[INFO] updating cached repository hacolab/wordcount [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/hacolab/wordcount [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/hacolab/wordcount" "work/ex/beta-1.38-1/sources/1.37.0/gh/hacolab/wordcount"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/hacolab/wordcount'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/hacolab/wordcount" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hacolab/wordcount"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hacolab/wordcount'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] e83d3069d3ccab637ddcca255f6e75808fa29472 [INFO] sha for GitHub repo hacolab/wordcount: e83d3069d3ccab637ddcca255f6e75808fa29472 [INFO] validating manifest of hacolab/wordcount on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of hacolab/wordcount on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing hacolab/wordcount [INFO] finished frobbing hacolab/wordcount [INFO] frobbed toml for hacolab/wordcount written to work/ex/beta-1.38-1/sources/1.37.0/gh/hacolab/wordcount/Cargo.toml [INFO] started frobbing hacolab/wordcount [INFO] finished frobbing hacolab/wordcount [INFO] frobbed toml for hacolab/wordcount written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hacolab/wordcount/Cargo.toml [INFO] crate hacolab/wordcount already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing hacolab/wordcount against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hacolab/wordcount:/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" "+1.37.0" "build" "--frozen"` [INFO] [stdout] ab9e03de0fdb901b3c527fb91a25b9bb45f1be602e479a04b99c691011f3638c [INFO] running `"docker" "start" "-a" "ab9e03de0fdb901b3c527fb91a25b9bb45f1be602e479a04b99c691011f3638c"` [INFO] [stderr] Compiling bicycle-book-wordcount v0.1.0 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.58s [INFO] running `"docker" "inspect" "ab9e03de0fdb901b3c527fb91a25b9bb45f1be602e479a04b99c691011f3638c"` [INFO] running `"docker" "rm" "-f" "ab9e03de0fdb901b3c527fb91a25b9bb45f1be602e479a04b99c691011f3638c"` [INFO] [stdout] ab9e03de0fdb901b3c527fb91a25b9bb45f1be602e479a04b99c691011f3638c [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hacolab/wordcount:/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" "+1.37.0" "test" "--frozen" "--no-run"` [INFO] [stdout] baa09b94bd3e5f2cecd16e5797f832868d740f0321a093c7643657b80aa8f6cf [INFO] running `"docker" "start" "-a" "baa09b94bd3e5f2cecd16e5797f832868d740f0321a093c7643657b80aa8f6cf"` [INFO] [stderr] Compiling bicycle-book-wordcount v0.1.0 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.53s [INFO] running `"docker" "inspect" "baa09b94bd3e5f2cecd16e5797f832868d740f0321a093c7643657b80aa8f6cf"` [INFO] running `"docker" "rm" "-f" "baa09b94bd3e5f2cecd16e5797f832868d740f0321a093c7643657b80aa8f6cf"` [INFO] [stdout] baa09b94bd3e5f2cecd16e5797f832868d740f0321a093c7643657b80aa8f6cf [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hacolab/wordcount:/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" "+1.37.0" "test" "--frozen"` [INFO] [stdout] 0c95d42f90e394f5a83b37a611d85b9c09534c9340d2de65e9b69f83d532af1c [INFO] running `"docker" "start" "-a" "0c95d42f90e394f5a83b37a611d85b9c09534c9340d2de65e9b69f83d532af1c"` [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stdout] running 4 tests [INFO] [stderr] Running /opt/crater/target/debug/deps/bicycle_book_wordcount-0625276127efda2c [INFO] [stdout] test test::word_count_works ... ok [INFO] [stdout] test test::word_count_works3 ... ok [INFO] [stdout] test test::result_test ... FAILED [INFO] [stdout] test test::word_count_o_not_contain_unknown_words ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- test::result_test stdout ---- [INFO] [stdout] Error: Os { code: 30, kind: Other, message: "Read-only file system" } [INFO] [stdout] thread 'test::result_test' panicked at 'assertion failed: `(left == right)` [INFO] [stdout] left: `1`, [INFO] [stdout] right: `0`: the test returned a termination value with a non-zero status code (1) which indicates a failure', src/libtest/lib.rs:334:5 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55f3dd0062eb - backtrace::backtrace::libunwind::trace::hfe5db90796807973 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stdout] 1: 0x55f3dd0062eb - backtrace::backtrace::trace_unsynchronized::h34b865a835594335 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x55f3dd0062eb - std::sys_common::backtrace::_print::h527254ae44989167 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stdout] 3: 0x55f3dd0062eb - std::sys_common::backtrace::print::he85dd5ddddf46503 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stdout] 4: 0x55f3dd0062eb - std::panicking::default_hook::{{closure}}::h847a2eb38b396f14 [INFO] [stdout] at src/libstd/panicking.rs:200 [INFO] [stdout] 5: 0x55f3dd005f5a - std::panicking::default_hook::h2ca0f9a30a0e206b [INFO] [stdout] at src/libstd/panicking.rs:211 [INFO] [stdout] 6: 0x55f3dd006a60 - std::panicking::rust_panic_with_hook::hffcefc09751839d1 [INFO] [stdout] at src/libstd/panicking.rs:477 [INFO] [stdout] 7: 0x55f3dd0065e2 - std::panicking::continue_panic_fmt::hc0f142c930c846fc [INFO] [stdout] at src/libstd/panicking.rs:384 [INFO] [stdout] 8: 0x55f3dd00652f - std::panicking::begin_panic_fmt::ha6acf0ffd6d7f80d [INFO] [stdout] at src/libstd/panicking.rs:339 [INFO] [stdout] 9: 0x55f3dcdd5b70 - test::assert_test_result::h9af48ea9c2a04110 [INFO] [stdout] at /opt/crater/workdir/<::std::macros::panic macros>:9 [INFO] [stdout] 10: 0x55f3dcdccf0c - bicycle_book_wordcount::test::result_test::{{closure}}::hd402fe2bd39586c0 [INFO] [stdout] at src/lib.rs:102 [INFO] [stdout] 11: 0x55f3dcdd62be - core::ops::function::FnOnce::call_once::he5ba63e04ad45661 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/ops/function.rs:231 [INFO] [stdout] 12: 0x55f3dcde24cf - as core::ops::function::FnOnce>::call_once::h4a13ee3f0d7b4201 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:746 [INFO] [stdout] 13: 0x55f3dd00942a - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:82 [INFO] [stdout] 14: 0x55f3dcdfcac8 - std::panicking::try::h5a93466ab2078586 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:275 [INFO] [stdout] 15: 0x55f3dcdfcac8 - std::panic::catch_unwind::h752cbeae6ac7bdea [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panic.rs:394 [INFO] [stdout] 16: 0x55f3dcdfcac8 - test::run_test::run_test_inner::{{closure}}::h206c9c16936edaca [INFO] [stdout] at src/libtest/lib.rs:1466 [INFO] [stdout] 17: 0x55f3dcdd7945 - std::sys_common::backtrace::__rust_begin_short_backtrace::hc7edbac42990d270 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/sys_common/backtrace.rs:77 [INFO] [stdout] 18: 0x55f3dcddba05 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::he53c58e7adee87af [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/thread/mod.rs:470 [INFO] [stdout] 19: 0x55f3dcddba05 - as core::ops::function::FnOnce<()>>::call_once::h1aff7c42b6bb3726 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panic.rs:315 [INFO] [stdout] 20: 0x55f3dcddba05 - std::panicking::try::do_call::h41f8559f88100f6c [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:296 [INFO] [stdout] 21: 0x55f3dd00942a - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:82 [INFO] [stdout] 22: 0x55f3dcddc102 - std::panicking::try::hb54ba808181fe352 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:275 [INFO] [stdout] 23: 0x55f3dcddc102 - std::panic::catch_unwind::h555ccf4e835e93f4 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panic.rs:394 [INFO] [stdout] 24: 0x55f3dcddc102 - std::thread::Builder::spawn_unchecked::{{closure}}::hd4dae6e19e80fc1a [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/thread/mod.rs:469 [INFO] [stdout] 25: 0x55f3dcddc102 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hc35d54c07710e1a1 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/ops/function.rs:231 [INFO] [stdout] 26: 0x55f3dcffb82f - as core::ops::function::FnOnce>::call_once::h42806b83647d4c79 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:746 [INFO] [stdout] 27: 0x55f3dd008860 - as core::ops::function::FnOnce>::call_once::h83c921c8e826dd1d [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:746 [INFO] [stdout] 28: 0x55f3dd008860 - std::sys_common::thread::start_thread::h2613204ce513782e [INFO] [stdout] at src/libstd/sys_common/thread.rs:13 [INFO] [stdout] 29: 0x55f3dd008860 - std::sys::unix::thread::Thread::new::thread_start::h4570080769500bcd [INFO] [stdout] at src/libstd/sys/unix/thread.rs:79 [INFO] [stdout] 30: 0x7fd49b2dd4a4 - start_thread [INFO] [stdout] 31: 0x7fd49ae08d0f - __clone [INFO] [stdout] 32: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] test::result_test [INFO] [stdout] [INFO] [stdout] test result: FAILED. 3 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" "0c95d42f90e394f5a83b37a611d85b9c09534c9340d2de65e9b69f83d532af1c"` [INFO] running `"docker" "rm" "-f" "0c95d42f90e394f5a83b37a611d85b9c09534c9340d2de65e9b69f83d532af1c"` [INFO] [stdout] 0c95d42f90e394f5a83b37a611d85b9c09534c9340d2de65e9b69f83d532af1c