[INFO] updating cached repository https://github.com/pibone/rustlings-solutions [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] 32f5ad13142d2f78b46d05e06fe11eef9d04e74c [INFO] testing pibone/rustlings-solutions against 1.38.0 for beta-1.39-1 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpibone%2Frustlings-solutions" "work/builds/worker-1/source"` [INFO] [stderr] Cloning into 'work/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/pibone/rustlings-solutions 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 git repo https://github.com/pibone/rustlings-solutions [INFO] finished tweaking git repo https://github.com/pibone/rustlings-solutions [INFO] tweaked toml for git repo https://github.com/pibone/rustlings-solutions written to work/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/pibone/rustlings-solutions already has a lockfile, it will not be regenerated [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-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/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] 188d2f9eb3a160dafa52fb30d012211239d039d7ffe73ab51f42ba87c211afe6 [INFO] running `"docker" "start" "-a" "188d2f9eb3a160dafa52fb30d012211239d039d7ffe73ab51f42ba87c211afe6"` [INFO] [stderr] Compiling clicolors-control v1.0.0 [INFO] [stderr] Compiling termios v0.3.1 [INFO] [stderr] Compiling clicolors-control v0.2.0 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling serde_derive v1.0.92 [INFO] [stderr] Compiling inotify v0.6.1 [INFO] [stderr] Compiling mio-extras v2.0.5 [INFO] [stderr] Compiling console v0.7.5 [INFO] [stderr] Compiling console v0.6.2 [INFO] [stderr] Compiling notify v4.0.12 [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 v1.4.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 45.70s [INFO] running `"docker" "inspect" "188d2f9eb3a160dafa52fb30d012211239d039d7ffe73ab51f42ba87c211afe6"` [INFO] running `"docker" "rm" "-f" "188d2f9eb3a160dafa52fb30d012211239d039d7ffe73ab51f42ba87c211afe6"` [INFO] [stdout] 188d2f9eb3a160dafa52fb30d012211239d039d7ffe73ab51f42ba87c211afe6 [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/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] f8fd03d9ca00f821c01e1865be758ab95872aa7180fd3bfeddc444d472a835df [INFO] running `"docker" "start" "-a" "f8fd03d9ca00f821c01e1865be758ab95872aa7180fd3bfeddc444d472a835df"` [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 v1.4.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 8.42s [INFO] running `"docker" "inspect" "f8fd03d9ca00f821c01e1865be758ab95872aa7180fd3bfeddc444d472a835df"` [INFO] running `"docker" "rm" "-f" "f8fd03d9ca00f821c01e1865be758ab95872aa7180fd3bfeddc444d472a835df"` [INFO] [stdout] f8fd03d9ca00f821c01e1865be758ab95872aa7180fd3bfeddc444d472a835df [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/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] d299120ff0844e6018243eb9dfa622834fc39f711894c4968af8db448d0f2295 [INFO] running `"docker" "start" "-a" "d299120ff0844e6018243eb9dfa622834fc39f711894c4968af8db448d0f2295"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/rustlings-ec5bcec87ab4bbfa [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:1084:5 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x555d7dc2496b - 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: 0x555d7dc2496b - 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: 0x555d7dc2496b - std::sys_common::backtrace::_print::hd3382a1f33c473da [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stdout] 3: 0x555d7dc2496b - std::sys_common::backtrace::print::h0ec6f03cfb8e76a6 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stdout] 4: 0x555d7dc2496b - std::panicking::default_hook::{{closure}}::h96cbf7b454e3f557 [INFO] [stdout] at src/libstd/panicking.rs:200 [INFO] [stdout] 5: 0x555d7dc245dc - std::panicking::default_hook::h95a8f00337383d83 [INFO] [stdout] at src/libstd/panicking.rs:211 [INFO] [stdout] 6: 0x555d7dc250dd - std::panicking::rust_panic_with_hook::h92f98b46e22f14ed [INFO] [stdout] at src/libstd/panicking.rs:477 [INFO] [stdout] 7: 0x555d7dc24c62 - std::panicking::continue_panic_fmt::h25abfbb4e5b7043a [INFO] [stdout] at src/libstd/panicking.rs:384 [INFO] [stdout] 8: 0x555d7dc24b46 - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:311 [INFO] [stdout] 9: 0x555d7dc3ad6d - core::panicking::panic_fmt::h7e9f94035af782b3 [INFO] [stdout] at src/libcore/panicking.rs:85 [INFO] [stdout] 10: 0x555d7dc3ae67 - core::result::unwrap_failed::hf7591c1dd9412006 [INFO] [stdout] at src/libcore/result.rs:1084 [INFO] [stdout] 11: 0x555d7dbd97a0 - core::result::Result::unwrap::h013926b72231bdb3 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libcore/result.rs:852 [INFO] [stdout] 12: 0x555d7dbda00d - rustlings::exercise::test::test_clean::hd80fcc04929a4501 [INFO] [stdout] at src/exercise.rs:71 [INFO] [stdout] 13: 0x555d7dbd9fba - rustlings::exercise::test::test_clean::{{closure}}::hf9342300c591c5d0 [INFO] [stdout] at src/exercise.rs:70 [INFO] [stdout] 14: 0x555d7dbd983e - core::ops::function::FnOnce::call_once::h801544bfcb16b71b [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libcore/ops/function.rs:235 [INFO] [stdout] 15: 0x555d7dbe4ccf - as core::ops::function::FnOnce>::call_once::hac0fbe2754f8bd24 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/liballoc/boxed.rs:787 [INFO] [stdout] 16: 0x555d7dc278fa - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:80 [INFO] [stdout] 17: 0x555d7dbff2be - std::panicking::try::h9d6938917cc05e3f [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panicking.rs:275 [INFO] [stdout] 18: 0x555d7dbff2be - std::panic::catch_unwind::h5be70fd1d69515b0 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panic.rs:394 [INFO] [stdout] 19: 0x555d7dbff2be - test::run_test::run_test_inner::{{closure}}::h056f206eafd8ff6e [INFO] [stdout] at src/libtest/lib.rs:1408 [INFO] [stdout] 20: 0x555d7dbda6f5 - std::sys_common::backtrace::__rust_begin_short_backtrace::h859abbc742a34b19 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/sys_common/backtrace.rs:77 [INFO] [stdout] 21: 0x555d7dbde835 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hf8192ec938c43694 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/thread/mod.rs:470 [INFO] [stdout] 22: 0x555d7dbde835 - as core::ops::function::FnOnce<()>>::call_once::hae7b2431555cb4db [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panic.rs:315 [INFO] [stdout] 23: 0x555d7dbde835 - std::panicking::try::do_call::h6da7ecd0783259d7 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panicking.rs:296 [INFO] [stdout] 24: 0x555d7dc278fa - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:80 [INFO] [stdout] 25: 0x555d7dbdee12 - std::panicking::try::h3c1c35414c2c78f1 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panicking.rs:275 [INFO] [stdout] 26: 0x555d7dbdee12 - std::panic::catch_unwind::ha5cfb2018fda983e [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panic.rs:394 [INFO] [stdout] 27: 0x555d7dbdee12 - std::thread::Builder::spawn_unchecked::{{closure}}::hc7620e41f0938c09 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/thread/mod.rs:469 [INFO] [stdout] 28: 0x555d7dbdee12 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h1b3b20eeb6ea6ddd [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libcore/ops/function.rs:235 [INFO] [stdout] 29: 0x555d7dc1a5ff - as core::ops::function::FnOnce>::call_once::h2877b2aefb0fd627 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/liballoc/boxed.rs:787 [INFO] [stdout] 30: 0x555d7dc27030 - as core::ops::function::FnOnce>::call_once::h13f473dbcdaa0fef [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/liballoc/boxed.rs:787 [INFO] [stdout] 31: 0x555d7dc27030 - std::sys_common::thread::start_thread::h562a7c4953cb1d31 [INFO] [stdout] at src/libstd/sys_common/thread.rs:13 [INFO] [stdout] 32: 0x555d7dc27030 - std::sys::unix::thread::Thread::new::thread_start::h382c6ae14181d163 [INFO] [stdout] at src/libstd/sys/unix/thread.rs:79 [INFO] [stdout] 33: 0x7f8eca8ee6db - start_thread [INFO] [stdout] 34: 0x7f8ecae2b88f - __clone [INFO] [stdout] 35: 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" "d299120ff0844e6018243eb9dfa622834fc39f711894c4968af8db448d0f2295"` [INFO] running `"docker" "rm" "-f" "d299120ff0844e6018243eb9dfa622834fc39f711894c4968af8db448d0f2295"` [INFO] [stdout] d299120ff0844e6018243eb9dfa622834fc39f711894c4968af8db448d0f2295