[INFO] cloning repository https://github.com/wilkmaia/linear-systems-solver [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wilkmaia/linear-systems-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilkmaia%2Flinear-systems-solver", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilkmaia%2Flinear-systems-solver'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] bcabc3789167f22c1f531334aa3e0c2bcbaed16c [INFO] checking wilkmaia/linear-systems-solver against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilkmaia%2Flinear-systems-solver" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/wilkmaia/linear-systems-solver on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/wilkmaia/linear-systems-solver [INFO] finished tweaking git repo https://github.com/wilkmaia/linear-systems-solver [INFO] tweaked toml for git repo https://github.com/wilkmaia/linear-systems-solver written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/wilkmaia/linear-systems-solver already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] error: the lock file /workspace/builds/worker-7/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag. [INFO] the lockfile is outdated, regenerating it [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0fd054d01ef549d6ce9bbdde814f53468e3004de397290bbe115f4bbcaec704f [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "0fd054d01ef549d6ce9bbdde814f53468e3004de397290bbe115f4bbcaec704f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0fd054d01ef549d6ce9bbdde814f53468e3004de397290bbe115f4bbcaec704f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0fd054d01ef549d6ce9bbdde814f53468e3004de397290bbe115f4bbcaec704f", kill_on_drop: false }` [INFO] [stdout] 0fd054d01ef549d6ce9bbdde814f53468e3004de397290bbe115f4bbcaec704f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 2bbe9fb66835b15ea77c4176ef0d5ae89330dd0a44a22c68a2ad8a2f3a41d607 [INFO] running `Command { std: "docker" "start" "-a" "2bbe9fb66835b15ea77c4176ef0d5ae89330dd0a44a22c68a2ad8a2f3a41d607", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.79 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking gauss v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around function argument [INFO] [stdout] --> src/main.rs:362:49 [INFO] [stdout] | [INFO] [stdout] 362 | write_to_output_file( x, r, dif, z, n, method, ( ( 10f64 / er ).log10() as usize ) ); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around function argument [INFO] [stdout] --> src/main.rs:362:49 [INFO] [stdout] | [INFO] [stdout] 362 | write_to_output_file( x, r, dif, z, n, method, ( ( 10f64 / er ).log10() as usize ) ); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:92:28 [INFO] [stdout] | [INFO] [stdout] 92 | fn ajuste_de_matrizes<'a>( mut a: &'a mut Vec>, mut b: &'a mut Vec ) { [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:92:58 [INFO] [stdout] | [INFO] [stdout] 92 | fn ajuste_de_matrizes<'a>( mut a: &'a mut Vec>, mut b: &'a mut Vec ) { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:138:25 [INFO] [stdout] | [INFO] [stdout] 138 | fn metodo_de_gauss<'a>( mut a: &'a mut Vec>, mut b: &'a mut Vec, mut x: &'a mut Vec ) { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:138:55 [INFO] [stdout] | [INFO] [stdout] 138 | fn metodo_de_gauss<'a>( mut a: &'a mut Vec>, mut b: &'a mut Vec, mut x: &'a mut Vec ) { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:138:80 [INFO] [stdout] | [INFO] [stdout] 138 | fn metodo_de_gauss<'a>( mut a: &'a mut Vec>, mut b: &'a mut Vec, mut x: &'a mut Vec ) { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:197:67 [INFO] [stdout] | [INFO] [stdout] 197 | fn metodos_iterativos<'a>( a: &'a Vec>, b: &'a Vec, mut x: &'a mut Vec, mut dif: &'a mut Vec, mut z: &'a mut u32,... [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:197:92 [INFO] [stdout] | [INFO] [stdout] 197 | fn metodos_iterativos<'a>( a: &'a Vec>, b: &'a Vec, mut x: &'a mut Vec, mut dif: &'a mut Vec, mut z: &'a mut u32,... [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:197:119 [INFO] [stdout] | [INFO] [stdout] 197 | ... mut x: &'a mut Vec, mut dif: &'a mut Vec, mut z: &'a mut u32, er: f64, method: u8 ) { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:92:28 [INFO] [stdout] | [INFO] [stdout] 92 | fn ajuste_de_matrizes<'a>( mut a: &'a mut Vec>, mut b: &'a mut Vec ) { [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:92:58 [INFO] [stdout] | [INFO] [stdout] 92 | fn ajuste_de_matrizes<'a>( mut a: &'a mut Vec>, mut b: &'a mut Vec ) { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:138:25 [INFO] [stdout] | [INFO] [stdout] 138 | fn metodo_de_gauss<'a>( mut a: &'a mut Vec>, mut b: &'a mut Vec, mut x: &'a mut Vec ) { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:138:55 [INFO] [stdout] | [INFO] [stdout] 138 | fn metodo_de_gauss<'a>( mut a: &'a mut Vec>, mut b: &'a mut Vec, mut x: &'a mut Vec ) { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:138:80 [INFO] [stdout] | [INFO] [stdout] 138 | fn metodo_de_gauss<'a>( mut a: &'a mut Vec>, mut b: &'a mut Vec, mut x: &'a mut Vec ) { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:197:67 [INFO] [stdout] | [INFO] [stdout] 197 | fn metodos_iterativos<'a>( a: &'a Vec>, b: &'a Vec, mut x: &'a mut Vec, mut dif: &'a mut Vec, mut z: &'a mut u32,... [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:197:92 [INFO] [stdout] | [INFO] [stdout] 197 | fn metodos_iterativos<'a>( a: &'a Vec>, b: &'a Vec, mut x: &'a mut Vec, mut dif: &'a mut Vec, mut z: &'a mut u32,... [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:197:119 [INFO] [stdout] | [INFO] [stdout] 197 | ... mut x: &'a mut Vec, mut dif: &'a mut Vec, mut z: &'a mut u32, er: f64, method: u8 ) { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.09s [INFO] running `Command { std: "docker" "inspect" "2bbe9fb66835b15ea77c4176ef0d5ae89330dd0a44a22c68a2ad8a2f3a41d607", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2bbe9fb66835b15ea77c4176ef0d5ae89330dd0a44a22c68a2ad8a2f3a41d607", kill_on_drop: false }` [INFO] [stdout] 2bbe9fb66835b15ea77c4176ef0d5ae89330dd0a44a22c68a2ad8a2f3a41d607