[INFO] cloning repository https://github.com/sgrowe/advent-of-code-2019
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sgrowe/advent-of-code-2019" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsgrowe%2Fadvent-of-code-2019", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsgrowe%2Fadvent-of-code-2019'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b583bcdb12e6f2305b73a4b768ec46640a2657af
[INFO] checking sgrowe/advent-of-code-2019 against try#8e819ff5434466e9a823e03871a1775ac7d84ddf for pr-156027
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsgrowe%2Fadvent-of-code-2019" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sgrowe/advent-of-code-2019
[INFO] finished tweaking git repo https://github.com/sgrowe/advent-of-code-2019
[INFO] tweaked toml for git repo https://github.com/sgrowe/advent-of-code-2019 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sgrowe/advent-of-code-2019 on toolchain 8e819ff5434466e9a823e03871a1775ac7d84ddf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8e819ff5434466e9a823e03871a1775ac7d84ddf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sgrowe/advent-of-code-2019 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" "+8e819ff5434466e9a823e03871a1775ac7d84ddf" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+8e819ff5434466e9a823e03871a1775ac7d84ddf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 085859f1e6396e6921a56b7a9bfa0aa5bc7846c566068b394033f29e894ffe03
[INFO] running `Command { std: "docker" "start" "-a" "085859f1e6396e6921a56b7a9bfa0aa5bc7846c566068b394033f29e894ffe03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "085859f1e6396e6921a56b7a9bfa0aa5bc7846c566068b394033f29e894ffe03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "085859f1e6396e6921a56b7a9bfa0aa5bc7846c566068b394033f29e894ffe03", kill_on_drop: false }`
[INFO] [stdout] 085859f1e6396e6921a56b7a9bfa0aa5bc7846c566068b394033f29e894ffe03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+8e819ff5434466e9a823e03871a1775ac7d84ddf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d440397515ea4de71982970eb8993381fdfa0b92ba19ca6767a6b77d3a3ecee
[INFO] running `Command { std: "docker" "start" "-a" "9d440397515ea4de71982970eb8993381fdfa0b92ba19ca6767a6b77d3a3ecee", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking advent-of-code-2019 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/rolling_pairs.rs:15:22
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn rolling_pairs(&mut self) -> RollingPairsState<Iter>;
[INFO] [stdout]    |                      ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn rolling_pairs(&mut self) -> RollingPairsState<'_, Iter>;
[INFO] [stdout]    |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/rolling_pairs.rs:23:22
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn rolling_pairs(&mut self) -> RollingPairsState<Iter> {
[INFO] [stdout]    |                      ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn rolling_pairs(&mut self) -> RollingPairsState<'_, Iter> {
[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/seven.rs:95:18
[INFO] [stdout]    |
[INFO] [stdout] 95 |         for x in out {
[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] 95 -         for x in out {
[INFO] [stdout] 95 +         while let Some(x) = out {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 95 -         for x in out {
[INFO] [stdout] 95 +         if let Some(x) = out {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/rolling_pairs.rs:15:22
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn rolling_pairs(&mut self) -> RollingPairsState<Iter>;
[INFO] [stdout]    |                      ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn rolling_pairs(&mut self) -> RollingPairsState<'_, Iter>;
[INFO] [stdout]    |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/rolling_pairs.rs:23:22
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn rolling_pairs(&mut self) -> RollingPairsState<Iter> {
[INFO] [stdout]    |                      ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn rolling_pairs(&mut self) -> RollingPairsState<'_, Iter> {
[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/seven.rs:95:18
[INFO] [stdout]    |
[INFO] [stdout] 95 |         for x in out {
[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] 95 -         for x in out {
[INFO] [stdout] 95 +         while let Some(x) = out {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 95 -         for x in out {
[INFO] [stdout] 95 +         if let Some(x) = out {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "9d440397515ea4de71982970eb8993381fdfa0b92ba19ca6767a6b77d3a3ecee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d440397515ea4de71982970eb8993381fdfa0b92ba19ca6767a6b77d3a3ecee", kill_on_drop: false }`
[INFO] [stdout] 9d440397515ea4de71982970eb8993381fdfa0b92ba19ca6767a6b77d3a3ecee
