[INFO] cloning repository https://github.com/pjzhong/rust_practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pjzhong/rust_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpjzhong%2Frust_practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpjzhong%2Frust_practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 542a3a5a9bb6029a845737093d03c03b0321f137
[INFO] testing pjzhong/rust_practice against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpjzhong%2Frust_practice" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pjzhong/rust_practice on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pjzhong/rust_practice
[INFO] finished tweaking git repo https://github.com/pjzhong/rust_practice
[INFO] tweaked toml for git repo https://github.com/pjzhong/rust_practice written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/pjzhong/rust_practice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1df57dc74d29a183b09e1d6acf3869cd37dfb7aed78a18dc09dea7c40e15fffa
[INFO] running `Command { std: "docker" "start" "-a" "1df57dc74d29a183b09e1d6acf3869cd37dfb7aed78a18dc09dea7c40e15fffa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1df57dc74d29a183b09e1d6acf3869cd37dfb7aed78a18dc09dea7c40e15fffa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1df57dc74d29a183b09e1d6acf3869cd37dfb7aed78a18dc09dea7c40e15fffa", kill_on_drop: false }`
[INFO] [stdout] 1df57dc74d29a183b09e1d6acf3869cd37dfb7aed78a18dc09dea7c40e15fffa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 299b3b5a24fc5d81ef6e903d7a8a703deb63bd1b46a3a94295f26b9f5197ad85
[INFO] running `Command { std: "docker" "start" "-a" "299b3b5a24fc5d81ef6e903d7a8a703deb63bd1b46a3a94295f26b9f5197ad85", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "299b3b5a24fc5d81ef6e903d7a8a703deb63bd1b46a3a94295f26b9f5197ad85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "299b3b5a24fc5d81ef6e903d7a8a703deb63bd1b46a3a94295f26b9f5197ad85", kill_on_drop: false }`
[INFO] [stdout] 299b3b5a24fc5d81ef6e903d7a8a703deb63bd1b46a3a94295f26b9f5197ad85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41497f2eb92b139f10a6671f068f2bf5a120496d5be59571681bd693fde54768
[INFO] running `Command { std: "docker" "start" "-a" "41497f2eb92b139f10a6671f068f2bf5a120496d5be59571681bd693fde54768", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "41497f2eb92b139f10a6671f068f2bf5a120496d5be59571681bd693fde54768", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41497f2eb92b139f10a6671f068f2bf5a120496d5be59571681bd693fde54768", kill_on_drop: false }`
[INFO] [stdout] 41497f2eb92b139f10a6671f068f2bf5a120496d5be59571681bd693fde54768
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 145aa33a0cd93809e1487e7a098c343ae7341377425bf9d8473cba2e89b586f6
[INFO] running `Command { std: "docker" "start" "-a" "145aa33a0cd93809e1487e7a098c343ae7341377425bf9d8473cba2e89b586f6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_practice-7c69ecfc665629c9)
[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" "145aa33a0cd93809e1487e7a098c343ae7341377425bf9d8473cba2e89b586f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "145aa33a0cd93809e1487e7a098c343ae7341377425bf9d8473cba2e89b586f6", kill_on_drop: false }`
[INFO] [stdout] 145aa33a0cd93809e1487e7a098c343ae7341377425bf9d8473cba2e89b586f6