[INFO] fetching crate sulfa 0.1.1...
[INFO] testing sulfa-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate sulfa 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate sulfa 0.1.1 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 sulfa 0.1.1
[INFO] finished tweaking crates.io crate sulfa 0.1.1
[INFO] tweaked toml for crates.io crate sulfa 0.1.1 written to /workspace/builds/worker-8/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] [stderr]     Blocking waiting for file lock on package cache
[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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 51cc4471a3820d244f5d3b410ad6293b289368db30265c383204641a487b00a4
[INFO] running `Command { std: "docker" "start" "-a" "51cc4471a3820d244f5d3b410ad6293b289368db30265c383204641a487b00a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51cc4471a3820d244f5d3b410ad6293b289368db30265c383204641a487b00a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51cc4471a3820d244f5d3b410ad6293b289368db30265c383204641a487b00a4", kill_on_drop: false }`
[INFO] [stdout] 51cc4471a3820d244f5d3b410ad6293b289368db30265c383204641a487b00a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] d76fcf0bd463d090294651f928dc31cc66423d8cdc819347c40da6729a7880c0
[INFO] running `Command { std: "docker" "start" "-a" "d76fcf0bd463d090294651f928dc31cc66423d8cdc819347c40da6729a7880c0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling sulfa v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "d76fcf0bd463d090294651f928dc31cc66423d8cdc819347c40da6729a7880c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d76fcf0bd463d090294651f928dc31cc66423d8cdc819347c40da6729a7880c0", kill_on_drop: false }`
[INFO] [stdout] d76fcf0bd463d090294651f928dc31cc66423d8cdc819347c40da6729a7880c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 1f63d5f326424a74da5964cdf09f96dd3b0f78bead7093860300910808b3701d
[INFO] running `Command { std: "docker" "start" "-a" "1f63d5f326424a74da5964cdf09f96dd3b0f78bead7093860300910808b3701d", kill_on_drop: false }`
[INFO] [stderr]    Compiling sulfa v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "1f63d5f326424a74da5964cdf09f96dd3b0f78bead7093860300910808b3701d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f63d5f326424a74da5964cdf09f96dd3b0f78bead7093860300910808b3701d", kill_on_drop: false }`
[INFO] [stdout] 1f63d5f326424a74da5964cdf09f96dd3b0f78bead7093860300910808b3701d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] e57d7c015d86eabd8fa5ef63c5664d251ad5bf62154ce4fda1944555f33247a4
[INFO] running `Command { std: "docker" "start" "-a" "e57d7c015d86eabd8fa5ef63c5664d251ad5bf62154ce4fda1944555f33247a4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sulfa-b3a621308652f41f)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test tree::bst::tests::test_catalan ... ok
[INFO] [stdout] test tree::avl::tests::test_is_balanced ... ok
[INFO] [stdout] test tree::depth::tests::max_depth ... ok
[INFO] [stdout] test tree::depth::tests::min_depth ... ok
[INFO] [stdout] test tree::bst::tests::test_generate_all ... ok
[INFO] [stdout] test tree::order::tests::inorder_bfs ... ok
[INFO] [stdout] test tree::order::tests::levelorder_bfs ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sulfa
[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" "e57d7c015d86eabd8fa5ef63c5664d251ad5bf62154ce4fda1944555f33247a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e57d7c015d86eabd8fa5ef63c5664d251ad5bf62154ce4fda1944555f33247a4", kill_on_drop: false }`
[INFO] [stdout] e57d7c015d86eabd8fa5ef63c5664d251ad5bf62154ce4fda1944555f33247a4