[INFO] cloning repository https://github.com/joemspalding/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/joemspalding/advent-of-code-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoemspalding%2Fadvent-of-code-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoemspalding%2Fadvent-of-code-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a129243219230858ecf45ea7080f5c1a75b337ba
[INFO] checking joemspalding/advent-of-code-2020 against master#4eb62535fc12dd1a63fd43a4173e224e79313c4d for pr-158816
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoemspalding%2Fadvent-of-code-2020" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/joemspalding/advent-of-code-2020
[INFO] finished tweaking git repo https://github.com/joemspalding/advent-of-code-2020
[INFO] tweaked toml for git repo https://github.com/joemspalding/advent-of-code-2020 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/joemspalding/advent-of-code-2020 on toolchain 4eb62535fc12dd1a63fd43a4173e224e79313c4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/joemspalding/advent-of-code-2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded string-builder v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 40670a16c51fb9bc7a7d4ecc766cae858891faabcc31ea04a3df3a2f4e4fd8b3
[INFO] running `Command { std: "docker" "start" "40670a16c51fb9bc7a7d4ecc766cae858891faabcc31ea04a3df3a2f4e4fd8b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40670a16c51fb9bc7a7d4ecc766cae858891faabcc31ea04a3df3a2f4e4fd8b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "40670a16c51fb9bc7a7d4ecc766cae858891faabcc31ea04a3df3a2f4e4fd8b3" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40670a16c51fb9bc7a7d4ecc766cae858891faabcc31ea04a3df3a2f4e4fd8b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "40670a16c51fb9bc7a7d4ecc766cae858891faabcc31ea04a3df3a2f4e4fd8b3" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking string-builder v0.2.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking advent-of-code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `acc` should have an upper camel case name
[INFO] [stdout]  --> src/calendar/day_eight.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     acc(i32),
[INFO] [stdout]   |     ^^^ help: convert the identifier to upper camel case: `Acc`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `jmp` should have an upper camel case name
[INFO] [stdout]  --> src/calendar/day_eight.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     jmp(i32),
[INFO] [stdout]   |     ^^^ help: convert the identifier to upper camel case: `Jmp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `nop` should have an upper camel case name
[INFO] [stdout]   --> src/calendar/day_eight.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     nop(i32)
[INFO] [stdout]    |     ^^^ help: convert the identifier to upper camel case: `Nop`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `acc` should have an upper camel case name
[INFO] [stdout]  --> src/calendar/day_eight.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     acc(i32),
[INFO] [stdout]   |     ^^^ help: convert the identifier to upper camel case: `Acc`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `jmp` should have an upper camel case name
[INFO] [stdout]  --> src/calendar/day_eight.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     jmp(i32),
[INFO] [stdout]   |     ^^^ help: convert the identifier to upper camel case: `Jmp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `nop` should have an upper camel case name
[INFO] [stdout]   --> src/calendar/day_eight.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     nop(i32)
[INFO] [stdout]    |     ^^^ help: convert the identifier to upper camel case: `Nop`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold_while`: Use .try_fold() instead
[INFO] [stdout]   --> src/calendar/day_nine.rs:82:10
[INFO] [stdout]    |
[INFO] [stdout] 82 |         .fold_while(Some(0), |acc, current: (usize, &usize)| {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/calendar/day_six.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 |             let mut found: bool = false;
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `found`
[INFO] [stdout]   --> src/calendar/day_six.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 |             let mut found: bool = false;
[INFO] [stdout]    |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_found`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/calendar/day_six.rs:59:17
[INFO] [stdout]    |
[INFO] [stdout] 59 |             let mut found: bool = false;
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `found`
[INFO] [stdout]   --> src/calendar/day_six.rs:59:17
[INFO] [stdout]    |
[INFO] [stdout] 59 |             let mut found: bool = false;
[INFO] [stdout]    |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_found`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/calendar/day_eight.rs:120:42
[INFO] [stdout]     |
[INFO] [stdout] 120 |                         Instruction::jmp(v) => {
[INFO] [stdout]     |                                          ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/calendar/day_eight.rs:123:42
[INFO] [stdout]     |
[INFO] [stdout] 123 |                         Instruction::nop(v) => {
[INFO] [stdout]     |                                          ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `itertools::Itertools::fold_while`: Use .try_fold() instead
[INFO] [stdout]   --> src/calendar/day_nine.rs:82:10
[INFO] [stdout]    |
[INFO] [stdout] 82 |         .fold_while(Some(0), |acc, current: (usize, &usize)| {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/calendar/day_nine.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let mut list: Vec<usize> = XMAS_CYPHER.lines()
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `color` and `contents` are never read
[INFO] [stdout]  --> src/calendar/day_seven.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Bag {
[INFO] [stdout]   |        --- fields in this struct
[INFO] [stdout] 7 |     color: String,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 8 |     contents: Option<Vec<(String, usize)>>
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Bag` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/calendar/day_six.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 |             let mut found: bool = false;
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `found`
[INFO] [stdout]   --> src/calendar/day_six.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 |             let mut found: bool = false;
[INFO] [stdout]    |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_found`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/calendar/day_six.rs:59:17
[INFO] [stdout]    |
[INFO] [stdout] 59 |             let mut found: bool = false;
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `found`
[INFO] [stdout]   --> src/calendar/day_six.rs:59:17
[INFO] [stdout]    |
[INFO] [stdout] 59 |             let mut found: bool = false;
[INFO] [stdout]    |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_found`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/calendar/day_eight.rs:120:42
[INFO] [stdout]     |
[INFO] [stdout] 120 |                         Instruction::jmp(v) => {
[INFO] [stdout]     |                                          ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/calendar/day_eight.rs:123:42
[INFO] [stdout]     |
[INFO] [stdout] 123 |                         Instruction::nop(v) => {
[INFO] [stdout]     |                                          ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/calendar/day_nine.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let mut list: Vec<usize> = XMAS_CYPHER.lines()
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `color` and `contents` are never read
[INFO] [stdout]  --> src/calendar/day_seven.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Bag {
[INFO] [stdout]   |        --- fields in this struct
[INFO] [stdout] 7 |     color: String,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 8 |     contents: Option<Vec<(String, usize)>>
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Bag` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.97s
[INFO] running `Command { std: "docker" "inspect" "40670a16c51fb9bc7a7d4ecc766cae858891faabcc31ea04a3df3a2f4e4fd8b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40670a16c51fb9bc7a7d4ecc766cae858891faabcc31ea04a3df3a2f4e4fd8b3", kill_on_drop: false }`
[INFO] [stdout] 40670a16c51fb9bc7a7d4ecc766cae858891faabcc31ea04a3df3a2f4e4fd8b3
