[INFO] fetching crate vlugger 0.3.0...
[INFO] testing vlugger-0.3.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate vlugger 0.3.0 into /workspace/builds/worker-30/source
[INFO] validating manifest of crates.io crate vlugger 0.3.0 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 vlugger 0.3.0
[INFO] finished tweaking crates.io crate vlugger 0.3.0
[INFO] tweaked toml for crates.io crate vlugger 0.3.0 written to /workspace/builds/worker-30/source/Cargo.toml
[INFO] crate crates.io crate vlugger 0.3.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] 1c1003fb78ac9e6b1b3d859c8ede1ef81f06be2e73c94a48dcff29ff5e0df95b
[INFO] running `Command { std: "docker" "start" "-a" "1c1003fb78ac9e6b1b3d859c8ede1ef81f06be2e73c94a48dcff29ff5e0df95b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c1003fb78ac9e6b1b3d859c8ede1ef81f06be2e73c94a48dcff29ff5e0df95b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c1003fb78ac9e6b1b3d859c8ede1ef81f06be2e73c94a48dcff29ff5e0df95b", kill_on_drop: false }`
[INFO] [stdout] 1c1003fb78ac9e6b1b3d859c8ede1ef81f06be2e73c94a48dcff29ff5e0df95b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] af33ae38fe5a21b6a7d7104f01f7a6c5b4f47aeea874f01da353ee4147b5856a
[INFO] running `Command { std: "docker" "start" "-a" "af33ae38fe5a21b6a7d7104f01f7a6c5b4f47aeea874f01da353ee4147b5856a", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling dirs v3.0.1
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling vlugger v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.92s
[INFO] running `Command { std: "docker" "inspect" "af33ae38fe5a21b6a7d7104f01f7a6c5b4f47aeea874f01da353ee4147b5856a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af33ae38fe5a21b6a7d7104f01f7a6c5b4f47aeea874f01da353ee4147b5856a", kill_on_drop: false }`
[INFO] [stdout] af33ae38fe5a21b6a7d7104f01f7a6c5b4f47aeea874f01da353ee4147b5856a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] 924d192d017de9bc3cec5296f7d56a4474fbe310aa777504810c38a58a59f6dc
[INFO] running `Command { std: "docker" "start" "-a" "924d192d017de9bc3cec5296f7d56a4474fbe310aa777504810c38a58a59f6dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling vlugger v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "924d192d017de9bc3cec5296f7d56a4474fbe310aa777504810c38a58a59f6dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "924d192d017de9bc3cec5296f7d56a4474fbe310aa777504810c38a58a59f6dc", kill_on_drop: false }`
[INFO] [stdout] 924d192d017de9bc3cec5296f7d56a4474fbe310aa777504810c38a58a59f6dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] 71ceb7f9531df814c8b902a0f5b0825966ab27cc161d840cf05a43f7f7a5ac89
[INFO] running `Command { std: "docker" "start" "-a" "71ceb7f9531df814c8b902a0f5b0825966ab27cc161d840cf05a43f7f7a5ac89", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/vlugger-fb001a5b7b07d474)
[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" "71ceb7f9531df814c8b902a0f5b0825966ab27cc161d840cf05a43f7f7a5ac89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71ceb7f9531df814c8b902a0f5b0825966ab27cc161d840cf05a43f7f7a5ac89", kill_on_drop: false }`
[INFO] [stdout] 71ceb7f9531df814c8b902a0f5b0825966ab27cc161d840cf05a43f7f7a5ac89