[INFO] fetching crate remain 0.1.2... [INFO] extracting crate remain 0.1.2 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/remain/0.1.2 [INFO] extracting crate remain 0.1.2 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/remain/0.1.2 [INFO] validating manifest of remain-0.1.2 on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of remain-0.1.2 on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing remain-0.1.2 [INFO] finished frobbing remain-0.1.2 [INFO] frobbed toml for remain-0.1.2 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/remain/0.1.2/Cargo.toml [INFO] started frobbing remain-0.1.2 [INFO] finished frobbing remain-0.1.2 [INFO] frobbed toml for remain-0.1.2 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/remain/0.1.2/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing remain-0.1.2 against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/remain/0.1.2:/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=forbid" "-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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"` [INFO] [stdout] b6e22a898ecb7d63bcfc9bd73b547e611d8b7ae1b02c129c7b7e804536b540b3 [INFO] running `"docker" "start" "-a" "b6e22a898ecb7d63bcfc9bd73b547e611d8b7ae1b02c129c7b7e804536b540b3"` [INFO] [stderr] Compiling syn v0.15.35 [INFO] [stderr] Compiling remain v0.1.2 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 24.33s [INFO] running `"docker" "inspect" "b6e22a898ecb7d63bcfc9bd73b547e611d8b7ae1b02c129c7b7e804536b540b3"` [INFO] running `"docker" "rm" "-f" "b6e22a898ecb7d63bcfc9bd73b547e611d8b7ae1b02c129c7b7e804536b540b3"` [INFO] [stdout] b6e22a898ecb7d63bcfc9bd73b547e611d8b7ae1b02c129c7b7e804536b540b3 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/remain/0.1.2:/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=forbid" "-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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"` [INFO] [stdout] f5f8d59c88c6c9f53bacc03bd62fa450503c834938f5fe16b644293472d333ac [INFO] running `"docker" "start" "-a" "f5f8d59c88c6c9f53bacc03bd62fa450503c834938f5fe16b644293472d333ac"` [INFO] [stderr] Compiling term v0.4.6 [INFO] [stderr] Compiling diff v0.1.11 [INFO] [stderr] Compiling filetime v0.2.6 [INFO] [stderr] Compiling synstructure v0.10.2 [INFO] [stderr] Compiling serde_derive v1.0.92 [INFO] [stderr] Compiling tester v0.5.0 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Compiling failure v0.1.5 [INFO] [stderr] Compiling rustfix v0.4.5 [INFO] [stderr] Compiling compiletest_rs v0.3.22 [INFO] [stderr] Compiling remain v0.1.2 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 33.43s [INFO] running `"docker" "inspect" "f5f8d59c88c6c9f53bacc03bd62fa450503c834938f5fe16b644293472d333ac"` [INFO] running `"docker" "rm" "-f" "f5f8d59c88c6c9f53bacc03bd62fa450503c834938f5fe16b644293472d333ac"` [INFO] [stdout] f5f8d59c88c6c9f53bacc03bd62fa450503c834938f5fe16b644293472d333ac [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/remain/0.1.2:/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=forbid" "-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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen"` [INFO] [stdout] 20af66532d79e2b73cd5459116e673254be82169aae8982b04418e09b8cb9b2c [INFO] running `"docker" "start" "-a" "20af66532d79e2b73cd5459116e673254be82169aae8982b04418e09b8cb9b2c"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/remain-d607dc588ce57c42 [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] Running /opt/crater/target/debug/deps/compiletest-489a31e481dcb661 [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test ui ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- ui stdout ---- [INFO] [stdout] thread 'ui' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/libcore/result.rs:999:5 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55f5fdc13edb - backtrace::backtrace::libunwind::trace::hcbf63b8d794b15f4 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stdout] 1: 0x55f5fdc13edb - backtrace::backtrace::trace_unsynchronized::h681e1cb201a9972d [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x55f5fdc13edb - std::sys_common::backtrace::_print::hd27175ce39811176 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stdout] 3: 0x55f5fdc13edb - std::sys_common::backtrace::print::h117e2eebf9a1e122 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stdout] 4: 0x55f5fdc13edb - std::panicking::default_hook::{{closure}}::h6369b988ee675335 [INFO] [stdout] at src/libstd/panicking.rs:198 [INFO] [stdout] 5: 0x55f5fdc13b6f - std::panicking::default_hook::hfaefd2bea4c25f9e [INFO] [stdout] at src/libstd/panicking.rs:209 [INFO] [stdout] 6: 0x55f5fdc14650 - std::panicking::rust_panic_with_hook::h02c52718165ccced [INFO] [stdout] at src/libstd/panicking.rs:475 [INFO] [stdout] 7: 0x55f5fdc141d2 - std::panicking::continue_panic_fmt::h9e135674c1df51b4 [INFO] [stdout] at src/libstd/panicking.rs:382 [INFO] [stdout] 8: 0x55f5fdc140b6 - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:309 [INFO] [stdout] 9: 0x55f5fdc33cbd - core::panicking::panic_fmt::h58c956553ac8538f [INFO] [stdout] at src/libcore/panicking.rs:85 [INFO] [stdout] 10: 0x55f5fdb35de8 - core::result::unwrap_failed::h30ff057536d4aa91 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libcore/macros.rs:18 [INFO] [stdout] 11: 0x55f5fd74b2cd - core::result::Result::unwrap::h8360d691bc4d421c [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libcore/result.rs:800 [INFO] [stdout] 12: 0x55f5fd773d87 - compiletest_rs::collect_tests_from_dir::h96f1e6f0c961b905 [INFO] [stdout] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.22/src/lib.rs:165 [INFO] [stdout] 13: 0x55f5fd77345a - compiletest_rs::make_tests::h86bd53372732a08e [INFO] [stdout] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.22/src/lib.rs:124 [INFO] [stdout] 14: 0x55f5fd7729df - compiletest_rs::run_tests::h3d3af4307ed1ba46 [INFO] [stdout] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.22/src/lib.rs:79 [INFO] [stdout] 15: 0x55f5fd6e0327 - compiletest::ui::hae024cfbe33f3c90 [INFO] [stdout] at tests/compiletest.rs:24 [INFO] [stdout] 16: 0x55f5fd6dfcda - compiletest::ui::{{closure}}::hdbef04a672c33184 [INFO] [stdout] at tests/compiletest.rs:2 [INFO] [stdout] 17: 0x55f5fd6e063e - core::ops::function::FnOnce::call_once::haf730b8279227088 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libcore/ops/function.rs:231 [INFO] [stdout] 18: 0x55f5fdbd065f - as core::ops::function::FnOnce>::call_once::h051e7835d417eabd [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/liballoc/boxed.rs:746 [INFO] [stdout] 19: 0x55f5fdc1caba - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:85 [INFO] [stdout] 20: 0x55f5fdbeb038 - std::panicking::try::h2a4c737ee7913c25 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panicking.rs:273 [INFO] [stdout] 21: 0x55f5fdbeb038 - std::panic::catch_unwind::hb4a850da3c0f461d [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panic.rs:388 [INFO] [stdout] 22: 0x55f5fdbeb038 - test::run_test::run_test_inner::{{closure}}::hf1081f8a70de250d [INFO] [stdout] at src/libtest/lib.rs:1466 [INFO] [stdout] 23: 0x55f5fdbc5bd5 - std::sys_common::backtrace::__rust_begin_short_backtrace::h342b596609fb99e3 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/sys_common/backtrace.rs:77 [INFO] [stdout] 24: 0x55f5fdbc9b65 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h513520560543c60c [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/thread/mod.rs:470 [INFO] [stdout] 25: 0x55f5fdbc9b65 - as core::ops::function::FnOnce<()>>::call_once::ha4e1c61c6177bb54 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panic.rs:309 [INFO] [stdout] 26: 0x55f5fdbc9b65 - std::panicking::try::do_call::h0eb4a0e045c14646 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panicking.rs:294 [INFO] [stdout] 27: 0x55f5fdc1caba - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:85 [INFO] [stdout] 28: 0x55f5fdbca182 - std::panicking::try::h20774757cea1a66c [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panicking.rs:273 [INFO] [stdout] 29: 0x55f5fdbca182 - std::panic::catch_unwind::h38e40a373c8b5452 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panic.rs:388 [INFO] [stdout] 30: 0x55f5fdbca182 - std::thread::Builder::spawn_unchecked::{{closure}}::h9bfd91224a2fd035 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/thread/mod.rs:469 [INFO] [stdout] 31: 0x55f5fdbca182 - core::ops::function::FnOnce::call_once{{vtable.shim}}::ha2d3b3105bb1d7d1 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libcore/ops/function.rs:231 [INFO] [stdout] 32: 0x55f5fdc0593f - as core::ops::function::FnOnce>::call_once::hc6099fbe1f2e9038 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/liballoc/boxed.rs:746 [INFO] [stdout] 33: 0x55f5fdc1bee0 - as core::ops::function::FnOnce>::call_once::h1b61db05dcd8ce54 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/liballoc/boxed.rs:746 [INFO] [stdout] 34: 0x55f5fdc1bee0 - std::sys_common::thread::start_thread::hd3ed9053e9fea488 [INFO] [stdout] at src/libstd/sys_common/thread.rs:13 [INFO] [stdout] 35: 0x55f5fdc1bee0 - std::sys::unix::thread::Thread::new::thread_start::hc17e4e4c7ed2fc8f [INFO] [stdout] at src/libstd/sys/unix/thread.rs:79 [INFO] [stdout] 36: 0x7fe42744e4a4 - start_thread [INFO] [stdout] 37: 0x7fe426f79d0f - __clone [INFO] [stdout] 38: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] ui [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 '--test compiletest' [INFO] running `"docker" "inspect" "20af66532d79e2b73cd5459116e673254be82169aae8982b04418e09b8cb9b2c"` [INFO] running `"docker" "rm" "-f" "20af66532d79e2b73cd5459116e673254be82169aae8982b04418e09b8cb9b2c"` [INFO] [stdout] 20af66532d79e2b73cd5459116e673254be82169aae8982b04418e09b8cb9b2c