[INFO] cloning repository https://github.com/stela2502/rust_data_table
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stela2502/rust_data_table" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstela2502%2Frust_data_table", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstela2502%2Frust_data_table'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a978460f4c7c5eca49ccf17584a1a3175a436509
[INFO] testing stela2502/rust_data_table against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstela2502%2Frust_data_table" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/stela2502/rust_data_table
[INFO] finished tweaking git repo https://github.com/stela2502/rust_data_table
[INFO] tweaked toml for git repo https://github.com/stela2502/rust_data_table written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/stela2502/rust_data_table on toolchain 2fd6efc32704647e64d3d646d21c4c68eae100e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/stela2502/rust_data_table 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" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: target.x86_64-pc-windows-gnu.linker
[INFO] [stderr] warning: unused manifest key: target.x86_64-unknown-linux-musl.linker
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ndarray v0.16.1
[INFO] [stderr]   Downloaded syn v2.0.107
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d32bc3040ef95fddc9d35cdce33117ce852a631e961f5f4f0d990f80a8051308
[INFO] running `Command { std: "docker" "start" "-a" "d32bc3040ef95fddc9d35cdce33117ce852a631e961f5f4f0d990f80a8051308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d32bc3040ef95fddc9d35cdce33117ce852a631e961f5f4f0d990f80a8051308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d32bc3040ef95fddc9d35cdce33117ce852a631e961f5f4f0d990f80a8051308", kill_on_drop: false }`
[INFO] [stdout] d32bc3040ef95fddc9d35cdce33117ce852a631e961f5f4f0d990f80a8051308
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4de84e09dc7ed96551888a1fc6262787cdc9d599adda875235f5954a1f656c2a
[INFO] running `Command { std: "docker" "start" "-a" "4de84e09dc7ed96551888a1fc6262787cdc9d599adda875235f5954a1f656c2a", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: target.x86_64-pc-windows-gnu.linker
[INFO] [stderr] warning: unused manifest key: target.x86_64-unknown-linux-musl.linker
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling unicode-ident v1.0.20
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.2
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling anstyle v1.0.13
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling clap_lex v0.7.6
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling anstream v0.6.21
[INFO] [stderr]    Compiling csv-core v0.1.13
[INFO] [stderr]    Compiling clap_builder v4.5.50
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling syn v2.0.107
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling ordered-float v5.1.0
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling ndarray v0.16.1
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling clap v4.5.50
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling csv v1.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling rust_data_table v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Deserialize` and `Serialize`
[INFO] [stdout]  --> src/survival_data.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use serde::{Serialize, Deserialize};
[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: `super::*`
[INFO] [stdout]    --> src/survival_data.rs:987:9
[INFO] [stdout]     |
[INFO] [stdout] 987 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `File` and `self`
[INFO] [stdout]    --> src/survival_data.rs:988:19
[INFO] [stdout]     |
[INFO] [stdout] 988 |     use std::fs::{self, File};
[INFO] [stdout]     |                   ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]    --> src/survival_data.rs:989:9
[INFO] [stdout]     |
[INFO] [stdout] 989 |     use std::io::Write;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]    --> src/survival_data.rs:990:9
[INFO] [stdout]     |
[INFO] [stdout] 990 |     use std::collections::HashSet;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tempfile::tempdir`
[INFO] [stdout]    --> src/survival_data.rs:991:9
[INFO] [stdout]     |
[INFO] [stdout] 991 |     use tempfile::tempdir;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/factor.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json`
[INFO] [stdout]  --> src/factor.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]   --> src/survival_data.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | use rand::thread_rng;
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]    --> src/survival_data.rs:453:23
[INFO] [stdout]     |
[INFO] [stdout] 453 |         let mut rng = thread_rng();
[INFO] [stdout]     |                       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/survival_data.rs:492:9
[INFO] [stdout]     |
[INFO] [stdout] 491 |         return ;
[INFO] [stdout]     |         ------ any code following this expression is unreachable
[INFO] [stdout] 492 |         println!("Shape: {} rows x {} columns", self.numeric_data.nrows(), self.numeric_data.ncols());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/survival_data.rs:726:9
[INFO] [stdout]     |
[INFO] [stdout] 725 |         return 0;
[INFO] [stdout]     |         -------- any code following this expression is unreachable
[INFO] [stdout] 726 |         let mut keep_cols = Vec::new();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header_name`
[INFO] [stdout]   --> src/survival_data.rs:93:21
[INFO] [stdout]    |
[INFO] [stdout] 93 |                 let header_name = if s.trim().is_empty() {
[INFO] [stdout]    |                     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_header_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `threshold`
[INFO] [stdout]    --> src/survival_data.rs:724:38
[INFO] [stdout]     |
[INFO] [stdout] 724 |     pub fn filter_low_var(&mut self, threshold: f64) -> usize{
[INFO] [stdout]     |                                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_threshold`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col_name`
[INFO] [stdout]    --> src/survival_data.rs:889:21
[INFO] [stdout]     |
[INFO] [stdout] 889 |             for (j, col_name) in self.headers.iter().enumerate() {
[INFO] [stdout]     |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_col_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `header_error` and `factors_extra_columns` are never used
[INFO] [stdout]    --> src/survival_data.rs:478:8
[INFO] [stdout]     |
[INFO] [stdout]  57 | impl SurvivalData {
[INFO] [stdout]     | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 478 |     fn header_error( &self, i: usize, expanded: usize) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 513 |     fn factors_extra_columns( &self ) -> usize {
[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 `Result` that must be used
[INFO] [stdout]   --> src/survival_data.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |             writeln!(f,"{}",factor );
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 50 |             let _ = writeln!(f,"{}",factor );
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/generate_json.rs:89:17
[INFO] [stdout]    |
[INFO] [stdout] 89 |             let mut new_name = p.file_name()
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.14s
[INFO] running `Command { std: "docker" "inspect" "4de84e09dc7ed96551888a1fc6262787cdc9d599adda875235f5954a1f656c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4de84e09dc7ed96551888a1fc6262787cdc9d599adda875235f5954a1f656c2a", kill_on_drop: false }`
[INFO] [stdout] 4de84e09dc7ed96551888a1fc6262787cdc9d599adda875235f5954a1f656c2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d95cf2585b875758926d44d55fa82f83d20c66a4e2b0f2b83d0c7b42000cc66f
[INFO] running `Command { std: "docker" "start" "-a" "d95cf2585b875758926d44d55fa82f83d20c66a4e2b0f2b83d0c7b42000cc66f", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: target.x86_64-pc-windows-gnu.linker
[INFO] [stderr] warning: unused manifest key: target.x86_64-unknown-linux-musl.linker
[INFO] [stdout] warning: unused imports: `Deserialize` and `Serialize`
[INFO] [stdout]  --> src/survival_data.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use serde::{Serialize, Deserialize};
[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: `super::*`
[INFO] [stdout]    --> src/survival_data.rs:987:9
[INFO] [stdout]     |
[INFO] [stdout] 987 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `File` and `self`
[INFO] [stdout]    --> src/survival_data.rs:988:19
[INFO] [stdout]     |
[INFO] [stdout] 988 |     use std::fs::{self, File};
[INFO] [stdout]     |                   ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]    --> src/survival_data.rs:989:9
[INFO] [stdout]     |
[INFO] [stdout] 989 |     use std::io::Write;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]    --> src/survival_data.rs:990:9
[INFO] [stdout]     |
[INFO] [stdout] 990 |     use std::collections::HashSet;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tempfile::tempdir`
[INFO] [stdout]    --> src/survival_data.rs:991:9
[INFO] [stdout]     |
[INFO] [stdout] 991 |     use tempfile::tempdir;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/factor.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json`
[INFO] [stdout]  --> src/factor.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]   --> src/survival_data.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | use rand::thread_rng;
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]    --> src/survival_data.rs:453:23
[INFO] [stdout]     |
[INFO] [stdout] 453 |         let mut rng = thread_rng();
[INFO] [stdout]     |                       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/survival_data.rs:492:9
[INFO] [stdout]     |
[INFO] [stdout] 491 |         return ;
[INFO] [stdout]     |         ------ any code following this expression is unreachable
[INFO] [stdout] 492 |         println!("Shape: {} rows x {} columns", self.numeric_data.nrows(), self.numeric_data.ncols());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/survival_data.rs:726:9
[INFO] [stdout]     |
[INFO] [stdout] 725 |         return 0;
[INFO] [stdout]     |         -------- any code following this expression is unreachable
[INFO] [stdout] 726 |         let mut keep_cols = Vec::new();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header_name`
[INFO] [stdout]   --> src/survival_data.rs:93:21
[INFO] [stdout]    |
[INFO] [stdout] 93 |                 let header_name = if s.trim().is_empty() {
[INFO] [stdout]    |                     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_header_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `threshold`
[INFO] [stdout]    --> src/survival_data.rs:724:38
[INFO] [stdout]     |
[INFO] [stdout] 724 |     pub fn filter_low_var(&mut self, threshold: f64) -> usize{
[INFO] [stdout]     |                                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_threshold`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col_name`
[INFO] [stdout]    --> src/survival_data.rs:889:21
[INFO] [stdout]     |
[INFO] [stdout] 889 |             for (j, col_name) in self.headers.iter().enumerate() {
[INFO] [stdout]     |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_col_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `header_error` and `factors_extra_columns` are never used
[INFO] [stdout]    --> src/survival_data.rs:478:8
[INFO] [stdout]     |
[INFO] [stdout]  57 | impl SurvivalData {
[INFO] [stdout]     | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 478 |     fn header_error( &self, i: usize, expanded: usize) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 513 |     fn factors_extra_columns( &self ) -> usize {
[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 `Result` that must be used
[INFO] [stdout]   --> src/survival_data.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |             writeln!(f,"{}",factor );
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 50 |             let _ = writeln!(f,"{}",factor );
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rust_data_table v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/generate_json.rs:89:17
[INFO] [stdout]    |
[INFO] [stdout] 89 |             let mut new_name = p.file_name()
[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 imports: `Deserialize` and `Serialize`
[INFO] [stdout]  --> src/survival_data.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 | use serde::{Serialize, Deserialize};
[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::fs`
[INFO] [stdout]    --> src/survival_data.rs:932:9
[INFO] [stdout]     |
[INFO] [stdout] 932 |     use std::fs;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]    --> src/survival_data.rs:933:9
[INFO] [stdout]     |
[INFO] [stdout] 933 |     use std::collections::HashSet;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]    --> src/survival_data.rs:988:19
[INFO] [stdout]     |
[INFO] [stdout] 988 |     use std::fs::{self, File};
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tempfile::tempdir`
[INFO] [stdout]    --> src/survival_data.rs:991:9
[INFO] [stdout]     |
[INFO] [stdout] 991 |     use tempfile::tempdir;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/factor.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json`
[INFO] [stdout]  --> src/factor.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]   --> src/survival_data.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | use rand::thread_rng;
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]    --> src/survival_data.rs:453:23
[INFO] [stdout]     |
[INFO] [stdout] 453 |         let mut rng = thread_rng();
[INFO] [stdout]     |                       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/survival_data.rs:492:9
[INFO] [stdout]     |
[INFO] [stdout] 491 |         return ;
[INFO] [stdout]     |         ------ any code following this expression is unreachable
[INFO] [stdout] 492 |         println!("Shape: {} rows x {} columns", self.numeric_data.nrows(), self.numeric_data.ncols());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/survival_data.rs:726:9
[INFO] [stdout]     |
[INFO] [stdout] 725 |         return 0;
[INFO] [stdout]     |         -------- any code following this expression is unreachable
[INFO] [stdout] 726 |         let mut keep_cols = Vec::new();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header_name`
[INFO] [stdout]   --> src/survival_data.rs:93:21
[INFO] [stdout]    |
[INFO] [stdout] 93 |                 let header_name = if s.trim().is_empty() {
[INFO] [stdout]    |                     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_header_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `threshold`
[INFO] [stdout]    --> src/survival_data.rs:724:38
[INFO] [stdout]     |
[INFO] [stdout] 724 |     pub fn filter_low_var(&mut self, threshold: f64) -> usize{
[INFO] [stdout]     |                                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_threshold`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col_name`
[INFO] [stdout]    --> src/survival_data.rs:889:21
[INFO] [stdout]     |
[INFO] [stdout] 889 |             for (j, col_name) in self.headers.iter().enumerate() {
[INFO] [stdout]     |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_col_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]     --> src/survival_data.rs:1254:13
[INFO] [stdout]      |
[INFO] [stdout] 1254 |         let f = sd.factors.get("group_000").unwrap();
[INFO] [stdout]      |             ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `header_error` and `factors_extra_columns` are never used
[INFO] [stdout]    --> src/survival_data.rs:478:8
[INFO] [stdout]     |
[INFO] [stdout]  57 | impl SurvivalData {
[INFO] [stdout]     | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 478 |     fn header_error( &self, i: usize, expanded: usize) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 513 |     fn factors_extra_columns( &self ) -> usize {
[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 `std::result::Result` that must be used
[INFO] [stdout]   --> src/survival_data.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |             writeln!(f,"{}",factor );
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 50 |             let _ = writeln!(f,"{}",factor );
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/survival_data.rs:1033:9
[INFO] [stdout]      |
[INFO] [stdout] 1033 |         temp.save_factors(&factors_path); //default location
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1033 |         let _ = temp.save_factors(&factors_path); //default location
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/factor.rs:377:9
[INFO] [stdout]     |
[INFO] [stdout] 377 |         factor.modify_levels(&new_values, Some(&levels_to_change));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 377 |         let _ = factor.modify_levels(&new_values, Some(&levels_to_change));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/factor.rs:385:9
[INFO] [stdout]     |
[INFO] [stdout] 385 |         factor.modify_levels(&all_new_values, None);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 385 |         let _ = factor.modify_levels(&all_new_values, None);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.01s
[INFO] running `Command { std: "docker" "inspect" "d95cf2585b875758926d44d55fa82f83d20c66a4e2b0f2b83d0c7b42000cc66f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d95cf2585b875758926d44d55fa82f83d20c66a4e2b0f2b83d0c7b42000cc66f", kill_on_drop: false }`
[INFO] [stdout] d95cf2585b875758926d44d55fa82f83d20c66a4e2b0f2b83d0c7b42000cc66f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ea80620b4d461260053a57840ea3625f68b770933502832a71ff30da40fc52d2
[INFO] running `Command { std: "docker" "start" "-a" "ea80620b4d461260053a57840ea3625f68b770933502832a71ff30da40fc52d2", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: target.x86_64-pc-windows-gnu.linker
[INFO] [stderr] warning: unused manifest key: target.x86_64-unknown-linux-musl.linker
[INFO] [stderr] warning: unused imports: `Deserialize` and `Serialize`
[INFO] [stderr]  --> src/survival_data.rs:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 | use serde::{Serialize, Deserialize};
[INFO] [stderr]   |             ^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/survival_data.rs:987:9
[INFO] [stderr]     |
[INFO] [stderr] 987 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `File` and `self`
[INFO] [stderr]    --> src/survival_data.rs:988:19
[INFO] [stderr]     |
[INFO] [stderr] 988 |     use std::fs::{self, File};
[INFO] [stderr]     |                   ^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Write`
[INFO] [stderr]    --> src/survival_data.rs:989:9
[INFO] [stderr]     |
[INFO] [stderr] 989 |     use std::io::Write;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashSet`
[INFO] [stderr]    --> src/survival_data.rs:990:9
[INFO] [stderr]     |
[INFO] [stderr] 990 |     use std::collections::HashSet;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tempfile::tempdir`
[INFO] [stderr]    --> src/survival_data.rs:991:9
[INFO] [stderr]     |
[INFO] [stderr] 991 |     use tempfile::tempdir;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashSet`
[INFO] [stderr]  --> src/factor.rs:1:33
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::{HashMap, HashSet};
[INFO] [stderr]   |                                 ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde_json`
[INFO] [stderr]  --> src/factor.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use serde_json;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stderr]   --> src/survival_data.rs:12:11
[INFO] [stderr]    |
[INFO] [stderr] 12 | use rand::thread_rng;
[INFO] [stderr]    |           ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stderr]    --> src/survival_data.rs:453:23
[INFO] [stderr]     |
[INFO] [stderr] 453 |         let mut rng = thread_rng();
[INFO] [stderr]     |                       ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/survival_data.rs:492:9
[INFO] [stderr]     |
[INFO] [stderr] 491 |         return ;
[INFO] [stderr]     |         ------ any code following this expression is unreachable
[INFO] [stderr] 492 |         println!("Shape: {} rows x {} columns", self.numeric_data.nrows(), self.numeric_data.ncols());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr]     = note: this warning originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/survival_data.rs:726:9
[INFO] [stderr]     |
[INFO] [stderr] 725 |         return 0;
[INFO] [stderr]     |         -------- any code following this expression is unreachable
[INFO] [stderr] 726 |         let mut keep_cols = Vec::new();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `header_name`
[INFO] [stderr]   --> src/survival_data.rs:93:21
[INFO] [stderr]    |
[INFO] [stderr] 93 |                 let header_name = if s.trim().is_empty() {
[INFO] [stderr]    |                     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_header_name`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `threshold`
[INFO] [stderr]    --> src/survival_data.rs:724:38
[INFO] [stderr]     |
[INFO] [stderr] 724 |     pub fn filter_low_var(&mut self, threshold: f64) -> usize{
[INFO] [stderr]     |                                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_threshold`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col_name`
[INFO] [stderr]    --> src/survival_data.rs:889:21
[INFO] [stderr]     |
[INFO] [stderr] 889 |             for (j, col_name) in self.headers.iter().enumerate() {
[INFO] [stderr]     |                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_col_name`
[INFO] [stderr] 
[INFO] [stderr] warning: methods `header_error` and `factors_extra_columns` are never used
[INFO] [stderr]    --> src/survival_data.rs:478:8
[INFO] [stderr]     |
[INFO] [stderr]  57 | impl SurvivalData {
[INFO] [stderr]     | ----------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 478 |     fn header_error( &self, i: usize, expanded: usize) -> String {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 513 |     fn factors_extra_columns( &self ) -> usize {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/survival_data.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |             writeln!(f,"{}",factor );
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 50 |             let _ = writeln!(f,"{}",factor );
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_data_table` (lib) generated 17 warnings (run `cargo fix --lib -p rust_data_table` to apply 11 suggestions)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/generate_json.rs:89:17
[INFO] [stderr]    |
[INFO] [stderr] 89 |             let mut new_name = p.file_name()
[INFO] [stderr]    |                 ----^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]    --> src/survival_data.rs:932:9
[INFO] [stderr]     |
[INFO] [stderr] 932 |     use std::fs;
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashSet`
[INFO] [stderr]    --> src/survival_data.rs:933:9
[INFO] [stderr]     |
[INFO] [stderr] 933 |     use std::collections::HashSet;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]    --> src/survival_data.rs:988:19
[INFO] [stderr]     |
[INFO] [stderr] 988 |     use std::fs::{self, File};
[INFO] [stderr]     |                   ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]     --> src/survival_data.rs:1254:13
[INFO] [stderr]      |
[INFO] [stderr] 1254 |         let f = sd.factors.get("group_000").unwrap();
[INFO] [stderr]      |             ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/survival_data.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |             writeln!(f,"{}",factor );
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 50 |             let _ = writeln!(f,"{}",factor );
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/survival_data.rs:1033:9
[INFO] [stderr]      |
[INFO] [stderr] 1033 |         temp.save_factors(&factors_path); //default location
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]      |
[INFO] [stderr] 1033 |         let _ = temp.save_factors(&factors_path); //default location
[INFO] [stderr]      |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/factor.rs:377:9
[INFO] [stderr]     |
[INFO] [stderr] 377 |         factor.modify_levels(&new_values, Some(&levels_to_change));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 377 |         let _ = factor.modify_levels(&new_values, Some(&levels_to_change));
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/factor.rs:385:9
[INFO] [stderr]     |
[INFO] [stderr] 385 |         factor.modify_levels(&all_new_values, None);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 385 |         let _ = factor.modify_levels(&all_new_values, None);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_data_table` (bin "generate_json" test) generated 1 warning (run `cargo fix --bin "generate_json" -p rust_data_table --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `rust_data_table` (lib test) generated 20 warnings (12 duplicates) (run `cargo fix --lib -p rust_data_table --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test factor::tests::test_modify_levels ... ok
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_data_table-4a7c75eab735b114)
[INFO] [stdout] test factor::tests::test_push_one_hot ... ok
[INFO] [stdout] test factor::tests::test_push_categorical_indexed ... ok
[INFO] [stdout] test survival_data::tests_survival_data_from_file_one_hot_factors::test_survivaldata_one_hot_factors ... FAILED
[INFO] [stdout] test survival_data::tests_survival_data_from_file_one_hot_factors::test_update_value_and_update_value_str ... ok
[INFO] [stdout] test survival_data::tests_survival_data_from_file_one_hot_factors::test_order ... ok
[INFO] [stdout] test survival_data::tests_survival_data_from_file_one_hot_factors::test_survivaldata_train_test_split_unique ... ok
[INFO] [stdout] test factor::tests::test_factor_subset_verbose ... ok
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout] test survival_data::tests_one_hot_factors::test_save_and_load_factors ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- survival_data::tests_survival_data_from_file_one_hot_factors::test_survivaldata_one_hot_factors stdout ----
[INFO] [stdout] Error: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout] ---- survival_data::tests_one_hot_factors::test_save_and_load_factors stdout ----
[INFO] [stdout] Error: Read-only file system (os error 30)
[INFO] [stdout] 
[INFO] [stdout] Stack backtrace:
[INFO] [stdout]    0: <anyhow::Error as core::convert::From<std::io::error::Error>>::from
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/anyhow-1.0.100/src/backtrace.rs:27:14
[INFO] [stdout]    1: <core::result::Result<(), anyhow::Error> as core::ops::try_trait::FromResidual<core::result::Result<core::convert::Infallible, std::io::error::Error>>>::from_residual
[INFO] [stdout]              at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/result.rs:2189:27
[INFO] [stdout]    2: <rust_data_table::survival_data::SurvivalData>::save_factors::<&std::path::PathBuf>
[INFO] [stdout]              at ./src/survival_data.rs:910:20
[INFO] [stdout]    3: rust_data_table::survival_data::tests_one_hot_factors::test_save_and_load_factors
[INFO] [stdout]              at ./src/survival_data.rs:959:14
[INFO] [stdout]    4: rust_data_table::survival_data::tests_one_hot_factors::test_save_and_load_factors::{closure#0}
[INFO] [stdout]              at ./src/survival_data.rs:936:40
[INFO] [stdout]    5: <rust_data_table::survival_data::tests_one_hot_factors::test_save_and_load_factors::{closure#0} as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/ops/function.rs:250:5
[INFO] [stdout]    6: <fn() -> core::result::Result<(), alloc::string::String> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/ops/function.rs:250:5
[INFO] [stdout]    7: test::__rust_begin_short_backtrace::<core::result::Result<(), alloc::string::String>, fn() -> core::result::Result<(), alloc::string::String>>
[INFO] [stdout]              at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:663:18
[INFO] [stdout]    8: test::run_test_in_process::{closure#0}
[INFO] [stdout]              at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:686:74
[INFO] [stdout]    9: <core::panic::unwind_safe::AssertUnwindSafe<test::run_test_in_process::{closure#0}> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   10: std::panicking::catch_unwind::do_call::<core::panic::unwind_safe::AssertUnwindSafe<test::run_test_in_process::{closure#0}>, core::result::Result<(), alloc::string::String>>
[INFO] [stdout]              at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:581:40
[INFO] [stdout]   11: std::panicking::catch_unwind::<core::result::Result<(), alloc::string::String>, core::panic::unwind_safe::AssertUnwindSafe<test::run_test_in_process::{closure#0}>>
[INFO] [stdout]              at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:544:19
[INFO] [stdout]   12: std::panic::catch_unwind::<core::panic::unwind_safe::AssertUnwindSafe<test::run_test_in_process::{closure#0}>, core::result::Result<(), alloc::string::String>>
[INFO] [stdout]              at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panic.rs:359:14
[INFO] [stdout]   13: test::run_test_in_process
[INFO] [stdout]              at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:686:27
[INFO] [stdout]   14: test::run_test::{closure#0}
[INFO] [stdout]              at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:607:43
[INFO] [stdout]   15: test::run_test::{closure#1}
[INFO] [stdout]              at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:637:41
[INFO] [stdout]   16: std::sys::backtrace::__rust_begin_short_backtrace::<test::run_test::{closure#1}, ()>
[INFO] [stdout]              at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   17: std::thread::lifecycle::spawn_unchecked::<test::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]              at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   18: <core::panic::unwind_safe::AssertUnwindSafe<std::thread::lifecycle::spawn_unchecked<test::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   19: std::panicking::catch_unwind::do_call::<core::panic::unwind_safe::AssertUnwindSafe<std::thread::lifecycle::spawn_unchecked<test::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]              at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:581:40
[INFO] [stdout]   20: std::panicking::catch_unwind::<(), core::panic::unwind_safe::AssertUnwindSafe<std::thread::lifecycle::spawn_unchecked<test::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]              at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:544:19
[INFO] [stdout]   21: std::panic::catch_unwind::<core::panic::unwind_safe::AssertUnwindSafe<std::thread::lifecycle::spawn_unchecked<test::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]              at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panic.rs:359:14
[INFO] [stdout]   22: std::thread::lifecycle::spawn_unchecked::<test::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]              at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   23: <std::thread::lifecycle::spawn_unchecked<test::run_test::{closure#1}, ()>::{closure#1} as core::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]              at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24: <alloc::boxed::Box<dyn core::ops::function::FnOnce<(), Output = ()> + core::marker::Send> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   25: <std::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]              at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   26: <unknown>
[INFO] [stdout]   27: clone
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     survival_data::tests_one_hot_factors::test_save_and_load_factors
[INFO] [stdout]     survival_data::tests_survival_data_from_file_one_hot_factors::test_survivaldata_one_hot_factors
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 7 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ea80620b4d461260053a57840ea3625f68b770933502832a71ff30da40fc52d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea80620b4d461260053a57840ea3625f68b770933502832a71ff30da40fc52d2", kill_on_drop: false }`
[INFO] [stdout] ea80620b4d461260053a57840ea3625f68b770933502832a71ff30da40fc52d2
