[INFO] fetching crate libbtrfs 0.0.20...
[INFO] testing libbtrfs-0.0.20 against beta-2026-03-05 for beta-1.95-1
[INFO] extracting crate libbtrfs 0.0.20 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate libbtrfs 0.0.20
[INFO] finished tweaking crates.io crate libbtrfs 0.0.20
[INFO] tweaked toml for crates.io crate libbtrfs 0.0.20 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate libbtrfs 0.0.20 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 38 packages to latest compatible versions
[INFO] [stderr]       Adding syscalls v0.6.18 (available: v0.8.1)
[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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 08bab6f52288dec2315cbcaa4f14ea11077baafb6593b37d3c28bd87daf67dd9
[INFO] running `Command { std: "docker" "start" "-a" "08bab6f52288dec2315cbcaa4f14ea11077baafb6593b37d3c28bd87daf67dd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08bab6f52288dec2315cbcaa4f14ea11077baafb6593b37d3c28bd87daf67dd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08bab6f52288dec2315cbcaa4f14ea11077baafb6593b37d3c28bd87daf67dd9", kill_on_drop: false }`
[INFO] [stdout] 08bab6f52288dec2315cbcaa4f14ea11077baafb6593b37d3c28bd87daf67dd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 6fbf30f7acb6a4fea69bed0f3bcc1b2d93c7406152151115eda2191afa6d1664
[INFO] running `Command { std: "docker" "start" "-a" "6fbf30f7acb6a4fea69bed0f3bcc1b2d93c7406152151115eda2191afa6d1664", kill_on_drop: false }`
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling bindgen v0.72.1
[INFO] [stderr]    Compiling rustc-hash v2.1.1
[INFO] [stderr]    Compiling bitflags v2.11.0
[INFO] [stderr]    Compiling uuid v1.22.0
[INFO] [stderr]    Compiling libloading v0.8.9
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling libbtrfs v0.0.20 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree_search.rs:205:27
[INFO] [stdout]     |
[INFO] [stdout] 205 |     pub fn search_with<F>(&mut self, f: F) -> io::Result<Option<SearchBuf>>
[INFO] [stdout]     |                           ^^^^^^^^^ the lifetime is elided here ^^^^^^^^^ the same lifetime is hidden 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] 205 |     pub fn search_with<F>(&mut self, f: F) -> io::Result<Option<SearchBuf<'_>>>
[INFO] [stdout]     |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree_search.rs:240:19
[INFO] [stdout]     |
[INFO] [stdout] 240 |     pub fn search(&mut self) -> io::Result<Option<SearchBuf>> {
[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] 240 |     pub fn search(&mut self) -> io::Result<Option<SearchBuf<'_>>> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.85s
[INFO] running `Command { std: "docker" "inspect" "6fbf30f7acb6a4fea69bed0f3bcc1b2d93c7406152151115eda2191afa6d1664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fbf30f7acb6a4fea69bed0f3bcc1b2d93c7406152151115eda2191afa6d1664", kill_on_drop: false }`
[INFO] [stdout] 6fbf30f7acb6a4fea69bed0f3bcc1b2d93c7406152151115eda2191afa6d1664
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] ef486ba032b28b63261c76fbecd92f08cea2fb1af299c948004e7961c424b8fa
[INFO] running `Command { std: "docker" "start" "-a" "ef486ba032b28b63261c76fbecd92f08cea2fb1af299c948004e7961c424b8fa", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree_search.rs:205:27
[INFO] [stdout]     |
[INFO] [stdout] 205 |     pub fn search_with<F>(&mut self, f: F) -> io::Result<Option<SearchBuf>>
[INFO] [stdout]     |                           ^^^^^^^^^ the lifetime is elided here ^^^^^^^^^ the same lifetime is hidden 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] 205 |     pub fn search_with<F>(&mut self, f: F) -> io::Result<Option<SearchBuf<'_>>>
[INFO] [stdout]     |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree_search.rs:240:19
[INFO] [stdout]     |
[INFO] [stdout] 240 |     pub fn search(&mut self) -> io::Result<Option<SearchBuf>> {
[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] 240 |     pub fn search(&mut self) -> io::Result<Option<SearchBuf<'_>>> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling libbtrfs v0.0.20 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree_search.rs:205:27
[INFO] [stdout]     |
[INFO] [stdout] 205 |     pub fn search_with<F>(&mut self, f: F) -> io::Result<Option<SearchBuf>>
[INFO] [stdout]     |                           ^^^^^^^^^ the lifetime is elided here ^^^^^^^^^ the same lifetime is hidden 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] 205 |     pub fn search_with<F>(&mut self, f: F) -> io::Result<Option<SearchBuf<'_>>>
[INFO] [stdout]     |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree_search.rs:240:19
[INFO] [stdout]     |
[INFO] [stdout] 240 |     pub fn search(&mut self) -> io::Result<Option<SearchBuf>> {
[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] 240 |     pub fn search(&mut self) -> io::Result<Option<SearchBuf<'_>>> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "ef486ba032b28b63261c76fbecd92f08cea2fb1af299c948004e7961c424b8fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef486ba032b28b63261c76fbecd92f08cea2fb1af299c948004e7961c424b8fa", kill_on_drop: false }`
[INFO] [stdout] ef486ba032b28b63261c76fbecd92f08cea2fb1af299c948004e7961c424b8fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] cb19ccd924d0732c69ff11fc8be2a80f61049bb263b28bca7fb0d3d2b5d0a7be
[INFO] running `Command { std: "docker" "start" "-a" "cb19ccd924d0732c69ff11fc8be2a80f61049bb263b28bca7fb0d3d2b5d0a7be", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/tree_search.rs:205:27
[INFO] [stderr]     |
[INFO] [stderr] 205 |     pub fn search_with<F>(&mut self, f: F) -> io::Result<Option<SearchBuf>>
[INFO] [stderr]     |                           ^^^^^^^^^ the lifetime is elided here ^^^^^^^^^ the same lifetime is hidden 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] 205 |     pub fn search_with<F>(&mut self, f: F) -> io::Result<Option<SearchBuf<'_>>>
[INFO] [stderr]     |                                                                          ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/tree_search.rs:240:19
[INFO] [stderr]     |
[INFO] [stderr] 240 |     pub fn search(&mut self) -> io::Result<Option<SearchBuf>> {
[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] 240 |     pub fn search(&mut self) -> io::Result<Option<SearchBuf<'_>>> {
[INFO] [stderr]     |                                                            ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `libbtrfs` (lib) generated 2 warnings (run `cargo fix --lib -p libbtrfs` to apply 2 suggestions)
[INFO] [stderr] warning: `libbtrfs` (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/libbtrfs-b5ee15f5974ddfe6)
[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]    Doc-tests libbtrfs
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/dev/dev_info.rs - dev::dev_info::info_iter (line 135) - compile ... ok
[INFO] [stdout] test src/subvol/mod.rs - subvol::snap::create (line 194) - compile ... ok
[INFO] [stdout] test src/fs/mod.rs - fs::info (line 194) - compile ... ok
[INFO] [stdout] test src/tree_search.rs - tree_search::TreeSearch::search_with (line 201) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/tree_search.rs - tree_search::TreeSearch::search_with (line 201) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `TODO` in this scope
[INFO] [stdout]    --> src/tree_search.rs:202:1
[INFO] [stdout]     |
[INFO] [stdout] 202 | TODO
[INFO] [stdout]     | ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/tree_search.rs - tree_search::TreeSearch::search_with (line 201)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "cb19ccd924d0732c69ff11fc8be2a80f61049bb263b28bca7fb0d3d2b5d0a7be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb19ccd924d0732c69ff11fc8be2a80f61049bb263b28bca7fb0d3d2b5d0a7be", kill_on_drop: false }`
[INFO] [stdout] cb19ccd924d0732c69ff11fc8be2a80f61049bb263b28bca7fb0d3d2b5d0a7be
