[INFO] cloning repository https://github.com/benjaminlai/rust-sandbox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/benjaminlai/rust-sandbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenjaminlai%2Frust-sandbox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenjaminlai%2Frust-sandbox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e060385e3d46cd8a9f2379430559a054c32d591f
[INFO] testing benjaminlai/rust-sandbox against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenjaminlai%2Frust-sandbox" "/workspace/builds/worker-111/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-111/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/benjaminlai/rust-sandbox on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/benjaminlai/rust-sandbox
[INFO] finished tweaking git repo https://github.com/benjaminlai/rust-sandbox
[INFO] tweaked toml for git repo https://github.com/benjaminlai/rust-sandbox written to /workspace/builds/worker-111/source/Cargo.toml
[INFO] crate git repo https://github.com/benjaminlai/rust-sandbox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 578d5d7db84827a3b107ef14a96b37b1240831c668495dbd164f4165128fbbd2
[INFO] running `Command { std: "docker" "start" "-a" "578d5d7db84827a3b107ef14a96b37b1240831c668495dbd164f4165128fbbd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "578d5d7db84827a3b107ef14a96b37b1240831c668495dbd164f4165128fbbd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "578d5d7db84827a3b107ef14a96b37b1240831c668495dbd164f4165128fbbd2", kill_on_drop: false }`
[INFO] [stdout] 578d5d7db84827a3b107ef14a96b37b1240831c668495dbd164f4165128fbbd2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ecd7e8fc87bc3638642034359f09509c5b46f4cbd1b5c1c24d893d23aeee6b8
[INFO] running `Command { std: "docker" "start" "-a" "3ecd7e8fc87bc3638642034359f09509c5b46f4cbd1b5c1c24d893d23aeee6b8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.46s
[INFO] running `Command { std: "docker" "inspect" "3ecd7e8fc87bc3638642034359f09509c5b46f4cbd1b5c1c24d893d23aeee6b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ecd7e8fc87bc3638642034359f09509c5b46f4cbd1b5c1c24d893d23aeee6b8", kill_on_drop: false }`
[INFO] [stdout] 3ecd7e8fc87bc3638642034359f09509c5b46f4cbd1b5c1c24d893d23aeee6b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfdb931c11fc7334d92e3aeecbc0bf007ff009702a740c86d58402244e5e8f72
[INFO] running `Command { std: "docker" "start" "-a" "cfdb931c11fc7334d92e3aeecbc0bf007ff009702a740c86d58402244e5e8f72", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.61s
[INFO] running `Command { std: "docker" "inspect" "cfdb931c11fc7334d92e3aeecbc0bf007ff009702a740c86d58402244e5e8f72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfdb931c11fc7334d92e3aeecbc0bf007ff009702a740c86d58402244e5e8f72", kill_on_drop: false }`
[INFO] [stdout] cfdb931c11fc7334d92e3aeecbc0bf007ff009702a740c86d58402244e5e8f72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 85038e5935bdab6f9991e9a1fc66f7ffc2ad2fab2f58e60cb407c57511f95d9c
[INFO] running `Command { std: "docker" "start" "-a" "85038e5935bdab6f9991e9a1fc66f7ffc2ad2fab2f58e60cb407c57511f95d9c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_sandbox-b54fa13fabffe7f0)
[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" "85038e5935bdab6f9991e9a1fc66f7ffc2ad2fab2f58e60cb407c57511f95d9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85038e5935bdab6f9991e9a1fc66f7ffc2ad2fab2f58e60cb407c57511f95d9c", kill_on_drop: false }`
[INFO] [stdout] 85038e5935bdab6f9991e9a1fc66f7ffc2ad2fab2f58e60cb407c57511f95d9c