[INFO] crate crfsuite 0.2.6 is already in cache [INFO] extracting crate crfsuite 0.2.6 into work/ex/beta-1.37-6/sources/1.36.0/reg/crfsuite/0.2.6 [INFO] extracting crate crfsuite 0.2.6 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/crfsuite/0.2.6 [INFO] validating manifest of crfsuite-0.2.6 on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of crfsuite-0.2.6 on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing crfsuite-0.2.6 [INFO] finished frobbing crfsuite-0.2.6 [INFO] frobbed toml for crfsuite-0.2.6 written to work/ex/beta-1.37-6/sources/1.36.0/reg/crfsuite/0.2.6/Cargo.toml [INFO] started frobbing crfsuite-0.2.6 [INFO] finished frobbing crfsuite-0.2.6 [INFO] frobbed toml for crfsuite-0.2.6 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/crfsuite/0.2.6/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing crfsuite-0.2.6 against 1.36.0 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/crfsuite/0.2.6:/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" "+1.36.0" "build" "--frozen"` [INFO] [stdout] 27c1654849c74609522137cc4d80998bbbcb46c105686f4b3bec6dfab47b92bf [INFO] running `"docker" "start" "-a" "27c1654849c74609522137cc4d80998bbbcb46c105686f4b3bec6dfab47b92bf"` [INFO] [stderr] Compiling crfsuite-sys v0.1.4 [INFO] [stderr] Compiling crfsuite v0.2.6 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:370:21 [INFO] [stderr] | [INFO] [stderr] 370 | let mut crf_item = &mut crf_items[t]; [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:373:21 [INFO] [stderr] | [INFO] [stderr] 373 | let mut contents = slice::from_raw_parts_mut(crf_item.contents, crf_item.num_contents as usize); [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:764:21 [INFO] [stderr] | [INFO] [stderr] 764 | let mut crf_item = &mut crf_items[t]; [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 8.05s [INFO] running `"docker" "inspect" "27c1654849c74609522137cc4d80998bbbcb46c105686f4b3bec6dfab47b92bf"` [INFO] running `"docker" "rm" "-f" "27c1654849c74609522137cc4d80998bbbcb46c105686f4b3bec6dfab47b92bf"` [INFO] [stdout] 27c1654849c74609522137cc4d80998bbbcb46c105686f4b3bec6dfab47b92bf [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/crfsuite/0.2.6:/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" "+1.36.0" "test" "--frozen" "--no-run"` [INFO] [stdout] e67e80a89a959810640a0b3ddcce283b6be175648d224a74f8f00dcd7eaa500a [INFO] running `"docker" "start" "-a" "e67e80a89a959810640a0b3ddcce283b6be175648d224a74f8f00dcd7eaa500a"` [INFO] [stderr] Compiling crfsuite v0.2.6 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:370:21 [INFO] [stderr] | [INFO] [stderr] 370 | let mut crf_item = &mut crf_items[t]; [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:373:21 [INFO] [stderr] | [INFO] [stderr] 373 | let mut contents = slice::from_raw_parts_mut(crf_item.contents, crf_item.num_contents as usize); [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:764:21 [INFO] [stderr] | [INFO] [stderr] 764 | let mut crf_item = &mut crf_items[t]; [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.09s [INFO] running `"docker" "inspect" "e67e80a89a959810640a0b3ddcce283b6be175648d224a74f8f00dcd7eaa500a"` [INFO] running `"docker" "rm" "-f" "e67e80a89a959810640a0b3ddcce283b6be175648d224a74f8f00dcd7eaa500a"` [INFO] [stdout] e67e80a89a959810640a0b3ddcce283b6be175648d224a74f8f00dcd7eaa500a [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/crfsuite/0.2.6:/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" "+1.36.0" "test" "--frozen"` [INFO] [stdout] 5d4bb88cf5b226b0eba085228d6eb8cbf7d811665f5ff4ef9ddb88a26ec03440 [INFO] running `"docker" "start" "-a" "5d4bb88cf5b226b0eba085228d6eb8cbf7d811665f5ff4ef9ddb88a26ec03440"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.62s [INFO] [stderr] Running /opt/crater/target/debug/deps/crfsuite-8651aab4add5f840 [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test tests::test_attribute ... ok [INFO] [stdout] test tests::test_algorithm_enum_to_str ... ok [INFO] [stdout] test tests::test_str_to_algorithm_enum ... ok [INFO] [stdout] test tests::test_str_to_graphical_model_enum ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/test_tagger-f44045a30e7c090a [INFO] [stdout] running 6 tests [INFO] [stdout] test test_tag ... ok [INFO] [stdout] test test_open_not_existing_model_does_not_panic ... ok [INFO] [stdout] test test_open_model ... ok [INFO] [stdout] test test_create_model_from_memory_invalid_model ... ok [INFO] [stdout] test test_create_model_from_memory ... ok [INFO] [stderr] error: test failed, to rerun pass '--test test_tagger' [INFO] [stdout] test test_dump_model ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- test_dump_model stdout ---- [INFO] [stdout] thread 'test_dump_model' panicked at 'create file failed: Os { code: 30, kind: Other, message: "Read-only file system" }', src/libcore/result.rs:999:5 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55f39055d2f3 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h6485381528590a55 [INFO] [stdout] at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39 [INFO] [stdout] 1: 0x55f390558c2b - std::sys_common::backtrace::_print::h49a82ae9552e35c7 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:71 [INFO] [stdout] 2: 0x55f39055c036 - std::panicking::default_hook::{{closure}}::he20974adbefcc046 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stdout] at src/libstd/panicking.rs:197 [INFO] [stdout] 3: 0x55f39055bd5e - std::panicking::default_hook::he4af6af4ac7fef7b [INFO] [stdout] at src/libstd/panicking.rs:208 [INFO] [stdout] 4: 0x55f39055c73f - std::panicking::rust_panic_with_hook::h057ff03eb4c8000f [INFO] [stdout] at src/libstd/panicking.rs:474 [INFO] [stdout] 5: 0x55f39055c2c1 - std::panicking::continue_panic_fmt::ha6d6ae144369025b [INFO] [stdout] at src/libstd/panicking.rs:381 [INFO] [stdout] 6: 0x55f39055c1a5 - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:308 [INFO] [stdout] 7: 0x55f39056e4ec - core::panicking::panic_fmt::hc4f83bfed80aeabd [INFO] [stdout] at src/libcore/panicking.rs:85 [INFO] [stdout] 8: 0x55f3904f8156 - core::result::unwrap_failed::ha0d7da2be52f2497 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/macros.rs:18 [INFO] [stdout] 9: 0x55f3904f853e - core::result::Result::expect::ha8ffc710045a2d40 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/result.rs:827 [INFO] [stdout] 10: 0x55f3904f2c1f - crfsuite::Model::dump_file::h0c8a33c7acd33c8d [INFO] [stdout] at /opt/crater/workdir/src/lib.rs:688 [INFO] [stdout] 11: 0x55f3904f0af5 - test_tagger::test_dump_model::h69c447439361cd31 [INFO] [stdout] at tests/test_tagger.rs:24 [INFO] [stdout] 12: 0x55f3904f0a89 - test_tagger::test_dump_model::{{closure}}::hcd0064433fc91575 [INFO] [stdout] at tests/test_tagger.rs:22 [INFO] [stdout] 13: 0x55f3904f483d - core::ops::function::FnOnce::call_once::h846b87b03318e5b2 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/ops/function.rs:231 [INFO] [stdout] 14: 0x55f39050524e - as core::ops::function::FnOnce>::call_once::h6b004fa8f4fc1608 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/liballoc/boxed.rs:704 [INFO] [stdout] 15: 0x55f39055f469 - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:85 [INFO] [stdout] 16: 0x55f39051fb47 - test::run_test::run_test_inner::{{closure}}::h9a4d23c41d058d37 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panicking.rs:272 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panic.rs:394 [INFO] [stdout] at src/libtest/lib.rs:1468 [INFO] [stdout] 17: 0x55f3904fa564 - std::sys_common::backtrace::__rust_begin_short_backtrace::h3765d76361a33ff7 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/sys_common/backtrace.rs:136 [INFO] [stdout] 18: 0x55f3904fe614 - std::panicking::try::do_call::h6f86e980b52f74d5 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/thread/mod.rs:470 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panic.rs:315 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panicking.rs:293 [INFO] [stdout] 19: 0x55f39055f469 - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:85 [INFO] [stdout] 20: 0x55f3904fec21 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h760b8a2b155f54c3 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panicking.rs:272 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panic.rs:394 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/thread/mod.rs:469 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/ops/function.rs:231 [INFO] [stdout] 21: 0x55f3905508ee - as core::ops::function::FnOnce>::call_once::h805c3cc89d534c05 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/liballoc/boxed.rs:704 [INFO] [stdout] 22: 0x55f39055eb4f - std::sys::unix::thread::Thread::new::thread_start::h6f10b78f26c98dc6 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/liballoc/boxed.rs:704 [INFO] [stdout] at src/libstd/sys_common/thread.rs:13 [INFO] [stdout] at src/libstd/sys/unix/thread.rs:79 [INFO] [stdout] 23: 0x7f3e5cb684a3 - start_thread [INFO] [stdout] 24: 0x7f3e5c693d0e - __clone [INFO] [stdout] 25: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] test_dump_model [INFO] [stdout] [INFO] [stdout] test result: FAILED. 5 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "5d4bb88cf5b226b0eba085228d6eb8cbf7d811665f5ff4ef9ddb88a26ec03440"` [INFO] running `"docker" "rm" "-f" "5d4bb88cf5b226b0eba085228d6eb8cbf7d811665f5ff4ef9ddb88a26ec03440"` [INFO] [stdout] 5d4bb88cf5b226b0eba085228d6eb8cbf7d811665f5ff4ef9ddb88a26ec03440