[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-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomSpencerLondon%2Frust-exercises" "/workspace/builds/worker-17/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TomSpencerLondon/rust-exercises 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/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-17/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-2022-04-10" "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-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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] 6f6cb406c21598ee606ed4d0e492a6aa4851b53dcd7e42c6a20b6954f726b929
[INFO] running `Command { std: "docker" "start" "-a" "6f6cb406c21598ee606ed4d0e492a6aa4851b53dcd7e42c6a20b6954f726b929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f6cb406c21598ee606ed4d0e492a6aa4851b53dcd7e42c6a20b6954f726b929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f6cb406c21598ee606ed4d0e492a6aa4851b53dcd7e42c6a20b6954f726b929", kill_on_drop: false }`
[INFO] [stdout] 6f6cb406c21598ee606ed4d0e492a6aa4851b53dcd7e42c6a20b6954f726b929
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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] 0e1763389dc92754335fbad8847e914b088f6080e35140ad6ea2e882196a1e34
[INFO] running `Command { std: "docker" "start" "-a" "0e1763389dc92754335fbad8847e914b088f6080e35140ad6ea2e882196a1e34", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "0e1763389dc92754335fbad8847e914b088f6080e35140ad6ea2e882196a1e34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e1763389dc92754335fbad8847e914b088f6080e35140ad6ea2e882196a1e34", kill_on_drop: false }`
[INFO] [stdout] 0e1763389dc92754335fbad8847e914b088f6080e35140ad6ea2e882196a1e34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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] f0c8188474581d7caf6f17e5c70656d880c814cb0e991faff5c543dc92fa906c
[INFO] running `Command { std: "docker" "start" "-a" "f0c8188474581d7caf6f17e5c70656d880c814cb0e991faff5c543dc92fa906c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_exercises-e88b9ea8e58bfe9a)
[INFO] running `Command { std: "docker" "inspect" "f0c8188474581d7caf6f17e5c70656d880c814cb0e991faff5c543dc92fa906c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0c8188474581d7caf6f17e5c70656d880c814cb0e991faff5c543dc92fa906c", kill_on_drop: false }`
[INFO] [stdout] f0c8188474581d7caf6f17e5c70656d880c814cb0e991faff5c543dc92fa906c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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] f7d1f124ca02e1db6900704bbf775213ae16780185e922b87cd89cd154d0397a
[INFO] running `Command { std: "docker" "start" "-a" "f7d1f124ca02e1db6900704bbf775213ae16780185e922b87cd89cd154d0397a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/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" "f7d1f124ca02e1db6900704bbf775213ae16780185e922b87cd89cd154d0397a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7d1f124ca02e1db6900704bbf775213ae16780185e922b87cd89cd154d0397a", kill_on_drop: false }`
[INFO] [stdout] f7d1f124ca02e1db6900704bbf775213ae16780185e922b87cd89cd154d0397a