[INFO] cloning repository https://github.com/pione30/rust-the-book-ch08-exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pione30/rust-the-book-ch08-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpione30%2Frust-the-book-ch08-exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpione30%2Frust-the-book-ch08-exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4ea329af6436b66673e1326a72e9d3a6f6a95624
[INFO] testing pione30/rust-the-book-ch08-exercises against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpione30%2Frust-the-book-ch08-exercises" "/workspace/builds/worker-73/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-73/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pione30/rust-the-book-ch08-exercises on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pione30/rust-the-book-ch08-exercises
[INFO] finished tweaking git repo https://github.com/pione30/rust-the-book-ch08-exercises
[INFO] tweaked toml for git repo https://github.com/pione30/rust-the-book-ch08-exercises written to /workspace/builds/worker-73/source/Cargo.toml
[INFO] crate git repo https://github.com/pione30/rust-the-book-ch08-exercises already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] faa1c0614ad474aa607d5f823170e81f578b31cb26eefe59f055afbec7f0f17f
[INFO] running `Command { std: "docker" "start" "-a" "faa1c0614ad474aa607d5f823170e81f578b31cb26eefe59f055afbec7f0f17f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "faa1c0614ad474aa607d5f823170e81f578b31cb26eefe59f055afbec7f0f17f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faa1c0614ad474aa607d5f823170e81f578b31cb26eefe59f055afbec7f0f17f", kill_on_drop: false }`
[INFO] [stdout] faa1c0614ad474aa607d5f823170e81f578b31cb26eefe59f055afbec7f0f17f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ef3e18f577f4dbf1e363b9292d006b83415a2cb6efd07708af9b4f48ae5eab3
[INFO] running `Command { std: "docker" "start" "-a" "7ef3e18f577f4dbf1e363b9292d006b83415a2cb6efd07708af9b4f48ae5eab3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-the-book-ch08-exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `Command { std: "docker" "inspect" "7ef3e18f577f4dbf1e363b9292d006b83415a2cb6efd07708af9b4f48ae5eab3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ef3e18f577f4dbf1e363b9292d006b83415a2cb6efd07708af9b4f48ae5eab3", kill_on_drop: false }`
[INFO] [stdout] 7ef3e18f577f4dbf1e363b9292d006b83415a2cb6efd07708af9b4f48ae5eab3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7be82981383a111565b396159b8a663ea4b793a33c589089969637f64fa268e0
[INFO] running `Command { std: "docker" "start" "-a" "7be82981383a111565b396159b8a663ea4b793a33c589089969637f64fa268e0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-the-book-ch08-exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.68s
[INFO] running `Command { std: "docker" "inspect" "7be82981383a111565b396159b8a663ea4b793a33c589089969637f64fa268e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7be82981383a111565b396159b8a663ea4b793a33c589089969637f64fa268e0", kill_on_drop: false }`
[INFO] [stdout] 7be82981383a111565b396159b8a663ea4b793a33c589089969637f64fa268e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 18cd7f22f3f8a9ccc85ec7cdd9c3d2517ad8e0601ae582d1d401dd443c852f37
[INFO] running `Command { std: "docker" "start" "-a" "18cd7f22f3f8a9ccc85ec7cdd9c3d2517ad8e0601ae582d1d401dd443c852f37", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.33s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_the_book_ch08_exercises-03ef46eefb9e5b4f)
[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" "18cd7f22f3f8a9ccc85ec7cdd9c3d2517ad8e0601ae582d1d401dd443c852f37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18cd7f22f3f8a9ccc85ec7cdd9c3d2517ad8e0601ae582d1d401dd443c852f37", kill_on_drop: false }`
[INFO] [stdout] 18cd7f22f3f8a9ccc85ec7cdd9c3d2517ad8e0601ae582d1d401dd443c852f37