[INFO] fetching crate treebender 0.1.1...
[INFO] testing treebender-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate treebender 0.1.1 into /workspace/builds/worker-29/source
[INFO] validating manifest of crates.io crate treebender 0.1.1 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 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-29/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" "+1.55.0" "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-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] 5dc9fac7e9da7f94e9a8c99a45dec1d6a6bc69f70c55de1730ef1c8d129adb5c
[INFO] running `Command { std: "docker" "start" "-a" "5dc9fac7e9da7f94e9a8c99a45dec1d6a6bc69f70c55de1730ef1c8d129adb5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5dc9fac7e9da7f94e9a8c99a45dec1d6a6bc69f70c55de1730ef1c8d129adb5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dc9fac7e9da7f94e9a8c99a45dec1d6a6bc69f70c55de1730ef1c8d129adb5c", kill_on_drop: false }`
[INFO] [stdout] 5dc9fac7e9da7f94e9a8c99a45dec1d6a6bc69f70c55de1730ef1c8d129adb5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] 57a9b8f8f84fcd976dc4a7d0ab04711cc2a0033fd0fc7a2c2d71cf53ee99acca
[INFO] running `Command { std: "docker" "start" "-a" "57a9b8f8f84fcd976dc4a7d0ab04711cc2a0033fd0fc7a2c2d71cf53ee99acca", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling memchr v2.3.3
[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 8.68s
[INFO] running `Command { std: "docker" "inspect" "57a9b8f8f84fcd976dc4a7d0ab04711cc2a0033fd0fc7a2c2d71cf53ee99acca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57a9b8f8f84fcd976dc4a7d0ab04711cc2a0033fd0fc7a2c2d71cf53ee99acca", kill_on_drop: false }`
[INFO] [stdout] 57a9b8f8f84fcd976dc4a7d0ab04711cc2a0033fd0fc7a2c2d71cf53ee99acca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] c76d8d408bcdb757534644949bd8a3b2b37b390526f7b372916fd5c8820e36ea
[INFO] running `Command { std: "docker" "start" "-a" "c76d8d408bcdb757534644949bd8a3b2b37b390526f7b372916fd5c8820e36ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling treebender v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.21s
[INFO] running `Command { std: "docker" "inspect" "c76d8d408bcdb757534644949bd8a3b2b37b390526f7b372916fd5c8820e36ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c76d8d408bcdb757534644949bd8a3b2b37b390526f7b372916fd5c8820e36ea", kill_on_drop: false }`
[INFO] [stdout] c76d8d408bcdb757534644949bd8a3b2b37b390526f7b372916fd5c8820e36ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] 1e3d22bb49b5150f0db45a6d7e8f813c3c30041feb9dc546000dc7a25cef521d
[INFO] running `Command { std: "docker" "start" "-a" "1e3d22bb49b5150f0db45a6d7e8f813c3c30041feb9dc546000dc7a25cef521d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.60s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/treebender-153fc284c4f8ca87)
[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_parse_chart ... ok
[INFO] [stdout] test forest::test_tree_generation ... ok
[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; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cli-1efd63c628cf6eb2)
[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 0.88s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1e3d22bb49b5150f0db45a6d7e8f813c3c30041feb9dc546000dc7a25cef521d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e3d22bb49b5150f0db45a6d7e8f813c3c30041feb9dc546000dc7a25cef521d", kill_on_drop: false }`
[INFO] [stdout] 1e3d22bb49b5150f0db45a6d7e8f813c3c30041feb9dc546000dc7a25cef521d