[INFO] cloning repository https://github.com/marverlous811/data-structure-algorithm-and-application
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/marverlous811/data-structure-algorithm-and-application" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarverlous811%2Fdata-structure-algorithm-and-application", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarverlous811%2Fdata-structure-algorithm-and-application'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8adce6f111e1fb40ef4647c63ed9cb7db5edecdf
[INFO] checking marverlous811/data-structure-algorithm-and-application against master#507271bc119683008ec719ecee48814e8ac86c65 for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarverlous811%2Fdata-structure-algorithm-and-application" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/marverlous811/data-structure-algorithm-and-application
[INFO] finished tweaking git repo https://github.com/marverlous811/data-structure-algorithm-and-application
[INFO] tweaked toml for git repo https://github.com/marverlous811/data-structure-algorithm-and-application written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/marverlous811/data-structure-algorithm-and-application on toolchain 507271bc119683008ec719ecee48814e8ac86c65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/marverlous811/data-structure-algorithm-and-application 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" "+507271bc119683008ec719ecee48814e8ac86c65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4478cbfa7a9d1c998d8e24ece350d2fe0aae5c37add025a5219cfbf323e7ebb4
[INFO] running `Command { std: "docker" "start" "-a" "4478cbfa7a9d1c998d8e24ece350d2fe0aae5c37add025a5219cfbf323e7ebb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4478cbfa7a9d1c998d8e24ece350d2fe0aae5c37add025a5219cfbf323e7ebb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4478cbfa7a9d1c998d8e24ece350d2fe0aae5c37add025a5219cfbf323e7ebb4", kill_on_drop: false }`
[INFO] [stdout] 4478cbfa7a9d1c998d8e24ece350d2fe0aae5c37add025a5219cfbf323e7ebb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3fb35e55c31b1327a3c7e2115559058ede72efb2941e875dafcecfe915707605
[INFO] running `Command { std: "docker" "start" "-a" "3fb35e55c31b1327a3c7e2115559058ede72efb2941e875dafcecfe915707605", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling anyhow v1.0.95
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking algorithm-and-application v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `ltag` is never read
[INFO] [stdout]  --> src/data_structure/tree/threaded_tree/mod.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct ThreadedBinaryTreeNode<T> {
[INFO] [stdout]   |            ---------------------- field in this struct
[INFO] [stdout] 4 |   data: T,
[INFO] [stdout] 5 |   ltag: usize,
[INFO] [stdout]   |   ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ltag` is never read
[INFO] [stdout]  --> src/data_structure/tree/threaded_tree/mod.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct ThreadedBinaryTreeNode<T> {
[INFO] [stdout]   |            ---------------------- field in this struct
[INFO] [stdout] 4 |   data: T,
[INFO] [stdout] 5 |   ltag: usize,
[INFO] [stdout]   |   ^^^^
[INFO] [stdout]   |
[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 4.02s
[INFO] running `Command { std: "docker" "inspect" "3fb35e55c31b1327a3c7e2115559058ede72efb2941e875dafcecfe915707605", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fb35e55c31b1327a3c7e2115559058ede72efb2941e875dafcecfe915707605", kill_on_drop: false }`
[INFO] [stdout] 3fb35e55c31b1327a3c7e2115559058ede72efb2941e875dafcecfe915707605
