[INFO] cloning repository https://github.com/gamma-delta/spider-dance
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gamma-delta/spider-dance" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgamma-delta%2Fspider-dance", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgamma-delta%2Fspider-dance'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bc12072c887c4655571520a69598a2778fc3193d
[INFO] testing gamma-delta/spider-dance against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgamma-delta%2Fspider-dance" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gamma-delta/spider-dance on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gamma-delta/spider-dance
[INFO] finished tweaking git repo https://github.com/gamma-delta/spider-dance
[INFO] tweaked toml for git repo https://github.com/gamma-delta/spider-dance written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/gamma-delta/spider-dance already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07813af51faaca7db2a57c71211ef52f819d7d55bb334d5ba23f0b21f22615e6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "07813af51faaca7db2a57c71211ef52f819d7d55bb334d5ba23f0b21f22615e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07813af51faaca7db2a57c71211ef52f819d7d55bb334d5ba23f0b21f22615e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07813af51faaca7db2a57c71211ef52f819d7d55bb334d5ba23f0b21f22615e6", kill_on_drop: false }`
[INFO] [stdout] 07813af51faaca7db2a57c71211ef52f819d7d55bb334d5ba23f0b21f22615e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4deb90bbfc51022ea3bb2480dc988967f95fb01f9e724f6bea870dddf8c1d30c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4deb90bbfc51022ea3bb2480dc988967f95fb01f9e724f6bea870dddf8c1d30c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling schemars v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling dyn-clone v1.0.4
[INFO] [stderr]    Compiling json_comments v0.2.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling serde_derive_internals v0.25.0
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling schemars_derive v0.8.0
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling serde_json v1.0.62
[INFO] [stderr]    Compiling spider-dance v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `fold_first` found for struct `std::iter::Chain` in the current scope
[INFO] [stdout]    --> src/tree.rs:185:14
[INFO] [stdout]     |
[INFO] [stdout] 185 |             .fold_first(|(accx, accy), (x, y)| (accx.max(x), accy.max(y)))
[INFO] [stdout]     |              ^^^^^^^^^^ method not found in `std::iter::Chain<std::iter::Once<(f32, f32)>, std::iter::Map<std::slice::Iter<'_, PartialDraw>, [closure@src/tree.rs:184:40: 184:65]>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `spider-dance`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "4deb90bbfc51022ea3bb2480dc988967f95fb01f9e724f6bea870dddf8c1d30c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4deb90bbfc51022ea3bb2480dc988967f95fb01f9e724f6bea870dddf8c1d30c", kill_on_drop: false }`
[INFO] [stdout] 4deb90bbfc51022ea3bb2480dc988967f95fb01f9e724f6bea870dddf8c1d30c