[INFO] cloning repository https://github.com/RaasAhsan/regex [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RaasAhsan/regex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRaasAhsan%2Fregex", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRaasAhsan%2Fregex'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 923ef1ada7f652c958a9091e308962edcc2637b7 [INFO] checking RaasAhsan/regex/923ef1ada7f652c958a9091e308962edcc2637b7 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRaasAhsan%2Fregex" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/RaasAhsan/regex on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/RaasAhsan/regex [INFO] finished tweaking git repo https://github.com/RaasAhsan/regex [INFO] tweaked toml for git repo https://github.com/RaasAhsan/regex written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/RaasAhsan/regex 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3032900fb05cd99e29acf38abc5a4ba0f993d30e9c46a8dd8049d43b012bb07c [INFO] running `Command { std: "docker" "start" "-a" "3032900fb05cd99e29acf38abc5a4ba0f993d30e9c46a8dd8049d43b012bb07c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3032900fb05cd99e29acf38abc5a4ba0f993d30e9c46a8dd8049d43b012bb07c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3032900fb05cd99e29acf38abc5a4ba0f993d30e9c46a8dd8049d43b012bb07c", kill_on_drop: false }` [INFO] [stdout] 3032900fb05cd99e29acf38abc5a4ba0f993d30e9c46a8dd8049d43b012bb07c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c78c187471e2b8cd7727b0d31b7e1b3a4e24634dbeb3751e8cee3f8ff12943a7 [INFO] running `Command { std: "docker" "start" "-a" "c78c187471e2b8cd7727b0d31b7e1b3a4e24634dbeb3751e8cee3f8ff12943a7", kill_on_drop: false }` [INFO] [stderr] Checking regex v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/parser.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | let mut input = input; [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: type alias `Result` is never used [INFO] [stdout] --> src/parser.rs:3:6 [INFO] [stdout] | [INFO] [stdout] 3 | type Result<'a, A> = std::result::Result<(A, &'a str), ParseError>; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `ParseError` is never used [INFO] [stdout] --> src/parser.rs:6:6 [INFO] [stdout] | [INFO] [stdout] 6 | enum ParseError { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_regex` is never used [INFO] [stdout] --> src/parser.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | pub fn parse_regex(input: &str) -> Option { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_expression` is never used [INFO] [stdout] --> src/parser.rs:19:4 [INFO] [stdout] | [INFO] [stdout] 19 | fn parse_expression(input: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_alternation` is never used [INFO] [stdout] --> src/parser.rs:23:4 [INFO] [stdout] | [INFO] [stdout] 23 | fn parse_alternation(input: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_concatenation` is never used [INFO] [stdout] --> src/parser.rs:35:4 [INFO] [stdout] | [INFO] [stdout] 35 | fn parse_concatenation(input: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_repetition` is never used [INFO] [stdout] --> src/parser.rs:47:4 [INFO] [stdout] | [INFO] [stdout] 47 | fn parse_repetition(input: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_primary` is never used [INFO] [stdout] --> src/parser.rs:56:4 [INFO] [stdout] | [INFO] [stdout] 56 | fn parse_primary(input: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_group` is never used [INFO] [stdout] --> src/parser.rs:60:4 [INFO] [stdout] | [INFO] [stdout] 60 | fn parse_group(input: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_match` is never used [INFO] [stdout] --> src/parser.rs:67:4 [INFO] [stdout] | [INFO] [stdout] 67 | fn parse_match(input: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `expect_character` is never used [INFO] [stdout] --> src/parser.rs:82:4 [INFO] [stdout] | [INFO] [stdout] 82 | fn expect_character(input: &str, c: char) -> Result<()> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_quantifier` is never used [INFO] [stdout] --> src/parser.rs:95:4 [INFO] [stdout] | [INFO] [stdout] 95 | fn parse_quantifier(input: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/parser.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | let mut input = input; [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s [INFO] running `Command { std: "docker" "inspect" "c78c187471e2b8cd7727b0d31b7e1b3a4e24634dbeb3751e8cee3f8ff12943a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c78c187471e2b8cd7727b0d31b7e1b3a4e24634dbeb3751e8cee3f8ff12943a7", kill_on_drop: false }` [INFO] [stdout] c78c187471e2b8cd7727b0d31b7e1b3a4e24634dbeb3751e8cee3f8ff12943a7