[INFO] cloning repository https://github.com/pooriaazami/Rust-BST [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pooriaazami/Rust-BST" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpooriaazami%2FRust-BST", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpooriaazami%2FRust-BST'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b4bce409ed568c35b911804293e845f1c2a835c8 [INFO] checking pooriaazami/Rust-BST against try#446cb600aa4837dd6c513f14fa0d25a909b177d7 for pr-149195 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpooriaazami%2FRust-BST" "/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/pooriaazami/Rust-BST [INFO] finished tweaking git repo https://github.com/pooriaazami/Rust-BST [INFO] tweaked toml for git repo https://github.com/pooriaazami/Rust-BST written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/pooriaazami/Rust-BST on toolchain 446cb600aa4837dd6c513f14fa0d25a909b177d7 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/pooriaazami/Rust-BST 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" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 821a44f5d0af850ac46e4a8a21b1b699bd9e05949e304742b4a59a305a1e550c [INFO] running `Command { std: "docker" "start" "-a" "821a44f5d0af850ac46e4a8a21b1b699bd9e05949e304742b4a59a305a1e550c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "821a44f5d0af850ac46e4a8a21b1b699bd9e05949e304742b4a59a305a1e550c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "821a44f5d0af850ac46e4a8a21b1b699bd9e05949e304742b4a59a305a1e550c", kill_on_drop: false }` [INFO] [stdout] 821a44f5d0af850ac46e4a8a21b1b699bd9e05949e304742b4a59a305a1e550c [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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5deae8fa4e5c3f6e3f1f459f615384b3e907aab31de0067a240552a0bca62c33 [INFO] running `Command { std: "docker" "start" "-a" "5deae8fa4e5c3f6e3f1f459f615384b3e907aab31de0067a240552a0bca62c33", kill_on_drop: false }` [INFO] [stderr] Checking binary_search_tree v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: methods `remove` and `size` are never used [INFO] [stdout] --> src/bst.rs:154:12 [INFO] [stdout] | [INFO] [stdout] 101 | / impl BST [INFO] [stdout] 102 | | where [INFO] [stdout] 103 | | T: Eq + PartialEq + Ord + PartialOrd, [INFO] [stdout] | |_____________________________________________- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 154 | fn remove(&mut self) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 165 | fn size(&self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/bst.rs:40:21 [INFO] [stdout] | [INFO] [stdout] 38 | &'a self, [INFO] [stdout] | -- the lifetime is named here [INFO] [stdout] 39 | node: &'a Option>>, [INFO] [stdout] | -- the lifetime is named here [INFO] [stdout] 40 | ) -> Option<&BSTNode> { [INFO] [stdout] | ^^^^^^^^^^^ the same lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 40 | ) -> Option<&'a BSTNode> { [INFO] [stdout] | ++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bst_test.rs:40:13 [INFO] [stdout] | [INFO] [stdout] 40 | let mut tree = BST::new(10); [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: methods `remove` and `size` are never used [INFO] [stdout] --> src/bst.rs:154:12 [INFO] [stdout] | [INFO] [stdout] 101 | / impl BST [INFO] [stdout] 102 | | where [INFO] [stdout] 103 | | T: Eq + PartialEq + Ord + PartialOrd, [INFO] [stdout] | |_____________________________________________- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 154 | fn remove(&mut self) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 165 | fn size(&self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/bst.rs:40:21 [INFO] [stdout] | [INFO] [stdout] 38 | &'a self, [INFO] [stdout] | -- the lifetime is named here [INFO] [stdout] 39 | node: &'a Option>>, [INFO] [stdout] | -- the lifetime is named here [INFO] [stdout] 40 | ) -> Option<&BSTNode> { [INFO] [stdout] | ^^^^^^^^^^^ the same lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 40 | ) -> Option<&'a BSTNode> { [INFO] [stdout] | ++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s [INFO] running `Command { std: "docker" "inspect" "5deae8fa4e5c3f6e3f1f459f615384b3e907aab31de0067a240552a0bca62c33", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5deae8fa4e5c3f6e3f1f459f615384b3e907aab31de0067a240552a0bca62c33", kill_on_drop: false }` [INFO] [stdout] 5deae8fa4e5c3f6e3f1f459f615384b3e907aab31de0067a240552a0bca62c33