[INFO] fetching crate parse_tree 0.0.7...
[INFO] testing parse_tree-0.0.7 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate parse_tree 0.0.7 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate parse_tree 0.0.7 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded text_unit v0.1.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a88b80adf7baada059b334fd2837932c3b5e6a6f44c5cc74048d38e147ba016
[INFO] running `Command { std: "docker" "start" "-a" "6a88b80adf7baada059b334fd2837932c3b5e6a6f44c5cc74048d38e147ba016", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a88b80adf7baada059b334fd2837932c3b5e6a6f44c5cc74048d38e147ba016", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a88b80adf7baada059b334fd2837932c3b5e6a6f44c5cc74048d38e147ba016", kill_on_drop: false }`
[INFO] [stdout] 6a88b80adf7baada059b334fd2837932c3b5e6a6f44c5cc74048d38e147ba016
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e513ee4e89bd9abe24c9687ccb5f1341414a5d2b537beaf0a28da5dd88c64b66
[INFO] running `Command { std: "docker" "start" "-a" "e513ee4e89bd9abe24c9687ccb5f1341414a5d2b537beaf0a28da5dd88c64b66", 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 1.27s
[INFO] running `Command { std: "docker" "inspect" "e513ee4e89bd9abe24c9687ccb5f1341414a5d2b537beaf0a28da5dd88c64b66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e513ee4e89bd9abe24c9687ccb5f1341414a5d2b537beaf0a28da5dd88c64b66", kill_on_drop: false }`
[INFO] [stdout] e513ee4e89bd9abe24c9687ccb5f1341414a5d2b537beaf0a28da5dd88c64b66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a640b8b8a80810474e2b1abbd3cd989981fa7969a94ef239399bcf2dc44f5d0a
[INFO] running `Command { std: "docker" "start" "-a" "a640b8b8a80810474e2b1abbd3cd989981fa7969a94ef239399bcf2dc44f5d0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling parse_tree v0.0.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "a640b8b8a80810474e2b1abbd3cd989981fa7969a94ef239399bcf2dc44f5d0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a640b8b8a80810474e2b1abbd3cd989981fa7969a94ef239399bcf2dc44f5d0a", kill_on_drop: false }`
[INFO] [stdout] a640b8b8a80810474e2b1abbd3cd989981fa7969a94ef239399bcf2dc44f5d0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6d2be0fbe047ae24c0df7a8f3b55e88677a440f9f076cd80b96fd861b86d0ed1
[INFO] running `Command { std: "docker" "start" "-a" "6d2be0fbe047ae24c0df7a8f3b55e88677a440f9f076cd80b96fd861b86d0ed1", 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-c4b13aeda3e9e641)
[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-95e7289a418c75d8)
[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 0.01s
[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" "6d2be0fbe047ae24c0df7a8f3b55e88677a440f9f076cd80b96fd861b86d0ed1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d2be0fbe047ae24c0df7a8f3b55e88677a440f9f076cd80b96fd861b86d0ed1", kill_on_drop: false }`
[INFO] [stdout] 6d2be0fbe047ae24c0df7a8f3b55e88677a440f9f076cd80b96fd861b86d0ed1