[INFO] cloning repository https://github.com/udayj/grepr [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/udayj/grepr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fudayj%2Fgrepr", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fudayj%2Fgrepr'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ef5411a4398263c975e5abc3b63ef0f31d01dc00 [INFO] checking udayj/grepr against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fudayj%2Fgrepr" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/udayj/grepr on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/udayj/grepr [INFO] finished tweaking git repo https://github.com/udayj/grepr [INFO] tweaked toml for git repo https://github.com/udayj/grepr written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/udayj/grepr 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded anstyle v0.3.5 [INFO] [stderr] Downloaded assert_cmd v2.0.10 [INFO] [stderr] Downloaded predicates v3.0.1 [INFO] [stderr] Downloaded serde v1.0.158 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3dd94baf0eac87f6ae458e16a47e756e95d6632025eb0d1ddcbc6d6456b0ffdc [INFO] running `Command { std: "docker" "start" "-a" "3dd94baf0eac87f6ae458e16a47e756e95d6632025eb0d1ddcbc6d6456b0ffdc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3dd94baf0eac87f6ae458e16a47e756e95d6632025eb0d1ddcbc6d6456b0ffdc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3dd94baf0eac87f6ae458e16a47e756e95d6632025eb0d1ddcbc6d6456b0ffdc", kill_on_drop: false }` [INFO] [stdout] 3dd94baf0eac87f6ae458e16a47e756e95d6632025eb0d1ddcbc6d6456b0ffdc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 12a19e1b3ee23fc0fbb3f10e789abc99dff7a5f1d68a75d0a752c3de393c8113 [INFO] running `Command { std: "docker" "start" "-a" "12a19e1b3ee23fc0fbb3f10e789abc99dff7a5f1d68a75d0a752c3de393c8113", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.140 [INFO] [stderr] Checking either v1.8.1 [INFO] [stderr] Checking regex-syntax v0.6.28 [INFO] [stderr] Checking unicode-width v0.1.10 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Compiling sys-info v0.9.1 [INFO] [stderr] Checking walkdir v2.3.3 [INFO] [stderr] Checking anstyle v0.3.5 [INFO] [stderr] Checking aho-corasick v0.7.20 [INFO] [stderr] Checking bstr v1.4.0 [INFO] [stderr] Checking float-cmp v0.9.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking getrandom v0.2.8 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking predicates v3.0.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking assert_cmd v2.0.10 [INFO] [stderr] Checking regex v1.7.1 [INFO] [stderr] Checking predicates v2.1.5 [INFO] [stderr] Checking grepr v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `self` [INFO] [stdout] --> src/lib.rs:5:10 [INFO] [stdout] | [INFO] [stdout] 5 | fs::{self, File}, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `DirEntry` [INFO] [stdout] --> src/lib.rs:8:24 [INFO] [stdout] | [INFO] [stdout] 8 | use walkdir::{WalkDir, DirEntry}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/lib.rs:117:20 [INFO] [stdout] | [INFO] [stdout] 117 | if (config.count) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 117 - if (config.count) { [INFO] [stdout] 117 + if config.count { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `counter` is never read [INFO] [stdout] --> src/lib.rs:99:13 [INFO] [stdout] | [INFO] [stdout] 99 | let mut counter = 0; [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: unused variable: `exact_filename` [INFO] [stdout] --> src/lib.rs:112:21 [INFO] [stdout] | [INFO] [stdout] 112 | let exact_filename = component.last().unwrap(); [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_exact_filename` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:133:5 [INFO] [stdout] | [INFO] [stdout] 133 | mut file: T, [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: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self` [INFO] [stdout] --> src/lib.rs:5:10 [INFO] [stdout] | [INFO] [stdout] 5 | fs::{self, File}, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `DirEntry` [INFO] [stdout] --> src/lib.rs:8:24 [INFO] [stdout] | [INFO] [stdout] 8 | use walkdir::{WalkDir, DirEntry}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/lib.rs:117:20 [INFO] [stdout] | [INFO] [stdout] 117 | if (config.count) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 117 - if (config.count) { [INFO] [stdout] 117 + if config.count { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `RegexBuilder`, `Regex` [INFO] [stdout] --> src/lib.rs:191:17 [INFO] [stdout] | [INFO] [stdout] 191 | use regex::{Regex, RegexBuilder}; [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Cursor` [INFO] [stdout] --> src/lib.rs:192:9 [INFO] [stdout] | [INFO] [stdout] 192 | use std::io::Cursor; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `counter` is never read [INFO] [stdout] --> src/lib.rs:99:13 [INFO] [stdout] | [INFO] [stdout] 99 | let mut counter = 0; [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: unused variable: `exact_filename` [INFO] [stdout] --> src/lib.rs:112:21 [INFO] [stdout] | [INFO] [stdout] 112 | let exact_filename = component.last().unwrap(); [INFO] [stdout] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_exact_filename` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:133:5 [INFO] [stdout] | [INFO] [stdout] 133 | mut file: T, [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: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.31s [INFO] running `Command { std: "docker" "inspect" "12a19e1b3ee23fc0fbb3f10e789abc99dff7a5f1d68a75d0a752c3de393c8113", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "12a19e1b3ee23fc0fbb3f10e789abc99dff7a5f1d68a75d0a752c3de393c8113", kill_on_drop: false }` [INFO] [stdout] 12a19e1b3ee23fc0fbb3f10e789abc99dff7a5f1d68a75d0a752c3de393c8113