[INFO] cloning repository https://github.com/ityy/rust_study
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ityy/rust_study" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fityy%2Frust_study", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fityy%2Frust_study'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e8756fd6eb7d1122c156c85e59aef75e8d4cbf3f
[INFO] testing ityy/rust_study against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fityy%2Frust_study" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ityy/rust_study 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/ityy/rust_study
[INFO] finished tweaking git repo https://github.com/ityy/rust_study
[INFO] tweaked toml for git repo https://github.com/ityy/rust_study written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/ityy/rust_study already has a lockfile, it will not be regenerated
[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-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" "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] [stdout] de3377bd51b584b3166c10ba12c24d696a888887783562422f73c5e731305b33
[INFO] running `Command { std: "docker" "start" "-a" "de3377bd51b584b3166c10ba12c24d696a888887783562422f73c5e731305b33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de3377bd51b584b3166c10ba12c24d696a888887783562422f73c5e731305b33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de3377bd51b584b3166c10ba12c24d696a888887783562422f73c5e731305b33", kill_on_drop: false }`
[INFO] [stdout] de3377bd51b584b3166c10ba12c24d696a888887783562422f73c5e731305b33
[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" "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] a6204b147edb4086cd36c0d70bce451bdecbc6f3cc668f00fa67a31cab67ef4f
[INFO] running `Command { std: "docker" "start" "-a" "a6204b147edb4086cd36c0d70bce451bdecbc6f3cc668f00fa67a31cab67ef4f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_study v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `Command { std: "docker" "inspect" "a6204b147edb4086cd36c0d70bce451bdecbc6f3cc668f00fa67a31cab67ef4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6204b147edb4086cd36c0d70bce451bdecbc6f3cc668f00fa67a31cab67ef4f", kill_on_drop: false }`
[INFO] [stdout] a6204b147edb4086cd36c0d70bce451bdecbc6f3cc668f00fa67a31cab67ef4f
[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" "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] 91bd9b911cabbb36ecc93649d0645aba8bef6848c78ac619ed34130658b376f0
[INFO] running `Command { std: "docker" "start" "-a" "91bd9b911cabbb36ecc93649d0645aba8bef6848c78ac619ed34130658b376f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_study v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "91bd9b911cabbb36ecc93649d0645aba8bef6848c78ac619ed34130658b376f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91bd9b911cabbb36ecc93649d0645aba8bef6848c78ac619ed34130658b376f0", kill_on_drop: false }`
[INFO] [stdout] 91bd9b911cabbb36ecc93649d0645aba8bef6848c78ac619ed34130658b376f0
[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" "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] adf2851cef3cc1c3f16ed588435e098a9c57110ae4015706126f4e4d8fdf4187
[INFO] running `Command { std: "docker" "start" "-a" "adf2851cef3cc1c3f16ed588435e098a9c57110ae4015706126f4e4d8fdf4187", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.60s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_study-7e093c4de04dca7d)
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test into_from_test::test_into ... ok
[INFO] [stdout] test memory_and_pointer_test::t03_box_memory_test::heap_memory_box_test ... ok
[INFO] [stdout] test pattern_test::test2 ... ok
[INFO] [stdout] test data_structure::queue_study::main ... ok
[INFO] [stdout] test memory_and_pointer_test::t06_memory_leak::drop_info_test ... ok
[INFO] [stdout] test pattern_test::test1 ... ok
[INFO] [stdout] test memory_and_pointer_test::t01_name_identifier_variable::find_shadowed_resource ... ok
[INFO] [stdout] test memory_and_pointer_test::t04_memory_free_and_memory_overflow::drop_function_test ... ok
[INFO] [stdout] test memory_and_pointer_test::t02_raw_pointer::memory_stack_test ... ok
[INFO] [stdout] test memory_and_pointer_test::t01_name_identifier_variable::who_create_stack_address ... ok
[INFO] [stdout] test memory_and_pointer_test::pass_by_value_or_pass_by_ref::pass_by_value ... ok
[INFO] [stdout] test memory_and_pointer_test::t05_dangling_pointer::solve_null_pointer ... ok
[INFO] [stdout] test memory_and_pointer_test::t05_dangling_pointer::test_null_pointer ... ok
[INFO] [stdout] test data_structure::stack_study::main ... ok
[INFO] [stdout] test memory_and_pointer_test::t06_memory_leak::test ... ok
[INFO] [stdout] test data_structure::list_study::main ... ok
[INFO] [stdout] test lock_test::mutex_test::test ... ok
[INFO] [stdout] test memory_and_pointer_test::t02_raw_pointer::test_ampersand ... ok
[INFO] [stdout] test memory_and_pointer_test::t02_raw_pointer::ref_ptf_test ... ok
[INFO] [stdout] test memory_and_pointer_test::t03_box_memory_test::box_int_test ... ok
[INFO] [stdout] test memory_and_pointer_test::pass_by_value_or_pass_by_ref::pass_by_ref ... ok
[INFO] [stdout] test memory_and_pointer_test::t02_raw_pointer::memory_heap ... ok
[INFO] [stdout] test memory_and_pointer_test::t07_temporary_memory_address::temp_memory_addr ... ok
[INFO] [stdout] test lock_test::mutex_test::test2 has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "adf2851cef3cc1c3f16ed588435e098a9c57110ae4015706126f4e4d8fdf4187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adf2851cef3cc1c3f16ed588435e098a9c57110ae4015706126f4e4d8fdf4187", kill_on_drop: false }`
[INFO] [stdout] adf2851cef3cc1c3f16ed588435e098a9c57110ae4015706126f4e4d8fdf4187