[INFO] fetching crate backtracer_core 0.0.7...
[INFO] testing backtracer_core-0.0.7 against beta-2025-09-21 for beta-1.91-2
[INFO] extracting crate backtracer_core 0.0.7 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate backtracer_core 0.0.7
[INFO] finished tweaking crates.io crate backtracer_core 0.0.7
[INFO] tweaked toml for crates.io crate backtracer_core 0.0.7 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate backtracer_core 0.0.7 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding addr2line v0.16.0 (available: v0.25.1)
[INFO] [stderr]       Adding cfg-if v0.1.10 (available: v1.0.3)
[INFO] [stderr]       Adding gimli v0.25.0 (available: v0.32.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6cb7fa3861e1fb3e93a062448d454cf50a9e404804f9f63017678afa9aa2fc8
[INFO] running `Command { std: "docker" "start" "-a" "e6cb7fa3861e1fb3e93a062448d454cf50a9e404804f9f63017678afa9aa2fc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6cb7fa3861e1fb3e93a062448d454cf50a9e404804f9f63017678afa9aa2fc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6cb7fa3861e1fb3e93a062448d454cf50a9e404804f9f63017678afa9aa2fc8", kill_on_drop: false }`
[INFO] [stdout] e6cb7fa3861e1fb3e93a062448d454cf50a9e404804f9f63017678afa9aa2fc8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d7f467c47dcbda40b60e69d17b1799ead5a06ee0c0dfc112cf8355fcbfd4596
[INFO] running `Command { std: "docker" "start" "-a" "0d7f467c47dcbda40b60e69d17b1799ead5a06ee0c0dfc112cf8355fcbfd4596", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling rustc-demangle v0.1.26
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling x86 v0.52.0
[INFO] [stderr]    Compiling addr2line v0.16.0
[INFO] [stderr]    Compiling backtracer_core v0.0.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/symbolize/mod.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn name(&self) -> Option<Cow<str>> {
[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] 74 |     pub fn name(&self) -> Option<Cow<'_, str>> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/symbolize/freestanding.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn name(&self) -> Option<Cow<str>> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn name(&self) -> Option<Cow<'_, str>> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.35s
[INFO] running `Command { std: "docker" "inspect" "0d7f467c47dcbda40b60e69d17b1799ead5a06ee0c0dfc112cf8355fcbfd4596", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d7f467c47dcbda40b60e69d17b1799ead5a06ee0c0dfc112cf8355fcbfd4596", kill_on_drop: false }`
[INFO] [stdout] 0d7f467c47dcbda40b60e69d17b1799ead5a06ee0c0dfc112cf8355fcbfd4596
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31d5eb86fda245a260b9417b8968d81d03b91e5d30927f935cbaa16b78e1eede
[INFO] running `Command { std: "docker" "start" "-a" "31d5eb86fda245a260b9417b8968d81d03b91e5d30927f935cbaa16b78e1eede", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling backtracer_core v0.0.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/symbolize/mod.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn name(&self) -> Option<Cow<str>> {
[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] 74 |     pub fn name(&self) -> Option<Cow<'_, str>> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/symbolize/freestanding.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn name(&self) -> Option<Cow<str>> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn name(&self) -> Option<Cow<'_, str>> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/symbolize/mod.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn name(&self) -> Option<Cow<str>> {
[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] 74 |     pub fn name(&self) -> Option<Cow<'_, str>> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/symbolize/freestanding.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn name(&self) -> Option<Cow<str>> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn name(&self) -> Option<Cow<'_, str>> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "31d5eb86fda245a260b9417b8968d81d03b91e5d30927f935cbaa16b78e1eede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31d5eb86fda245a260b9417b8968d81d03b91e5d30927f935cbaa16b78e1eede", kill_on_drop: false }`
[INFO] [stdout] 31d5eb86fda245a260b9417b8968d81d03b91e5d30927f935cbaa16b78e1eede
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b1cac40acac5e59e8aed61374259beb76106df475de3e8be78c1ec6dfdafd6d4
[INFO] running `Command { std: "docker" "start" "-a" "b1cac40acac5e59e8aed61374259beb76106df475de3e8be78c1ec6dfdafd6d4", kill_on_drop: false }`
[INFO] [stdout] 
[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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/symbolize/mod.rs:74:17
[INFO] [stderr]    |
[INFO] [stderr] 74 |     pub fn name(&self) -> Option<Cow<str>> {
[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] 74 |     pub fn name(&self) -> Option<Cow<'_, str>> {
[INFO] [stderr]    |                                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/symbolize/freestanding.rs:99:17
[INFO] [stderr]    |
[INFO] [stderr] 99 |     pub fn name(&self) -> Option<Cow<str>> {
[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] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 99 |     pub fn name(&self) -> Option<Cow<'_, str>> {
[INFO] [stderr]    |                                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: `backtracer_core` (lib) generated 2 warnings (run `cargo fix --lib -p backtracer_core` to apply 2 suggestions)
[INFO] [stderr] warning: `backtracer_core` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/backtracer_core-8f26b93bda09de69)
[INFO] [stderr]    Doc-tests backtracer_core
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/symbolize/mod.rs - symbolize::resolve (line 27) ... FAILED
[INFO] [stdout] test src/backtrace/mod.rs - backtrace::trace (line 26) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/symbolize/mod.rs - symbolize::resolve (line 27) stdout ----
[INFO] [stdout] error[E0463]: can't find crate for `backtrace`
[INFO] [stdout]  --> src/symbolize/mod.rs:28:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate backtrace;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/backtrace/mod.rs - backtrace::trace (line 26) stdout ----
[INFO] [stdout] error[E0463]: can't find crate for `backtracer`
[INFO] [stdout]  --> src/backtrace/mod.rs:27:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate backtracer;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `backtrace`
[INFO] [stdout]  --> src/backtrace/mod.rs:29:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     backtrace::trace(|frame| {
[INFO] [stdout]   |     ^^^^^^^^^ use of unresolved module or unlinked crate `backtrace`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 4 |     backtracer::trace(|frame| {
[INFO] [stdout]   |              +
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0463.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/backtrace/mod.rs - backtrace::trace (line 26)
[INFO] [stdout]     src/symbolize/mod.rs - symbolize::resolve (line 27)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.13s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "b1cac40acac5e59e8aed61374259beb76106df475de3e8be78c1ec6dfdafd6d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1cac40acac5e59e8aed61374259beb76106df475de3e8be78c1ec6dfdafd6d4", kill_on_drop: false }`
[INFO] [stdout] b1cac40acac5e59e8aed61374259beb76106df475de3e8be78c1ec6dfdafd6d4
