[INFO] cloning repository https://github.com/duarten/advent-of-code-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/duarten/advent-of-code-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduarten%2Fadvent-of-code-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduarten%2Fadvent-of-code-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8af4e9ae21f1941e10850645d317db2222953e2b
[INFO] building duarten/advent-of-code-2020 against master#881c1ac408d93bb7adaa3a51dabab9266e82eee8 for issue-85264
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduarten%2Fadvent-of-code-2020" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/duarten/advent-of-code-2020 on toolchain 881c1ac408d93bb7adaa3a51dabab9266e82eee8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/duarten/advent-of-code-2020
[INFO] finished tweaking git repo https://github.com/duarten/advent-of-code-2020
[INFO] tweaked toml for git repo https://github.com/duarten/advent-of-code-2020 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/duarten/advent-of-code-2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ca879364e63bd55f858fc5792267c5d2f63ce5405ab2caea838ba7b4ebe481e
[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" "3ca879364e63bd55f858fc5792267c5d2f63ce5405ab2caea838ba7b4ebe481e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ca879364e63bd55f858fc5792267c5d2f63ce5405ab2caea838ba7b4ebe481e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ca879364e63bd55f858fc5792267c5d2f63ce5405ab2caea838ba7b4ebe481e", kill_on_drop: false }`
[INFO] [stdout] 3ca879364e63bd55f858fc5792267c5d2f63ce5405ab2caea838ba7b4ebe481e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84d44f0430ebf28376e1938407e35f4bba7a40c4592453255215e8b45c668e4f
[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" "84d44f0430ebf28376e1938407e35f4bba7a40c4592453255215e8b45c668e4f", kill_on_drop: false }`
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `day01` in package `aoc2020 v0.1.0 (/opt/rustwide/workdir/aoc2020)` has the same output filename as the bin target `day01` in package `aoc2015 v0.1.0 (/opt/rustwide/workdir/aoc2015)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/day01
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `day02` in package `aoc2020 v0.1.0 (/opt/rustwide/workdir/aoc2020)` has the same output filename as the bin target `day02` in package `aoc2015 v0.1.0 (/opt/rustwide/workdir/aoc2015)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/day02
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `day03` in package `aoc2020 v0.1.0 (/opt/rustwide/workdir/aoc2020)` has the same output filename as the bin target `day03` in package `aoc2015 v0.1.0 (/opt/rustwide/workdir/aoc2015)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/day03
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `day04` in package `aoc2020 v0.1.0 (/opt/rustwide/workdir/aoc2020)` has the same output filename as the bin target `day04` in package `aoc2015 v0.1.0 (/opt/rustwide/workdir/aoc2015)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/day04
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `day05` in package `aoc2020 v0.1.0 (/opt/rustwide/workdir/aoc2020)` has the same output filename as the bin target `day05` in package `aoc2015 v0.1.0 (/opt/rustwide/workdir/aoc2015)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/day05
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `day06` in package `aoc2020 v0.1.0 (/opt/rustwide/workdir/aoc2020)` has the same output filename as the bin target `day06` in package `aoc2015 v0.1.0 (/opt/rustwide/workdir/aoc2015)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/day06
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `day07` in package `aoc2020 v0.1.0 (/opt/rustwide/workdir/aoc2020)` has the same output filename as the bin target `day07` in package `aoc2015 v0.1.0 (/opt/rustwide/workdir/aoc2015)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/day07
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `day08` in package `aoc2020 v0.1.0 (/opt/rustwide/workdir/aoc2020)` has the same output filename as the bin target `day08` in package `aoc2015 v0.1.0 (/opt/rustwide/workdir/aoc2015)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/day08
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `day09` in package `aoc2020 v0.1.0 (/opt/rustwide/workdir/aoc2020)` has the same output filename as the bin target `day09` in package `aoc2015 v0.1.0 (/opt/rustwide/workdir/aoc2015)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/day09
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `day10` in package `aoc2020 v0.1.0 (/opt/rustwide/workdir/aoc2020)` has the same output filename as the bin target `day10` in package `aoc2015 v0.1.0 (/opt/rustwide/workdir/aoc2015)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/day10
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `day11` in package `aoc2020 v0.1.0 (/opt/rustwide/workdir/aoc2020)` has the same output filename as the bin target `day11` in package `aoc2015 v0.1.0 (/opt/rustwide/workdir/aoc2015)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/day11
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `day12` in package `aoc2020 v0.1.0 (/opt/rustwide/workdir/aoc2020)` has the same output filename as the bin target `day12` in package `aoc2015 v0.1.0 (/opt/rustwide/workdir/aoc2015)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/day12
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `day13` in package `aoc2020 v0.1.0 (/opt/rustwide/workdir/aoc2020)` has the same output filename as the bin target `day13` in package `aoc2015 v0.1.0 (/opt/rustwide/workdir/aoc2015)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/day13
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `day14` in package `aoc2020 v0.1.0 (/opt/rustwide/workdir/aoc2020)` has the same output filename as the bin target `day14` in package `aoc2015 v0.1.0 (/opt/rustwide/workdir/aoc2015)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/debug/day14
[INFO] [stderr] The targets should have unique names.
[INFO] [stderr] Consider changing their names to be unique or compiling them separately.
[INFO] [stderr] This may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr]    Compiling anyhow v1.0.36
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling utils v0.1.0 (/opt/rustwide/workdir/utils)
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling md5 v0.7.0
[INFO] [stderr]    Compiling itertools v0.10.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling aoc2020 v0.1.0 (/opt/rustwide/workdir/aoc2020)
[INFO] [stdout] error[E0599]: no method named `fold_first` found for struct `Map<std::vec::IntoIter<usize>, [closure@aoc2020/src/day23.rs:22:18: 22:59]>` in the current scope
[INFO] [stdout]   --> aoc2020/src/day23.rs:23:14
[INFO] [stdout]    |
[INFO] [stdout] 23 |             .fold_first(|a, b| a.append_after(b, &mut arena));
[INFO] [stdout]    |              ^^^^^^^^^^ method not found in `Map<std::vec::IntoIter<usize>, [closure@aoc2020/src/day23.rs:22:18: 22:59]>`
[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 `aoc2020`
[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] warning: the feature `min_const_generics` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> aoc2020/src/day17.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(bool_to_option, min_const_generics)]
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "84d44f0430ebf28376e1938407e35f4bba7a40c4592453255215e8b45c668e4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84d44f0430ebf28376e1938407e35f4bba7a40c4592453255215e8b45c668e4f", kill_on_drop: false }`
[INFO] [stdout] 84d44f0430ebf28376e1938407e35f4bba7a40c4592453255215e8b45c668e4f
