[INFO] cloning repository https://github.com/dekellum/tao-log
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dekellum/tao-log" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdekellum%2Ftao-log", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdekellum%2Ftao-log'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c811fc2cf78337f07eb75edd8de23475e2ca76c
[INFO] testing dekellum/tao-log against beta-2026-03-05 for beta-1.95-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdekellum%2Ftao-log" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dekellum/tao-log
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/dekellum/tao-log
[INFO] tweaked toml for git repo https://github.com/dekellum/tao-log written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dekellum/tao-log on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dekellum/tao-log 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-2026-03-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8858470214342b89b59532e4a8b9cd4c126329017149698fd82cc43f7980d73
[INFO] running `Command { std: "docker" "start" "-a" "a8858470214342b89b59532e4a8b9cd4c126329017149698fd82cc43f7980d73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8858470214342b89b59532e4a8b9cd4c126329017149698fd82cc43f7980d73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8858470214342b89b59532e4a8b9cd4c126329017149698fd82cc43f7980d73", kill_on_drop: false }`
[INFO] [stdout] a8858470214342b89b59532e4a8b9cd4c126329017149698fd82cc43f7980d73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5b6529ca473258d3ed8338a63101d05d689b0140d8e73c59e578c61ecaaf5ad
[INFO] running `Command { std: "docker" "start" "-a" "b5b6529ca473258d3ed8338a63101d05d689b0140d8e73c59e578c61ecaaf5ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling tao-log v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]  --> build.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature = "cargo-clippy", allow(clippy::all))]
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected values for `feature` are: `std`
[INFO] [stdout]   = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "b5b6529ca473258d3ed8338a63101d05d689b0140d8e73c59e578c61ecaaf5ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5b6529ca473258d3ed8338a63101d05d689b0140d8e73c59e578c61ecaaf5ad", kill_on_drop: false }`
[INFO] [stdout] b5b6529ca473258d3ed8338a63101d05d689b0140d8e73c59e578c61ecaaf5ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3382229422b1909668a12b7946dd58ed36800fea3b594e35dff3fbe51690a283
[INFO] running `Command { std: "docker" "start" "-a" "3382229422b1909668a12b7946dd58ed36800fea3b594e35dff3fbe51690a283", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]  --> build.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature = "cargo-clippy", allow(clippy::all))]
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected values for `feature` are: `std`
[INFO] [stdout]   = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling tao-log v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> tests/fatal.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn lock(&self) -> ReentrantMutexGuard<RefCell<Option<String>>> {
[INFO] [stdout]    |             ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |
[INFO] [stdout]    |             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn lock(&self) -> ReentrantMutexGuard<'_, RefCell<Option<String>>> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]   --> tests/fatal.rs:60:14
[INFO] [stdout]    |
[INFO] [stdout] 60 |     unsafe { LOG_STATE.as_ref().unwrap().clone() }
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.11s
[INFO] running `Command { std: "docker" "inspect" "3382229422b1909668a12b7946dd58ed36800fea3b594e35dff3fbe51690a283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3382229422b1909668a12b7946dd58ed36800fea3b594e35dff3fbe51690a283", kill_on_drop: false }`
[INFO] [stdout] 3382229422b1909668a12b7946dd58ed36800fea3b594e35dff3fbe51690a283
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6b31a197a8a1a72061bf10284a5044ffe677e5f35e4d930833730b37e21eeb47
[INFO] running `Command { std: "docker" "start" "-a" "6b31a197a8a1a72061bf10284a5044ffe677e5f35e4d930833730b37e21eeb47", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stderr]  --> build.rs:1:13
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![cfg_attr(feature = "cargo-clippy", allow(clippy::all))]
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: expected values for `feature` are: `std`
[INFO] [stderr]   = help: consider adding `cargo-clippy` as a feature in `Cargo.toml`
[INFO] [stderr]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tao-log` (build script) generated 1 warning
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> tests/fatal.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn lock(&self) -> ReentrantMutexGuard<RefCell<Option<String>>> {
[INFO] [stderr]    |             ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |             |
[INFO] [stderr]    |             the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn lock(&self) -> ReentrantMutexGuard<'_, RefCell<Option<String>>> {
[INFO] [stderr]    |                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: creating a shared reference to mutable static
[INFO] [stderr]   --> tests/fatal.rs:60:14
[INFO] [stderr]    |
[INFO] [stderr] 60 |     unsafe { LOG_STATE.as_ref().unwrap().clone() }
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stderr]    |
[INFO] [stderr]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stderr]    = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tao-log` (test "fatal") generated 2 warnings (run `cargo fix --test "fatal" -p tao-log` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tao_log-83501eccb6177dad)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/fatal.rs (/opt/rustwide/target/debug/deps/fatal-591f2eeb94a0f706)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running tests/log_v.rs (/opt/rustwide/target/debug/deps/log_v-e2fc3e26024a8cb1)
[INFO] [stdout] test fatal_format_msg - should panic ... ok
[INFO] [stderr] 
[INFO] [stdout] test fatal_static_msg - should panic ... ok
[INFO] [stderr] thread 'main' (29) panicked at tests/log_v.rs:60:5:
[INFO] [stdout] 
[INFO] [stderr] assertion `left == right` failed
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stderr]   left: Some("i+1 → 33")
[INFO] [stdout] 
[INFO] [stderr]  right: Some("i + 1 → 33")
[INFO] [stdout] INFO  Start of test (test output follows)
[INFO] [stderr] stack backtrace:
[INFO] [stdout] DEBUG i → 32
[INFO] [stdout] DEBUG i+1 → 33
[INFO] [stderr]    0:     0x57712d7cb35a - std[b80a194dd3c418bb]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]    1:     0x57712d7cb35a - std[b80a194dd3c418bb]::backtrace_rs::backtrace::trace_unsynchronized::<std[b80a194dd3c418bb]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]    2:     0x57712d7cb35a - std[b80a194dd3c418bb]::sys::backtrace::_print_fmt
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]    3:     0x57712d7cb35a - <<std[b80a194dd3c418bb]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[10b6fa85044e1869]::fmt::Display>::fmt
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]    4:     0x57712d7dbd1a - <core[10b6fa85044e1869]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]    5:     0x57712d7dbd1a - core[10b6fa85044e1869]::fmt::write
[INFO] [stderr]    6:     0x57712d7cecb2 - std[b80a194dd3c418bb]::io::default_write_fmt::<std[b80a194dd3c418bb]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/io/mod.rs:639:11
[INFO] [stderr]    7:     0x57712d7cecb2 - <std[b80a194dd3c418bb]::sys::stdio::unix::Stderr as std[b80a194dd3c418bb]::io::Write>::write_fmt
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]    8:     0x57712d7b6f9f - <std[b80a194dd3c418bb]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]    9:     0x57712d7b6f9f - std[b80a194dd3c418bb]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:292:27
[INFO] [stderr]   10:     0x57712d7c75e1 - std[b80a194dd3c418bb]::panicking::default_hook
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:319:9
[INFO] [stderr]   11:     0x57712d7c779b - std[b80a194dd3c418bb]::panicking::panic_with_hook
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:825:13
[INFO] [stderr]   12:     0x57712d7b7058 - std[b80a194dd3c418bb]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:698:13
[INFO] [stderr]   13:     0x57712d7aed59 - std[b80a194dd3c418bb]::sys::backtrace::__rust_end_short_backtrace::<std[b80a194dd3c418bb]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]   14:     0x57712d7b78bd - __rustc[9698a3e60dd14283]::rust_begin_unwind
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:689:5
[INFO] [stderr]   15:     0x57712d7dc52c - core[10b6fa85044e1869]::panicking::panic_fmt
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/panicking.rs:80:14
[INFO] [stderr]   16:     0x57712d7dc443 - core[10b6fa85044e1869]::panicking::assert_failed_inner
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/panicking.rs:439:17
[INFO] [stderr]   17:     0x57712d79a8f7 - core::panicking::assert_failed::hd2003c18a9e4dd4d
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/panicking.rs:394:5
[INFO] [stderr]   18:     0x57712d79bdba - log_v::main::hb4758e6bc8c13565
[INFO] [stderr]                                at /opt/rustwide/workdir/tests/log_v.rs:60:5
[INFO] [stderr]   19:     0x57712d79970b - core::ops::function::FnOnce::call_once::h46b0d32a0f7142f1
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   20:     0x57712d79864e - std::sys::backtrace::__rust_begin_short_backtrace::hc79e9ee380a6675e
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/sys/backtrace.rs:166:18
[INFO] [stderr]   21:     0x57712d798621 - std::rt::lang_start::{{closure}}::h3d5a53670bf3475b
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/rt.rs:206:18
[INFO] [stderr]   22:     0x57712d7c6d64 - <&dyn core[10b6fa85044e1869]::ops::function::Fn<(), Output = i32> + core[10b6fa85044e1869]::panic::unwind_safe::RefUnwindSafe + core[10b6fa85044e1869]::marker::Sync as core[10b6fa85044e1869]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/ops/function.rs:287:21
[INFO] [stderr]   23:     0x57712d7c6d64 - std[b80a194dd3c418bb]::panicking::catch_unwind::do_call::<&dyn core[10b6fa85044e1869]::ops::function::Fn<(), Output = i32> + core[10b6fa85044e1869]::panic::unwind_safe::RefUnwindSafe + core[10b6fa85044e1869]::marker::Sync, i32>
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:581:40
[INFO] [stderr]   24:     0x57712d7c6d64 - std[b80a194dd3c418bb]::panicking::catch_unwind::<i32, &dyn core[10b6fa85044e1869]::ops::function::Fn<(), Output = i32> + core[10b6fa85044e1869]::panic::unwind_safe::RefUnwindSafe + core[10b6fa85044e1869]::marker::Sync>
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:544:19
[INFO] [stderr]   25:     0x57712d7c6d64 - std[b80a194dd3c418bb]::panic::catch_unwind::<&dyn core[10b6fa85044e1869]::ops::function::Fn<(), Output = i32> + core[10b6fa85044e1869]::panic::unwind_safe::RefUnwindSafe + core[10b6fa85044e1869]::marker::Sync, i32>
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panic.rs:359:14
[INFO] [stderr]   26:     0x57712d7c6d64 - std[b80a194dd3c418bb]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/rt.rs:175:24
[INFO] [stderr]   27:     0x57712d7c6d64 - std[b80a194dd3c418bb]::panicking::catch_unwind::do_call::<std[b80a194dd3c418bb]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:581:40
[INFO] [stderr]   28:     0x57712d7c6d64 - std[b80a194dd3c418bb]::panicking::catch_unwind::<isize, std[b80a194dd3c418bb]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:544:19
[INFO] [stderr]   29:     0x57712d7c6d64 - std[b80a194dd3c418bb]::panic::catch_unwind::<std[b80a194dd3c418bb]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panic.rs:359:14
[INFO] [stderr]   30:     0x57712d7c6d64 - std[b80a194dd3c418bb]::rt::lang_start_internal
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/rt.rs:171:5
[INFO] [stderr]   31:     0x57712d798607 - std::rt::lang_start::hb672234d569e7d13
[INFO] [stderr]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/rt.rs:205:5
[INFO] [stderr]   32:     0x57712d7a063e - main
[INFO] [stderr]   33:     0x74cc8590f1ca - <unknown>
[INFO] [stderr]   34:     0x74cc8590f28b - __libc_start_main
[INFO] [stderr]   35:     0x57712d7983d5 - _start
[INFO] [stderr]   36:                0x0 - <unknown>
[INFO] [stderr] error: test failed, to rerun pass `--test log_v`
[INFO] running `Command { std: "docker" "inspect" "6b31a197a8a1a72061bf10284a5044ffe677e5f35e4d930833730b37e21eeb47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b31a197a8a1a72061bf10284a5044ffe677e5f35e4d930833730b37e21eeb47", kill_on_drop: false }`
[INFO] [stdout] 6b31a197a8a1a72061bf10284a5044ffe677e5f35e4d930833730b37e21eeb47
