[INFO] cloning repository https://github.com/topazus/head-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/topazus/head-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftopazus%2Fhead-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftopazus%2Fhead-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 72a5e54655e37028b384063e116cc2097eee5ed3
[INFO] testing topazus/head-rs against master#cced03bfd61a304243a34504618ecec86c17063f for pr-154065-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftopazus%2Fhead-rs" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/topazus/head-rs
[INFO] finished tweaking git repo https://github.com/topazus/head-rs
[INFO] tweaked toml for git repo https://github.com/topazus/head-rs written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/topazus/head-rs on toolchain cced03bfd61a304243a34504618ecec86c17063f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cced03bfd61a304243a34504618ecec86c17063f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/topazus/head-rs 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" "+cced03bfd61a304243a34504618ecec86c17063f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded predicates-core v1.0.3
[INFO] [stderr]   Downloaded termtree v0.2.4
[INFO] [stderr]   Downloaded predicates-tree v1.0.5
[INFO] [stderr]   Downloaded clap_lex v0.1.1
[INFO] [stderr]   Downloaded getrandom v0.2.6
[INFO] [stderr]   Downloaded os_str_bytes v6.0.0
[INFO] [stderr]   Downloaded assert_cmd v2.0.4
[INFO] [stderr]   Downloaded textwrap v0.15.0
[INFO] [stderr]   Downloaded indexmap v1.8.1
[INFO] [stderr]   Downloaded regex v1.5.5
[INFO] [stderr]   Downloaded clap v3.1.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+cced03bfd61a304243a34504618ecec86c17063f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e46ad81d786ca3b7a48846238127a97d7d866afdaf18a5f59cf6e5e53f0905c7
[INFO] running `Command { std: "docker" "start" "-a" "e46ad81d786ca3b7a48846238127a97d7d866afdaf18a5f59cf6e5e53f0905c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e46ad81d786ca3b7a48846238127a97d7d866afdaf18a5f59cf6e5e53f0905c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e46ad81d786ca3b7a48846238127a97d7d866afdaf18a5f59cf6e5e53f0905c7", kill_on_drop: false }`
[INFO] [stdout] e46ad81d786ca3b7a48846238127a97d7d866afdaf18a5f59cf6e5e53f0905c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+cced03bfd61a304243a34504618ecec86c17063f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c27e94f9e76c5554e1e8d8d37af249708ba4a96abe43637cb9af5f7e66a7f541
[INFO] running `Command { std: "docker" "start" "-a" "c27e94f9e76c5554e1e8d8d37af249708ba4a96abe43637cb9af5f7e66a7f541", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling os_str_bytes v6.0.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling clap_lex v0.1.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v3.1.12
[INFO] [stderr]    Compiling headr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `files_str`
[INFO] [stdout]   --> src/lib.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let files_str = matches.values_of("files").unwrap().collect::<Vec<&str>>();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_files_str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `files_string`
[INFO] [stdout]   --> src/lib.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let files_string = matches
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_files_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:216:9
[INFO] [stdout]     |
[INFO] [stdout] 216 |     let mut file = std::fs::File::open("Cargo.toml").unwrap();
[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 variable: `bytes_read`
[INFO] [stdout]    --> src/lib.rs:226:9
[INFO] [stdout]     |
[INFO] [stdout] 226 |     let bytes_read = file.read_to_string(&mut contents).unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:231:9
[INFO] [stdout]     |
[INFO] [stdout] 231 |     let mut file = std::fs::File::open("Cargo.toml").unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:232:9
[INFO] [stdout]     |
[INFO] [stdout] 232 |     let mut buf = String::new();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/lib.rs:232:9
[INFO] [stdout]     |
[INFO] [stdout] 232 |     let mut buf = String::new();
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_args` is never used
[INFO] [stdout]   --> src/lib.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn parse_args() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_lines_file` is never used
[INFO] [stdout]    --> src/lib.rs:173:4
[INFO] [stdout]     |
[INFO] [stdout] 173 | fn read_lines_file(file_name: &str) -> Vec<String> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_lines_file2` is never used
[INFO] [stdout]    --> src/lib.rs:183:4
[INFO] [stdout]     |
[INFO] [stdout] 183 | fn read_lines_file2(file_name: &str) -> Result<Vec<String>, Box<dyn Error>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_bytes_from_file` is never used
[INFO] [stdout]    --> src/lib.rs:215:4
[INFO] [stdout]     |
[INFO] [stdout] 215 | fn read_bytes_from_file(bytes: usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_bytes_from_file2` is never used
[INFO] [stdout]    --> src/lib.rs:223:4
[INFO] [stdout]     |
[INFO] [stdout] 223 | fn read_bytes_from_file2(bytes: usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_bytes_from_file3` is never used
[INFO] [stdout]    --> src/lib.rs:230:4
[INFO] [stdout]     |
[INFO] [stdout] 230 | fn read_bytes_from_file3(bytes: usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_positive_int2` is never used
[INFO] [stdout]    --> src/lib.rs:264:4
[INFO] [stdout]     |
[INFO] [stdout] 264 | fn parse_positive_int2(val: &str) -> Result<isize, &str> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_positive_int3` is never used
[INFO] [stdout]    --> src/lib.rs:270:4
[INFO] [stdout]     |
[INFO] [stdout] 270 | fn parse_positive_int3(val: &str) -> Result<isize, &str> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.19s
[INFO] running `Command { std: "docker" "inspect" "c27e94f9e76c5554e1e8d8d37af249708ba4a96abe43637cb9af5f7e66a7f541", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c27e94f9e76c5554e1e8d8d37af249708ba4a96abe43637cb9af5f7e66a7f541", kill_on_drop: false }`
[INFO] [stdout] c27e94f9e76c5554e1e8d8d37af249708ba4a96abe43637cb9af5f7e66a7f541
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+cced03bfd61a304243a34504618ecec86c17063f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f17eb88dda322b4705f06d57641790df71160bbebb76e96ebe39b047834dbafe
[INFO] running `Command { std: "docker" "start" "-a" "f17eb88dda322b4705f06d57641790df71160bbebb76e96ebe39b047834dbafe", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling predicates-core v1.0.3
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling termtree v0.2.4
[INFO] [stderr]    Compiling predicates-tree v1.0.5
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling clap v3.1.12
[INFO] [stderr]    Compiling float-cmp v0.9.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling predicates v2.1.1
[INFO] [stderr]    Compiling headr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `files_str`
[INFO] [stdout]   --> src/lib.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let files_str = matches.values_of("files").unwrap().collect::<Vec<&str>>();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_files_str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `files_string`
[INFO] [stdout]   --> src/lib.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let files_string = matches
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_files_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:216:9
[INFO] [stdout]     |
[INFO] [stdout] 216 |     let mut file = std::fs::File::open("Cargo.toml").unwrap();
[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 variable: `bytes_read`
[INFO] [stdout]    --> src/lib.rs:226:9
[INFO] [stdout]     |
[INFO] [stdout] 226 |     let bytes_read = file.read_to_string(&mut contents).unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:231:9
[INFO] [stdout]     |
[INFO] [stdout] 231 |     let mut file = std::fs::File::open("Cargo.toml").unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:232:9
[INFO] [stdout]     |
[INFO] [stdout] 232 |     let mut buf = String::new();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/lib.rs:232:9
[INFO] [stdout]     |
[INFO] [stdout] 232 |     let mut buf = String::new();
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_args` is never used
[INFO] [stdout]   --> src/lib.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn parse_args() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_lines_file` is never used
[INFO] [stdout]    --> src/lib.rs:173:4
[INFO] [stdout]     |
[INFO] [stdout] 173 | fn read_lines_file(file_name: &str) -> Vec<String> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_lines_file2` is never used
[INFO] [stdout]    --> src/lib.rs:183:4
[INFO] [stdout]     |
[INFO] [stdout] 183 | fn read_lines_file2(file_name: &str) -> Result<Vec<String>, Box<dyn Error>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_bytes_from_file` is never used
[INFO] [stdout]    --> src/lib.rs:215:4
[INFO] [stdout]     |
[INFO] [stdout] 215 | fn read_bytes_from_file(bytes: usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_bytes_from_file2` is never used
[INFO] [stdout]    --> src/lib.rs:223:4
[INFO] [stdout]     |
[INFO] [stdout] 223 | fn read_bytes_from_file2(bytes: usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_bytes_from_file3` is never used
[INFO] [stdout]    --> src/lib.rs:230:4
[INFO] [stdout]     |
[INFO] [stdout] 230 | fn read_bytes_from_file3(bytes: usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_positive_int2` is never used
[INFO] [stdout]    --> src/lib.rs:264:4
[INFO] [stdout]     |
[INFO] [stdout] 264 | fn parse_positive_int2(val: &str) -> Result<isize, &str> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_positive_int3` is never used
[INFO] [stdout]    --> src/lib.rs:270:4
[INFO] [stdout]     |
[INFO] [stdout] 270 | fn parse_positive_int3(val: &str) -> Result<isize, &str> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling assert_cmd v2.0.4
[INFO] [stdout] warning: unused variable: `files_str`
[INFO] [stdout]   --> src/lib.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let files_str = matches.values_of("files").unwrap().collect::<Vec<&str>>();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_files_str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `files_string`
[INFO] [stdout]   --> src/lib.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let files_string = matches
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_files_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:216:9
[INFO] [stdout]     |
[INFO] [stdout] 216 |     let mut file = std::fs::File::open("Cargo.toml").unwrap();
[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 variable: `bytes_read`
[INFO] [stdout]    --> src/lib.rs:226:9
[INFO] [stdout]     |
[INFO] [stdout] 226 |     let bytes_read = file.read_to_string(&mut contents).unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:231:9
[INFO] [stdout]     |
[INFO] [stdout] 231 |     let mut file = std::fs::File::open("Cargo.toml").unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:232:9
[INFO] [stdout]     |
[INFO] [stdout] 232 |     let mut buf = String::new();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/lib.rs:232:9
[INFO] [stdout]     |
[INFO] [stdout] 232 |     let mut buf = String::new();
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_args` is never used
[INFO] [stdout]   --> src/lib.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn parse_args() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_bytes_from_file` is never used
[INFO] [stdout]    --> src/lib.rs:215:4
[INFO] [stdout]     |
[INFO] [stdout] 215 | fn read_bytes_from_file(bytes: usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_bytes_from_file2` is never used
[INFO] [stdout]    --> src/lib.rs:223:4
[INFO] [stdout]     |
[INFO] [stdout] 223 | fn read_bytes_from_file2(bytes: usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_bytes_from_file3` is never used
[INFO] [stdout]    --> src/lib.rs:230:4
[INFO] [stdout]     |
[INFO] [stdout] 230 | fn read_bytes_from_file3(bytes: usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 17.08s
[INFO] running `Command { std: "docker" "inspect" "f17eb88dda322b4705f06d57641790df71160bbebb76e96ebe39b047834dbafe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f17eb88dda322b4705f06d57641790df71160bbebb76e96ebe39b047834dbafe", kill_on_drop: false }`
[INFO] [stdout] f17eb88dda322b4705f06d57641790df71160bbebb76e96ebe39b047834dbafe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+cced03bfd61a304243a34504618ecec86c17063f" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bfe95f8d77d878bc97127e9b35ddef8bfeacb90881354d08f5e2fe76038676c3
[INFO] running `Command { std: "docker" "start" "-a" "bfe95f8d77d878bc97127e9b35ddef8bfeacb90881354d08f5e2fe76038676c3", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `files_str`
[INFO] [stderr]   --> src/lib.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let files_str = matches.values_of("files").unwrap().collect::<Vec<&str>>();
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_files_str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `files_string`
[INFO] [stderr]   --> src/lib.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let files_string = matches
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_files_string`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:216:9
[INFO] [stderr]     |
[INFO] [stderr] 216 |     let mut file = std::fs::File::open("Cargo.toml").unwrap();
[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 variable: `bytes_read`
[INFO] [stderr]    --> src/lib.rs:226:9
[INFO] [stderr]     |
[INFO] [stderr] 226 |     let bytes_read = file.read_to_string(&mut contents).unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:231:9
[INFO] [stderr]     |
[INFO] [stderr] 231 |     let mut file = std::fs::File::open("Cargo.toml").unwrap();
[INFO] [stderr]     |         ----^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:232:9
[INFO] [stderr]     |
[INFO] [stderr] 232 |     let mut buf = String::new();
[INFO] [stderr]     |         ----^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]    --> src/lib.rs:232:9
[INFO] [stderr]     |
[INFO] [stderr] 232 |     let mut buf = String::new();
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stderr] 
[INFO] [stderr] warning: function `parse_args` is never used
[INFO] [stderr]   --> src/lib.rs:18:4
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn parse_args() {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_lines_file` is never used
[INFO] [stderr]    --> src/lib.rs:173:4
[INFO] [stderr]     |
[INFO] [stderr] 173 | fn read_lines_file(file_name: &str) -> Vec<String> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_lines_file2` is never used
[INFO] [stderr]    --> src/lib.rs:183:4
[INFO] [stderr]     |
[INFO] [stderr] 183 | fn read_lines_file2(file_name: &str) -> Result<Vec<String>, Box<dyn Error>> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_bytes_from_file` is never used
[INFO] [stderr]    --> src/lib.rs:215:4
[INFO] [stderr]     |
[INFO] [stderr] 215 | fn read_bytes_from_file(bytes: usize) {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_bytes_from_file2` is never used
[INFO] [stderr]    --> src/lib.rs:223:4
[INFO] [stderr]     |
[INFO] [stderr] 223 | fn read_bytes_from_file2(bytes: usize) {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_bytes_from_file3` is never used
[INFO] [stderr]    --> src/lib.rs:230:4
[INFO] [stderr]     |
[INFO] [stderr] 230 | fn read_bytes_from_file3(bytes: usize) {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `parse_positive_int2` is never used
[INFO] [stderr]    --> src/lib.rs:264:4
[INFO] [stderr]     |
[INFO] [stderr] 264 | fn parse_positive_int2(val: &str) -> Result<isize, &str> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `parse_positive_int3` is never used
[INFO] [stderr]    --> src/lib.rs:270:4
[INFO] [stderr]     |
[INFO] [stderr] 270 | fn parse_positive_int3(val: &str) -> Result<isize, &str> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `headr` (lib) generated 15 warnings (run `cargo fix --lib -p headr` to apply 7 suggestions)
[INFO] [stderr] warning: `headr` (lib test) generated 11 warnings (11 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/headr-41bc68921909342d)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_parse_positive_int3 ... ok
[INFO] [stdout] test test_parse_positive_int ... ok
[INFO] [stdout] test test_parse_positive_int2 ... ok
[INFO] [stdout] test test_read_lines_file ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/headr-8d1dc0c006c16a90)
[INFO] [stdout] 
[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] [stderr]      Running tests/cli.rs (/opt/rustwide/target/debug/deps/cli-9d10897977a53fe9)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test long_flag ... ok
[INFO] [stdout] test test_random_string ... ok
[INFO] [stdout] test test_bad_bytes ... ok
[INFO] [stdout] test test_bad_lines ... ok
[INFO] [stdout] test test_bytes ... FAILED
[INFO] [stdout] test test_empty ... FAILED
[INFO] [stdout] test read_lines_from_files ... FAILED
[INFO] [stdout] test read_lines ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test_bytes stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'test_bytes' (30) panicked at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5:
[INFO] [stdout] Unexpected failure.
[INFO] [stdout] code-101
[INFO] [stdout] stderr=```"\nthread \'main\' (47) panicked at src/lib.rs:95:10:\nMust use `_os` lookups with `Arg::allow_invalid_utf8` at `bytes`\nstack backtrace:\n   0:     0x632aca24c878 - std[929523f510218772]::backtrace_rs::backtrace::libunwind::trace\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9\n   1:     0x632aca24c878 - std[929523f510218772]::backtrace_rs::backtrace::trace_unsynchronized::<std[929523f510218772]::sys::backtrace::_print_fmt::{closure#1}>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14\n   2:     0x632aca24c878 - std[929523f510218772]::sys::backtrace::_print_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:74:9\n   3:     0x632aca24c878 - <<std[929523f510218772]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[28b146924c2f19c6]::fmt::Display>::fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:44:26\n   4:     0x632aca2601aa - <core[28b146924c2f19c6]::fmt::rt::Argument>::fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/fmt/rt.rs:152:76\n   5:     0x632aca2601aa - core[28b146924c2f19c6]::fmt::write\n   6:     0x632aca251f82 - std[929523f510218772]::io::default_write_fmt::<std[929523f510218772]::sys::stdio::unix::Stderr>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:622:11\n   7:     0x632aca251f82 - <std[929523f510218772]::sys::stdio::unix::Stderr as std[929523f510218772]::io::Write>::write_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:1977:13\n   8:     0x632aca2372d6 - <std[929523f510218772]::sys::backtrace::BacktraceLock>::print\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:47:9\n   9:     0x632aca2372d6 - std[929523f510218772]::panicking::default_hook::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:292:27\n  10:     0x632aca2483b1 - std[929523f510218772]::panicking::default_hook\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:319:9\n  11:     0x632aca24856b - std[929523f510218772]::panicking::panic_with_hook\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:825:13\n  12:     0x632aca237392 - std[929523f510218772]::panicking::panic_handler::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:698:13\n  13:     0x632aca22c579 - std[929523f510218772]::sys::backtrace::__rust_end_short_backtrace::<std[929523f510218772]::panicking::panic_handler::{closure#0}, !>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:182:18\n  14:     0x632aca237d7d - __rustc[acf6043c977865fb]::rust_begin_unwind\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:689:5\n  15:     0x632aca26093c - core[28b146924c2f19c6]::panicking::panic_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panicking.rs:80:14\n  16:     0x632aca0ff32e - clap[e825e3c55a8eb963]::parse::matches::arg_matches::assert_utf8_validation\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/clap-3.1.12/src/parse/matches/arg_matches.rs:1408:5\n  17:     0x632aca0f8f9b - <clap[e825e3c55a8eb963]::parse::matches::arg_matches::ArgMatches>::value_of::<&str>\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/clap-3.1.12/src/parse/matches/arg_matches.rs:145:9\n  18:     0x632aca0fe044 - headr[fa315824de81b0aa]::get_args\n                               at /opt/rustwide/workdir/src/lib.rs:95:10\n  19:     0x632aca0f8a92 - headr[98ee153358eff5ee]::main\n                               at /opt/rustwide/workdir/src/main.rs:2:21\n  20:     0x632aca0f8bab - <fn() as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5\n  21:     0x632aca0f8a1e - std[929523f510218772]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:166:18\n  22:     0x632aca0f8a41 - std[929523f510218772]::rt::lang_start::<()>::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:206:18\n  23:     0x632aca2477f7 - <&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:287:21\n  24:     0x632aca2477f7 - std[929523f510218772]::panicking::catch_unwind::do_call::<&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync, i32>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40\n  25:     0x632aca2477f7 - std[929523f510218772]::panicking::catch_unwind::<i32, &dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19\n  26:     0x632aca2477f7 - std[929523f510218772]::panic::catch_unwind::<&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync, i32>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14\n  27:     0x632aca2477f7 - std[929523f510218772]::rt::lang_start_internal::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:175:24\n  28:     0x632aca2477f7 - std[929523f510218772]::panicking::catch_unwind::do_call::<std[929523f510218772]::rt::lang_start_internal::{closure#0}, isize>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40\n  29:     0x632aca2477f7 - std[929523f510218772]::panicking::catch_unwind::<isize, std[929523f510218772]::rt::lang_start_internal::{closure#0}>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19\n  30:     0x632aca2477f7 - std[929523f510218772]::panic::catch_unwind::<std[929523f510218772]::rt::lang_start_internal::{closure#0}, isize>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14\n  31:     0x632aca2477f7 - std[929523f510218772]::rt::lang_start_internal\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:171:5\n  32:     0x632aca0f8a07 - std[929523f510218772]::rt::lang_start::<()>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:205:5\n  33:     0x632aca0f8c3e - main\n  34:     0x7b15951e11ca - <unknown>\n  35:     0x7b15951e128b - __libc_start_main\n  36:     0x632aca0f8865 - _start\n  37:                0x0 - <unknown>\n"```
[INFO] [stdout] command=`"/opt/rustwide/target/debug/headr" "-c=3" "tests/inputs/unicodes.txt"`
[INFO] [stdout] code=101
[INFO] [stdout] stdout=""
[INFO] [stdout] stderr="\nthread \'main\' (47) panicked at src/lib.rs:95:10:\nMust use `_os` lookups with `Arg::allow_invalid_utf8` at `bytes`\nstack backtrace:\n   0:     0x632aca24c878 - std[929523f510218772]::backtrace_rs::backtrace::libunwind::trace\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9\n   1:     0x632aca24c878 - std[929523f510218772]::backtrace_rs::backtrace::trace_unsynchronized::<std[929523f510218772]::sys::backtrace::_print_fmt::{closure#1}>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14\n   2:     0x632aca24c878 - std[929523f510218772]::sys::backtrace::_print_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:74:9\n   3:     0x632aca24c878 - <<std[929523f510218772]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[28b146924c2f19c6]::fmt::Display>::fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:44:26\n   4:     0x632aca2601aa - <core[28b146924c2f19c6]::fmt::rt::Argument>::fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/fmt/rt.rs:152:76\n   5:     0x632aca2601aa - core[28b146924c2f19c6]::fmt::write\n   6:     0x632aca251f82 - std[929523f510218772]::io::default_write_fmt::<std[929523f510218772]::sys::stdio::unix::Stderr>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:622:11\n   7:     0x632aca251f82 - <std[929523f510218772]::sys::stdio::unix::Stderr as std[929523f510218772]::io::Write>::write_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:1977:13\n   8:     0x632aca2372d6 - <std[929523f510218772]::sys::backtrace::BacktraceLock>::print\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:47:9\n   9:     0x632aca2372d6 - std[929523f510218772]::panicking::default_hook::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:292:27\n  10:     0x632aca2483b1 - std[929523f510218772]::panicking::default_hook\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:319:9\n  11:     0x632aca24856b - std[929523f510218772]::panicking::panic_with_hook\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:825:13\n  12:     0x632aca237392 - std[929523f510218772]::panicking::panic_handler::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:698:13\n  13:     0x632aca22c579 - std[929523f510218772]::sys::backtrace::__rust_end_short_backtrace::<std[929523f510218772]::panicking::panic_handler::{closure#0}, !>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:182:18\n  14:     0x632aca237d7d - __rustc[acf6043c977865fb]::rust_begin_unwind\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:689:5\n  15:     0x632aca26093c - core[28b146924c2f19c6]::panicking::panic_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panicking.rs:80:14\n  16:     0x632aca0ff32e - clap[e825e3c55a8eb963]::parse::matches::arg_matches::assert_utf8_validation\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/clap-3.1.12/src/parse/matches/arg_matches.rs:1408:5\n  17:     0x632aca0f8f9b - <clap[e825e3c55a8eb963]::parse::matches::arg_matches::ArgMatches>::value_of::<&str>\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/clap-3.1.12/src/parse/matches/arg_matches.rs:145:9\n  18:     0x632aca0fe044 - headr[fa315824de81b0aa]::get_args\n                               at /opt/rustwide/workdir/src/lib.rs:95:10\n  19:     0x632aca0f8a92 - headr[98ee153358eff5ee]::main\n                               at /opt/rustwide/workdir/src/main.rs:2:21\n  20:     0x632aca0f8bab - <fn() as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5\n  21:     0x632aca0f8a1e - std[929523f510218772]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:166:18\n  22:     0x632aca0f8a41 - std[929523f510218772]::rt::lang_start::<()>::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:206:18\n  23:     0x632aca2477f7 - <&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:287:21\n  24:     0x632aca2477f7 - std[929523f510218772]::panicking::catch_unwind::do_call::<&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync, i32>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40\n  25:     0x632aca2477f7 - std[929523f510218772]::panicking::catch_unwind::<i32, &dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19\n  26:     0x632aca2477f7 - std[929523f510218772]::panic::catch_unwind::<&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync, i32>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14\n  27:     0x632aca2477f7 - std[929523f510218772]::rt::lang_start_internal::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:175:24\n  28:     0x632aca2477f7 - std[929523f510218772]::panicking::catch_unwind::do_call::<std[929523f510218772]::rt::lang_start_internal::{closure#0}, isize>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40\n  29:     0x632aca2477f7 - std[929523f510218772]::panicking::catch_unwind::<isize, std[929523f510218772]::rt::lang_start_internal::{closure#0}>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19\n  30:     0x632aca2477f7 - std[929523f510218772]::panic::catch_unwind::<std[929523f510218772]::rt::lang_start_internal::{closure#0}, isize>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14\n  31:     0x632aca2477f7 - std[929523f510218772]::rt::lang_start_internal\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:171:5\n  32:     0x632aca0f8a07 - std[929523f510218772]::rt::lang_start::<()>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:205:5\n  33:     0x632aca0f8c3e - main\n  34:     0x7b15951e11ca - <unknown>\n  35:     0x7b15951e128b - __libc_start_main\n  36:     0x632aca0f8865 - _start\n  37:                0x0 - <unknown>\n"
[INFO] [stdout] 
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x602d74497a58 - std[929523f510218772]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x602d74497a58 - std[929523f510218772]::backtrace_rs::backtrace::trace_unsynchronized::<std[929523f510218772]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x602d74497a58 - std[929523f510218772]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x602d74497a58 - <<std[929523f510218772]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[28b146924c2f19c6]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x602d744ad86a - <core[28b146924c2f19c6]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x602d744ad86a - core[28b146924c2f19c6]::fmt::write
[INFO] [stdout]    6:     0x602d7449d632 - std[929523f510218772]::io::default_write_fmt::<alloc[95e62e727ddf147d]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:622:11
[INFO] [stdout]    7:     0x602d7449d632 - <alloc[95e62e727ddf147d]::vec::Vec<u8> as std[929523f510218772]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:1977:13
[INFO] [stdout]    8:     0x602d74476346 - <std[929523f510218772]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x602d74476346 - std[929523f510218772]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x602d7448ff29 - std[929523f510218772]::panicking::default_hook
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x602d743f418c - <alloc[95e62e727ddf147d]::boxed::Box<dyn for<'a, 'b> core[28b146924c2f19c6]::ops::function::Fn<(&'a std[929523f510218772]::panic::PanicHookInfo<'b>,), Output = ()> + core[28b146924c2f19c6]::marker::Sync + core[28b146924c2f19c6]::marker::Send> as core[28b146924c2f19c6]::ops::function::Fn<(&std[929523f510218772]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/alloc/src/boxed.rs:2291:9
[INFO] [stdout]   12:     0x602d743f418c - test[6ec0502068880816]::test_main_inner::<test[6ec0502068880816]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x602d744900e2 - <alloc[95e62e727ddf147d]::boxed::Box<dyn for<'a, 'b> core[28b146924c2f19c6]::ops::function::Fn<(&'a std[929523f510218772]::panic::PanicHookInfo<'b>,), Output = ()> + core[28b146924c2f19c6]::marker::Sync + core[28b146924c2f19c6]::marker::Send> as core[28b146924c2f19c6]::ops::function::Fn<(&std[929523f510218772]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/alloc/src/boxed.rs:2291:9
[INFO] [stdout]   14:     0x602d744900e2 - std[929523f510218772]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x602d74476402 - std[929523f510218772]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x602d7446b609 - std[929523f510218772]::sys::backtrace::__rust_end_short_backtrace::<std[929523f510218772]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x602d7447711d - __rustc[acf6043c977865fb]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x602d744adffc - core[28b146924c2f19c6]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x602d7439aaf8 - core[28b146924c2f19c6]::panicking::panic_display::<assert_cmd[a9b722e4b7e5e85e]::assert::AssertError>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panicking.rs:259:5
[INFO] [stdout]   20:     0x602d743a0877 - <assert_cmd[a9b722e4b7e5e85e]::assert::AssertError>::panic::<assert_cmd[a9b722e4b7e5e85e]::assert::Assert>
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/assert_cmd-2.0.4/src/assert.rs:1036:9
[INFO] [stdout]   21:     0x602d743a5f87 - <<assert_cmd[a9b722e4b7e5e85e]::assert::AssertError>::panic<assert_cmd[a9b722e4b7e5e85e]::assert::Assert> as core[28b146924c2f19c6]::ops::function::FnOnce<(assert_cmd[a9b722e4b7e5e85e]::assert::AssertError,)>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   22:     0x602d7439fd5a - <core[28b146924c2f19c6]::result::Result<assert_cmd[a9b722e4b7e5e85e]::assert::Assert, assert_cmd[a9b722e4b7e5e85e]::assert::AssertError>>::unwrap_or_else::<<assert_cmd[a9b722e4b7e5e85e]::assert::AssertError>::panic<assert_cmd[a9b722e4b7e5e85e]::assert::Assert>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/result.rs:1622:23
[INFO] [stdout]   23:     0x602d743a3860 - <assert_cmd[a9b722e4b7e5e85e]::assert::Assert>::success
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/assert_cmd-2.0.4/src/assert.rs:156:28
[INFO] [stdout]   24:     0x602d74396b58 - cli[d1a788c6aa83b607]::run_read_file
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:63:10
[INFO] [stdout]   25:     0x602d7439710e - cli[d1a788c6aa83b607]::test_bytes
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:132:5
[INFO] [stdout]   26:     0x602d74396637 - cli[d1a788c6aa83b607]::test_bytes::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:131:16
[INFO] [stdout]   27:     0x602d74398f56 - <cli[d1a788c6aa83b607]::test_bytes::{closure#0} as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   28:     0x602d743e726b - <fn() -> core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String> as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   29:     0x602d743e726b - test[6ec0502068880816]::__rust_begin_short_backtrace::<core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String>, fn() -> core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:724:18
[INFO] [stdout]   30:     0x602d743f4ae5 - test[6ec0502068880816]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:747:74
[INFO] [stdout]   31:     0x602d743f4ae5 - <core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<test[6ec0502068880816]::run_test_in_process::{closure#0}> as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   32:     0x602d743f4ae5 - std[929523f510218772]::panicking::catch_unwind::do_call::<core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<test[6ec0502068880816]::run_test_in_process::{closure#0}>, core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40
[INFO] [stdout]   33:     0x602d743f4ae5 - std[929523f510218772]::panicking::catch_unwind::<core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String>, core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<test[6ec0502068880816]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19
[INFO] [stdout]   34:     0x602d743f4ae5 - std[929523f510218772]::panic::catch_unwind::<core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<test[6ec0502068880816]::run_test_in_process::{closure#0}>, core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14
[INFO] [stdout]   35:     0x602d743f4ae5 - test[6ec0502068880816]::run_test_in_process
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:747:27
[INFO] [stdout]   36:     0x602d743f4ae5 - test[6ec0502068880816]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:668:43
[INFO] [stdout]   37:     0x602d743ef644 - test[6ec0502068880816]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:698:41
[INFO] [stdout]   38:     0x602d743ef644 - std[929523f510218772]::sys::backtrace::__rust_begin_short_backtrace::<test[6ec0502068880816]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   39:     0x602d743f7b62 - std[929523f510218772]::thread::lifecycle::spawn_unchecked::<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   40:     0x602d743f7b62 - <core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<std[929523f510218772]::thread::lifecycle::spawn_unchecked<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   41:     0x602d743f7b62 - std[929523f510218772]::panicking::catch_unwind::do_call::<core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<std[929523f510218772]::thread::lifecycle::spawn_unchecked<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40
[INFO] [stdout]   42:     0x602d743f7b62 - std[929523f510218772]::panicking::catch_unwind::<(), core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<std[929523f510218772]::thread::lifecycle::spawn_unchecked<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19
[INFO] [stdout]   43:     0x602d743f7b62 - std[929523f510218772]::panic::catch_unwind::<core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<std[929523f510218772]::thread::lifecycle::spawn_unchecked<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14
[INFO] [stdout]   44:     0x602d743f7b62 - std[929523f510218772]::thread::lifecycle::spawn_unchecked::<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   45:     0x602d743f7b62 - <std[929523f510218772]::thread::lifecycle::spawn_unchecked<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1} as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   46:     0x602d7449733f - <alloc[95e62e727ddf147d]::boxed::Box<dyn core[28b146924c2f19c6]::ops::function::FnOnce<(), Output = ()> + core[28b146924c2f19c6]::marker::Send> as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/alloc/src/boxed.rs:2277:9
[INFO] [stdout]   47:     0x602d7449733f - <std[929523f510218772]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   48:     0x7f475a5d8aa4 - <unknown>
[INFO] [stdout]   49:     0x7f475a665a64 - clone
[INFO] [stdout]   50:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- test_empty stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'test_empty' (32) panicked at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5:
[INFO] [stdout] Unexpected failure.
[INFO] [stdout] code-101
[INFO] [stdout] stderr=```"\nthread \'main\' (36) panicked at src/lib.rs:88:10:\nMust use `_os` lookups with `Arg::allow_invalid_utf8` at `lines`\nstack backtrace:\n   0:     0x5d12b3e65878 - std[929523f510218772]::backtrace_rs::backtrace::libunwind::trace\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9\n   1:     0x5d12b3e65878 - std[929523f510218772]::backtrace_rs::backtrace::trace_unsynchronized::<std[929523f510218772]::sys::backtrace::_print_fmt::{closure#1}>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14\n   2:     0x5d12b3e65878 - std[929523f510218772]::sys::backtrace::_print_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:74:9\n   3:     0x5d12b3e65878 - <<std[929523f510218772]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[28b146924c2f19c6]::fmt::Display>::fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:44:26\n   4:     0x5d12b3e791aa - <core[28b146924c2f19c6]::fmt::rt::Argument>::fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/fmt/rt.rs:152:76\n   5:     0x5d12b3e791aa - core[28b146924c2f19c6]::fmt::write\n   6:     0x5d12b3e6af82 - std[929523f510218772]::io::default_write_fmt::<std[929523f510218772]::sys::stdio::unix::Stderr>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:622:11\n   7:     0x5d12b3e6af82 - <std[929523f510218772]::sys::stdio::unix::Stderr as std[929523f510218772]::io::Write>::write_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:1977:13\n   8:     0x5d12b3e502d6 - <std[929523f510218772]::sys::backtrace::BacktraceLock>::print\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:47:9\n   9:     0x5d12b3e502d6 - std[929523f510218772]::panicking::default_hook::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:292:27\n  10:     0x5d12b3e613b1 - std[929523f510218772]::panicking::default_hook\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:319:9\n  11:     0x5d12b3e6156b - std[929523f510218772]::panicking::panic_with_hook\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:825:13\n  12:     0x5d12b3e50392 - std[929523f510218772]::panicking::panic_handler::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:698:13\n  13:     0x5d12b3e45579 - std[929523f510218772]::sys::backtrace::__rust_end_short_backtrace::<std[929523f510218772]::panicking::panic_handler::{closure#0}, !>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:182:18\n  14:     0x5d12b3e50d7d - __rustc[acf6043c977865fb]::rust_begin_unwind\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:689:5\n  15:     0x5d12b3e7993c - core[28b146924c2f19c6]::panicking::panic_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panicking.rs:80:14\n  16:     0x5d12b3d1832e - clap[e825e3c55a8eb963]::parse::matches::arg_matches::assert_utf8_validation\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/clap-3.1.12/src/parse/matches/arg_matches.rs:1408:5\n  17:     0x5d12b3d11f9b - <clap[e825e3c55a8eb963]::parse::matches::arg_matches::ArgMatches>::value_of::<&str>\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/clap-3.1.12/src/parse/matches/arg_matches.rs:145:9\n  18:     0x5d12b3d16e2c - headr[fa315824de81b0aa]::get_args\n                               at /opt/rustwide/workdir/src/lib.rs:88:10\n  19:     0x5d12b3d11a92 - headr[98ee153358eff5ee]::main\n                               at /opt/rustwide/workdir/src/main.rs:2:21\n  20:     0x5d12b3d11bab - <fn() as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5\n  21:     0x5d12b3d11a1e - std[929523f510218772]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:166:18\n  22:     0x5d12b3d11a41 - std[929523f510218772]::rt::lang_start::<()>::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:206:18\n  23:     0x5d12b3e607f7 - <&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:287:21\n  24:     0x5d12b3e607f7 - std[929523f510218772]::panicking::catch_unwind::do_call::<&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync, i32>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40\n  25:     0x5d12b3e607f7 - std[929523f510218772]::panicking::catch_unwind::<i32, &dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19\n  26:     0x5d12b3e607f7 - std[929523f510218772]::panic::catch_unwind::<&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync, i32>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14\n  27:     0x5d12b3e607f7 - std[929523f510218772]::rt::lang_start_internal::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:175:24\n  28:     0x5d12b3e607f7 - std[929523f510218772]::panicking::catch_unwind::do_call::<std[929523f510218772]::rt::lang_start_internal::{closure#0}, isize>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40\n  29:     0x5d12b3e607f7 - std[929523f510218772]::panicking::catch_unwind::<isize, std[929523f510218772]::rt::lang_start_internal::{closure#0}>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19\n  30:     0x5d12b3e607f7 - std[929523f510218772]::panic::catch_unwind::<std[929523f510218772]::rt::lang_start_internal::{closure#0}, isize>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14\n  31:     0x5d12b3e607f7 - std[929523f510218772]::rt::lang_start_internal\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:171:5\n  32:     0x5d12b3d11a07 - std[929523f510218772]::rt::lang_start::<()>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:205:5\n  33:     0x5d12b3d11c3e - main\n  34:     0x7393290311ca - <unknown>\n  35:     0x73932903128b - __libc_start_main\n  36:     0x5d12b3d11865 - _start\n  37:                0x0 - <unknown>\n"```
[INFO] [stdout] command=`"/opt/rustwide/target/debug/headr" "-n=2" "tests/inputs/empty.txt"`
[INFO] [stdout] code=101
[INFO] [stdout] stdout=""
[INFO] [stdout] stderr="\nthread \'main\' (36) panicked at src/lib.rs:88:10:\nMust use `_os` lookups with `Arg::allow_invalid_utf8` at `lines`\nstack backtrace:\n   0:     0x5d12b3e65878 - std[929523f510218772]::backtrace_rs::backtrace::libunwind::trace\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9\n   1:     0x5d12b3e65878 - std[929523f510218772]::backtrace_rs::backtrace::trace_unsynchronized::<std[929523f510218772]::sys::backtrace::_print_fmt::{closure#1}>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14\n   2:     0x5d12b3e65878 - std[929523f510218772]::sys::backtrace::_print_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:74:9\n   3:     0x5d12b3e65878 - <<std[929523f510218772]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[28b146924c2f19c6]::fmt::Display>::fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:44:26\n   4:     0x5d12b3e791aa - <core[28b146924c2f19c6]::fmt::rt::Argument>::fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/fmt/rt.rs:152:76\n   5:     0x5d12b3e791aa - core[28b146924c2f19c6]::fmt::write\n   6:     0x5d12b3e6af82 - std[929523f510218772]::io::default_write_fmt::<std[929523f510218772]::sys::stdio::unix::Stderr>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:622:11\n   7:     0x5d12b3e6af82 - <std[929523f510218772]::sys::stdio::unix::Stderr as std[929523f510218772]::io::Write>::write_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:1977:13\n   8:     0x5d12b3e502d6 - <std[929523f510218772]::sys::backtrace::BacktraceLock>::print\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:47:9\n   9:     0x5d12b3e502d6 - std[929523f510218772]::panicking::default_hook::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:292:27\n  10:     0x5d12b3e613b1 - std[929523f510218772]::panicking::default_hook\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:319:9\n  11:     0x5d12b3e6156b - std[929523f510218772]::panicking::panic_with_hook\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:825:13\n  12:     0x5d12b3e50392 - std[929523f510218772]::panicking::panic_handler::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:698:13\n  13:     0x5d12b3e45579 - std[929523f510218772]::sys::backtrace::__rust_end_short_backtrace::<std[929523f510218772]::panicking::panic_handler::{closure#0}, !>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:182:18\n  14:     0x5d12b3e50d7d - __rustc[acf6043c977865fb]::rust_begin_unwind\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:689:5\n  15:     0x5d12b3e7993c - core[28b146924c2f19c6]::panicking::panic_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panicking.rs:80:14\n  16:     0x5d12b3d1832e - clap[e825e3c55a8eb963]::parse::matches::arg_matches::assert_utf8_validation\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/clap-3.1.12/src/parse/matches/arg_matches.rs:1408:5\n  17:     0x5d12b3d11f9b - <clap[e825e3c55a8eb963]::parse::matches::arg_matches::ArgMatches>::value_of::<&str>\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/clap-3.1.12/src/parse/matches/arg_matches.rs:145:9\n  18:     0x5d12b3d16e2c - headr[fa315824de81b0aa]::get_args\n                               at /opt/rustwide/workdir/src/lib.rs:88:10\n  19:     0x5d12b3d11a92 - headr[98ee153358eff5ee]::main\n                               at /opt/rustwide/workdir/src/main.rs:2:21\n  20:     0x5d12b3d11bab - <fn() as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5\n  21:     0x5d12b3d11a1e - std[929523f510218772]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:166:18\n  22:     0x5d12b3d11a41 - std[929523f510218772]::rt::lang_start::<()>::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:206:18\n  23:     0x5d12b3e607f7 - <&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:287:21\n  24:     0x5d12b3e607f7 - std[929523f510218772]::panicking::catch_unwind::do_call::<&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync, i32>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40\n  25:     0x5d12b3e607f7 - std[929523f510218772]::panicking::catch_unwind::<i32, &dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19\n  26:     0x5d12b3e607f7 - std[929523f510218772]::panic::catch_unwind::<&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync, i32>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14\n  27:     0x5d12b3e607f7 - std[929523f510218772]::rt::lang_start_internal::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:175:24\n  28:     0x5d12b3e607f7 - std[929523f510218772]::panicking::catch_unwind::do_call::<std[929523f510218772]::rt::lang_start_internal::{closure#0}, isize>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40\n  29:     0x5d12b3e607f7 - std[929523f510218772]::panicking::catch_unwind::<isize, std[929523f510218772]::rt::lang_start_internal::{closure#0}>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19\n  30:     0x5d12b3e607f7 - std[929523f510218772]::panic::catch_unwind::<std[929523f510218772]::rt::lang_start_internal::{closure#0}, isize>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14\n  31:     0x5d12b3e607f7 - std[929523f510218772]::rt::lang_start_internal\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:171:5\n  32:     0x5d12b3d11a07 - std[929523f510218772]::rt::lang_start::<()>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:205:5\n  33:     0x5d12b3d11c3e - main\n  34:     0x7393290311ca - <unknown>\n  35:     0x73932903128b - __libc_start_main\n  36:     0x5d12b3d11865 - _start\n  37:                0x0 - <unknown>\n"
[INFO] [stdout] 
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x602d74497a58 - std[929523f510218772]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x602d74497a58 - std[929523f510218772]::backtrace_rs::backtrace::trace_unsynchronized::<std[929523f510218772]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x602d74497a58 - std[929523f510218772]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x602d74497a58 - <<std[929523f510218772]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[28b146924c2f19c6]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x602d744ad86a - <core[28b146924c2f19c6]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x602d744ad86a - core[28b146924c2f19c6]::fmt::write
[INFO] [stdout]    6:     0x602d7449d632 - std[929523f510218772]::io::default_write_fmt::<alloc[95e62e727ddf147d]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:622:11
[INFO] [stdout]    7:     0x602d7449d632 - <alloc[95e62e727ddf147d]::vec::Vec<u8> as std[929523f510218772]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:1977:13
[INFO] [stdout]    8:     0x602d74476346 - <std[929523f510218772]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x602d74476346 - std[929523f510218772]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x602d7448ff29 - std[929523f510218772]::panicking::default_hook
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x602d743f418c - <alloc[95e62e727ddf147d]::boxed::Box<dyn for<'a, 'b> core[28b146924c2f19c6]::ops::function::Fn<(&'a std[929523f510218772]::panic::PanicHookInfo<'b>,), Output = ()> + core[28b146924c2f19c6]::marker::Sync + core[28b146924c2f19c6]::marker::Send> as core[28b146924c2f19c6]::ops::function::Fn<(&std[929523f510218772]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/alloc/src/boxed.rs:2291:9
[INFO] [stdout]   12:     0x602d743f418c - test[6ec0502068880816]::test_main_inner::<test[6ec0502068880816]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x602d744900e2 - <alloc[95e62e727ddf147d]::boxed::Box<dyn for<'a, 'b> core[28b146924c2f19c6]::ops::function::Fn<(&'a std[929523f510218772]::panic::PanicHookInfo<'b>,), Output = ()> + core[28b146924c2f19c6]::marker::Sync + core[28b146924c2f19c6]::marker::Send> as core[28b146924c2f19c6]::ops::function::Fn<(&std[929523f510218772]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/alloc/src/boxed.rs:2291:9
[INFO] [stdout]   14:     0x602d744900e2 - std[929523f510218772]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x602d74476402 - std[929523f510218772]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x602d7446b609 - std[929523f510218772]::sys::backtrace::__rust_end_short_backtrace::<std[929523f510218772]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x602d7447711d - __rustc[acf6043c977865fb]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x602d744adffc - core[28b146924c2f19c6]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x602d7439aaf8 - core[28b146924c2f19c6]::panicking::panic_display::<assert_cmd[a9b722e4b7e5e85e]::assert::AssertError>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panicking.rs:259:5
[INFO] [stdout]   20:     0x602d743a0877 - <assert_cmd[a9b722e4b7e5e85e]::assert::AssertError>::panic::<assert_cmd[a9b722e4b7e5e85e]::assert::Assert>
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/assert_cmd-2.0.4/src/assert.rs:1036:9
[INFO] [stdout]   21:     0x602d743a5f87 - <<assert_cmd[a9b722e4b7e5e85e]::assert::AssertError>::panic<assert_cmd[a9b722e4b7e5e85e]::assert::Assert> as core[28b146924c2f19c6]::ops::function::FnOnce<(assert_cmd[a9b722e4b7e5e85e]::assert::AssertError,)>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   22:     0x602d7439fd5a - <core[28b146924c2f19c6]::result::Result<assert_cmd[a9b722e4b7e5e85e]::assert::Assert, assert_cmd[a9b722e4b7e5e85e]::assert::AssertError>>::unwrap_or_else::<<assert_cmd[a9b722e4b7e5e85e]::assert::AssertError>::panic<assert_cmd[a9b722e4b7e5e85e]::assert::Assert>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/result.rs:1622:23
[INFO] [stdout]   23:     0x602d743a3860 - <assert_cmd[a9b722e4b7e5e85e]::assert::Assert>::success
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/assert_cmd-2.0.4/src/assert.rs:156:28
[INFO] [stdout]   24:     0x602d74396b58 - cli[d1a788c6aa83b607]::run_read_file
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:63:10
[INFO] [stdout]   25:     0x602d7439718e - cli[d1a788c6aa83b607]::test_empty
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:68:5
[INFO] [stdout]   26:     0x602d74396667 - cli[d1a788c6aa83b607]::test_empty::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:67:16
[INFO] [stdout]   27:     0x602d74398f96 - <cli[d1a788c6aa83b607]::test_empty::{closure#0} as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   28:     0x602d743e726b - <fn() -> core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String> as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   29:     0x602d743e726b - test[6ec0502068880816]::__rust_begin_short_backtrace::<core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String>, fn() -> core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:724:18
[INFO] [stdout]   30:     0x602d743f4ae5 - test[6ec0502068880816]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:747:74
[INFO] [stdout]   31:     0x602d743f4ae5 - <core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<test[6ec0502068880816]::run_test_in_process::{closure#0}> as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   32:     0x602d743f4ae5 - std[929523f510218772]::panicking::catch_unwind::do_call::<core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<test[6ec0502068880816]::run_test_in_process::{closure#0}>, core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40
[INFO] [stdout]   33:     0x602d743f4ae5 - std[929523f510218772]::panicking::catch_unwind::<core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String>, core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<test[6ec0502068880816]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19
[INFO] [stdout]   34:     0x602d743f4ae5 - std[929523f510218772]::panic::catch_unwind::<core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<test[6ec0502068880816]::run_test_in_process::{closure#0}>, core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14
[INFO] [stdout]   35:     0x602d743f4ae5 - test[6ec0502068880816]::run_test_in_process
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:747:27
[INFO] [stdout]   36:     0x602d743f4ae5 - test[6ec0502068880816]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:668:43
[INFO] [stdout]   37:     0x602d743ef644 - test[6ec0502068880816]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:698:41
[INFO] [stdout]   38:     0x602d743ef644 - std[929523f510218772]::sys::backtrace::__rust_begin_short_backtrace::<test[6ec0502068880816]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   39:     0x602d743f7b62 - std[929523f510218772]::thread::lifecycle::spawn_unchecked::<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   40:     0x602d743f7b62 - <core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<std[929523f510218772]::thread::lifecycle::spawn_unchecked<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   41:     0x602d743f7b62 - std[929523f510218772]::panicking::catch_unwind::do_call::<core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<std[929523f510218772]::thread::lifecycle::spawn_unchecked<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40
[INFO] [stdout]   42:     0x602d743f7b62 - std[929523f510218772]::panicking::catch_unwind::<(), core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<std[929523f510218772]::thread::lifecycle::spawn_unchecked<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19
[INFO] [stdout]   43:     0x602d743f7b62 - std[929523f510218772]::panic::catch_unwind::<core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<std[929523f510218772]::thread::lifecycle::spawn_unchecked<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14
[INFO] [stdout]   44:     0x602d743f7b62 - std[929523f510218772]::thread::lifecycle::spawn_unchecked::<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   45:     0x602d743f7b62 - <std[929523f510218772]::thread::lifecycle::spawn_unchecked<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1} as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   46:     0x602d7449733f - <alloc[95e62e727ddf147d]::boxed::Box<dyn core[28b146924c2f19c6]::ops::function::FnOnce<(), Output = ()> + core[28b146924c2f19c6]::marker::Send> as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/alloc/src/boxed.rs:2277:9
[INFO] [stdout]   47:     0x602d7449733f - <std[929523f510218772]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   48:     0x7f475a5d8aa4 - <unknown>
[INFO] [stdout]   49:     0x7f475a665a64 - clone
[INFO] [stdout]   50:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- read_lines_from_files stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'read_lines_from_files' (27) panicked at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5:
[INFO] [stdout] Unexpected failure.
[INFO] [stdout] code-101
[INFO] [stdout] stderr=```"\nthread \'main\' (50) panicked at src/lib.rs:88:10:\nMust use `_os` lookups with `Arg::allow_invalid_utf8` at `lines`\nstack backtrace:\n   0:     0x64449aece878 - std[929523f510218772]::backtrace_rs::backtrace::libunwind::trace\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9\n   1:     0x64449aece878 - std[929523f510218772]::backtrace_rs::backtrace::trace_unsynchronized::<std[929523f510218772]::sys::backtrace::_print_fmt::{closure#1}>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14\n   2:     0x64449aece878 - std[929523f510218772]::sys::backtrace::_print_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:74:9\n   3:     0x64449aece878 - <<std[929523f510218772]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[28b146924c2f19c6]::fmt::Display>::fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:44:26\n   4:     0x64449aee21aa - <core[28b146924c2f19c6]::fmt::rt::Argument>::fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/fmt/rt.rs:152:76\n   5:     0x64449aee21aa - core[28b146924c2f19c6]::fmt::write\n   6:     0x64449aed3f82 - std[929523f510218772]::io::default_write_fmt::<std[929523f510218772]::sys::stdio::unix::Stderr>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:622:11\n   7:     0x64449aed3f82 - <std[929523f510218772]::sys::stdio::unix::Stderr as std[929523f510218772]::io::Write>::write_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:1977:13\n   8:     0x64449aeb92d6 - <std[929523f510218772]::sys::backtrace::BacktraceLock>::print\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:47:9\n   9:     0x64449aeb92d6 - std[929523f510218772]::panicking::default_hook::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:292:27\n  10:     0x64449aeca3b1 - std[929523f510218772]::panicking::default_hook\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:319:9\n  11:     0x64449aeca56b - std[929523f510218772]::panicking::panic_with_hook\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:825:13\n  12:     0x64449aeb9392 - std[929523f510218772]::panicking::panic_handler::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:698:13\n  13:     0x64449aeae579 - std[929523f510218772]::sys::backtrace::__rust_end_short_backtrace::<std[929523f510218772]::panicking::panic_handler::{closure#0}, !>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:182:18\n  14:     0x64449aeb9d7d - __rustc[acf6043c977865fb]::rust_begin_unwind\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:689:5\n  15:     0x64449aee293c - core[28b146924c2f19c6]::panicking::panic_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panicking.rs:80:14\n  16:     0x64449ad8132e - clap[e825e3c55a8eb963]::parse::matches::arg_matches::assert_utf8_validation\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/clap-3.1.12/src/parse/matches/arg_matches.rs:1408:5\n  17:     0x64449ad7af9b - <clap[e825e3c55a8eb963]::parse::matches::arg_matches::ArgMatches>::value_of::<&str>\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/clap-3.1.12/src/parse/matches/arg_matches.rs:145:9\n  18:     0x64449ad7fe2c - headr[fa315824de81b0aa]::get_args\n                               at /opt/rustwide/workdir/src/lib.rs:88:10\n  19:     0x64449ad7aa92 - headr[98ee153358eff5ee]::main\n                               at /opt/rustwide/workdir/src/main.rs:2:21\n  20:     0x64449ad7abab - <fn() as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5\n  21:     0x64449ad7aa1e - std[929523f510218772]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:166:18\n  22:     0x64449ad7aa41 - std[929523f510218772]::rt::lang_start::<()>::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:206:18\n  23:     0x64449aec97f7 - <&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:287:21\n  24:     0x64449aec97f7 - std[929523f510218772]::panicking::catch_unwind::do_call::<&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync, i32>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40\n  25:     0x64449aec97f7 - std[929523f510218772]::panicking::catch_unwind::<i32, &dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19\n  26:     0x64449aec97f7 - std[929523f510218772]::panic::catch_unwind::<&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync, i32>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14\n  27:     0x64449aec97f7 - std[929523f510218772]::rt::lang_start_internal::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:175:24\n  28:     0x64449aec97f7 - std[929523f510218772]::panicking::catch_unwind::do_call::<std[929523f510218772]::rt::lang_start_internal::{closure#0}, isize>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40\n  29:     0x64449aec97f7 - std[929523f510218772]::panicking::catch_unwind::<isize, std[929523f510218772]::rt::lang_start_internal::{closure#0}>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19\n  30:     0x64449aec97f7 - std[929523f510218772]::panic::catch_unwind::<std[929523f510218772]::rt::lang_start_internal::{closure#0}, isize>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14\n  31:     0x64449aec97f7 - std[929523f510218772]::rt::lang_start_internal\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:171:5\n  32:     0x64449ad7aa07 - std[929523f510218772]::rt::lang_start::<()>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:205:5\n  33:     0x64449ad7ac3e - main\n  34:     0x7fe086a5d1ca - <unknown>\n  35:     0x7fe086a5d28b - __libc_start_main\n  36:     0x64449ad7a865 - _start\n  37:                0x0 - <unknown>\n"```
[INFO] [stdout] command=`"/opt/rustwide/target/debug/headr" "-n=2" "tests/inputs/three-lines.txt"`
[INFO] [stdout] code=101
[INFO] [stdout] stdout=""
[INFO] [stdout] stderr="\nthread \'main\' (50) panicked at src/lib.rs:88:10:\nMust use `_os` lookups with `Arg::allow_invalid_utf8` at `lines`\nstack backtrace:\n   0:     0x64449aece878 - std[929523f510218772]::backtrace_rs::backtrace::libunwind::trace\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9\n   1:     0x64449aece878 - std[929523f510218772]::backtrace_rs::backtrace::trace_unsynchronized::<std[929523f510218772]::sys::backtrace::_print_fmt::{closure#1}>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14\n   2:     0x64449aece878 - std[929523f510218772]::sys::backtrace::_print_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:74:9\n   3:     0x64449aece878 - <<std[929523f510218772]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[28b146924c2f19c6]::fmt::Display>::fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:44:26\n   4:     0x64449aee21aa - <core[28b146924c2f19c6]::fmt::rt::Argument>::fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/fmt/rt.rs:152:76\n   5:     0x64449aee21aa - core[28b146924c2f19c6]::fmt::write\n   6:     0x64449aed3f82 - std[929523f510218772]::io::default_write_fmt::<std[929523f510218772]::sys::stdio::unix::Stderr>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:622:11\n   7:     0x64449aed3f82 - <std[929523f510218772]::sys::stdio::unix::Stderr as std[929523f510218772]::io::Write>::write_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:1977:13\n   8:     0x64449aeb92d6 - <std[929523f510218772]::sys::backtrace::BacktraceLock>::print\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:47:9\n   9:     0x64449aeb92d6 - std[929523f510218772]::panicking::default_hook::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:292:27\n  10:     0x64449aeca3b1 - std[929523f510218772]::panicking::default_hook\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:319:9\n  11:     0x64449aeca56b - std[929523f510218772]::panicking::panic_with_hook\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:825:13\n  12:     0x64449aeb9392 - std[929523f510218772]::panicking::panic_handler::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:698:13\n  13:     0x64449aeae579 - std[929523f510218772]::sys::backtrace::__rust_end_short_backtrace::<std[929523f510218772]::panicking::panic_handler::{closure#0}, !>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:182:18\n  14:     0x64449aeb9d7d - __rustc[acf6043c977865fb]::rust_begin_unwind\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:689:5\n  15:     0x64449aee293c - core[28b146924c2f19c6]::panicking::panic_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panicking.rs:80:14\n  16:     0x64449ad8132e - clap[e825e3c55a8eb963]::parse::matches::arg_matches::assert_utf8_validation\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/clap-3.1.12/src/parse/matches/arg_matches.rs:1408:5\n  17:     0x64449ad7af9b - <clap[e825e3c55a8eb963]::parse::matches::arg_matches::ArgMatches>::value_of::<&str>\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/clap-3.1.12/src/parse/matches/arg_matches.rs:145:9\n  18:     0x64449ad7fe2c - headr[fa315824de81b0aa]::get_args\n                               at /opt/rustwide/workdir/src/lib.rs:88:10\n  19:     0x64449ad7aa92 - headr[98ee153358eff5ee]::main\n                               at /opt/rustwide/workdir/src/main.rs:2:21\n  20:     0x64449ad7abab - <fn() as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5\n  21:     0x64449ad7aa1e - std[929523f510218772]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:166:18\n  22:     0x64449ad7aa41 - std[929523f510218772]::rt::lang_start::<()>::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:206:18\n  23:     0x64449aec97f7 - <&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:287:21\n  24:     0x64449aec97f7 - std[929523f510218772]::panicking::catch_unwind::do_call::<&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync, i32>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40\n  25:     0x64449aec97f7 - std[929523f510218772]::panicking::catch_unwind::<i32, &dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19\n  26:     0x64449aec97f7 - std[929523f510218772]::panic::catch_unwind::<&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync, i32>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14\n  27:     0x64449aec97f7 - std[929523f510218772]::rt::lang_start_internal::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:175:24\n  28:     0x64449aec97f7 - std[929523f510218772]::panicking::catch_unwind::do_call::<std[929523f510218772]::rt::lang_start_internal::{closure#0}, isize>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40\n  29:     0x64449aec97f7 - std[929523f510218772]::panicking::catch_unwind::<isize, std[929523f510218772]::rt::lang_start_internal::{closure#0}>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19\n  30:     0x64449aec97f7 - std[929523f510218772]::panic::catch_unwind::<std[929523f510218772]::rt::lang_start_internal::{closure#0}, isize>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14\n  31:     0x64449aec97f7 - std[929523f510218772]::rt::lang_start_internal\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:171:5\n  32:     0x64449ad7aa07 - std[929523f510218772]::rt::lang_start::<()>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:205:5\n  33:     0x64449ad7ac3e - main\n  34:     0x7fe086a5d1ca - <unknown>\n  35:     0x7fe086a5d28b - __libc_start_main\n  36:     0x64449ad7a865 - _start\n  37:                0x0 - <unknown>\n"
[INFO] [stdout] 
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x602d74497a58 - std[929523f510218772]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x602d74497a58 - std[929523f510218772]::backtrace_rs::backtrace::trace_unsynchronized::<std[929523f510218772]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x602d74497a58 - std[929523f510218772]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x602d74497a58 - <<std[929523f510218772]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[28b146924c2f19c6]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x602d744ad86a - <core[28b146924c2f19c6]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x602d744ad86a - core[28b146924c2f19c6]::fmt::write
[INFO] [stdout]    6:     0x602d7449d632 - std[929523f510218772]::io::default_write_fmt::<alloc[95e62e727ddf147d]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:622:11
[INFO] [stdout]    7:     0x602d7449d632 - <alloc[95e62e727ddf147d]::vec::Vec<u8> as std[929523f510218772]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:1977:13
[INFO] [stdout]    8:     0x602d74476346 - <std[929523f510218772]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x602d74476346 - std[929523f510218772]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x602d7448ff29 - std[929523f510218772]::panicking::default_hook
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x602d743f418c - <alloc[95e62e727ddf147d]::boxed::Box<dyn for<'a, 'b> core[28b146924c2f19c6]::ops::function::Fn<(&'a std[929523f510218772]::panic::PanicHookInfo<'b>,), Output = ()> + core[28b146924c2f19c6]::marker::Sync + core[28b146924c2f19c6]::marker::Send> as core[28b146924c2f19c6]::ops::function::Fn<(&std[929523f510218772]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/alloc/src/boxed.rs:2291:9
[INFO] [stdout]   12:     0x602d743f418c - test[6ec0502068880816]::test_main_inner::<test[6ec0502068880816]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x602d744900e2 - <alloc[95e62e727ddf147d]::boxed::Box<dyn for<'a, 'b> core[28b146924c2f19c6]::ops::function::Fn<(&'a std[929523f510218772]::panic::PanicHookInfo<'b>,), Output = ()> + core[28b146924c2f19c6]::marker::Sync + core[28b146924c2f19c6]::marker::Send> as core[28b146924c2f19c6]::ops::function::Fn<(&std[929523f510218772]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/alloc/src/boxed.rs:2291:9
[INFO] [stdout]   14:     0x602d744900e2 - std[929523f510218772]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x602d74476402 - std[929523f510218772]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x602d7446b609 - std[929523f510218772]::sys::backtrace::__rust_end_short_backtrace::<std[929523f510218772]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x602d7447711d - __rustc[acf6043c977865fb]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x602d744adffc - core[28b146924c2f19c6]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x602d7439aaf8 - core[28b146924c2f19c6]::panicking::panic_display::<assert_cmd[a9b722e4b7e5e85e]::assert::AssertError>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panicking.rs:259:5
[INFO] [stdout]   20:     0x602d743a0877 - <assert_cmd[a9b722e4b7e5e85e]::assert::AssertError>::panic::<assert_cmd[a9b722e4b7e5e85e]::assert::Assert>
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/assert_cmd-2.0.4/src/assert.rs:1036:9
[INFO] [stdout]   21:     0x602d743a5f87 - <<assert_cmd[a9b722e4b7e5e85e]::assert::AssertError>::panic<assert_cmd[a9b722e4b7e5e85e]::assert::Assert> as core[28b146924c2f19c6]::ops::function::FnOnce<(assert_cmd[a9b722e4b7e5e85e]::assert::AssertError,)>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   22:     0x602d7439fd5a - <core[28b146924c2f19c6]::result::Result<assert_cmd[a9b722e4b7e5e85e]::assert::Assert, assert_cmd[a9b722e4b7e5e85e]::assert::AssertError>>::unwrap_or_else::<<assert_cmd[a9b722e4b7e5e85e]::assert::AssertError>::panic<assert_cmd[a9b722e4b7e5e85e]::assert::Assert>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/result.rs:1622:23
[INFO] [stdout]   23:     0x602d743a3860 - <assert_cmd[a9b722e4b7e5e85e]::assert::Assert>::success
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/assert_cmd-2.0.4/src/assert.rs:156:28
[INFO] [stdout]   24:     0x602d74396b58 - cli[d1a788c6aa83b607]::run_read_file
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:63:10
[INFO] [stdout]   25:     0x602d743978bb - cli[d1a788c6aa83b607]::read_lines_from_files
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:79:5
[INFO] [stdout]   26:     0x602d74396727 - cli[d1a788c6aa83b607]::read_lines_from_files::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:74:27
[INFO] [stdout]   27:     0x602d74399096 - <cli[d1a788c6aa83b607]::read_lines_from_files::{closure#0} as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   28:     0x602d743e726b - <fn() -> core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String> as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   29:     0x602d743e726b - test[6ec0502068880816]::__rust_begin_short_backtrace::<core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String>, fn() -> core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:724:18
[INFO] [stdout]   30:     0x602d743f4ae5 - test[6ec0502068880816]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:747:74
[INFO] [stdout]   31:     0x602d743f4ae5 - <core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<test[6ec0502068880816]::run_test_in_process::{closure#0}> as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   32:     0x602d743f4ae5 - std[929523f510218772]::panicking::catch_unwind::do_call::<core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<test[6ec0502068880816]::run_test_in_process::{closure#0}>, core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40
[INFO] [stdout]   33:     0x602d743f4ae5 - std[929523f510218772]::panicking::catch_unwind::<core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String>, core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<test[6ec0502068880816]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19
[INFO] [stdout]   34:     0x602d743f4ae5 - std[929523f510218772]::panic::catch_unwind::<core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<test[6ec0502068880816]::run_test_in_process::{closure#0}>, core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14
[INFO] [stdout]   35:     0x602d743f4ae5 - test[6ec0502068880816]::run_test_in_process
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:747:27
[INFO] [stdout]   36:     0x602d743f4ae5 - test[6ec0502068880816]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:668:43
[INFO] [stdout]   37:     0x602d743ef644 - test[6ec0502068880816]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:698:41
[INFO] [stdout]   38:     0x602d743ef644 - std[929523f510218772]::sys::backtrace::__rust_begin_short_backtrace::<test[6ec0502068880816]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   39:     0x602d743f7b62 - std[929523f510218772]::thread::lifecycle::spawn_unchecked::<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   40:     0x602d743f7b62 - <core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<std[929523f510218772]::thread::lifecycle::spawn_unchecked<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   41:     0x602d743f7b62 - std[929523f510218772]::panicking::catch_unwind::do_call::<core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<std[929523f510218772]::thread::lifecycle::spawn_unchecked<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40
[INFO] [stdout]   42:     0x602d743f7b62 - std[929523f510218772]::panicking::catch_unwind::<(), core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<std[929523f510218772]::thread::lifecycle::spawn_unchecked<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19
[INFO] [stdout]   43:     0x602d743f7b62 - std[929523f510218772]::panic::catch_unwind::<core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<std[929523f510218772]::thread::lifecycle::spawn_unchecked<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14
[INFO] [stdout]   44:     0x602d743f7b62 - std[929523f510218772]::thread::lifecycle::spawn_unchecked::<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   45:     0x602d743f7b62 - <std[929523f510218772]::thread::lifecycle::spawn_unchecked<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1} as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   46:     0x602d7449733f - <alloc[95e62e727ddf147d]::boxed::Box<dyn core[28b146924c2f19c6]::ops::function::FnOnce<(), Output = ()> + core[28b146924c2f19c6]::marker::Send> as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/alloc/src/boxed.rs:2277:9
[INFO] [stdout]   47:     0x602d7449733f - <std[929523f510218772]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   48:     0x7f475a5d8aa4 - <unknown>
[INFO] [stdout]   49:     0x7f475a665a64 - clone
[INFO] [stdout]   50:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- read_lines stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'read_lines' (25) panicked at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5:
[INFO] [stdout] Unexpected failure.
[INFO] [stdout] code-101
[INFO] [stdout] stderr=```"\nthread \'main\' (26) panicked at src/lib.rs:88:10:\nMust use `_os` lookups with `Arg::allow_invalid_utf8` at `lines`\nstack backtrace:\n   0:     0x5abe53177878 - std[929523f510218772]::backtrace_rs::backtrace::libunwind::trace\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9\n   1:     0x5abe53177878 - std[929523f510218772]::backtrace_rs::backtrace::trace_unsynchronized::<std[929523f510218772]::sys::backtrace::_print_fmt::{closure#1}>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14\n   2:     0x5abe53177878 - std[929523f510218772]::sys::backtrace::_print_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:74:9\n   3:     0x5abe53177878 - <<std[929523f510218772]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[28b146924c2f19c6]::fmt::Display>::fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:44:26\n   4:     0x5abe5318b1aa - <core[28b146924c2f19c6]::fmt::rt::Argument>::fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/fmt/rt.rs:152:76\n   5:     0x5abe5318b1aa - core[28b146924c2f19c6]::fmt::write\n   6:     0x5abe5317cf82 - std[929523f510218772]::io::default_write_fmt::<std[929523f510218772]::sys::stdio::unix::Stderr>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:622:11\n   7:     0x5abe5317cf82 - <std[929523f510218772]::sys::stdio::unix::Stderr as std[929523f510218772]::io::Write>::write_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:1977:13\n   8:     0x5abe531622d6 - <std[929523f510218772]::sys::backtrace::BacktraceLock>::print\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:47:9\n   9:     0x5abe531622d6 - std[929523f510218772]::panicking::default_hook::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:292:27\n  10:     0x5abe531733b1 - std[929523f510218772]::panicking::default_hook\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:319:9\n  11:     0x5abe5317356b - std[929523f510218772]::panicking::panic_with_hook\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:825:13\n  12:     0x5abe53162392 - std[929523f510218772]::panicking::panic_handler::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:698:13\n  13:     0x5abe53157579 - std[929523f510218772]::sys::backtrace::__rust_end_short_backtrace::<std[929523f510218772]::panicking::panic_handler::{closure#0}, !>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:182:18\n  14:     0x5abe53162d7d - __rustc[acf6043c977865fb]::rust_begin_unwind\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:689:5\n  15:     0x5abe5318b93c - core[28b146924c2f19c6]::panicking::panic_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panicking.rs:80:14\n  16:     0x5abe5302a32e - clap[e825e3c55a8eb963]::parse::matches::arg_matches::assert_utf8_validation\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/clap-3.1.12/src/parse/matches/arg_matches.rs:1408:5\n  17:     0x5abe53023f9b - <clap[e825e3c55a8eb963]::parse::matches::arg_matches::ArgMatches>::value_of::<&str>\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/clap-3.1.12/src/parse/matches/arg_matches.rs:145:9\n  18:     0x5abe53028e2c - headr[fa315824de81b0aa]::get_args\n                               at /opt/rustwide/workdir/src/lib.rs:88:10\n  19:     0x5abe53023a92 - headr[98ee153358eff5ee]::main\n                               at /opt/rustwide/workdir/src/main.rs:2:21\n  20:     0x5abe53023bab - <fn() as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5\n  21:     0x5abe53023a1e - std[929523f510218772]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:166:18\n  22:     0x5abe53023a41 - std[929523f510218772]::rt::lang_start::<()>::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:206:18\n  23:     0x5abe531727f7 - <&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:287:21\n  24:     0x5abe531727f7 - std[929523f510218772]::panicking::catch_unwind::do_call::<&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync, i32>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40\n  25:     0x5abe531727f7 - std[929523f510218772]::panicking::catch_unwind::<i32, &dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19\n  26:     0x5abe531727f7 - std[929523f510218772]::panic::catch_unwind::<&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync, i32>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14\n  27:     0x5abe531727f7 - std[929523f510218772]::rt::lang_start_internal::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:175:24\n  28:     0x5abe531727f7 - std[929523f510218772]::panicking::catch_unwind::do_call::<std[929523f510218772]::rt::lang_start_internal::{closure#0}, isize>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40\n  29:     0x5abe531727f7 - std[929523f510218772]::panicking::catch_unwind::<isize, std[929523f510218772]::rt::lang_start_internal::{closure#0}>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19\n  30:     0x5abe531727f7 - std[929523f510218772]::panic::catch_unwind::<std[929523f510218772]::rt::lang_start_internal::{closure#0}, isize>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14\n  31:     0x5abe531727f7 - std[929523f510218772]::rt::lang_start_internal\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:171:5\n  32:     0x5abe53023a07 - std[929523f510218772]::rt::lang_start::<()>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:205:5\n  33:     0x5abe53023c3e - main\n  34:     0x7299ab05e1ca - <unknown>\n  35:     0x7299ab05e28b - __libc_start_main\n  36:     0x5abe53023865 - _start\n  37:                0x0 - <unknown>\n"```
[INFO] [stdout] command=`"/opt/rustwide/target/debug/headr" "-n=3" "tests/inputs/ten.txt"`
[INFO] [stdout] code=101
[INFO] [stdout] stdout=""
[INFO] [stdout] stderr="\nthread \'main\' (26) panicked at src/lib.rs:88:10:\nMust use `_os` lookups with `Arg::allow_invalid_utf8` at `lines`\nstack backtrace:\n   0:     0x5abe53177878 - std[929523f510218772]::backtrace_rs::backtrace::libunwind::trace\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9\n   1:     0x5abe53177878 - std[929523f510218772]::backtrace_rs::backtrace::trace_unsynchronized::<std[929523f510218772]::sys::backtrace::_print_fmt::{closure#1}>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14\n   2:     0x5abe53177878 - std[929523f510218772]::sys::backtrace::_print_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:74:9\n   3:     0x5abe53177878 - <<std[929523f510218772]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[28b146924c2f19c6]::fmt::Display>::fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:44:26\n   4:     0x5abe5318b1aa - <core[28b146924c2f19c6]::fmt::rt::Argument>::fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/fmt/rt.rs:152:76\n   5:     0x5abe5318b1aa - core[28b146924c2f19c6]::fmt::write\n   6:     0x5abe5317cf82 - std[929523f510218772]::io::default_write_fmt::<std[929523f510218772]::sys::stdio::unix::Stderr>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:622:11\n   7:     0x5abe5317cf82 - <std[929523f510218772]::sys::stdio::unix::Stderr as std[929523f510218772]::io::Write>::write_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:1977:13\n   8:     0x5abe531622d6 - <std[929523f510218772]::sys::backtrace::BacktraceLock>::print\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:47:9\n   9:     0x5abe531622d6 - std[929523f510218772]::panicking::default_hook::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:292:27\n  10:     0x5abe531733b1 - std[929523f510218772]::panicking::default_hook\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:319:9\n  11:     0x5abe5317356b - std[929523f510218772]::panicking::panic_with_hook\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:825:13\n  12:     0x5abe53162392 - std[929523f510218772]::panicking::panic_handler::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:698:13\n  13:     0x5abe53157579 - std[929523f510218772]::sys::backtrace::__rust_end_short_backtrace::<std[929523f510218772]::panicking::panic_handler::{closure#0}, !>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:182:18\n  14:     0x5abe53162d7d - __rustc[acf6043c977865fb]::rust_begin_unwind\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:689:5\n  15:     0x5abe5318b93c - core[28b146924c2f19c6]::panicking::panic_fmt\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panicking.rs:80:14\n  16:     0x5abe5302a32e - clap[e825e3c55a8eb963]::parse::matches::arg_matches::assert_utf8_validation\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/clap-3.1.12/src/parse/matches/arg_matches.rs:1408:5\n  17:     0x5abe53023f9b - <clap[e825e3c55a8eb963]::parse::matches::arg_matches::ArgMatches>::value_of::<&str>\n                               at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/clap-3.1.12/src/parse/matches/arg_matches.rs:145:9\n  18:     0x5abe53028e2c - headr[fa315824de81b0aa]::get_args\n                               at /opt/rustwide/workdir/src/lib.rs:88:10\n  19:     0x5abe53023a92 - headr[98ee153358eff5ee]::main\n                               at /opt/rustwide/workdir/src/main.rs:2:21\n  20:     0x5abe53023bab - <fn() as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5\n  21:     0x5abe53023a1e - std[929523f510218772]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:166:18\n  22:     0x5abe53023a41 - std[929523f510218772]::rt::lang_start::<()>::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:206:18\n  23:     0x5abe531727f7 - <&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:287:21\n  24:     0x5abe531727f7 - std[929523f510218772]::panicking::catch_unwind::do_call::<&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync, i32>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40\n  25:     0x5abe531727f7 - std[929523f510218772]::panicking::catch_unwind::<i32, &dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19\n  26:     0x5abe531727f7 - std[929523f510218772]::panic::catch_unwind::<&dyn core[28b146924c2f19c6]::ops::function::Fn<(), Output = i32> + core[28b146924c2f19c6]::panic::unwind_safe::RefUnwindSafe + core[28b146924c2f19c6]::marker::Sync, i32>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14\n  27:     0x5abe531727f7 - std[929523f510218772]::rt::lang_start_internal::{closure#0}\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:175:24\n  28:     0x5abe531727f7 - std[929523f510218772]::panicking::catch_unwind::do_call::<std[929523f510218772]::rt::lang_start_internal::{closure#0}, isize>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40\n  29:     0x5abe531727f7 - std[929523f510218772]::panicking::catch_unwind::<isize, std[929523f510218772]::rt::lang_start_internal::{closure#0}>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19\n  30:     0x5abe531727f7 - std[929523f510218772]::panic::catch_unwind::<std[929523f510218772]::rt::lang_start_internal::{closure#0}, isize>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14\n  31:     0x5abe531727f7 - std[929523f510218772]::rt::lang_start_internal\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:171:5\n  32:     0x5abe53023a07 - std[929523f510218772]::rt::lang_start::<()>\n                               at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/rt.rs:205:5\n  33:     0x5abe53023c3e - main\n  34:     0x7299ab05e1ca - <unknown>\n  35:     0x7299ab05e28b - __libc_start_main\n  36:     0x5abe53023865 - _start\n  37:                0x0 - <unknown>\n"
[INFO] [stdout] 
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x602d74497a58 - std[929523f510218772]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x602d74497a58 - std[929523f510218772]::backtrace_rs::backtrace::trace_unsynchronized::<std[929523f510218772]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x602d74497a58 - std[929523f510218772]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x602d74497a58 - <<std[929523f510218772]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[28b146924c2f19c6]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x602d744ad86a - <core[28b146924c2f19c6]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x602d744ad86a - core[28b146924c2f19c6]::fmt::write
[INFO] [stdout]    6:     0x602d7449d632 - std[929523f510218772]::io::default_write_fmt::<alloc[95e62e727ddf147d]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:622:11
[INFO] [stdout]    7:     0x602d7449d632 - <alloc[95e62e727ddf147d]::vec::Vec<u8> as std[929523f510218772]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/io/mod.rs:1977:13
[INFO] [stdout]    8:     0x602d74476346 - <std[929523f510218772]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x602d74476346 - std[929523f510218772]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x602d7448ff29 - std[929523f510218772]::panicking::default_hook
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x602d743f418c - <alloc[95e62e727ddf147d]::boxed::Box<dyn for<'a, 'b> core[28b146924c2f19c6]::ops::function::Fn<(&'a std[929523f510218772]::panic::PanicHookInfo<'b>,), Output = ()> + core[28b146924c2f19c6]::marker::Sync + core[28b146924c2f19c6]::marker::Send> as core[28b146924c2f19c6]::ops::function::Fn<(&std[929523f510218772]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/alloc/src/boxed.rs:2291:9
[INFO] [stdout]   12:     0x602d743f418c - test[6ec0502068880816]::test_main_inner::<test[6ec0502068880816]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stderr] error: test failed, to rerun pass `--test cli`
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x602d744900e2 - <alloc[95e62e727ddf147d]::boxed::Box<dyn for<'a, 'b> core[28b146924c2f19c6]::ops::function::Fn<(&'a std[929523f510218772]::panic::PanicHookInfo<'b>,), Output = ()> + core[28b146924c2f19c6]::marker::Sync + core[28b146924c2f19c6]::marker::Send> as core[28b146924c2f19c6]::ops::function::Fn<(&std[929523f510218772]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/alloc/src/boxed.rs:2291:9
[INFO] [stdout]   14:     0x602d744900e2 - std[929523f510218772]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x602d74476402 - std[929523f510218772]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x602d7446b609 - std[929523f510218772]::sys::backtrace::__rust_end_short_backtrace::<std[929523f510218772]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x602d7447711d - __rustc[acf6043c977865fb]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x602d744adffc - core[28b146924c2f19c6]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x602d7439aaf8 - core[28b146924c2f19c6]::panicking::panic_display::<assert_cmd[a9b722e4b7e5e85e]::assert::AssertError>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panicking.rs:259:5
[INFO] [stdout]   20:     0x602d743a0877 - <assert_cmd[a9b722e4b7e5e85e]::assert::AssertError>::panic::<assert_cmd[a9b722e4b7e5e85e]::assert::Assert>
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/assert_cmd-2.0.4/src/assert.rs:1036:9
[INFO] [stdout]   21:     0x602d743a5f87 - <<assert_cmd[a9b722e4b7e5e85e]::assert::AssertError>::panic<assert_cmd[a9b722e4b7e5e85e]::assert::Assert> as core[28b146924c2f19c6]::ops::function::FnOnce<(assert_cmd[a9b722e4b7e5e85e]::assert::AssertError,)>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   22:     0x602d7439fd5a - <core[28b146924c2f19c6]::result::Result<assert_cmd[a9b722e4b7e5e85e]::assert::Assert, assert_cmd[a9b722e4b7e5e85e]::assert::AssertError>>::unwrap_or_else::<<assert_cmd[a9b722e4b7e5e85e]::assert::AssertError>::panic<assert_cmd[a9b722e4b7e5e85e]::assert::Assert>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/result.rs:1622:23
[INFO] [stdout]   23:     0x602d743a3860 - <assert_cmd[a9b722e4b7e5e85e]::assert::Assert>::success
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/assert_cmd-2.0.4/src/assert.rs:156:28
[INFO] [stdout]   24:     0x602d74396b58 - cli[d1a788c6aa83b607]::run_read_file
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:63:10
[INFO] [stdout]   25:     0x602d74396fde - cli[d1a788c6aa83b607]::read_lines
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:86:5
[INFO] [stdout]   26:     0x602d74396607 - cli[d1a788c6aa83b607]::read_lines::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/cli.rs:85:16
[INFO] [stdout]   27:     0x602d74398f16 - <cli[d1a788c6aa83b607]::read_lines::{closure#0} as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   28:     0x602d743e726b - <fn() -> core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String> as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   29:     0x602d743e726b - test[6ec0502068880816]::__rust_begin_short_backtrace::<core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String>, fn() -> core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:724:18
[INFO] [stdout]   30:     0x602d743f4ae5 - test[6ec0502068880816]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:747:74
[INFO] [stdout]   31:     0x602d743f4ae5 - <core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<test[6ec0502068880816]::run_test_in_process::{closure#0}> as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   32:     0x602d743f4ae5 - std[929523f510218772]::panicking::catch_unwind::do_call::<core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<test[6ec0502068880816]::run_test_in_process::{closure#0}>, core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40
[INFO] [stdout]   33:     0x602d743f4ae5 - std[929523f510218772]::panicking::catch_unwind::<core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String>, core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<test[6ec0502068880816]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19
[INFO] [stdout]   34:     0x602d743f4ae5 - std[929523f510218772]::panic::catch_unwind::<core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<test[6ec0502068880816]::run_test_in_process::{closure#0}>, core[28b146924c2f19c6]::result::Result<(), alloc[95e62e727ddf147d]::string::String>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14
[INFO] [stdout]   35:     0x602d743f4ae5 - test[6ec0502068880816]::run_test_in_process
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:747:27
[INFO] [stdout]   36:     0x602d743f4ae5 - test[6ec0502068880816]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:668:43
[INFO] [stdout]   37:     0x602d743ef644 - test[6ec0502068880816]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/test/src/lib.rs:698:41
[INFO] [stdout]   38:     0x602d743ef644 - std[929523f510218772]::sys::backtrace::__rust_begin_short_backtrace::<test[6ec0502068880816]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   39:     0x602d743f7b62 - std[929523f510218772]::thread::lifecycle::spawn_unchecked::<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   40:     0x602d743f7b62 - <core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<std[929523f510218772]::thread::lifecycle::spawn_unchecked<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   41:     0x602d743f7b62 - std[929523f510218772]::panicking::catch_unwind::do_call::<core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<std[929523f510218772]::thread::lifecycle::spawn_unchecked<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:581:40
[INFO] [stdout]   42:     0x602d743f7b62 - std[929523f510218772]::panicking::catch_unwind::<(), core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<std[929523f510218772]::thread::lifecycle::spawn_unchecked<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panicking.rs:544:19
[INFO] [stdout]   43:     0x602d743f7b62 - std[929523f510218772]::panic::catch_unwind::<core[28b146924c2f19c6]::panic::unwind_safe::AssertUnwindSafe<std[929523f510218772]::thread::lifecycle::spawn_unchecked<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/panic.rs:359:14
[INFO] [stdout]   44:     0x602d743f7b62 - std[929523f510218772]::thread::lifecycle::spawn_unchecked::<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   45:     0x602d743f7b62 - <std[929523f510218772]::thread::lifecycle::spawn_unchecked<test[6ec0502068880816]::run_test::{closure#1}, ()>::{closure#1} as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   46:     0x602d7449733f - <alloc[95e62e727ddf147d]::boxed::Box<dyn core[28b146924c2f19c6]::ops::function::FnOnce<(), Output = ()> + core[28b146924c2f19c6]::marker::Send> as core[28b146924c2f19c6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/alloc/src/boxed.rs:2277:9
[INFO] [stdout]   47:     0x602d7449733f - <std[929523f510218772]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/cced03bfd61a304243a34504618ecec86c17063f/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   48:     0x7f475a5d8aa4 - <unknown>
[INFO] [stdout]   49:     0x7f475a665a64 - clone
[INFO] [stdout]   50:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     read_lines
[INFO] [stdout]     read_lines_from_files
[INFO] [stdout]     test_bytes
[INFO] [stdout]     test_empty
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 4 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bfe95f8d77d878bc97127e9b35ddef8bfeacb90881354d08f5e2fe76038676c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfe95f8d77d878bc97127e9b35ddef8bfeacb90881354d08f5e2fe76038676c3", kill_on_drop: false }`
[INFO] [stdout] bfe95f8d77d878bc97127e9b35ddef8bfeacb90881354d08f5e2fe76038676c3
