[INFO] cloning repository https://github.com/tristan/adventofcode2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tristan/adventofcode2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftristan%2Fadventofcode2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftristan%2Fadventofcode2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9417fc5b2ae48e1eedeba64ce935c0c17cee4643
[INFO] checking tristan/adventofcode2021 against try#723ab942d877517caf445dafde0416803ef56501 for pr-143857
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftristan%2Fadventofcode2021" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tristan/adventofcode2021
[INFO] finished tweaking git repo https://github.com/tristan/adventofcode2021
[INFO] tweaked toml for git repo https://github.com/tristan/adventofcode2021 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tristan/adventofcode2021 on toolchain 723ab942d877517caf445dafde0416803ef56501
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+723ab942d877517caf445dafde0416803ef56501" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tristan/adventofcode2021 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" "+723ab942d877517caf445dafde0416803ef56501" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking tristan/adventofcode2021 against try#723ab942d877517caf445dafde0416803ef56501 for pr-143857
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftristan%2Fadventofcode2021" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tristan/adventofcode2021
[INFO] finished tweaking git repo https://github.com/tristan/adventofcode2021
[INFO] tweaked toml for git repo https://github.com/tristan/adventofcode2021 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tristan/adventofcode2021 on toolchain 723ab942d877517caf445dafde0416803ef56501
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+723ab942d877517caf445dafde0416803ef56501" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tristan/adventofcode2021 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" "+723ab942d877517caf445dafde0416803ef56501" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+723ab942d877517caf445dafde0416803ef56501" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27ae7bfeb5d5e3e18e9c14f7f540c0c4539d02b7cd08641c214d8debd3a47327
[INFO] running `Command { std: "docker" "start" "-a" "27ae7bfeb5d5e3e18e9c14f7f540c0c4539d02b7cd08641c214d8debd3a47327", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27ae7bfeb5d5e3e18e9c14f7f540c0c4539d02b7cd08641c214d8debd3a47327", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27ae7bfeb5d5e3e18e9c14f7f540c0c4539d02b7cd08641c214d8debd3a47327", kill_on_drop: false }`
[INFO] [stdout] 27ae7bfeb5d5e3e18e9c14f7f540c0c4539d02b7cd08641c214d8debd3a47327
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+723ab942d877517caf445dafde0416803ef56501" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98c41fe95890c5891e00d54499bbe5c0ea586064132f9c2cfe636caab19158cd
[INFO] running `Command { std: "docker" "start" "-a" "98c41fe95890c5891e00d54499bbe5c0ea586064132f9c2cfe636caab19158cd", kill_on_drop: false }`
[INFO] [stderr]     Checking adventofcode2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]  --> src/day_12.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn new(name: &str) -> Cave {
[INFO] [stdout]   |                  ^^^^     ---- the lifetime gets resolved as `'_`
[INFO] [stdout]   |                  |
[INFO] [stdout]   |                  this lifetime flows to the output
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn new(name: &str) -> Cave<'_> {
[INFO] [stdout]   |                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/day_12.rs:17:28
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn parse_input<'a>(input: &'a str) -> HashMap<&'a str, Cave> {
[INFO] [stdout]    |                            ^^                  --      ---- the lifetimes get resolved as `'a`
[INFO] [stdout]    |                            |                   |
[INFO] [stdout]    |                            |                   the lifetimes get resolved as `'a`
[INFO] [stdout]    |                            this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn parse_input<'a>(input: &'a str) -> HashMap<&'a str, Cave<'a>> {
[INFO] [stdout]    |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]  --> src/day_12.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn new(name: &str) -> Cave {
[INFO] [stdout]   |                  ^^^^     ---- the lifetime gets resolved as `'_`
[INFO] [stdout]   |                  |
[INFO] [stdout]   |                  this lifetime flows to the output
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn new(name: &str) -> Cave<'_> {
[INFO] [stdout]   |                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/day_12.rs:17:28
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn parse_input<'a>(input: &'a str) -> HashMap<&'a str, Cave> {
[INFO] [stdout]    |                            ^^                  --      ---- the lifetimes get resolved as `'a`
[INFO] [stdout]    |                            |                   |
[INFO] [stdout]    |                            |                   the lifetimes get resolved as `'a`
[INFO] [stdout]    |                            this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn parse_input<'a>(input: &'a str) -> HashMap<&'a str, Cave<'a>> {
[INFO] [stdout]    |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "98c41fe95890c5891e00d54499bbe5c0ea586064132f9c2cfe636caab19158cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98c41fe95890c5891e00d54499bbe5c0ea586064132f9c2cfe636caab19158cd", kill_on_drop: false }`
[INFO] [stdout] 98c41fe95890c5891e00d54499bbe5c0ea586064132f9c2cfe636caab19158cd