[INFO] updating cached repository mrjones/erasure-codes
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mrjones/erasure-codes
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mrjones/erasure-codes" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/mrjones/erasure-codes"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/mrjones/erasure-codes'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mrjones/erasure-codes" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/mrjones/erasure-codes"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/mrjones/erasure-codes'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dbaecfbcf0bb2d52943b377f9911b3e27cf58f46
[INFO] sha for GitHub repo mrjones/erasure-codes: dbaecfbcf0bb2d52943b377f9911b3e27cf58f46
[INFO] validating manifest of mrjones/erasure-codes on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mrjones/erasure-codes on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mrjones/erasure-codes
[INFO] finished frobbing mrjones/erasure-codes
[INFO] frobbed toml for mrjones/erasure-codes written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/mrjones/erasure-codes/Cargo.toml
[INFO] started frobbing mrjones/erasure-codes
[INFO] finished frobbing mrjones/erasure-codes
[INFO] frobbed toml for mrjones/erasure-codes written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/mrjones/erasure-codes/Cargo.toml
[INFO] crate mrjones/erasure-codes already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking mrjones/erasure-codes against try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-3/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/mrjones/erasure-codes:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] bac9ca07cd75bef6276458322a0e0a4cb7b23dc236fd308f90a704ba6c81c97f
[INFO] running `"docker" "start" "-a" "bac9ca07cd75bef6276458322a0e0a4cb7b23dc236fd308f90a704ba6c81c97f"`
[INFO] [stderr]     Checking num-bigint v0.1.35
[INFO] [stderr]     Checking num-rational v0.1.35
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stderr]     Checking la v0.2.0
[INFO] [stderr]     Checking erasure-codes v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]    --> src/main.rs:195:13
[INFO] [stderr]     |
[INFO] [stderr] 195 |     let mut rng = rand::thread_rng();
[INFO] [stderr]     |             ^^^ help: consider prefixing with an underscore: `_rng`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k`
[INFO] [stderr]    --> src/main.rs:331:9
[INFO] [stderr]     |
[INFO] [stderr] 331 |     let k = spec.data_chunks;
[INFO] [stderr]     |         ^ help: consider prefixing with an underscore: `_k`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/main.rs:332:9
[INFO] [stderr]     |
[INFO] [stderr] 332 |     let n = spec.data_chunks + spec.local_parities + spec.global_parities;
[INFO] [stderr]     |         ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `spec_622`
[INFO] [stderr]    --> src/main.rs:404:9
[INFO] [stderr]     |
[INFO] [stderr] 404 |     let spec_622 = CodeSpec{
[INFO] [stderr]     |         ^^^^^^^^ help: consider prefixing with an underscore: `_spec_622`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:195:9
[INFO] [stderr]     |
[INFO] [stderr] 195 |     let mut rng = rand::thread_rng();
[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: field is never used: `rows`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     rows: i32,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cols`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     cols: i32,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `parities_per_row`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     parities_per_row: i32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `parities_per_col`
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     parities_per_col: i32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Data`
[INFO] [stderr]   --> src/main.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Data(DataChunkIndex),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LocalParity`
[INFO] [stderr]   --> src/main.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     LocalParity(LocalParityIndex),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GlobalParity`
[INFO] [stderr]   --> src/main.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     GlobalParity(GlobalParityIndex),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `global_parities`
[INFO] [stderr]   --> src/main.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     global_parities: Vec<Vec<u8>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `v_dot`
[INFO] [stderr]    --> src/main.rs:103:1
[INFO] [stderr]     |
[INFO] [stderr] 103 | fn v_dot(a: &Vec<u8>, b: &Vec<u8>) -> u64 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `v_add`
[INFO] [stderr]    --> src/main.rs:114:1
[INFO] [stderr]     |
[INFO] [stderr] 114 | fn v_add(a: &Vec<u8>, b: &Vec<u8>) -> Vec<u8> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `v_add_c`
[INFO] [stderr]    --> src/main.rs:118:1
[INFO] [stderr]     |
[INFO] [stderr] 118 | fn v_add_c(a: &Vec<u8>, c: u8) -> Vec<u8> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `v_mult`
[INFO] [stderr]    --> src/main.rs:122:1
[INFO] [stderr]     |
[INFO] [stderr] 122 | fn v_mult(a: &Vec<u8>, b: &Vec<u8>) -> Vec<u8>{
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `v_mult_c`
[INFO] [stderr]    --> src/main.rs:126:1
[INFO] [stderr]     |
[INFO] [stderr] 126 | fn v_mult_c(a: &Vec<u8>, c: u8) -> Vec<u8>{
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `to_matrix`
[INFO] [stderr]    --> src/main.rs:130:1
[INFO] [stderr]     |
[INFO] [stderr] 130 | fn to_matrix(a: &Vec<&Vec<u8>>) -> la::Matrix<f32> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rank`
[INFO] [stderr]    --> src/main.rs:145:1
[INFO] [stderr]     |
[INFO] [stderr] 145 | fn rank(svd: &la::SVD<f32>) -> usize {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `one_null_basis`
[INFO] [stderr]    --> src/main.rs:157:1
[INFO] [stderr]     |
[INFO] [stderr] 157 | fn one_null_basis(svd: &la::SVD<f32>) -> Vec<u8> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `one_null_basis_wrapper`
[INFO] [stderr]    --> src/main.rs:170:1
[INFO] [stderr]     |
[INFO] [stderr] 170 | fn one_null_basis_wrapper(a: &Vec<&Vec<u8>>) -> Vec<u8> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rank_wrapper`
[INFO] [stderr]    --> src/main.rs:179:1
[INFO] [stderr]     |
[INFO] [stderr] 179 | fn rank_wrapper(a: &Vec<&Vec<u8>>) -> usize {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `generate_g`
[INFO] [stderr]    --> src/main.rs:189:1
[INFO] [stderr]     |
[INFO] [stderr] 189 | fn generate_g(spec: &GPCSpec) -> Vec<Vec<u8>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `generate_gzero`
[INFO] [stderr]    --> src/main.rs:296:1
[INFO] [stderr]     |
[INFO] [stderr] 296 | fn generate_gzero(spec: &GPCSpec) -> Vec<Vec<bool>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `global_coefficients`
[INFO] [stderr]    --> src/main.rs:329:1
[INFO] [stderr]     |
[INFO] [stderr] 329 | fn global_coefficients(spec: &CodeSpec) -> Vec<Vec<u8>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `local_parity_coverage`
[INFO] [stderr]    --> src/main.rs:337:1
[INFO] [stderr]     |
[INFO] [stderr] 337 | fn local_parity_coverage(spec: &CodeSpec) -> CodeResult<std::collections::HashMap<LocalParityIndex, Vec<DataChunkIndex>>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_recoverable`
[INFO] [stderr]    --> src/main.rs:361:1
[INFO] [stderr]     |
[INFO] [stderr] 361 | fn is_recoverable(spec: &CodeSpec, erasures: &Vec<ChunkPosition>) -> bool {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]    --> src/main.rs:195:13
[INFO] [stderr]     |
[INFO] [stderr] 195 |     let mut rng = rand::thread_rng();
[INFO] [stderr]     |             ^^^ help: consider prefixing with an underscore: `_rng`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k`
[INFO] [stderr]    --> src/main.rs:331:9
[INFO] [stderr]     |
[INFO] [stderr] 331 |     let k = spec.data_chunks;
[INFO] [stderr]     |         ^ help: consider prefixing with an underscore: `_k`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]    --> src/main.rs:332:9
[INFO] [stderr]     |
[INFO] [stderr] 332 |     let n = spec.data_chunks + spec.local_parities + spec.global_parities;
[INFO] [stderr]     |         ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `spec_622`
[INFO] [stderr]    --> src/main.rs:404:9
[INFO] [stderr]     |
[INFO] [stderr] 404 |     let spec_622 = CodeSpec{
[INFO] [stderr]     |         ^^^^^^^^ help: consider prefixing with an underscore: `_spec_622`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:195:9
[INFO] [stderr]     |
[INFO] [stderr] 195 |     let mut rng = rand::thread_rng();
[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: field is never used: `global_parities`
[INFO] [stderr]   --> src/main.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     global_parities: Vec<Vec<u8>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `v_add_c`
[INFO] [stderr]    --> src/main.rs:118:1
[INFO] [stderr]     |
[INFO] [stderr] 118 | fn v_add_c(a: &Vec<u8>, c: u8) -> Vec<u8> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `v_mult`
[INFO] [stderr]    --> src/main.rs:122:1
[INFO] [stderr]     |
[INFO] [stderr] 122 | fn v_mult(a: &Vec<u8>, b: &Vec<u8>) -> Vec<u8>{
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `global_coefficients`
[INFO] [stderr]    --> src/main.rs:329:1
[INFO] [stderr]     |
[INFO] [stderr] 329 | fn global_coefficients(spec: &CodeSpec) -> Vec<Vec<u8>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_gpc_gzero_2x2_2_1`
[INFO] [stderr]    --> src/main.rs:597:5
[INFO] [stderr]     |
[INFO] [stderr] 597 |     fn test_gpc_gzero_2x2_2_1() {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_gpc_gzero_2x2_1_2`
[INFO] [stderr]    --> src/main.rs:621:5
[INFO] [stderr]     |
[INFO] [stderr] 621 |     fn test_gpc_gzero_2x2_1_2() {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.55s
[INFO] running `"docker" "inspect" "bac9ca07cd75bef6276458322a0e0a4cb7b23dc236fd308f90a704ba6c81c97f"`
[INFO] running `"docker" "rm" "-f" "bac9ca07cd75bef6276458322a0e0a4cb7b23dc236fd308f90a704ba6c81c97f"`
[INFO] [stdout] bac9ca07cd75bef6276458322a0e0a4cb7b23dc236fd308f90a704ba6c81c97f