[INFO] cloning repository https://github.com/RyanBrushett/following-a-rust-tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RyanBrushett/following-a-rust-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyanBrushett%2Ffollowing-a-rust-tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyanBrushett%2Ffollowing-a-rust-tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2355a16d2bab2d1ebe2a579b1ae0ebaa93150ece
[INFO] testing RyanBrushett/following-a-rust-tutorial 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%2FRyanBrushett%2Ffollowing-a-rust-tutorial" "/workspace/builds/worker-44/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-44/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RyanBrushett/following-a-rust-tutorial 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/RyanBrushett/following-a-rust-tutorial
[INFO] finished tweaking git repo https://github.com/RyanBrushett/following-a-rust-tutorial
[INFO] tweaked toml for git repo https://github.com/RyanBrushett/following-a-rust-tutorial written to /workspace/builds/worker-44/source/Cargo.toml
[INFO] crate git repo https://github.com/RyanBrushett/following-a-rust-tutorial 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-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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] ca9c8a4dd3c3a30b379b58bd6300915eee3b2ed20cbdd129d288e7de0c679bd5
[INFO] running `Command { std: "docker" "start" "-a" "ca9c8a4dd3c3a30b379b58bd6300915eee3b2ed20cbdd129d288e7de0c679bd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca9c8a4dd3c3a30b379b58bd6300915eee3b2ed20cbdd129d288e7de0c679bd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca9c8a4dd3c3a30b379b58bd6300915eee3b2ed20cbdd129d288e7de0c679bd5", kill_on_drop: false }`
[INFO] [stdout] ca9c8a4dd3c3a30b379b58bd6300915eee3b2ed20cbdd129d288e7de0c679bd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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] 02f7c031f6b23303d2621aaef61793d32047b8f645e8598ce3db050eea439bf7
[INFO] running `Command { std: "docker" "start" "-a" "02f7c031f6b23303d2621aaef61793d32047b8f645e8598ce3db050eea439bf7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling following-a-rust-tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.63s
[INFO] running `Command { std: "docker" "inspect" "02f7c031f6b23303d2621aaef61793d32047b8f645e8598ce3db050eea439bf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02f7c031f6b23303d2621aaef61793d32047b8f645e8598ce3db050eea439bf7", kill_on_drop: false }`
[INFO] [stdout] 02f7c031f6b23303d2621aaef61793d32047b8f645e8598ce3db050eea439bf7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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] 975c0872b3c3335956982604cd1325f4abd1cfa8753366ed72ee63a471e67010
[INFO] running `Command { std: "docker" "start" "-a" "975c0872b3c3335956982604cd1325f4abd1cfa8753366ed72ee63a471e67010", kill_on_drop: false }`
[INFO] [stderr]    Compiling following-a-rust-tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "975c0872b3c3335956982604cd1325f4abd1cfa8753366ed72ee63a471e67010", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "975c0872b3c3335956982604cd1325f4abd1cfa8753366ed72ee63a471e67010", kill_on_drop: false }`
[INFO] [stdout] 975c0872b3c3335956982604cd1325f4abd1cfa8753366ed72ee63a471e67010
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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] f6bdb1df5ff40394163f1c841a1f0a9185e2d98baacfdec49f64d17dd25be8cc
[INFO] running `Command { std: "docker" "start" "-a" "f6bdb1df5ff40394163f1c841a1f0a9185e2d98baacfdec49f64d17dd25be8cc", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/following_a_rust_tutorial-1cd1409325ad6e61)
[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" "f6bdb1df5ff40394163f1c841a1f0a9185e2d98baacfdec49f64d17dd25be8cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6bdb1df5ff40394163f1c841a1f0a9185e2d98baacfdec49f64d17dd25be8cc", kill_on_drop: false }`
[INFO] [stdout] f6bdb1df5ff40394163f1c841a1f0a9185e2d98baacfdec49f64d17dd25be8cc