[INFO] fetching crate swon-tree 0.1.0...
[INFO] testing swon-tree-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate swon-tree 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate swon-tree 0.1.0
[INFO] finished tweaking crates.io crate swon-tree 0.1.0
[INFO] tweaked toml for crates.io crate swon-tree 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate swon-tree 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate swon-tree 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da0e4318db3a0869c63ee50eaa99d6cfcbccc9ff04305da05b50d6957af183bb
[INFO] running `Command { std: "docker" "start" "-a" "da0e4318db3a0869c63ee50eaa99d6cfcbccc9ff04305da05b50d6957af183bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da0e4318db3a0869c63ee50eaa99d6cfcbccc9ff04305da05b50d6957af183bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da0e4318db3a0869c63ee50eaa99d6cfcbccc9ff04305da05b50d6957af183bb", kill_on_drop: false }`
[INFO] [stdout] da0e4318db3a0869c63ee50eaa99d6cfcbccc9ff04305da05b50d6957af183bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 269c9c3bf6def0c97fc2f8a1639bf96d6c15026565d30f3cd8eba5bc0fd67b6d
[INFO] running `Command { std: "docker" "start" "-a" "269c9c3bf6def0c97fc2f8a1639bf96d6c15026565d30f3cd8eba5bc0fd67b6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling swon-tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "269c9c3bf6def0c97fc2f8a1639bf96d6c15026565d30f3cd8eba5bc0fd67b6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "269c9c3bf6def0c97fc2f8a1639bf96d6c15026565d30f3cd8eba5bc0fd67b6d", kill_on_drop: false }`
[INFO] [stdout] 269c9c3bf6def0c97fc2f8a1639bf96d6c15026565d30f3cd8eba5bc0fd67b6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2837b6adbe62ec66254d3d775bcf665bd1f8cf85be409a22e85296b26e330e3e
[INFO] running `Command { std: "docker" "start" "-a" "2837b6adbe62ec66254d3d775bcf665bd1f8cf85be409a22e85296b26e330e3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling swon-tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "2837b6adbe62ec66254d3d775bcf665bd1f8cf85be409a22e85296b26e330e3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2837b6adbe62ec66254d3d775bcf665bd1f8cf85be409a22e85296b26e330e3e", kill_on_drop: false }`
[INFO] [stdout] 2837b6adbe62ec66254d3d775bcf665bd1f8cf85be409a22e85296b26e330e3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 010d4251ed2842d5d12c6b0674da7e0098fd5de709803a485e7c882d8edf87de
[INFO] running `Command { std: "docker" "start" "-a" "010d4251ed2842d5d12c6b0674da7e0098fd5de709803a485e7c882d8edf87de", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/swon_tree-97e3ea018564a7be)
[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] [stderr]    Doc-tests swon_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" "010d4251ed2842d5d12c6b0674da7e0098fd5de709803a485e7c882d8edf87de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "010d4251ed2842d5d12c6b0674da7e0098fd5de709803a485e7c882d8edf87de", kill_on_drop: false }`
[INFO] [stdout] 010d4251ed2842d5d12c6b0674da7e0098fd5de709803a485e7c882d8edf87de