[INFO] fetching crate llist 0.7.3... [INFO] testing llist-0.7.3 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate llist 0.7.3 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate llist 0.7.3 [INFO] finished tweaking crates.io crate llist 0.7.3 [INFO] tweaked toml for crates.io crate llist 0.7.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate llist 0.7.3 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 1 package to latest compatible version [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-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" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8d6d89234ed8b25375b6b301880a05f41a694880d295f9d6c07a1345aacf5f2d [INFO] running `Command { std: "docker" "start" "-a" "8d6d89234ed8b25375b6b301880a05f41a694880d295f9d6c07a1345aacf5f2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8d6d89234ed8b25375b6b301880a05f41a694880d295f9d6c07a1345aacf5f2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8d6d89234ed8b25375b6b301880a05f41a694880d295f9d6c07a1345aacf5f2d", kill_on_drop: false }` [INFO] [stdout] 8d6d89234ed8b25375b6b301880a05f41a694880d295f9d6c07a1345aacf5f2d [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=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] 297afeba725b1e20a0600de4ef762380ff133bedd93487b306f6ac2c681ed4cd [INFO] running `Command { std: "docker" "start" "-a" "297afeba725b1e20a0600de4ef762380ff133bedd93487b306f6ac2c681ed4cd", kill_on_drop: false }` [INFO] [stderr] Compiling bumpalo v3.19.0 [INFO] [stderr] Compiling llist v0.7.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:67:16 [INFO] [stdout] | [INFO] [stdout] 67 | pub fn nil(&self) -> ConsRef { [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] 67 | pub fn nil(&self) -> ConsRef<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.40s [INFO] running `Command { std: "docker" "inspect" "297afeba725b1e20a0600de4ef762380ff133bedd93487b306f6ac2c681ed4cd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "297afeba725b1e20a0600de4ef762380ff133bedd93487b306f6ac2c681ed4cd", kill_on_drop: false }` [INFO] [stdout] 297afeba725b1e20a0600de4ef762380ff133bedd93487b306f6ac2c681ed4cd [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=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] 80f48954343786953685cad4928c6f09027728fb59bdadc034c515783527008d [INFO] running `Command { std: "docker" "start" "-a" "80f48954343786953685cad4928c6f09027728fb59bdadc034c515783527008d", kill_on_drop: false }` [INFO] [stderr] Compiling llist v0.7.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:67:16 [INFO] [stdout] | [INFO] [stdout] 67 | pub fn nil(&self) -> ConsRef { [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] 67 | pub fn nil(&self) -> ConsRef<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:67:16 [INFO] [stdout] | [INFO] [stdout] 67 | pub fn nil(&self) -> ConsRef { [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] 67 | pub fn nil(&self) -> ConsRef<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.80s [INFO] running `Command { std: "docker" "inspect" "80f48954343786953685cad4928c6f09027728fb59bdadc034c515783527008d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "80f48954343786953685cad4928c6f09027728fb59bdadc034c515783527008d", kill_on_drop: false }` [INFO] [stdout] 80f48954343786953685cad4928c6f09027728fb59bdadc034c515783527008d [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=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] 367f9d289c6e5c9560f159337d77bc5678dba6e7c6d7bbb50494dae36c757896 [INFO] running `Command { std: "docker" "start" "-a" "367f9d289c6e5c9560f159337d77bc5678dba6e7c6d7bbb50494dae36c757896", kill_on_drop: false }` [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/lib.rs:67:16 [INFO] [stderr] | [INFO] [stderr] 67 | pub fn nil(&self) -> ConsRef { [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] 67 | pub fn nil(&self) -> ConsRef<'_, T> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: `llist` (lib) generated 1 warning (run `cargo fix --lib -p llist` to apply 1 suggestion) [INFO] [stderr] warning: `llist` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/llist-a3867165e6fe05fe) [INFO] [stdout] [INFO] [stdout] running 11 tests [INFO] [stdout] test tests::append_2_list ... ok [INFO] [stdout] test tests::count_elements ... ok [INFO] [stdout] test tests::dolist ... ok [INFO] [stdout] test tests::one_element_list ... ok [INFO] [stdout] test tests::one_element_list_with_macro ... ok [INFO] [stdout] test tests::bind_2_lists ... ok [INFO] [stdout] test tests::reverse_three_elements ... ok [INFO] [stdout] test tests::turn_list_to_vec ... ok [INFO] [stdout] test tests::reverse_empty ... ok [INFO] [stdout] test tests::push_few_more_items ... ok [INFO] [stdout] test tests::long_list ... ok [INFO] [stderr] Doc-tests llist [INFO] [stdout] [INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.46s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test src/lib.rs - reverse (line 113) ... ok [INFO] [stdout] test src/lib.rs - push (line 278) ... ok [INFO] [stdout] test src/lib.rs - list (line 244) ... ok [INFO] [stdout] test src/lib.rs - dolist (line 298) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.67s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "367f9d289c6e5c9560f159337d77bc5678dba6e7c6d7bbb50494dae36c757896", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "367f9d289c6e5c9560f159337d77bc5678dba6e7c6d7bbb50494dae36c757896", kill_on_drop: false }` [INFO] [stdout] 367f9d289c6e5c9560f159337d77bc5678dba6e7c6d7bbb50494dae36c757896