[INFO] cloning repository https://github.com/damattl/tree_calc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/damattl/tree_calc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdamattl%2Ftree_calc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdamattl%2Ftree_calc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3f30872afe76b27e69dc16c3a09f25c6ecaf752
[INFO] checking damattl/tree_calc against try#943e2200e35c3825486c4671b6cab0107a07f8c1 for pr-148952
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdamattl%2Ftree_calc" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/damattl/tree_calc
[INFO] finished tweaking git repo https://github.com/damattl/tree_calc
[INFO] tweaked toml for git repo https://github.com/damattl/tree_calc written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/damattl/tree_calc on toolchain 943e2200e35c3825486c4671b6cab0107a07f8c1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+943e2200e35c3825486c4671b6cab0107a07f8c1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/damattl/tree_calc 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" "+943e2200e35c3825486c4671b6cab0107a07f8c1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "bdf1411895410158447ab4a6a7f9cbb3f937b917c01387bd575df57596a664b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bdf1411895410158447ab4a6a7f9cbb3f937b917c01387bd575df57596a664b3", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+943e2200e35c3825486c4671b6cab0107a07f8c1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused imports: `Length` and `alignment`
[INFO] [stdout]  --> src/main.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Alignment, Element, Length, Size, alignment, application, color,
[INFO] [stdout]   |                         ^^^^^^        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Length` and `alignment`
[INFO] [stdout]  --> src/main.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Alignment, Element, Length, Size, alignment, application, color,
[INFO] [stdout]   |                         ^^^^^^        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `parent_idx`, `left`, `right`, `parent`, and `traverse_inorder` are never used
[INFO] [stdout]    --> src/tree.rs:11:12
[INFO] [stdout]     |
[INFO] [stdout]   7 | / impl<T> BinaryTree<T>
[INFO] [stdout]   8 | | where
[INFO] [stdout]   9 | |     T: Clone + PartialEq,
[INFO] [stdout]     | |_________________________- associated items in this implementation
[INFO] [stdout]  10 |   {
[INFO] [stdout]  11 |       pub fn new(empty: T) -> Self {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout]  68 |       pub fn parent_idx(k: usize) -> Option<usize> {
[INFO] [stdout]     |              ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  75 |       pub fn left(&self, k: usize) -> (Option<usize>, Option<&T>) {
[INFO] [stdout]     |              ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  86 |       pub fn right(&self, k: usize) -> (Option<usize>, Option<&T>) {
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  97 |       pub fn parent(&self, k: usize) -> (Option<usize>, Option<&T>) {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 |       pub fn traverse_inorder<F>(&self, k: usize, f: &mut F)
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `parent_idx`, `left`, `right`, `parent`, and `traverse_inorder` are never used
[INFO] [stdout]    --> src/tree.rs:11:12
[INFO] [stdout]     |
[INFO] [stdout]   7 | / impl<T> BinaryTree<T>
[INFO] [stdout]   8 | | where
[INFO] [stdout]   9 | |     T: Clone + PartialEq,
[INFO] [stdout]     | |_________________________- associated items in this implementation
[INFO] [stdout]  10 |   {
[INFO] [stdout]  11 |       pub fn new(empty: T) -> Self {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout]  68 |       pub fn parent_idx(k: usize) -> Option<usize> {
[INFO] [stdout]     |              ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  75 |       pub fn left(&self, k: usize) -> (Option<usize>, Option<&T>) {
[INFO] [stdout]     |              ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  86 |       pub fn right(&self, k: usize) -> (Option<usize>, Option<&T>) {
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  97 |       pub fn parent(&self, k: usize) -> (Option<usize>, Option<&T>) {
[INFO] [stdout]     |              ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 |       pub fn traverse_inorder<F>(&self, k: usize, f: &mut F)
[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 4m 02s
[INFO] running `Command { std: "docker" "inspect" "4d1892cc10494ce9e0dbaf5d99337d94556d6a57002994ba1c203e02c5604faf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d1892cc10494ce9e0dbaf5d99337d94556d6a57002994ba1c203e02c5604faf", kill_on_drop: false }`
[INFO] [stdout] 4d1892cc10494ce9e0dbaf5d99337d94556d6a57002994ba1c203e02c5604faf
