[INFO] fetching crate parse_tree 0.0.7...
[INFO] testing parse_tree-0.0.7 against 1.55.0 for beta-1.56-1
[INFO] extracting crate parse_tree 0.0.7 into /workspace/builds/worker-54/source
[INFO] validating manifest of crates.io crate parse_tree 0.0.7 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 parse_tree 0.0.7
[INFO] finished tweaking crates.io crate parse_tree 0.0.7
[INFO] tweaked toml for crates.io crate parse_tree 0.0.7 written to /workspace/builds/worker-54/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] 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-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 897597c0d73b2a2024ca14ce8f54602222e45ed06943969f10489a95b4b8cf5a
[INFO] running `Command { std: "docker" "start" "-a" "897597c0d73b2a2024ca14ce8f54602222e45ed06943969f10489a95b4b8cf5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "897597c0d73b2a2024ca14ce8f54602222e45ed06943969f10489a95b4b8cf5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "897597c0d73b2a2024ca14ce8f54602222e45ed06943969f10489a95b4b8cf5a", kill_on_drop: false }`
[INFO] [stdout] 897597c0d73b2a2024ca14ce8f54602222e45ed06943969f10489a95b4b8cf5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 90944c634c61bedc6c6ef64970d58851a4a9b994ed33ebc8fb3eae76816f48a5
[INFO] running `Command { std: "docker" "start" "-a" "90944c634c61bedc6c6ef64970d58851a4a9b994ed33ebc8fb3eae76816f48a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling text_unit v0.1.10
[INFO] [stderr]    Compiling parse_tree v0.0.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `Command { std: "docker" "inspect" "90944c634c61bedc6c6ef64970d58851a4a9b994ed33ebc8fb3eae76816f48a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90944c634c61bedc6c6ef64970d58851a4a9b994ed33ebc8fb3eae76816f48a5", kill_on_drop: false }`
[INFO] [stdout] 90944c634c61bedc6c6ef64970d58851a4a9b994ed33ebc8fb3eae76816f48a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 2ef005de1fd1abf5fa044d49958c27c5c6186d7eba4a9d4bd563ef1059c2b4fe
[INFO] running `Command { std: "docker" "start" "-a" "2ef005de1fd1abf5fa044d49958c27c5c6186d7eba4a9d4bd563ef1059c2b4fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling parse_tree v0.0.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "2ef005de1fd1abf5fa044d49958c27c5c6186d7eba4a9d4bd563ef1059c2b4fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ef005de1fd1abf5fa044d49958c27c5c6186d7eba4a9d4bd563ef1059c2b4fe", kill_on_drop: false }`
[INFO] [stdout] 2ef005de1fd1abf5fa044d49958c27c5c6186d7eba4a9d4bd563ef1059c2b4fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 0c09ecb616ddf277ccb785c8ec3b62c07fbd13c27f4974443748a62c36e00ae5
[INFO] running `Command { std: "docker" "start" "-a" "0c09ecb616ddf277ccb785c8ec3b62c07fbd13c27f4974443748a62c36e00ae5", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/parse_tree-04e5595523c77581)
[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]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-93f0fd7bff0cbdf4)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test bottom_up ... ok
[INFO] [stdout] test top_down ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests parse_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" "0c09ecb616ddf277ccb785c8ec3b62c07fbd13c27f4974443748a62c36e00ae5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c09ecb616ddf277ccb785c8ec3b62c07fbd13c27f4974443748a62c36e00ae5", kill_on_drop: false }`
[INFO] [stdout] 0c09ecb616ddf277ccb785c8ec3b62c07fbd13c27f4974443748a62c36e00ae5