[INFO] cloning repository https://github.com/lbrande/red-black-tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lbrande/red-black-tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flbrande%2Fred-black-tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flbrande%2Fred-black-tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 93e90d43a7f1dbfa0ad129270adfd33c90ad2c46
[INFO] testing lbrande/red-black-tree against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flbrande%2Fred-black-tree" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lbrande/red-black-tree 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/lbrande/red-black-tree
[INFO] finished tweaking git repo https://github.com/lbrande/red-black-tree
[INFO] tweaked toml for git repo https://github.com/lbrande/red-black-tree written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/lbrande/red-black-tree 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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 2a75a97d197e252605f78d7cd1e4dcdbe7508e9dfce3fdeb5bf4cf3d965a6461
[INFO] running `Command { std: "docker" "start" "-a" "2a75a97d197e252605f78d7cd1e4dcdbe7508e9dfce3fdeb5bf4cf3d965a6461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a75a97d197e252605f78d7cd1e4dcdbe7508e9dfce3fdeb5bf4cf3d965a6461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a75a97d197e252605f78d7cd1e4dcdbe7508e9dfce3fdeb5bf4cf3d965a6461", kill_on_drop: false }`
[INFO] [stdout] 2a75a97d197e252605f78d7cd1e4dcdbe7508e9dfce3fdeb5bf4cf3d965a6461
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 9d6aae9b47293a7c0a867376636c52d93315daba5bf389f714d033838fd3eae4
[INFO] running `Command { std: "docker" "start" "-a" "9d6aae9b47293a7c0a867376636c52d93315daba5bf389f714d033838fd3eae4", kill_on_drop: false }`
[INFO] [stderr]    Compiling red-black-tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "9d6aae9b47293a7c0a867376636c52d93315daba5bf389f714d033838fd3eae4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d6aae9b47293a7c0a867376636c52d93315daba5bf389f714d033838fd3eae4", kill_on_drop: false }`
[INFO] [stdout] 9d6aae9b47293a7c0a867376636c52d93315daba5bf389f714d033838fd3eae4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 1f122e8ddb4498dd1a7870e399d204b70c19d95d6e243bf22f364dc36db243c6
[INFO] running `Command { std: "docker" "start" "-a" "1f122e8ddb4498dd1a7870e399d204b70c19d95d6e243bf22f364dc36db243c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling red-black-tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "1f122e8ddb4498dd1a7870e399d204b70c19d95d6e243bf22f364dc36db243c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f122e8ddb4498dd1a7870e399d204b70c19d95d6e243bf22f364dc36db243c6", kill_on_drop: false }`
[INFO] [stdout] 1f122e8ddb4498dd1a7870e399d204b70c19d95d6e243bf22f364dc36db243c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 449414d24f182e77fadccc246e44c28716b85b6ac95975184369e1cf119e1a82
[INFO] running `Command { std: "docker" "start" "-a" "449414d24f182e77fadccc246e44c28716b85b6ac95975184369e1cf119e1a82", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/red_black_tree-734ef7a3bda3a9b6)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::tree_set_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests red-black-tree
[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" "449414d24f182e77fadccc246e44c28716b85b6ac95975184369e1cf119e1a82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "449414d24f182e77fadccc246e44c28716b85b6ac95975184369e1cf119e1a82", kill_on_drop: false }`
[INFO] [stdout] 449414d24f182e77fadccc246e44c28716b85b6ac95975184369e1cf119e1a82