[INFO] fetching crate greattraits 0.1.0...
[INFO] testing greattraits-0.1.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate greattraits 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate greattraits 0.1.0
[INFO] finished tweaking crates.io crate greattraits 0.1.0
[INFO] tweaked toml for crates.io crate greattraits 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate greattraits 0.1.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d2df718f04161c86f44db67783a26af9c2ad785ef2fdaf299f83c05a384ef5b3
[INFO] running `Command { std: "docker" "start" "-a" "d2df718f04161c86f44db67783a26af9c2ad785ef2fdaf299f83c05a384ef5b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2df718f04161c86f44db67783a26af9c2ad785ef2fdaf299f83c05a384ef5b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2df718f04161c86f44db67783a26af9c2ad785ef2fdaf299f83c05a384ef5b3", kill_on_drop: false }`
[INFO] [stdout] d2df718f04161c86f44db67783a26af9c2ad785ef2fdaf299f83c05a384ef5b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8239db8b0359e936c342d9e8ab72bacae9309dde5f06351a03cfe8d5ee603d6
[INFO] running `Command { std: "docker" "start" "-a" "b8239db8b0359e936c342d9e8ab72bacae9309dde5f06351a03cfe8d5ee603d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling greattraits v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "b8239db8b0359e936c342d9e8ab72bacae9309dde5f06351a03cfe8d5ee603d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8239db8b0359e936c342d9e8ab72bacae9309dde5f06351a03cfe8d5ee603d6", kill_on_drop: false }`
[INFO] [stdout] b8239db8b0359e936c342d9e8ab72bacae9309dde5f06351a03cfe8d5ee603d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 876369192b13d07f822617efbcf7c900d29ddf14754f6b0cd112e2712befab6f
[INFO] running `Command { std: "docker" "start" "-a" "876369192b13d07f822617efbcf7c900d29ddf14754f6b0cd112e2712befab6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling greattraits v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "876369192b13d07f822617efbcf7c900d29ddf14754f6b0cd112e2712befab6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "876369192b13d07f822617efbcf7c900d29ddf14754f6b0cd112e2712befab6f", kill_on_drop: false }`
[INFO] [stdout] 876369192b13d07f822617efbcf7c900d29ddf14754f6b0cd112e2712befab6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 44a8d1c9d9eaa461b2059dc4f83a2ccf7080d3593f41cf3ba8c318081a25708c
[INFO] running `Command { std: "docker" "start" "-a" "44a8d1c9d9eaa461b2059dc4f83a2ccf7080d3593f41cf3ba8c318081a25708c", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/greattraits-3499f7d9dc957448)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test::readfile ... ok
[INFO] [stdout] test test::create_delete_dir ... FAILED
[INFO] [stdout] test test::writefile ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test::create_delete_dir stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'test::create_delete_dir' (25) panicked at src/test.rs:25:15:
[INFO] [stdout] cannot mkdir!: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x576a381f72e2 - std::backtrace_rs::backtrace::libunwind::trace::h0fb8082ca5562a61
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x576a381f72e2 - std::backtrace_rs::backtrace::trace_unsynchronized::hfaa258994374a3cd
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x576a381f72e2 - std::sys::backtrace::_print_fmt::h11496fe34963a885
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x576a381f72e2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hff1a9408d012ee89
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x576a3821a77f - core::fmt::rt::Argument::fmt::hf11195b61445f5d1
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x576a3821a77f - core::fmt::write::h2f1fc679f228cc52
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x576a381e39c3 - std::io::default_write_fmt::h12bd533187bc883d
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x576a381e39c3 - std::io::Write::write_fmt::h926a1fdfdcb90065
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x576a381f7132 - std::sys::backtrace::BacktraceLock::print::h28bfdbcac6d3828b
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x576a381e222c - std::panicking::default_hook::{{closure}}::h1f968e3a24b0e3b4
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x576a381e20a9 - std::panicking::default_hook::h43da101644971931
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x576a3818ad1e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h4b2012949041da5d
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x576a3818ad1e - test::test_main_with_exit_callback::{{closure}}::h53c9154cdc260357
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x576a381e2833 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h911f2e3e7e84b764
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x576a381e2833 - std::panicking::panic_with_hook::hb4e916c3e65eccec
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x576a381f6cba - std::panicking::panic_handler::{{closure}}::hbff715d0475cf1bd
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x576a381f6c19 - std::sys::backtrace::__rust_end_short_backtrace::hd6f43484e45a4955
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x576a381e2d9d - __rustc[b29d3319de9a3146]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x576a38220a60 - core::panicking::panic_fmt::h5f8d281875be5ff1
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x576a38221826 - core::result::unwrap_failed::hbb243a6a8b53218d
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/result.rs:1852:5
[INFO] [stdout]   20:     0x576a38181fbc - core::result::Result<T,E>::expect::h152fdd0e8e3e6863
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/result.rs:1175:23
[INFO] [stdout]   21:     0x576a38180d30 - greattraits::test::create_delete_dir::h3f6a9f91b59c316b
[INFO] [stdout]                                at /opt/rustwide/workdir/src/test.rs:25:15
[INFO] [stdout]   22:     0x576a381811a7 - greattraits::test::create_delete_dir::{{closure}}::hb64ec0d0d8a953d9
[INFO] [stdout]                                at /opt/rustwide/workdir/src/test.rs:23:23
[INFO] [stdout]   23:     0x576a381821a6 - core::ops::function::FnOnce::call_once::h0a12b99d297b18ca
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   24:     0x576a3819025b - core::ops::function::FnOnce::call_once::haf4e03bb51ef1351
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   25:     0x576a3819025b - test::__rust_begin_short_backtrace::h50f5566ee84f2f21
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x576a38193455 - test::run_test_in_process::{{closure}}::heb3733b71d876eca
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x576a38193455 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::he2fe41e1b161faa9
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x576a38193455 - std::panicking::catch_unwind::do_call::h00aa383d8fd97a09
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x576a38193455 - std::panicking::catch_unwind::he482e1914bc21641
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x576a38193455 - std::panic::catch_unwind::h86ac9705098f4f22
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x576a38193455 - test::run_test_in_process::h636a992821e3c6aa
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x576a38193455 - test::run_test::{{closure}}::he454cc9a192df79f
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x576a381b8e04 - test::run_test::{{closure}}::haec47455908dff86
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x576a381b8e04 - std::sys::backtrace::__rust_begin_short_backtrace::h230785972524cdc1
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x576a3819fa1a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::haa5a562db4cde838
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x576a3819fa1a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h89254f37a55d0a87
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x576a3819fa1a - std::panicking::catch_unwind::do_call::h499f5a462f019d9d
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x576a3819fa1a - std::panicking::catch_unwind::h6736fbbb1a264383
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x576a3819fa1a - std::panic::catch_unwind::h49ea7bdd1cbee572
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x576a3819fa1a - std::thread::Builder::spawn_unchecked_::{{closure}}::h653dfa62acf32f5a
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x576a3819fa1a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h82582a626a045a45
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   42:     0x576a381ccc2f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h4ab26c07513156cc
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   43:     0x576a381ccc2f - std::sys::pal::unix::thread::Thread::new::thread_start::h66ff1bba185a50cf
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/pal/unix/thread.rs:107:17
[INFO] [stdout]   44:     0x7d396c542aa4 - <unknown>
[INFO] [stdout]   45:     0x7d396c5cfa34 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- test::writefile stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'test::writefile' (27) panicked at src/test.rs:8:28:
[INFO] [stdout] cannot create file: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x576a381f72e2 - std::backtrace_rs::backtrace::libunwind::trace::h0fb8082ca5562a61
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x576a381f72e2 - std::backtrace_rs::backtrace::trace_unsynchronized::hfaa258994374a3cd
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x576a381f72e2 - std::sys::backtrace::_print_fmt::h11496fe34963a885
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x576a381f72e2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hff1a9408d012ee89
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x576a3821a77f - core::fmt::rt::Argument::fmt::hf11195b61445f5d1
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x576a3821a77f - core::fmt::write::h2f1fc679f228cc52
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x576a381e39c3 - std::io::default_write_fmt::h12bd533187bc883d
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x576a381e39c3 - std::io::Write::write_fmt::h926a1fdfdcb90065
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x576a381f7132 - std::sys::backtrace::BacktraceLock::print::h28bfdbcac6d3828b
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x576a381e222c - std::panicking::default_hook::{{closure}}::h1f968e3a24b0e3b4
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x576a381e20a9 - std::panicking::default_hook::h43da101644971931
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x576a3818ad1e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h4b2012949041da5d
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x576a3818ad1e - test::test_main_with_exit_callback::{{closure}}::h53c9154cdc260357
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x576a381e2833 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h911f2e3e7e84b764
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x576a381e2833 - std::panicking::panic_with_hook::hb4e916c3e65eccec
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x576a381f6cba - std::panicking::panic_handler::{{closure}}::hbff715d0475cf1bd
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x576a381f6c19 - std::sys::backtrace::__rust_end_short_backtrace::hd6f43484e45a4955
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x576a381e2d9d - __rustc[b29d3319de9a3146]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x576a38220a60 - core::panicking::panic_fmt::h5f8d281875be5ff1
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x576a38221826 - core::result::unwrap_failed::hbb243a6a8b53218d
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/result.rs:1852:5
[INFO] [stdout]   20:     0x576a38181e6e - core::result::Result<T,E>::expect::hdd368dea737dedd4
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/result.rs:1175:23
[INFO] [stdout]   21:     0x576a38181224 - greattraits::test::writefile::hd035a71022c4fea4
[INFO] [stdout]                                at /opt/rustwide/workdir/src/test.rs:8:28
[INFO] [stdout]   22:     0x576a38180cb7 - greattraits::test::writefile::{{closure}}::hfdc090dc5a0c4169
[INFO] [stdout]                                at /opt/rustwide/workdir/src/test.rs:6:15
[INFO] [stdout]   23:     0x576a38182376 - core::ops::function::FnOnce::call_once::h03959b5d6089c29e
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   24:     0x576a3819025b - core::ops::function::FnOnce::call_once::haf4e03bb51ef1351
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   25:     0x576a3819025b - test::__rust_begin_short_backtrace::h50f5566ee84f2f21
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x576a38193455 - test::run_test_in_process::{{closure}}::heb3733b71d876eca
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x576a38193455 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::he2fe41e1b161faa9
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x576a38193455 - std::panicking::catch_unwind::do_call::h00aa383d8fd97a09
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x576a38193455 - std::panicking::catch_unwind::he482e1914bc21641
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x576a38193455 - std::panic::catch_unwind::h86ac9705098f4f22
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x576a38193455 - test::run_test_in_process::h636a992821e3c6aa
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x576a38193455 - test::run_test::{{closure}}::he454cc9a192df79f
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x576a381b8e04 - test::run_test::{{closure}}::haec47455908dff86
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x576a381b8e04 - std::sys::backtrace::__rust_begin_short_backtrace::h230785972524cdc1
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x576a3819fa1a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::haa5a562db4cde838
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x576a3819fa1a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h89254f37a55d0a87
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x576a3819fa1a - std::panicking::catch_unwind::do_call::h499f5a462f019d9d
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x576a3819fa1a - std::panicking::catch_unwind::h6736fbbb1a264383
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x576a3819fa1a - std::panic::catch_unwind::h49ea7bdd1cbee572
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x576a3819fa1a - std::thread::Builder::spawn_unchecked_::{{closure}}::h653dfa62acf32f5a
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x576a3819fa1a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h82582a626a045a45
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   42:     0x576a381ccc2f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h4ab26c07513156cc
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   43:     0x576a381ccc2f - std::sys::pal::unix::thread::Thread::new::thread_start::h66ff1bba185a50cf
[INFO] [stdout]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/pal/unix/thread.rs:107:17
[INFO] [stdout]   44:     0x7d396c542aa4 - <unknown>
[INFO] [stdout]   45:     0x7d396c5cfa34 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test::create_delete_dir
[INFO] [stdout]     test::writefile
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "44a8d1c9d9eaa461b2059dc4f83a2ccf7080d3593f41cf3ba8c318081a25708c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44a8d1c9d9eaa461b2059dc4f83a2ccf7080d3593f41cf3ba8c318081a25708c", kill_on_drop: false }`
[INFO] [stdout] 44a8d1c9d9eaa461b2059dc4f83a2ccf7080d3593f41cf3ba8c318081a25708c