[INFO] cloning repository https://github.com/hfcredidio/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/hfcredidio/aoc_2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhfcredidio%2Faoc_2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhfcredidio%2Faoc_2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d383047782ceea59e53e308037e610f7737b7ca
[INFO] checking hfcredidio/aoc_2020 against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhfcredidio%2Faoc_2020" "/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/hfcredidio/aoc_2020 on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hfcredidio/aoc_2020
[INFO] finished tweaking git repo https://github.com/hfcredidio/aoc_2020
[INFO] tweaked toml for git repo https://github.com/hfcredidio/aoc_2020 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/hfcredidio/aoc_2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fbf652e24ed240fdf10ea1e24f06702729ca528843be46c29bfe608602559848
[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" "fbf652e24ed240fdf10ea1e24f06702729ca528843be46c29bfe608602559848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbf652e24ed240fdf10ea1e24f06702729ca528843be46c29bfe608602559848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbf652e24ed240fdf10ea1e24f06702729ca528843be46c29bfe608602559848", kill_on_drop: false }`
[INFO] [stdout] fbf652e24ed240fdf10ea1e24f06702729ca528843be46c29bfe608602559848
[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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 378dcf224cecb2689435cc93fc7bd48acb14460f8f660784b30b7fff3f6e47f0
[INFO] running `Command { std: "docker" "start" "-a" "378dcf224cecb2689435cc93fc7bd48acb14460f8f660784b30b7fff3f6e47f0", kill_on_drop: false }`
[INFO] [stderr]     Checking aoc_2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `fold_first` found for struct `Filter<Map<std::slice::Iter<'_, Vec<u64>>, [closure@src/day16.rs:91:14: 96:10]>, [closure@src/day16.rs:97:17: 97:76]>` in the current scope
[INFO] [stdout]   --> src/day16.rs:98:10
[INFO] [stdout]    |
[INFO] [stdout] 98 |         .fold_first(|acc, fields| {
[INFO] [stdout]    |          ^^^^^^^^^^ method not found in `Filter<Map<std::slice::Iter<'_, Vec<u64>>, [closure@src/day16.rs:91:14: 96:10]>, [closure@src/day16.rs:97:17: 97:76]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `fold_first` found for struct `Map<std::str::Lines<'_>, for<'r> fn(&'r str) -> HashSet<char> {unique_chars}>` in the current scope
[INFO] [stdout]   --> src/day6.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 |         .fold_first(|acc, x| acc.intersection(&x).copied().collect())
[INFO] [stdout]    |          ^^^^^^^^^^ method not found in `Map<std::str::Lines<'_>, for<'r> fn(&'r str) -> HashSet<char> {unique_chars}>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `fold_first` found for struct `Filter<Map<std::slice::Iter<'_, Vec<u64>>, [closure@src/day16.rs:91:14: 96:10]>, [closure@src/day16.rs:97:17: 97:76]>` in the current scope
[INFO] [stdout]   --> src/day16.rs:98:10
[INFO] [stdout]    |
[INFO] [stdout] 98 |         .fold_first(|acc, fields| {
[INFO] [stdout]    |          ^^^^^^^^^^ method not found in `Filter<Map<std::slice::Iter<'_, Vec<u64>>, [closure@src/day16.rs:91:14: 96:10]>, [closure@src/day16.rs:97:17: 97:76]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aoc_2020`
[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] [stdout] error[E0599]: no method named `fold_first` found for struct `Map<std::str::Lines<'_>, for<'r> fn(&'r str) -> HashSet<char> {unique_chars}>` in the current scope
[INFO] [stdout]   --> src/day6.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 |         .fold_first(|acc, x| acc.intersection(&x).copied().collect())
[INFO] [stdout]    |          ^^^^^^^^^^ method not found in `Map<std::str::Lines<'_>, for<'r> fn(&'r str) -> HashSet<char> {unique_chars}>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "378dcf224cecb2689435cc93fc7bd48acb14460f8f660784b30b7fff3f6e47f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "378dcf224cecb2689435cc93fc7bd48acb14460f8f660784b30b7fff3f6e47f0", kill_on_drop: false }`
[INFO] [stdout] 378dcf224cecb2689435cc93fc7bd48acb14460f8f660784b30b7fff3f6e47f0