[INFO] crate artifact_lib 0.2.1 is already in cache [INFO] extracting crate artifact_lib 0.2.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/artifact_lib/0.2.1 [INFO] extracting crate artifact_lib 0.2.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/artifact_lib/0.2.1 [INFO] validating manifest of artifact_lib-0.2.1 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 artifact_lib-0.2.1 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 artifact_lib-0.2.1 [INFO] finished frobbing artifact_lib-0.2.1 [INFO] frobbed toml for artifact_lib-0.2.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/artifact_lib/0.2.1/Cargo.toml [INFO] started frobbing artifact_lib-0.2.1 [INFO] finished frobbing artifact_lib-0.2.1 [INFO] frobbed toml for artifact_lib-0.2.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/artifact_lib/0.2.1/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] testing artifact_lib-0.2.1 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/artifact_lib/0.2.1:/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] 377d31efe3472cf3985359a288e8a1d0f95720bcd8052345f24e5458dd9c9302 [INFO] running `"docker" "start" "-a" "377d31efe3472cf3985359a288e8a1d0f95720bcd8052345f24e5458dd9c9302"` [INFO] [stderr] Compiling siphasher v0.2.3 [INFO] [stderr] Compiling string_cache_shared v0.3.0 [INFO] [stderr] Compiling new_debug_unreachable v1.0.3 [INFO] [stderr] Compiling mac v0.1.1 [INFO] [stderr] Compiling utf-8 v0.7.5 [INFO] [stderr] Compiling precomputed-hash v0.1.1 [INFO] [stderr] Compiling maplit v1.0.1 [INFO] [stderr] Compiling directories v1.0.2 [INFO] [stderr] Compiling html5ever v0.22.5 [INFO] [stderr] Compiling synstructure v0.10.2 [INFO] [stderr] Compiling futf v0.1.4 [INFO] [stderr] Compiling phf_shared v0.7.24 [INFO] [stderr] Compiling tendril v0.4.1 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Compiling phf v0.7.24 [INFO] [stderr] Compiling string_cache_codegen v0.4.2 [INFO] [stderr] Compiling phf_codegen v0.7.24 [INFO] [stderr] Compiling string_cache v0.7.3 [INFO] [stderr] Compiling markup5ever v0.7.5 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Compiling failure v0.1.5 [INFO] [stderr] Compiling cookie_store v0.7.0 [INFO] [stderr] Compiling reqwest v0.9.20 [INFO] [stderr] Compiling ammonia v1.2.0 [INFO] [stderr] Compiling artifact_serde v0.2.1 [INFO] [stderr] Compiling artifact_lib v0.2.1 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 47.31s [INFO] running `"docker" "inspect" "377d31efe3472cf3985359a288e8a1d0f95720bcd8052345f24e5458dd9c9302"` [INFO] running `"docker" "rm" "-f" "377d31efe3472cf3985359a288e8a1d0f95720bcd8052345f24e5458dd9c9302"` [INFO] [stdout] 377d31efe3472cf3985359a288e8a1d0f95720bcd8052345f24e5458dd9c9302 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/artifact_lib/0.2.1:/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] 879099cda9280a9639897e858003db55367a3d63ef0357c335928a3d7c0479ea [INFO] running `"docker" "start" "-a" "879099cda9280a9639897e858003db55367a3d63ef0357c335928a3d7c0479ea"` [INFO] [stderr] Compiling artifact_lib v0.2.1 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `my_deck` [INFO] [stderr] --> src/lib.rs:426:13 [INFO] [stderr] | [INFO] [stderr] 426 | let my_deck = my_artifact.get_deck(my_adc); [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_my_deck` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 11.28s [INFO] running `"docker" "inspect" "879099cda9280a9639897e858003db55367a3d63ef0357c335928a3d7c0479ea"` [INFO] running `"docker" "rm" "-f" "879099cda9280a9639897e858003db55367a3d63ef0357c335928a3d7c0479ea"` [INFO] [stdout] 879099cda9280a9639897e858003db55367a3d63ef0357c335928a3d7c0479ea [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/artifact_lib/0.2.1:/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] 4277c4ada38b527cfbcad416d67124b914dadeca0cd51b564ba88bc1a3e28e1d [INFO] running `"docker" "start" "-a" "4277c4ada38b527cfbcad416d67124b914dadeca0cd51b564ba88bc1a3e28e1d"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.17s [INFO] [stderr] Running /opt/crater/target/debug/deps/artifact_lib-1d522cbc82240a7e [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test tests::it_works ... ok [INFO] [stdout] test tests::test_artifact ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- tests::test_artifact stdout ---- [INFO] [stdout] thread 'tests::test_artifact' panicked at 'called `Result::unwrap()` on an `Err` value: "Error reading or creating directory: \"/home/crates-build-env/.cache/artifact_lib\", No such file or directory (os error 2)"', src/libcore/result.rs:999:5 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x559ca0a6717b - 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: 0x559ca0a6717b - 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: 0x559ca0a6717b - std::sys_common::backtrace::_print::h527254ae44989167 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stdout] 3: 0x559ca0a6717b - std::sys_common::backtrace::print::he85dd5ddddf46503 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stdout] 4: 0x559ca0a6717b - std::panicking::default_hook::{{closure}}::h847a2eb38b396f14 [INFO] [stdout] at src/libstd/panicking.rs:200 [INFO] [stdout] 5: 0x559ca0a66dea - std::panicking::default_hook::h2ca0f9a30a0e206b [INFO] [stdout] at src/libstd/panicking.rs:211 [INFO] [stdout] 6: 0x559ca0a678f0 - std::panicking::rust_panic_with_hook::hffcefc09751839d1 [INFO] [stdout] at src/libstd/panicking.rs:477 [INFO] [stdout] 7: 0x559ca0a67472 - std::panicking::continue_panic_fmt::hc0f142c930c846fc [INFO] [stdout] at src/libstd/panicking.rs:384 [INFO] [stdout] 8: 0x559ca0a67356 - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:311 [INFO] [stdout] 9: 0x559ca0a8362d - core::panicking::panic_fmt::h2daf88b2616ca2b2 [INFO] [stdout] at src/libcore/panicking.rs:85 [INFO] [stdout] 10: 0x559ca06fc5b8 - core::result::unwrap_failed::h0000daf683b9d585 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/macros.rs:18 [INFO] [stdout] 11: 0x559ca01a6530 - core::result::Result::unwrap::h92d16c8cea3beaa9 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/result.rs:800 [INFO] [stdout] 12: 0x559ca0121711 - artifact_lib::Artifact::new::hec48dd83fb9739ff [INFO] [stdout] at src/lib.rs:200 [INFO] [stdout] 13: 0x559ca01d5db1 - artifact_lib::tests::test_artifact::h23c88bee22e74356 [INFO] [stdout] at src/lib.rs:416 [INFO] [stdout] 14: 0x559ca01d5d8a - artifact_lib::tests::test_artifact::{{closure}}::hbea003ceb1793316 [INFO] [stdout] at src/lib.rs:415 [INFO] [stdout] 15: 0x559ca01b162e - core::ops::function::FnOnce::call_once::h619b4f78424ef746 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/ops/function.rs:231 [INFO] [stdout] 16: 0x559ca01e9d3f - as core::ops::function::FnOnce>::call_once::h4a13ee3f0d7b4201 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:746 [INFO] [stdout] 17: 0x559ca0a6b21a - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:82 [INFO] [stdout] 18: 0x559ca0204338 - std::panicking::try::h5a93466ab2078586 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:275 [INFO] [stdout] 19: 0x559ca0204338 - std::panic::catch_unwind::h752cbeae6ac7bdea [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panic.rs:394 [INFO] [stdout] 20: 0x559ca0204338 - test::run_test::run_test_inner::{{closure}}::h206c9c16936edaca [INFO] [stdout] at src/libtest/lib.rs:1466 [INFO] [stdout] 21: 0x559ca01df1b5 - std::sys_common::backtrace::__rust_begin_short_backtrace::hc7edbac42990d270 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/sys_common/backtrace.rs:77 [INFO] [stdout] 22: 0x559ca01e3275 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::he53c58e7adee87af [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/thread/mod.rs:470 [INFO] [stdout] 23: 0x559ca01e3275 - as core::ops::function::FnOnce<()>>::call_once::h1aff7c42b6bb3726 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panic.rs:315 [INFO] [stdout] 24: 0x559ca01e3275 - std::panicking::try::do_call::h41f8559f88100f6c [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:296 [INFO] [stdout] 25: 0x559ca0a6b21a - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:82 [INFO] [stdout] 26: 0x559ca01e3972 - std::panicking::try::hb54ba808181fe352 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:275 [INFO] [stdout] 27: 0x559ca01e3972 - std::panic::catch_unwind::h555ccf4e835e93f4 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panic.rs:394 [INFO] [stdout] 28: 0x559ca01e3972 - std::thread::Builder::spawn_unchecked::{{closure}}::hd4dae6e19e80fc1a [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/thread/mod.rs:469 [INFO] [stdout] 29: 0x559ca01e3972 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hc35d54c07710e1a1 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/ops/function.rs:231 [INFO] [stdout] 30: 0x559ca0a59d1f - as core::ops::function::FnOnce>::call_once::h42806b83647d4c79 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:746 [INFO] [stdout] 31: 0x559ca0a6a5c0 - as core::ops::function::FnOnce>::call_once::h83c921c8e826dd1d [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:746 [INFO] [stdout] 32: 0x559ca0a6a5c0 - std::sys_common::thread::start_thread::h2613204ce513782e [INFO] [stdout] at src/libstd/sys_common/thread.rs:13 [INFO] [stdout] 33: 0x559ca0a6a5c0 - std::sys::unix::thread::Thread::new::thread_start::h4570080769500bcd [INFO] [stdout] at src/libstd/sys/unix/thread.rs:79 [INFO] [stdout] 34: 0x7f40bdea64a4 - start_thread [INFO] [stdout] 35: 0x7f40bd9d1d0f - __clone [INFO] [stdout] 36: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] tests::test_artifact [INFO] [stdout] [INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--lib' [INFO] running `"docker" "inspect" "4277c4ada38b527cfbcad416d67124b914dadeca0cd51b564ba88bc1a3e28e1d"` [INFO] running `"docker" "rm" "-f" "4277c4ada38b527cfbcad416d67124b914dadeca0cd51b564ba88bc1a3e28e1d"` [INFO] [stdout] 4277c4ada38b527cfbcad416d67124b914dadeca0cd51b564ba88bc1a3e28e1d