[INFO] cloning repository https://github.com/dhilipsiva/learn-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dhilipsiva/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhilipsiva%2Flearn-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhilipsiva%2Flearn-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 54a812ed9cd94c1dcf96f2db5244294292d18df1
[INFO] testing dhilipsiva/learn-rust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhilipsiva%2Flearn-rust" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dhilipsiva/learn-rust on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dhilipsiva/learn-rust
[INFO] finished tweaking git repo https://github.com/dhilipsiva/learn-rust
[INFO] tweaked toml for git repo https://github.com/dhilipsiva/learn-rust written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/dhilipsiva/learn-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 273a24162a834c0c0f34092f0213c5d660b685ad00983aefc10ca8757a619aff
[INFO] running `Command { std: "docker" "start" "-a" "273a24162a834c0c0f34092f0213c5d660b685ad00983aefc10ca8757a619aff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "273a24162a834c0c0f34092f0213c5d660b685ad00983aefc10ca8757a619aff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "273a24162a834c0c0f34092f0213c5d660b685ad00983aefc10ca8757a619aff", kill_on_drop: false }`
[INFO] [stdout] 273a24162a834c0c0f34092f0213c5d660b685ad00983aefc10ca8757a619aff
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 907c6848cd0aa0bfa37cbd01f1360d7357f5307e10c0194c13ef9777213f8346
[INFO] running `Command { std: "docker" "start" "-a" "907c6848cd0aa0bfa37cbd01f1360d7357f5307e10c0194c13ef9777213f8346", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ds-learn-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "907c6848cd0aa0bfa37cbd01f1360d7357f5307e10c0194c13ef9777213f8346", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "907c6848cd0aa0bfa37cbd01f1360d7357f5307e10c0194c13ef9777213f8346", kill_on_drop: false }`
[INFO] [stdout] 907c6848cd0aa0bfa37cbd01f1360d7357f5307e10c0194c13ef9777213f8346
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c54e8c9a5ece8208bc68ed19b7aad419cf267f89fa7ef488df6fffbf4af8999
[INFO] running `Command { std: "docker" "start" "-a" "4c54e8c9a5ece8208bc68ed19b7aad419cf267f89fa7ef488df6fffbf4af8999", kill_on_drop: false }`
[INFO] [stderr]    Compiling ds-learn-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "4c54e8c9a5ece8208bc68ed19b7aad419cf267f89fa7ef488df6fffbf4af8999", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c54e8c9a5ece8208bc68ed19b7aad419cf267f89fa7ef488df6fffbf4af8999", kill_on_drop: false }`
[INFO] [stdout] 4c54e8c9a5ece8208bc68ed19b7aad419cf267f89fa7ef488df6fffbf4af8999
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d29dfe165d1b9054bda6bba1da16b8c50e205e28c29c86f947aa2e6dfb17beba
[INFO] running `Command { std: "docker" "start" "-a" "d29dfe165d1b9054bda6bba1da16b8c50e205e28c29c86f947aa2e6dfb17beba", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ds_learn_rust-65bc18f98925e36e)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ds-learn-rust
[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" "d29dfe165d1b9054bda6bba1da16b8c50e205e28c29c86f947aa2e6dfb17beba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d29dfe165d1b9054bda6bba1da16b8c50e205e28c29c86f947aa2e6dfb17beba", kill_on_drop: false }`
[INFO] [stdout] d29dfe165d1b9054bda6bba1da16b8c50e205e28c29c86f947aa2e6dfb17beba