[INFO] cloning repository https://github.com/mrjones/erasure-codes [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mrjones/erasure-codes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrjones%2Ferasure-codes"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrjones%2Ferasure-codes'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] dbaecfbcf0bb2d52943b377f9911b3e27cf58f46 [INFO] testing mrjones/erasure-codes against 1.44.0 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrjones%2Ferasure-codes" "/workspace/builds/worker-6/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mrjones/erasure-codes on toolchain 1.44.0 [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/mrjones/erasure-codes [INFO] finished tweaking git repo https://github.com/mrjones/erasure-codes [INFO] tweaked toml for git repo https://github.com/mrjones/erasure-codes written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/mrjones/erasure-codes already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] b22bdd6a9fe5939d8240aeb5d73ef9706169afc73d4bce9afb25111de003066b [INFO] running `"docker" "start" "-a" "b22bdd6a9fe5939d8240aeb5d73ef9706169afc73d4bce9afb25111de003066b"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling libc v0.2.18 [INFO] [stderr] Compiling num-iter v0.1.32 [INFO] [stderr] Compiling num-complex v0.1.35 [INFO] [stderr] Compiling rand v0.3.15 [INFO] [stderr] Compiling num-bigint v0.1.35 [INFO] [stderr] Compiling num-rational v0.1.35 [INFO] [stderr] Compiling num v0.1.36 [INFO] [stderr] Compiling la v0.2.0 [INFO] [stderr] Compiling erasure-codes v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:45:17 [INFO] [stderr] | [INFO] [stderr] 45 | try!(write!(f, "Invalid code")); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:48:17 [INFO] [stderr] | [INFO] [stderr] 48 | try!(write!(f, "Malformed data")); [INFO] [stderr] | ^^^ [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:195:9 [INFO] [stderr] | [INFO] [stderr] 195 | let mut rng = rand::thread_rng(); [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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 read: `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 read: `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 read: `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 read: `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 read: `global_parities` [INFO] [stderr] --> src/main.rs:69:5 [INFO] [stderr] | [INFO] [stderr] 69 | global_parities: Vec>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `v_dot` [INFO] [stderr] --> src/main.rs:103:4 [INFO] [stderr] | [INFO] [stderr] 103 | fn v_dot(a: &Vec, b: &Vec) -> u64 { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `v_add` [INFO] [stderr] --> src/main.rs:114:4 [INFO] [stderr] | [INFO] [stderr] 114 | fn v_add(a: &Vec, b: &Vec) -> Vec { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `v_add_c` [INFO] [stderr] --> src/main.rs:118:4 [INFO] [stderr] | [INFO] [stderr] 118 | fn v_add_c(a: &Vec, c: u8) -> Vec { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `v_mult` [INFO] [stderr] --> src/main.rs:122:4 [INFO] [stderr] | [INFO] [stderr] 122 | fn v_mult(a: &Vec, b: &Vec) -> Vec{ [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `v_mult_c` [INFO] [stderr] --> src/main.rs:126:4 [INFO] [stderr] | [INFO] [stderr] 126 | fn v_mult_c(a: &Vec, c: u8) -> Vec{ [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `to_matrix` [INFO] [stderr] --> src/main.rs:130:4 [INFO] [stderr] | [INFO] [stderr] 130 | fn to_matrix(a: &Vec<&Vec>) -> la::Matrix { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `rank` [INFO] [stderr] --> src/main.rs:145:4 [INFO] [stderr] | [INFO] [stderr] 145 | fn rank(svd: &la::SVD) -> usize { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `one_null_basis` [INFO] [stderr] --> src/main.rs:157:4 [INFO] [stderr] | [INFO] [stderr] 157 | fn one_null_basis(svd: &la::SVD) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `one_null_basis_wrapper` [INFO] [stderr] --> src/main.rs:170:4 [INFO] [stderr] | [INFO] [stderr] 170 | fn one_null_basis_wrapper(a: &Vec<&Vec>) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `rank_wrapper` [INFO] [stderr] --> src/main.rs:179:4 [INFO] [stderr] | [INFO] [stderr] 179 | fn rank_wrapper(a: &Vec<&Vec>) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `generate_g` [INFO] [stderr] --> src/main.rs:189:4 [INFO] [stderr] | [INFO] [stderr] 189 | fn generate_g(spec: &GPCSpec) -> Vec> { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `generate_gzero` [INFO] [stderr] --> src/main.rs:296:4 [INFO] [stderr] | [INFO] [stderr] 296 | fn generate_gzero(spec: &GPCSpec) -> Vec> { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `global_coefficients` [INFO] [stderr] --> src/main.rs:329:4 [INFO] [stderr] | [INFO] [stderr] 329 | fn global_coefficients(spec: &CodeSpec) -> Vec> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `local_parity_coverage` [INFO] [stderr] --> src/main.rs:337:4 [INFO] [stderr] | [INFO] [stderr] 337 | fn local_parity_coverage(spec: &CodeSpec) -> CodeResult>> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `is_recoverable` [INFO] [stderr] --> src/main.rs:361:4 [INFO] [stderr] | [INFO] [stderr] 361 | fn is_recoverable(spec: &CodeSpec, erasures: &Vec) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 31 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.04s [INFO] running `"docker" "inspect" "b22bdd6a9fe5939d8240aeb5d73ef9706169afc73d4bce9afb25111de003066b"` [INFO] running `"docker" "rm" "-f" "b22bdd6a9fe5939d8240aeb5d73ef9706169afc73d4bce9afb25111de003066b"` [INFO] [stdout] b22bdd6a9fe5939d8240aeb5d73ef9706169afc73d4bce9afb25111de003066b [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 7d214503a3a2588a974e894165375217c2587cac3524e9a354b67c1e1702befa [INFO] running `"docker" "start" "-a" "7d214503a3a2588a974e894165375217c2587cac3524e9a354b67c1e1702befa"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling erasure-codes v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:45:17 [INFO] [stderr] | [INFO] [stderr] 45 | try!(write!(f, "Invalid code")); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:48:17 [INFO] [stderr] | [INFO] [stderr] 48 | try!(write!(f, "Malformed data")); [INFO] [stderr] | ^^^ [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:195:9 [INFO] [stderr] | [INFO] [stderr] 195 | let mut rng = rand::thread_rng(); [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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 read: `global_parities` [INFO] [stderr] --> src/main.rs:69:5 [INFO] [stderr] | [INFO] [stderr] 69 | global_parities: Vec>, [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:118:4 [INFO] [stderr] | [INFO] [stderr] 118 | fn v_add_c(a: &Vec, c: u8) -> Vec { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `v_mult` [INFO] [stderr] --> src/main.rs:122:4 [INFO] [stderr] | [INFO] [stderr] 122 | fn v_mult(a: &Vec, b: &Vec) -> Vec{ [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `global_coefficients` [INFO] [stderr] --> src/main.rs:329:4 [INFO] [stderr] | [INFO] [stderr] 329 | fn global_coefficients(spec: &CodeSpec) -> Vec> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_gpc_gzero_2x2_2_1` [INFO] [stderr] --> src/main.rs:597:8 [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:621:8 [INFO] [stderr] | [INFO] [stderr] 621 | fn test_gpc_gzero_2x2_1_2() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 14 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.15s [INFO] running `"docker" "inspect" "7d214503a3a2588a974e894165375217c2587cac3524e9a354b67c1e1702befa"` [INFO] running `"docker" "rm" "-f" "7d214503a3a2588a974e894165375217c2587cac3524e9a354b67c1e1702befa"` [INFO] [stdout] 7d214503a3a2588a974e894165375217c2587cac3524e9a354b67c1e1702befa [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 45dd4797b9f62a429f60e3daec721e1a9f178bc88cf7b7eb88c90e50c76487e5 [INFO] running `"docker" "start" "-a" "45dd4797b9f62a429f60e3daec721e1a9f178bc88cf7b7eb88c90e50c76487e5"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:45:17 [INFO] [stderr] | [INFO] [stderr] 45 | try!(write!(f, "Invalid code")); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:48:17 [INFO] [stderr] | [INFO] [stderr] 48 | try!(write!(f, "Malformed data")); [INFO] [stderr] | ^^^ [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:195:9 [INFO] [stderr] | [INFO] [stderr] 195 | let mut rng = rand::thread_rng(); [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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: if this is intentional, prefix it 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 read: `global_parities` [INFO] [stderr] --> src/main.rs:69:5 [INFO] [stderr] | [INFO] [stderr] 69 | global_parities: Vec>, [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:118:4 [INFO] [stderr] | [INFO] [stderr] 118 | fn v_add_c(a: &Vec, c: u8) -> Vec { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `v_mult` [INFO] [stderr] --> src/main.rs:122:4 [INFO] [stderr] | [INFO] [stderr] 122 | fn v_mult(a: &Vec, b: &Vec) -> Vec{ [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `global_coefficients` [INFO] [stderr] --> src/main.rs:329:4 [INFO] [stderr] | [INFO] [stderr] 329 | fn global_coefficients(spec: &CodeSpec) -> Vec> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_gpc_gzero_2x2_2_1` [INFO] [stderr] --> src/main.rs:597:8 [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:621:8 [INFO] [stderr] | [INFO] [stderr] 621 | fn test_gpc_gzero_2x2_1_2() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 14 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/erasure_codes-15fa40c0a34c213b [INFO] [stdout] [INFO] [stdout] running 9 tests [INFO] [stdout] test tests::test_rank_3 ... ok [INFO] [stdout] test tests::test_rank_1 ... ok [INFO] [stdout] test tests::test_local_parity_coverage ... ok [INFO] [stdout] test tests::test_one_null_basis ... ok [INFO] [stdout] test tests::test_rank_2 ... ok [INFO] [stdout] test tests::test_encode ... ok [INFO] [stdout] test tests::test_gpc_gzero_2x2_1_1 ... ok [INFO] [stdout] test tests::test_is_recoverable ... ok [INFO] [stdout] test tests::test_generate_g ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- tests::test_generate_g stdout ---- [INFO] [stdout] thread 'tests::test_generate_g' panicked at 'index out of bounds: the len is 0 but the index is 0', src/main.rs:256:44 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55ed8cc5a744 - backtrace::backtrace::libunwind::trace::hc1c4a1d8ad423b97 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stdout] 1: 0x55ed8cc5a744 - backtrace::backtrace::trace_unsynchronized::h82274781060cb056 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x55ed8cc5a744 - std::sys_common::backtrace::_print_fmt::h2a45d89b653a4da8 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stdout] 3: 0x55ed8cc5a744 - ::fmt::h41a0a93ab85e6aa1 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stdout] 4: 0x55ed8cc8366c - core::fmt::write::hdaea18585065a96d [INFO] [stdout] at src/libcore/fmt/mod.rs:1069 [INFO] [stdout] 5: 0x55ed8cbf8d15 - std::io::Write::write_fmt::h42f0550b6bd39c6e [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/io/mod.rs:1504 [INFO] [stdout] 6: 0x55ed8cc54d31 - std::io::impls::>::write_fmt::h223d7b7033cad46d [INFO] [stdout] at src/libstd/io/impls.rs:156 [INFO] [stdout] 7: 0x55ed8cc5d015 - std::sys_common::backtrace::_print::hd95f9978cc145ca4 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stdout] 8: 0x55ed8cc5d015 - std::sys_common::backtrace::print::hfb25ca2291be47d0 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stdout] 9: 0x55ed8cc5d015 - std::panicking::default_hook::{{closure}}::h44f76cee5dc8591c [INFO] [stdout] at src/libstd/panicking.rs:198 [INFO] [stdout] 10: 0x55ed8cc5ccfb - std::panicking::default_hook::h198e1a712910f1e6 [INFO] [stdout] at src/libstd/panicking.rs:215 [INFO] [stdout] 11: 0x55ed8cc5d672 - std::panicking::rust_panic_with_hook::hc0b4730bb8013f9d [INFO] [stdout] at src/libstd/panicking.rs:511 [INFO] [stdout] 12: 0x55ed8cc5d25b - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:419 [INFO] [stdout] 13: 0x55ed8cc81de1 - core::panicking::panic_fmt::h1ac71ad045d55416 [INFO] [stdout] at src/libcore/panicking.rs:111 [INFO] [stdout] 14: 0x55ed8cc81da2 - core::panicking::panic_bounds_check::h111737a547b9c0f6 [INFO] [stdout] at src/libcore/panicking.rs:69 [INFO] [stdout] 15: 0x55ed8cbf0192 - >::index::hd194f59c27c94176 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libcore/slice/mod.rs:2872 [INFO] [stdout] 16: 0x55ed8cbef772 - core::slice:: for [T]>::index::h8a3bc37cc8b89b9a [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libcore/slice/mod.rs:2732 [INFO] [stdout] 17: 0x55ed8cbe3a2d - as core::ops::index::Index>::index::h5247ce089546c2fd [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/liballoc/vec.rs:1945 [INFO] [stdout] 18: 0x55ed8cbe7f87 - erasure_codes::generate_g::he162b101ff317bb6 [INFO] [stdout] at src/main.rs:256 [INFO] [stdout] 19: 0x55ed8cbedee6 - erasure_codes::tests::test_generate_g::heb41f64386a5615d [INFO] [stdout] at src/main.rs:687 [INFO] [stdout] 20: 0x55ed8cbede9a - erasure_codes::tests::test_generate_g::{{closure}}::hd3beb1a3071814ce [INFO] [stdout] at src/main.rs:685 [INFO] [stdout] 21: 0x55ed8cbd242e - core::ops::function::FnOnce::call_once::h15c274a02c2f785b [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libcore/ops/function.rs:232 [INFO] [stdout] 22: 0x55ed8cc201a6 - as core::ops::function::FnOnce>::call_once::hc165f65f4331a55c [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/liballoc/boxed.rs:1008 [INFO] [stdout] 23: 0x55ed8cc201a6 - as core::ops::function::FnOnce<()>>::call_once::hb89f1f769cad07ce [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panic.rs:318 [INFO] [stdout] 24: 0x55ed8cc201a6 - std::panicking::try::do_call::h104f7f3dae5a1b29 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:331 [INFO] [stdout] 25: 0x55ed8cc201a6 - std::panicking::try::h0e20f01361cba753 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:274 [INFO] [stdout] 26: 0x55ed8cc201a6 - std::panic::catch_unwind::h0bd0c84b5f4cd121 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panic.rs:394 [INFO] [stdout] 27: 0x55ed8cc201a6 - test::run_test_in_process::hf34c22adfeb6853d [INFO] [stdout] at src/libtest/lib.rs:541 [INFO] [stdout] 28: 0x55ed8cc201a6 - test::run_test::run_test_inner::{{closure}}::h40d568b4c10a12f1 [INFO] [stdout] at src/libtest/lib.rs:450 [INFO] [stdout] 29: 0x55ed8cbf81c6 - std::sys_common::backtrace::__rust_begin_short_backtrace::hffd9774ad3f2d778 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/sys_common/backtrace.rs:130 [INFO] [stdout] 30: 0x55ed8cbfd555 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h4594020476cf52d4 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/thread/mod.rs:475 [INFO] [stdout] 31: 0x55ed8cbfd555 - as core::ops::function::FnOnce<()>>::call_once::h9d0a6d45b73e29e4 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panic.rs:318 [INFO] [stdout] 32: 0x55ed8cbfd555 - std::panicking::try::do_call::h902fd77b30bb3bb7 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:331 [INFO] [stdout] 33: 0x55ed8cbfd555 - std::panicking::try::hc17d3a628e65d49d [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:274 [INFO] [stdout] 34: 0x55ed8cbfd555 - std::panic::catch_unwind::h9c9d49cbb6b18017 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panic.rs:394 [INFO] [stdout] 35: 0x55ed8cbfd555 - std::thread::Builder::spawn_unchecked::{{closure}}::h6a6f5a333fd631a2 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/thread/mod.rs:474 [INFO] [stdout] 36: 0x55ed8cbfd555 - core::ops::function::FnOnce::call_once{{vtable.shim}}::ha6fb197e0ce57f73 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libcore/ops/function.rs:232 [INFO] [stdout] 37: 0x55ed8cc63e8a - as core::ops::function::FnOnce>::call_once::h1f1fac7de7dd9691 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/liballoc/boxed.rs:1008 [INFO] [stdout] 38: 0x55ed8cc63e8a - as core::ops::function::FnOnce>::call_once::ha031f48633a6af54 [INFO] [stdout] at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/liballoc/boxed.rs:1008 [INFO] [stdout] 39: 0x55ed8cc63e8a - std::sys::unix::thread::Thread::new::thread_start::h241864caf436e182 [INFO] [stdout] at src/libstd/sys/unix/thread.rs:87 [INFO] [stdout] 40: 0x7fa818c39609 - start_thread [INFO] [stdout] 41: 0x7fa818b45103 - __clone [INFO] [stdout] 42: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] tests::test_generate_g [INFO] [stdout] [INFO] [stdout] test result: FAILED. 8 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--bin erasure-codes' [INFO] running `"docker" "inspect" "45dd4797b9f62a429f60e3daec721e1a9f178bc88cf7b7eb88c90e50c76487e5"` [INFO] running `"docker" "rm" "-f" "45dd4797b9f62a429f60e3daec721e1a9f178bc88cf7b7eb88c90e50c76487e5"` [INFO] [stdout] 45dd4797b9f62a429f60e3daec721e1a9f178bc88cf7b7eb88c90e50c76487e5