[INFO] cloning repository https://github.com/andoco/rust-json-log-viewer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andoco/rust-json-log-viewer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandoco%2Frust-json-log-viewer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandoco%2Frust-json-log-viewer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 14ab4ebc509549610f1dd5f467f9fdb4aae288d3
[INFO] testing andoco/rust-json-log-viewer against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandoco%2Frust-json-log-viewer" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andoco/rust-json-log-viewer 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/andoco/rust-json-log-viewer
[INFO] finished tweaking git repo https://github.com/andoco/rust-json-log-viewer
[INFO] tweaked toml for git repo https://github.com/andoco/rust-json-log-viewer written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/andoco/rust-json-log-viewer 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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 6e80c0b345be0b4481f73e4e43880d8685a56f409910fd5342a325f32df97c14
[INFO] running `Command { std: "docker" "start" "-a" "6e80c0b345be0b4481f73e4e43880d8685a56f409910fd5342a325f32df97c14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e80c0b345be0b4481f73e4e43880d8685a56f409910fd5342a325f32df97c14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e80c0b345be0b4481f73e4e43880d8685a56f409910fd5342a325f32df97c14", kill_on_drop: false }`
[INFO] [stdout] 6e80c0b345be0b4481f73e4e43880d8685a56f409910fd5342a325f32df97c14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 374095fe078335dd2298563b82362f8512ae0694de1e10679d806ee617f31d25
[INFO] running `Command { std: "docker" "start" "-a" "374095fe078335dd2298563b82362f8512ae0694de1e10679d806ee617f31d25", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling rust-json-log-viewer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.23s
[INFO] running `Command { std: "docker" "inspect" "374095fe078335dd2298563b82362f8512ae0694de1e10679d806ee617f31d25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "374095fe078335dd2298563b82362f8512ae0694de1e10679d806ee617f31d25", kill_on_drop: false }`
[INFO] [stdout] 374095fe078335dd2298563b82362f8512ae0694de1e10679d806ee617f31d25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 300d5f5314bd386ff935faa8085df06cb791c2dfe382aefaaa957e6f30e2cfee
[INFO] running `Command { std: "docker" "start" "-a" "300d5f5314bd386ff935faa8085df06cb791c2dfe382aefaaa957e6f30e2cfee", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-json-log-viewer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "300d5f5314bd386ff935faa8085df06cb791c2dfe382aefaaa957e6f30e2cfee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "300d5f5314bd386ff935faa8085df06cb791c2dfe382aefaaa957e6f30e2cfee", kill_on_drop: false }`
[INFO] [stdout] 300d5f5314bd386ff935faa8085df06cb791c2dfe382aefaaa957e6f30e2cfee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 24dc308620de3360f47af7cca6bdd15a3374a5c318666ef5a8e5406574cd145d
[INFO] running `Command { std: "docker" "start" "-a" "24dc308620de3360f47af7cca6bdd15a3374a5c318666ef5a8e5406574cd145d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_json_log_viewer-4fe7f8385efa91df)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::test_format_log_line ... ok
[INFO] [stdout] test tests::test_format_log_line_with_missing_message_returns_error ... ok
[INFO] [stdout] test tests::test_format_log_line_with_missing_level_returns_error ... ok
[INFO] [stdout] test tests::test_format_log_line_with_missing_timestamp_returns_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "24dc308620de3360f47af7cca6bdd15a3374a5c318666ef5a8e5406574cd145d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24dc308620de3360f47af7cca6bdd15a3374a5c318666ef5a8e5406574cd145d", kill_on_drop: false }`
[INFO] [stdout] 24dc308620de3360f47af7cca6bdd15a3374a5c318666ef5a8e5406574cd145d