[INFO] cloning repository https://github.com/beppune/avl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/beppune/avl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeppune%2Favl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeppune%2Favl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cbb222a136f802a6c4c6b59600d4761cd2cdbabc
[INFO] checking beppune/avl against try#db4e1d23234d93b5e96ecc768b35d9090c32cddf for pr-149901
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeppune%2Favl" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/beppune/avl
[INFO] finished tweaking git repo https://github.com/beppune/avl
[INFO] tweaked toml for git repo https://github.com/beppune/avl written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/beppune/avl on toolchain db4e1d23234d93b5e96ecc768b35d9090c32cddf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/beppune/avl 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" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc9dc20cd4beec199c6bbcb24fe4eab00e774b407ebe48848b73c10674881b40
[INFO] running `Command { std: "docker" "start" "-a" "bc9dc20cd4beec199c6bbcb24fe4eab00e774b407ebe48848b73c10674881b40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc9dc20cd4beec199c6bbcb24fe4eab00e774b407ebe48848b73c10674881b40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc9dc20cd4beec199c6bbcb24fe4eab00e774b407ebe48848b73c10674881b40", kill_on_drop: false }`
[INFO] [stdout] bc9dc20cd4beec199c6bbcb24fe4eab00e774b407ebe48848b73c10674881b40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d3fd42f2332588d02cf8661cb2dd452cbf17666a1db3a6b35b393a9e9e8aa91
[INFO] running `Command { std: "docker" "start" "-a" "3d3fd42f2332588d02cf8661cb2dd452cbf17666a1db3a6b35b393a9e9e8aa91", kill_on_drop: false }`
[INFO] [stderr]     Checking avl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `print_type_of` is never used
[INFO] [stdout]  --> src/lib.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn print_type_of<T>(_: &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: method `height` is never used
[INFO] [stdout]   --> src/lib.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl Tree {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub fn height(&mut self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:87:21
[INFO] [stdout]    |
[INFO] [stdout] 87 |     fn rotate_right(A:&mut SubTree) {
[INFO] [stdout]    |                     ^ help: convert the identifier to snake case: `a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:89:17
[INFO] [stdout]    |
[INFO] [stdout] 89 |         let mut B = mem::replace( &mut A.as_mut().unwrap().left, None);
[INFO] [stdout]    |                 ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:95:20
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn rotate_left(A:&mut SubTree) {
[INFO] [stdout]    |                    ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:97:17
[INFO] [stdout]    |
[INFO] [stdout] 97 |         let mut B = mem::replace( &mut A.as_mut().unwrap().right, None);
[INFO] [stdout]    |                 ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |         let A = &mut self.root;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_type_of` is never used
[INFO] [stdout]  --> src/lib.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn print_type_of<T>(_: &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: struct `Tree` is never constructed
[INFO] [stdout]  --> src/lib.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Tree {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `SubTree` is never used
[INFO] [stdout]   --> src/lib.rs:14:6
[INFO] [stdout]    |
[INFO] [stdout] 14 | type SubTree = Option<Box<Node>>;
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]   --> src/lib.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Node {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Ballance` is never used
[INFO] [stdout]   --> src/lib.rs:24:6
[INFO] [stdout]    |
[INFO] [stdout] 24 | enum Ballance{
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/lib.rs:32:12
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl Tree {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout]  31 |
[INFO] [stdout]  32 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  36 |     pub fn put(&mut self, value:i32) -> bool {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  57 |     pub fn height(&mut self) -> usize {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  63 |     fn h(sub:&SubTree) -> usize {
[INFO] [stdout]     |        ^
[INFO] [stdout] ...
[INFO] [stdout]  70 |     pub fn bf(sub: &SubTree) -> Ballance {
[INFO] [stdout]     |            ^^
[INFO] [stdout] ...
[INFO] [stdout]  87 |     fn rotate_right(A:&mut SubTree) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  95 |     fn rotate_left(A:&mut SubTree) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |     pub fn rotate(&mut self) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:87:21
[INFO] [stdout]    |
[INFO] [stdout] 87 |     fn rotate_right(A:&mut SubTree) {
[INFO] [stdout]    |                     ^ help: convert the identifier to snake case: `a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:89:17
[INFO] [stdout]    |
[INFO] [stdout] 89 |         let mut B = mem::replace( &mut A.as_mut().unwrap().left, None);
[INFO] [stdout]    |                 ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:95:20
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn rotate_left(A:&mut SubTree) {
[INFO] [stdout]    |                    ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:97:17
[INFO] [stdout]    |
[INFO] [stdout] 97 |         let mut B = mem::replace( &mut A.as_mut().unwrap().right, None);
[INFO] [stdout]    |                 ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |         let A = &mut self.root;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "3d3fd42f2332588d02cf8661cb2dd452cbf17666a1db3a6b35b393a9e9e8aa91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d3fd42f2332588d02cf8661cb2dd452cbf17666a1db3a6b35b393a9e9e8aa91", kill_on_drop: false }`
[INFO] [stdout] 3d3fd42f2332588d02cf8661cb2dd452cbf17666a1db3a6b35b393a9e9e8aa91