[INFO] cloning repository https://github.com/pzdkn/merkle-tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pzdkn/merkle-tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpzdkn%2Fmerkle-tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpzdkn%2Fmerkle-tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8b0f9d37b56acd7866c4835f4dd21296933a96e8
[INFO] checking pzdkn/merkle-tree against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpzdkn%2Fmerkle-tree" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/pzdkn/merkle-tree
[INFO] finished tweaking git repo https://github.com/pzdkn/merkle-tree
[INFO] tweaked toml for git repo https://github.com/pzdkn/merkle-tree written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/pzdkn/merkle-tree on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/pzdkn/merkle-tree 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cpufeatures v0.2.5
[INFO] [stderr]   Downloaded unicode-ident v1.0.6
[INFO] [stderr]   Downloaded block-buffer v0.10.3
[INFO] [stderr]   Downloaded generic-array v0.14.6
[INFO] [stderr]   Downloaded sha2 v0.10.6
[INFO] [stderr]   Downloaded quote v1.0.23
[INFO] [stderr]   Downloaded semver v1.0.16
[INFO] [stderr]   Downloaded proc-macro2 v1.0.49
[INFO] [stderr]   Downloaded syn v1.0.107
[INFO] [stderr]   Downloaded libc v0.2.138
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2898dc618de8e5a21a1bdb68e4e002b367ebbf484f9c075f33b8cc7f7543e875
[INFO] running `Command { std: "docker" "start" "-a" "2898dc618de8e5a21a1bdb68e4e002b367ebbf484f9c075f33b8cc7f7543e875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2898dc618de8e5a21a1bdb68e4e002b367ebbf484f9c075f33b8cc7f7543e875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2898dc618de8e5a21a1bdb68e4e002b367ebbf484f9c075f33b8cc7f7543e875", kill_on_drop: false }`
[INFO] [stdout] 2898dc618de8e5a21a1bdb68e4e002b367ebbf484f9c075f33b8cc7f7543e875
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c92338e4902a013744f69b7f7b672278a8094952c0f7b748a073b9db965199b
[INFO] running `Command { std: "docker" "start" "-a" "3c92338e4902a013744f69b7f7b672278a8094952c0f7b748a073b9db965199b", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.3
[INFO] [stderr]     Checking digest v0.10.6
[INFO] [stderr]     Checking sha2 v0.10.6
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]     Checking merkle-tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `children`
[INFO] [stdout]   --> src/lib.rs:45:38
[INFO] [stdout]    |
[INFO] [stdout] 45 |             Node::InternalNode{hash, children} => {return  hash;} 
[INFO] [stdout]    |                                      ^^^^^^^^ help: try ignoring the field: `children: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/lib.rs:46:36
[INFO] [stdout]    |
[INFO] [stdout] 46 |             Node::LeafNode { hash, data } => {return hash;}
[INFO] [stdout]    |                                    ^^^^ help: try ignoring the field: `data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hash`
[INFO] [stdout]   --> src/lib.rs:52:34
[INFO] [stdout]    |
[INFO] [stdout] 52 |             Node::InternalNode { hash, children } => {None}
[INFO] [stdout]    |                                  ^^^^ help: try ignoring the field: `hash: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `children`
[INFO] [stdout]   --> src/lib.rs:52:40
[INFO] [stdout]    |
[INFO] [stdout] 52 |             Node::InternalNode { hash, children } => {None}
[INFO] [stdout]    |                                        ^^^^^^^^ help: try ignoring the field: `children: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hash`
[INFO] [stdout]   --> src/lib.rs:53:30
[INFO] [stdout]    |
[INFO] [stdout] 53 |             Node::LeafNode { hash, data } => {Some(data)}
[INFO] [stdout]    |                              ^^^^ help: try ignoring the field: `hash: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:37:34
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn new_leaf(data: &'a u8) -> Node{
[INFO] [stdout]    |                        --        ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is named 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] 37 |     fn new_leaf(data: &'a u8) -> Node<'a>{
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:68:22
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn new(data: &Vec<u8>) -> MerkleTree{
[INFO] [stdout]    |                      ^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn new(data: &Vec<u8>) -> MerkleTree<'_>{
[INFO] [stdout]    |                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:138:22
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn get_leafs(&self) -> Vec<&Node>{
[INFO] [stdout]     |                      ^^^^^         ^^^^^
[INFO] [stdout]     |                      |             ||
[INFO] [stdout]     |                      |             |the same lifetime is hidden here
[INFO] [stdout]     |                      |             the same lifetime is elided here
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn get_leafs(&self) -> Vec<&Node<'_>>{
[INFO] [stdout]     |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `children`
[INFO] [stdout]   --> src/lib.rs:45:38
[INFO] [stdout]    |
[INFO] [stdout] 45 |             Node::InternalNode{hash, children} => {return  hash;} 
[INFO] [stdout]    |                                      ^^^^^^^^ help: try ignoring the field: `children: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/lib.rs:46:36
[INFO] [stdout]    |
[INFO] [stdout] 46 |             Node::LeafNode { hash, data } => {return hash;}
[INFO] [stdout]    |                                    ^^^^ help: try ignoring the field: `data: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hash`
[INFO] [stdout]   --> src/lib.rs:52:34
[INFO] [stdout]    |
[INFO] [stdout] 52 |             Node::InternalNode { hash, children } => {None}
[INFO] [stdout]    |                                  ^^^^ help: try ignoring the field: `hash: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `children`
[INFO] [stdout]   --> src/lib.rs:52:40
[INFO] [stdout]    |
[INFO] [stdout] 52 |             Node::InternalNode { hash, children } => {None}
[INFO] [stdout]    |                                        ^^^^^^^^ help: try ignoring the field: `children: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hash`
[INFO] [stdout]   --> src/lib.rs:53:30
[INFO] [stdout]    |
[INFO] [stdout] 53 |             Node::LeafNode { hash, data } => {Some(data)}
[INFO] [stdout]    |                              ^^^^ help: try ignoring the field: `hash: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_proof_len` is never used
[INFO] [stdout]    --> src/lib.rs:182:8
[INFO] [stdout]     |
[INFO] [stdout] 182 |     fn test_proof_len(){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:37:34
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn new_leaf(data: &'a u8) -> Node{
[INFO] [stdout]    |                        --        ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is named 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] 37 |     fn new_leaf(data: &'a u8) -> Node<'a>{
[INFO] [stdout]    |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:68:22
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn new(data: &Vec<u8>) -> MerkleTree{
[INFO] [stdout]    |                      ^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn new(data: &Vec<u8>) -> MerkleTree<'_>{
[INFO] [stdout]    |                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:138:22
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn get_leafs(&self) -> Vec<&Node>{
[INFO] [stdout]     |                      ^^^^^         ^^^^^
[INFO] [stdout]     |                      |             ||
[INFO] [stdout]     |                      |             |the same lifetime is hidden here
[INFO] [stdout]     |                      |             the same lifetime is elided here
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn get_leafs(&self) -> Vec<&Node<'_>>{
[INFO] [stdout]     |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.48s
[INFO] running `Command { std: "docker" "inspect" "3c92338e4902a013744f69b7f7b672278a8094952c0f7b748a073b9db965199b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c92338e4902a013744f69b7f7b672278a8094952c0f7b748a073b9db965199b", kill_on_drop: false }`
[INFO] [stdout] 3c92338e4902a013744f69b7f7b672278a8094952c0f7b748a073b9db965199b
