[INFO] cloning repository https://github.com/Shaistaaman/check
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Shaistaaman/check" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShaistaaman%2Fcheck", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShaistaaman%2Fcheck'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f457f9cb16087192b9fa3c79cac175411fe0bb2b
[INFO] testing Shaistaaman/check against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShaistaaman%2Fcheck" "/workspace/builds/worker-71/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-71/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Shaistaaman/check 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/Shaistaaman/check
[INFO] finished tweaking git repo https://github.com/Shaistaaman/check
[INFO] tweaked toml for git repo https://github.com/Shaistaaman/check written to /workspace/builds/worker-71/source/Cargo.toml
[INFO] crate git repo https://github.com/Shaistaaman/check 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-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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] d6bc26e564c387e57c0d9ebe5ae6b934ec484c76532b59ba4c609a3f35aa12e9
[INFO] running `Command { std: "docker" "start" "-a" "d6bc26e564c387e57c0d9ebe5ae6b934ec484c76532b59ba4c609a3f35aa12e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6bc26e564c387e57c0d9ebe5ae6b934ec484c76532b59ba4c609a3f35aa12e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6bc26e564c387e57c0d9ebe5ae6b934ec484c76532b59ba4c609a3f35aa12e9", kill_on_drop: false }`
[INFO] [stdout] d6bc26e564c387e57c0d9ebe5ae6b934ec484c76532b59ba4c609a3f35aa12e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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] 147213c338332625417e7eb17abe39ded4d3f1a5e550bfceced9e1ade524b54e
[INFO] running `Command { std: "docker" "start" "-a" "147213c338332625417e7eb17abe39ded4d3f1a5e550bfceced9e1ade524b54e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling matchingguess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 19s
[INFO] running `Command { std: "docker" "inspect" "147213c338332625417e7eb17abe39ded4d3f1a5e550bfceced9e1ade524b54e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "147213c338332625417e7eb17abe39ded4d3f1a5e550bfceced9e1ade524b54e", kill_on_drop: false }`
[INFO] [stdout] 147213c338332625417e7eb17abe39ded4d3f1a5e550bfceced9e1ade524b54e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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] 83c253e4bf3ed30964e96cb7f34f7d43777cab2cc311340ecbda4c745939ef64
[INFO] running `Command { std: "docker" "start" "-a" "83c253e4bf3ed30964e96cb7f34f7d43777cab2cc311340ecbda4c745939ef64", kill_on_drop: false }`
[INFO] [stderr]    Compiling matchingguess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "83c253e4bf3ed30964e96cb7f34f7d43777cab2cc311340ecbda4c745939ef64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83c253e4bf3ed30964e96cb7f34f7d43777cab2cc311340ecbda4c745939ef64", kill_on_drop: false }`
[INFO] [stdout] 83c253e4bf3ed30964e96cb7f34f7d43777cab2cc311340ecbda4c745939ef64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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] b66ffdb26c337045e1b97350013046505f3881d9a824444868a2bbafd0060cfe
[INFO] running `Command { std: "docker" "start" "-a" "b66ffdb26c337045e1b97350013046505f3881d9a824444868a2bbafd0060cfe", 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/matchingguess-47f9d0bc47106537)
[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" "b66ffdb26c337045e1b97350013046505f3881d9a824444868a2bbafd0060cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b66ffdb26c337045e1b97350013046505f3881d9a824444868a2bbafd0060cfe", kill_on_drop: false }`
[INFO] [stdout] b66ffdb26c337045e1b97350013046505f3881d9a824444868a2bbafd0060cfe