[INFO] cloning repository https://github.com/udoprog/checkers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/udoprog/checkers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fudoprog%2Fcheckers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fudoprog%2Fcheckers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a6e732c0dac65432bfa066f766a897ce880c96d4
[INFO] testing udoprog/checkers against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fudoprog%2Fcheckers" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/udoprog/checkers on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/udoprog/checkers
[INFO] finished tweaking git repo https://github.com/udoprog/checkers
[INFO] tweaked toml for git repo https://github.com/udoprog/checkers written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.55.0" "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] 548a32455587b2f837b587c793176ca4b3fc1bbe9e6296b76bec2e61f5607be1
[INFO] running `Command { std: "docker" "start" "-a" "548a32455587b2f837b587c793176ca4b3fc1bbe9e6296b76bec2e61f5607be1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "548a32455587b2f837b587c793176ca4b3fc1bbe9e6296b76bec2e61f5607be1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "548a32455587b2f837b587c793176ca4b3fc1bbe9e6296b76bec2e61f5607be1", kill_on_drop: false }`
[INFO] [stdout] 548a32455587b2f837b587c793176ca4b3fc1bbe9e6296b76bec2e61f5607be1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc1fee9fc938786199f0eed3c56d7cd10932f3ef8470228b631a689e97543348
[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" "dc1fee9fc938786199f0eed3c56d7cd10932f3ef8470228b631a689e97543348", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling checkers-macros v0.6.0 (/opt/rustwide/workdir/macros)
[INFO] [stderr]    Compiling checkers v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.63s
[INFO] running `Command { std: "docker" "inspect" "dc1fee9fc938786199f0eed3c56d7cd10932f3ef8470228b631a689e97543348", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc1fee9fc938786199f0eed3c56d7cd10932f3ef8470228b631a689e97543348", kill_on_drop: false }`
[INFO] [stdout] dc1fee9fc938786199f0eed3c56d7cd10932f3ef8470228b631a689e97543348
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 484189107b6bdd3e9146580af974f49f9ff81936f560fd54ea4d09d00b8b0253
[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" "484189107b6bdd3e9146580af974f49f9ff81936f560fd54ea4d09d00b8b0253", kill_on_drop: false }`
[INFO] [stderr]    Compiling checkers v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.32s
[INFO] running `Command { std: "docker" "inspect" "484189107b6bdd3e9146580af974f49f9ff81936f560fd54ea4d09d00b8b0253", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "484189107b6bdd3e9146580af974f49f9ff81936f560fd54ea4d09d00b8b0253", kill_on_drop: false }`
[INFO] [stdout] 484189107b6bdd3e9146580af974f49f9ff81936f560fd54ea4d09d00b8b0253
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 01e43d246914d332d794caa82276f6c1fde3c3fe2ded3edd227f4ac8bf1dd854
[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" "01e43d246914d332d794caa82276f6c1fde3c3fe2ded3edd227f4ac8bf1dd854", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/checkers-95e3f0277d601fdd)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/diagnostics_tests.rs (/opt/rustwide/target/debug/deps/diagnostics_tests-f7144fbb9c8d1291)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/events_tests.rs (/opt/rustwide/target/debug/deps/events_tests-02f1449b808d1727)
[INFO] [stdout] test test_event_inspection ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/failed_tests.rs (/opt/rustwide/target/debug/deps/failed_tests-988c0942f4a6c1a9)
[INFO] [stdout] test events_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_failed_alloc_zeroed ... ok
[INFO] [stderr]      Running tests/leaky_tests.rs (/opt/rustwide/target/debug/deps/leaky_tests-d3da23aa2e7d3e0b)
[INFO] [stdout] test test_failed_alloc ... ok
[INFO] [stdout] test test_failed_realloc ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_non_leak_box ... ok
[INFO] [stdout] test test_custom_verify ... ok
[INFO] [stderr]      Running tests/realloc_tests.rs (/opt/rustwide/target/debug/deps/realloc_tests-059ea7d12aac747b)
[INFO] [stdout] test test_leak_box - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/zeroed_tests.rs (/opt/rustwide/target/debug/deps/zeroed_tests-d107df0b4a6a7754)
[INFO] [stdout] test test_realloc ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests checkers
[INFO] [stdout] test test_realloc ... 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 23 tests
[INFO] [stdout] test src/allocator.rs - allocator::Allocator (line 13) - compile ... ok
[INFO] [stdout] test src/event.rs - event::Event::is_alloc_zeroed_with (line 86) ... ok
[INFO] [stdout] test src/events.rs - events::Events::max_memory_used (line 183) ... ok
[INFO] [stdout] test src/event.rs - event::Event::is_free_with (line 62) ... ok
[INFO] [stdout] test src/events.rs - events::Events::allocs (line 86) ... ok
[INFO] [stdout] test src/lib.rs - is_muted (line 173) ... ok
[INFO] [stdout] test src/allocator.rs - allocator::Allocator<System>::system (line 40) ... ok
[INFO] [stdout] test src/event.rs - event::Event::is_alloc_with (line 36) ... ok
[INFO] [stdout] test src/events.rs - events::Events::push (line 62) ... ok
[INFO] [stdout] test src/event.rs - event::Event::is_realloc_with (line 112) ... ok
[INFO] [stdout] test src/lib.rs - (line 76) ... ok
[INFO] [stdout] test src/event.rs - event::Event::is_failed (line 138) ... ok
[INFO] [stdout] test src/allocator.rs - allocator::Allocator<T>::new (line 26) ... ok
[INFO] [stdout] test src/machine.rs - machine::Machine::push (line 69) ... ok
[INFO] [stdout] test src/lib.rs - (line 96) ... ok
[INFO] [stdout] test src/machine.rs - machine::Machine::push (line 101) ... ok
[INFO] [stdout] test src/events.rs - events::Events::reallocs (line 110) ... ok
[INFO] [stdout] test src/events.rs - events::Events::frees (line 138) ... ok
[INFO] [stdout] test src/lib.rs - verify (line 274) ... ok
[INFO] [stdout] test src/machine.rs - machine::Machine::push (line 86) ... ok
[INFO] [stdout] test src/lib.rs - with_muted (line 228) ... ok
[INFO] [stdout] test src/violation.rs - violation::Violation::is_leaked_with (line 75) ... ok
[INFO] [stdout] test src/lib.rs - with (line 330) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.82s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "01e43d246914d332d794caa82276f6c1fde3c3fe2ded3edd227f4ac8bf1dd854", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01e43d246914d332d794caa82276f6c1fde3c3fe2ded3edd227f4ac8bf1dd854", kill_on_drop: false }`
[INFO] [stdout] 01e43d246914d332d794caa82276f6c1fde3c3fe2ded3edd227f4ac8bf1dd854