[INFO] cloning repository https://github.com/dbuchacher/challenges
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dbuchacher/challenges" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbuchacher%2Fchallenges", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbuchacher%2Fchallenges'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d08f5a6e145b90833d6268019d499e059d7cdeee
[INFO] testing dbuchacher/challenges against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbuchacher%2Fchallenges" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
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Updating files: 100% (1187/1187), done.
[INFO] validating manifest of git repo https://github.com/dbuchacher/challenges on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dbuchacher/challenges
[INFO] finished tweaking git repo https://github.com/dbuchacher/challenges
[INFO] tweaked toml for git repo https://github.com/dbuchacher/challenges written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/dbuchacher/challenges already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 841a3b8fc922ba4e07f024904053460d3249156376141f3aad7c7bc70ed5f723
[INFO] running `Command { std: "docker" "start" "-a" "841a3b8fc922ba4e07f024904053460d3249156376141f3aad7c7bc70ed5f723", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "841a3b8fc922ba4e07f024904053460d3249156376141f3aad7c7bc70ed5f723", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "841a3b8fc922ba4e07f024904053460d3249156376141f3aad7c7bc70ed5f723", kill_on_drop: false }`
[INFO] [stdout] 841a3b8fc922ba4e07f024904053460d3249156376141f3aad7c7bc70ed5f723
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81c62fb7adf176fed3c89cec2d0f73b07a17f9f1ab437207927d8b190c64dd96
[INFO] running `Command { std: "docker" "start" "-a" "81c62fb7adf176fed3c89cec2d0f73b07a17f9f1ab437207927d8b190c64dd96", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling challenges v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "81c62fb7adf176fed3c89cec2d0f73b07a17f9f1ab437207927d8b190c64dd96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81c62fb7adf176fed3c89cec2d0f73b07a17f9f1ab437207927d8b190c64dd96", kill_on_drop: false }`
[INFO] [stdout] 81c62fb7adf176fed3c89cec2d0f73b07a17f9f1ab437207927d8b190c64dd96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4102089a0ad754d9f7c6d583e96c734fe27fe8b217eafa8e85a6c00d56b270dd
[INFO] running `Command { std: "docker" "start" "-a" "4102089a0ad754d9f7c6d583e96c734fe27fe8b217eafa8e85a6c00d56b270dd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling challenges v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.48s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/challenges-f1cd3b923a2131f1)
[INFO] running `Command { std: "docker" "inspect" "4102089a0ad754d9f7c6d583e96c734fe27fe8b217eafa8e85a6c00d56b270dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4102089a0ad754d9f7c6d583e96c734fe27fe8b217eafa8e85a6c00d56b270dd", kill_on_drop: false }`
[INFO] [stdout] 4102089a0ad754d9f7c6d583e96c734fe27fe8b217eafa8e85a6c00d56b270dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4d641413f7d85d0a60c17d1945ad38998e37d4a67e0d07bb0ab9d98eea2b4dc3
[INFO] running `Command { std: "docker" "start" "-a" "4d641413f7d85d0a60c17d1945ad38998e37d4a67e0d07bb0ab9d98eea2b4dc3", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/challenges-f1cd3b923a2131f1)
[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" "4d641413f7d85d0a60c17d1945ad38998e37d4a67e0d07bb0ab9d98eea2b4dc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d641413f7d85d0a60c17d1945ad38998e37d4a67e0d07bb0ab9d98eea2b4dc3", kill_on_drop: false }`
[INFO] [stdout] 4d641413f7d85d0a60c17d1945ad38998e37d4a67e0d07bb0ab9d98eea2b4dc3