[INFO] cloning repository https://github.com/marcroberts/adventofcode2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/marcroberts/adventofcode2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcroberts%2Fadventofcode2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcroberts%2Fadventofcode2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f06761d5b424e67a12ab960be0e776a5ce70abf0
[INFO] checking marcroberts/adventofcode2020 against try#173780a87744406b7489b28349c0176f14bb3881 for pr-135841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcroberts%2Fadventofcode2020" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/marcroberts/adventofcode2020 on toolchain 173780a87744406b7489b28349c0176f14bb3881
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+173780a87744406b7489b28349c0176f14bb3881" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/marcroberts/adventofcode2020
[INFO] finished tweaking git repo https://github.com/marcroberts/adventofcode2020
[INFO] tweaked toml for git repo https://github.com/marcroberts/adventofcode2020 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/marcroberts/adventofcode2020 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" "+173780a87744406b7489b28349c0176f14bb3881" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+173780a87744406b7489b28349c0176f14bb3881" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15f56cb4fe8344f157bf5063fc20afcc777b0061181b2a1b7537c16d6d7e92bd
[INFO] running `Command { std: "docker" "start" "-a" "15f56cb4fe8344f157bf5063fc20afcc777b0061181b2a1b7537c16d6d7e92bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15f56cb4fe8344f157bf5063fc20afcc777b0061181b2a1b7537c16d6d7e92bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15f56cb4fe8344f157bf5063fc20afcc777b0061181b2a1b7537c16d6d7e92bd", kill_on_drop: false }`
[INFO] [stdout] 15f56cb4fe8344f157bf5063fc20afcc777b0061181b2a1b7537c16d6d7e92bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+173780a87744406b7489b28349c0176f14bb3881" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78822700d30183d9afece0ce57a14413f85c797233bc4b0708f2f0611063276a
[INFO] running `Command { std: "docker" "start" "-a" "78822700d30183d9afece0ce57a14413f85c797233bc4b0708f2f0611063276a", kill_on_drop: false }`
[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 thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking adventofcode2020 v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/bin/day2pt2.rs:22:16
[INFO] [stdout]    |
[INFO] [stdout] 22 |     for cap in re.captures(&str) {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 22 |     while let Some(cap) = re.captures(&str) {
[INFO] [stdout]    |     ~~~~~~~~~~~~~~~   ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 22 |     if let Some(cap) = re.captures(&str) {
[INFO] [stdout]    |     ~~~~~~~~~~~~   ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/bin/day2.rs:22:16
[INFO] [stdout]    |
[INFO] [stdout] 22 |     for cap in re.captures(&str) {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 22 |     while let Some(cap) = re.captures(&str) {
[INFO] [stdout]    |     ~~~~~~~~~~~~~~~   ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 22 |     if let Some(cap) = re.captures(&str) {
[INFO] [stdout]    |     ~~~~~~~~~~~~   ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/bin/day2.rs:22:16
[INFO] [stdout]    |
[INFO] [stdout] 22 |     for cap in re.captures(&str) {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 22 |     while let Some(cap) = re.captures(&str) {
[INFO] [stdout]    |     ~~~~~~~~~~~~~~~   ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 22 |     if let Some(cap) = re.captures(&str) {
[INFO] [stdout]    |     ~~~~~~~~~~~~   ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/bin/day2pt2.rs:22:16
[INFO] [stdout]    |
[INFO] [stdout] 22 |     for cap in re.captures(&str) {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 22 |     while let Some(cap) = re.captures(&str) {
[INFO] [stdout]    |     ~~~~~~~~~~~~~~~   ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 22 |     if let Some(cap) = re.captures(&str) {
[INFO] [stdout]    |     ~~~~~~~~~~~~   ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.77s
[INFO] running `Command { std: "docker" "inspect" "78822700d30183d9afece0ce57a14413f85c797233bc4b0708f2f0611063276a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78822700d30183d9afece0ce57a14413f85c797233bc4b0708f2f0611063276a", kill_on_drop: false }`
[INFO] [stdout] 78822700d30183d9afece0ce57a14413f85c797233bc4b0708f2f0611063276a