[INFO] cloning repository https://github.com/ctrlenalt/Grape-EC
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ctrlenalt/Grape-EC" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctrlenalt%2FGrape-EC", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctrlenalt%2FGrape-EC'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6bba49d54bf1dd0ce48acd58dc2e048174c2064c
[INFO] checking ctrlenalt/Grape-EC against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctrlenalt%2FGrape-EC" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ctrlenalt/Grape-EC
[INFO] finished tweaking git repo https://github.com/ctrlenalt/Grape-EC
[INFO] tweaked toml for git repo https://github.com/ctrlenalt/Grape-EC written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ctrlenalt/Grape-EC on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ctrlenalt/Grape-EC 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 53795ff0fba0de3d45f2e376e486d3c0bd13816233e7f538cd36be1e593273db
[INFO] running `Command { std: "docker" "start" "-a" "53795ff0fba0de3d45f2e376e486d3c0bd13816233e7f538cd36be1e593273db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53795ff0fba0de3d45f2e376e486d3c0bd13816233e7f538cd36be1e593273db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53795ff0fba0de3d45f2e376e486d3c0bd13816233e7f538cd36be1e593273db", kill_on_drop: false }`
[INFO] [stdout] 53795ff0fba0de3d45f2e376e486d3c0bd13816233e7f538cd36be1e593273db
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a14a30f0059746d9759f9807e63128252fdd7f2a782d9ba78314020383e2103
[INFO] running `Command { std: "docker" "start" "-a" "7a14a30f0059746d9759f9807e63128252fdd7f2a782d9ba78314020383e2103", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking either v1.11.0
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking xorslp_ec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `csv::Reader`
[INFO] [stdout]  --> src/rsv_bitmatrix.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use csv::Reader;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/rsv_bitmatrix.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]   --> src/rsv_bitmatrix.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::io::Write;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]   --> src/rsv_bitmatrix.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::path::Path;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `WriterBuilder`
[INFO] [stdout]   --> src/rsv_bitmatrix.rs:12:26
[INFO] [stdout]    |
[INFO] [stdout] 12 | use csv::{ReaderBuilder, WriterBuilder};
[INFO] [stdout]    |                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]   --> src/rsv_bitmatrix.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::fs::File;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::OpenOptions`
[INFO] [stdout]   --> src/rsv_bitmatrix.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::fs::OpenOptions;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `csv::Reader`
[INFO] [stdout]  --> src/rsv_bitmatrix.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use csv::Reader;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/rsv_bitmatrix.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]   --> src/rsv_bitmatrix.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::io::Write;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]   --> src/rsv_bitmatrix.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::path::Path;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `WriterBuilder`
[INFO] [stdout]   --> src/rsv_bitmatrix.rs:12:26
[INFO] [stdout]    |
[INFO] [stdout] 12 | use csv::{ReaderBuilder, WriterBuilder};
[INFO] [stdout]    |                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]   --> src/rsv_bitmatrix.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::fs::File;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::OpenOptions`
[INFO] [stdout]   --> src/rsv_bitmatrix.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::fs::OpenOptions;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::prelude::*`
[INFO] [stdout]    --> src/vandermonde.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 |     use rand::prelude::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nr_data_block`
[INFO] [stdout]    --> src/rsv_bitmatrix.rs:163:54
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub fn matrix_to_bitmatrix_from_csv(file_path: &str, nr_data_block: usize, nr_parity_block: usize) -> BitMatrix {
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_nr_data_block`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nr_parity_block`
[INFO] [stdout]    --> src/rsv_bitmatrix.rs:163:76
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub fn matrix_to_bitmatrix_from_csv(file_path: &str, nr_data_block: usize, nr_parity_block: usize) -> BitMatrix {
[INFO] [stdout]     |                                                                            ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_nr_parity_block`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nr_data_block`
[INFO] [stdout]    --> src/rsv_bitmatrix.rs:163:54
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub fn matrix_to_bitmatrix_from_csv(file_path: &str, nr_data_block: usize, nr_parity_block: usize) -> BitMatrix {
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_nr_data_block`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nr_parity_block`
[INFO] [stdout]    --> src/rsv_bitmatrix.rs:163:76
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub fn matrix_to_bitmatrix_from_csv(file_path: &str, nr_data_block: usize, nr_parity_block: usize) -> BitMatrix {
[INFO] [stdout]     |                                                                            ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_nr_parity_block`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:168:9
[INFO] [stdout]     |
[INFO] [stdout] 168 |     let mut bitmatrix_enc=rsv_bitmatrix::matrix_to_bitmatrix_from_csv(file_path,nr_data_block*8, nr_parity_block*8);
[INFO] [stdout]     |         ----^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `decoded`
[INFO] [stdout]    --> src/main.rs:349:13
[INFO] [stdout]     |
[INFO] [stdout] 349 |         let decoded = for_decode.split(nr_parity_block);
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_decoded`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:168:9
[INFO] [stdout]     |
[INFO] [stdout] 168 |     let mut bitmatrix_enc=rsv_bitmatrix::matrix_to_bitmatrix_from_csv(file_path,nr_data_block*8, nr_parity_block*8);
[INFO] [stdout]     |         ----^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `decoded`
[INFO] [stdout]    --> src/main.rs:349:13
[INFO] [stdout]     |
[INFO] [stdout] 349 |         let decoded = for_decode.split(nr_parity_block);
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_decoded`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.25s
[INFO] running `Command { std: "docker" "inspect" "7a14a30f0059746d9759f9807e63128252fdd7f2a782d9ba78314020383e2103", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a14a30f0059746d9759f9807e63128252fdd7f2a782d9ba78314020383e2103", kill_on_drop: false }`
[INFO] [stdout] 7a14a30f0059746d9759f9807e63128252fdd7f2a782d9ba78314020383e2103
