[INFO] cloning repository https://github.com/Knium/trpl-exercise-chap8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Knium/trpl-exercise-chap8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKnium%2Ftrpl-exercise-chap8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKnium%2Ftrpl-exercise-chap8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 51ba570a09a7e0c4d7cda9296c36ec5b9545c78b
[INFO] testing Knium/trpl-exercise-chap8 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%2FKnium%2Ftrpl-exercise-chap8" "/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/Knium/trpl-exercise-chap8 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/Knium/trpl-exercise-chap8
[INFO] finished tweaking git repo https://github.com/Knium/trpl-exercise-chap8
[INFO] tweaked toml for git repo https://github.com/Knium/trpl-exercise-chap8 written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate git repo https://github.com/Knium/trpl-exercise-chap8 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-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] 8b92f8d0679a737c2a577f134f4b63eb234f8d5ebe1e8a5bfaa8dc79e952e842
[INFO] running `Command { std: "docker" "start" "-a" "8b92f8d0679a737c2a577f134f4b63eb234f8d5ebe1e8a5bfaa8dc79e952e842", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b92f8d0679a737c2a577f134f4b63eb234f8d5ebe1e8a5bfaa8dc79e952e842", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b92f8d0679a737c2a577f134f4b63eb234f8d5ebe1e8a5bfaa8dc79e952e842", kill_on_drop: false }`
[INFO] [stdout] 8b92f8d0679a737c2a577f134f4b63eb234f8d5ebe1e8a5bfaa8dc79e952e842
[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] 45a0f98a7979820ef63ec2b0c916e7f6c2fbd8dac0f1e9dbbb76ad8162cd67fd
[INFO] running `Command { std: "docker" "start" "-a" "45a0f98a7979820ef63ec2b0c916e7f6c2fbd8dac0f1e9dbbb76ad8162cd67fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling trpl-exercise-chap8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "45a0f98a7979820ef63ec2b0c916e7f6c2fbd8dac0f1e9dbbb76ad8162cd67fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45a0f98a7979820ef63ec2b0c916e7f6c2fbd8dac0f1e9dbbb76ad8162cd67fd", kill_on_drop: false }`
[INFO] [stdout] 45a0f98a7979820ef63ec2b0c916e7f6c2fbd8dac0f1e9dbbb76ad8162cd67fd
[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] 55caf0f4e1eff57cc57e759799df080ffe917f7cfe82dc16632908e7c28bf09b
[INFO] running `Command { std: "docker" "start" "-a" "55caf0f4e1eff57cc57e759799df080ffe917f7cfe82dc16632908e7c28bf09b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling trpl-exercise-chap8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.06s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/trpl_exercise_chap8-7cbf8ad5cc05bf29)
[INFO] running `Command { std: "docker" "inspect" "55caf0f4e1eff57cc57e759799df080ffe917f7cfe82dc16632908e7c28bf09b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55caf0f4e1eff57cc57e759799df080ffe917f7cfe82dc16632908e7c28bf09b", kill_on_drop: false }`
[INFO] [stdout] 55caf0f4e1eff57cc57e759799df080ffe917f7cfe82dc16632908e7c28bf09b
[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] 927c9273345b07b2cf5b274c136ba16cf390e347e5167a4e8abd11f834e005f7
[INFO] running `Command { std: "docker" "start" "-a" "927c9273345b07b2cf5b274c136ba16cf390e347e5167a4e8abd11f834e005f7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/trpl_exercise_chap8-7cbf8ad5cc05bf29)
[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" "927c9273345b07b2cf5b274c136ba16cf390e347e5167a4e8abd11f834e005f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "927c9273345b07b2cf5b274c136ba16cf390e347e5167a4e8abd11f834e005f7", kill_on_drop: false }`
[INFO] [stdout] 927c9273345b07b2cf5b274c136ba16cf390e347e5167a4e8abd11f834e005f7