[INFO] fetching crate maskerad_object_pool 0.3.0...
[INFO] testing maskerad_object_pool-0.3.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate maskerad_object_pool 0.3.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate maskerad_object_pool 0.3.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate maskerad_object_pool 0.3.0
[INFO] finished tweaking crates.io crate maskerad_object_pool 0.3.0
[INFO] tweaked toml for crates.io crate maskerad_object_pool 0.3.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 411217ff739b5ada68ceef0dbc2436e24e8b77edb18b32f549afbecf39e5e94f
[INFO] running `Command { std: "docker" "start" "-a" "411217ff739b5ada68ceef0dbc2436e24e8b77edb18b32f549afbecf39e5e94f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "411217ff739b5ada68ceef0dbc2436e24e8b77edb18b32f549afbecf39e5e94f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "411217ff739b5ada68ceef0dbc2436e24e8b77edb18b32f549afbecf39e5e94f", kill_on_drop: false }`
[INFO] [stdout] 411217ff739b5ada68ceef0dbc2436e24e8b77edb18b32f549afbecf39e5e94f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 94df13b7e8a20be4cab0f15686d14b3d9f2658b3181dd9694ca53c76f621ab04
[INFO] running `Command { std: "docker" "start" "-a" "94df13b7e8a20be4cab0f15686d14b3d9f2658b3181dd9694ca53c76f621ab04", kill_on_drop: false }`
[INFO] [stderr]    Compiling maskerad_object_pool v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:37:32
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "94df13b7e8a20be4cab0f15686d14b3d9f2658b3181dd9694ca53c76f621ab04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94df13b7e8a20be4cab0f15686d14b3d9f2658b3181dd9694ca53c76f621ab04", kill_on_drop: false }`
[INFO] [stdout] 94df13b7e8a20be4cab0f15686d14b3d9f2658b3181dd9694ca53c76f621ab04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b96fa156496384c467cbff186bb3a9b824d6b0810f2931c20a5bc99a95c60d0
[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" "0b96fa156496384c467cbff186bb3a9b824d6b0810f2931c20a5bc99a95c60d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling maskerad_object_pool v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:37:32
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:37:32
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "0b96fa156496384c467cbff186bb3a9b824d6b0810f2931c20a5bc99a95c60d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b96fa156496384c467cbff186bb3a9b824d6b0810f2931c20a5bc99a95c60d0", kill_on_drop: false }`
[INFO] [stdout] 0b96fa156496384c467cbff186bb3a9b824d6b0810f2931c20a5bc99a95c60d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1fe4cdeef8cee0790afaeebda36baf12f5a56a25f0b6d5bbbee1920849beeee0
[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" "1fe4cdeef8cee0790afaeebda36baf12f5a56a25f0b6d5bbbee1920849beeee0", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:37:32
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:37:32
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/maskerad_object_pool-4db3ee73dea5efa1
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test concurrent_pool_allocator::refcounted_objectpool_tests::test_create_no_more_objects ... ok
[INFO] [stdout] test concurrent_pool_allocator::refcounted_objectpool_tests::test_create_strict ... ok
[INFO] [stdout] test concurrent_pool_allocator::refcounted_objectpool_tests::test_drop_wrapper_around_smart_pointer ... ok
[INFO] [stdout] test concurrent_pool_allocator::refcounted_objectpool_tests::test_is_used_at_initialization ... ok
[INFO] [stdout] test refcounted_pool_allocator::refcounted_objectpool_tests::test_create_strict ... ok
[INFO] [stdout] test refcounted_pool_allocator::refcounted_objectpool_tests::test_create_no_more_objects ... ok
[INFO] [stdout] test concurrent_pool_allocator::refcounted_objectpool_tests::test_modify_inner_value ... ok
[INFO] [stdout] test refcounted_pool_allocator::refcounted_objectpool_tests::test_is_used_at_initialization ... ok
[INFO] [stdout] test refcounted_pool_allocator::refcounted_objectpool_tests::test_len ... ok
[INFO] [stdout] test refcounted_pool_allocator::refcounted_objectpool_tests::test_modify_inner_value ... ok
[INFO] [stdout] test refcounted_pool_allocator::refcounted_objectpool_tests::test_drop_wrapper_around_smart_pointer ... ok
[INFO] [stdout] test concurrent_pool_allocator::refcounted_objectpool_tests::test_len ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests maskerad_object_pool
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test src/concurrent_pool_allocator.rs - concurrent_pool_allocator::ArcPool<T>::create (line 266) ... ok
[INFO] [stdout] test src/concurrent_pool_handler.rs - concurrent_pool_handler::ArcHandle<T>::write (line 189) ... ok
[INFO] [stdout] test src/refcounted_pool_allocator.rs - refcounted_pool_allocator::RcPool (line 18) ... ok
[INFO] [stdout] test src/concurrent_pool_allocator.rs - concurrent_pool_allocator::ArcPool<T>::pool_slice (line 141) ... ok
[INFO] [stdout] test src/concurrent_pool_handler.rs - concurrent_pool_handler::ArcHandle<T>::try_write (line 254) ... ok
[INFO] [stdout] test src/concurrent_pool_handler.rs - concurrent_pool_handler::ArcHandle<T>::try_read (line 120) ... ok
[INFO] [stdout] test src/concurrent_pool_allocator.rs - concurrent_pool_allocator::ArcPool<T>::capacity (line 382) ... ok
[INFO] [stdout] test src/refcounted_pool_allocator.rs - refcounted_pool_allocator::RcPool<T>::capacity (line 384) ... ok
[INFO] [stdout] test src/concurrent_pool_allocator.rs - concurrent_pool_allocator::ArcPool<T>::nb_unused (line 332) ... ok
[INFO] [stdout] test src/concurrent_pool_allocator.rs - concurrent_pool_allocator::ArcPool (line 18) ... ok
[INFO] [stdout] test src/concurrent_pool_allocator.rs - concurrent_pool_allocator::ArcPool<T>::with_capacity (line 89) ... ok
[INFO] [stdout] test src/lib.rs - (line 29) ... ok
[INFO] [stdout] test src/concurrent_pool_allocator.rs - concurrent_pool_allocator::ArcPool<T>::create_strict (line 196) ... ok
[INFO] [stdout] test src/concurrent_pool_handler.rs - concurrent_pool_handler::ArcHandle<T>::read (line 56) ... ok
[INFO] [stdout] test src/refcounted_pool_allocator.rs - refcounted_pool_allocator::RcPool<T>::create (line 267) ... ok
[INFO] [stdout] test src/refcounted_pool_allocator.rs - refcounted_pool_allocator::RcPool<T>::create_strict (line 197) ... ok
[INFO] [stdout] test src/refcounted_pool_handler.rs - refcounted_pool_handler::RcHandle<T>::as_ptr (line 293) ... ok
[INFO] [stdout] test src/refcounted_pool_allocator.rs - refcounted_pool_allocator::RcPool<T>::nb_unused (line 333) ... ok
[INFO] [stdout] test src/refcounted_pool_allocator.rs - refcounted_pool_allocator::RcPool<T>::with_capacity (line 88) ... ok
[INFO] [stdout] test src/refcounted_pool_allocator.rs - refcounted_pool_allocator::RcPool<T>::pool_slice (line 140) ... ok
[INFO] [stdout] test src/refcounted_pool_handler.rs - refcounted_pool_handler::RcHandle<T>::borrow_mut (line 174) ... ok
[INFO] [stdout] test src/refcounted_pool_handler.rs - refcounted_pool_handler::RcHandle<T>::borrow (line 51) ... ok
[INFO] [stdout] test src/refcounted_pool_handler.rs - refcounted_pool_handler::RcHandle<T>::try_borrow_mut (line 233) ... ok
[INFO] [stdout] test src/refcounted_pool_handler.rs - refcounted_pool_handler::RcHandle<T>::try_borrow (line 109) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1fe4cdeef8cee0790afaeebda36baf12f5a56a25f0b6d5bbbee1920849beeee0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fe4cdeef8cee0790afaeebda36baf12f5a56a25f0b6d5bbbee1920849beeee0", kill_on_drop: false }`
[INFO] [stdout] 1fe4cdeef8cee0790afaeebda36baf12f5a56a25f0b6d5bbbee1920849beeee0