[INFO] cloning repository https://github.com/fdrennan/rust_learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fdrennan/rust_learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffdrennan%2Frust_learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffdrennan%2Frust_learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7582bec44cfeb49bb638d4be1a7e3efd1ba7695d
[INFO] testing fdrennan/rust_learning 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%2Ffdrennan%2Frust_learning" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fdrennan/rust_learning 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/fdrennan/rust_learning
[INFO] finished tweaking git repo https://github.com/fdrennan/rust_learning
[INFO] tweaked toml for git repo https://github.com/fdrennan/rust_learning written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/fdrennan/rust_learning 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 7e3a351f9b8e3acef89ed2d30d7de93ab9e7a11ffaa348c80d2f36bc3aba3da7
[INFO] running `Command { std: "docker" "start" "-a" "7e3a351f9b8e3acef89ed2d30d7de93ab9e7a11ffaa348c80d2f36bc3aba3da7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e3a351f9b8e3acef89ed2d30d7de93ab9e7a11ffaa348c80d2f36bc3aba3da7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e3a351f9b8e3acef89ed2d30d7de93ab9e7a11ffaa348c80d2f36bc3aba3da7", kill_on_drop: false }`
[INFO] [stdout] 7e3a351f9b8e3acef89ed2d30d7de93ab9e7a11ffaa348c80d2f36bc3aba3da7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] f598bf770f2aace8796157b648d4875f13c6c1d912758280636d7430cb9d584d
[INFO] running `Command { std: "docker" "start" "-a" "f598bf770f2aace8796157b648d4875f13c6c1d912758280636d7430cb9d584d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rust_learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.70s
[INFO] running `Command { std: "docker" "inspect" "f598bf770f2aace8796157b648d4875f13c6c1d912758280636d7430cb9d584d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f598bf770f2aace8796157b648d4875f13c6c1d912758280636d7430cb9d584d", kill_on_drop: false }`
[INFO] [stdout] f598bf770f2aace8796157b648d4875f13c6c1d912758280636d7430cb9d584d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] d62c55df38461333b2898f4d3352b89cff5f1761f905d002d5b88efa7770978c
[INFO] running `Command { std: "docker" "start" "-a" "d62c55df38461333b2898f4d3352b89cff5f1761f905d002d5b88efa7770978c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_learning-fa777e595d347ec5)
[INFO] running `Command { std: "docker" "inspect" "d62c55df38461333b2898f4d3352b89cff5f1761f905d002d5b88efa7770978c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d62c55df38461333b2898f4d3352b89cff5f1761f905d002d5b88efa7770978c", kill_on_drop: false }`
[INFO] [stdout] d62c55df38461333b2898f4d3352b89cff5f1761f905d002d5b88efa7770978c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 01b052a37ba71bcea45ba03bf3d6eaad37da17ffb8a1ccb432c4bcb7dbf5718d
[INFO] running `Command { std: "docker" "start" "-a" "01b052a37ba71bcea45ba03bf3d6eaad37da17ffb8a1ccb432c4bcb7dbf5718d", 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_learning-fa777e595d347ec5)
[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" "01b052a37ba71bcea45ba03bf3d6eaad37da17ffb8a1ccb432c4bcb7dbf5718d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01b052a37ba71bcea45ba03bf3d6eaad37da17ffb8a1ccb432c4bcb7dbf5718d", kill_on_drop: false }`
[INFO] [stdout] 01b052a37ba71bcea45ba03bf3d6eaad37da17ffb8a1ccb432c4bcb7dbf5718d