Dec 15 14:33:44.651 INFO testing fonterator-0.3.0 against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550 Dec 15 14:33:44.651 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"` Dec 15 14:33:45.083 INFO [stdout] d6fd077f769dac06a65a23a1f140bea948929d474af50e7fa53fc938dec88537 Dec 15 14:33:45.085 INFO running `"docker" "start" "-a" "d6fd077f769dac06a65a23a1f140bea948929d474af50e7fa53fc938dec88537"` Dec 15 14:33:46.414 INFO [stderr] usermod: no changes Dec 15 14:33:46.555 INFO [stderr] Compiling png v0.10.0 Dec 15 14:33:48.753 INFO [stderr] Compiling footile v0.2.0 Dec 15 14:33:50.949 INFO [stderr] Compiling fonterator v0.3.0 (/source) Dec 15 14:33:54.033 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.58s Dec 15 14:33:54.037 INFO [stderr] su: No module specific data is present Dec 15 14:33:55.083 INFO running `"docker" "inspect" "d6fd077f769dac06a65a23a1f140bea948929d474af50e7fa53fc938dec88537"` Dec 15 14:33:55.311 INFO running `"docker" "rm" "-f" "d6fd077f769dac06a65a23a1f140bea948929d474af50e7fa53fc938dec88537"` Dec 15 14:33:55.511 INFO [stdout] d6fd077f769dac06a65a23a1f140bea948929d474af50e7fa53fc938dec88537 Dec 15 14:33:55.515 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"` Dec 15 14:33:56.017 INFO [stdout] ee0e91b50cae93aa2174c3c8423aec3385b39a27db016f945f767da29e4d0c59 Dec 15 14:33:56.024 INFO running `"docker" "start" "-a" "ee0e91b50cae93aa2174c3c8423aec3385b39a27db016f945f767da29e4d0c59"` Dec 15 14:33:57.318 INFO [stderr] usermod: no changes Dec 15 14:33:57.387 INFO [stderr] Compiling fonterator v0.3.0 (/source) Dec 15 14:33:59.708 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.37s Dec 15 14:33:59.711 INFO [stderr] su: No module specific data is present Dec 15 14:34:00.044 INFO running `"docker" "inspect" "ee0e91b50cae93aa2174c3c8423aec3385b39a27db016f945f767da29e4d0c59"` Dec 15 14:34:00.160 INFO running `"docker" "rm" "-f" "ee0e91b50cae93aa2174c3c8423aec3385b39a27db016f945f767da29e4d0c59"` Dec 15 14:34:00.333 INFO [stdout] ee0e91b50cae93aa2174c3c8423aec3385b39a27db016f945f767da29e4d0c59 Dec 15 14:34:00.335 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"` Dec 15 14:34:00.569 INFO [stdout] f75e83ce6a2505a0bcda297eaeb95431c52ad53663de759e3cdc6d09d497f42a Dec 15 14:34:00.573 INFO running `"docker" "start" "-a" "f75e83ce6a2505a0bcda297eaeb95431c52ad53663de759e3cdc6d09d497f42a"` Dec 15 14:34:01.370 INFO [stderr] usermod: no changes Dec 15 14:34:01.458 INFO [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.05s Dec 15 14:34:01.471 INFO [stderr] Running /target/debug/deps/fonterator-639cff3f4b172b5c Dec 15 14:34:01.484 INFO [stdout] Dec 15 14:34:01.484 INFO [stdout] running 0 tests Dec 15 14:34:01.484 INFO [stdout] Dec 15 14:34:01.484 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out Dec 15 14:34:01.484 INFO [stdout] Dec 15 14:34:01.487 INFO [stderr] Doc-tests fonterator Dec 15 14:34:03.558 INFO [stdout] Dec 15 14:34:03.558 INFO [stdout] running 1 test Dec 15 14:34:12.028 INFO [stdout] test src/lib.rs - (line 19) ... FAILED Dec 15 14:34:12.028 INFO [stdout] Dec 15 14:34:12.028 INFO [stdout] failures: Dec 15 14:34:12.028 INFO [stdout] Dec 15 14:34:12.028 INFO [stdout] ---- src/lib.rs - (line 19) stdout ---- Dec 15 14:34:12.028 INFO [stdout] thread 'src/lib.rs - (line 19)' panicked at 'test executable failed: Dec 15 14:34:12.028 INFO [stdout] Dec 15 14:34:12.028 INFO [stdout] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/libcore/result.rs:1009:5 Dec 15 14:34:12.028 INFO [stdout] stack backtrace: Dec 15 14:34:12.028 INFO [stdout] 0: 0x5624e39183f3 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h2c40bdfb30f25bdd Dec 15 14:34:12.028 INFO [stdout] at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:49 Dec 15 14:34:12.028 INFO [stdout] 1: 0x5624e3912ec8 - std::sys_common::backtrace::_print::he11ceebc70626ac9 Dec 15 14:34:12.028 INFO [stdout] at src/libstd/sys_common/backtrace.rs:71 Dec 15 14:34:12.028 INFO [stdout] 2: 0x5624e3917512 - std::panicking::default_hook::{{closure}}::h4fde3ffb19c01413 Dec 15 14:34:12.028 INFO [stdout] at src/libstd/sys_common/backtrace.rs:59 Dec 15 14:34:12.028 INFO [stdout] at src/libstd/panicking.rs:210 Dec 15 14:34:12.028 INFO [stdout] 3: 0x5624e3917284 - std::panicking::default_hook::hf0c15a583008ed0d Dec 15 14:34:12.028 INFO [stdout] at src/libstd/panicking.rs:224 Dec 15 14:34:12.028 INFO [stdout] 4: 0x5624e3917bc0 - std::panicking::rust_panic_with_hook::hc1663f6bc7813185 Dec 15 14:34:12.028 INFO [stdout] at src/libstd/panicking.rs:487 Dec 15 14:34:12.028 INFO [stdout] 5: 0x5624e3917741 - std::panicking::continue_panic_fmt::h42bc2d03ddf03b3e Dec 15 14:34:12.028 INFO [stdout] at src/libstd/panicking.rs:394 Dec 15 14:34:12.028 INFO [stdout] 6: 0x5624e3917625 - rust_begin_unwind Dec 15 14:34:12.028 INFO [stdout] at src/libstd/panicking.rs:321 Dec 15 14:34:12.028 INFO [stdout] 7: 0x5624e392633c - core::panicking::panic_fmt::h44df04385fc0c5a6 Dec 15 14:34:12.028 INFO [stdout] at src/libcore/panicking.rs:95 Dec 15 14:34:12.028 INFO [stdout] 8: 0x5624e38f6d70 - core::result::unwrap_failed::h9fca785382f2a530 Dec 15 14:34:12.028 INFO [stdout] at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/libcore/macros.rs:26 Dec 15 14:34:12.028 INFO [stdout] 9: 0x5624e387f88e - >::unwrap::h3f53d744f6070d85 Dec 15 14:34:12.028 INFO [stdout] 10: 0x5624e3882356 - rust_out::main::h19287f9e3b324627 Dec 15 14:34:12.028 INFO [stdout] 11: 0x5624e3881ec2 - std::rt::lang_start::{{closure}}::h3580223923d622c3 Dec 15 14:34:12.028 INFO [stdout] 12: 0x5624e39175c2 - std::panicking::try::do_call::h7a0b92633a1e33d9 Dec 15 14:34:12.028 INFO [stdout] at src/libstd/rt.rs:59 Dec 15 14:34:12.028 INFO [stdout] at src/libstd/panicking.rs:306 Dec 15 14:34:12.028 INFO [stdout] 13: 0x5624e3925299 - __rust_maybe_catch_panic Dec 15 14:34:12.028 INFO [stdout] at src/libpanic_unwind/lib.rs:102 Dec 15 14:34:12.028 INFO [stdout] 14: 0x5624e3917f93 - std::rt::lang_start_internal::h3628368e60eab2bb Dec 15 14:34:12.028 INFO [stdout] at src/libstd/panicking.rs:285 Dec 15 14:34:12.028 INFO [stdout] at src/libstd/panic.rs:398 Dec 15 14:34:12.028 INFO [stdout] at src/libstd/rt.rs:58 Dec 15 14:34:12.028 INFO [stdout] 15: 0x5624e3881ea4 - std::rt::lang_start::h9c1192a90e75cd5f Dec 15 14:34:12.028 INFO [stdout] 16: 0x5624e388240a - main Dec 15 14:34:12.028 INFO [stdout] 17: 0x7f6e72fd382f - __libc_start_main Dec 15 14:34:12.028 INFO [stdout] 18: 0x5624e3821428 - _start Dec 15 14:34:12.028 INFO [stdout] 19: 0x0 - Dec 15 14:34:12.028 INFO [stdout] Dec 15 14:34:12.028 INFO [stdout] ', src/librustdoc/test.rs:361:17 Dec 15 14:34:12.028 INFO [stdout] stack backtrace: Dec 15 14:34:12.028 INFO [stdout] 0: 0x7f0394238f63 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h2c40bdfb30f25bdd Dec 15 14:34:12.028 INFO [stdout] at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:49 Dec 15 14:34:12.028 INFO [stdout] 1: 0x7f039422ffc8 - std::sys_common::backtrace::_print::he11ceebc70626ac9 Dec 15 14:34:12.028 INFO [stdout] at src/libstd/sys_common/backtrace.rs:71 Dec 15 14:34:12.028 INFO [stdout] 2: 0x7f0394235242 - std::panicking::default_hook::{{closure}}::h4fde3ffb19c01413 Dec 15 14:34:12.028 INFO [stdout] at src/libstd/sys_common/backtrace.rs:59 Dec 15 14:34:12.029 INFO [stdout] at src/libstd/panicking.rs:210 Dec 15 14:34:12.029 INFO [stdout] 3: 0x7f0394234f37 - std::panicking::default_hook::hf0c15a583008ed0d Dec 15 14:34:12.029 INFO [stdout] at src/libstd/panicking.rs:218 Dec 15 14:34:12.029 INFO [stdout] 4: 0x7f0396440121 - rustc::util::common::panic_hook::h9ea0dae535cf4332 Dec 15 14:34:12.029 INFO [stdout] 5: 0x7f0394235a29 - std::panicking::rust_panic_with_hook::hc1663f6bc7813185 Dec 15 14:34:12.029 INFO [stdout] at src/libstd/panicking.rs:491 Dec 15 14:34:12.029 INFO [stdout] 6: 0x7f03942354d1 - std::panicking::continue_panic_fmt::h42bc2d03ddf03b3e Dec 15 14:34:12.029 INFO [stdout] at src/libstd/panicking.rs:394 Dec 15 14:34:12.029 INFO [stdout] 7: 0x7f039423541e - std::panicking::begin_panic_fmt::h2207969583fb9324 Dec 15 14:34:12.029 INFO [stdout] at src/libstd/panicking.rs:349 Dec 15 14:34:12.029 INFO [stdout] 8: 0x562e1315570d - rustdoc::test::run_test::h2c651d061c730af3 Dec 15 14:34:12.029 INFO [stdout] at src/librustdoc/test.rs:361 Dec 15 14:34:12.029 INFO [stdout] 9: 0x562e13058970 - >::set::hb2279029c711f1aa Dec 15 14:34:12.029 INFO [stdout] at src/librustdoc/test.rs:653 Dec 15 14:34:12.029 INFO [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/scoped-tls-0.1.2/src/lib.rs:155 Dec 15 14:34:12.029 INFO [stdout] at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/libsyntax/lib.rs:123 Dec 15 14:34:12.029 INFO [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/scoped-tls-0.1.2/src/lib.rs:155 Dec 15 14:34:12.029 INFO [stdout] 10: 0x562e1304b1cf - syntax::with_globals::hdce0de15652917e2 Dec 15 14:34:12.029 INFO [stdout] at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/libsyntax/lib.rs:122 Dec 15 14:34:12.029 INFO [stdout] 11: 0x562e12fe06c4 - std::panicking::try::do_call::h894d00d7135d3e7e Dec 15 14:34:12.029 INFO [stdout] at src/librustdoc/test.rs:650 Dec 15 14:34:12.029 INFO [stdout] at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/libstd/panic.rs:319 Dec 15 14:34:12.029 INFO [stdout] at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/libstd/panicking.rs:306 Dec 15 14:34:12.029 INFO [stdout] 12: 0x7f0394252669 - __rust_maybe_catch_panic Dec 15 14:34:12.029 INFO [stdout] at src/libpanic_unwind/lib.rs:102 Dec 15 14:34:12.029 INFO [stdout] 13: 0x562e13035a19 - rustc_driver::in_named_rustc_thread::hf3fa0f90a98912b5 Dec 15 14:34:12.029 INFO [stdout] at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/libstd/panicking.rs:285 Dec 15 14:34:12.029 INFO [stdout] at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/libstd/panic.rs:398 Dec 15 14:34:12.029 INFO [stdout] at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/librustc_driver/lib.rs:1556 Dec 15 14:34:12.029 INFO [stdout] 14: 0x562e1312c5a0 - >::call_box::h7655e33ec4e73ffe Dec 15 14:34:12.029 INFO [stdout] at src/librustdoc/test.rs:650 Dec 15 14:34:12.029 INFO [stdout] at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/liballoc/boxed.rs:673 Dec 15 14:34:12.029 INFO [stdout] 15: 0x7f039589ee12 - >::call_box::h44030fd31218bed2 Dec 15 14:34:12.029 INFO [stdout] at src/libtest/lib.rs:1476 Dec 15 14:34:12.029 INFO [stdout] at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/liballoc/boxed.rs:673 Dec 15 14:34:12.029 INFO [stdout] 16: 0x7f0394252669 - __rust_maybe_catch_panic Dec 15 14:34:12.029 INFO [stdout] at src/libpanic_unwind/lib.rs:102 Dec 15 14:34:12.029 INFO [stdout] 17: 0x7f03958bd407 - test::run_test::run_test_inner::{{closure}}::hfbfe4a58c0ebb01b Dec 15 14:34:12.029 INFO [stdout] at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/libstd/panicking.rs:285 Dec 15 14:34:12.029 INFO [stdout] at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/libstd/panic.rs:398 Dec 15 14:34:12.029 INFO [stdout] at src/libtest/lib.rs:1438 Dec 15 14:34:12.029 INFO [stdout] 18: 0x7f0395897314 - std::sys_common::backtrace::__rust_begin_short_backtrace::hd1f0cf202092f8d7 Dec 15 14:34:12.029 INFO [stdout] at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/libstd/sys_common/backtrace.rs:136 Dec 15 14:34:12.029 INFO [stdout] 19: 0x7f0395897904 - std::panicking::try::do_call::h5e99f92fbf448cf6 Dec 15 14:34:12.029 INFO [stdout] at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/libstd/thread/mod.rs:479 Dec 15 14:34:12.029 INFO [stdout] at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/libstd/panic.rs:319 Dec 15 14:34:12.029 INFO [stdout] at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/libstd/panicking.rs:306 Dec 15 14:34:12.029 INFO [stdout] 20: 0x7f0394252669 - __rust_maybe_catch_panic Dec 15 14:34:12.029 INFO [stdout] at src/libpanic_unwind/lib.rs:102 Dec 15 14:34:12.029 INFO [stdout] 21: 0x7f039589efcc - >::call_box::h8ae063aff93ccdb6 Dec 15 14:34:12.029 INFO [stdout] at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/libstd/panicking.rs:285 Dec 15 14:34:12.029 INFO [stdout] at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/libstd/panic.rs:398 Dec 15 14:34:12.029 INFO [stdout] at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/libstd/thread/mod.rs:478 Dec 15 14:34:12.029 INFO [stdout] at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/liballoc/boxed.rs:673 Dec 15 14:34:12.029 INFO [stdout] 22: 0x7f0394245b0d - std::sys::unix::thread::Thread::new::thread_start::h42c32b292fdd228f Dec 15 14:34:12.029 INFO [stdout] at /rustc/aa49d8ef14939ddec0e34b346b60174a5673d48f/src/liballoc/boxed.rs:683 Dec 15 14:34:12.029 INFO [stdout] at src/libstd/sys_common/thread.rs:24 Dec 15 14:34:12.029 INFO [stdout] at src/libstd/sys/unix/thread.rs:91 Dec 15 14:34:12.029 INFO [stdout] 23: 0x7f0393fb96b9 - start_thread Dec 15 14:34:12.029 INFO [stdout] 24: 0x7f03938d141c - clone Dec 15 14:34:12.029 INFO [stdout] 25: 0x0 - Dec 15 14:34:12.029 INFO [stdout] query stack during panic: Dec 15 14:34:12.029 INFO [stdout] end of query stack Dec 15 14:34:12.029 INFO [stdout] Dec 15 14:34:12.029 INFO [stdout] Dec 15 14:34:12.029 INFO [stdout] failures: Dec 15 14:34:12.029 INFO [stdout] src/lib.rs - (line 19) Dec 15 14:34:12.029 INFO [stdout] Dec 15 14:34:12.029 INFO [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out Dec 15 14:34:12.029 INFO [stdout] Dec 15 14:34:12.054 INFO [stderr] error: test failed, to rerun pass '--doc' Dec 15 14:34:12.054 INFO [stderr] su: No module specific data is present Dec 15 14:34:12.725 INFO running `"docker" "inspect" "f75e83ce6a2505a0bcda297eaeb95431c52ad53663de759e3cdc6d09d497f42a"` Dec 15 14:34:12.853 INFO running `"docker" "rm" "-f" "f75e83ce6a2505a0bcda297eaeb95431c52ad53663de759e3cdc6d09d497f42a"` Dec 15 14:34:12.994 INFO [stdout] f75e83ce6a2505a0bcda297eaeb95431c52ad53663de759e3cdc6d09d497f42a