[INFO] fetching crate btrfsutil-fake 0.2.0-8324fe2...
[INFO] testing btrfsutil-fake-0.2.0-8324fe2 against beta-2024-12-08 for beta-1.84.0-4-retry
[INFO] extracting crate btrfsutil-fake 0.2.0-8324fe2 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate btrfsutil-fake 0.2.0-8324fe2 on toolchain beta-2024-12-08
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-12-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate btrfsutil-fake 0.2.0-8324fe2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate btrfsutil-fake 0.2.0-8324fe2
[INFO] tweaked toml for crates.io crate btrfsutil-fake 0.2.0-8324fe2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate btrfsutil-fake 0.2.0-8324fe2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-12-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80b8ae3cf74c6850853ebf3b06912c13a72a4765187c7665541a6cbc2ffea31c
[INFO] running `Command { std: "docker" "start" "-a" "80b8ae3cf74c6850853ebf3b06912c13a72a4765187c7665541a6cbc2ffea31c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80b8ae3cf74c6850853ebf3b06912c13a72a4765187c7665541a6cbc2ffea31c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80b8ae3cf74c6850853ebf3b06912c13a72a4765187c7665541a6cbc2ffea31c", kill_on_drop: false }`
[INFO] [stdout] 80b8ae3cf74c6850853ebf3b06912c13a72a4765187c7665541a6cbc2ffea31c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cf3e564f0498428108312b09d7706357b33ca1798c759f95c613b305c08e99b
[INFO] running `Command { std: "docker" "start" "-a" "7cf3e564f0498428108312b09d7706357b33ca1798c759f95c613b305c08e99b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling rustix v0.38.15
[INFO] [stderr]    Compiling prettyplease v0.2.15
[INFO] [stderr]    Compiling bitflags v2.4.0
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling linux-raw-sys v0.4.8
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling regex-syntax v0.7.5
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling home v0.5.5
[INFO] [stderr]    Compiling bindgen v0.66.1
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling shlex v1.2.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling thiserror v1.0.49
[INFO] [stderr]    Compiling iana-time-zone v0.1.57
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling clang-sys v1.6.1
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling chrono v0.4.31
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling regex-automata v0.3.9
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling thiserror-impl v1.0.49
[INFO] [stderr]    Compiling regex v1.9.6
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling btrfsutil-sys v1.3.0
[INFO] [stderr]    Compiling btrfsutil-fake v0.2.0-8324fe2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.26s
[INFO] running `Command { std: "docker" "inspect" "7cf3e564f0498428108312b09d7706357b33ca1798c759f95c613b305c08e99b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cf3e564f0498428108312b09d7706357b33ca1798c759f95c613b305c08e99b", kill_on_drop: false }`
[INFO] [stdout] 7cf3e564f0498428108312b09d7706357b33ca1798c759f95c613b305c08e99b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e1c638913e88648c81cef71fdb5cc1243c14b46d7181de188dc651c582abd00
[INFO] running `Command { std: "docker" "start" "-a" "5e1c638913e88648c81cef71fdb5cc1243c14b46d7181de188dc651c582abd00", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling bitflags v2.4.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.8
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling bindgen v0.58.1
[INFO] [stderr]    Compiling termcolor v1.3.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling rustix v0.38.15
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling fastrand v2.0.1
[INFO] [stderr]    Compiling aho-corasick v1.1.1
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling nom v5.1.3
[INFO] [stderr]    Compiling clang-sys v1.6.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling errno v0.2.8
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling regex-automata v0.3.9
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling tempfile v3.8.0
[INFO] [stderr]    Compiling libmount v0.1.15
[INFO] [stderr]    Compiling regex v1.9.6
[INFO] [stderr]    Compiling bindgen v0.66.1
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling loopdev v0.2.2
[INFO] [stderr]    Compiling btrfsutil-sys v1.3.0
[INFO] [stderr]    Compiling btrfsutil-fake v0.2.0-8324fe2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable `pub` item
[INFO] [stdout]   --> src/testing/mod.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use self::loopbacked::test_with_spec;
[INFO] [stdout]    | ---     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | help: consider restricting its visibility: `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: or consider exporting it for use by other crates
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:3:23
[INFO] [stdout]    |
[INFO] [stdout] 3  | #![deny(missing_docs, unreachable_pub)]
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable `pub` item
[INFO] [stdout]   --> src/testing/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use self::test_lib::btrfs_create_fs;
[INFO] [stdout]    | ---     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | help: consider restricting its visibility: `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: or consider exporting it for use by other crates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable `pub` item
[INFO] [stdout]   --> src/testing/loopbacked.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct LoopTestDev {
[INFO] [stdout]    | ---^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | help: consider restricting its visibility: `pub(super)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: or consider exporting it for use by other crates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable `pub` item
[INFO] [stdout]   --> src/testing/loopbacked.rs:79:1
[INFO] [stdout]    |
[INFO] [stdout] 79 |   pub fn test_with_spec<F>(count: u8, test: F)
[INFO] [stdout]    |   ^--
[INFO] [stdout]    |   |
[INFO] [stdout]    |  _help: consider restricting its visibility: `pub(crate)`
[INFO] [stdout]    | |
[INFO] [stdout] 80 | | where
[INFO] [stdout] 81 | |     F: Fn(&[&Path]) + panic::RefUnwindSafe,
[INFO] [stdout]    | |___________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: or consider exporting it for use by other crates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable `pub` item
[INFO] [stdout]   --> src/testing/test_lib.rs:40:1
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn btrfs_create_fs(devnode: &Path) -> io::Result<()> {
[INFO] [stdout]    | ---^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | help: consider restricting its visibility: `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: or consider exporting it for use by other crates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable `pub` item
[INFO] [stdout]   --> src/testing/test_lib.rs:66:1
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn clean_up() -> io::Result<()> {
[INFO] [stdout]    | ---^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | help: consider restricting its visibility: `pub(super)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: or consider exporting it for use by other crates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 26.71s
[INFO] running `Command { std: "docker" "inspect" "5e1c638913e88648c81cef71fdb5cc1243c14b46d7181de188dc651c582abd00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e1c638913e88648c81cef71fdb5cc1243c14b46d7181de188dc651c582abd00", kill_on_drop: false }`
[INFO] [stdout] 5e1c638913e88648c81cef71fdb5cc1243c14b46d7181de188dc651c582abd00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fab8b5ab6e993d08355528450e5f66beb4feb5915facda74246a5f604aed3c31
[INFO] running `Command { std: "docker" "start" "-a" "fab8b5ab6e993d08355528450e5f66beb4feb5915facda74246a5f604aed3c31", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable `pub` item
[INFO] [stderr]   --> src/testing/mod.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub use self::loopbacked::test_with_spec;
[INFO] [stderr]    | ---     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    | |
[INFO] [stderr]    | help: consider restricting its visibility: `pub(crate)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: or consider exporting it for use by other crates
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:3:23
[INFO] [stderr]    |
[INFO] [stderr] 3  | #![deny(missing_docs, unreachable_pub)]
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable `pub` item
[INFO] [stderr]   --> src/testing/mod.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub use self::test_lib::btrfs_create_fs;
[INFO] [stderr]    | ---     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    | |
[INFO] [stderr]    | help: consider restricting its visibility: `pub(crate)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: or consider exporting it for use by other crates
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable `pub` item
[INFO] [stderr]   --> src/testing/loopbacked.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct LoopTestDev {
[INFO] [stderr]    | ---^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    | |
[INFO] [stderr]    | help: consider restricting its visibility: `pub(super)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: or consider exporting it for use by other crates
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable `pub` item
[INFO] [stderr]   --> src/testing/loopbacked.rs:79:1
[INFO] [stderr]    |
[INFO] [stderr] 79 |   pub fn test_with_spec<F>(count: u8, test: F)
[INFO] [stderr]    |   ^--
[INFO] [stderr]    |   |
[INFO] [stderr]    |  _help: consider restricting its visibility: `pub(crate)`
[INFO] [stderr]    | |
[INFO] [stderr] 80 | | where
[INFO] [stderr] 81 | |     F: Fn(&[&Path]) + panic::RefUnwindSafe,
[INFO] [stderr]    | |___________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: or consider exporting it for use by other crates
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable `pub` item
[INFO] [stderr]   --> src/testing/test_lib.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub fn btrfs_create_fs(devnode: &Path) -> io::Result<()> {
[INFO] [stderr]    | ---^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    | |
[INFO] [stderr]    | help: consider restricting its visibility: `pub(crate)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: or consider exporting it for use by other crates
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable `pub` item
[INFO] [stderr]   --> src/testing/test_lib.rs:66:1
[INFO] [stderr]    |
[INFO] [stderr] 66 | pub fn clean_up() -> io::Result<()> {
[INFO] [stderr]    | ---^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    | |
[INFO] [stderr]    | help: consider restricting its visibility: `pub(super)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: or consider exporting it for use by other crates
[INFO] [stderr] 
[INFO] [stderr] warning: `btrfsutil-fake` (lib test) generated 6 warnings (run `cargo fix --lib -p btrfsutil-fake --tests` to apply 6 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/btrfsutil-7564f4dc3d3657c1)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test subvolume::subvol::test::loop_test_btrfs_subvol ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- subvolume::subvol::test::loop_test_btrfs_subvol stdout ----
[INFO] [stdout] thread 'subvolume::subvol::test::loop_test_btrfs_subvol' panicked at src/testing/loopbacked.rs:54:34:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5be0f07095ea - std::backtrace_rs::backtrace::libunwind::trace::h8810477743020387
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x5be0f07095ea - std::backtrace_rs::backtrace::trace_unsynchronized::h3aa55355dd6c54a6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5be0f07095ea - std::sys::backtrace::_print_fmt::h8588b0f62410823f
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5be0f07095ea - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h98c26ac25ffe89bb
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5be0f0730d83 - core::fmt::rt::Argument::fmt::hf95377f4aebd453b
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x5be0f0730d83 - core::fmt::write::h0dd5f6e2238c7982
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/mod.rs:1189:21
[INFO] [stdout]    6:     0x5be0f0706563 - std::io::Write::write_fmt::h03bb0ca26e6faf8c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/io/mod.rs:1884:15
[INFO] [stdout]    7:     0x5be0f0709432 - std::sys::backtrace::BacktraceLock::print::h5c19c1c038ee186d
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x5be0f070aaed - std::panicking::default_hook::{{closure}}::h77172f079a1fcb13
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:268:22
[INFO] [stdout]    9:     0x5be0f070a8f7 - std::panicking::default_hook::he5f8e3b203ccddba
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:292:9
[INFO] [stdout]   10:     0x5be0f068dba7 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7a3c7b4a1ae77f2f
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1986:9
[INFO] [stdout]   11:     0x5be0f068dba7 - test::test_main::{{closure}}::hf0d3b69ae9b353d1
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:134:21
[INFO] [stdout]   12:     0x5be0f070b198 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6332e82e7b189abd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1986:9
[INFO] [stdout]   13:     0x5be0f070b198 - std::panicking::rust_panic_with_hook::h53863d4e9018df39
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:809:13
[INFO] [stdout]   14:     0x5be0f070af5a - std::panicking::begin_panic_handler::{{closure}}::h67280e6fa0757873
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:674:13
[INFO] [stdout]   15:     0x5be0f0709ac9 - std::sys::backtrace::__rust_end_short_backtrace::h1dac3f54d6fbbeb2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   16:     0x5be0f070abec - rust_begin_unwind
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:665:5
[INFO] [stdout]   17:     0x5be0f0632c20 - core::panicking::panic_fmt::h6792bd1b2bf01041
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panicking.rs:76:14
[INFO] [stdout]   18:     0x5be0f0633066 - core::result::unwrap_failed::h05e0602ed34287c5
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/result.rs:1699:5
[INFO] [stdout]   19:     0x5be0f064b462 - core::result::Result<T,E>::unwrap::ha6ac0d8bc75c7821
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/result.rs:1104:23
[INFO] [stdout]   20:     0x5be0f064b462 - btrfsutil::testing::loopbacked::get_devices::hbf37e9cb855aaa6a
[INFO] [stdout]                                at /opt/rustwide/workdir/src/testing/loopbacked.rs:54:14
[INFO] [stdout]   21:     0x5be0f064bdf8 - btrfsutil::testing::loopbacked::test_with_spec::h4f225a3894487c0a
[INFO] [stdout]                                at /opt/rustwide/workdir/src/testing/loopbacked.rs:89:42
[INFO] [stdout]   22:     0x5be0f063d66b - btrfsutil::subvolume::subvol::test::loop_test_btrfs_subvol::h44d5fd0aec245389
[INFO] [stdout]                                at /opt/rustwide/workdir/src/subvolume/subvol.rs:518:9
[INFO] [stdout]   23:     0x5be0f063d647 - btrfsutil::subvolume::subvol::test::loop_test_btrfs_subvol::{{closure}}::h0d793b5c702f75dd
[INFO] [stdout]                                at /opt/rustwide/workdir/src/subvolume/subvol.rs:517:32
[INFO] [stdout]   24:     0x5be0f063efa6 - core::ops::function::FnOnce::call_once::hd5ef74e8865b4ab7
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5be0f06926cb - core::ops::function::FnOnce::call_once::h871bf86719ec9aa4
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x5be0f06926cb - test::__rust_begin_short_backtrace::h2167df1e2b7d76fd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:632:18
[INFO] [stdout]   27:     0x5be0f06920b8 - test::run_test_in_process::{{closure}}::h15d92f75a3adfb79
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:655:60
[INFO] [stdout]   28:     0x5be0f06920b8 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb6c8955835a8dbbb
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   29:     0x5be0f06920b8 - std::panicking::try::do_call::hc79d0fc888a0bd30
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40
[INFO] [stdout]   30:     0x5be0f06920b8 - std::panicking::try::hb8a7878e3a8589d6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19
[INFO] [stdout]   31:     0x5be0f06920b8 - std::panic::catch_unwind::hb8e4600ff0ff5cfa
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14
[INFO] [stdout]   32:     0x5be0f06920b8 - test::run_test_in_process::hc2900b0b18688dd6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:655:27
[INFO] [stdout]   33:     0x5be0f06920b8 - test::run_test::{{closure}}::hac2a9cb07be3d48d
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:576:43
[INFO] [stdout]   34:     0x5be0f0655b5a - test::run_test::{{closure}}::h4a5b729e66a38cd8
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:606:41
[INFO] [stdout]   35:     0x5be0f0655b5a - std::sys::backtrace::__rust_begin_short_backtrace::h0496fb742492f573
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:154:18
[INFO] [stdout]   36:     0x5be0f06594d4 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hbb6d257c550a54bd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/thread/mod.rs:561:17
[INFO] [stdout]   37:     0x5be0f06594d4 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h46696fe4a6832328
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   38:     0x5be0f06594d4 - std::panicking::try::do_call::h2625a51b667bfb64
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40
[INFO] [stdout]   39:     0x5be0f06594d4 - std::panicking::try::hb956a59a1973aa4c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19
[INFO] [stdout]   40:     0x5be0f06594d4 - std::panic::catch_unwind::h64f3b9d1067ef6a0
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14
[INFO] [stdout]   41:     0x5be0f06594d4 - std::thread::Builder::spawn_unchecked_::{{closure}}::h42b2841295b6c0b2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/thread/mod.rs:559:30
[INFO] [stdout]   42:     0x5be0f06594d4 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6127de71b8124639
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:     0x5be0f07105fb - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h42f0ba71002a1b2c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1972:9
[INFO] [stdout]   44:     0x5be0f07105fb - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::had9e47d7a3dcecb8
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1972:9
[INFO] [stdout]   45:     0x5be0f07105fb - std::sys::pal::unix::thread::Thread::new::thread_start::h48cf765408f6f5f2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   46:     0x7ab38ae51ac3 - <unknown>
[INFO] [stdout]   47:     0x7ab38aee2a04 - clone
[INFO] [stdout]   48:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     subvolume::subvol::test::loop_test_btrfs_subvol
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "fab8b5ab6e993d08355528450e5f66beb4feb5915facda74246a5f604aed3c31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fab8b5ab6e993d08355528450e5f66beb4feb5915facda74246a5f604aed3c31", kill_on_drop: false }`
[INFO] [stdout] fab8b5ab6e993d08355528450e5f66beb4feb5915facda74246a5f604aed3c31
