[INFO] fetching crate fut 0.1.3... [INFO] extracting crate fut 0.1.3 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/fut/0.1.3 [INFO] extracting crate fut 0.1.3 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/fut/0.1.3 [INFO] validating manifest of fut-0.1.3 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 fut-0.1.3 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 fut-0.1.3 [INFO] finished frobbing fut-0.1.3 [INFO] frobbed toml for fut-0.1.3 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/fut/0.1.3/Cargo.toml [INFO] started frobbing fut-0.1.3 [INFO] finished frobbing fut-0.1.3 [INFO] frobbed toml for fut-0.1.3 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/fut/0.1.3/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] 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 fut-0.1.3 against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-3/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/fut/0.1.3:/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] e57cd5b8cbe53e658c272173a84be5ea85ab0f632c6f7d5e22dc693f3ac7d62c [INFO] running `"docker" "start" "-a" "e57cd5b8cbe53e658c272173a84be5ea85ab0f632c6f7d5e22dc693f3ac7d62c"` [INFO] [stderr] Compiling fut v0.1.3 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.37s [INFO] running `"docker" "inspect" "e57cd5b8cbe53e658c272173a84be5ea85ab0f632c6f7d5e22dc693f3ac7d62c"` [INFO] running `"docker" "rm" "-f" "e57cd5b8cbe53e658c272173a84be5ea85ab0f632c6f7d5e22dc693f3ac7d62c"` [INFO] [stdout] e57cd5b8cbe53e658c272173a84be5ea85ab0f632c6f7d5e22dc693f3ac7d62c [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-3/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/fut/0.1.3:/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] 37af365acdec733c9d96f67b5a53bcdb5455c3e67259f723e9e1881c93b5ffeb [INFO] running `"docker" "start" "-a" "37af365acdec733c9d96f67b5a53bcdb5455c3e67259f723e9e1881c93b5ffeb"` [INFO] [stderr] Compiling fut v0.1.3 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.55s [INFO] running `"docker" "inspect" "37af365acdec733c9d96f67b5a53bcdb5455c3e67259f723e9e1881c93b5ffeb"` [INFO] running `"docker" "rm" "-f" "37af365acdec733c9d96f67b5a53bcdb5455c3e67259f723e9e1881c93b5ffeb"` [INFO] [stdout] 37af365acdec733c9d96f67b5a53bcdb5455c3e67259f723e9e1881c93b5ffeb [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-3/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/fut/0.1.3:/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] 3f17deac3a5c94bf8e0bc3699e16065003c8f7fdf3c44208b59d27ceea023605 [INFO] running `"docker" "start" "-a" "3f17deac3a5c94bf8e0bc3699e16065003c8f7fdf3c44208b59d27ceea023605"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/crater/target/debug/deps/fut-5d351a379f08078f [INFO] [stdout] [INFO] [stdout] running 7 tests [INFO] [stdout] test tests::it_opens_file_as_a_string ... ok [INFO] [stdout] test tests::it_can_create_a_duplicate_entry_if_id_not_found_and_find_duplicates ... ok [INFO] [stdout] test tests::it_replaces_string_contents ... ok [INFO] [stdout] test tests::it_stacks_lines_into_vec ... ok [INFO] [stdout] test tests::it_stacks_chars_into_vec ... ok [INFO] [stdout] test tests::it_can_store_into_map ... ok [INFO] [stdout] test tests::it_reads_and_writes_a_large_file ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- tests::it_reads_and_writes_a_large_file stdout ---- [INFO] [stdout] thread 'tests::it_reads_and_writes_a_large_file' panicked at 'file not found: Os { code: 30, kind: Other, message: "Read-only file system" }', src/libcore/result.rs:999:5 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x562c9f206f1b - 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: 0x562c9f206f1b - 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: 0x562c9f206f1b - std::sys_common::backtrace::_print::hd27175ce39811176 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stdout] 3: 0x562c9f206f1b - std::sys_common::backtrace::print::h117e2eebf9a1e122 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stdout] 4: 0x562c9f206f1b - std::panicking::default_hook::{{closure}}::h6369b988ee675335 [INFO] [stdout] at src/libstd/panicking.rs:198 [INFO] [stdout] 5: 0x562c9f206baf - std::panicking::default_hook::hfaefd2bea4c25f9e [INFO] [stdout] at src/libstd/panicking.rs:209 [INFO] [stdout] 6: 0x562c9f207690 - std::panicking::rust_panic_with_hook::h02c52718165ccced [INFO] [stdout] at src/libstd/panicking.rs:475 [INFO] [stdout] 7: 0x562c9f207212 - std::panicking::continue_panic_fmt::h9e135674c1df51b4 [INFO] [stdout] at src/libstd/panicking.rs:382 [INFO] [stdout] 8: 0x562c9f2070f6 - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:309 [INFO] [stdout] 9: 0x562c9f21d68d - core::panicking::panic_fmt::h58c956553ac8538f [INFO] [stdout] at src/libcore/panicking.rs:85 [INFO] [stdout] 10: 0x562c9f1af66f - core::result::unwrap_failed::hd9b5ac581306ef78 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libcore/macros.rs:18 [INFO] [stdout] 11: 0x562c9f1b07c0 - core::result::Result::expect::h95c36c1457762e3c [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libcore/result.rs:827 [INFO] [stdout] 12: 0x562c9f1ad7ae - fut::write_file::h49f18f39c88864ed [INFO] [stdout] at src/lib.rs:44 [INFO] [stdout] 13: 0x562c9f1b6884 - fut::tests::it_reads_and_writes_a_large_file::h91f665d5b15d64f6 [INFO] [stdout] at src/lib.rs:191 [INFO] [stdout] 14: 0x562c9f1b681a - fut::tests::it_reads_and_writes_a_large_file::{{closure}}::hdcfc4efc53d3c0b7 [INFO] [stdout] at src/lib.rs:188 [INFO] [stdout] 15: 0x562c9f1a3e0e - core::ops::function::FnOnce::call_once::h8f5bffe96359ae67 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libcore/ops/function.rs:231 [INFO] [stdout] 16: 0x562c9f1c993f - as core::ops::function::FnOnce>::call_once::h051e7835d417eabd [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/liballoc/boxed.rs:746 [INFO] [stdout] 17: 0x562c9f20a21a - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:85 [INFO] [stdout] 18: 0x562c9f1e4318 - std::panicking::try::h2a4c737ee7913c25 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panicking.rs:273 [INFO] [stdout] 19: 0x562c9f1e4318 - std::panic::catch_unwind::hb4a850da3c0f461d [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panic.rs:388 [INFO] [stdout] 20: 0x562c9f1e4318 - test::run_test::run_test_inner::{{closure}}::hf1081f8a70de250d [INFO] [stdout] at src/libtest/lib.rs:1466 [INFO] [stdout] 21: 0x562c9f1beeb5 - std::sys_common::backtrace::__rust_begin_short_backtrace::h342b596609fb99e3 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/sys_common/backtrace.rs:77 [INFO] [stdout] 22: 0x562c9f1c2e45 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h513520560543c60c [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/thread/mod.rs:470 [INFO] [stdout] 23: 0x562c9f1c2e45 - as core::ops::function::FnOnce<()>>::call_once::ha4e1c61c6177bb54 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panic.rs:309 [INFO] [stdout] 24: 0x562c9f1c2e45 - std::panicking::try::do_call::h0eb4a0e045c14646 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panicking.rs:294 [INFO] [stdout] 25: 0x562c9f20a21a - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:85 [INFO] [stdout] 26: 0x562c9f1c3462 - std::panicking::try::h20774757cea1a66c [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panicking.rs:273 [INFO] [stdout] 27: 0x562c9f1c3462 - std::panic::catch_unwind::h38e40a373c8b5452 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panic.rs:388 [INFO] [stdout] 28: 0x562c9f1c3462 - std::thread::Builder::spawn_unchecked::{{closure}}::h9bfd91224a2fd035 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/thread/mod.rs:469 [INFO] [stdout] 29: 0x562c9f1c3462 - core::ops::function::FnOnce::call_once{{vtable.shim}}::ha2d3b3105bb1d7d1 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libcore/ops/function.rs:231 [INFO] [stdout] 30: 0x562c9f1fcf3f - as core::ops::function::FnOnce>::call_once::hc6099fbe1f2e9038 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/liballoc/boxed.rs:746 [INFO] [stdout] 31: 0x562c9f209960 - as core::ops::function::FnOnce>::call_once::h1b61db05dcd8ce54 [INFO] [stdout] at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/liballoc/boxed.rs:746 [INFO] [stdout] 32: 0x562c9f209960 - std::sys_common::thread::start_thread::hd3ed9053e9fea488 [INFO] [stdout] at src/libstd/sys_common/thread.rs:13 [INFO] [stdout] 33: 0x562c9f209960 - std::sys::unix::thread::Thread::new::thread_start::hc17e4e4c7ed2fc8f [INFO] [stdout] at src/libstd/sys/unix/thread.rs:79 [INFO] [stdout] 34: 0x7f62335754a4 - start_thread [INFO] [stdout] 35: 0x7f62330a0d0f - __clone [INFO] [stdout] 36: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] tests::it_reads_and_writes_a_large_file [INFO] [stdout] [INFO] [stdout] test result: FAILED. 6 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" "3f17deac3a5c94bf8e0bc3699e16065003c8f7fdf3c44208b59d27ceea023605"` [INFO] running `"docker" "rm" "-f" "3f17deac3a5c94bf8e0bc3699e16065003c8f7fdf3c44208b59d27ceea023605"` [INFO] [stdout] 3f17deac3a5c94bf8e0bc3699e16065003c8f7fdf3c44208b59d27ceea023605