[INFO] fetching crate vlog 0.1.4...
[INFO] testing vlog-0.1.4 against 1.55.0 for beta-1.56-1
[INFO] extracting crate vlog 0.1.4 into /workspace/builds/worker-41/source
[INFO] validating manifest of crates.io crate vlog 0.1.4 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 vlog 0.1.4
[INFO] finished tweaking crates.io crate vlog 0.1.4
[INFO] tweaked toml for crates.io crate vlog 0.1.4 written to /workspace/builds/worker-41/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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] ffdee8c1ee4f6c2dce70f1149b92d4d684e64614c29bb478fd7cc3216b6edc65
[INFO] running `Command { std: "docker" "start" "-a" "ffdee8c1ee4f6c2dce70f1149b92d4d684e64614c29bb478fd7cc3216b6edc65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ffdee8c1ee4f6c2dce70f1149b92d4d684e64614c29bb478fd7cc3216b6edc65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffdee8c1ee4f6c2dce70f1149b92d4d684e64614c29bb478fd7cc3216b6edc65", kill_on_drop: false }`
[INFO] [stdout] ffdee8c1ee4f6c2dce70f1149b92d4d684e64614c29bb478fd7cc3216b6edc65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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] 8969fd3cc618fce35b6344bfc9ed2ea5c58f7ebde0eb8642ebc2489a7403e400
[INFO] running `Command { std: "docker" "start" "-a" "8969fd3cc618fce35b6344bfc9ed2ea5c58f7ebde0eb8642ebc2489a7403e400", kill_on_drop: false }`
[INFO] [stderr]    Compiling vlog v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "8969fd3cc618fce35b6344bfc9ed2ea5c58f7ebde0eb8642ebc2489a7403e400", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8969fd3cc618fce35b6344bfc9ed2ea5c58f7ebde0eb8642ebc2489a7403e400", kill_on_drop: false }`
[INFO] [stdout] 8969fd3cc618fce35b6344bfc9ed2ea5c58f7ebde0eb8642ebc2489a7403e400
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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] 888576eb7d606f07f49b1fef9441cb6740611656ece6c69010f1dec73da1a55b
[INFO] running `Command { std: "docker" "start" "-a" "888576eb7d606f07f49b1fef9441cb6740611656ece6c69010f1dec73da1a55b", kill_on_drop: false }`
[INFO] [stderr]    Compiling vlog v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "888576eb7d606f07f49b1fef9441cb6740611656ece6c69010f1dec73da1a55b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "888576eb7d606f07f49b1fef9441cb6740611656ece6c69010f1dec73da1a55b", kill_on_drop: false }`
[INFO] [stdout] 888576eb7d606f07f49b1fef9441cb6740611656ece6c69010f1dec73da1a55b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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] f9556645654d01236152769ceace3e80614a3baf408b3cf2ac5d2e25d9ad4bb8
[INFO] running `Command { std: "docker" "start" "-a" "f9556645654d01236152769ceace3e80614a3baf408b3cf2ac5d2e25d9ad4bb8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/vlog-54046c2251f8c85c)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_set_get ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests vlog
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - set_verbosity_level (line 72) ... ok
[INFO] [stdout] test src/lib.rs - get_verbosity_level (line 89) ... ok
[INFO] [stdout] test src/lib.rs - (line 13) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.47s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f9556645654d01236152769ceace3e80614a3baf408b3cf2ac5d2e25d9ad4bb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9556645654d01236152769ceace3e80614a3baf408b3cf2ac5d2e25d9ad4bb8", kill_on_drop: false }`
[INFO] [stdout] f9556645654d01236152769ceace3e80614a3baf408b3cf2ac5d2e25d9ad4bb8