[INFO] fetching crate fut 0.1.3... [INFO] testing fut-0.1.3 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031 [INFO] extracting crate fut 0.1.3 into /workspace/builds/worker-89/source [INFO] validating manifest of crates.io crate fut 0.1.3 on toolchain 722e1797249a965b6335aebd65d777f917e498f1 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate fut 0.1.3 [INFO] finished tweaking crates.io crate fut 0.1.3 [INFO] tweaked toml for crates.io crate fut 0.1.3 written to /workspace/builds/worker-89/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 51cb9f0d6aefa52efaf9436e5156b4d3887e414eae86f35f1bedebdf494525a5 [INFO] running `Command { std: "docker" "start" "-a" "51cb9f0d6aefa52efaf9436e5156b4d3887e414eae86f35f1bedebdf494525a5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "51cb9f0d6aefa52efaf9436e5156b4d3887e414eae86f35f1bedebdf494525a5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "51cb9f0d6aefa52efaf9436e5156b4d3887e414eae86f35f1bedebdf494525a5", kill_on_drop: false }` [INFO] [stdout] 51cb9f0d6aefa52efaf9436e5156b4d3887e414eae86f35f1bedebdf494525a5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 578e1682bfdb1282e3f998599d4b1a2fb880bd28f0a88d9a505adf836eeaad73 [INFO] running `Command { std: "docker" "start" "-a" "578e1682bfdb1282e3f998599d4b1a2fb880bd28f0a88d9a505adf836eeaad73", kill_on_drop: false }` [INFO] [stderr] Compiling fut v0.1.3 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.35s [INFO] running `Command { std: "docker" "inspect" "578e1682bfdb1282e3f998599d4b1a2fb880bd28f0a88d9a505adf836eeaad73", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "578e1682bfdb1282e3f998599d4b1a2fb880bd28f0a88d9a505adf836eeaad73", kill_on_drop: false }` [INFO] [stdout] 578e1682bfdb1282e3f998599d4b1a2fb880bd28f0a88d9a505adf836eeaad73 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0d69c6c9c6b630b32ef7c527ccc2fb914aa696b7f580526b0536d5b46412f91a [INFO] running `Command { std: "docker" "start" "-a" "0d69c6c9c6b630b32ef7c527ccc2fb914aa696b7f580526b0536d5b46412f91a", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling fut v0.1.3 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.49s [INFO] running `Command { std: "docker" "inspect" "0d69c6c9c6b630b32ef7c527ccc2fb914aa696b7f580526b0536d5b46412f91a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0d69c6c9c6b630b32ef7c527ccc2fb914aa696b7f580526b0536d5b46412f91a", kill_on_drop: false }` [INFO] [stdout] 0d69c6c9c6b630b32ef7c527ccc2fb914aa696b7f580526b0536d5b46412f91a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] fff16f25fa0b397a13ff7bbe9f1f7d52e3cbfb662a013d4664171311e920f478 [INFO] running `Command { std: "docker" "start" "-a" "fff16f25fa0b397a13ff7bbe9f1f7d52e3cbfb662a013d4664171311e920f478", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/fut-3390fce6bea148fb) [INFO] [stdout] [INFO] [stdout] running 7 tests [INFO] [stdout] test tests::it_can_store_into_map ... ok [INFO] [stdout] test tests::it_can_create_a_duplicate_entry_if_id_not_found_and_find_duplicates ... ok [INFO] [stdout] test tests::it_opens_file_as_a_string ... ok [INFO] [stdout] test tests::it_replaces_string_contents ... ok [INFO] [stdout] test tests::it_stacks_chars_into_vec ... ok [INFO] [stdout] test tests::it_stacks_lines_into_vec ... 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: ReadOnlyFilesystem, message: "Read-only file system" }', src/lib.rs:44:41 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55d5d98da1ac - std::backtrace_rs::backtrace::libunwind::trace::h7630ba4cba718aa0 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x55d5d98da1ac - std::backtrace_rs::backtrace::trace_unsynchronized::he7498e79c157f5ac [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55d5d98da1ac - std::sys_common::backtrace::_print_fmt::hdaebadaee17bca49 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x55d5d98da1ac - ::fmt::h82b0e3aaf8a96140 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stdout] 4: 0x55d5d98fcc0c - core::fmt::write::h72801a82c94e6ff1 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/fmt/mod.rs:1149:17 [INFO] [stdout] 5: 0x55d5d98d60e5 - std::io::Write::write_fmt::h21d7683cabdb4c35 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/io/mod.rs:1697:15 [INFO] [stdout] 6: 0x55d5d98dbc00 - std::sys_common::backtrace::_print::h1c9a1d19c48821c1 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stdout] 7: 0x55d5d98dbc00 - std::sys_common::backtrace::print::h7ce8802039fa9d0e [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stdout] 8: 0x55d5d98dbc00 - std::panicking::default_hook::{{closure}}::hb2a74a8c1499c326 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:211:50 [INFO] [stdout] 9: 0x55d5d98db7e6 - std::panicking::default_hook::hf4f180b00076f2b2 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:225:9 [INFO] [stdout] 10: 0x55d5d98dc2b4 - std::panicking::rust_panic_with_hook::he85ce8435493b711 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:606:17 [INFO] [stdout] 11: 0x55d5d98dbd90 - std::panicking::begin_panic_handler::{{closure}}::h31e15f69e6235bd2 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:502:13 [INFO] [stdout] 12: 0x55d5d98da664 - std::sys_common::backtrace::__rust_end_short_backtrace::hfce2fadb61aaa3ae [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:139:18 [INFO] [stdout] 13: 0x55d5d98dbcf9 - rust_begin_unwind [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:498:5 [INFO] [stdout] 14: 0x55d5d986a871 - core::panicking::panic_fmt::h7b8580d81fcbbacd [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/panicking.rs:107:14 [INFO] [stdout] 15: 0x55d5d986a963 - core::result::unwrap_failed::h885d3f7beb571353 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/result.rs:1613:5 [INFO] [stdout] 16: 0x55d5d98742ff - core::result::Result::expect::h49a80127a95382b3 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/result.rs:1255:23 [INFO] [stdout] 17: 0x55d5d9880a2f - fut::write_file::hb79948dcae5d3dbd [INFO] [stdout] at /opt/rustwide/workdir/src/lib.rs:44:20 [INFO] [stdout] 18: 0x55d5d9876ece - fut::tests::it_reads_and_writes_a_large_file::h628da8321a0ef1c3 [INFO] [stdout] at /opt/rustwide/workdir/src/lib.rs:191:9 [INFO] [stdout] 19: 0x55d5d9876e6a - fut::tests::it_reads_and_writes_a_large_file::{{closure}}::hb219eab348df4759 [INFO] [stdout] at /opt/rustwide/workdir/src/lib.rs:188:5 [INFO] [stdout] 20: 0x55d5d987769e - core::ops::function::FnOnce::call_once::hdcba40848b1fdf65 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 21: 0x55d5d98b79c3 - core::ops::function::FnOnce::call_once::h449577f1c5b077cb [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 22: 0x55d5d98b79c3 - test::__rust_begin_short_backtrace::h8c2a0a5090591869 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/test/src/lib.rs:585:5 [INFO] [stdout] 23: 0x55d5d98b6557 - as core::ops::function::FnOnce>::call_once::hea00a22128a38543 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/alloc/src/boxed.rs:1694:9 [INFO] [stdout] 24: 0x55d5d98b6557 - as core::ops::function::FnOnce<()>>::call_once::he10b35c3c50d78a0 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 25: 0x55d5d98b6557 - std::panicking::try::do_call::hc868e78bbc5af2ab [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:406:40 [INFO] [stdout] 26: 0x55d5d98b6557 - std::panicking::try::he468aede74df1b04 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:370:19 [INFO] [stdout] 27: 0x55d5d98b6557 - std::panic::catch_unwind::hce3c9152e1cf772d [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panic.rs:133:14 [INFO] [stdout] 28: 0x55d5d98b6557 - test::run_test_in_process::h9c4ab8162080cf8c [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/test/src/lib.rs:608:18 [INFO] [stdout] 29: 0x55d5d98b6557 - test::run_test::run_test_inner::{{closure}}::he9483433cef16afe [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/test/src/lib.rs:500:39 [INFO] [stdout] 30: 0x55d5d988389e - test::run_test::run_test_inner::{{closure}}::h479f1f872a5501ea [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/test/src/lib.rs:527:37 [INFO] [stdout] 31: 0x55d5d988389e - std::sys_common::backtrace::__rust_begin_short_backtrace::h0f1e9b1f279687bc [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:123:18 [INFO] [stdout] 32: 0x55d5d98886c8 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::he5560613c5f5cb83 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/thread/mod.rs:484:17 [INFO] [stdout] 33: 0x55d5d98886c8 - as core::ops::function::FnOnce<()>>::call_once::h8190a68cb05ab92f [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 34: 0x55d5d98886c8 - std::panicking::try::do_call::h6ae22f5ac22596e4 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:406:40 [INFO] [stdout] 35: 0x55d5d98886c8 - std::panicking::try::h2381c25487d6a7c2 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:370:19 [INFO] [stdout] 36: 0x55d5d98886c8 - std::panic::catch_unwind::hfe902f4d5c9d7b6d [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panic.rs:133:14 [INFO] [stdout] 37: 0x55d5d98886c8 - std::thread::Builder::spawn_unchecked::{{closure}}::h547fad40771a584e [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/thread/mod.rs:483:30 [INFO] [stdout] 38: 0x55d5d98886c8 - core::ops::function::FnOnce::call_once{{vtable.shim}}::he8602a9971738410 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 39: 0x55d5d98e0d43 - as core::ops::function::FnOnce>::call_once::he162a5c338a10a39 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/alloc/src/boxed.rs:1694:9 [INFO] [stdout] 40: 0x55d5d98e0d43 - as core::ops::function::FnOnce>::call_once::hb27497b21740dd97 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/alloc/src/boxed.rs:1694:9 [INFO] [stdout] 41: 0x55d5d98e0d43 - std::sys::unix::thread::Thread::new::thread_start::he467e990e49c5136 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys/unix/thread.rs:106:17 [INFO] [stdout] 42: 0x7fa8b06c7609 - start_thread [INFO] [stdout] 43: 0x7fa8b0499293 - clone [INFO] [stdout] 44: 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; finished in 0.08s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--lib' [INFO] running `Command { std: "docker" "inspect" "fff16f25fa0b397a13ff7bbe9f1f7d52e3cbfb662a013d4664171311e920f478", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fff16f25fa0b397a13ff7bbe9f1f7d52e3cbfb662a013d4664171311e920f478", kill_on_drop: false }` [INFO] [stdout] fff16f25fa0b397a13ff7bbe9f1f7d52e3cbfb662a013d4664171311e920f478