[INFO] fetching crate conllu 0.7.0...
[INFO] testing conllu-0.7.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate conllu 0.7.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate conllu 0.7.0 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 conllu 0.7.0
[INFO] finished tweaking crates.io crate conllu 0.7.0
[INFO] tweaked toml for crates.io crate conllu 0.7.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 09e8619fe9d87753d5194f5541ec0c5084d22023a05639b0c18d3de39e874c74
[INFO] running `Command { std: "docker" "start" "-a" "09e8619fe9d87753d5194f5541ec0c5084d22023a05639b0c18d3de39e874c74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09e8619fe9d87753d5194f5541ec0c5084d22023a05639b0c18d3de39e874c74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09e8619fe9d87753d5194f5541ec0c5084d22023a05639b0c18d3de39e874c74", kill_on_drop: false }`
[INFO] [stdout] 09e8619fe9d87753d5194f5541ec0c5084d22023a05639b0c18d3de39e874c74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] bbc0f1547d773f995417d59c6d4b3f017e27db041d5d477b1e4d17723640db74
[INFO] running `Command { std: "docker" "start" "-a" "bbc0f1547d773f995417d59c6d4b3f017e27db041d5d477b1e4d17723640db74", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling fixedbitset v0.4.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling petgraph v0.6.0
[INFO] [stderr]    Compiling udgraph v0.7.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling thiserror v1.0.29
[INFO] [stderr]    Compiling conllu v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.74s
[INFO] running `Command { std: "docker" "inspect" "bbc0f1547d773f995417d59c6d4b3f017e27db041d5d477b1e4d17723640db74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbc0f1547d773f995417d59c6d4b3f017e27db041d5d477b1e4d17723640db74", kill_on_drop: false }`
[INFO] [stdout] bbc0f1547d773f995417d59c6d4b3f017e27db041d5d477b1e4d17723640db74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] c3e0d94bfb92d3751d78e8ebd03d5230fb07579c7cf1e0702fcd9476b1c7546e
[INFO] running `Command { std: "docker" "start" "-a" "c3e0d94bfb92d3751d78e8ebd03d5230fb07579c7cf1e0702fcd9476b1c7546e", kill_on_drop: false }`
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling conllu v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "c3e0d94bfb92d3751d78e8ebd03d5230fb07579c7cf1e0702fcd9476b1c7546e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3e0d94bfb92d3751d78e8ebd03d5230fb07579c7cf1e0702fcd9476b1c7546e", kill_on_drop: false }`
[INFO] [stdout] c3e0d94bfb92d3751d78e8ebd03d5230fb07579c7cf1e0702fcd9476b1c7546e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 453fde350cd800464a3954a287811719b8d7391c3b10d4a3808c380c6ae37bf5
[INFO] running `Command { std: "docker" "start" "-a" "453fde350cd800464a3954a287811719b8d7391c3b10d4a3808c380c6ae37bf5", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/conllu-6d0591f23823a3f4)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test display::tests::eq_features_is_order_insensitive ... ok
[INFO] [stdout] test display::tests::parse_empty_features ... ok
[INFO] [stdout] test display::tests::features_with_colons ... ok
[INFO] [stdout] test display::tests::features_from_iter_as_string ... ok
[INFO] [stdout] test display::tests::features ... ok
[INFO] [stdout] test display::tests::feature_without_value_results_in_error ... ok
[INFO] [stdout] test io::tests::reader_marked_empty ... ok
[INFO] [stdout] test io::tests::reader ... ok
[INFO] [stdout] test io::tests::writer ... ok
[INFO] [stdout] test io::tests::reader_robust ... ok
[INFO] [stderr]    Doc-tests conllu
[INFO] [stdout] test io::tests::reader_rejects_non_numeric_id - should panic ... ok
[INFO] [stdout] test io::tests::reader_rejects_relation_without_head - should panic ... ok
[INFO] [stdout] test io::tests::reader_rejects_underscore_id - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/io.rs - io::Writer<W>::get_ref (line 260) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.54s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "453fde350cd800464a3954a287811719b8d7391c3b10d4a3808c380c6ae37bf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "453fde350cd800464a3954a287811719b8d7391c3b10d4a3808c380c6ae37bf5", kill_on_drop: false }`
[INFO] [stdout] 453fde350cd800464a3954a287811719b8d7391c3b10d4a3808c380c6ae37bf5