[INFO] fetching crate ece_421_sam_cynthia_aditya_trees 0.1.1...
[INFO] testing ece_421_sam_cynthia_aditya_trees-0.1.1 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate ece_421_sam_cynthia_aditya_trees 0.1.1 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate ece_421_sam_cynthia_aditya_trees 0.1.1
[INFO] finished tweaking crates.io crate ece_421_sam_cynthia_aditya_trees 0.1.1
[INFO] tweaked toml for crates.io crate ece_421_sam_cynthia_aditya_trees 0.1.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ece_421_sam_cynthia_aditya_trees 0.1.1 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ece_421_sam_cynthia_aditya_trees 0.1.1 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4de5a6a18709e8545aa1691d934ef5b339f20c1787a335f76e72f57f88a305cb
[INFO] running `Command { std: "docker" "start" "-a" "4de5a6a18709e8545aa1691d934ef5b339f20c1787a335f76e72f57f88a305cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4de5a6a18709e8545aa1691d934ef5b339f20c1787a335f76e72f57f88a305cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4de5a6a18709e8545aa1691d934ef5b339f20c1787a335f76e72f57f88a305cb", kill_on_drop: false }`
[INFO] [stdout] 4de5a6a18709e8545aa1691d934ef5b339f20c1787a335f76e72f57f88a305cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 922020b91b58f418ca2b99474e1f68d970e00bfd337a9a324c1b5e3650c4cd63
[INFO] running `Command { std: "docker" "start" "-a" "922020b91b58f418ca2b99474e1f68d970e00bfd337a9a324c1b5e3650c4cd63", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.90
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling ece_421_sam_cynthia_aditya_trees v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::seq::SliceRandom`
[INFO] [stdout]  --> src/AVLTree.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rand::seq::SliceRandom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rng` and `thread_rng`
[INFO] [stdout]  --> src/AVLTree.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::seq::SliceRandom`
[INFO] [stdout]  --> src/RBTree.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::seq::SliceRandom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rng` and `thread_rng`
[INFO] [stdout]  --> src/RBTree.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/RBTree.rs:382:36
[INFO] [stdout]     |
[INFO] [stdout] 382 |                     Some(ref y) => (Some(y.clone())),
[INFO] [stdout]     |                                    ^               ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 382 -                     Some(ref y) => (Some(y.clone())),
[INFO] [stdout] 382 +                     Some(ref y) => Some(y.clone()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/RBTree.rs:388:36
[INFO] [stdout]     |
[INFO] [stdout] 388 |                     Some(ref y) => (Some(y.clone())),
[INFO] [stdout]     |                                    ^               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 388 -                     Some(ref y) => (Some(y.clone())),
[INFO] [stdout] 388 +                     Some(ref y) => Some(y.clone()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_nodes_in_order` is never used
[INFO] [stdout]    --> src/AVLTree.rs:439:8
[INFO] [stdout]     |
[INFO] [stdout] 168 | impl AVLTree {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 439 |     fn get_nodes_in_order(&self) -> Vec<u32> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_nodes_in_order` is never used
[INFO] [stdout]    --> src/RBTree.rs:654:8
[INFO] [stdout]     |
[INFO] [stdout]  46 | impl RBTree {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 654 |     fn get_nodes_in_order(&self) -> Vec<u32> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `AVLTree` should have a snake case name
[INFO] [stdout]  --> src/lib.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod AVLTree;
[INFO] [stdout]   |         ^^^^^^^ help: convert the identifier to snake case: `avltree`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `RBTree` should have a snake case name
[INFO] [stdout]  --> src/lib.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod RBTree;
[INFO] [stdout]   |         ^^^^^^ help: convert the identifier to snake case: `rbtree`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::seq::SliceRandom`
[INFO] [stdout]  --> src/AVLTree.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rand::seq::SliceRandom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rng` and `thread_rng`
[INFO] [stdout]  --> src/AVLTree.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::seq::SliceRandom`
[INFO] [stdout]  --> src/RBTree.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::seq::SliceRandom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rng` and `thread_rng`
[INFO] [stdout]  --> src/RBTree.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/RBTree.rs:382:36
[INFO] [stdout]     |
[INFO] [stdout] 382 |                     Some(ref y) => (Some(y.clone())),
[INFO] [stdout]     |                                    ^               ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 382 -                     Some(ref y) => (Some(y.clone())),
[INFO] [stdout] 382 +                     Some(ref y) => Some(y.clone()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/RBTree.rs:388:36
[INFO] [stdout]     |
[INFO] [stdout] 388 |                     Some(ref y) => (Some(y.clone())),
[INFO] [stdout]     |                                    ^               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 388 -                     Some(ref y) => (Some(y.clone())),
[INFO] [stdout] 388 +                     Some(ref y) => Some(y.clone()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `search` and `get_nodes_in_order` are never used
[INFO] [stdout]    --> src/AVLTree.rs:173:12
[INFO] [stdout]     |
[INFO] [stdout] 168 | impl AVLTree {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 173 |     pub fn search(&self, val: u32) -> bool {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 439 |     fn get_nodes_in_order(&self) -> Vec<u32> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `search` and `get_nodes_in_order` are never used
[INFO] [stdout]    --> src/RBTree.rs:353:12
[INFO] [stdout]     |
[INFO] [stdout]  46 | impl RBTree {
[INFO] [stdout]     | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 353 |     pub fn search(&mut self, val: u32) -> Result<(), String> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 654 |     fn get_nodes_in_order(&self) -> Vec<u32> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `AVLTree` should have a snake case name
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | mod AVLTree;
[INFO] [stdout]   |     ^^^^^^^ help: convert the identifier to snake case: `avltree`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `RBTree` should have a snake case name
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | mod RBTree;
[INFO] [stdout]   |     ^^^^^^ help: convert the identifier to snake case: `rbtree`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.87s
[INFO] running `Command { std: "docker" "inspect" "922020b91b58f418ca2b99474e1f68d970e00bfd337a9a324c1b5e3650c4cd63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "922020b91b58f418ca2b99474e1f68d970e00bfd337a9a324c1b5e3650c4cd63", kill_on_drop: false }`
[INFO] [stdout] 922020b91b58f418ca2b99474e1f68d970e00bfd337a9a324c1b5e3650c4cd63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8c9befdeaa94435dbc7099d51f734ddc657b1f96d503d7e5e391573ad8b3462
[INFO] running `Command { std: "docker" "start" "-a" "d8c9befdeaa94435dbc7099d51f734ddc657b1f96d503d7e5e391573ad8b3462", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling semver-parser v0.7.0
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[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling memchr v2.3.4
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[INFO] [stderr]    Compiling plotters-backend v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.124
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[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling plotters-svg v0.3.0
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling half v1.7.1
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling itertools v0.10.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stdout] warning: unused import: `rand::seq::SliceRandom`
[INFO] [stdout]  --> src/AVLTree.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rand::seq::SliceRandom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rng` and `thread_rng`
[INFO] [stdout]  --> src/AVLTree.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::seq::SliceRandom`
[INFO] [stdout]  --> src/RBTree.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::seq::SliceRandom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rng` and `thread_rng`
[INFO] [stdout]  --> src/RBTree.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/RBTree.rs:382:36
[INFO] [stdout]     |
[INFO] [stdout] 382 |                     Some(ref y) => (Some(y.clone())),
[INFO] [stdout]     |                                    ^               ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 382 -                     Some(ref y) => (Some(y.clone())),
[INFO] [stdout] 382 +                     Some(ref y) => Some(y.clone()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/RBTree.rs:388:36
[INFO] [stdout]     |
[INFO] [stdout] 388 |                     Some(ref y) => (Some(y.clone())),
[INFO] [stdout]     |                                    ^               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 388 -                     Some(ref y) => (Some(y.clone())),
[INFO] [stdout] 388 +                     Some(ref y) => Some(y.clone()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_nodes_in_order` is never used
[INFO] [stdout]    --> src/AVLTree.rs:439:8
[INFO] [stdout]     |
[INFO] [stdout] 168 | impl AVLTree {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 439 |     fn get_nodes_in_order(&self) -> Vec<u32> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_nodes_in_order` is never used
[INFO] [stdout]    --> src/RBTree.rs:654:8
[INFO] [stdout]     |
[INFO] [stdout]  46 | impl RBTree {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 654 |     fn get_nodes_in_order(&self) -> Vec<u32> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `AVLTree` should have a snake case name
[INFO] [stdout]  --> src/lib.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod AVLTree;
[INFO] [stdout]   |         ^^^^^^^ help: convert the identifier to snake case: `avltree`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `RBTree` should have a snake case name
[INFO] [stdout]  --> src/lib.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod RBTree;
[INFO] [stdout]   |         ^^^^^^ help: convert the identifier to snake case: `rbtree`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling criterion-plot v0.4.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.3
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling plotters v0.3.0
[INFO] [stderr]    Compiling regex v1.4.5
[INFO] [stderr]    Compiling bstr v0.2.15
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.3.4
[INFO] [stderr]    Compiling ece_421_sam_cynthia_aditya_trees v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Rng`
[INFO] [stdout]  --> src/AVLTree.rs:9:24
[INFO] [stdout]   |
[INFO] [stdout] 9 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |                        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Rng`
[INFO] [stdout]  --> src/RBTree.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/RBTree.rs:382:36
[INFO] [stdout]     |
[INFO] [stdout] 382 |                     Some(ref y) => (Some(y.clone())),
[INFO] [stdout]     |                                    ^               ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 382 -                     Some(ref y) => (Some(y.clone())),
[INFO] [stdout] 382 +                     Some(ref y) => Some(y.clone()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/RBTree.rs:388:36
[INFO] [stdout]     |
[INFO] [stdout] 388 |                     Some(ref y) => (Some(y.clone())),
[INFO] [stdout]     |                                    ^               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 388 -                     Some(ref y) => (Some(y.clone())),
[INFO] [stdout] 388 +                     Some(ref y) => Some(y.clone()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Rng`
[INFO] [stdout]  --> src/AVLTree.rs:9:24
[INFO] [stdout]   |
[INFO] [stdout] 9 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |                        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Rng`
[INFO] [stdout]  --> src/RBTree.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::{thread_rng, Rng};
[INFO] [stdout]   |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/RBTree.rs:382:36
[INFO] [stdout]     |
[INFO] [stdout] 382 |                     Some(ref y) => (Some(y.clone())),
[INFO] [stdout]     |                                    ^               ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 382 -                     Some(ref y) => (Some(y.clone())),
[INFO] [stdout] 382 +                     Some(ref y) => Some(y.clone()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/RBTree.rs:388:36
[INFO] [stdout]     |
[INFO] [stdout] 388 |                     Some(ref y) => (Some(y.clone())),
[INFO] [stdout]     |                                    ^               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 388 -                     Some(ref y) => (Some(y.clone())),
[INFO] [stdout] 388 +                     Some(ref y) => Some(y.clone()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `AVLTree` should have a snake case name
[INFO] [stdout]  --> src/lib.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod AVLTree;
[INFO] [stdout]   |         ^^^^^^^ help: convert the identifier to snake case: `avltree`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `RBTree` should have a snake case name
[INFO] [stdout]  --> src/lib.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod RBTree;
[INFO] [stdout]   |         ^^^^^^ help: convert the identifier to snake case: `rbtree`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `AVLTree` should have a snake case name
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | mod AVLTree;
[INFO] [stdout]   |     ^^^^^^^ help: convert the identifier to snake case: `avltree`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `RBTree` should have a snake case name
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | mod RBTree;
[INFO] [stdout]   |     ^^^^^^ help: convert the identifier to snake case: `rbtree`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 17.00s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.4
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "d8c9befdeaa94435dbc7099d51f734ddc657b1f96d503d7e5e391573ad8b3462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8c9befdeaa94435dbc7099d51f734ddc657b1f96d503d7e5e391573ad8b3462", kill_on_drop: false }`
[INFO] [stdout] d8c9befdeaa94435dbc7099d51f734ddc657b1f96d503d7e5e391573ad8b3462
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d555ed95063c890b445b334e08ee0cb130b2ab7d8292228d5c644204ebb29fc7
[INFO] running `Command { std: "docker" "start" "-a" "d555ed95063c890b445b334e08ee0cb130b2ab7d8292228d5c644204ebb29fc7", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `rand::seq::SliceRandom`
[INFO] [stderr]  --> src/AVLTree.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use rand::seq::SliceRandom;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Rng` and `thread_rng`
[INFO] [stderr]  --> src/AVLTree.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 | use rand::{thread_rng, Rng};
[INFO] [stderr]   |            ^^^^^^^^^^  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::seq::SliceRandom`
[INFO] [stderr]  --> src/RBTree.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand::seq::SliceRandom;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Rng` and `thread_rng`
[INFO] [stderr]  --> src/RBTree.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | use rand::{thread_rng, Rng};
[INFO] [stderr]   |            ^^^^^^^^^^  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around match arm expression
[INFO] [stderr]    --> src/RBTree.rs:382:36
[INFO] [stderr]     |
[INFO] [stderr] 382 |                     Some(ref y) => (Some(y.clone())),
[INFO] [stderr]     |                                    ^               ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 382 -                     Some(ref y) => (Some(y.clone())),
[INFO] [stderr] 382 +                     Some(ref y) => Some(y.clone()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around match arm expression
[INFO] [stderr]    --> src/RBTree.rs:388:36
[INFO] [stderr]     |
[INFO] [stderr] 388 |                     Some(ref y) => (Some(y.clone())),
[INFO] [stderr]     |                                    ^               ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 388 -                     Some(ref y) => (Some(y.clone())),
[INFO] [stderr] 388 +                     Some(ref y) => Some(y.clone()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: method `get_nodes_in_order` is never used
[INFO] [stderr]    --> src/AVLTree.rs:439:8
[INFO] [stderr]     |
[INFO] [stderr] 168 | impl AVLTree {
[INFO] [stderr]     | ------------ method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 439 |     fn get_nodes_in_order(&self) -> Vec<u32> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `get_nodes_in_order` is never used
[INFO] [stderr]    --> src/RBTree.rs:654:8
[INFO] [stderr]     |
[INFO] [stderr]  46 | impl RBTree {
[INFO] [stderr]     | ----------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 654 |     fn get_nodes_in_order(&self) -> Vec<u32> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: module `AVLTree` should have a snake case name
[INFO] [stderr]  --> src/lib.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub mod AVLTree;
[INFO] [stderr]   |         ^^^^^^^ help: convert the identifier to snake case: `avltree`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: module `RBTree` should have a snake case name
[INFO] [stderr]  --> src/lib.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub mod RBTree;
[INFO] [stderr]   |         ^^^^^^ help: convert the identifier to snake case: `rbtree`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]  --> src/AVLTree.rs:9:24
[INFO] [stderr]   |
[INFO] [stderr] 9 | use rand::{thread_rng, Rng};
[INFO] [stderr]   |                        ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]  --> src/RBTree.rs:2:24
[INFO] [stderr]   |
[INFO] [stderr] 2 | use rand::{thread_rng, Rng};
[INFO] [stderr]   |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ece_421_sam_cynthia_aditya_trees` (lib) generated 10 warnings (run `cargo fix --lib -p ece_421_sam_cynthia_aditya_trees` to apply 6 suggestions)
[INFO] [stderr] warning: `ece_421_sam_cynthia_aditya_trees` (lib test) generated 6 warnings (4 duplicates) (run `cargo fix --lib -p ece_421_sam_cynthia_aditya_trees --tests` to apply 2 suggestions)
[INFO] [stderr] warning: module `AVLTree` should have a snake case name
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | mod AVLTree;
[INFO] [stderr]   |     ^^^^^^^ help: convert the identifier to snake case: `avltree`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: module `RBTree` should have a snake case name
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | mod RBTree;
[INFO] [stderr]   |     ^^^^^^ help: convert the identifier to snake case: `rbtree`
[INFO] [stderr] 
[INFO] [stderr] warning: `ece_421_sam_cynthia_aditya_trees` (bin "ece_421_sam_cynthia_aditya_trees" test) generated 6 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.4
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ece_421_sam_cynthia_aditya_trees-97f52d7b2ea25937)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test AVLTree::tests::nodes_deleted_avl ... ok
[INFO] [stdout] test RBTree::tests::nodes_deleted_rb ... ok
[INFO] [stdout] test AVLTree::tests::nodes_sorted_avl ... ok
[INFO] [stdout] test RBTree::tests::nodes_sorted_rb ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ece_421_sam_cynthia_aditya_trees-4fd606b49e40d46d)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test RBTree::tests::nodes_deleted_rb ... ok
[INFO] [stdout] test RBTree::tests::nodes_sorted_rb ... ok
[INFO] [stdout] test AVLTree::tests::nodes_deleted_avl ... ok
[INFO] [stdout] test AVLTree::tests::nodes_sorted_avl ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ece_421_sam_cynthia_aditya_trees
[INFO] [stderr] warning: unnecessary parentheses around match arm expression
[INFO] [stderr]    --> src/RBTree.rs:382:36
[INFO] [stderr]     |
[INFO] [stderr] 382 |                     Some(ref y) => (Some(y.clone())),
[INFO] [stderr]     |                                    ^               ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 382 -                     Some(ref y) => (Some(y.clone())),
[INFO] [stderr] 382 +                     Some(ref y) => Some(y.clone()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around match arm expression
[INFO] [stderr]    --> src/RBTree.rs:388:36
[INFO] [stderr]     |
[INFO] [stderr] 388 |                     Some(ref y) => (Some(y.clone())),
[INFO] [stderr]     |                                    ^               ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 388 -                     Some(ref y) => (Some(y.clone())),
[INFO] [stderr] 388 +                     Some(ref y) => Some(y.clone()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d555ed95063c890b445b334e08ee0cb130b2ab7d8292228d5c644204ebb29fc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d555ed95063c890b445b334e08ee0cb130b2ab7d8292228d5c644204ebb29fc7", kill_on_drop: false }`
[INFO] [stdout] d555ed95063c890b445b334e08ee0cb130b2ab7d8292228d5c644204ebb29fc7