[INFO] fetching crate treebender 0.1.0...
[INFO] testing treebender-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate treebender 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate treebender 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate treebender 0.1.0
[INFO] finished tweaking crates.io crate treebender 0.1.0
[INFO] tweaked toml for crates.io crate treebender 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate treebender 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e07569a16792b5e5c459f7cb6e820826a65ad45cf98c0559bb863357aa080d0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6e07569a16792b5e5c459f7cb6e820826a65ad45cf98c0559bb863357aa080d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e07569a16792b5e5c459f7cb6e820826a65ad45cf98c0559bb863357aa080d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e07569a16792b5e5c459f7cb6e820826a65ad45cf98c0559bb863357aa080d0", kill_on_drop: false }`
[INFO] [stdout] 6e07569a16792b5e5c459f7cb6e820826a65ad45cf98c0559bb863357aa080d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c91633e576f87285a010b6c16ff1328489b4dfef6a3b9573bca4cf54552f1e9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3c91633e576f87285a010b6c16ff1328489b4dfef6a3b9573bca4cf54552f1e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling treebender v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.19s
[INFO] running `Command { std: "docker" "inspect" "3c91633e576f87285a010b6c16ff1328489b4dfef6a3b9573bca4cf54552f1e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c91633e576f87285a010b6c16ff1328489b4dfef6a3b9573bca4cf54552f1e9", kill_on_drop: false }`
[INFO] [stdout] 3c91633e576f87285a010b6c16ff1328489b4dfef6a3b9573bca4cf54552f1e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b0a8f96dd55eddb2fedd3384dd167ac84c342f06427ad6035c25edf94ebfb6da
[INFO] running `Command { std: "docker" "start" "-a" "b0a8f96dd55eddb2fedd3384dd167ac84c342f06427ad6035c25edf94ebfb6da", kill_on_drop: false }`
[INFO] [stderr]    Compiling treebender v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.89s
[INFO] running `Command { std: "docker" "inspect" "b0a8f96dd55eddb2fedd3384dd167ac84c342f06427ad6035c25edf94ebfb6da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0a8f96dd55eddb2fedd3384dd167ac84c342f06427ad6035c25edf94ebfb6da", kill_on_drop: false }`
[INFO] [stdout] b0a8f96dd55eddb2fedd3384dd167ac84c342f06427ad6035c25edf94ebfb6da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c14b2c152f21138dd6d66ed4d14f57c4e49ac0006681b41009fc59ed324a4064
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c14b2c152f21138dd6d66ed4d14f57c4e49ac0006681b41009fc59ed324a4064", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/treebender-6055592027dd2306
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test featurestructure::test_construct_fs ... ok
[INFO] [stdout] test featurestructure::test_unify_tags ... ok
[INFO] [stdout] test forest::test_tree_generation ... ok
[INFO] [stdout] test forest::test_parse_chart ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cli-670d474d5ff44ec3
[INFO] [stdout] test rules::test_find_nullables ... ok
[INFO] [stdout] test rules::test_parse_grammar ... ok
[INFO] [stdout] test test_unification_blocking ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c14b2c152f21138dd6d66ed4d14f57c4e49ac0006681b41009fc59ed324a4064", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c14b2c152f21138dd6d66ed4d14f57c4e49ac0006681b41009fc59ed324a4064", kill_on_drop: false }`
[INFO] [stdout] c14b2c152f21138dd6d66ed4d14f57c4e49ac0006681b41009fc59ed324a4064