[INFO] fetching crate varintbuf 0.1.0...
[INFO] testing varintbuf-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate varintbuf 0.1.0 into /workspace/builds/worker-32/source
[INFO] validating manifest of crates.io crate varintbuf 0.1.0 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 varintbuf 0.1.0
[INFO] finished tweaking crates.io crate varintbuf 0.1.0
[INFO] tweaked toml for crates.io crate varintbuf 0.1.0 written to /workspace/builds/worker-32/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-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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] 7cf48bb6c07a36ee1cc5e38e9c3aa93810401e17f907b01b05a73574aa214d1a
[INFO] running `Command { std: "docker" "start" "-a" "7cf48bb6c07a36ee1cc5e38e9c3aa93810401e17f907b01b05a73574aa214d1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cf48bb6c07a36ee1cc5e38e9c3aa93810401e17f907b01b05a73574aa214d1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cf48bb6c07a36ee1cc5e38e9c3aa93810401e17f907b01b05a73574aa214d1a", kill_on_drop: false }`
[INFO] [stdout] 7cf48bb6c07a36ee1cc5e38e9c3aa93810401e17f907b01b05a73574aa214d1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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] 9f6fce3f972a08be15bf38f839d6b757d9c36adad2c5d921d2be904265582953
[INFO] running `Command { std: "docker" "start" "-a" "9f6fce3f972a08be15bf38f839d6b757d9c36adad2c5d921d2be904265582953", kill_on_drop: false }`
[INFO] [stderr]    Compiling varintbuf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "9f6fce3f972a08be15bf38f839d6b757d9c36adad2c5d921d2be904265582953", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f6fce3f972a08be15bf38f839d6b757d9c36adad2c5d921d2be904265582953", kill_on_drop: false }`
[INFO] [stdout] 9f6fce3f972a08be15bf38f839d6b757d9c36adad2c5d921d2be904265582953
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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] b5b289ef4896955cd72de02a2fc2aba4887ef9d67ce8cf6056f55618344b8ff1
[INFO] running `Command { std: "docker" "start" "-a" "b5b289ef4896955cd72de02a2fc2aba4887ef9d67ce8cf6056f55618344b8ff1", kill_on_drop: false }`
[INFO] [stderr]    Compiling varintbuf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "b5b289ef4896955cd72de02a2fc2aba4887ef9d67ce8cf6056f55618344b8ff1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5b289ef4896955cd72de02a2fc2aba4887ef9d67ce8cf6056f55618344b8ff1", kill_on_drop: false }`
[INFO] [stdout] b5b289ef4896955cd72de02a2fc2aba4887ef9d67ce8cf6056f55618344b8ff1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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] de2cf143395e932f9b4be3359ac1b373596d0e161f49d57221896bc9a4900d4c
[INFO] running `Command { std: "docker" "start" "-a" "de2cf143395e932f9b4be3359ac1b373596d0e161f49d57221896bc9a4900d4c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/varintbuf-cba4bc9516c7f83b)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stderr]    Doc-tests varintbuf
[INFO] [stdout] test tests::encoded2 ... ok
[INFO] [stdout] test tests::test_decode ... ok
[INFO] [stdout] test tests::test_encode ... ok
[INFO] [stdout] test tests::test_length ... ok
[INFO] [stdout] test tests::test_signed_decode ... ok
[INFO] [stdout] test tests::test_signed_length ... ok
[INFO] [stdout] test tests::test_signed_encode ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "de2cf143395e932f9b4be3359ac1b373596d0e161f49d57221896bc9a4900d4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de2cf143395e932f9b4be3359ac1b373596d0e161f49d57221896bc9a4900d4c", kill_on_drop: false }`
[INFO] [stdout] de2cf143395e932f9b4be3359ac1b373596d0e161f49d57221896bc9a4900d4c