[INFO] cloning repository https://github.com/monsterooo/rust-algo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/monsterooo/rust-algo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmonsterooo%2Frust-algo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmonsterooo%2Frust-algo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 50f29634986682c33f97b33b93c1d9ef87b89b37
[INFO] checking monsterooo/rust-algo against master#40daf23eeb711dadf140b2536e67e3ff4c999196 for pr-142287
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmonsterooo%2Frust-algo" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/monsterooo/rust-algo on toolchain 40daf23eeb711dadf140b2536e67e3ff4c999196
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/monsterooo/rust-algo
[INFO] finished tweaking git repo https://github.com/monsterooo/rust-algo
[INFO] tweaked toml for git repo https://github.com/monsterooo/rust-algo written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/monsterooo/rust-algo 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" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "fetch" "--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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab48d0aaa598086ee4574c825d06066c26a5190001ffc35ae1329785ce07e2a3
[INFO] running `Command { std: "docker" "start" "-a" "ab48d0aaa598086ee4574c825d06066c26a5190001ffc35ae1329785ce07e2a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab48d0aaa598086ee4574c825d06066c26a5190001ffc35ae1329785ce07e2a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab48d0aaa598086ee4574c825d06066c26a5190001ffc35ae1329785ce07e2a3", kill_on_drop: false }`
[INFO] [stdout] ab48d0aaa598086ee4574c825d06066c26a5190001ffc35ae1329785ce07e2a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 222ff27f0788d6a57006944093596376222920bfe9bacf69e18c53f945870c73
[INFO] running `Command { std: "docker" "start" "-a" "222ff27f0788d6a57006944093596376222920bfe9bacf69e18c53f945870c73", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-algo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/data_structures/binary_search_tree.rs:149:22
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub fn new(tree: &BinarySearchTree<T>) -> BinarySearchTreeIter<T> {
[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] 149 |     pub fn new(tree: &BinarySearchTree<T>) -> BinarySearchTreeIter<'_, T> {
[INFO] [stdout]     |                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/data_structures/binary_search_tree.rs:149:22
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub fn new(tree: &BinarySearchTree<T>) -> BinarySearchTreeIter<T> {
[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] 149 |     pub fn new(tree: &BinarySearchTree<T>) -> BinarySearchTreeIter<'_, T> {
[INFO] [stdout]     |                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "222ff27f0788d6a57006944093596376222920bfe9bacf69e18c53f945870c73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "222ff27f0788d6a57006944093596376222920bfe9bacf69e18c53f945870c73", kill_on_drop: false }`
[INFO] [stdout] 222ff27f0788d6a57006944093596376222920bfe9bacf69e18c53f945870c73