[INFO] cloning repository https://github.com/huseyinyilmaz/rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/huseyinyilmaz/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuseyinyilmaz%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuseyinyilmaz%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 658e4fb5abff7a9be5d7950e7845639e07780eb3
[INFO] testing huseyinyilmaz/rust-playground against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuseyinyilmaz%2Frust-playground" "/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/huseyinyilmaz/rust-playground 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/huseyinyilmaz/rust-playground
[INFO] finished tweaking git repo https://github.com/huseyinyilmaz/rust-playground
[INFO] tweaked toml for git repo https://github.com/huseyinyilmaz/rust-playground written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/huseyinyilmaz/rust-playground 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded aho-corasick v0.7.8
[INFO] [stderr]   Downloaded regex v1.3.4
[INFO] [stderr]   Downloaded headers v0.3.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.14
[INFO] [stderr]   Downloaded warp v0.2.1
[INFO] [stderr]   Downloaded tokio-macros v0.2.4
[INFO] [stderr]   Downloaded tokio v0.2.11
[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] [stdout] 63ae8a633c5bcc541a92a12305ac3f8fe3ee390e2726426bac41cbfb2e8914d3
[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" "63ae8a633c5bcc541a92a12305ac3f8fe3ee390e2726426bac41cbfb2e8914d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63ae8a633c5bcc541a92a12305ac3f8fe3ee390e2726426bac41cbfb2e8914d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63ae8a633c5bcc541a92a12305ac3f8fe3ee390e2726426bac41cbfb2e8914d3", kill_on_drop: false }`
[INFO] [stdout] 63ae8a633c5bcc541a92a12305ac3f8fe3ee390e2726426bac41cbfb2e8914d3
[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] b4f7c5e90bac1eb945b8e0d2644e578064a2ce6ef4ede40e079b1e0c2c5f5094
[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" "b4f7c5e90bac1eb945b8e0d2644e578064a2ce6ef4ede40e079b1e0c2c5f5094", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling futures-task v0.3.4
[INFO] [stderr]    Compiling regex-syntax v0.6.14
[INFO] [stderr]    Compiling futures-io v0.3.4
[INFO] [stderr]    Compiling headers-core v0.2.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling aho-corasick v0.7.8
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling buf_redux v0.8.4
[INFO] [stderr]    Compiling twoway v0.1.8
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling serde_json v1.0.48
[INFO] [stderr]    Compiling sha-1 v0.8.2
[INFO] [stderr]    Compiling chrono v0.4.10
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling headers v0.3.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling input_buffer v0.2.0
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v1.8.7
[INFO] [stderr]    Compiling futures v0.3.4
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling regex v1.3.4
[INFO] [stderr]    Compiling tungstenite v0.9.2
[INFO] [stderr]    Compiling multipart v0.16.1
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling pretty_env_logger v0.3.1
[INFO] [stderr]    Compiling tokio-macros v0.2.4
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]    Compiling tokio v0.2.11
[INFO] [stderr]    Compiling pin-project v0.4.8
[INFO] [stderr]    Compiling tokio-util v0.2.0
[INFO] [stderr]    Compiling h2 v0.2.1
[INFO] [stderr]    Compiling hyper v0.13.2
[INFO] [stderr]    Compiling warp v0.2.1
[INFO] [stderr]    Compiling rust-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 48s
[INFO] running `Command { std: "docker" "inspect" "b4f7c5e90bac1eb945b8e0d2644e578064a2ce6ef4ede40e079b1e0c2c5f5094", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4f7c5e90bac1eb945b8e0d2644e578064a2ce6ef4ede40e079b1e0c2c5f5094", kill_on_drop: false }`
[INFO] [stdout] b4f7c5e90bac1eb945b8e0d2644e578064a2ce6ef4ede40e079b1e0c2c5f5094
[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] 761565251f5e4ac6f445d1538835209ffed42be0b0300925be1311ba37fd5aed
[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" "761565251f5e4ac6f445d1538835209ffed42be0b0300925be1311ba37fd5aed", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.60s
[INFO] running `Command { std: "docker" "inspect" "761565251f5e4ac6f445d1538835209ffed42be0b0300925be1311ba37fd5aed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "761565251f5e4ac6f445d1538835209ffed42be0b0300925be1311ba37fd5aed", kill_on_drop: false }`
[INFO] [stdout] 761565251f5e4ac6f445d1538835209ffed42be0b0300925be1311ba37fd5aed
[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] 0060d4bd3b44f39e3926af593f28c0eb58d9af5fc128d17815a4b673d8bbdf50
[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" "0060d4bd3b44f39e3926af593f28c0eb58d9af5fc128d17815a4b673d8bbdf50", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/first_duplicate01-995e61e013e869c7)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/warp_test01-8cac269c55203641)
[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 unittests (/opt/rustwide/target/debug/deps/warp_test_02-608d0a5e7ed65c7f)
[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] [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] running `Command { std: "docker" "inspect" "0060d4bd3b44f39e3926af593f28c0eb58d9af5fc128d17815a4b673d8bbdf50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0060d4bd3b44f39e3926af593f28c0eb58d9af5fc128d17815a4b673d8bbdf50", kill_on_drop: false }`
[INFO] [stdout] 0060d4bd3b44f39e3926af593f28c0eb58d9af5fc128d17815a4b673d8bbdf50