[INFO] cloning repository https://github.com/vishusandy/splitter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vishusandy/splitter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvishusandy%2Fsplitter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvishusandy%2Fsplitter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 152dbe5fbe5f658e1446fc91529c0fdb79fbb2d1
[INFO] testing vishusandy/splitter against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvishusandy%2Fsplitter" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vishusandy/splitter on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vishusandy/splitter
[INFO] finished tweaking git repo https://github.com/vishusandy/splitter
[INFO] tweaked toml for git repo https://github.com/vishusandy/splitter written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/vishusandy/splitter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f75bd030c44e653b52cfac4751efb5d9a147df21023dfd53e09450086f4e0e9a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f75bd030c44e653b52cfac4751efb5d9a147df21023dfd53e09450086f4e0e9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f75bd030c44e653b52cfac4751efb5d9a147df21023dfd53e09450086f4e0e9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f75bd030c44e653b52cfac4751efb5d9a147df21023dfd53e09450086f4e0e9a", kill_on_drop: false }`
[INFO] [stdout] f75bd030c44e653b52cfac4751efb5d9a147df21023dfd53e09450086f4e0e9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e53aff96c22cc09b547d9c5214fd911a148cb028609b71530156820fa76d3fdc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e53aff96c22cc09b547d9c5214fd911a148cb028609b71530156820fa76d3fdc", kill_on_drop: false }`
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling splitter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BufReader`
[INFO] [stdout]  --> src/main.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{BufReader, BufRead, BufWriter, Write, Read};
[INFO] [stdout]   |               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::prelude::*`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StoreFalse`
[INFO] [stdout]   --> src/main.rs:14:59
[INFO] [stdout]    |
[INFO] [stdout] 14 | use argparse::{ArgumentParser, Collect, StoreTrue, Store, StoreFalse};
[INFO] [stdout]    |                                                           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `regex::Regex`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use regex::Regex;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/main.rs:9:26
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{BufReader, BufRead, BufWriter, Write, Read};
[INFO] [stdout]   |                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/main.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let size = f.read_to_end(&mut b);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_path`
[INFO] [stdout]    --> src/main.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |     let file_path = path.parent().unwrap().to_str().unwrap();
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut text = &contents[..];
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_sep`
[INFO] [stdout]   --> src/main.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn is_sep(r: &str) -> bool {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 |         o.write(chunk.as_bytes());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.66s
[INFO] running `Command { std: "docker" "inspect" "e53aff96c22cc09b547d9c5214fd911a148cb028609b71530156820fa76d3fdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e53aff96c22cc09b547d9c5214fd911a148cb028609b71530156820fa76d3fdc", kill_on_drop: false }`
[INFO] [stdout] e53aff96c22cc09b547d9c5214fd911a148cb028609b71530156820fa76d3fdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06a7e7d231cd2634204f48fb2c53b2b2fea0f63bf5543db4d1822db6f4431f50
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "06a7e7d231cd2634204f48fb2c53b2b2fea0f63bf5543db4d1822db6f4431f50", kill_on_drop: false }`
[INFO] [stderr]    Compiling splitter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BufReader`
[INFO] [stdout]  --> src/main.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{BufReader, BufRead, BufWriter, Write, Read};
[INFO] [stdout]   |               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::prelude::*`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StoreFalse`
[INFO] [stdout]   --> src/main.rs:14:59
[INFO] [stdout]    |
[INFO] [stdout] 14 | use argparse::{ArgumentParser, Collect, StoreTrue, Store, StoreFalse};
[INFO] [stdout]    |                                                           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `regex::Regex`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use regex::Regex;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/main.rs:9:26
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::{BufReader, BufRead, BufWriter, Write, Read};
[INFO] [stdout]   |                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/main.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let size = f.read_to_end(&mut b);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_path`
[INFO] [stdout]    --> src/main.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |     let file_path = path.parent().unwrap().to_str().unwrap();
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut text = &contents[..];
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_sep`
[INFO] [stdout]   --> src/main.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn is_sep(r: &str) -> bool {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:178:9
[INFO] [stdout]     |
[INFO] [stdout] 178 |         o.write(chunk.as_bytes());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "06a7e7d231cd2634204f48fb2c53b2b2fea0f63bf5543db4d1822db6f4431f50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06a7e7d231cd2634204f48fb2c53b2b2fea0f63bf5543db4d1822db6f4431f50", kill_on_drop: false }`
[INFO] [stdout] 06a7e7d231cd2634204f48fb2c53b2b2fea0f63bf5543db4d1822db6f4431f50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0a9ab5dba677236b80c1f9f5286d125c157538999abad85aecbaa3f3b960e5ec
[INFO] running `Command { std: "docker" "start" "-a" "0a9ab5dba677236b80c1f9f5286d125c157538999abad85aecbaa3f3b960e5ec", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `BufReader`
[INFO] [stderr]  --> src/main.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::{BufReader, BufRead, BufWriter, Write, Read};
[INFO] [stderr]   |               ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::prelude::*`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::prelude::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `StoreFalse`
[INFO] [stderr]   --> src/main.rs:14:59
[INFO] [stderr]    |
[INFO] [stderr] 14 | use argparse::{ArgumentParser, Collect, StoreTrue, Store, StoreFalse};
[INFO] [stderr]    |                                                           ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `regex::Regex`
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use regex::Regex;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BufRead`
[INFO] [stderr]  --> src/main.rs:9:26
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::{BufReader, BufRead, BufWriter, Write, Read};
[INFO] [stderr]   |                          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size`
[INFO] [stderr]   --> src/main.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |     let size = f.read_to_end(&mut b);
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file_path`
[INFO] [stderr]    --> src/main.rs:137:9
[INFO] [stderr]     |
[INFO] [stderr] 137 |     let file_path = path.parent().unwrap().to_str().unwrap();
[INFO] [stderr]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_path`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |     let mut text = &contents[..];
[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: function is never used: `is_sep`
[INFO] [stderr]   --> src/main.rs:18:4
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn is_sep(r: &str) -> bool {
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:178:9
[INFO] [stderr]     |
[INFO] [stderr] 178 |         o.write(chunk.as_bytes());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/splitter-06249c33a37ec512)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0a9ab5dba677236b80c1f9f5286d125c157538999abad85aecbaa3f3b960e5ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a9ab5dba677236b80c1f9f5286d125c157538999abad85aecbaa3f3b960e5ec", kill_on_drop: false }`
[INFO] [stdout] 0a9ab5dba677236b80c1f9f5286d125c157538999abad85aecbaa3f3b960e5ec