[INFO] cloning repository https://github.com/shota-tsuji/algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shota-tsuji/algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshota-tsuji%2Falgorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshota-tsuji%2Falgorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 69c01b71c35a34a943d7294a485ca1edd34f1889
[INFO] checking shota-tsuji/algorithms against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshota-tsuji%2Falgorithms" "/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/shota-tsuji/algorithms on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shota-tsuji/algorithms
[INFO] finished tweaking git repo https://github.com/shota-tsuji/algorithms
[INFO] tweaked toml for git repo https://github.com/shota-tsuji/algorithms written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/shota-tsuji/algorithms 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 423af33297ae57c58fc8331c405e4a94b2526c7f07dee6d7ed6fb3612e87afe0
[INFO] running `Command { std: "docker" "start" "-a" "423af33297ae57c58fc8331c405e4a94b2526c7f07dee6d7ed6fb3612e87afe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "423af33297ae57c58fc8331c405e4a94b2526c7f07dee6d7ed6fb3612e87afe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "423af33297ae57c58fc8331c405e4a94b2526c7f07dee6d7ed6fb3612e87afe0", kill_on_drop: false }`
[INFO] [stdout] 423af33297ae57c58fc8331c405e4a94b2526c7f07dee6d7ed6fb3612e87afe0
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 779a6c071ddd07ee3af40aa0e35955ee6bbf1ac715936bb93e644faaddc0ad3d
[INFO] running `Command { std: "docker" "start" "-a" "779a6c071ddd07ee3af40aa0e35955ee6bbf1ac715936bb93e644faaddc0ad3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]   --> src/bv.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         i -= v0;
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BWT` is never constructed
[INFO] [stdout]  --> src/bwt.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct BWT {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/bwt.rs:13:8
[INFO] [stdout]     |
[INFO] [stdout] 12  | impl BWT {
[INFO] [stdout]     | -------- associated items in this implementation
[INFO] [stdout] 13  |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22  |     fn sa2char(&self, i: usize, depth: u64) -> char {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27  |     fn sort(&mut self, begin: i64, end: i64, depth: u64) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 87  |     fn build(&mut self, str: &str) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |     fn get(&self, i: usize) -> char {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     fn get_str(&self) -> String {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 135 |     fn print_sa(&self) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SMALL_BLOCK_SIZE` is never used
[INFO] [stdout]  --> src/bv.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const SMALL_BLOCK_SIZE: u64 = 64;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BLOCK_RATE` is never used
[INFO] [stdout]  --> src/bv.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | const BLOCK_RATE: u64 = 8;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LARGE_BLOCK_SIZE` is never used
[INFO] [stdout]  --> src/bv.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const LARGE_BLOCK_SIZE: u64 = 512;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rank64` is never used
[INFO] [stdout]  --> src/bv.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn rank64(x: u64, i: u64, b: bool) -> u64 {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `select64` is never used
[INFO] [stdout]   --> src/bv.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn select64(x: u64, mut i: u64, b: bool) -> u64 {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BitVector` is never constructed
[INFO] [stdout]   --> src/bv.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | struct BitVector {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set`, `size`, `build`, `rank`, and `select` are never used
[INFO] [stdout]    --> src/bv.rs:78:8
[INFO] [stdout]     |
[INFO] [stdout] 77  | impl BitVector {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 78  |     fn new() -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 87  |     fn set(&mut self, i: u64, b: bool) {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 98  |     fn size(&self, b: bool) -> u64 {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     fn build(&mut self) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |     fn rank(&self, i: u64, b: bool) -> u64 {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 140 |     fn select(&self, i: u64, b: bool) -> u64 {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/bwt.rs:88:22
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let str = str.clone().to_owned() + "\0";
[INFO] [stdout]    |                      ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `i` is never read
[INFO] [stdout]   --> src/bv.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         i -= v0;
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/bwt.rs:88:22
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let str = str.clone().to_owned() + "\0";
[INFO] [stdout]    |                      ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/v2_dbl.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct DbNode<T> {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 15 |     data: T,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DbNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/v2_dbl.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct DbNode<T> {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 15 |     data: T,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DbNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `Command { std: "docker" "inspect" "779a6c071ddd07ee3af40aa0e35955ee6bbf1ac715936bb93e644faaddc0ad3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "779a6c071ddd07ee3af40aa0e35955ee6bbf1ac715936bb93e644faaddc0ad3d", kill_on_drop: false }`
[INFO] [stdout] 779a6c071ddd07ee3af40aa0e35955ee6bbf1ac715936bb93e644faaddc0ad3d