[INFO] fetching crate persistent_stack 0.1.1... [INFO] testing persistent_stack-0.1.1 against beta-2021-09-08 for beta-1.56-1 [INFO] extracting crate persistent_stack 0.1.1 into /workspace/builds/worker-8/source [INFO] validating manifest of crates.io crate persistent_stack 0.1.1 on toolchain beta-2021-09-08 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate persistent_stack 0.1.1 [INFO] finished tweaking crates.io crate persistent_stack 0.1.1 [INFO] tweaked toml for crates.io crate persistent_stack 0.1.1 written to /workspace/builds/worker-8/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] e8d1d969e2b812d89fefde7c1fd772c0d1bb3c3c714ef1220fe5e5e7c4e38c97 [INFO] running `Command { std: "docker" "start" "-a" "e8d1d969e2b812d89fefde7c1fd772c0d1bb3c3c714ef1220fe5e5e7c4e38c97", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e8d1d969e2b812d89fefde7c1fd772c0d1bb3c3c714ef1220fe5e5e7c4e38c97", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e8d1d969e2b812d89fefde7c1fd772c0d1bb3c3c714ef1220fe5e5e7c4e38c97", kill_on_drop: false }` [INFO] [stdout] e8d1d969e2b812d89fefde7c1fd772c0d1bb3c3c714ef1220fe5e5e7c4e38c97 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d38eb69d6479bca4aa43eef667fadf3fe044a1cc77b555aa2f448867424c2a9f [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "d38eb69d6479bca4aa43eef667fadf3fe044a1cc77b555aa2f448867424c2a9f", kill_on_drop: false }` [INFO] [stderr] Compiling persistent_stack v0.1.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.38s [INFO] running `Command { std: "docker" "inspect" "d38eb69d6479bca4aa43eef667fadf3fe044a1cc77b555aa2f448867424c2a9f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d38eb69d6479bca4aa43eef667fadf3fe044a1cc77b555aa2f448867424c2a9f", kill_on_drop: false }` [INFO] [stdout] d38eb69d6479bca4aa43eef667fadf3fe044a1cc77b555aa2f448867424c2a9f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 75a8bdd72aa40aa40a9538e90434874748b17dfdc80504a181197e564232be5a [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "75a8bdd72aa40aa40a9538e90434874748b17dfdc80504a181197e564232be5a", kill_on_drop: false }` [INFO] [stderr] Compiling persistent_stack v0.1.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.80s [INFO] running `Command { std: "docker" "inspect" "75a8bdd72aa40aa40a9538e90434874748b17dfdc80504a181197e564232be5a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "75a8bdd72aa40aa40a9538e90434874748b17dfdc80504a181197e564232be5a", kill_on_drop: false }` [INFO] [stdout] 75a8bdd72aa40aa40a9538e90434874748b17dfdc80504a181197e564232be5a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 848d88b81e10afd91c541e2d3b5e9faa590c554354f295b8e75a0c3b83b5a87e [INFO] running `Command { std: "docker" "start" "-a" "848d88b81e10afd91c541e2d3b5e9faa590c554354f295b8e75a0c3b83b5a87e", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/persistent_stack-87bb569717af2196) [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test tests::test_persistent_stack ... ok [INFO] [stdout] test tests::readme_example ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s [INFO] [stdout] [INFO] [stderr] Doc-tests persistent_stack [INFO] [stdout] [INFO] [stdout] running 5 tests [INFO] [stdout] test src/lib.rs - PersistentStack::new (line 57) ... ok [INFO] [stdout] test src/lib.rs - PersistentStack::push (line 69) ... ok [INFO] [stdout] test src/lib.rs - PersistentStack::pop (line 95) ... ok [INFO] [stdout] test src/lib.rs - PersistentStack::iter (line 124) ... ok [INFO] [stdout] test src/lib.rs - PersistentStack (line 15) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.23s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "848d88b81e10afd91c541e2d3b5e9faa590c554354f295b8e75a0c3b83b5a87e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "848d88b81e10afd91c541e2d3b5e9faa590c554354f295b8e75a0c3b83b5a87e", kill_on_drop: false }` [INFO] [stdout] 848d88b81e10afd91c541e2d3b5e9faa590c554354f295b8e75a0c3b83b5a87e