[INFO] cloning repository https://github.com/RussellSnyder/AOC-rust-day21
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RussellSnyder/AOC-rust-day21" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRussellSnyder%2FAOC-rust-day21", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRussellSnyder%2FAOC-rust-day21'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2fe7489b726482f0ed57df55870f4028879647ed
[INFO] checking RussellSnyder/AOC-rust-day21 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRussellSnyder%2FAOC-rust-day21" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RussellSnyder/AOC-rust-day21 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RussellSnyder/AOC-rust-day21
[INFO] finished tweaking git repo https://github.com/RussellSnyder/AOC-rust-day21
[INFO] tweaked toml for git repo https://github.com/RussellSnyder/AOC-rust-day21 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/RussellSnyder/AOC-rust-day21 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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] 7e412706aaae1954cd2dc4685b3feebe333541afbef59d2b7db23d5dd10ccce0
[INFO] running `Command { std: "docker" "start" "-a" "7e412706aaae1954cd2dc4685b3feebe333541afbef59d2b7db23d5dd10ccce0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e412706aaae1954cd2dc4685b3feebe333541afbef59d2b7db23d5dd10ccce0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e412706aaae1954cd2dc4685b3feebe333541afbef59d2b7db23d5dd10ccce0", kill_on_drop: false }`
[INFO] [stdout] 7e412706aaae1954cd2dc4685b3feebe333541afbef59d2b7db23d5dd10ccce0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4787d85d0957c802724bfc3808451a2c126821233dc352dfe17ca1ea09391f86
[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" "4787d85d0957c802724bfc3808451a2c126821233dc352dfe17ca1ea09391f86", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking urlencoding v1.1.1
[INFO] [stderr]     Checking partial_application v0.2.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking advent_of_code_2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/day21.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |         if (intersected_list.len() == 1) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/day21.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |         if (intersected_list.len() == 1) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `allergen`
[INFO] [stdout]   --> src/day21.rs:71:10
[INFO] [stdout]    |
[INFO] [stdout] 71 |     for (allergen, ingredient_list_list) in map.iter_mut() {
[INFO] [stdout]    |          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_allergen`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/day10.rs:65:33
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 panic!("adapter {} has more than 3 next adaptors");
[INFO] [stdout]    |                                 ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(panic_fmt)]` on by default
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in a future Rust edition
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 panic!("adapter {} has more than 3 next adaptors", ...);
[INFO] [stdout]    |                                                                  ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 panic!("{}", "adapter {} has more than 3 next adaptors");
[INFO] [stdout]    |                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `allergen`
[INFO] [stdout]   --> src/day21.rs:71:10
[INFO] [stdout]    |
[INFO] [stdout] 71 |     for (allergen, ingredient_list_list) in map.iter_mut() {
[INFO] [stdout]    |          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_allergen`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/day10.rs:65:33
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 panic!("adapter {} has more than 3 next adaptors");
[INFO] [stdout]    |                                 ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(panic_fmt)]` on by default
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in a future Rust edition
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 panic!("adapter {} has more than 3 next adaptors", ...);
[INFO] [stdout]    |                                                                  ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 panic!("{}", "adapter {} has more than 3 next adaptors");
[INFO] [stdout]    |                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.54s
[INFO] running `Command { std: "docker" "inspect" "4787d85d0957c802724bfc3808451a2c126821233dc352dfe17ca1ea09391f86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4787d85d0957c802724bfc3808451a2c126821233dc352dfe17ca1ea09391f86", kill_on_drop: false }`
[INFO] [stdout] 4787d85d0957c802724bfc3808451a2c126821233dc352dfe17ca1ea09391f86