[INFO] fetching crate derive-diff 0.2.5...
[INFO] testing derive-diff-0.2.5 against 1.55.0 for beta-1.56-1
[INFO] extracting crate derive-diff 0.2.5 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate derive-diff 0.2.5 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 derive-diff 0.2.5
[INFO] finished tweaking crates.io crate derive-diff 0.2.5
[INFO] tweaked toml for crates.io crate derive-diff 0.2.5 written to /workspace/builds/worker-2/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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded struct-diff v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 0cd1a7d310fedb90bc30e3dfe7f5655529f5fb98310ab6f1231b4763b155bda6
[INFO] running `Command { std: "docker" "start" "-a" "0cd1a7d310fedb90bc30e3dfe7f5655529f5fb98310ab6f1231b4763b155bda6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cd1a7d310fedb90bc30e3dfe7f5655529f5fb98310ab6f1231b4763b155bda6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cd1a7d310fedb90bc30e3dfe7f5655529f5fb98310ab6f1231b4763b155bda6", kill_on_drop: false }`
[INFO] [stdout] 0cd1a7d310fedb90bc30e3dfe7f5655529f5fb98310ab6f1231b4763b155bda6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] ca0fccb244f33a452d684b5dddb0b44e6f0fdd8fda651209e00249ea1d0b368b
[INFO] running `Command { std: "docker" "start" "-a" "ca0fccb244f33a452d684b5dddb0b44e6f0fdd8fda651209e00249ea1d0b368b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling struct-diff v0.2.3
[INFO] [stderr]    Compiling derive-diff v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.96s
[INFO] running `Command { std: "docker" "inspect" "ca0fccb244f33a452d684b5dddb0b44e6f0fdd8fda651209e00249ea1d0b368b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca0fccb244f33a452d684b5dddb0b44e6f0fdd8fda651209e00249ea1d0b368b", kill_on_drop: false }`
[INFO] [stdout] ca0fccb244f33a452d684b5dddb0b44e6f0fdd8fda651209e00249ea1d0b368b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 9aab3e2f48a6f6c633bdd66628b2b93117d788e424f1078a18738d48d1d5b757
[INFO] running `Command { std: "docker" "start" "-a" "9aab3e2f48a6f6c633bdd66628b2b93117d788e424f1078a18738d48d1d5b757", kill_on_drop: false }`
[INFO] [stderr]    Compiling derive-diff v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "9aab3e2f48a6f6c633bdd66628b2b93117d788e424f1078a18738d48d1d5b757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9aab3e2f48a6f6c633bdd66628b2b93117d788e424f1078a18738d48d1d5b757", kill_on_drop: false }`
[INFO] [stdout] 9aab3e2f48a6f6c633bdd66628b2b93117d788e424f1078a18738d48d1d5b757
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 450e9ffc1e9c1bf744b4adbd145d3217ea649d313d320ad2b5dde2fbf69236d8
[INFO] running `Command { std: "docker" "start" "-a" "450e9ffc1e9c1bf744b4adbd145d3217ea649d313d320ad2b5dde2fbf69236d8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/derive_diff-c54aa44ba40b97fb)
[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]    Doc-tests derive-diff
[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" "450e9ffc1e9c1bf744b4adbd145d3217ea649d313d320ad2b5dde2fbf69236d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "450e9ffc1e9c1bf744b4adbd145d3217ea649d313d320ad2b5dde2fbf69236d8", kill_on_drop: false }`
[INFO] [stdout] 450e9ffc1e9c1bf744b4adbd145d3217ea649d313d320ad2b5dde2fbf69236d8