[INFO] updating cached repository https://github.com/mrzombi3/rustlings [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 1c789dda08a57e1a3292d42e2d63f2c4d631057d [INFO] testing mrzombi3/rustlings against beta-2019-09-28 for beta-1.39-1 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrzombi3%2Frustlings" "work/builds/worker-5/source"` [INFO] [stderr] Cloning into 'work/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mrzombi3/rustlings on toolchain beta-2019-09-28 [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/mrzombi3/rustlings [INFO] finished tweaking git repo https://github.com/mrzombi3/rustlings [INFO] tweaked toml for git repo https://github.com/mrzombi3/rustlings written to work/builds/worker-5/source/Cargo.toml [INFO] crate git repo https://github.com/mrzombi3/rustlings already has a lockfile, it will not be regenerated [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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" "+beta-2019-09-28" "build" "--frozen"` [INFO] [stdout] 55bf826c2fdcda912636a8f91ee17d45b0698ce9a7e1970351a635dc213b7eb3 [INFO] running `"docker" "start" "-a" "55bf826c2fdcda912636a8f91ee17d45b0698ce9a7e1970351a635dc213b7eb3"` [INFO] [stderr] Compiling syn v0.15.34 [INFO] [stderr] Compiling regex-syntax v0.5.6 [INFO] [stderr] Compiling termios v0.3.1 [INFO] [stderr] Compiling clicolors-control v1.0.0 [INFO] [stderr] Compiling clicolors-control v0.2.0 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling parking_lot_core v0.5.0 [INFO] [stderr] Compiling inotify v0.6.1 [INFO] [stderr] Compiling mio-extras v2.0.5 [INFO] [stderr] Compiling notify v4.0.12 [INFO] [stderr] Compiling parking_lot v0.8.0 [INFO] [stderr] Compiling console v0.7.5 [INFO] [stderr] Compiling console v0.6.2 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Compiling serde_derive v1.0.92 [INFO] [stderr] Compiling indicatif v0.9.0 [INFO] [stderr] Compiling serde v1.0.92 [INFO] [stderr] Compiling toml v0.4.10 [INFO] [stderr] Compiling rustlings v1.4.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 35.83s [INFO] running `"docker" "inspect" "55bf826c2fdcda912636a8f91ee17d45b0698ce9a7e1970351a635dc213b7eb3"` [INFO] running `"docker" "rm" "-f" "55bf826c2fdcda912636a8f91ee17d45b0698ce9a7e1970351a635dc213b7eb3"` [INFO] [stdout] 55bf826c2fdcda912636a8f91ee17d45b0698ce9a7e1970351a635dc213b7eb3 [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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" "+beta-2019-09-28" "test" "--frozen" "--no-run"` [INFO] [stdout] 9720bb5815d2aeaa4b0c3f978e8b8ce2e476805e1e6188eaa468f32c1fe73b82 [INFO] running `"docker" "start" "-a" "9720bb5815d2aeaa4b0c3f978e8b8ce2e476805e1e6188eaa468f32c1fe73b82"` [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling predicates v1.0.1 [INFO] [stderr] Compiling serde_json v1.0.39 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v1.4.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.50s [INFO] running `"docker" "inspect" "9720bb5815d2aeaa4b0c3f978e8b8ce2e476805e1e6188eaa468f32c1fe73b82"` [INFO] running `"docker" "rm" "-f" "9720bb5815d2aeaa4b0c3f978e8b8ce2e476805e1e6188eaa468f32c1fe73b82"` [INFO] [stdout] 9720bb5815d2aeaa4b0c3f978e8b8ce2e476805e1e6188eaa468f32c1fe73b82 [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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" "+beta-2019-09-28" "test" "--frozen"` [INFO] [stdout] 1b386af1eeee68340671b54925ff1b68727f79e05c64ef7f14469466d7fa1401 [INFO] running `"docker" "start" "-a" "1b386af1eeee68340671b54925ff1b68727f79e05c64ef7f14469466d7fa1401"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/rustlings-db9cf5018dc29e67 [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test exercise::test::test_clean ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_clean stdout ---- [INFO] [stdout] thread 'exercise::test::test_clean' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/libcore/result.rs:1165:5 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55dda85ad194 - backtrace::backtrace::libunwind::trace::hf625d18232cbbbd4 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/libunwind.rs:88 [INFO] [stdout] 1: 0x55dda85ad194 - backtrace::backtrace::trace_unsynchronized::h41d74150fc6ff542 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x55dda85ad194 - std::sys_common::backtrace::_print_fmt::h85d37830c667a1f9 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:76 [INFO] [stdout] 3: 0x55dda85ad194 - ::fmt::h2b7ac01d5feaf9b2 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:60 [INFO] [stdout] 4: 0x55dda85c808c - core::fmt::write::h7fd0d904495c035f [INFO] [stdout] at src/libcore/fmt/mod.rs:1030 [INFO] [stdout] 5: 0x55dda85667e5 - std::io::Write::write_fmt::h424452e6ba861394 [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/io/mod.rs:1412 [INFO] [stdout] 6: 0x55dda85a8d41 - std::io::impls::>::write_fmt::h814a51d8ae1dee4a [INFO] [stdout] at src/libstd/io/impls.rs:141 [INFO] [stdout] 7: 0x55dda85af625 - std::sys_common::backtrace::_print::h4c743f7c274a5a74 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:64 [INFO] [stdout] 8: 0x55dda85af625 - std::sys_common::backtrace::print::ha5c4f4bf03800d4d [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stdout] 9: 0x55dda85af625 - std::panicking::default_hook::{{closure}}::h8b842185774c09e6 [INFO] [stdout] at src/libstd/panicking.rs:196 [INFO] [stdout] 10: 0x55dda85af2ac - std::panicking::default_hook::hd8ec13ee1bc2a65a [INFO] [stdout] at src/libstd/panicking.rs:207 [INFO] [stdout] 11: 0x55dda85afd25 - std::panicking::rust_panic_with_hook::hf3b27166e5f403e7 [INFO] [stdout] at src/libstd/panicking.rs:473 [INFO] [stdout] 12: 0x55dda85af8c2 - std::panicking::continue_panic_fmt::hd961751be84a6f83 [INFO] [stdout] at src/libstd/panicking.rs:380 [INFO] [stdout] 13: 0x55dda85af7b6 - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:307 [INFO] [stdout] 14: 0x55dda85c577a - core::panicking::panic_fmt::h467e0364f9237670 [INFO] [stdout] at src/libcore/panicking.rs:85 [INFO] [stdout] 15: 0x55dda85c5877 - core::result::unwrap_failed::h38f3a56f1dadf080 [INFO] [stdout] at src/libcore/result.rs:1165 [INFO] [stdout] 16: 0x55dda8564cd0 - core::result::Result::unwrap::hc06c3344b92755c6 [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libcore/result.rs:933 [INFO] [stdout] 17: 0x55dda8564d8d - rustlings::exercise::test::test_clean::h060d0cbbcc6f6c64 [INFO] [stdout] at src/exercise.rs:71 [INFO] [stdout] 18: 0x55dda8564d3a - rustlings::exercise::test::test_clean::{{closure}}::h1e31a44df29b8b6e [INFO] [stdout] at src/exercise.rs:70 [INFO] [stdout] 19: 0x55dda856451e - core::ops::function::FnOnce::call_once::h1420a5a642eb9f23 [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libcore/ops/function.rs:227 [INFO] [stdout] 20: 0x55dda85706df - as core::ops::function::FnOnce>::call_once::h8b428e8a43aaf8e9 [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/liballoc/boxed.rs:922 [INFO] [stdout] 21: 0x55dda85b24fa - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:80 [INFO] [stdout] 22: 0x55dda858aeee - std::panicking::try::heccce20d527a3513 [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/panicking.rs:271 [INFO] [stdout] 23: 0x55dda858aeee - std::panic::catch_unwind::h7fd8f5d3271f1692 [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/panic.rs:394 [INFO] [stdout] 24: 0x55dda858aeee - test::run_test::run_test_inner::{{closure}}::h88b46e5c359957e5 [INFO] [stdout] at src/libtest/lib.rs:1413 [INFO] [stdout] 25: 0x55dda8565f55 - std::sys_common::backtrace::__rust_begin_short_backtrace::h00847676c8212941 [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/sys_common/backtrace.rs:126 [INFO] [stdout] 26: 0x55dda856a0e5 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h5dd37acd2295488e [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/thread/mod.rs:470 [INFO] [stdout] 27: 0x55dda856a0e5 - as core::ops::function::FnOnce<()>>::call_once::h9d32b103da0b97c6 [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/panic.rs:315 [INFO] [stdout] 28: 0x55dda856a0e5 - std::panicking::try::do_call::h2bd819a3056c57cd [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/panicking.rs:292 [INFO] [stdout] 29: 0x55dda85b24fa - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:80 [INFO] [stdout] 30: 0x55dda856a692 - std::panicking::try::h243a25457a848a1a [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/panicking.rs:271 [INFO] [stdout] 31: 0x55dda856a692 - std::panic::catch_unwind::h74b81f55e55e757c [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/panic.rs:394 [INFO] [stdout] 32: 0x55dda856a692 - std::thread::Builder::spawn_unchecked::{{closure}}::h4c2d214a2cffa6cf [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/thread/mod.rs:469 [INFO] [stdout] 33: 0x55dda856a692 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h8a8a187b3fb58e53 [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libcore/ops/function.rs:227 [INFO] [stdout] 34: 0x55dda85a579f - as core::ops::function::FnOnce>::call_once::h3cdef3b7ea22cd61 [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/liballoc/boxed.rs:922 [INFO] [stdout] 35: 0x55dda85b1c50 - as core::ops::function::FnOnce>::call_once::hc8f25720bf0d5424 [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/liballoc/boxed.rs:922 [INFO] [stdout] 36: 0x55dda85b1c50 - std::sys_common::thread::start_thread::h7e8885ccfd5d1932 [INFO] [stdout] at src/libstd/sys_common/thread.rs:13 [INFO] [stdout] 37: 0x55dda85b1c50 - std::sys::unix::thread::Thread::new::thread_start::h5d24df932d688baf [INFO] [stdout] at src/libstd/sys/unix/thread.rs:79 [INFO] [stdout] 38: 0x7f0647d386db - start_thread [INFO] [stdout] 39: 0x7f064827588f - __clone [INFO] [stdout] 40: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] exercise::test::test_clean [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 '--bin rustlings' [INFO] running `"docker" "inspect" "1b386af1eeee68340671b54925ff1b68727f79e05c64ef7f14469466d7fa1401"` [INFO] running `"docker" "rm" "-f" "1b386af1eeee68340671b54925ff1b68727f79e05c64ef7f14469466d7fa1401"` [INFO] [stdout] 1b386af1eeee68340671b54925ff1b68727f79e05c64ef7f14469466d7fa1401