[INFO] cloning repository https://github.com/snctfd/gausselim-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/snctfd/gausselim-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnctfd%2Fgausselim-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnctfd%2Fgausselim-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a6310d4df3cb1c73f5d422e51c052d54a5a11ef6 [INFO] checking snctfd/gausselim-rs against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnctfd%2Fgausselim-rs" "/workspace/builds/worker-100/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-100/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/snctfd/gausselim-rs on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/snctfd/gausselim-rs [INFO] finished tweaking git repo https://github.com/snctfd/gausselim-rs [INFO] tweaked toml for git repo https://github.com/snctfd/gausselim-rs written to /workspace/builds/worker-100/source/Cargo.toml [INFO] crate git repo https://github.com/snctfd/gausselim-rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "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-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 21ccae4e87dfa56772e72cc894b3e3233779d1f52fa8e32cebc72e5b9138e1c7 [INFO] running `Command { std: "docker" "start" "-a" "21ccae4e87dfa56772e72cc894b3e3233779d1f52fa8e32cebc72e5b9138e1c7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "21ccae4e87dfa56772e72cc894b3e3233779d1f52fa8e32cebc72e5b9138e1c7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "21ccae4e87dfa56772e72cc894b3e3233779d1f52fa8e32cebc72e5b9138e1c7", kill_on_drop: false }` [INFO] [stdout] 21ccae4e87dfa56772e72cc894b3e3233779d1f52fa8e32cebc72e5b9138e1c7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 951ce7ff78a192ab38b09cd5b28c504128765c07ae67769f2a9d563cbe749801 [INFO] running `Command { std: "docker" "start" "-a" "951ce7ff78a192ab38b09cd5b28c504128765c07ae67769f2a9d563cbe749801", kill_on_drop: false }` [INFO] [stderr] Checking gausselim v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::io` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::io; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/matrix.rs:34:13 [INFO] [stdout] | [INFO] [stdout] 34 | let c = self.cols; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [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/main.rs:31:13 [INFO] [stdout] | [INFO] [stdout] 31 | let mut text = String::from("4 2\n1 2.0 3 4\n5 6\n7 8"); [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 import: `std::io` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::io; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/matrix.rs:34:13 [INFO] [stdout] | [INFO] [stdout] 34 | let c = self.cols; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/matrix.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | fn new(contents: Vec, rows: usize, cols: usize) -> Matrix { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `swap_rows` [INFO] [stdout] --> src/matrix.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | fn swap_rows(&mut self, i: usize, j: usize) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `mult_row` [INFO] [stdout] --> src/matrix.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | fn mult_row(&mut self, row: usize, val: f32) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `add_row` [INFO] [stdout] --> src/matrix.rs:41:8 [INFO] [stdout] | [INFO] [stdout] 41 | fn add_row(&mut self, to: usize, from: usize) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `read_matrix` [INFO] [stdout] --> src/main.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | fn read_matrix(reader: &mut dyn Read) -> Result> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.93s [INFO] running `Command { std: "docker" "inspect" "951ce7ff78a192ab38b09cd5b28c504128765c07ae67769f2a9d563cbe749801", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "951ce7ff78a192ab38b09cd5b28c504128765c07ae67769f2a9d563cbe749801", kill_on_drop: false }` [INFO] [stdout] 951ce7ff78a192ab38b09cd5b28c504128765c07ae67769f2a9d563cbe749801