[INFO] cloning repository https://github.com/yujishenlan/RustStudyPrograms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yujishenlan/RustStudyPrograms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyujishenlan%2FRustStudyPrograms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyujishenlan%2FRustStudyPrograms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 185e299cb6c8286a41f04bf8e7145c6f9231eb9a
[INFO] testing yujishenlan/RustStudyPrograms against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyujishenlan%2FRustStudyPrograms" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yujishenlan/RustStudyPrograms 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/yujishenlan/RustStudyPrograms
[INFO] finished tweaking git repo https://github.com/yujishenlan/RustStudyPrograms
[INFO] tweaked toml for git repo https://github.com/yujishenlan/RustStudyPrograms written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/yujishenlan/RustStudyPrograms 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-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" "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] 34aab78fd0d36505c3fd41c1e5e9d19e4faac1ad3e0b05c3231fe155b5c121ec
[INFO] running `Command { std: "docker" "start" "-a" "34aab78fd0d36505c3fd41c1e5e9d19e4faac1ad3e0b05c3231fe155b5c121ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34aab78fd0d36505c3fd41c1e5e9d19e4faac1ad3e0b05c3231fe155b5c121ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34aab78fd0d36505c3fd41c1e5e9d19e4faac1ad3e0b05c3231fe155b5c121ec", kill_on_drop: false }`
[INFO] [stdout] 34aab78fd0d36505c3fd41c1e5e9d19e4faac1ad3e0b05c3231fe155b5c121ec
[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" "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] 2407f541c4a49ec1c3b37fb7db5fb7204b22313071140671398ee8e7b35737c1
[INFO] running `Command { std: "docker" "start" "-a" "2407f541c4a49ec1c3b37fb7db5fb7204b22313071140671398ee8e7b35737c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_study_program v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.44s
[INFO] running `Command { std: "docker" "inspect" "2407f541c4a49ec1c3b37fb7db5fb7204b22313071140671398ee8e7b35737c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2407f541c4a49ec1c3b37fb7db5fb7204b22313071140671398ee8e7b35737c1", kill_on_drop: false }`
[INFO] [stdout] 2407f541c4a49ec1c3b37fb7db5fb7204b22313071140671398ee8e7b35737c1
[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" "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] a84a3c3251f5c91f701a9fc834fa4ffb0609dcbef10293649945e210e2a15997
[INFO] running `Command { std: "docker" "start" "-a" "a84a3c3251f5c91f701a9fc834fa4ffb0609dcbef10293649945e210e2a15997", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_study_program v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "a84a3c3251f5c91f701a9fc834fa4ffb0609dcbef10293649945e210e2a15997", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a84a3c3251f5c91f701a9fc834fa4ffb0609dcbef10293649945e210e2a15997", kill_on_drop: false }`
[INFO] [stdout] a84a3c3251f5c91f701a9fc834fa4ffb0609dcbef10293649945e210e2a15997
[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" "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] 2d01e561d6cd010e800391dd1c9e0f06fea8b10aa5820ab47804f238d4aff047
[INFO] running `Command { std: "docker" "start" "-a" "2d01e561d6cd010e800391dd1c9e0f06fea8b10aa5820ab47804f238d4aff047", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_study_program-3f7308f84f15926d)
[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" "2d01e561d6cd010e800391dd1c9e0f06fea8b10aa5820ab47804f238d4aff047", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d01e561d6cd010e800391dd1c9e0f06fea8b10aa5820ab47804f238d4aff047", kill_on_drop: false }`
[INFO] [stdout] 2d01e561d6cd010e800391dd1c9e0f06fea8b10aa5820ab47804f238d4aff047