[INFO] fetching crate newron 0.5.1...
[INFO] building newron-0.5.1 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate newron 0.5.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate newron 0.5.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate newron 0.5.1
[INFO] tweaked toml for crates.io crate newron 0.5.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate newron 0.5.1 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate newron 0.5.1 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 823279961e9136f36c0f3540a30d0b4dfde12c2d367d584ef08e39dc3fd31850
[INFO] running `Command { std: "docker" "start" "-a" "823279961e9136f36c0f3540a30d0b4dfde12c2d367d584ef08e39dc3fd31850", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "823279961e9136f36c0f3540a30d0b4dfde12c2d367d584ef08e39dc3fd31850", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "823279961e9136f36c0f3540a30d0b4dfde12c2d367d584ef08e39dc3fd31850", kill_on_drop: false }`
[INFO] [stdout] 823279961e9136f36c0f3540a30d0b4dfde12c2d367d584ef08e39dc3fd31850
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd15d8a287c6de77ddc06f72e73a118e592b0171933b2fd434f50e0af9712b60
[INFO] running `Command { std: "docker" "start" "-a" "fd15d8a287c6de77ddc06f72e73a118e592b0171933b2fd434f50e0af9712b60", kill_on_drop: false }`
[INFO] [stderr]    Compiling newron v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::utils`
[INFO] [stdout]   --> src/sequential.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::utils;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/tensor.rs:57:57
[INFO] [stdout]    |
[INFO] [stdout] 57 |            let data: Vec<f64> = (0..number_values).map(|_| (
[INFO] [stdout]    |  __________________________________________________________^
[INFO] [stdout] 58 | |              // formula
[INFO] [stdout] 59 | |              ((-2.0 * rng.rand_float().ln()).sqrt() * (2.0 * PI * rng.rand_float()).cos()) * stdev + mean
[INFO] [stdout]    | | ____________^____________________________________________________________________________________________^
[INFO] [stdout]    | ||____________|
[INFO] [stdout]    |  |
[INFO] [stdout] 60 |  |         )).collect();
[INFO] [stdout]    |  |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 57 -         let data: Vec<f64> = (0..number_values).map(|_| (
[INFO] [stdout] 58 -             // formula
[INFO] [stdout] 59 -             ((-2.0 * rng.rand_float().ln()).sqrt() * (2.0 * PI * rng.rand_float()).cos()) * stdev + mean
[INFO] [stdout] 57 +         let data: Vec<f64> = (0..number_values).map(|_| ((-2.0 * rng.rand_float().ln()).sqrt() * (2.0 * PI * rng.rand_float()).cos()) * stdev + mean).collect();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]   --> src/dataset.rs:89:34
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub fn from_csv(path: &Path, header: bool) -> Result<Dataset, DatasetError> {
[INFO] [stdout]    |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `recall_score`
[INFO] [stdout]    --> src/sequential.rs:213:37
[INFO] [stdout]     |
[INFO] [stdout] 213 | ...                   let recall_score = cm.recall_score(class);
[INFO] [stdout]     |                           ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_recall_score`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `precision_score`
[INFO] [stdout]    --> src/sequential.rs:217:37
[INFO] [stdout]     |
[INFO] [stdout] 217 | ...                   let precision_score = cm.precision_score(class);
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_precision_score`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f1_score`
[INFO] [stdout]    --> src/sequential.rs:221:37
[INFO] [stdout]     |
[INFO] [stdout] 221 | ...                   let f1_score = cm.f1_score(class);
[INFO] [stdout]     |                           ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_f1_score`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `rand_range` is never used
[INFO] [stdout]   --> src/random.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Rand{
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn rand_range(&mut self, a: i32, b: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "fd15d8a287c6de77ddc06f72e73a118e592b0171933b2fd434f50e0af9712b60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd15d8a287c6de77ddc06f72e73a118e592b0171933b2fd434f50e0af9712b60", kill_on_drop: false }`
[INFO] [stdout] fd15d8a287c6de77ddc06f72e73a118e592b0171933b2fd434f50e0af9712b60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ac01b4b6c301a9276626526ccbdba2c77327e264106d38910a5d307db8d41ef
[INFO] running `Command { std: "docker" "start" "-a" "2ac01b4b6c301a9276626526ccbdba2c77327e264106d38910a5d307db8d41ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling newron v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::utils`
[INFO] [stdout]   --> src/sequential.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::utils;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/tensor.rs:57:57
[INFO] [stdout]    |
[INFO] [stdout] 57 |            let data: Vec<f64> = (0..number_values).map(|_| (
[INFO] [stdout]    |  __________________________________________________________^
[INFO] [stdout] 58 | |              // formula
[INFO] [stdout] 59 | |              ((-2.0 * rng.rand_float().ln()).sqrt() * (2.0 * PI * rng.rand_float()).cos()) * stdev + mean
[INFO] [stdout]    | | ____________^____________________________________________________________________________________________^
[INFO] [stdout]    | ||____________|
[INFO] [stdout]    |  |
[INFO] [stdout] 60 |  |         )).collect();
[INFO] [stdout]    |  |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 57 -         let data: Vec<f64> = (0..number_values).map(|_| (
[INFO] [stdout] 58 -             // formula
[INFO] [stdout] 59 -             ((-2.0 * rng.rand_float().ln()).sqrt() * (2.0 * PI * rng.rand_float()).cos()) * stdev + mean
[INFO] [stdout] 57 +         let data: Vec<f64> = (0..number_values).map(|_| ((-2.0 * rng.rand_float().ln()).sqrt() * (2.0 * PI * rng.rand_float()).cos()) * stdev + mean).collect();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]   --> src/dataset.rs:89:34
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub fn from_csv(path: &Path, header: bool) -> Result<Dataset, DatasetError> {
[INFO] [stdout]    |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `recall_score`
[INFO] [stdout]    --> src/sequential.rs:213:37
[INFO] [stdout]     |
[INFO] [stdout] 213 | ...                   let recall_score = cm.recall_score(class);
[INFO] [stdout]     |                           ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_recall_score`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `precision_score`
[INFO] [stdout]    --> src/sequential.rs:217:37
[INFO] [stdout]     |
[INFO] [stdout] 217 | ...                   let precision_score = cm.precision_score(class);
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_precision_score`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f1_score`
[INFO] [stdout]    --> src/sequential.rs:221:37
[INFO] [stdout]     |
[INFO] [stdout] 221 | ...                   let f1_score = cm.f1_score(class);
[INFO] [stdout]     |                           ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_f1_score`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `rand_range` is never used
[INFO] [stdout]   --> src/random.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Rand{
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn rand_range(&mut self, a: i32, b: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::utils`
[INFO] [stdout]   --> src/sequential.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::utils;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/tensor.rs:57:57
[INFO] [stdout]    |
[INFO] [stdout] 57 |            let data: Vec<f64> = (0..number_values).map(|_| (
[INFO] [stdout]    |  __________________________________________________________^
[INFO] [stdout] 58 | |              // formula
[INFO] [stdout] 59 | |              ((-2.0 * rng.rand_float().ln()).sqrt() * (2.0 * PI * rng.rand_float()).cos()) * stdev + mean
[INFO] [stdout]    | | ____________^____________________________________________________________________________________________^
[INFO] [stdout]    | ||____________|
[INFO] [stdout]    |  |
[INFO] [stdout] 60 |  |         )).collect();
[INFO] [stdout]    |  |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 57 -         let data: Vec<f64> = (0..number_values).map(|_| (
[INFO] [stdout] 58 -             // formula
[INFO] [stdout] 59 -             ((-2.0 * rng.rand_float().ln()).sqrt() * (2.0 * PI * rng.rand_float()).cos()) * stdev + mean
[INFO] [stdout] 57 +         let data: Vec<f64> = (0..number_values).map(|_| ((-2.0 * rng.rand_float().ln()).sqrt() * (2.0 * PI * rng.rand_float()).cos()) * stdev + mean).collect();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ColumnType` and `RowType`
[INFO] [stdout]  --> examples/linear_regression.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use newron::dataset::{RowType, Dataset, ColumnType};
[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 variable: `header`
[INFO] [stdout]   --> src/dataset.rs:89:34
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub fn from_csv(path: &Path, header: bool) -> Result<Dataset, DatasetError> {
[INFO] [stdout]    |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `recall_score`
[INFO] [stdout]    --> src/sequential.rs:213:37
[INFO] [stdout]     |
[INFO] [stdout] 213 | ...                   let recall_score = cm.recall_score(class);
[INFO] [stdout]     |                           ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_recall_score`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `precision_score`
[INFO] [stdout]    --> src/sequential.rs:217:37
[INFO] [stdout]     |
[INFO] [stdout] 217 | ...                   let precision_score = cm.precision_score(class);
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_precision_score`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f1_score`
[INFO] [stdout]    --> src/sequential.rs:221:37
[INFO] [stdout]     |
[INFO] [stdout] 221 | ...                   let f1_score = cm.f1_score(class);
[INFO] [stdout]     |                           ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_f1_score`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `rand_range` is never used
[INFO] [stdout]   --> src/random.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Rand{
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn rand_range(&mut self, a: i32, b: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "2ac01b4b6c301a9276626526ccbdba2c77327e264106d38910a5d307db8d41ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ac01b4b6c301a9276626526ccbdba2c77327e264106d38910a5d307db8d41ef", kill_on_drop: false }`
[INFO] [stdout] 2ac01b4b6c301a9276626526ccbdba2c77327e264106d38910a5d307db8d41ef
