[INFO] cloning repository https://github.com/Hizome/rust_algos
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Hizome/rust_algos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHizome%2Frust_algos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHizome%2Frust_algos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e7e47fe3c1f38eb3a7b371c65360c732a474bf9a
[INFO] checking Hizome/rust_algos against try#1779a8680dcd39c56ed600627cf6742ef07ed78c for pr-149045
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHizome%2Frust_algos" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Hizome/rust_algos
[INFO] finished tweaking git repo https://github.com/Hizome/rust_algos
[INFO] tweaked toml for git repo https://github.com/Hizome/rust_algos written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Hizome/rust_algos on toolchain 1779a8680dcd39c56ed600627cf6742ef07ed78c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Hizome/rust_algos 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" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 198e834dceb5b481297c0e08bb9c0b19f7f4ed3ffe8bfe8a7bc9f7c7a42917d5
[INFO] running `Command { std: "docker" "start" "-a" "198e834dceb5b481297c0e08bb9c0b19f7f4ed3ffe8bfe8a7bc9f7c7a42917d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "198e834dceb5b481297c0e08bb9c0b19f7f4ed3ffe8bfe8a7bc9f7c7a42917d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "198e834dceb5b481297c0e08bb9c0b19f7f4ed3ffe8bfe8a7bc9f7c7a42917d5", kill_on_drop: false }`
[INFO] [stdout] 198e834dceb5b481297c0e08bb9c0b19f7f4ed3ffe8bfe8a7bc9f7c7a42917d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4333a272ac134457ffbcf4f53f8883ad16f01a01d2e813b6d17e315cae468599
[INFO] running `Command { std: "docker" "start" "-a" "4333a272ac134457ffbcf4f53f8883ad16f01a01d2e813b6d17e315cae468599", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_algos v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `val`, `left`, and `right` are never read
[INFO] [stdout]  --> src/binary_tree.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct TreeNode<T> {
[INFO] [stdout]   |        -------- fields in this struct
[INFO] [stdout] 3 |     val: T,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 4 |     left: Option<Box<TreeNode<T>>>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 5 |     right: Option<Box<TreeNode<T>>>,
[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 `root` is never read
[INFO] [stdout]   --> src/binary_tree.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct BinaryTree<T> {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 10 |     root: Option<Box<TreeNode<T>>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `val`, `left`, and `right` are never read
[INFO] [stdout]  --> src/binary_tree.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct TreeNode<T> {
[INFO] [stdout]   |        -------- fields in this struct
[INFO] [stdout] 3 |     val: T,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 4 |     left: Option<Box<TreeNode<T>>>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 5 |     right: Option<Box<TreeNode<T>>>,
[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 `root` is never read
[INFO] [stdout]   --> src/binary_tree.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct BinaryTree<T> {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 10 |     root: Option<Box<TreeNode<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" "4333a272ac134457ffbcf4f53f8883ad16f01a01d2e813b6d17e315cae468599", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4333a272ac134457ffbcf4f53f8883ad16f01a01d2e813b6d17e315cae468599", kill_on_drop: false }`
[INFO] [stdout] 4333a272ac134457ffbcf4f53f8883ad16f01a01d2e813b6d17e315cae468599
