[INFO] crate variable_size_byte_writer 0.1.5 is already in cache [INFO] testing variable_size_byte_writer-0.1.5 against 1.38.0 for beta-1.39-1 [INFO] extracting crate variable_size_byte_writer 0.1.5 into work/builds/worker-6/source [INFO] validating manifest of crates.io crate variable_size_byte_writer 0.1.5 on toolchain 1.38.0 [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate variable_size_byte_writer 0.1.5 [INFO] finished tweaking crates.io crate variable_size_byte_writer 0.1.5 [INFO] tweaked toml for crates.io crate variable_size_byte_writer 0.1.5 written to work/builds/worker-6/source/Cargo.toml [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/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" "+1.38.0" "build" "--frozen"` [INFO] [stdout] a796f3c4b42bc8f4dcf68d10bad98e92e450e18954662b75278b28c311841371 [INFO] running `"docker" "start" "-a" "a796f3c4b42bc8f4dcf68d10bad98e92e450e18954662b75278b28c311841371"` [INFO] [stderr] Compiling typenum_loops v0.2.0 [INFO] [stderr] Compiling variable_size_byte_writer v0.1.5 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.27s [INFO] running `"docker" "inspect" "a796f3c4b42bc8f4dcf68d10bad98e92e450e18954662b75278b28c311841371"` [INFO] running `"docker" "rm" "-f" "a796f3c4b42bc8f4dcf68d10bad98e92e450e18954662b75278b28c311841371"` [INFO] [stdout] a796f3c4b42bc8f4dcf68d10bad98e92e450e18954662b75278b28c311841371 [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/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" "+1.38.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 75ec8013efe7810649ffe4c5b1ed513775e67d22a743e945fc4d7ec37d0fb763 [INFO] running `"docker" "start" "-a" "75ec8013efe7810649ffe4c5b1ed513775e67d22a743e945fc4d7ec37d0fb763"` [INFO] [stderr] Compiling variable_size_byte_writer v0.1.5 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.54s [INFO] running `"docker" "inspect" "75ec8013efe7810649ffe4c5b1ed513775e67d22a743e945fc4d7ec37d0fb763"` [INFO] running `"docker" "rm" "-f" "75ec8013efe7810649ffe4c5b1ed513775e67d22a743e945fc4d7ec37d0fb763"` [INFO] [stdout] 75ec8013efe7810649ffe4c5b1ed513775e67d22a743e945fc4d7ec37d0fb763 [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/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" "+1.38.0" "test" "--frozen"` [INFO] [stdout] b6b94435d3017a21117df7d4701722a364517f98f7bc632d154093c4158d21ab [INFO] running `"docker" "start" "-a" "b6b94435d3017a21117df7d4701722a364517f98f7bc632d154093c4158d21ab"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.00s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/variable_size_byte_writer-69419890c25a952a [INFO] [stdout] [INFO] [stdout] running 17 tests [INFO] [stdout] test tests::test_all_bytes ... ok [INFO] [stdout] test tests::test_complete_bytes ... ok [INFO] [stdout] test tests::test_can_insert ... ok [INFO] [stdout] test tests::test_erase_all_bytes ... ok [INFO] [stdout] test tests::test_erase_complete_bytes ... ok [INFO] [stdout] test tests::test_flush ... ok [INFO] [stdout] test tests::test_flush_complete_bytes ... ok [INFO] [stdout] test tests::test_new ... ok [INFO] [stdout] test tests::test_move_range_to_start ... ok [INFO] [stdout] test tests::test_padding ... ok [INFO] [stdout] test tests::test_partial_bits ... ok [INFO] [stdout] test tests::test_insert ... ok [INFO] [stdout] test tests::test_with_capacity ... ok [INFO] [stdout] test tests::test_write ... ok [INFO] [stdout] test tests::test_partial_byte ... ok [INFO] [stdout] test tests::test_write_range ... ok [INFO] [stdout] test tests::test_drop ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- tests::test_drop stdout ---- [INFO] [stdout] thread 'tests::test_drop' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/libcore/result.rs:1084:5 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x563b3f153b2b - backtrace::backtrace::libunwind::trace::h89fcc71e59e3bc5b [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88 [INFO] [stdout] 1: 0x563b3f153b2b - backtrace::backtrace::trace_unsynchronized::h0bad9be1379e729a [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x563b3f153b2b - std::sys_common::backtrace::_print::hd3382a1f33c473da [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stdout] 3: 0x563b3f153b2b - std::sys_common::backtrace::print::h0ec6f03cfb8e76a6 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stdout] 4: 0x563b3f153b2b - std::panicking::default_hook::{{closure}}::h96cbf7b454e3f557 [INFO] [stdout] at src/libstd/panicking.rs:200 [INFO] [stdout] 5: 0x563b3f15379c - std::panicking::default_hook::h95a8f00337383d83 [INFO] [stdout] at src/libstd/panicking.rs:211 [INFO] [stdout] 6: 0x563b3f15429d - std::panicking::rust_panic_with_hook::h92f98b46e22f14ed [INFO] [stdout] at src/libstd/panicking.rs:477 [INFO] [stdout] 7: 0x563b3f153e22 - std::panicking::continue_panic_fmt::h25abfbb4e5b7043a [INFO] [stdout] at src/libstd/panicking.rs:384 [INFO] [stdout] 8: 0x563b3f153d06 - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:311 [INFO] [stdout] 9: 0x563b3f169f2d - core::panicking::panic_fmt::h7e9f94035af782b3 [INFO] [stdout] at src/libcore/panicking.rs:85 [INFO] [stdout] 10: 0x563b3f16a027 - core::result::unwrap_failed::hf7591c1dd9412006 [INFO] [stdout] at src/libcore/result.rs:1084 [INFO] [stdout] 11: 0x563b3f105790 - core::result::Result::unwrap::hc7caedbc213ca01d [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libcore/result.rs:852 [INFO] [stdout] 12: 0x563b3f0ff201 - variable_size_byte_writer::tests::test_drop::h95efd31b54a9af2f [INFO] [stdout] at src/lib.rs:562 [INFO] [stdout] 13: 0x563b3f0ff1aa - variable_size_byte_writer::tests::test_drop::{{closure}}::h7fabbd6153fb0219 [INFO] [stdout] at src/lib.rs:559 [INFO] [stdout] 14: 0x563b3f10990e - core::ops::function::FnOnce::call_once::he66e209ab4fb8f00 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libcore/ops/function.rs:235 [INFO] [stdout] 15: 0x563b3f11680f - as core::ops::function::FnOnce>::call_once::hac0fbe2754f8bd24 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/liballoc/boxed.rs:787 [INFO] [stdout] 16: 0x563b3f156aba - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:80 [INFO] [stdout] 17: 0x563b3f130dfe - std::panicking::try::h9d6938917cc05e3f [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panicking.rs:275 [INFO] [stdout] 18: 0x563b3f130dfe - std::panic::catch_unwind::h5be70fd1d69515b0 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panic.rs:394 [INFO] [stdout] 19: 0x563b3f130dfe - test::run_test::run_test_inner::{{closure}}::h056f206eafd8ff6e [INFO] [stdout] at src/libtest/lib.rs:1408 [INFO] [stdout] 20: 0x563b3f10c235 - std::sys_common::backtrace::__rust_begin_short_backtrace::h859abbc742a34b19 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/sys_common/backtrace.rs:77 [INFO] [stdout] 21: 0x563b3f110375 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hf8192ec938c43694 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/thread/mod.rs:470 [INFO] [stdout] 22: 0x563b3f110375 - as core::ops::function::FnOnce<()>>::call_once::hae7b2431555cb4db [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panic.rs:315 [INFO] [stdout] 23: 0x563b3f110375 - std::panicking::try::do_call::h6da7ecd0783259d7 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panicking.rs:296 [INFO] [stdout] 24: 0x563b3f156aba - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:80 [INFO] [stdout] 25: 0x563b3f110952 - std::panicking::try::h3c1c35414c2c78f1 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panicking.rs:275 [INFO] [stdout] 26: 0x563b3f110952 - std::panic::catch_unwind::ha5cfb2018fda983e [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panic.rs:394 [INFO] [stdout] 27: 0x563b3f110952 - std::thread::Builder::spawn_unchecked::{{closure}}::hc7620e41f0938c09 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/thread/mod.rs:469 [INFO] [stdout] 28: 0x563b3f110952 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h1b3b20eeb6ea6ddd [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libcore/ops/function.rs:235 [INFO] [stdout] 29: 0x563b3f1497ef - as core::ops::function::FnOnce>::call_once::h2877b2aefb0fd627 [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/liballoc/boxed.rs:787 [INFO] [stdout] 30: 0x563b3f1561f0 - as core::ops::function::FnOnce>::call_once::h13f473dbcdaa0fef [INFO] [stdout] at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/liballoc/boxed.rs:787 [INFO] [stdout] 31: 0x563b3f1561f0 - std::sys_common::thread::start_thread::h562a7c4953cb1d31 [INFO] [stdout] at src/libstd/sys_common/thread.rs:13 [INFO] [stdout] 32: 0x563b3f1561f0 - std::sys::unix::thread::Thread::new::thread_start::h382c6ae14181d163 [INFO] [stdout] at src/libstd/sys/unix/thread.rs:79 [INFO] [stdout] 33: 0x7f658e1c66db - start_thread [INFO] [stdout] 34: 0x7f658dcd788f - __clone [INFO] [stdout] 35: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] tests::test_drop [INFO] [stdout] [INFO] [stdout] test result: FAILED. 16 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" "b6b94435d3017a21117df7d4701722a364517f98f7bc632d154093c4158d21ab"` [INFO] running `"docker" "rm" "-f" "b6b94435d3017a21117df7d4701722a364517f98f7bc632d154093c4158d21ab"` [INFO] [stdout] b6b94435d3017a21117df7d4701722a364517f98f7bc632d154093c4158d21ab