4876adb26e1774d77a4adfe93e57e916b7c96c902 [INFO] running `"docker" "start" "-a" "3621dbf4d7c2d4102bb28ff4876adb26e1774d77a4adfe93e57e916b7c96c902"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.19s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/twang-1e02ef42b253a8be [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: 0x55c8c2c0f87b - backtrace::backtrace::libunwind::trace::h89fcc71e59e3bc5b [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88 [INFO] [stdout] 1: 0x55c8c2c0f87b - backtrace::backtrace::trace_unsynchronized::h0bad9be1379e729a [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x55c8c2c0f87b - std::sys_common::backtrace::_print::hd3382a1f33c473da [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stdout] 3: 0x55c8c2c0f87b - std::sys_common::backtrace::print::h0ec6f03cfb8e76a6 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stdout] 4: 0x55c8c2c0f87b - std::panicking::default_hook::{{closure}}::h96cbf7b454e3f557 [INFO] [stdout] at src/libstd/panicking.rs:200 [INFO] [stdout] 5: 0x55c8c2c0f556 - std::panicking::default_hook::h95a8f00337383d83 [INFO] [stdout] at src/libstd/panicking.rs:214 [INFO] [stdout] 6: 0x55c8c2c0ff3d - std::panicking::rust_panic_with_hook::h92f98b46e22f14ed [INFO] [stdout] at src/libstd/panicking.rs:477 [INFO] [stdout] 7: 0x55c8c2c0fac2 - std::panicking::continue_panic_fmt::h25abfbb4e5b7043a [INFO] [stdout] at src/libstd/panicking.rs:384 [INFO] [stdout] 8: 0x55c8c2c0f9a6 - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:311 [INFO] [stdout] 9: 0x55c8c2c23b4d - core::panicking::panic_fmt::h7e9f94035af782b3 [INFO] [stdout] at src/libcore/panicking.rs:85 [INFO] [stdout] 10: 0x55c8c2c23c47 - core::result::unwrap_failed::hf7591c1dd9412006 [INFO] [stdout] at src/libcore/result.rs:1084 [INFO] [stdout] 11: 0x55c8c2bf8439 - core::result::Result::unwrap::ha3fcf22dd4709308 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libcore/result.rs:852 [INFO] [stdout] 12: 0x55c8c2bf527c - adi_speaker::Speaker::new::h55f685e1cf2d3d3a [INFO] [stdout] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/adi_speaker-0.0.1/src/lib.rs:51 [INFO] [stdout] 13: 0x55c8c2bf4788 - rust_out::main::h1cf9155cb6204ee7 [INFO] [stdout] 14: 0x55c8c2bf4713 - std::rt::lang_start::{{closure}}::h47cd0236d084ef94 [INFO] [stdout] 15: 0x55c8c2c0f993 - std::rt::lang_start_internal::{{closure}}::h4e93c1949c7a1955 [INFO] [stdout] at src/libstd/rt.rs:49 [INFO] [stdout] 16: 0x55c8c2c0f993 - std::panicking::try::do_call::h9440ccd4dc467eaa [INFO] [stdout] at src/libstd/panicking.rs:296 [INFO] [stdout] 17: 0x55c8c2c111aa - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:80 [INFO] [stdout] 18: 0x55c8c2c1044d - std::panicking::try::hc046e7ee42ee744f [INFO] [stdout] at src/libstd/panicking.rs:275 [INFO] [stdout] 19: 0x55c8c2c1044d - std::panic::catch_unwind::h27dfc457c200aee0 [INFO] [stdout] at src/libstd/panic.rs:394 [INFO] [stdout] 20: 0x55c8c2c1044d - std::rt::lang_start_internal::hea1b49a567afe309 [INFO] [stdout] at src/libstd/rt.rs:48 [INFO] [stdout] 21: 0x55c8c2bf46f8 - std::rt::lang_start::h74b7ed2f3cfd5b0d [INFO] [stdout] 22: 0x55c8c2bf4b8b - main [INFO] [stdout] 23: 0x7f1fc6f1cb97 - __libc_start_main [INFO] [stdout] 24: 0x55c8c2bf43ea - _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" "3621dbf4d7c2d4102bb28ff4876adb26e1774d77a4adfe93e57e916b7c96c902"` [INFO] running `"docker" "rm" "-f" "3621dbf4d7c2d4102bb28ff4876adb26e1774d77a4adfe93e57e916b7c96c902"` [INFO] [stdout] 3621dbf4d7c2d4102bb28ff4876adb26e1774d77a4adfe93e57e916b7c96c902