[INFO] fetching crate treeculler 0.2.0...
[INFO] testing treeculler-0.2.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate treeculler 0.2.0 into /workspace/builds/worker-28/source
[INFO] validating manifest of crates.io crate treeculler 0.2.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate treeculler 0.2.0
[INFO] finished tweaking crates.io crate treeculler 0.2.0
[INFO] tweaked toml for crates.io crate treeculler 0.2.0 written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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" "+1.60.0" "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 libm v0.2.2
[INFO] [stderr]   Downloaded vek v0.14.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 124b7abbcb43744e5cf84503d70e80c07a09f3145c36662445b45a2fdf1994eb
[INFO] running `Command { std: "docker" "start" "-a" "124b7abbcb43744e5cf84503d70e80c07a09f3145c36662445b45a2fdf1994eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "124b7abbcb43744e5cf84503d70e80c07a09f3145c36662445b45a2fdf1994eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "124b7abbcb43744e5cf84503d70e80c07a09f3145c36662445b45a2fdf1994eb", kill_on_drop: false }`
[INFO] [stdout] 124b7abbcb43744e5cf84503d70e80c07a09f3145c36662445b45a2fdf1994eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f1f3ee32ed4ea6b7225f154c6843547fd4ea96a302ec88202bb35af17ed0d54
[INFO] running `Command { std: "docker" "start" "-a" "2f1f3ee32ed4ea6b7225f154c6843547fd4ea96a302ec88202bb35af17ed0d54", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling vek v0.14.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling approx v0.4.0
[INFO] [stderr]    Compiling treeculler v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.53s
[INFO] running `Command { std: "docker" "inspect" "2f1f3ee32ed4ea6b7225f154c6843547fd4ea96a302ec88202bb35af17ed0d54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f1f3ee32ed4ea6b7225f154c6843547fd4ea96a302ec88202bb35af17ed0d54", kill_on_drop: false }`
[INFO] [stdout] 2f1f3ee32ed4ea6b7225f154c6843547fd4ea96a302ec88202bb35af17ed0d54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 966dccbd1d4d15bd0d5f035006299ef0993de432df6dba279125a7bc05a8cabb
[INFO] running `Command { std: "docker" "start" "-a" "966dccbd1d4d15bd0d5f035006299ef0993de432df6dba279125a7bc05a8cabb", kill_on_drop: false }`
[INFO] [stderr]    Compiling treeculler v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "966dccbd1d4d15bd0d5f035006299ef0993de432df6dba279125a7bc05a8cabb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "966dccbd1d4d15bd0d5f035006299ef0993de432df6dba279125a7bc05a8cabb", kill_on_drop: false }`
[INFO] [stdout] 966dccbd1d4d15bd0d5f035006299ef0993de432df6dba279125a7bc05a8cabb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5f728b64299fc30fcac10df9de1030857668360d458754a2f3b94a40ba6c7a07
[INFO] running `Command { std: "docker" "start" "-a" "5f728b64299fc30fcac10df9de1030857668360d458754a2f3b94a40ba6c7a07", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/treeculler-0d2b8b81f52d6343)
[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 treeculler
[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" "5f728b64299fc30fcac10df9de1030857668360d458754a2f3b94a40ba6c7a07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f728b64299fc30fcac10df9de1030857668360d458754a2f3b94a40ba6c7a07", kill_on_drop: false }`
[INFO] [stdout] 5f728b64299fc30fcac10df9de1030857668360d458754a2f3b94a40ba6c7a07