[INFO] fetching crate rust-for-node-developer-exercise 0.1.0...
[INFO] testing rust-for-node-developer-exercise-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate rust-for-node-developer-exercise 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate rust-for-node-developer-exercise 0.1.0 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 crates.io crate rust-for-node-developer-exercise 0.1.0
[INFO] finished tweaking crates.io crate rust-for-node-developer-exercise 0.1.0
[INFO] tweaked toml for crates.io crate rust-for-node-developer-exercise 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate rust-for-node-developer-exercise 0.1.0 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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] ad8947d638b690aebecf8ebbe0c2176e57f3d584c595f5fdafd0c24ffc97d42d
[INFO] running `Command { std: "docker" "start" "-a" "ad8947d638b690aebecf8ebbe0c2176e57f3d584c595f5fdafd0c24ffc97d42d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad8947d638b690aebecf8ebbe0c2176e57f3d584c595f5fdafd0c24ffc97d42d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad8947d638b690aebecf8ebbe0c2176e57f3d584c595f5fdafd0c24ffc97d42d", kill_on_drop: false }`
[INFO] [stdout] ad8947d638b690aebecf8ebbe0c2176e57f3d584c595f5fdafd0c24ffc97d42d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] d0c8bae36ee6749a807370231d37fb1625b30acb792047a2ea1563f10a8fd28c
[INFO] running `Command { std: "docker" "start" "-a" "d0c8bae36ee6749a807370231d37fb1625b30acb792047a2ea1563f10a8fd28c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-for-node-developer-exercise v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "d0c8bae36ee6749a807370231d37fb1625b30acb792047a2ea1563f10a8fd28c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0c8bae36ee6749a807370231d37fb1625b30acb792047a2ea1563f10a8fd28c", kill_on_drop: false }`
[INFO] [stdout] d0c8bae36ee6749a807370231d37fb1625b30acb792047a2ea1563f10a8fd28c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 5b319e955238eb9d1f834109047dacf8d2bbc7562f95b33a744bb7172581e64b
[INFO] running `Command { std: "docker" "start" "-a" "5b319e955238eb9d1f834109047dacf8d2bbc7562f95b33a744bb7172581e64b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-for-node-developer-exercise v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.15s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_for_node_developer_exercise-4444fe454e0e65d5)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_for_node_developer_exercise-cae71ceb66d25ec9)
[INFO] running `Command { std: "docker" "inspect" "5b319e955238eb9d1f834109047dacf8d2bbc7562f95b33a744bb7172581e64b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b319e955238eb9d1f834109047dacf8d2bbc7562f95b33a744bb7172581e64b", kill_on_drop: false }`
[INFO] [stdout] 5b319e955238eb9d1f834109047dacf8d2bbc7562f95b33a744bb7172581e64b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 471f88015cce2e70c2dc41e9fe473d4ec19eca68e1bb5e1e3eddb517170befa5
[INFO] running `Command { std: "docker" "start" "-a" "471f88015cce2e70c2dc41e9fe473d4ec19eca68e1bb5e1e3eddb517170befa5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.26s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_for_node_developer_exercise-4444fe454e0e65d5)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_for_node_developer_exercise-cae71ceb66d25ec9)
[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] [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 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust-for-node-developer-exercise
[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" "471f88015cce2e70c2dc41e9fe473d4ec19eca68e1bb5e1e3eddb517170befa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "471f88015cce2e70c2dc41e9fe473d4ec19eca68e1bb5e1e3eddb517170befa5", kill_on_drop: false }`
[INFO] [stdout] 471f88015cce2e70c2dc41e9fe473d4ec19eca68e1bb5e1e3eddb517170befa5