[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#3e826bb11228508fbe749e594038d6727208aa94 for pr-82322
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhfcredidio%2Faoc_2020" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hfcredidio/aoc_2020 on toolchain 3e826bb11228508fbe749e594038d6727208aa94
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "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-7/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" "+3e826bb11228508fbe749e594038d6727208aa94" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c01638226870143ba2bbd6b9e1ced3e3fa530676cf04a32296783c078880e57
[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" "7c01638226870143ba2bbd6b9e1ced3e3fa530676cf04a32296783c078880e57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c01638226870143ba2bbd6b9e1ced3e3fa530676cf04a32296783c078880e57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c01638226870143ba2bbd6b9e1ced3e3fa530676cf04a32296783c078880e57", kill_on_drop: false }`
[INFO] [stdout] 7c01638226870143ba2bbd6b9e1ced3e3fa530676cf04a32296783c078880e57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "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] 5fe1df08bb477e2bebead8b5d025b34c05b4524fb201d85d7d7e66d93ec0490c
[INFO] running `Command { std: "docker" "start" "-a" "5fe1df08bb477e2bebead8b5d025b34c05b4524fb201d85d7d7e66d93ec0490c", 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 `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[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: 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: 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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "5fe1df08bb477e2bebead8b5d025b34c05b4524fb201d85d7d7e66d93ec0490c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fe1df08bb477e2bebead8b5d025b34c05b4524fb201d85d7d7e66d93ec0490c", kill_on_drop: false }`
[INFO] [stdout] 5fe1df08bb477e2bebead8b5d025b34c05b4524fb201d85d7d7e66d93ec0490c