[INFO] fetching crate mownstr 0.3.1... [INFO] testing mownstr-0.3.1 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate mownstr 0.3.1 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate mownstr 0.3.1 [INFO] finished tweaking crates.io crate mownstr 0.3.1 [INFO] tweaked toml for crates.io crate mownstr 0.3.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate mownstr 0.3.1 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] crate crates.io crate mownstr 0.3.1 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-2025-09-21" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6b3dbaf349d238ef1c0168e0fdf7d2f063baec2f9085a298387d021692cf8014 [INFO] running `Command { std: "docker" "start" "-a" "6b3dbaf349d238ef1c0168e0fdf7d2f063baec2f9085a298387d021692cf8014", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6b3dbaf349d238ef1c0168e0fdf7d2f063baec2f9085a298387d021692cf8014", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6b3dbaf349d238ef1c0168e0fdf7d2f063baec2f9085a298387d021692cf8014", kill_on_drop: false }` [INFO] [stdout] 6b3dbaf349d238ef1c0168e0fdf7d2f063baec2f9085a298387d021692cf8014 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0729da26d259cadb232b2809024aabcdff18c0a8565d63ca3452e84541dd3eca [INFO] running `Command { std: "docker" "start" "-a" "0729da26d259cadb232b2809024aabcdff18c0a8565d63ca3452e84541dd3eca", kill_on_drop: false }` [INFO] [stderr] Compiling mownstr v0.3.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:79:27 [INFO] [stdout] | [INFO] [stdout] 79 | pub const fn borrowed(&self) -> MownStr { [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] 79 | pub const fn borrowed(&self) -> MownStr<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.41s [INFO] running `Command { std: "docker" "inspect" "0729da26d259cadb232b2809024aabcdff18c0a8565d63ca3452e84541dd3eca", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0729da26d259cadb232b2809024aabcdff18c0a8565d63ca3452e84541dd3eca", kill_on_drop: false }` [INFO] [stdout] 0729da26d259cadb232b2809024aabcdff18c0a8565d63ca3452e84541dd3eca [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9a859d5e600d75ba561344d9011d477d61b454f27cd6a6c74701e5f95220c5da [INFO] running `Command { std: "docker" "start" "-a" "9a859d5e600d75ba561344d9011d477d61b454f27cd6a6c74701e5f95220c5da", kill_on_drop: false }` [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:79:27 [INFO] [stdout] | [INFO] [stdout] 79 | pub const fn borrowed(&self) -> MownStr { [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] 79 | pub const fn borrowed(&self) -> MownStr<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling mownstr v0.3.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:79:27 [INFO] [stdout] | [INFO] [stdout] 79 | pub const fn borrowed(&self) -> MownStr { [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] 79 | pub const fn borrowed(&self) -> MownStr<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.58s [INFO] running `Command { std: "docker" "inspect" "9a859d5e600d75ba561344d9011d477d61b454f27cd6a6c74701e5f95220c5da", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9a859d5e600d75ba561344d9011d477d61b454f27cd6a6c74701e5f95220c5da", kill_on_drop: false }` [INFO] [stdout] 9a859d5e600d75ba561344d9011d477d61b454f27cd6a6c74701e5f95220c5da [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] d73ba347dd85700a0ee9244e29d022db744185dd36c0031ae6e2e2630cab5f4e [INFO] running `Command { std: "docker" "start" "-a" "d73ba347dd85700a0ee9244e29d022db744185dd36c0031ae6e2e2630cab5f4e", kill_on_drop: false }` [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/lib.rs:79:27 [INFO] [stderr] | [INFO] [stderr] 79 | pub const fn borrowed(&self) -> MownStr { [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] 79 | pub const fn borrowed(&self) -> MownStr<'_> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: `mownstr` (lib) generated 1 warning (run `cargo fix --lib -p mownstr` to apply 1 suggestion) [INFO] [stderr] warning: `mownstr` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mownstr-8a556bbd81799223) [INFO] [stdout] [INFO] [stdout] running 17 tests [INFO] [stdout] test test::borrowed ... ok [INFO] [stdout] test test::build_borrowed_empty ... ok [INFO] [stdout] test test::build_owned_from_cow ... ok [INFO] [stdout] test test::build_owned_from_string ... ok [INFO] [stdout] test test::deref ... ok [INFO] [stdout] test test::hash ... ok [INFO] [stdout] test test::niche ... ok [INFO] [stdout] test test::no_double_free ... ok [INFO] [stdout] test test::build_borrowed ... ok [INFO] [stdout] test test::size ... ok [INFO] [stdout] test test::order ... ok [INFO] [stdout] test test::display ... ok [INFO] [stdout] test test::empty_string ... ok [INFO] [stdout] test test::eq ... ok [INFO] [stdout] test test::build_borrowed_from_cow ... ok [INFO] [stdout] test test::build_owned_from_box ... ok [INFO] [stdout] test test::no_memory_leak ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.97s [INFO] [stdout] [INFO] [stderr] Doc-tests mownstr [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - MownStr<'a>::to (line 314) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "d73ba347dd85700a0ee9244e29d022db744185dd36c0031ae6e2e2630cab5f4e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d73ba347dd85700a0ee9244e29d022db744185dd36c0031ae6e2e2630cab5f4e", kill_on_drop: false }` [INFO] [stdout] d73ba347dd85700a0ee9244e29d022db744185dd36c0031ae6e2e2630cab5f4e