[INFO] crate file-lock 1.1.20 is already in cache [INFO] testing file-lock-1.1.20 against beta-2019-09-28 for beta-1.39-1 [INFO] extracting crate file-lock 1.1.20 into work/builds/worker-7/source [INFO] validating manifest of crates.io crate file-lock 1.1.20 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 crates.io crate file-lock 1.1.20 [INFO] finished tweaking crates.io crate file-lock 1.1.20 [INFO] tweaked toml for crates.io crate file-lock 1.1.20 written to work/builds/worker-7/source/Cargo.toml [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [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-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" "+beta-2019-09-28" "build" "--frozen"` [INFO] [stdout] ef22fa46df5bf96a3a95ea2247d79651a0add23d3af9c6e04b676bbf4b1dee14 [INFO] running `"docker" "start" "-a" "ef22fa46df5bf96a3a95ea2247d79651a0add23d3af9c6e04b676bbf4b1dee14"` [INFO] [stderr] Compiling file-lock v1.1.20 (/opt/rustwide/workdir) [INFO] [stderr] warning: use of deprecated item 'gcc::Build': crate has been renamed to `cc`, the `gcc` name is not maintained [INFO] [stderr] --> build.rs:4:3 [INFO] [stderr] | [INFO] [stderr] 4 | gcc::Build::new() [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'gcc::Build::new': crate has been renamed to `cc`, the `gcc` name is not maintained [INFO] [stderr] --> build.rs:4:3 [INFO] [stderr] | [INFO] [stderr] 4 | gcc::Build::new() [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/lib.rs:154:9 [INFO] [stderr] | [INFO] [stderr] 154 | self.unlock().is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.39s [INFO] running `"docker" "inspect" "ef22fa46df5bf96a3a95ea2247d79651a0add23d3af9c6e04b676bbf4b1dee14"` [INFO] running `"docker" "rm" "-f" "ef22fa46df5bf96a3a95ea2247d79651a0add23d3af9c6e04b676bbf4b1dee14"` [INFO] [stdout] ef22fa46df5bf96a3a95ea2247d79651a0add23d3af9c6e04b676bbf4b1dee14 [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" "+beta-2019-09-28" "test" "--frozen" "--no-run"` [INFO] [stdout] 651b630474c401c201ad8c9e2bc51dbadfe82284766ab5f9133f4c001ad4e008 [INFO] running `"docker" "start" "-a" "651b630474c401c201ad8c9e2bc51dbadfe82284766ab5f9133f4c001ad4e008"` [INFO] [stderr] Compiling file-lock v1.1.20 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/lib.rs:154:9 [INFO] [stderr] | [INFO] [stderr] 154 | self.unlock().is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/lib.rs:183:29 [INFO] [stderr] | [INFO] [stderr] 183 | ... remove_file(&filename).is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/lib.rs:188:37 [INFO] [stderr] | [INFO] [stderr] 188 | / ... OpenOptions::new() [INFO] [stderr] 189 | | ... .write(true) [INFO] [stderr] 190 | | ... .create(true) [INFO] [stderr] 191 | | ... .open(&filename) [INFO] [stderr] 192 | | ... .is_ok(); [INFO] [stderr] | |___________________________________^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/lib.rs:209:57 [INFO] [stderr] | [INFO] [stderr] 209 | ... Some(lock) => { lock.unlock().is_ok(); }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/lib.rs:276:29 [INFO] [stderr] | [INFO] [stderr] 276 | ... remove_file(&filename).is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.06s [INFO] running `"docker" "inspect" "651b630474c401c201ad8c9e2bc51dbadfe82284766ab5f9133f4c001ad4e008"` [INFO] running `"docker" "rm" "-f" "651b630474c401c201ad8c9e2bc51dbadfe82284766ab5f9133f4c001ad4e008"` [INFO] [stdout] 651b630474c401c201ad8c9e2bc51dbadfe82284766ab5f9133f4c001ad4e008 [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" "+beta-2019-09-28" "test" "--frozen"` [INFO] [stdout] 5c9852c7820f90536549be6411e16a6525e69080065eb75c187fd8675a12e3fc [INFO] running `"docker" "start" "-a" "5c9852c7820f90536549be6411e16a6525e69080065eb75c187fd8675a12e3fc"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/file_lock-165e2316ffbfc29e [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test test::lock_and_unlock ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- test::lock_and_unlock stdout ---- [INFO] [stdout] thread 'test::lock_and_unlock' panicked at 'Error creating parent lock (Read-only file system (os error 30))', src/lib.rs:198:57 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55bceb58f0e4 - 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: 0x55bceb58f0e4 - 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: 0x55bceb58f0e4 - std::sys_common::backtrace::_print_fmt::h85d37830c667a1f9 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:76 [INFO] [stdout] 3: 0x55bceb58f0e4 - ::fmt::h2b7ac01d5feaf9b2 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:60 [INFO] [stdout] 4: 0x55bceb5a9fec - core::fmt::write::h7fd0d904495c035f [INFO] [stdout] at src/libcore/fmt/mod.rs:1030 [INFO] [stdout] 5: 0x55bceb548175 - std::io::Write::write_fmt::h424452e6ba861394 [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/io/mod.rs:1412 [INFO] [stdout] 6: 0x55bceb58ad41 - std::io::impls::>::write_fmt::h814a51d8ae1dee4a [INFO] [stdout] at src/libstd/io/impls.rs:141 [INFO] [stdout] 7: 0x55bceb591575 - std::sys_common::backtrace::_print::h4c743f7c274a5a74 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:64 [INFO] [stdout] 8: 0x55bceb591575 - std::sys_common::backtrace::print::ha5c4f4bf03800d4d [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stdout] 9: 0x55bceb591575 - std::panicking::default_hook::{{closure}}::h8b842185774c09e6 [INFO] [stdout] at src/libstd/panicking.rs:196 [INFO] [stdout] 10: 0x55bceb5911fc - std::panicking::default_hook::hd8ec13ee1bc2a65a [INFO] [stdout] at src/libstd/panicking.rs:207 [INFO] [stdout] 11: 0x55bceb591c75 - std::panicking::rust_panic_with_hook::hf3b27166e5f403e7 [INFO] [stdout] at src/libstd/panicking.rs:473 [INFO] [stdout] 12: 0x55bceb591812 - std::panicking::continue_panic_fmt::hd961751be84a6f83 [INFO] [stdout] at src/libstd/panicking.rs:380 [INFO] [stdout] 13: 0x55bceb59176c - std::panicking::begin_panic_fmt::h23ef54e17e5a13fa [INFO] [stdout] at src/libstd/panicking.rs:335 [INFO] [stdout] 14: 0x55bceb544b3e - file_lock::test::lock_and_unlock::hd6e84960641090bb [INFO] [stdout] at src/lib.rs:198 [INFO] [stdout] 15: 0x55bceb5444ca - file_lock::test::lock_and_unlock::{{closure}}::hb9a9912dc5a0ca1c [INFO] [stdout] at src/lib.rs:170 [INFO] [stdout] 16: 0x55bceb545d2e - core::ops::function::FnOnce::call_once::had1048379ee0e8b2 [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libcore/ops/function.rs:227 [INFO] [stdout] 17: 0x55bceb55206f - as core::ops::function::FnOnce>::call_once::h8b428e8a43aaf8e9 [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/liballoc/boxed.rs:922 [INFO] [stdout] 18: 0x55bceb59445a - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:80 [INFO] [stdout] 19: 0x55bceb56c87e - std::panicking::try::heccce20d527a3513 [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/panicking.rs:271 [INFO] [stdout] 20: 0x55bceb56c87e - std::panic::catch_unwind::h7fd8f5d3271f1692 [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/panic.rs:394 [INFO] [stdout] 21: 0x55bceb56c87e - test::run_test::run_test_inner::{{closure}}::h88b46e5c359957e5 [INFO] [stdout] at src/libtest/lib.rs:1413 [INFO] [stdout] 22: 0x55bceb5478e5 - std::sys_common::backtrace::__rust_begin_short_backtrace::h00847676c8212941 [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/sys_common/backtrace.rs:126 [INFO] [stdout] 23: 0x55bceb54ba75 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h5dd37acd2295488e [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/thread/mod.rs:470 [INFO] [stdout] 24: 0x55bceb54ba75 - as core::ops::function::FnOnce<()>>::call_once::h9d32b103da0b97c6 [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/panic.rs:315 [INFO] [stdout] 25: 0x55bceb54ba75 - std::panicking::try::do_call::h2bd819a3056c57cd [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/panicking.rs:292 [INFO] [stdout] 26: 0x55bceb59445a - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:80 [INFO] [stdout] 27: 0x55bceb54c022 - std::panicking::try::h243a25457a848a1a [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/panicking.rs:271 [INFO] [stdout] 28: 0x55bceb54c022 - std::panic::catch_unwind::h74b81f55e55e757c [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/panic.rs:394 [INFO] [stdout] 29: 0x55bceb54c022 - std::thread::Builder::spawn_unchecked::{{closure}}::h4c2d214a2cffa6cf [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/thread/mod.rs:469 [INFO] [stdout] 30: 0x55bceb54c022 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h8a8a187b3fb58e53 [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libcore/ops/function.rs:227 [INFO] [stdout] 31: 0x55bceb58765f - as core::ops::function::FnOnce>::call_once::h3cdef3b7ea22cd61 [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/liballoc/boxed.rs:922 [INFO] [stdout] 32: 0x55bceb593bb0 - as core::ops::function::FnOnce>::call_once::hc8f25720bf0d5424 [INFO] [stdout] at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/liballoc/boxed.rs:922 [INFO] [stdout] 33: 0x55bceb593bb0 - std::sys_common::thread::start_thread::h7e8885ccfd5d1932 [INFO] [stdout] at src/libstd/sys_common/thread.rs:13 [INFO] [stdout] 34: 0x55bceb593bb0 - std::sys::unix::thread::Thread::new::thread_start::h5d24df932d688baf [INFO] [stdout] at src/libstd/sys/unix/thread.rs:79 [INFO] [stdout] 35: 0x7fcb8f1156db - start_thread [INFO] [stdout] 36: 0x7fcb8ec2688f - __clone [INFO] [stdout] 37: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] test::lock_and_unlock [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 '--lib' [INFO] running `"docker" "inspect" "5c9852c7820f90536549be6411e16a6525e69080065eb75c187fd8675a12e3fc"` [INFO] running `"docker" "rm" "-f" "5c9852c7820f90536549be6411e16a6525e69080065eb75c187fd8675a12e3fc"` [INFO] [stdout] 5c9852c7820f90536549be6411e16a6525e69080065eb75c187fd8675a12e3fc