[INFO] cloning repository https://github.com/RustExamples/variables_and_mutability
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RustExamples/variables_and_mutability" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRustExamples%2Fvariables_and_mutability", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRustExamples%2Fvariables_and_mutability'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c3f53b3fc1212a4c049dbdcf82dfa17d808097b4
[INFO] testing RustExamples/variables_and_mutability against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRustExamples%2Fvariables_and_mutability" "/workspace/builds/worker-83/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-83/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RustExamples/variables_and_mutability on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RustExamples/variables_and_mutability
[INFO] finished tweaking git repo https://github.com/RustExamples/variables_and_mutability
[INFO] tweaked toml for git repo https://github.com/RustExamples/variables_and_mutability written to /workspace/builds/worker-83/source/Cargo.toml
[INFO] crate git repo https://github.com/RustExamples/variables_and_mutability already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51f6383e6a55e60959ffe36a62f54ff152208e04d0cf33516baef40d64109ad9
[INFO] running `Command { std: "docker" "start" "-a" "51f6383e6a55e60959ffe36a62f54ff152208e04d0cf33516baef40d64109ad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51f6383e6a55e60959ffe36a62f54ff152208e04d0cf33516baef40d64109ad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51f6383e6a55e60959ffe36a62f54ff152208e04d0cf33516baef40d64109ad9", kill_on_drop: false }`
[INFO] [stdout] 51f6383e6a55e60959ffe36a62f54ff152208e04d0cf33516baef40d64109ad9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d53d0a43aec34e1bc7a5fdf44a29bf8f8fde16c9172edb226c3667a43700b9f
[INFO] running `Command { std: "docker" "start" "-a" "2d53d0a43aec34e1bc7a5fdf44a29bf8f8fde16c9172edb226c3667a43700b9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling variables_and_mutability v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "2d53d0a43aec34e1bc7a5fdf44a29bf8f8fde16c9172edb226c3667a43700b9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d53d0a43aec34e1bc7a5fdf44a29bf8f8fde16c9172edb226c3667a43700b9f", kill_on_drop: false }`
[INFO] [stdout] 2d53d0a43aec34e1bc7a5fdf44a29bf8f8fde16c9172edb226c3667a43700b9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26a18edeafac111cbd4418d02a440a9cac6705cdae157a1b01bc96912504acb0
[INFO] running `Command { std: "docker" "start" "-a" "26a18edeafac111cbd4418d02a440a9cac6705cdae157a1b01bc96912504acb0", kill_on_drop: false }`
[INFO] [stderr]    Compiling variables_and_mutability v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "26a18edeafac111cbd4418d02a440a9cac6705cdae157a1b01bc96912504acb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26a18edeafac111cbd4418d02a440a9cac6705cdae157a1b01bc96912504acb0", kill_on_drop: false }`
[INFO] [stdout] 26a18edeafac111cbd4418d02a440a9cac6705cdae157a1b01bc96912504acb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5758d074e6286fb987d1d45eb0de2dcddffc9db17360b091add702bf81367569
[INFO] running `Command { std: "docker" "start" "-a" "5758d074e6286fb987d1d45eb0de2dcddffc9db17360b091add702bf81367569", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/variables_and_mutability-e9e142b07e12ec4e)
[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" "5758d074e6286fb987d1d45eb0de2dcddffc9db17360b091add702bf81367569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5758d074e6286fb987d1d45eb0de2dcddffc9db17360b091add702bf81367569", kill_on_drop: false }`
[INFO] [stdout] 5758d074e6286fb987d1d45eb0de2dcddffc9db17360b091add702bf81367569