[INFO] fetching crate core_extensions 1.5.2...
[INFO] testing core_extensions-1.5.2 against 1.59.0 for beta-1.60-1
[INFO] extracting crate core_extensions 1.5.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate core_extensions 1.5.2 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate core_extensions 1.5.2
[INFO] finished tweaking crates.io crate core_extensions 1.5.2
[INFO] tweaked toml for crates.io crate core_extensions 1.5.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8fcf1bb479d8f319fcd8902c3c21e5f82d00e35556cb74bd95eb1b04d572028
[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" "d8fcf1bb479d8f319fcd8902c3c21e5f82d00e35556cb74bd95eb1b04d572028", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8fcf1bb479d8f319fcd8902c3c21e5f82d00e35556cb74bd95eb1b04d572028", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8fcf1bb479d8f319fcd8902c3c21e5f82d00e35556cb74bd95eb1b04d572028", kill_on_drop: false }`
[INFO] [stdout] d8fcf1bb479d8f319fcd8902c3c21e5f82d00e35556cb74bd95eb1b04d572028
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", 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] b52b917b89fda9e2f1fa6fbd79c955ac157744e92f9cce20bcdb48964f2dfbda
[INFO] running `Command { std: "docker" "start" "-a" "b52b917b89fda9e2f1fa6fbd79c955ac157744e92f9cce20bcdb48964f2dfbda", kill_on_drop: false }`
[INFO] [stderr]    Compiling core_extensions v1.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "b52b917b89fda9e2f1fa6fbd79c955ac157744e92f9cce20bcdb48964f2dfbda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b52b917b89fda9e2f1fa6fbd79c955ac157744e92f9cce20bcdb48964f2dfbda", kill_on_drop: false }`
[INFO] [stdout] b52b917b89fda9e2f1fa6fbd79c955ac157744e92f9cce20bcdb48964f2dfbda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 824e0951a7804d240d11175547236bb0b7d2f0e3e5492f6d8b42e35bc5665d62
[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" "824e0951a7804d240d11175547236bb0b7d2f0e3e5492f6d8b42e35bc5665d62", kill_on_drop: false }`
[INFO] [stderr]    Compiling core_extensions v1.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src_core_extensions/test_utils.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn new(max: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `clone_count`
[INFO] [stdout]   --> src_core_extensions/test_utils.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn clone_count(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `drop_count`
[INFO] [stdout]   --> src_core_extensions/test_utils.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn drop_count(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "824e0951a7804d240d11175547236bb0b7d2f0e3e5492f6d8b42e35bc5665d62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "824e0951a7804d240d11175547236bb0b7d2f0e3e5492f6d8b42e35bc5665d62", kill_on_drop: false }`
[INFO] [stdout] 824e0951a7804d240d11175547236bb0b7d2f0e3e5492f6d8b42e35bc5665d62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2d7fb8df6a27b2bfb46dff9ee24d987a8d977116d591e0db061d1ad4ee4da83c
[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" "2d7fb8df6a27b2bfb46dff9ee24d987a8d977116d591e0db061d1ad4ee4da83c", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src_core_extensions/test_utils.rs:53:12
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub fn new(max: usize) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `clone_count`
[INFO] [stderr]   --> src_core_extensions/test_utils.rs:61:12
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn clone_count(&self) -> usize {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `drop_count`
[INFO] [stderr]   --> src_core_extensions/test_utils.rs:65:12
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn drop_count(&self) -> usize {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `core_extensions` (lib test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/core_extensions-e0a1f2c6141b5c83)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests core_extensions
[INFO] [stdout] test utils::tests::take_manuallydrop_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src_core_extensions/lib.rs - (line 76) ... ignored
[INFO] [stdout] test src_core_extensions/utils.rs - utils::impossible (line 115) ... ignored
[INFO] [stdout] test src_core_extensions/macros/matches_macro.rs - macros::matches_macro::matches (line 9) ... ok
[INFO] [stdout] test src_core_extensions/utils.rs - utils::transmute_ignore_size (line 19) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.48s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2d7fb8df6a27b2bfb46dff9ee24d987a8d977116d591e0db061d1ad4ee4da83c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d7fb8df6a27b2bfb46dff9ee24d987a8d977116d591e0db061d1ad4ee4da83c", kill_on_drop: false }`
[INFO] [stdout] 2d7fb8df6a27b2bfb46dff9ee24d987a8d977116d591e0db061d1ad4ee4da83c