[INFO] crate twang 0.2.0 is already in cache [INFO] testing twang-0.2.0 against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274 [INFO] extracting crate twang 0.2.0 into /workspace/builds/worker-8/source [INFO] validating manifest of crates.io crate twang 0.2.0 on toolchain 41997647ba6a77908f6ef64401414feb00bccf16 [INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "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 /workspace/builds/worker-8/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"` [INFO] [stdout] a6ab512900132bdc7b2990d20d6575ddb0d095fe92b4d27ab63672887ad53663 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "a6ab512900132bdc7b2990d20d6575ddb0d095fe92b4d27ab63672887ad53663"` [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand v0.5.6 [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] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.94s [INFO] running `"docker" "inspect" "a6ab512900132bdc7b2990d20d6575ddb0d095fe92b4d27ab63672887ad53663"` [INFO] running `"docker" "rm" "-f" "a6ab512900132bdc7b2990d20d6575ddb0d095fe92b4d27ab63672887ad53663"` [INFO] [stdout] a6ab512900132bdc7b2990d20d6575ddb0d095fe92b4d27ab63672887ad53663 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 8765269bbe774acdcafd778e6beea59e53fac3945bb89b01ecd759ac70312685 [INFO] running `"docker" "start" "-a" "8765269bbe774acdcafd778e6beea59e53fac3945bb89b01ecd759ac70312685"` [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling bitflags v0.9.1 [INFO] [stderr] Compiling lazy_static v1.4.0 [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] warning: 1 warning emitted [INFO] [stderr] [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] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 11.30s [INFO] running `"docker" "inspect" "8765269bbe774acdcafd778e6beea59e53fac3945bb89b01ecd759ac70312685"` [INFO] running `"docker" "rm" "-f" "8765269bbe774acdcafd778e6beea59e53fac3945bb89b01ecd759ac70312685"` [INFO] [stdout] 8765269bbe774acdcafd778e6beea59e53fac3945bb89b01ecd759ac70312685 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"` [INFO] [stdout] a208440ccab45185d92172feeca7f2fcc8cea347b090f4a6e72a2f12986b29af [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "a208440ccab45185d92172feeca7f2fcc8cea347b090f4a6e72a2f12986b29af"` [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] warning: 1 warning emitted [INFO] [stderr] [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] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.15s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/twang-79b8c4d0e65e7c03 [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))', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/adi_speaker-0.0.1/src/lib.rs:51:23 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x556f24570484 - backtrace::backtrace::libunwind::trace::h61666fa4b9834a45 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stdout] 1: 0x556f24570484 - backtrace::backtrace::trace_unsynchronized::h01d3725fb5da8653 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x556f24570484 - std::sys_common::backtrace::_print_fmt::h5c7c4751bc296f90 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stdout] 3: 0x556f24570484 - ::fmt::h7729313ad2d729c7 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stdout] 4: 0x556f2458dddc - core::fmt::write::hb0049f6c12bdaffc [INFO] [stdout] at src/libcore/fmt/mod.rs:1069 [INFO] [stdout] 5: 0x556f2456e9d3 - std::io::Write::write_fmt::hfb486fa6ccb90f14 [INFO] [stdout] at src/libstd/io/mod.rs:1504 [INFO] [stdout] 6: 0x556f24572a25 - std::sys_common::backtrace::_print::ha087cac92e84a414 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stdout] 7: 0x556f24572a25 - std::sys_common::backtrace::print::h6b013d3bfe6cbcb8 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stdout] 8: 0x556f24572a25 - std::panicking::default_hook::{{closure}}::h016d7de02def2736 [INFO] [stdout] at src/libstd/panicking.rs:198 [INFO] [stdout] 9: 0x556f24572762 - std::panicking::default_hook::h9386f7e484840463 [INFO] [stdout] at src/libstd/panicking.rs:218 [INFO] [stdout] 10: 0x556f24573032 - std::panicking::rust_panic_with_hook::h3846eb1b2e5a9312 [INFO] [stdout] at src/libstd/panicking.rs:511 [INFO] [stdout] 11: 0x556f24572c1b - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:419 [INFO] [stdout] 12: 0x556f2458d1c1 - core::panicking::panic_fmt::hc5953a7331f9805c [INFO] [stdout] at src/libcore/panicking.rs:111 [INFO] [stdout] 13: 0x556f2458cfe3 - core::option::expect_none_failed::hf2c575a7b931ce1f [INFO] [stdout] at src/libcore/option.rs:1268 [INFO] [stdout] 14: 0x556f2455e5f3 - core::result::Result::unwrap::h679d2b4e75f153f4 [INFO] [stdout] at /rustc/41997647ba6a77908f6ef64401414feb00bccf16/src/libcore/result.rs:1005 [INFO] [stdout] 15: 0x556f2455945a - adi_speaker::Speaker::new::h03bb23111dc1b452 [INFO] [stdout] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/adi_speaker-0.0.1/src/lib.rs:51 [INFO] [stdout] 16: 0x556f24558b08 - rust_out::main::hce5147e828914a17 [INFO] [stdout] 17: 0x556f24558783 - std::rt::lang_start::{{closure}}::hd4d3223f97a59432 [INFO] [stdout] 18: 0x556f24573478 - std::rt::lang_start_internal::{{closure}}::h76043ceda1ce1596 [INFO] [stdout] at src/libstd/rt.rs:52 [INFO] [stdout] 19: 0x556f24573478 - std::panicking::try::do_call::hb3d81a78fdf1ed63 [INFO] [stdout] at src/libstd/panicking.rs:331 [INFO] [stdout] 20: 0x556f24573478 - std::panicking::try::he8d7c35962fb5d7e [INFO] [stdout] at src/libstd/panicking.rs:274 [INFO] [stdout] 21: 0x556f24573478 - std::panic::catch_unwind::h643ad9bfe058a347 [INFO] [stdout] at src/libstd/panic.rs:394 [INFO] [stdout] 22: 0x556f24573478 - std::rt::lang_start_internal::h4b0f023744ce345f [INFO] [stdout] at src/libstd/rt.rs:51 [INFO] [stdout] 23: 0x556f24558768 - std::rt::lang_start::h03f94474139bc599 [INFO] [stdout] 24: 0x556f24558eeb - main [INFO] [stdout] 25: 0x7fe0b89ceb97 - __libc_start_main [INFO] [stdout] 26: 0x556f2455864a - _start [INFO] [stdout] 27: 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" "a208440ccab45185d92172feeca7f2fcc8cea347b090f4a6e72a2f12986b29af"` [INFO] running `"docker" "rm" "-f" "a208440ccab45185d92172feeca7f2fcc8cea347b090f4a6e72a2f12986b29af"` [INFO] [stdout] a208440ccab45185d92172feeca7f2fcc8cea347b090f4a6e72a2f12986b29af