[INFO] fetching crate racetrack 0.0.2...
[INFO] testing racetrack-0.0.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate racetrack 0.0.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate racetrack 0.0.2 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 racetrack 0.0.2
[INFO] finished tweaking crates.io crate racetrack 0.0.2
[INFO] tweaked toml for crates.io crate racetrack 0.0.2 written to /workspace/builds/worker-7/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]  Downloading crates ...
[INFO] [stderr]   Downloaded racetrack-proc-macro v0.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 2a95d65fe277898fdac58a6e7b78426aa767a568ec00f9dc860d5e16e035c856
[INFO] running `Command { std: "docker" "start" "-a" "2a95d65fe277898fdac58a6e7b78426aa767a568ec00f9dc860d5e16e035c856", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a95d65fe277898fdac58a6e7b78426aa767a568ec00f9dc860d5e16e035c856", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a95d65fe277898fdac58a6e7b78426aa767a568ec00f9dc860d5e16e035c856", kill_on_drop: false }`
[INFO] [stdout] 2a95d65fe277898fdac58a6e7b78426aa767a568ec00f9dc860d5e16e035c856
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] cd5931719372e4e04bda8f45cb740f1fffb24cf13310a46380f480625106b800
[INFO] running `Command { std: "docker" "start" "-a" "cd5931719372e4e04bda8f45cb740f1fffb24cf13310a46380f480625106b800", kill_on_drop: false }`
[INFO] [stderr]    Compiling racetrack-proc-macro v0.0.1
[INFO] [stderr]    Compiling racetrack v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.11s
[INFO] running `Command { std: "docker" "inspect" "cd5931719372e4e04bda8f45cb740f1fffb24cf13310a46380f480625106b800", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd5931719372e4e04bda8f45cb740f1fffb24cf13310a46380f480625106b800", kill_on_drop: false }`
[INFO] [stdout] cd5931719372e4e04bda8f45cb740f1fffb24cf13310a46380f480625106b800
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] d48e8927bf8788eb0ebade89fd5f2cb7e115df59fa1664391e0419a94a73d919
[INFO] running `Command { std: "docker" "start" "-a" "d48e8927bf8788eb0ebade89fd5f2cb7e115df59fa1664391e0419a94a73d919", kill_on_drop: false }`
[INFO] [stderr]    Compiling racetrack v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "d48e8927bf8788eb0ebade89fd5f2cb7e115df59fa1664391e0419a94a73d919", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d48e8927bf8788eb0ebade89fd5f2cb7e115df59fa1664391e0419a94a73d919", kill_on_drop: false }`
[INFO] [stdout] d48e8927bf8788eb0ebade89fd5f2cb7e115df59fa1664391e0419a94a73d919
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 95b61abecedf1858e273c9d5ec155f51999f5e641e399a1feefe45578ae7de34
[INFO] running `Command { std: "docker" "start" "-a" "95b61abecedf1858e273c9d5ec155f51999f5e641e399a1feefe45578ae7de34", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/racetrack-2ada84b6e1296793)
[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]      Running tests/track.rs (/opt/rustwide/target/debug/deps/track-e5427e8ca95f24a9)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test_regression1 ... ok
[INFO] [stdout] test test_regression2 ... ok
[INFO] [stdout] test test_track_fn ... ok
[INFO] [stdout] test test_track_static_struct ... ok
[INFO] [stdout] test test_track_struct ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests racetrack
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] test src/lib.rs - (line 35) ... ok
[INFO] [stdout] test src/tracker.rs - tracker::Tracker (line 30) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.46s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "95b61abecedf1858e273c9d5ec155f51999f5e641e399a1feefe45578ae7de34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95b61abecedf1858e273c9d5ec155f51999f5e641e399a1feefe45578ae7de34", kill_on_drop: false }`
[INFO] [stdout] 95b61abecedf1858e273c9d5ec155f51999f5e641e399a1feefe45578ae7de34