[INFO] cloning repository https://github.com/ycatbink0t/substring_algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ycatbink0t/substring_algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fycatbink0t%2Fsubstring_algorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fycatbink0t%2Fsubstring_algorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 77b3b3c220640fe94e3a508f23c46b875230c435
[INFO] checking ycatbink0t/substring_algorithms against try#c05ee43175e02d208faed1fcc0f436c56e48bba6 for pr-92413
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fycatbink0t%2Fsubstring_algorithms" "/workspace/builds/worker-50/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-50/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ycatbink0t/substring_algorithms on toolchain c05ee43175e02d208faed1fcc0f436c56e48bba6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ycatbink0t/substring_algorithms
[INFO] finished tweaking git repo https://github.com/ycatbink0t/substring_algorithms
[INFO] tweaked toml for git repo https://github.com/ycatbink0t/substring_algorithms written to /workspace/builds/worker-50/source/Cargo.toml
[INFO] crate git repo https://github.com/ycatbink0t/substring_algorithms already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "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-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1037a4850bcc4718519d76104827cb7f6a21c3fce249731dfe7cd6865d75c98d
[INFO] running `Command { std: "docker" "start" "-a" "1037a4850bcc4718519d76104827cb7f6a21c3fce249731dfe7cd6865d75c98d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1037a4850bcc4718519d76104827cb7f6a21c3fce249731dfe7cd6865d75c98d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1037a4850bcc4718519d76104827cb7f6a21c3fce249731dfe7cd6865d75c98d", kill_on_drop: false }`
[INFO] [stdout] 1037a4850bcc4718519d76104827cb7f6a21c3fce249731dfe7cd6865d75c98d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97d46ff693cbe7f0e48c40f764aba23b8abdb830272effdf0d888de868b3ad24
[INFO] running `Command { std: "docker" "start" "-a" "97d46ff693cbe7f0e48c40f764aba23b8abdb830272effdf0d888de868b3ad24", kill_on_drop: false }`
[INFO] [stderr] Blocking waiting for file lock on package cache
[INFO] [stderr] Compiling libc v0.2.71
[INFO] [stderr] Compiling getrandom v0.1.14
[INFO] [stderr] Checking cfg-if v0.1.10
[INFO] [stderr] Checking ppv-lite86 v0.2.8
[INFO] [stderr] Checking rand_core v0.5.1
[INFO] [stderr] Checking rand_chacha v0.2.2
[INFO] [stderr] Checking rand v0.7.3
[INFO] [stderr] Checking substring_algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout] --> src/automata.rs:2:5
[INFO] [stdout] |
[INFO] [stdout] 2 | use std::ops::Index;
[INFO] [stdout] | ^^^^^^^^^^^^^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout] --> src/horspool.rs:1:5
[INFO] [stdout] |
[INFO] [stdout] 1 | use std::ops::Index;
[INFO] [stdout] | ^^^^^^^^^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout] --> src/two_way_alg.rs:143:22
[INFO] [stdout] |
[INFO] [stdout] 143 | j += (i - ell);
[INFO] [stdout] | ^ ^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout] |
[INFO] [stdout] 143 - j += (i - ell);
[INFO] [stdout] 143 + j += i - ell;
[INFO] [stdout] |
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout] --> src/lib.rs:4:5
[INFO] [stdout] |
[INFO] [stdout] 4 | use std::collections::HashSet;
[INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unused import: `BufReader`
[INFO] [stdout] --> src/lib.rs:6:15
[INFO] [stdout] |
[INFO] [stdout] 6 | use std::io::{BufReader, Read, BufRead};
[INFO] [stdout] | ^^^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] error: lifetime parameter `'a` never used
[INFO] [stdout] --> src/horspool.rs:44:15
[INFO] [stdout] |
[INFO] [stdout] 44 | fn preprocess<'a>(pattern: &str, arr: &mut [u8]) {
[INFO] [stdout] | -^^- help: elide the unused lifetime
[INFO] [stdout] |
[INFO] [stdout] = note: `#[deny(unused_lifetimes)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout] --> src/automata.rs:2:5
[INFO] [stdout] |
[INFO] [stdout] 2 | use std::ops::Index;
[INFO] [stdout] | ^^^^^^^^^^^^^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout] --> src/horspool.rs:1:5
[INFO] [stdout] |
[INFO] [stdout] 1 | use std::ops::Index;
[INFO] [stdout] | ^^^^^^^^^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout] --> src/two_way_alg.rs:143:22
[INFO] [stdout] |
[INFO] [stdout] 143 | j += (i - ell);
[INFO] [stdout] | ^ ^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout] |
[INFO] [stdout] 143 - j += (i - ell);
[INFO] [stdout] 143 + j += i - ell;
[INFO] [stdout] |
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout] --> src/lib.rs:4:5
[INFO] [stdout] |
[INFO] [stdout] 4 | use std::collections::HashSet;
[INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unused import: `BufReader`
[INFO] [stdout] --> src/lib.rs:6:15
[INFO] [stdout] |
[INFO] [stdout] 6 | use std::io::{BufReader, Read, BufRead};
[INFO] [stdout] | ^^^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] error: lifetime parameter `'a` never used
[INFO] [stdout] --> src/horspool.rs:44:15
[INFO] [stdout] |
[INFO] [stdout] 44 | fn preprocess<'a>(pattern: &str, arr: &mut [u8]) {
[INFO] [stdout] | -^^- help: elide the unused lifetime
[INFO] [stdout] |
[INFO] [stdout] = note: `#[deny(unused_lifetimes)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout] --> src/lib.rs:6:32
[INFO] [stdout] |
[INFO] [stdout] 6 | use std::io::{BufReader, Read, BufRead};
[INFO] [stdout] | ^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unused variable: `skipped`
[INFO] [stdout] --> src/horspool.rs:21:17
[INFO] [stdout] |
[INFO] [stdout] 21 | let skipped = Some(c);
[INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_skipped`
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unused variable: `skipped`
[INFO] [stdout] --> src/horspool.rs:23:21
[INFO] [stdout] |
[INFO] [stdout] 23 | let skipped = chars_iter.nth(to_skip - 2);
[INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_skipped`
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout] --> src/two_way_alg.rs:78:9
[INFO] [stdout] |
[INFO] [stdout] 78 | let mut ell;
[INFO] [stdout] | ----^^^
[INFO] [stdout] | |
[INFO] [stdout] | help: remove this `mut`
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout] --> src/lib.rs:26:5
[INFO] [stdout] |
[INFO] [stdout] 26 | find_in.read_to_string(&mut text);
[INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout] --> src/lib.rs:27:5
[INFO] [stdout] |
[INFO] [stdout] 27 | strings.read_to_string(&mut patterns);
[INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] |
[INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout] --> src/lib.rs:6:32
[INFO] [stdout] |
[INFO] [stdout] 6 | use std::io::{BufReader, Read, BufRead};
[INFO] [stdout] | ^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unused variable: `skipped`
[INFO] [stdout] --> src/horspool.rs:21:17
[INFO] [stdout] |
[INFO] [stdout] 21 | let skipped = Some(c);
[INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_skipped`
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unused variable: `skipped`
[INFO] [stdout] --> src/horspool.rs:23:21
[INFO] [stdout] |
[INFO] [stdout] 23 | let skipped = chars_iter.nth(to_skip - 2);
[INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_skipped`
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] error: aborting due to previous error; 11 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout] --> src/two_way_alg.rs:78:9
[INFO] [stdout] |
[INFO] [stdout] 78 | let mut ell;
[INFO] [stdout] | ----^^^
[INFO] [stdout] | |
[INFO] [stdout] | help: remove this `mut`
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stderr] error: could not compile `substring_algorithms` due to 2 previous errors; 11 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout] --> src/lib.rs:26:5
[INFO] [stdout] |
[INFO] [stdout] 26 | find_in.read_to_string(&mut text);
[INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout] --> src/lib.rs:27:5
[INFO] [stdout] |
[INFO] [stdout] 27 | strings.read_to_string(&mut patterns);
[INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] |
[INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] error: aborting due to previous error; 11 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "97d46ff693cbe7f0e48c40f764aba23b8abdb830272effdf0d888de868b3ad24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97d46ff693cbe7f0e48c40f764aba23b8abdb830272effdf0d888de868b3ad24", kill_on_drop: false }`
[INFO] [stdout] 97d46ff693cbe7f0e48c40f764aba23b8abdb830272effdf0d888de868b3ad24