[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] building snctfd/gausselim-rs against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnctfd%2Fgausselim-rs" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/snctfd/gausselim-rs on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "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-0-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 09342a043bb1e066583527592ca8f5afa921b860c7c42420a1d1a69e5a34a9ae [INFO] running `Command { std: "docker" "start" "-a" "09342a043bb1e066583527592ca8f5afa921b860c7c42420a1d1a69e5a34a9ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "09342a043bb1e066583527592ca8f5afa921b860c7c42420a1d1a69e5a34a9ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "09342a043bb1e066583527592ca8f5afa921b860c7c42420a1d1a69e5a34a9ae", kill_on_drop: false }` [INFO] [stdout] 09342a043bb1e066583527592ca8f5afa921b860c7c42420a1d1a69e5a34a9ae [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 90106318f6ab65bca181b971387a005fe7bdcae51ebd7e0859b29aac9f7da711 [INFO] running `Command { std: "docker" "start" "-a" "90106318f6ab65bca181b971387a005fe7bdcae51ebd7e0859b29aac9f7da711", kill_on_drop: false }` [INFO] [stderr] Compiling 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: function `read_matrix` is never used [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] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `swap_rows`, `mult_row`, and `add_row` are never used [INFO] [stdout] --> src/matrix.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 12 | impl Matrix { [INFO] [stdout] | ----------- associated items in this implementation [INFO] [stdout] 13 | fn new(contents: Vec, rows: usize, cols: usize) -> Matrix { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 21 | fn swap_rows(&mut self, i: usize, j: usize) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 33 | fn mult_row(&mut self, row: usize, val: f32) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 41 | fn add_row(&mut self, to: usize, from: usize) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s [INFO] running `Command { std: "docker" "inspect" "90106318f6ab65bca181b971387a005fe7bdcae51ebd7e0859b29aac9f7da711", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "90106318f6ab65bca181b971387a005fe7bdcae51ebd7e0859b29aac9f7da711", kill_on_drop: false }` [INFO] [stdout] 90106318f6ab65bca181b971387a005fe7bdcae51ebd7e0859b29aac9f7da711 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cc3cbce498d28dc3cb9cda4305c66aff3531a2976d8b097f72d27425c3f5a90a [INFO] running `Command { std: "docker" "start" "-a" "cc3cbce498d28dc3cb9cda4305c66aff3531a2976d8b097f72d27425c3f5a90a", kill_on_drop: false }` [INFO] [stderr] Compiling 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] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s [INFO] running `Command { std: "docker" "inspect" "cc3cbce498d28dc3cb9cda4305c66aff3531a2976d8b097f72d27425c3f5a90a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cc3cbce498d28dc3cb9cda4305c66aff3531a2976d8b097f72d27425c3f5a90a", kill_on_drop: false }` [INFO] [stdout] cc3cbce498d28dc3cb9cda4305c66aff3531a2976d8b097f72d27425c3f5a90a