[INFO] cloning repository https://github.com/jstadev/merkle-activity
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jstadev/merkle-activity" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjstadev%2Fmerkle-activity", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjstadev%2Fmerkle-activity'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b9567eadd64f07d3c692a6633b6bf6f4cd209f99
[INFO] checking jstadev/merkle-activity against try#9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869 for pr-129249
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjstadev%2Fmerkle-activity" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jstadev/merkle-activity on toolchain 9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jstadev/merkle-activity
[INFO] finished tweaking git repo https://github.com/jstadev/merkle-activity
[INFO] tweaked toml for git repo https://github.com/jstadev/merkle-activity written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/jstadev/merkle-activity 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" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 119d0ca16e24f71fdd3f5f83e878086b942cef88615c014640f3fad233a7ec4f
[INFO] running `Command { std: "docker" "start" "-a" "119d0ca16e24f71fdd3f5f83e878086b942cef88615c014640f3fad233a7ec4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "119d0ca16e24f71fdd3f5f83e878086b942cef88615c014640f3fad233a7ec4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "119d0ca16e24f71fdd3f5f83e878086b942cef88615c014640f3fad233a7ec4f", kill_on_drop: false }`
[INFO] [stdout] 119d0ca16e24f71fdd3f5f83e878086b942cef88615c014640f3fad233a7ec4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9543f8ea2aae74b8f13ac2a6e6c0ecdca9810869" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 019341a9bcfb534f26533d32d3ffa5a8b7b2952224cbb43b43d7b802c48d6bc3
[INFO] running `Command { std: "docker" "start" "-a" "019341a9bcfb534f26533d32d3ffa5a8b7b2952224cbb43b43d7b802c48d6bc3", kill_on_drop: false }`
[INFO] [stderr]     Checking merkle-activity v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `blocks`
[INFO] [stdout]   --> src/main.rs:27:19
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn pad_base_layer(blocks: &mut Vec<&str>) {
[INFO] [stdout]    |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_blocks`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]   --> src/main.rs:36:28
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn concatenate_hash_values(left: HashValue, right: HashValue) -> HashValue {
[INFO] [stdout]    |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]   --> src/main.rs:36:45
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn concatenate_hash_values(left: HashValue, right: HashValue) -> HashValue {
[INFO] [stdout]    |                                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sentence`
[INFO] [stdout]   --> src/main.rs:48:26
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn calculate_merkle_root(sentence: &str) -> HashValue {
[INFO] [stdout]    |                          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sentence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sentence`
[INFO] [stdout]   --> src/main.rs:70:19
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn generate_proof(sentence: &str, index: usize) -> (HashValue, Vec<SiblingNode>) {
[INFO] [stdout]    |                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sentence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/main.rs:70:35
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn generate_proof(sentence: &str, index: usize) -> (HashValue, Vec<SiblingNode>) {
[INFO] [stdout]    |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]   --> src/main.rs:76:19
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn validate_proof(root: &str, word: &str, proof: Vec<SiblingNode>) -> bool {
[INFO] [stdout]    |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]   --> src/main.rs:76:31
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn validate_proof(root: &str, word: &str, proof: Vec<SiblingNode>) -> bool {
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `proof`
[INFO] [stdout]   --> src/main.rs:76:43
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn validate_proof(root: &str, word: &str, proof: Vec<SiblingNode>) -> bool {
[INFO] [stdout]    |                                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_proof`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pad_base_layer` is never used
[INFO] [stdout]   --> src/main.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn pad_base_layer(blocks: &mut Vec<&str>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `concatenate_hash_values` is never used
[INFO] [stdout]   --> src/main.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn concatenate_hash_values(left: HashValue, right: HashValue) -> HashValue {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_merkle_root` is never used
[INFO] [stdout]   --> src/main.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn calculate_merkle_root(sentence: &str) -> HashValue {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SiblingNode` is never used
[INFO] [stdout]   --> src/main.rs:55:6
[INFO] [stdout]    |
[INFO] [stdout] 55 | enum SiblingNode {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_proof` is never used
[INFO] [stdout]   --> src/main.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn generate_proof(sentence: &str, index: usize) -> (HashValue, Vec<SiblingNode>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_proof` is never used
[INFO] [stdout]   --> src/main.rs:76:4
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn validate_proof(root: &str, word: &str, proof: Vec<SiblingNode>) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `blocks`
[INFO] [stdout]   --> src/main.rs:27:19
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn pad_base_layer(blocks: &mut Vec<&str>) {
[INFO] [stdout]    |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_blocks`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]   --> src/main.rs:36:28
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn concatenate_hash_values(left: HashValue, right: HashValue) -> HashValue {
[INFO] [stdout]    |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]   --> src/main.rs:36:45
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn concatenate_hash_values(left: HashValue, right: HashValue) -> HashValue {
[INFO] [stdout]    |                                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sentence`
[INFO] [stdout]   --> src/main.rs:48:26
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn calculate_merkle_root(sentence: &str) -> HashValue {
[INFO] [stdout]    |                          ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sentence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sentence`
[INFO] [stdout]   --> src/main.rs:70:19
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn generate_proof(sentence: &str, index: usize) -> (HashValue, Vec<SiblingNode>) {
[INFO] [stdout]    |                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sentence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/main.rs:70:35
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn generate_proof(sentence: &str, index: usize) -> (HashValue, Vec<SiblingNode>) {
[INFO] [stdout]    |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]   --> src/main.rs:76:19
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn validate_proof(root: &str, word: &str, proof: Vec<SiblingNode>) -> bool {
[INFO] [stdout]    |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `word`
[INFO] [stdout]   --> src/main.rs:76:31
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn validate_proof(root: &str, word: &str, proof: Vec<SiblingNode>) -> bool {
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_word`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `proof`
[INFO] [stdout]   --> src/main.rs:76:43
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn validate_proof(root: &str, word: &str, proof: Vec<SiblingNode>) -> bool {
[INFO] [stdout]    |                                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_proof`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pad_base_layer` is never used
[INFO] [stdout]   --> src/main.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn pad_base_layer(blocks: &mut Vec<&str>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `concatenate_hash_values` is never used
[INFO] [stdout]   --> src/main.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn concatenate_hash_values(left: HashValue, right: HashValue) -> HashValue {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_merkle_root` is never used
[INFO] [stdout]   --> src/main.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn calculate_merkle_root(sentence: &str) -> HashValue {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SiblingNode` is never used
[INFO] [stdout]   --> src/main.rs:55:6
[INFO] [stdout]    |
[INFO] [stdout] 55 | enum SiblingNode {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_proof` is never used
[INFO] [stdout]   --> src/main.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn generate_proof(sentence: &str, index: usize) -> (HashValue, Vec<SiblingNode>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_proof` is never used
[INFO] [stdout]   --> src/main.rs:76:4
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn validate_proof(root: &str, word: &str, proof: Vec<SiblingNode>) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "019341a9bcfb534f26533d32d3ffa5a8b7b2952224cbb43b43d7b802c48d6bc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "019341a9bcfb534f26533d32d3ffa5a8b7b2952224cbb43b43d7b802c48d6bc3", kill_on_drop: false }`
[INFO] [stdout] 019341a9bcfb534f26533d32d3ffa5a8b7b2952224cbb43b43d7b802c48d6bc3