[INFO] cloning repository https://github.com/Parasgupta44/rust-prac-snippets
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Parasgupta44/rust-prac-snippets" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FParasgupta44%2Frust-prac-snippets", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FParasgupta44%2Frust-prac-snippets'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5c5d5e24c8ca3aca3cfde2a268dabb88bbf4e4da
[INFO] testing Parasgupta44/rust-prac-snippets 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%2FParasgupta44%2Frust-prac-snippets" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Parasgupta44/rust-prac-snippets 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/Parasgupta44/rust-prac-snippets
[INFO] finished tweaking git repo https://github.com/Parasgupta44/rust-prac-snippets
[INFO] tweaked toml for git repo https://github.com/Parasgupta44/rust-prac-snippets written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Parasgupta44/rust-prac-snippets 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 85e9bc7fe4fa79b0d4ae002861e2c47394470a721d8c263b0bd45eb046c3841e
[INFO] running `Command { std: "docker" "start" "-a" "85e9bc7fe4fa79b0d4ae002861e2c47394470a721d8c263b0bd45eb046c3841e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85e9bc7fe4fa79b0d4ae002861e2c47394470a721d8c263b0bd45eb046c3841e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85e9bc7fe4fa79b0d4ae002861e2c47394470a721d8c263b0bd45eb046c3841e", kill_on_drop: false }`
[INFO] [stdout] 85e9bc7fe4fa79b0d4ae002861e2c47394470a721d8c263b0bd45eb046c3841e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 0e2d7ba37f90d952698aecc2570825d2f4b04478a21e940582b9104d85d12443
[INFO] running `Command { std: "docker" "start" "-a" "0e2d7ba37f90d952698aecc2570825d2f4b04478a21e940582b9104d85d12443", kill_on_drop: false }`
[INFO] [stderr]    Compiling play_ground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "0e2d7ba37f90d952698aecc2570825d2f4b04478a21e940582b9104d85d12443", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e2d7ba37f90d952698aecc2570825d2f4b04478a21e940582b9104d85d12443", kill_on_drop: false }`
[INFO] [stdout] 0e2d7ba37f90d952698aecc2570825d2f4b04478a21e940582b9104d85d12443
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 13bbfe5ba54901886c3a77c2be2ea861d06e5e7e1055571fa904ad2ad93a5f49
[INFO] running `Command { std: "docker" "start" "-a" "13bbfe5ba54901886c3a77c2be2ea861d06e5e7e1055571fa904ad2ad93a5f49", kill_on_drop: false }`
[INFO] [stderr]    Compiling play_ground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "13bbfe5ba54901886c3a77c2be2ea861d06e5e7e1055571fa904ad2ad93a5f49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13bbfe5ba54901886c3a77c2be2ea861d06e5e7e1055571fa904ad2ad93a5f49", kill_on_drop: false }`
[INFO] [stdout] 13bbfe5ba54901886c3a77c2be2ea861d06e5e7e1055571fa904ad2ad93a5f49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 612ef06e9c9e69bd10f990f924b7c74d01116020c91c1f564937c44f5ab6146b
[INFO] running `Command { std: "docker" "start" "-a" "612ef06e9c9e69bd10f990f924b7c74d01116020c91c1f564937c44f5ab6146b", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/play_ground-00de46d76ac8279c)
[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" "612ef06e9c9e69bd10f990f924b7c74d01116020c91c1f564937c44f5ab6146b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "612ef06e9c9e69bd10f990f924b7c74d01116020c91c1f564937c44f5ab6146b", kill_on_drop: false }`
[INFO] [stdout] 612ef06e9c9e69bd10f990f924b7c74d01116020c91c1f564937c44f5ab6146b