[INFO] cloning repository https://github.com/ahaggi/rust_kattis_counting_palindromes [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ahaggi/rust_kattis_counting_palindromes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahaggi%2Frust_kattis_counting_palindromes", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahaggi%2Frust_kattis_counting_palindromes'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f286b596a36953206e5c2fee805b952e04c9e74b [INFO] testing ahaggi/rust_kattis_counting_palindromes against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fahaggi%2Frust_kattis_counting_palindromes" "/workspace/builds/worker-68/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-68/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ahaggi/rust_kattis_counting_palindromes on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ahaggi/rust_kattis_counting_palindromes [INFO] finished tweaking git repo https://github.com/ahaggi/rust_kattis_counting_palindromes [INFO] tweaked toml for git repo https://github.com/ahaggi/rust_kattis_counting_palindromes written to /workspace/builds/worker-68/source/Cargo.toml [INFO] crate git repo https://github.com/ahaggi/rust_kattis_counting_palindromes already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 407e3e8a4b026e1c96fe04a98c6b828c561d3e23f74dc85d35712a29a8b40ed5 [INFO] running `Command { std: "docker" "start" "-a" "407e3e8a4b026e1c96fe04a98c6b828c561d3e23f74dc85d35712a29a8b40ed5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "407e3e8a4b026e1c96fe04a98c6b828c561d3e23f74dc85d35712a29a8b40ed5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "407e3e8a4b026e1c96fe04a98c6b828c561d3e23f74dc85d35712a29a8b40ed5", kill_on_drop: false }` [INFO] [stdout] 407e3e8a4b026e1c96fe04a98c6b828c561d3e23f74dc85d35712a29a8b40ed5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e536d2e8a8277bb56c3afacfe9885fece2b59a21ca7bd6bb0bddf5eb5e41d16d [INFO] running `Command { std: "docker" "start" "-a" "e536d2e8a8277bb56c3afacfe9885fece2b59a21ca7bd6bb0bddf5eb5e41d16d", kill_on_drop: false }` [INFO] [stderr] Compiling counting_palindromes v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `BufRead`, `BufReader` [INFO] [stdout] --> src/main.rs:76:15 [INFO] [stdout] | [INFO] [stdout] 76 | use std::io::{BufRead, BufReader, BufWriter}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let mut lvl = lvl; [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: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:87:9 [INFO] [stdout] | [INFO] [stdout] 87 | let mut file = File::create("output.txt").expect("Unable to create file"); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.59s [INFO] running `Command { std: "docker" "inspect" "e536d2e8a8277bb56c3afacfe9885fece2b59a21ca7bd6bb0bddf5eb5e41d16d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e536d2e8a8277bb56c3afacfe9885fece2b59a21ca7bd6bb0bddf5eb5e41d16d", kill_on_drop: false }` [INFO] [stdout] e536d2e8a8277bb56c3afacfe9885fece2b59a21ca7bd6bb0bddf5eb5e41d16d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7dcff3ed56debb946a267e3bdf17c71f813518093f11605ebdc3100b4ea6606f [INFO] running `Command { std: "docker" "start" "-a" "7dcff3ed56debb946a267e3bdf17c71f813518093f11605ebdc3100b4ea6606f", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling counting_palindromes v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `BufRead`, `BufReader` [INFO] [stdout] --> src/main.rs:76:15 [INFO] [stdout] | [INFO] [stdout] 76 | use std::io::{BufRead, BufReader, BufWriter}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let mut lvl = lvl; [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: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:87:9 [INFO] [stdout] | [INFO] [stdout] 87 | let mut file = File::create("output.txt").expect("Unable to create file"); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.37s [INFO] running `Command { std: "docker" "inspect" "7dcff3ed56debb946a267e3bdf17c71f813518093f11605ebdc3100b4ea6606f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7dcff3ed56debb946a267e3bdf17c71f813518093f11605ebdc3100b4ea6606f", kill_on_drop: false }` [INFO] [stdout] 7dcff3ed56debb946a267e3bdf17c71f813518093f11605ebdc3100b4ea6606f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 49c4da30716f674051384c23b71562b1fbd526fe08baa7e70225947219d30387 [INFO] running `Command { std: "docker" "start" "-a" "49c4da30716f674051384c23b71562b1fbd526fe08baa7e70225947219d30387", kill_on_drop: false }` [INFO] [stdout] [INFO] [stderr] warning: unused imports: `BufRead`, `BufReader` [INFO] [stdout] running 0 tests [INFO] [stderr] --> src/main.rs:76:15 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] 76 | use std::io::{BufRead, BufReader, BufWriter}; [INFO] [stdout] [INFO] [stderr] | ^^^^^^^ ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:28:9 [INFO] [stderr] | [INFO] [stderr] 28 | let mut lvl = lvl; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:87:9 [INFO] [stderr] | [INFO] [stderr] 87 | let mut file = File::create("output.txt").expect("Unable to create file"); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: `counting_palindromes` (bin "counting_palindromes" test) generated 3 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/counting_palindromes-3a9b8ec7e90f5573) [INFO] running `Command { std: "docker" "inspect" "49c4da30716f674051384c23b71562b1fbd526fe08baa7e70225947219d30387", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "49c4da30716f674051384c23b71562b1fbd526fe08baa7e70225947219d30387", kill_on_drop: false }` [INFO] [stdout] 49c4da30716f674051384c23b71562b1fbd526fe08baa7e70225947219d30387