[INFO] cloning repository https://github.com/yuliyu123/rust_algo [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yuliyu123/rust_algo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuliyu123%2Frust_algo", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuliyu123%2Frust_algo'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a641f99a8fa52ead89a6c1e98066ced6d1e2b188 [INFO] checking yuliyu123/rust_algo against master#00bfd6b2734d9c28a147bf237490995731781fdd for pr-117984 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuliyu123%2Frust_algo" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/yuliyu123/rust_algo on toolchain 00bfd6b2734d9c28a147bf237490995731781fdd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/yuliyu123/rust_algo [INFO] finished tweaking git repo https://github.com/yuliyu123/rust_algo [INFO] tweaked toml for git repo https://github.com/yuliyu123/rust_algo written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/yuliyu123/rust_algo 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" "+00bfd6b2734d9c28a147bf237490995731781fdd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 25a1a65ae0d4b8d0ce95c5e83be486c8804d1e9270701ceb2ae0eef575c78129 [INFO] running `Command { std: "docker" "start" "-a" "25a1a65ae0d4b8d0ce95c5e83be486c8804d1e9270701ceb2ae0eef575c78129", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "25a1a65ae0d4b8d0ce95c5e83be486c8804d1e9270701ceb2ae0eef575c78129", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "25a1a65ae0d4b8d0ce95c5e83be486c8804d1e9270701ceb2ae0eef575c78129", kill_on_drop: false }` [INFO] [stdout] 25a1a65ae0d4b8d0ce95c5e83be486c8804d1e9270701ceb2ae0eef575c78129 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8c0a68101488152098747df1cc36abb8c0d6f0d1397b76492f90bb8cd8a5c80a [INFO] running `Command { std: "docker" "start" "-a" "8c0a68101488152098747df1cc36abb8c0d6f0d1397b76492f90bb8cd8a5c80a", kill_on_drop: false }` [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling typenum v1.15.0 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.40 [INFO] [stderr] Compiling unicode-ident v1.0.2 [INFO] [stderr] Compiling quote v1.0.20 [INFO] [stderr] Compiling syn v1.0.98 [INFO] [stderr] Compiling unicode-segmentation v1.9.0 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Compiling gcc v0.3.55 [INFO] [stderr] Compiling generic-array v0.14.5 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking block-padding v0.2.1 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Checking opaque-debug v0.3.0 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Checking keccak v0.1.2 [INFO] [stderr] Checking cpufeatures v0.2.2 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Checking getrandom v0.2.7 [INFO] [stderr] Compiling rust-crypto v0.2.36 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking fastrand v1.7.0 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking tempfile v3.3.0 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking hex v0.4.3 [INFO] [stderr] Checking bit-vec v0.6.3 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Checking rusty-fork v0.3.0 [INFO] [stderr] Checking block-buffer v0.10.2 [INFO] [stderr] Checking crypto-common v0.1.6 [INFO] [stderr] Checking block-buffer v0.9.0 [INFO] [stderr] Checking digest v0.9.0 [INFO] [stderr] Checking bit-set v0.5.2 [INFO] [stderr] Checking digest v0.10.3 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking sha3 v0.9.1 [INFO] [stderr] Checking rand_xorshift v0.3.0 [INFO] [stderr] Checking sha2 v0.10.2 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking quick-error v2.0.1 [INFO] [stderr] Checking regex-syntax v0.6.27 [INFO] [stderr] Checking proptest v1.0.0 [INFO] [stderr] Compiling structopt-derive v0.4.18 [INFO] [stderr] Checking structopt v0.3.26 [INFO] [stderr] Checking rust_algo v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `MerkleTree` is never constructed [INFO] [stdout] --> src/merkle/merkle.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 15 | pub struct MerkleTree { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `merkle_proof`, `merkle_root`, and `nodes` are never used [INFO] [stdout] --> src/merkle/merkle.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 20 | / impl MerkleTree [INFO] [stdout] 21 | | where [INFO] [stdout] 22 | | T: Ord + Default + Clone, [INFO] [stdout] 23 | | M: Merge, [INFO] [stdout] | |_______________________- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 26 | pub fn merkle_proof(&self, leaf_indices: &[u32]) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 72 | pub fn merkle_root(&self) -> T { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 80 | pub fn nodes(&self) -> &[T] { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `MerkleProof` is never constructed [INFO] [stdout] --> src/merkle/merkle.rs:85:12 [INFO] [stdout] | [INFO] [stdout] 85 | pub struct MerkleProof { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `root`, `verify`, `indices`, and `lemmas` are never used [INFO] [stdout] --> src/merkle/merkle.rs:96:12 [INFO] [stdout] | [INFO] [stdout] 91 | / impl MerkleProof [INFO] [stdout] 92 | | where [INFO] [stdout] 93 | | T: Ord + Default + Clone, [INFO] [stdout] 94 | | M: Merge, [INFO] [stdout] | |_______________________- associated items in this implementation [INFO] [stdout] 95 | { [INFO] [stdout] 96 | pub fn new(indices: Vec, lemmas: Vec) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 104 | pub fn root(&self, leaves: &[T]) -> Option { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 150 | pub fn verify(&self, root: &T, leaves: &[T]) -> bool { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 157 | pub fn indices(&self) -> &[u32] { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 161 | pub fn lemmas(&self) -> &[T] { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `merkle_root`, `build_merkle_tree`, and `build_merkle_proof` are never used [INFO] [stdout] --> src/merkle/merkle.rs:177:12 [INFO] [stdout] | [INFO] [stdout] 172 | / impl CBMT [INFO] [stdout] 173 | | where [INFO] [stdout] 174 | | T: Ord + Default + Clone, [INFO] [stdout] 175 | | M: Merge, [INFO] [stdout] | |_______________________- associated functions in this implementation [INFO] [stdout] 176 | { [INFO] [stdout] 177 | pub fn merkle_root(leaves: &[T]) -> T { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 201 | pub fn build_merkle_tree(leaves: &[T]) -> MerkleTree { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 223 | pub fn build_merkle_proof(leaves: &[T], leaf_indices: &[u32]) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `merkle_root` and `nodes` are never used [INFO] [stdout] --> src/merkle/merkle.rs:72:12 [INFO] [stdout] | [INFO] [stdout] 20 | / impl MerkleTree [INFO] [stdout] 21 | | where [INFO] [stdout] 22 | | T: Ord + Default + Clone, [INFO] [stdout] 23 | | M: Merge, [INFO] [stdout] | |_______________________- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 72 | pub fn merkle_root(&self) -> T { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 80 | pub fn nodes(&self) -> &[T] { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `verify`, `indices`, and `lemmas` are never used [INFO] [stdout] --> src/merkle/merkle.rs:96:12 [INFO] [stdout] | [INFO] [stdout] 91 | / impl MerkleProof [INFO] [stdout] 92 | | where [INFO] [stdout] 93 | | T: Ord + Default + Clone, [INFO] [stdout] 94 | | M: Merge, [INFO] [stdout] | |_______________________- associated items in this implementation [INFO] [stdout] 95 | { [INFO] [stdout] 96 | pub fn new(indices: Vec, lemmas: Vec) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 150 | pub fn verify(&self, root: &T, leaves: &[T]) -> bool { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 157 | pub fn indices(&self) -> &[u32] { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 161 | pub fn lemmas(&self) -> &[T] { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.07s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24 [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" "8c0a68101488152098747df1cc36abb8c0d6f0d1397b76492f90bb8cd8a5c80a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8c0a68101488152098747df1cc36abb8c0d6f0d1397b76492f90bb8cd8a5c80a", kill_on_drop: false }` [INFO] [stdout] 8c0a68101488152098747df1cc36abb8c0d6f0d1397b76492f90bb8cd8a5c80a