[INFO] cloning repository https://github.com/TomSpencerLondon/rust-exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TomSpencerLondon/rust-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomSpencerLondon%2Frust-exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomSpencerLondon%2Frust-exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1e7796afbbf35316b935c6e88563569579f3c5ac
[INFO] testing TomSpencerLondon/rust-exercises 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%2FTomSpencerLondon%2Frust-exercises" "/workspace/builds/worker-23/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-23/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TomSpencerLondon/rust-exercises 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/TomSpencerLondon/rust-exercises
[INFO] finished tweaking git repo https://github.com/TomSpencerLondon/rust-exercises
[INFO] tweaked toml for git repo https://github.com/TomSpencerLondon/rust-exercises written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] crate git repo https://github.com/TomSpencerLondon/rust-exercises 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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] 6290260782bf0b6de447e693b392dc3984aa83317db1382f094228a4b420a753
[INFO] running `Command { std: "docker" "start" "-a" "6290260782bf0b6de447e693b392dc3984aa83317db1382f094228a4b420a753", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6290260782bf0b6de447e693b392dc3984aa83317db1382f094228a4b420a753", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6290260782bf0b6de447e693b392dc3984aa83317db1382f094228a4b420a753", kill_on_drop: false }`
[INFO] [stdout] 6290260782bf0b6de447e693b392dc3984aa83317db1382f094228a4b420a753
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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] ec6dfcd64f51236b9a8852c6708cbf6705920e4de779eb22299e4bd759ac2d9d
[INFO] running `Command { std: "docker" "start" "-a" "ec6dfcd64f51236b9a8852c6708cbf6705920e4de779eb22299e4bd759ac2d9d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "ec6dfcd64f51236b9a8852c6708cbf6705920e4de779eb22299e4bd759ac2d9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec6dfcd64f51236b9a8852c6708cbf6705920e4de779eb22299e4bd759ac2d9d", kill_on_drop: false }`
[INFO] [stdout] ec6dfcd64f51236b9a8852c6708cbf6705920e4de779eb22299e4bd759ac2d9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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] 9f3e94a586bd1091cc69f26352ce7ce2f589e9b59fb6d3ea59b5c00f8d77c081
[INFO] running `Command { std: "docker" "start" "-a" "9f3e94a586bd1091cc69f26352ce7ce2f589e9b59fb6d3ea59b5c00f8d77c081", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "9f3e94a586bd1091cc69f26352ce7ce2f589e9b59fb6d3ea59b5c00f8d77c081", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f3e94a586bd1091cc69f26352ce7ce2f589e9b59fb6d3ea59b5c00f8d77c081", kill_on_drop: false }`
[INFO] [stdout] 9f3e94a586bd1091cc69f26352ce7ce2f589e9b59fb6d3ea59b5c00f8d77c081
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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] dc7a86983ef44638e00c5a9057dc24fe3f1d8e3334792c14b4cd9dd45f05f54a
[INFO] running `Command { std: "docker" "start" "-a" "dc7a86983ef44638e00c5a9057dc24fe3f1d8e3334792c14b4cd9dd45f05f54a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_exercises-e88b9ea8e58bfe9a)
[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" "dc7a86983ef44638e00c5a9057dc24fe3f1d8e3334792c14b4cd9dd45f05f54a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc7a86983ef44638e00c5a9057dc24fe3f1d8e3334792c14b4cd9dd45f05f54a", kill_on_drop: false }`
[INFO] [stdout] dc7a86983ef44638e00c5a9057dc24fe3f1d8e3334792c14b4cd9dd45f05f54a