[INFO] cloning repository https://github.com/pulpdrew/heatmap
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pulpdrew/heatmap" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpulpdrew%2Fheatmap", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpulpdrew%2Fheatmap'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b9ad2ce8ebfcca59f51dbc95e21e28f0a54797f5
[INFO] checking pulpdrew/heatmap against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpulpdrew%2Fheatmap" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pulpdrew/heatmap on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pulpdrew/heatmap
[INFO] finished tweaking git repo https://github.com/pulpdrew/heatmap
[INFO] tweaked toml for git repo https://github.com/pulpdrew/heatmap written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/pulpdrew/heatmap already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa2ecaa8e8f9a6cf457a467638f02ce1d4a0c471261bc0c4a7d281f034fb87c7
[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" "aa2ecaa8e8f9a6cf457a467638f02ce1d4a0c471261bc0c4a7d281f034fb87c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa2ecaa8e8f9a6cf457a467638f02ce1d4a0c471261bc0c4a7d281f034fb87c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa2ecaa8e8f9a6cf457a467638f02ce1d4a0c471261bc0c4a7d281f034fb87c7", kill_on_drop: false }`
[INFO] [stdout] aa2ecaa8e8f9a6cf457a467638f02ce1d4a0c471261bc0c4a7d281f034fb87c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 065c8602086d9cf84524f7f9f40518f43878be1d116eb576dd248faa2a380fa2
[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" "065c8602086d9cf84524f7f9f40518f43878be1d116eb576dd248faa2a380fa2", kill_on_drop: false }`
[INFO] [stderr]     Checking quick-xml v0.20.0
[INFO] [stderr]     Checking heatmap v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `fold_first` found for struct `Map<std::slice::Iter<'_, Point>, [closure@src/path.rs:130:22: 130:58]>` in the current scope
[INFO] [stdout]    --> src/path.rs:131:18
[INFO] [stdout]     |
[INFO] [stdout] 131 |                 .fold_first(|array, next| array + "," + &next)
[INFO] [stdout]     |                  ^^^^^^^^^^ method not found in `Map<std::slice::Iter<'_, Point>, [closure@src/path.rs:130:22: 130:58]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `fold_first` found for struct `Map<std::slice::Iter<'_, Point>, [closure@src/path.rs:130:22: 130:58]>` in the current scope
[INFO] [stdout]    --> src/path.rs:131:18
[INFO] [stdout]     |
[INFO] [stdout] 131 |                 .fold_first(|array, next| array + "," + &next)
[INFO] [stdout]     |                  ^^^^^^^^^^ method not found in `Map<std::slice::Iter<'_, Point>, [closure@src/path.rs:130:22: 130:58]>`
[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] [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 `heatmap`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "065c8602086d9cf84524f7f9f40518f43878be1d116eb576dd248faa2a380fa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "065c8602086d9cf84524f7f9f40518f43878be1d116eb576dd248faa2a380fa2", kill_on_drop: false }`
[INFO] [stdout] 065c8602086d9cf84524f7f9f40518f43878be1d116eb576dd248faa2a380fa2