[INFO] cloning repository https://github.com/ntzm/aoc-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ntzm/aoc-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fntzm%2Faoc-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fntzm%2Faoc-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bd3a9f12dd0c805b877ad3797423a2cfbf1db335
[INFO] checking ntzm/aoc-2020 against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fntzm%2Faoc-2020" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ntzm/aoc-2020 on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ntzm/aoc-2020
[INFO] finished tweaking git repo https://github.com/ntzm/aoc-2020
[INFO] tweaked toml for git repo https://github.com/ntzm/aoc-2020 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ntzm/aoc-2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cf1f5d3ff5739b92dddc811626f5d73b78582137d89ba2fda8da3a0488f526c4
[INFO] running `Command { std: "docker" "start" "-a" "cf1f5d3ff5739b92dddc811626f5d73b78582137d89ba2fda8da3a0488f526c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf1f5d3ff5739b92dddc811626f5d73b78582137d89ba2fda8da3a0488f526c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf1f5d3ff5739b92dddc811626f5d73b78582137d89ba2fda8da3a0488f526c4", kill_on_drop: false }`
[INFO] [stdout] cf1f5d3ff5739b92dddc811626f5d73b78582137d89ba2fda8da3a0488f526c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d186cafddbc7d7c962941a9e52cbe1300b58feb3cb2a4b794641e8bd48937ec1
[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" "d186cafddbc7d7c962941a9e52cbe1300b58feb3cb2a4b794641e8bd48937ec1", kill_on_drop: false }`
[INFO] [stderr]     Checking aoc-2020-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `fold_first` found for struct `Map<std::str::Split<'_, &str>, [closure@src/day_06.rs:22:22: 22:73]>` in the current scope
[INFO] [stdout]   --> src/day_06.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |                 .fold_first(|a, b| a.intersection(&b).cloned().collect())
[INFO] [stdout]    |                  ^^^^^^^^^^ method not found in `Map<std::str::Split<'_, &str>, [closure@src/day_06.rs:22:22: 22:73]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `fold_first` found for struct `Map<std::str::Split<'_, &str>, [closure@src/day_06.rs:22:22: 22:73]>` in the current scope
[INFO] [stdout]   --> src/day_06.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |                 .fold_first(|a, b| a.intersection(&b).cloned().collect())
[INFO] [stdout]    |                  ^^^^^^^^^^ method not found in `Map<std::str::Split<'_, &str>, [closure@src/day_06.rs:22:22: 22:73]>`
[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 `aoc-2020-rs`
[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" "d186cafddbc7d7c962941a9e52cbe1300b58feb3cb2a4b794641e8bd48937ec1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d186cafddbc7d7c962941a9e52cbe1300b58feb3cb2a4b794641e8bd48937ec1", kill_on_drop: false }`
[INFO] [stdout] d186cafddbc7d7c962941a9e52cbe1300b58feb3cb2a4b794641e8bd48937ec1