[INFO] fetching crate libbtrfs 0.0.20...
[INFO] testing libbtrfs-0.0.20 against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate libbtrfs 0.0.20 into /workspace/builds/worker-6-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-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate libbtrfs 0.0.20 on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 40 packages to latest compatible versions
[INFO] [stderr]       Adding syscalls v0.6.18 (available: v0.7.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 189c74ea3219af7bab78ac23c1fa66797a277ce54e55ddb18f227e83807425e6
[INFO] running `Command { std: "docker" "start" "-a" "189c74ea3219af7bab78ac23c1fa66797a277ce54e55ddb18f227e83807425e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "189c74ea3219af7bab78ac23c1fa66797a277ce54e55ddb18f227e83807425e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "189c74ea3219af7bab78ac23c1fa66797a277ce54e55ddb18f227e83807425e6", kill_on_drop: false }`
[INFO] [stdout] 189c74ea3219af7bab78ac23c1fa66797a277ce54e55ddb18f227e83807425e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid -Copt-level=3" "-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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51a246abd271f593ba95dcebfb300e0d9888c9a1b65b5f923f3f7093daad9941
[INFO] running `Command { std: "docker" "start" "-a" "51a246abd271f593ba95dcebfb300e0d9888c9a1b65b5f923f3f7093daad9941", kill_on_drop: false }`
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling bindgen v0.72.1
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling rustc-hash v2.1.1
[INFO] [stderr]    Compiling uuid v1.18.1
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling libloading v0.8.9
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling libbtrfs v0.0.20 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be 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 gets resolved as `'_`
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for 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: lifetime flowing from input to output with different syntax can be 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 lifetime gets resolved as `'_`
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for 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 1m 03s
[INFO] running `Command { std: "docker" "inspect" "51a246abd271f593ba95dcebfb300e0d9888c9a1b65b5f923f3f7093daad9941", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51a246abd271f593ba95dcebfb300e0d9888c9a1b65b5f923f3f7093daad9941", kill_on_drop: false }`
[INFO] [stdout] 51a246abd271f593ba95dcebfb300e0d9888c9a1b65b5f923f3f7093daad9941
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid -Copt-level=3" "-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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfb64690bd5da05d944fdfbe39d38b988a8241cc4467da43fe7e666b0d5e2ac3
[INFO] running `Command { std: "docker" "start" "-a" "cfb64690bd5da05d944fdfbe39d38b988a8241cc4467da43fe7e666b0d5e2ac3", kill_on_drop: false }`
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be 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 gets resolved as `'_`
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for 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: lifetime flowing from input to output with different syntax can be 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 lifetime gets resolved as `'_`
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for 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: lifetime flowing from input to output with different syntax can be 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 gets resolved as `'_`
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for 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: lifetime flowing from input to output with different syntax can be 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 lifetime gets resolved as `'_`
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for 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" "cfb64690bd5da05d944fdfbe39d38b988a8241cc4467da43fe7e666b0d5e2ac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfb64690bd5da05d944fdfbe39d38b988a8241cc4467da43fe7e666b0d5e2ac3", kill_on_drop: false }`
[INFO] [stdout] cfb64690bd5da05d944fdfbe39d38b988a8241cc4467da43fe7e666b0d5e2ac3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid -Copt-level=3" "-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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9b318a3f2eddda32c2e3a47a04672c40049e7366bef6d2034402f6b4ceb7c765
[INFO] running `Command { std: "docker" "start" "-a" "9b318a3f2eddda32c2e3a47a04672c40049e7366bef6d2034402f6b4ceb7c765", kill_on_drop: false }`
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be 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 gets resolved as `'_`
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           this lifetime flows to the output
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for 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: lifetime flowing from input to output with different syntax can be 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 lifetime gets resolved as `'_`
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   this lifetime flows to the output
[INFO] [stderr]     |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for 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
[INFO] [stderr] warning: `libbtrfs` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/libbtrfs-d21b5ddb0e5019d8)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libbtrfs
[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 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] 3 | 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 0.12s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "9b318a3f2eddda32c2e3a47a04672c40049e7366bef6d2034402f6b4ceb7c765", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b318a3f2eddda32c2e3a47a04672c40049e7366bef6d2034402f6b4ceb7c765", kill_on_drop: false }`
[INFO] [stdout] 9b318a3f2eddda32c2e3a47a04672c40049e7366bef6d2034402f6b4ceb7c765
