[INFO] cloning repository https://github.com/wst7/rsds
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wst7/rsds" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwst7%2Frsds", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwst7%2Frsds'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 520c94aa593b8d6da0875b637b6a3c82106397f7
[INFO] checking wst7/rsds against try#63132bd615c9bf75e93af8405d00064212331708 for pr-153975
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwst7%2Frsds" "/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/wst7/rsds
[INFO] finished tweaking git repo https://github.com/wst7/rsds
[INFO] tweaked toml for git repo https://github.com/wst7/rsds written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/wst7/rsds on toolchain 63132bd615c9bf75e93af8405d00064212331708
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/wst7/rsds 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" "+63132bd615c9bf75e93af8405d00064212331708" "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" "+63132bd615c9bf75e93af8405d00064212331708" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f493533f3a3895ffb501c509e80bbc4f6c94118d0d940751fe8601b634065f88
[INFO] running `Command { std: "docker" "start" "-a" "f493533f3a3895ffb501c509e80bbc4f6c94118d0d940751fe8601b634065f88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f493533f3a3895ffb501c509e80bbc4f6c94118d0d940751fe8601b634065f88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f493533f3a3895ffb501c509e80bbc4f6c94118d0d940751fe8601b634065f88", kill_on_drop: false }`
[INFO] [stdout] f493533f3a3895ffb501c509e80bbc4f6c94118d0d940751fe8601b634065f88
[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" "+63132bd615c9bf75e93af8405d00064212331708" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54a180df01f36b9cea989629e4f7581ba4b4af77f5633b898df951a69bf4ed8e
[INFO] running `Command { std: "docker" "start" "-a" "54a180df01f36b9cea989629e4f7581ba4b4af77f5633b898df951a69bf4ed8e", kill_on_drop: false }`
[INFO] [stderr]     Checking rsds v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `avl::*`
[INFO] [stdout]  --> src/tree.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use avl::*;
[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 import: `bst::*`
[INFO] [stdout]  --> src/tree.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use bst::*;
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rbt::*`
[INFO] [stdout]  --> src/tree.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use rbt::*;
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `avl::*`
[INFO] [stdout]  --> src/tree.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use avl::*;
[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 import: `bst::*`
[INFO] [stdout]  --> src/tree.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use bst::*;
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rbt::*`
[INFO] [stdout]  --> src/tree.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use rbt::*;
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/tree/rbt.rs:80:46
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn fix_violations(node: Box<Node<T>>) -> Box<Node<T>> {
[INFO] [stdout]    |        --------------                        ^^^^^^^^^^^^ expected `Box<Node<T>>`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Box<rbt::Node<T>>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] help: consider returning the local binding `node`
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn fix_violations(node: Box<Node<T>>) -> Box<Node<T>> {
[INFO] [stdout] 81 +         node
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tree/rbt.rs:48:31
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn rotate_left(&mut self, mut node: Link<T>) {
[INFO] [stdout]    |                               ----^^^^
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tree/rbt.rs:63:24
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn insert_internal(mut node: Link<T>, value: T) -> Link<T> {
[INFO] [stdout]    |                        ----^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/tree/rbt.rs:80:46
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn fix_violations(node: Box<Node<T>>) -> Box<Node<T>> {
[INFO] [stdout]    |        --------------                        ^^^^^^^^^^^^ expected `Box<Node<T>>`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Box<rbt::Node<T>>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] help: consider returning the local binding `node`
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn fix_violations(node: Box<Node<T>>) -> Box<Node<T>> {
[INFO] [stdout] 81 +         node
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rsds` (lib) due to 1 previous error; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tree/rbt.rs:48:31
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn rotate_left(&mut self, mut node: Link<T>) {
[INFO] [stdout]    |                               ----^^^^
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tree/rbt.rs:63:24
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn insert_internal(mut node: Link<T>, value: T) -> Link<T> {
[INFO] [stdout]    |                        ----^^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rsds` (lib test) due to 1 previous error; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "54a180df01f36b9cea989629e4f7581ba4b4af77f5633b898df951a69bf4ed8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54a180df01f36b9cea989629e4f7581ba4b4af77f5633b898df951a69bf4ed8e", kill_on_drop: false }`
[INFO] [stdout] 54a180df01f36b9cea989629e4f7581ba4b4af77f5633b898df951a69bf4ed8e
