[INFO] fetching crate gcmodule 0.3.3...
[INFO] testing gcmodule-0.3.3 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate gcmodule 0.3.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate gcmodule 0.3.3 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gcmodule 0.3.3
[INFO] finished tweaking crates.io crate gcmodule 0.3.3
[INFO] tweaked toml for crates.io crate gcmodule 0.3.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gcmodule_derive v0.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0278ac806b5aa02b6a1089eb71327af86b069ad0b567c0606fc25b6f5436e623
[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" "0278ac806b5aa02b6a1089eb71327af86b069ad0b567c0606fc25b6f5436e623", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0278ac806b5aa02b6a1089eb71327af86b069ad0b567c0606fc25b6f5436e623", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0278ac806b5aa02b6a1089eb71327af86b069ad0b567c0606fc25b6f5436e623", kill_on_drop: false }`
[INFO] [stdout] 0278ac806b5aa02b6a1089eb71327af86b069ad0b567c0606fc25b6f5436e623
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7257ba99c3f536a3b7bc8283c07887b8dd48392d34788d04ece45e397146672b
[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" "7257ba99c3f536a3b7bc8283c07887b8dd48392d34788d04ece45e397146672b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling gcmodule_derive v0.3.3
[INFO] [stderr]    Compiling gcmodule v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.25s
[INFO] running `Command { std: "docker" "inspect" "7257ba99c3f536a3b7bc8283c07887b8dd48392d34788d04ece45e397146672b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7257ba99c3f536a3b7bc8283c07887b8dd48392d34788d04ece45e397146672b", kill_on_drop: false }`
[INFO] [stdout] 7257ba99c3f536a3b7bc8283c07887b8dd48392d34788d04ece45e397146672b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f8198ecf0cca801d2ca97a89a67fd504c4b7bc22dd13aab8ae66c9f0d12cbf4
[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" "5f8198ecf0cca801d2ca97a89a67fd504c4b7bc22dd13aab8ae66c9f0d12cbf4", kill_on_drop: false }`
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling gcmodule v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.24s
[INFO] running `Command { std: "docker" "inspect" "5f8198ecf0cca801d2ca97a89a67fd504c4b7bc22dd13aab8ae66c9f0d12cbf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f8198ecf0cca801d2ca97a89a67fd504c4b7bc22dd13aab8ae66c9f0d12cbf4", kill_on_drop: false }`
[INFO] [stdout] 5f8198ecf0cca801d2ca97a89a67fd504c4b7bc22dd13aab8ae66c9f0d12cbf4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9310d17fefe972f10a53273e6da577d04bba341b1b60575d3df3d05edcf7155d
[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" "9310d17fefe972f10a53273e6da577d04bba341b1b60575d3df3d05edcf7155d", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 23 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/gcmodule-e87afab788c0c100
[INFO] [stdout] test tests::test_2_object_cycle_with_another_outgoing_reference ... ok
[INFO] [stdout] test tests::test_2_object_cycle_with_another_incoming_reference ... ok
[INFO] [stdout] test cc::tests::test_gc_header_value ... ok
[INFO] [stdout] test tests::test_self_referential ... ok
[INFO] [stdout] test tests::test_3_object_cycle ... ok
[INFO] [stdout] test tests::test_simple_untracked ... ok
[INFO] [stdout] test tests::test_drop_by_ref_count ... ok
[INFO] [stdout] test tests::test_collect_multi_times ... ok
[INFO] [stdout] test tests::test_update_with ... ok
[INFO] [stdout] test trace_impls::tests::test_is_cyclic_type_tracked ... ok
[INFO] [stdout] test trace_impls::tests::test_is_type_tracked ... ok
[INFO] [stdout] test tests::test_simple_mixed_graph ... ok
[INFO] [stdout] test tests::test_simple_tracked ... ok
[INFO] [stdout] test tests::test_simple_non_trait_cycles ... ok
[INFO] [stdout] test tests::test_simple_cycles ... ok
[INFO] [stdout] test sync::tests::test_2_thread_cycle ... ok
[INFO] [stdout] test sync::tests::test_17_thread_cycle ... ok
[INFO] [stdout] test sync::tests::test_racy_threads_mixed_collects ... ok
[INFO] [stdout] test tests::test_quickcheck_16_vertex_graph ... ok
[INFO] [stdout] test sync::tests::test_racy_threads_drops ... ok
[INFO] [stdout] test tests::test_trace_impl_double_visits ... ok
[INFO] [stdout] test sync::tests::test_100_thread_cycle ... ok
[INFO] [stdout] test sync::tests::test_racy_threads_collects ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.07s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests gcmodule
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test src/sync/collect.rs - sync::collect::ThreadedObjectSpace::create (line 167) ... ok
[INFO] [stdout] test src/cc.rs - cc::Cc (line 68) ... ok
[INFO] [stdout] test src/lib.rs - (line 137) ... ok
[INFO] [stdout] test src/lib.rs - Trace (line 270) ... ok
[INFO] [stdout] test src/lib.rs - (line 35) ... ok
[INFO] [stdout] test src/collect.rs - collect::ObjectSpace (line 40) ... ok
[INFO] [stdout] test src/lib.rs - (line 18) ... ok
[INFO] [stdout] test src/lib.rs - (line 93) ... ok
[INFO] [stdout] test src/lib.rs - (line 119) ... ok
[INFO] [stdout] test src/lib.rs - (line 62) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.24s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9310d17fefe972f10a53273e6da577d04bba341b1b60575d3df3d05edcf7155d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9310d17fefe972f10a53273e6da577d04bba341b1b60575d3df3d05edcf7155d", kill_on_drop: false }`
[INFO] [stdout] 9310d17fefe972f10a53273e6da577d04bba341b1b60575d3df3d05edcf7155d