[INFO] fetching crate treebender 0.1.1...
[INFO] testing treebender-0.1.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate treebender 0.1.1 into /workspace/builds/worker-53/source
[INFO] validating manifest of crates.io crate treebender 0.1.1 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate treebender 0.1.1
[INFO] finished tweaking crates.io crate treebender 0.1.1
[INFO] tweaked toml for crates.io crate treebender 0.1.1 written to /workspace/builds/worker-53/source/Cargo.toml
[INFO] crate crates.io crate treebender 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a4ece2c1b2fd0d7af65216e0ef636dc7820e8ed4649ce1a16149c73070b170a
[INFO] running `Command { std: "docker" "start" "-a" "7a4ece2c1b2fd0d7af65216e0ef636dc7820e8ed4649ce1a16149c73070b170a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a4ece2c1b2fd0d7af65216e0ef636dc7820e8ed4649ce1a16149c73070b170a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a4ece2c1b2fd0d7af65216e0ef636dc7820e8ed4649ce1a16149c73070b170a", kill_on_drop: false }`
[INFO] [stdout] 7a4ece2c1b2fd0d7af65216e0ef636dc7820e8ed4649ce1a16149c73070b170a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b07e805bdc31bd5a44e6a6f88d81b17cc14edbe01de39ef89c3697e9c0792d9
[INFO] running `Command { std: "docker" "start" "-a" "6b07e805bdc31bd5a44e6a6f88d81b17cc14edbe01de39ef89c3697e9c0792d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling treebender v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.56s
[INFO] running `Command { std: "docker" "inspect" "6b07e805bdc31bd5a44e6a6f88d81b17cc14edbe01de39ef89c3697e9c0792d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b07e805bdc31bd5a44e6a6f88d81b17cc14edbe01de39ef89c3697e9c0792d9", kill_on_drop: false }`
[INFO] [stdout] 6b07e805bdc31bd5a44e6a6f88d81b17cc14edbe01de39ef89c3697e9c0792d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5808bddca2b98171ad794d20b4f8bef6bb24d177b805ed665de3ab09317d428
[INFO] running `Command { std: "docker" "start" "-a" "b5808bddca2b98171ad794d20b4f8bef6bb24d177b805ed665de3ab09317d428", kill_on_drop: false }`
[INFO] [stderr]    Compiling treebender v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "b5808bddca2b98171ad794d20b4f8bef6bb24d177b805ed665de3ab09317d428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5808bddca2b98171ad794d20b4f8bef6bb24d177b805ed665de3ab09317d428", kill_on_drop: false }`
[INFO] [stdout] b5808bddca2b98171ad794d20b4f8bef6bb24d177b805ed665de3ab09317d428
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2e408003346d5237917b5561751498046bf4aeafe1d46da683488d56bbf7412f
[INFO] running `Command { std: "docker" "start" "-a" "2e408003346d5237917b5561751498046bf4aeafe1d46da683488d56bbf7412f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/treebender-dcd49e09aebe4f67)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test featurestructure::tests::test_construct_fs ... ok
[INFO] [stdout] test featurestructure::tests::test_unify_tags ... ok
[INFO] [stdout] test forest::test_tree_generation ... ok
[INFO] [stdout] test rules::test_find_nullables ... ok
[INFO] [stdout] test forest::test_parse_chart ... ok
[INFO] [stdout] test test_unification_blocking ... ok
[INFO] [stdout] test rules::test_parse_grammar ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cli-4fd2bcbc56c81445)
[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 treebender
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/utils.rs - utils::combinations (line 9) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.81s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2e408003346d5237917b5561751498046bf4aeafe1d46da683488d56bbf7412f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e408003346d5237917b5561751498046bf4aeafe1d46da683488d56bbf7412f", kill_on_drop: false }`
[INFO] [stdout] 2e408003346d5237917b5561751498046bf4aeafe1d46da683488d56bbf7412f